radiance thermal interface units (tiu) rapid - rtiu702xxx · the radiance® tiu comes with a...
TRANSCRIPT
Installation and Maintenance Instructions
Radiance® Thermal Interface Units (TIU)RAPID - RTIU702XXX
Twin plate exchanger unit to generate instantaneous DHW with indirect heating connections.
Designed andmanufacturedin the UK
Conforms to Building Regulations Part L (2010)
ContentsReliance Worldwide Corporation (UK) Ltd 3Dos and Don’ts 4Safety 5Abbreviations 6General Information 6Working Parameters and Specifications 7Dimensions 8Internal System Components Schematic 9 Diagram 10Operation 11 Domestic Hot Water Demand 11 Space Heating Demand 11Installation 12 Unpacking the unit 12Installation - No First Fix Rail and No Stand Off Frame
13
Fitting Location 13 Fitting Template 13 Wall Mounting 13 Connecting the Ball Valves 13 Fitting Template (Example) 14Installation - with First Fix Rail and no Stand Off Frame
15
Mechanical Fixing 15 Installing the First Fix Rail 16 Fitting Template 17 Wall Mounting 17 Connecting the Ball Valves 17Installation - Stand Off Frame with (Optional) First Fix Rail
18
Mechanical Fixing 18 Installing the First Fix Rail for Stand Off
19
Stand Off Frame Assembly 19 Fixing the Stand Off Frame to the FFR for Stand Off Frame
20
Fixing the Stand Off Frame Directly onto the wall
20
Mounting the TIU to the Stand Off Frame
20
Connecting the Ball Valves 21Replacing the Cover 22
Hydraulic Connections 23SharkBite® Metal Push-Fit Connectors 24Electrical Installation 25 Junction Box 26 Circuit Diagram 26Commissioning 27 Flushing the Network 27 Filling the TIU 27 Filling the Primary Circuit 27 FIlling the Mains Water Circuit 27 FIlling the Secondry Circuit 27Differential Pressure Control Valve 28Diverter Valve 29 Disassembly 29 Assembly 30Thermostatic By-pass Valve & Thermostatic Heating Control Valve
31
Zone Valve 31Thermostatic Mixing Valve 32 Servicing the TMV 32Pump 33Heat Meter 33 Error Codes 33 Screen Functions 34Maintenance 35Strainers 35Troubleshooting 36Fault Finding Flowchart 37Symptoms and Actions 38Spares and Accessories 39Commissioning Check Sheet 40Servicing and Service Records 41
Reliance Worldwide Corporation (UK) LtdReliance Worldwide Corporation (UK) Ltd® is part of the Australian based group of companies collectively known as Reliance Worldwide Corporation with two brands represented in the UK: Reliance Water Controls® and SharkBite® .
Reliance Worldwide Corporation have offices and manufacturing plants throughout the world providing a wealth of knowledge and expertise which is delivered throughout our entire product range. Reliance Worldwide Corporation (UK) Ltd have a long history in supplying the sanitary plumbing market and hot water system manufacturers and are at the forefront of developing thermostatic technology in the UK. As specialists in the design, manufacturing and technical support for pressure, temperature and flow control, we also played a key role in the development of unvented hot water systems in the UK. Our Reliance Water Controls range offers a comprehensive selection of thermostatic mixing valves, taps, showers, pressure reducing valves, backflow prevention products, timeflow controls and other plumbing and heating system products.
Our reputation is built upon over of 30 years experience both as a direct supplier and as an OEM manufacturer to many of the UK plumbing and heating industry’s leading brands for safety valves in G3 unvented systems and Underfloor Heating (UFH) Controls.
We are certified manufacturers to BS EN 9001 and 14001 and also have an in house UKAS accredited test laboratory.
We are also members of multiple industry and trade associations, which allows us to remain at the forefront of new regulations and changes within the industry, which we reflect in our ongoing product development and innovations.
3
Dos and Don’ts
Do Not:• Over tighten the union connections as this can split the fibre washer.• Remove the clips at the top of the unit holding the rail connectors in place.• Get any solder, flux or dirt inside the unit or into the ball valves or connections.• Flush and/or pressure test the network while the unit is connected to it.• Flush the primary or secondary side through the unit.• Use flux or chemicals which could harm parts made of stainless steel, brass, copper or
fibre washers
Do:• Always use two tools to block the adjacent part when tightening a union nut connection
so that other connections are not affected and accidentally loosened.• Ensure all connections are leak free after installation
4
SafetyPlease read this instruction and maintenance guide carefully before begining the installation. Reliance Worldwide Corporation (UK) Ltd (RWC UK) accepts no liability for any damage or injury caused by not observing the instructions in this guide. Failure to comply with these instructions will result in the warranty becoming null and void. Keep this manual in a safe place for future reference.
If you are in any doubt, please contact the RWC UK technical department on 01386 712400 or email [email protected] quoting the part number (RTIU702XXX) which is located on the backplate of the TIU.
The Radiance® TIU comes with a standard warranty of 2 years for material and manufacturing defects from date of delivery.
Hot WaterTemperatures in the Radiance TIU can reach up to 95°C and can cause severe burns.
Hot SurfacesThe Radiance TIU can get very hot when operating. Take care when working around the Radiance TIU. Whilst it is operating please avoid touching the pipework and all metal parts, which could be hot and could result in burns.
ElectricityBefore conducting work on the Radiance TIU make sure that it is electrically isolated, either by unplugging it from the mains supply or turning off the isolation switch. Failure to do so could result in electric shock. Electrical installation and servicing must be carried out by a qualified electrician and to the current applicable standards.
Lifting a Radiance TIUThe Radiance TIU weighs up to 45 Kg, always use 2 people to lift the unit. Before lifting make sure that any obstructions are removed. When lifting ensure a stable position is adopted to maintain balance and grip. At the start of the lift, slight bending of the back, hips and knees is preferable to fully flexing the back (stooping) or fully flexing the hips and knees (squatting).
ServicingThe Radiance TIU should be serviced at least annualy by a qualified technician. The servicing record sheet and the recommended maintenance for the Radiance TIU can be on page 41 of this Installation & Maintenance (I&M) guide.
Potable WaterAll the TIU compounds, joints and seals that are in contact with potable water are WRAS approved.
DisposalPlease recycle the cardboard packaging. The Radiance TIU itself cannot be disposed of with household waste. The Radiance TIU needs to be disassembled and the individual components disposed of according to local regulations.
5
AbbreviationsBelow are a list of abbreviations that are used in this booklet:
BCW Boosted Cold Water PHE Plate Heat ExchangerDHW Domestic Hot Water TBPV Thermostatic Bypass ValveDPCV Differential Pressure Control Valve THCV Thermostatic Heating Control ValveFBP Flushing Bypass TIU Thermal Interface UnitFFR First Fix Rail TRV Thermostatic Radiator ValveMCB Miniature Circuit Breaker UFH Under Floor Heating
General InformationRadiance® Thermal Interface Units are part of a heating network which is supplied from a central boiler room. They are designed to provide space heating and domestic hot water to an residence. The TIU is generally located within the apartment and connects to a heat network and boosted cold water on the primary (supply) side and to the space heating and DHW outlets on the secondary side.
Product Description - Rapid (RTIU702XXX)The Rapid family of Radiance TIUs are designed to supply indirect heating (hydraulically separated between the primary and secondary circuit by a plate heat exchanger) and instantaneous DHW. The hot water is heated at the time of use in a plate heat exchanger and not stored in a cylinder.
Intended UsageRadiance TIUs must be installed by a competent person to ensure they perform as designed. All pipe connections and electrical connections must to be completed by trained professionals according to and conform to IEE regulations.
Technical DescriptionThe Rapid family of TIUs are twin-plate (2 PHE) units designed to provide space heating and DHW. The unit connects the primary heat network, the secondary space heating (radiators or UFH) and to the BCW supply to produce DHW.
Heating ControlsThere is no hydraulic by-pass included on the secondary side of the Rapid TIU. This means that the external controls need to switch off the “call for heat” when all valves of the heating system are closed and there is no demand. This will prevent the circulation pump running against a closed system and consequently overheating.
This issue is normally overcome by fitting the heating controls in the coldest room (for example the hall) where the radiator should not fitted with a TRV and all valves at the radiator are fully open. The room thermostat should not be installed in direct sunlight. The hall will now be temperature controlled by the room stat/timer and the radiator in the hall also performs a hydraulic bypass to the unit. All other radiators in the system should be fitted with TRVs.
6
Working Parameters and SpecificationsRapid Specification:Indirect heating and instantaneous domestic hot water unit.
Weight 45 (approx.) KgPressure Rating Primary (max.)
Secondary (max.)Cold water mains (min.)Cold water mains (max.)
10324
barbarbarbar
Temperature Primary (min.)Primary (max.)Domestic hot water
659530-60
°C°C°C
Differential Pressure Primary (max.) Primary (min.)
2.50.5
barbar
Differential Pressure Control Valve
Factory set 0.3 bar
Heat Transfer Capacity *Higher kW available
Heating circuitDHW circuit
1542 (Std.)*
kWkW
DHW Flow Rate Temp. rise from 10°- 50° 15 l/min.Circulation Pump Branded A rated UK
Standard body 130mm(L) with 1½" connections
Pump head 6m
External Connections Primary flow
Primary return
Secondary flow
Secondary return
Boosted cold water
Domestic hot water
22mm SharkBite®
push-fit connections22mm SharkBite
push-fit connections22mm SharkBite
push-fit connections22mm SharkBite
push-fit connections22mm SharkBite
push-fit connections22mm SharkBite
push-fit connections
or
or
or
or
or
or
¾” FBSP
¾” FBSP
¾” FBSP
¾” FBSP
¾” FBSP
¾” FBSP
Thermostatic Bypass Adjustable 40-70 °C
7
Dimensions
504
813
250
All dimensions in mm unless otherwise stated
8
Rapid Internal System Components (Schematic)
Key
1. Ball valve connections 1A - Primary flow (PF) 1B - Primary return (PR) 1C - Secondary flow (SF) 1D - Secondary return (SR) 1E - Domestic hot water (DHW) 1F - Boosted cold water (BCW)
2. Strainers3. Diverter valve for DHW4. Plate heat exchanger - heating5. Circulation pump heating system6. Heat meter (optional)7. Differential pressure control valve8. Thermostatic by-pass valve (optional)9. Primary zone valve10. Patented spring loaded, maintenance free expansion vessel11. Overpressure relief valve with pressure gauge12. Plate heat exchanger - DHW13.Thermostatic mixing valve DHW (optional) 14. Flow sensor DHW15. Thermostatic heating control valve (optional)
9
Rapid Internal System Components (Diagram)
Key
Ball valve connections 1A - Primary flow (PF) 1B - Primary return (PR) 1C - Secondary flow (SF) 1D - Secondary return (SR) 1E - Domestic hot water (DHW) 1F - Boosted cold water (BCW) Bottom connections 1G - Overpressure relief connection2. Strainers3. Diverter valve for DHW4. Plate heat exchanger - heating5. Circulation pump heating system
1A 1B 1 C1 D1E 1F
2
6
7
8
12
3
10
2
14
159
13
11
4
Backplate First Fix Rail (FFR)
5
G1
16
6. Heat meter (optional)7. Differential pressure control valve8. Thermostatic by-pass valve (optional)9. Primary zone valve10. Patented spring loaded, maintenance free
expansion vessel11. Overpressure relief valve with pressure
gauge12. Plate heat exchanger - DHW13.Thermostatic mixing valve DHW (optional)14. Flow sensor DHW15. Thermostatic heating control valve (optional)16. Wiring center
10
OperationThe Rapid TIU can either supply heating or domestic hot water but not both simultaneously. The DHW has an inbuilt priority, the heating will be switched off when DHW is drawn, but as DHW demands are very short, no impact on the heating performance will be experienced.
DHW Demand
When a hot tap is opened potable cold water will flow into the unit at (1F) and through the flow switch (14). The flow switch activates the diverter valve (3) which will divert the primary flow into the PHE for the DHW (12). The potable cold water will be heated in the PHE and exitthe PHE as DHW. The optional TMV (13) will blend the DHW to a pre-set temperature.
Space Heating Demand
The space heating is controlled by external controls (timer, programmable room thermostat). When a demand for heat is generated, the “call for heat” wired into the TIU will activate the primary zone valve (9). This allows the primary hot water to flow through the heat exchanger and simultaneously, start the circulation pump (5) which will pump the secondary circuit through the radiators. The secondary water will be heated in the PHE by the primary hot water flow. The flow rate on the primary side is controlled by the DPCV (7), the primary zone valve (9)and if specified the optional thermostatic heating control valve.
Please see the ‘Electrical Connections’ chapter for the wiring diagram.
TMV (13)
Plate Heat Exchanger (12)
Diverter Valve (3)
Flow Switch (14)
1F
Circulation Pump (5)
Zone Valve (9)
DPCV (7)
TH CV(15)
11
UnpackingPlace the box on a strong, level surface and open the top cover with a box cutter.
On top of the TIU is a cardboard template to protect the cover of the unit, which is also a fitting template. Remove the fitting template from the box and keep it safe for the installation, as it contains all relevant information to mount the unit to the wall.
Remove the white steel cover of the TIU by lifting it out of the box. The cover has hand slots in the centre of both ends where it can be lifted (fig. 1).
When lifting the TIU out of the box make sure that you lift from the corners, holding the backplate or the expansion vessel. Place the TIU on a strong, level surface.
Do not lift the TIU with the pipework or connected valves, as shown below, as this can loosen or damage the pipework and connections.
PRIMARY FLOW
PRIMARY RETURN COLD WATER
MAINS DOMESTIC HOT WATER
COLD WATER OUT
SECONDARY FLOW
SECONDARY RETURN
65mm(CENTRE TO CENTRE)
TOP OF BACK PLATE
FIXING POINT
FIXING POINT
FIXING POINT
FIXING POINT
TOP OF BACK PLATE
Thermal Interface Unit (TIU)
700mm
700mm
479mm
479mm
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
1) Remove this fitting template from the box and keep it
for the installation.
2) Remove the white steel cover of the TIU by holding the
cover by the openings in the centre of either end.
3) Lift the TIU out of the box. When lifting the TIU make
sure that you hold it from the corners, holding the
backplate or the expansion vessel.
Do not hold the TIU from the pipework or components as
this can loosen or damage the pipework and connections.
1) Select a suitable location which will securely support
the weight of the unit (45kg).
2) The fitting template can simply be hung on the
First Fix Rail (FFR) if this option has been fitted.
3) Otherwise, the fitting template needs to be temporarily
held vertically to the wall.
4) Drill through the 4 holes which are marked
“Fixing Points” or use the dimensions printed on the
template.
5) Remove the template and fit suitable wall fixings
before securing the TIU to the wall.
6) The pipe connections at the top are marked with their
location, flow directions and type of connection.
A
12
Installation Radiance® TIUs weigh up to 45kg. Always use 2 people to lift the unit. The boxes are clearly marked with arrows indicating the top of the box. They also have 2 hand slots at both ends to aid handling.
Fig. 1Hand slot
TIU Installation - No First Fix Rail and No Stand Off FrameFitting LocationSelect a location (usually the utility cupboard) where the unit can be fitted securely to the wall. The unit is heavy and needs a sturdy wall and appropriate fixings to support its weight. All pipe connections, with exception of the over pressure relief pipe, are connected at the top. All top connections at the top are terminated in 22mm SharkBite metal push fit ball valves or ¾” FBSP connections.
Fitting TemplateHold the cardboard fitting template level at the intended location of the TIU (fig. 1).
The fitting template should be used to mark where the pilot holes are to be drilled through the 4 points marked “Fixing Point” (fig. 2). The wall is now ready to have the TIU mounted to it.
If the fitting template is not available use the dimensions given on page 14 to mark the location of the fixing points
Wall Mounting1. Insert rawl plugs into the drilled holes.2. Partially insert the 4 screws with metal washers into the rawl plugs.3. Hook the TIU over the 4 screws (fig. 3) and slide down so that the screw head is at the top of the slot (fig. 4). Note: Radiance® TIUs are heavy and weigh up to 45kg. Always use 2 people to lift the units.4. Tighten the screws with a screwdriver.
The TIU is now wall mounted and ready to have the ball valves connected.
fig. 4fig. 3
fig. 1
PRIMARY FLOW
PRIMARY RETURN
COLD WATER MAINS
DOMESTIC HOT WATER
COLD WATER OUT
SECONDARY FLOW
SECONDARY RETURN
65mm(CENTRE TO CENTRE)
TOP OF BACK PLATE
FIXING POINT
FIXING POINT FIXING POINT
FIXING POINT
TOP OF BACK PLATE
www.rwc.co.uk/radianceFor technical support call 01386 712400
Reliance Worldwide Corporation (UK) Ltd, Worcester Road, Evesham, WR11 4RA
Thermal Interface Unit (TIU)
700mm
700m
m
479mm
479mm
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
1) Remove this fitting template from the box and keep it for the installation.2) Remove the white steel cover of the TIU by holding the cover by the openings in the centre of either end.3) Lift the TIU out of the box. When lifting the TIU make sure that you hold it from the corners, holding the backplate or the expansion vessel.
Do not hold the TIU from the pipework or components as this can loosen or damage the pipework and connections.
1) Select a suitable location which will securely support the weight of the unit (45kg).2) The fitting template can simply be hung on the First Fix Rail (FFR) if this option has been fitted.3) Otherwise, the fitting template needs to be temporarily held vertically to the wall.4) Drill through the 4 holes which are marked “Fixing Points” or use the dimensions printed on the template.5) Remove the template and fit suitable wall fixings before securing the TIU to the wall.6) The pipe connections at the top are marked with their location, flow directions and type of connection.
Unpacking the TIU
Fitting the TIU
fig. 2
13
Connecting the Ball Valves to the TIUThe ball valves are supplied loose in a separate box and will have either SharkBite® or ¾”FBSP connections. They connect to the TIU via a flat face fibre washer sealed union nut connection. To connect the ball valves to the TIU:
1. Remove the plastic cap from the ball valves, taking care as the cap contains a loose fibre washer inside.
2. Place a fibre washer in each ¾” FBSP connection.3. Screw the nuts at the top of the TIU onto the ball valves, using the
washer to form a seal. Tighten with a spanner.4. Do not remove the rail clips. These keep the rail connectors in place
and prevents the loosening of internal components.
The TIU is now ready for the pipework connections.
Rail clip
14
PRIMARY FLOW
PRIMARY RETURN
COLD WATER MAINS
DOMESTIC HOT WATER
COLD WATER OUT
SECONDARY FLOW
SECONDARY RETURN
65mm(CENTRE TO CENTRE)
TOP OF BACK PLATE
FIXING POINT
FIXING POINT FIXING POINT
FIXING POINT
TOP OF BACK PLATE
www.rwc.co.uk/radianceFor technical support call 01386 712400
Reliance Worldwide Corporation (UK) Ltd, Worcester Road, Evesham, WR11 4RA
Thermal Interface Unit (TIU)
700mm
700m
m
479mm
479mm
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
1) Remove this fitting template from the box and keep it for the installation.2) Remove the white steel cover of the TIU by holding the cover by the openings in the centre of either end.3) Lift the TIU out of the box. When lifting the TIU make sure that you hold it from the corners, holding the backplate or the expansion vessel.
Do not hold the TIU from the pipework or components as this can loosen or damage the pipework and connections.
1) Select a suitable location which will securely support the weight of the unit (45kg).2) The fitting template can simply be hung on the First Fix Rail (FFR) if this option has been fitted.3) Otherwise, the fitting template needs to be temporarily held vertically to the wall.4) Drill through the 4 holes which are marked “Fixing Points” or use the dimensions printed on the template.5) Remove the template and fit suitable wall fixings before securing the TIU to the wall.6) The pipe connections at the top are marked with their location, flow directions and type of connection.
Unpacking the TIU
Fitting the TIU
This drawing is representative of the fitting template and is not to scale
TIU Installation - with First Fix Rail and no Stand Off FrameThe FFR is intended to be used as a first fix support. It is supplied with six SharkBite® 22mm metal push fit connection ball valves as standard or ¾” FBSP connections are also available, as an alternative. This FFR permits the pipework to be pre-installed independent of the main TIU. The pipework can be flushed and pressure tested, before the TIU is installed and connected to the system.
It is critical that the FFR is installed prior to the TIU.
Mechanical FixingThe drawing below shows the back plate of a TIU mounted onto the optional FFR at the top. The FFR has 2 fixing points with a dimension of 326mm across centres. The back plate has 4 fixing points with a dimension of 479mm across the centre.
Heavy duty screws and rawl plugs should be used, which are suitable for the wall type. The TIU is heavy and weighs up to 45 Kg. If unsuitable screws are used damage could be done to both the wall and the TIU.
All fixing points are large enough to be used with screws up to 8mm in diameter.
15
Diagram shows backplate and first fix rail only for ease of understanding
All dimensions in mm unless otherwise stated
MADE BYAMDT DETAILS DATE CHECKED DATE CHECKED
ZTIU600004
andZTIU600005
ZTIU600004 and ZTIU600005
L Perry
THIS DRAWING AND THE INFORMATION CONTAINED HEREIN IS THE SOLE PROPERTY OF RELIANCE WORLDWIDE, A DIVISION OF GSA INDUSTRIES (AUST.) PTY.LTD. ABN. 71 004 784 301, IS STRICTLY CONFIDENTIAL AND MAY NOT BE USED, COPIED IN WHOLE OR IN PART OR DISCLOSED WITHOUT THE PRIOR SPECIFIC WRITTEN PERMISSION OF RELIANCE WORLDWIDE
19/02/2015
©
-
µm Ra
RelianceWORLDWIDE
700
479
326
137
77
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
PRIMARY FLOW
PRIMARY RETURN
COLD WATER MAINS
DOMESTIC HOT WATER
COLD WATER OUT
SECONDARY FLOW
SECONDARY RETURN
TOP
www.rwc.co.uk/radianceFor technical support call 01386 712400
Reliance Worldwide Corporation (UK) Ltd, Worcester Road, Evesham, Worcestershire, WR11 4RA, UK.
326mm
16
Installing the FFRChoose a suitable location (usually the utility cupboard) ensuring there is sufficient space to fix the TIU below where the TIU can be fitted securely to the wall. The TIU is heavy and needs a sturdy wall and appropriate fixings to support the weight. All pipe connections, apart from the overpressure relief pipe, are connected at the top.
The box that the FFR is supplied in contains a template which assists the installation. To use the template:
1. Hold the cardboard fitting template level at the intended location of the TIU.
2. The fitting template can be used to drill pilot holes directly through the red crosshairs or used to mark the required location of the holes.
3. Insert rawl plugs into the drilled holes.
4. Partially insert the 2 screws with metal washers into the rawl plugs and hook the FFR over them.
5. Tighten the screws with a screwdriver.
17
TIU Fitting TemplateThe TIU fitting template is shown on page 14 (not to scale) and is supplied with the TIU. The cardboard template should be hung directly onto the FFR. The two rectangular openings at the top of the template allow the template to be hung from the FFR (fig. 1).
Once hung, the fitting template can be used to drill pilot holes directly through the 4 points marked “Fixing Point”. Remove the fitting template. The wall is now ready to have the TIU mounted to it.
PRIMARY FLOW
PRIMARY RETURN
COLD WATER MAINS
DOMESTIC HOT WATER
COLD WATER OUT
SECONDARY FLOW
SECONDARY RETURN
65mm(CENTRE TO CENTRE)
TOP OF BACK PLATE
FIXING POINT
FIXING POINT FIXING POINT
FIXING POINT
TOP OF BACK PLATE
www.rwc.co.uk/radianceFor technical support call 01386 712400
Reliance Worldwide Corporation (UK) Ltd, Worcester Road, Evesham, WR11 4RA
Thermal Interface Unit (TIU)
700mm
700m
m
479mm
479mm
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
1) Remove this fitting template from the box and keep it for the installation.2) Remove the white steel cover of the TIU by holding the cover by the openings in the centre of either end.3) Lift the TIU out of the box. When lifting the TIU make sure that you hold it from the corners, holding the backplate or the expansion vessel.
Do not hold the TIU from the pipework or components as this can loosen or damage the pipework and connections.
1) Select a suitable location which will securely support the weight of the unit (45kg).2) The fitting template can simply be hung on the First Fix Rail (FFR) if this option has been fitted.3) Otherwise, the fitting template needs to be temporarily held vertically to the wall.4) Drill through the 4 holes which are marked “Fixing Points” or use the dimensions printed on the template.5) Remove the template and fit suitable wall fixings before securing the TIU to the wall.6) The pipe connections at the top are marked with their location, flow directions and type of connection.
Unpacking the TIU
Fitting the TIU 65mm(CENTRE TO CENTRE)
TOP OF BACK PLATE
PRIMARY FLOW
PRIMARY RETURN
fig. 1
fig. 2 fig. 3
Wall Mounting1. Insert rawl plugs into the drilled holes.2. Partially insert the 4 screws with washers into the rawl plugs.3. Hook the TIU over the 4 screws (fig. 2) and slide down so that the
screw head is at the top of the slot (fig. 3). Note: Radiance® TIUs are heavy and weigh up to 45kg. Always use 2 people to lift the units.
4. Tighten the screws with a screwdriver.
The TIU is now wall mounted and ready to have the ball valves connected.
Connecting the Ball Valves to the TIUThe ball valves are supplied loose in a separate box and will have either SharkBite® or ¾”FBSP connections. They connect to the TIU via a flat face fibre washer sealed union nut connection. To connect the ball valves to the TIU:
1. Remove the plastic cap from the ball valves, taking care as the cap contains a loose fibre washer inside.
2. Place a fibre washer in each ¾” FBSP connection.3. Screw the nuts at the top of the TIU onto the ball valves, using the
washer to form a seal. Tighten with a spanner.4. Do not remove the rail clips. These keep the rail connectors in
place and prevents the loosening of internal components.
The TIU is now ready for the pipework connections.
Rail clip
TIU Installation - Stand Off Frame with First Fix RailThe stand off frame enables the pipework to be routed from below the TIU and run behind the TIU by locating the TIU away from the wall by 40mm. If the stand off frame is to be used in conjunction with a FFR it must be used with the FFR for stand off frame only. It will not work with the normal FFR and the pipework will not align.
The FFR for the stand off frame must be wall mounted first, as the stand off frame hooks onto, it to provide location.
Mechanical FixingThe drawing below shows the back plate of a TIU, mounted to the stand off frame, and with the optional FFR. The FFR has 2 fixing points with a dimension of 454mm across the centre. The back plate has 4 fixing points with a dimension of 479mm and 700mm across the centres.
Heavy duty screws and rawl plugs should be used, which are suitable for the wall type. The TIU is heavy and weighs up to 45 Kg. If unsuitable screws are used damage could be done to both the wall and the TIU.
All fixing points are large enough to be used with screws up to 8mm in diameter.
18
45412
141
700
479
Diagram shows backplate and first fix rail only for ease of understanding
All dimensions in mm unless otherwise stated
19
Installing the FFRChoose a suitable location (usually the utility cupboard) ensuring there is sufficient space to fit the TIU below where the TIU can be fitted securely to the wall. The TIU is heavy and needs a sturdy wall and appropriate fixings to support the weight. All pipe connections, apart from the overpressure relief pipe, are connected at the top.
The box that the FFR for the stand off frame is supplied in contains a template which assists the installation. To use the template:
1. Hold the cardboard fitting template level at the intended location of the TIU.
2. The fitting template can be used to drill pilot holes directly through the red crosshairs or used to mark the required location of the holes.
3. After drilling the holes in the correct location, insert appropriate fittings into the wall.4. Using suitable screws and washers, insert them into the rawl plugs and screw the FFR for the
stand off frame to the wall.
The FFR for stand off frame is now ready to have the stand off frame attached.
Stand Off Frame AssemblyTo assemble the stand off frame please follow the steps below:
1. Take the 2 cross brace pieces and open to form a cross. (fig. 1)
454mm
65mm(CENTRE TO CENTRE)
PRIMARY FLOW
PRIMARY RETURN
COLD WATER MAINS
DOMESTIC HOT WATER
COLD WATER OUT
SECONDARY FLOW
SECONDARY RETURN
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
65mm(CENTRE TO CENTRE)
fig. 1 fig. 2
2. Push the cross brace onto the push fasteners on the left and right brackets.
(fig. 2)
Bracket
Cross Brace
Push Fastener
Fixing the Stand Off Frame onto the FFR for Stand Off FrameThe stand off frame can be hooked onto the pins on the FFR.
With the stand off frame hanging on the FFR holes can be drilled into the wall, using the holes in the stand off frame as guides. Insert rawl plugs into the drilled holes. Insert and tighten screws and washers to secure the stand off frame to the wall.
The stand off frame is now ready to have the TIU mounted to it.
Fixing the Stand Off Frame Directly onto the Wall If you are utilising the stand off frame without the FFR please conduct the following steps:
1. Use the cardboard fitting template, supplied with the TIU, level at the intended location of the TIU. The fitting template can be used to mark where the pilot holes are required at the points marked ‘Fixing Point’. There are 4 fixing points, drill the holes.
2. Insert rawl plugs into the drilled holes.3. Partially screw the 4 screws with metal washers into the rawl plugs.4. Hook the stand off frame over the 4 screws and slide down so that the screw heads are at
the top of the slot.4. Tighten the screws with a screwdriver.
The stand off frame is now ready to have the TIU mounted to it.
Mounting the TIU to the Stand Off FrameTo mount the TIU to the stand off frame, conduct the following steps:
1. Unscrew the 4 bolts and washers from the brackets. These are to be retained to secure the TIU to the stand off frame.
2. Remove the cover from the TIU. Using 2 people to lift, offer up the TIU to the stand-off frame on the wall.
3. Fasten the TIU to the stand-off frame using the bolts and washers provided.
The TIU and stand off frame are now wall mounted and the TIU is ready to have the ball valves connected.
20
Connecting the Ball Valves to the TIUThe ball valves are supplied loose in a separate box and will have either SharkBite® or ¾”FBSP connections. They connect to the TIU via a flat face fibre washer sealed union nut connection. To connect the ball valves to the TIU:
1. Remove the plastic cap from the ball valves, taking care as the cap contains a loose fibre washer inside.
2. Place a fibre washer in each ¾” FBSP connection.3. Screw the nuts at the top of the TIU onto the ball valves, using the washer to form a seal.
Tighten with a spanner.4. Do not remove the rail clips. These keep the rail connectors in place and prevents the
loosening of internal components.
The TIU is now ready for the pipework connections.
21
Replacing the CoverTo replace the cover of the TIU:
1. Hold the TIU cover by the hand slots.
2. On the inside of the cover there are 4 lugs. Align these with the slots on the TIUs backplate.
3. Align the lugs with the slots, push back and slide the cover downwards, making sure that the bottom of the backplate is inside the cover and that the overpressure relief valve pipe sits in its slot.
Backplate must be inside the cover
Pipe in slot
22
Hydraulic Connections - TopThe following table lists all top connections of the TIU listed from left to right and are also on the fitting template.
Connection Number Description Flow Direction1A Primary (network) flow Down / into TIU1B Primary (network) return Up / out of TIU1F Boosted cold water mains Down / into TIU1E Domestic hot water Up / out of TIUNot marked on hydraulic diagram
Metered cold water (optional) Up / out of TIU
1C Secondary (heating) flow Up / out of TIU1D Secondary (heating) return Down / into TIU
Note: If you are using the ¾”FBSP connectors ensure no flux gets into the TIU when soldering or brazing pipework, as the flux will damage the stainless steel pipe.
Hydraulic Connections - BottomThere is a connection required at the bottom of the TIU for the overpressure relief pipe (1G). Connect to the ¾” BSP female union nut with an adaptor suitable for your pipework or directly to a tundish.
Optional First Fix Rail (FFR)
When using the optional FFR, all hydraulic connections at the top of the unit can be connected to the pipework prior to fitting the TIU. The pipework can then be pressure tested and flushed, before the TIU is installed.
All connections at the top are terminated in ¾” quarter turn ball valves. The connection of the ball valve to the pipework is made via a 22mm SharkBite® metal push-fit connectors or ¾” female BSP connection. This allows for a variety of different pipe materials to be used by selecting the correct transition fitting.
1A 1B 1F 1E 1C 1D
Also available with ¾” FBSP connectors
23
1A 1B 1 C1 D1E 1F
2
6
7
8
12
3
10
2
14
159
13
11
4
Backplate First Fix Rail (FFR)
5
G1
16
SharkBite® Metal Push-Fit Connectors
The First Fix Rail (FFR) and ball valves are supplied with SharkBite metal push-fit connectors as standard. SharkBite is a versatile, easy to fit, secure and watertight brand of push-fit plumbing fittings. SharkBite can connect Copper to PEX pipe, Copper to Carbon Steel pipe, PEX to Polybutylene and chromed copper to PEX pipe. Please note if SharkBite is to be used with chromed copper the pipe must be scribed using a SharkBite scribing tool (Product code SB3415).
SharkBite is fully demountable, by using either the demount clip or demount tongs, and instantly reusable.
To connect the pipework to the SharkBite ball valves:
1. Cut the pipe square and deburr.
2. Mark insertion depth using the depth marker on the demount clip or use a tape measure.
3. Push pipe into fitting up to the depth mark with a slight twist.
If you need to remove the pipe:
1. Demount by using the disconnecting clip (snap clip against release collar and pull pipe at the same time).
or
2. Demount by using disconnecting tongs (push tongs over pipe, squeeze tongs together and pull pipe at the same time).
To see the full range of SharkBite metal push-fit fittings please visit www.sharkbiteplumbing.co.uk
24
Electrical InstallationThe TIU is internally pre-wired. There are only 2 external cables requiring connection: the mains supply and the heating controls. All electrical installations must be made to the latest wiring regulations by an approved installer.
The mains supply should be protected by a 3A fuse or MCB and also have an isolation switch close to the TIU. All electrical connections are made inside the junction box on the left hand side of the terminal strip X1. There are 6 terminals with the one at the bottom being X1/1 and the on at the top X1/6.
The mains supply cable connects to:• Live: X1/4• Neutral: X1/3• PE: X1/1
The heating controls are not part of the TIU. They are supplied separately. Any standard room thermostat/timer can be used, which will either switch a volt free contact or supply a switched “call for heat” (supplied from the same mains supply as used for the TIU).
The volt free contact from the heating controls connects to:• Live: X1/4• Switched Live: X1/6
Mains supply3A fused/switch
3 or 4 core cable
Programmable room thermostat
TIU
25
Junction Box
Circuit Diagram
ZVDIVERTERVALVEACTUATOR
L
PE
N
x1/4 x1/4
x1/4
x1/3
x1/3 x1/2
x1/2
x1/1
x1/5 x1/6
x1/1
BACKPLATE
EXTERNALTIMER STATFS
~
EXTERNAL SUPPLY
GRN/YEL
BLK 1
BLK
BLK 2BRN
BRN
BLUBRN
BRNGRN/YEL
BLU
6
5
4
3
2
1
BACKPLATE
DIVERTER VALVE ACTUATOR
PUMP
FLOWSWITCH
BRN
BRN
BLK2
BLK
BLK1
BRN
BLU
BLU
BLU
GRN/YEL
BLU
ZONE VALVE
LIVEBRN
NEUTRALBLU
PEGRN/YEL
X1
CABLE 1MAINS
CABLE 2PROG.ROOM STAT
SWITCHED LIVE/ BOILER CALL FOR HEAT
IF NECESSARY
26
Commissioning - Flushing the NetworkWe recommend to flush and pressure test the network, before the TIU is connected to it. This can be done by using the optional flushing-by-pass valve or by temporarily connecting a piece of pipe between the primary flow and return connections. Ensure that you do not flush through the unit. Radiance TIUs are assembled in a controlled environment and are clean at delivery.
Filling the TIUThere are 3 independent hydraulic circuits within the TIU. Each one needs to be full before the unit can be commissioned and operated. Ensure that there are no leaks in the installation, each TIU is leak tested prior to dispatch. If any leaks are detected within the TIU then tighten the leaking union connection by utilising 2 spanners: one to hold the nut and the second to hold the fitting. This will prevent any other connections from coming loose.
Filling the Primary Circuit1. Slowly open the ball valve (1A) on the primary
flow connection. This will fill the unit from the primary network through the strainer.
2. Next open the primary return ball valve (1B). Any air within the unit will bleed into the network due to the top connections.
Filling the Mains Water Circuit3. Slowly open the ball valve (1D) on the mains
water connection. 4. Next open the domestic hot water ball valve
(1C). Any air within the unit will be flushed out, when the DHW is run.
Filling the Secondary Circuit5. Slowly open the ball valve (1E) on the
secondary return connection. This will fill the unit from the secondary network through the strainer.
6. Next open the secondary flow ball valve (1F). Any air within the unit will bleed into the network due to the top connections.
The fill point for the secondary circuit is installed external to the TIU. Fill the secondary circuit to a pressure between 1.0 bar & 1.5 bar.
1A 1B 1F 1E 1C 1D
1A 1B 1F 1E 1C 1D
1A 1B 1F 1E 1C 1D
27
Differential Pressure Control ValveThe DPCV is factory set at 30kPa. If there is a requirement to change the setting, insert a 4mm allen key and rotate anti-clockwise as far as possible and the spring is completely loose to achieve the 20kPa. Rotate the allen key clockwise the number of rotations that corresponds with the required differential pressure setting as detailed in the table below.
Always ensure that the DPCV is fully open. To do this turn the black knob anti-clockwise until the valve is fully opened.
Bleeding the DPCVEnsure that the primary circuit is full and pressurised.
Using an 8mm spanner, loosen the capillary tube nut at the connection side of the valve by turning the nut anti-clockwise ½ a turn.
Allow all air to bleed out of the tube until water begins to appear then tighten the connection by rotating the nut clockwise.
Turns kPa0 201 212 223 244 255 266 277 298 309 31
10 3311 3412 3513 3714 3815 3916 40
28
DPCV Open/Close
Knob
29
Fig. 1 Fig. 2
Fig. 4
2. Undo the screw, below the knob, with a screwdriver and remove. (fig. 2)
4. Remove the adaptor. (fig. 4)
Fig. 3
Diverter Valve - DisassemblyTo disassemble the diverter valve conduct the following steps:
Actuator Head
Adaptor
3. Remove the actuator head by gripping it and pulling upwards. (fig. 3)
1. Pull the knob off by gripping it and pulling upwards. (fig. 1)
AssemblyTo re-assemble the valve conduct the following sequence:
Flat edge
Fig. 5
Ring
Fig. 7
Fig. 8 Fig. 9
Fig. 10
Fig. 11
30
Fig. 6
Slot Ring
Flat Edge
1 . Rotate the shaft to ensure that it is in the correct configuration. The flat edge must be horizontal at the bottom of the valve as per fig. 5.
2. Locate the adaptor back onto the shaft ensuring the slot aligns with the flat edge (fig. 5) and the collar away from the valve. (fig. 6 & 7)
3. On the actuator, replace the knob (fig. 8), with the red section showing. Turn the knob clockwise until it stops on the limit (fig.9). Then remove the knob.
4. Replace the actuator head onto the adaptor. (fig. 10)
5. Insert and tighten the screw so that the actuator head is secured onto the body. (fig.11)
6. Replace the knob by pushing it onto the actuator head ensuring to fully insert the knob so that the red section does not show. (fig 12)
Red section
Fig. 12
Thermostatic By-pass Valve & Thermostatic Heating Control ValveThe temperature increases by 5°C by each number displayed on the head:
0 = 40°C1 = 45°C2 = 50°C3 = 55°C4 = 60°C5 = 65°C6 = 70°C
To adjust the temperature push down on the plastic lock ring and rotate the head to the desired number/temperature. Once the correct temperature has been selected push the lock ring back to its original position to lock the head in place.
Zone ValveThe flow rate on the zone valve is adjusted by rotating the square face of the brass nut with either a small adjustable spanner or pliers. When adjusting the zone valve the flow rate can be checked on the heat meter (option 5 on the heat meter display) to establish when you have reached the desired flow rate.
If the square faces of the brass nut are turned all the way to the top the valve is fully open. When it is rotated all the way to the bottom the valve is fully closed.
31
Lock ring
Temperature indicator
1. Remove the screw which secures the cap by using a 2.5mm allen key then lift the cap off.
2. With both the hot and cold supplies turned fully on and the terminal fitting (e.g. outlet/tap) is open, adjust the temperature to the required setting by using the cap to turn the adjustment spindle. The temperature will need to be measured at the point of use to ensure it is set correctly.
3. Turn the cap clockwise to decrease or anti-clockwise to increase the temperature.
4. Once the correct temperature has been set re-fit the cap, ensuring it is secured through the slots on the locking ring so that the valve cannot be adjusted by the end user.
fi g. 1
32
Servicing the Valve
1. Turn off all ball valves at the top of the unit to isolate it from the network.
2. Remove the TMV from the installation by loosening the nuts on the corrugated pipe.
3. To clean the internals of the main TMV body, first remove the cap using a 2.5mm allen key, followed by the plastic locking ring, then finally carefully remove the valve headwork by unscrewing the large hex nut. Make note of the orientation of the parts as they are removed so that they can be reassembled in the correct manner (see fig. 1 for reference).
4. Slide the piston and thermostat assembly out of the TMV body and clean all internal surfaces and ‘O’ rings with a weak solution of scale remover approved for use with potable water.
5. Using a WRAS approved silicone based waterproof grease, lightly lubricate the ‘O’ ring in the body and the external surface of the piston.
6. After cleaning, re-assemble the TMV. Tighten the pipework onto the valve, with a washer. Exercise, re-set and test the temperature at an outlet to make sure it is at the desired temperature.
Cap
LockingRing
Piston
Thermostat
Spring
Locking Slots
Thermostatic Mixing Valve
The Heatguard thermostatic mixing valve is supplied factory set at 55˚C. To adjust this setting proceed as follows:
PumpThere are 3 speed settings, which can be selected directly on the circulation pump (5) by pressing the ‘B’ button. Initially start at setting 1 (the lowest) and balance the radiator system. Only increase the setting, if the pump head is insufficient to heat all radiators on the circuit equally. To adjust the setting press the button on the pump to cycle through the settings.
Heat MeterThe symbols shown in the table below indicate the meter’s operational status. These status messages appear in the main display. The warning triangle may appear temporarily due to special operating states but this does not indicate the device is malfunctioning.
If more than one error appears the sum of the error codes is displayed. E.g. Error 1005 = 1000 and error 5.
Symbol Status EventExternal voltage -
Flow present -
Attention Check system/device for error
Symbol flashing: data transmissionSymbol constantly displayed: optical interface active
-
Emergency operation Replace device
Code Error Event1 Temperature out of measuring range Check temperature2 Temperature out of measuring range Check temperature3 Short-circuit return sensor Check temperature4 Interruption return sensor Check temperature5 Short-circuit supply sensor Check temperature6 Interruption supply sensor Check temperature7 Battery voltage Replace device8 Hardware error Replace device9 Hardware error Replace device10 Error in the measuring system Replace device20 No water in the measuring tube Check operating pressure30 Reverse water flow detected Check installation position40 Air inside the medium Vent system50 Measured value outside overload range Check dimensioning100 Hardware error Replace device800 Wireless interface Replace device1000 Status end of the battery Replace device2000 Status initial verification expired Replace device
B
33
Screen FunctionsTo wake up the meter from sleep mode hold down the grey button for 5 seconds until the display shows. Please note the display refreshes every 4 seconds.
This is the main display screen which, when the grey button is pressed, will scroll through the different screens (1-9). On the last screen, the current output screen, press the grey button to return to the first screen (the display test). Staying on the same screen for more than 2 minutes will return to the first screen.
Display TestThis screen shows all of the symbols on the display to ensure they are functioning. It alternates between all segments on and all segments off.
Date Last Billing DateThis shows the billing date.
Energy Last Billing DateThis is the energy, in megawatt hours (MWh) recorded at the last billing date.
Recorded VolumeThis shows the total volume in metres cubed (m³) through the heat meter since it has been installed
Flow RateThis shows the current flow rate in cubic metres per hour (m³/h).
Flow TemperatureThis shows the flow temperature entering the TIU in degrees Celsius (°C).
Return TemperatureThis shows the return temperature returning from the TIU in °C.
Temperature DifferenceThis shows the temperature difference between the flow & return in °C.
Current Heat OutputThis shows the current heat output in kilowatts (kW).
For further settings please refer to the separate heat meter manual supplied with the TIU.
Heat energy(Main display)
Volume
Flow temperature
Return temperature
Temperature difference
Flow rate
Current heat output
S
H
Segment test
1234
1
EnergyLast billing date
1
Date last billingdate
1
2
3
4
5
6
7
8
9
34
MaintenanceThe TIU should be checked and serviced at least once a year. Remove the cover and check for any possible leaks. If a leak is found tighten the connection.
To test the TIU is working correctly run a hot water tap to test the DHW production and then switch on the heating to test the heating circuit. This will test the circulation pump and diverter and zone valve.
There is no need to maintain the expansion vessel. The expansion vessel is of a unique, patented spring loaded design and does not ustilise an air cushion to generate pressure on the expansion membrane. Because of this, the expansion vessel is totally self regulating and maintenance free.
The only components requiring service inside the TIU are the line strainers on the primary flow and secondary return connection and the TMV (please see page 32 for TMV maintenance guidance).
To check and clean the line strainers conduct the following procedures:
1. Remove the cover of the TIU and isolate the electrical supply to the unit.
2. Turn off all valves at the top of the unit to isolate it from the pipe work.
3. Unscrew the nut of each of the strainer catching any small amounts of water, which may leak from the strainer.
4. Remove the gauze from the strainer, check and clean under clean running water if necessary (using a small brush, such as a toothbrush, can help to dislodge debris).
5. Re-fit the clean gauze, the o-ring sealing the nut should be checked and can be re-used if ok and screw the nut back onto the strainer.
6. Open all valves and check for leaks.
7. Switch on the electrical supply to the unit and test the hot water and heating performance.
8. Replace the TIU cover.
StrainerStrainer
35
Nut
Gauze
TroubleshootingOverview and Procedure
This troubleshooting guide has been designed to help identify any possible problems and provide the solution. It is important to gather as much detailed information as possible when looking for a fault so that you can correctly identify where the problem is located.
Be aware the problem may not always be within the TIU. If the heat network is supplying a primary flow temperature of only 55°C (below the minimum required temperature of 65°C) the TIU will not be capable of supplying the required DHW or heating.
Check and record the following parameters utilising the heat meter:• Primary flow temperature• Primary flow rate with heating on• Primary flow rate with DHW on
Establish what exactly is not working:• Is only the heating working, only the DHW working or are both the heating and DHW not
working? • Is the heating cold or just tepid? • Is the DHW cold or just tepid?
If the heating is working you will see:• The circulation pump running with at least one green LED on at the pump. • The primary zone valve open showing the red indicator clearly protruding from the actuator
body by approx. 3mm (this can take up to 3 minutes after switching the heating on)
If the DHW is on you will see:• The diverter valve actuator is/has rotated the black central knob counter clockwise. • The red mark on the knob has/will move from the 5 o’clock position to the 1 o’clock position.
This is important information to help identify where the issue is. This information will permit you to work through the flow chart overleaf which will guide you to possible issues and solutions.
If you are still experiencing issues after working through the flowchart please contact the RWC UK technical department on 01386 712400 or email [email protected] quoting the part number (RTIU702XXX) which is located on the backplate of the TIU.
36
Fault Finding FlowchartHow To Use The Flow ChartOnce you have established what exactly is not functioning work down the relevant branch of the flow chart below which identifies symptom and action codes.
The symptom and action codes relate to the chart overleaf which highlights the symptom, details the cause and provides an action to resolve the issue.
What exactly is not working?
ONLY DHW working
(Completely cold or tepid DHW)
Symptom Code
ActionCode
S03A08
A09
A10
ONLY heating working
(Completely cold or tepid)
Symptom Code
ActionCode
S04 A11
S05 A12
S06 A13
S07 A14
Heating AND DHW are not working
Symptom Code
ActionCode
S01
A01
A02
A03
A04
S02A05
A06
A07
37
Sym
ptom
C
ode
Sym
ptom
Cau
seA
ctio
nA
ctio
n C
ode
S01
No
heat
ing
and
no
DH
WN
o m
ains
pow
erC
heck
fuse
and
ens
ure
the
mai
ns s
witc
h is
O
NA
01
DP
CV
is c
lose
dO
pen
the
valv
e by
rota
ting
the
blac
k ha
ndle
co
unte
rclo
ckw
ise
as d
etai
led
on p
age
28A
02
Con
nect
ion
ball
valv
es a
re c
lose
dE
nsur
e th
e ba
ll va
lves
are
ope
n w
ith th
e ha
ndle
in th
e ve
rtica
l pos
ition
A03
Div
erte
r val
ve a
ssem
bled
inco
rrec
tlyD
isas
sem
ble
and
reas
sem
ble
the
dive
rter
valv
e ac
tuat
or a
s de
taile
d on
pag
e 30
A04
S02
Insu
ffici
ent D
HW
or
heat
ing
Stra
iner
s ar
e cl
ogge
d w
ith d
ebris
Cle
an s
train
ers
as d
etai
led
on p
age
35A
05E
xter
nal fl
ushi
ng b
y-pa
ss is
ope
nC
lose
the
flush
ing
by-p
ass
valv
eA
06D
PC
V is
set
to th
e in
corr
ect s
ettin
gA
djus
t the
DP
CV
set
ting
as d
etai
led
on p
age
23A
07
S03
Insu
ffici
ent D
HW
N
etw
ork
flow
tem
pera
ture
is to
o lo
w
(less
than
65°
C)
Con
tact
the
netw
ork
oper
ator
A08
TBP
V is
set
too
high
Set
the
TBP
V to
low
est p
ossi
ble
setti
ng
(40°
C) a
s de
taile
d on
pag
e 25
A09
TMV
is s
et to
o lo
wS
et T
MV
to th
e de
sire
d se
tting
as
deta
iled
on
page
26
A10
S04
No
heat
ing
Ext
erna
l hea
ting
cont
rols
are
not
on
or
inco
rrec
tly s
etE
nsur
e th
e tim
er a
nd ro
om th
erm
osta
t are
O
N (p
ress
ove
rrid
e bu
tton
to te
st)
A11
S05
No
heat
ing,
DH
W
wor
king
Flow
sw
itch
is s
tuck
(fau
lty)
Rep
lace
the
flow
sw
itch
A12
S06
Hea
ting
is te
pid
Sec
onda
ry fl
ow te
mpe
ratu
re is
too
low
due
to
the
THC
V b
eing
set
too
low
Incr
ease
the
setti
ng o
n th
e TH
CV
as
deta
iled
on p
age
25A
13
S07
Prim
ary
flow
thou
gh
heat
ing
PH
E d
oes
not f
ully
sto
p
Act
uato
r hea
d of
the
prim
ary
zone
val
ve is
no
t ful
ly ti
ghte
ned
Tigh
ten
the
nut o
f the
act
uato
r hea
d to
fully
se
at th
e he
ad o
n th
e va
lve
as d
etai
led
on
page
25
A14
Sym
ptom
s an
d A
ctio
ns
38
Sym
ptom
C
ode
Sym
ptom
Cau
seA
ctio
nA
ctio
n C
ode
S01
No
heat
ing
and
no
DH
WN
o m
ains
pow
erC
heck
fuse
and
ens
ure
the
mai
ns s
witc
h is
O
NA
01
DP
CV
is c
lose
dO
pen
the
valv
e by
rota
ting
the
blac
k ha
ndle
co
unte
rclo
ckw
ise
as d
etai
led
on p
age
28A
02
Con
nect
ion
ball
valv
es a
re c
lose
dE
nsur
e th
e ba
ll va
lves
are
ope
n w
ith th
e ha
ndle
in th
e ve
rtica
l pos
ition
A03
Div
erte
r val
ve a
ssem
bled
inco
rrec
tlyD
isas
sem
ble
and
reas
sem
ble
the
dive
rter
valv
e ac
tuat
or a
s de
taile
d on
pag
e 30
A04
S02
Insu
ffici
ent D
HW
or
heat
ing
Stra
iner
s ar
e cl
ogge
d w
ith d
ebris
Cle
an s
train
ers
as d
etai
led
on p
age
35A
05E
xter
nal fl
ushi
ng b
y-pa
ss is
ope
nC
lose
the
flush
ing
by-p
ass
valv
eA
06D
PC
V is
set
to th
e in
corr
ect s
ettin
gA
djus
t the
DP
CV
set
ting
as d
etai
led
on p
age
23A
07
S03
Insu
ffici
ent D
HW
N
etw
ork
flow
tem
pera
ture
is to
o lo
w
(less
than
65°
C)
Con
tact
the
netw
ork
oper
ator
A08
TBP
V is
set
too
high
Set
the
TBP
V to
low
est p
ossi
ble
setti
ng
(40°
C) a
s de
taile
d on
pag
e 25
A09
TMV
is s
et to
o lo
wS
et T
MV
to th
e de
sire
d se
tting
as
deta
iled
on
page
26
A10
S04
No
heat
ing
Ext
erna
l hea
ting
cont
rols
are
not
on
or
inco
rrec
tly s
etE
nsur
e th
e tim
er a
nd ro
om th
erm
osta
t are
O
N (p
ress
ove
rrid
e bu
tton
to te
st)
A11
S05
No
heat
ing,
DH
W
wor
king
Flow
sw
itch
is s
tuck
(fau
lty)
Rep
lace
the
flow
sw
itch
A12
S06
Hea
ting
is te
pid
Sec
onda
ry fl
ow te
mpe
ratu
re is
too
low
due
to
the
THC
V b
eing
set
too
low
Incr
ease
the
setti
ng o
n th
e TH
CV
as
deta
iled
on p
age
25A
13
S07
Prim
ary
flow
thou
gh
heat
ing
PH
E d
oes
not f
ully
sto
p
Act
uato
r hea
d of
the
prim
ary
zone
val
ve is
no
t ful
ly ti
ghte
ned
Tigh
ten
the
nut o
f the
act
uato
r hea
d to
fully
se
at th
e he
ad o
n th
e va
lve
as d
etai
led
on
page
25
A14
SparesFor TIU spares please contact our sales team referencing the part name, number or drawing number (see page 8-9)
Telephone: 01386 712400Email: [email protected]
Accessories First Fix Rail with SharkBite® Connections
This rail is intended to be used as a first fix support. The pipe work can be flushed and pressure tested, before the unit is installed and connected to the system. This product includes SharkBite metal push-fit connectors for a quicker, easier installation.
BVAL690014 - 6 Ball Valve RailBVAL690016 - 7 Ball Valve Rail
First Fix Rail with ¾” FBSP Connections
BVAL690011 - 6 Ball Valve Rail BVAL690013 - 7 Ball Valve Rail
Flushing By-Pass Valve AssemblyAn integrated connection/by-pass valve which permits flushing of the network and draining of the system.
BVAL690009 - with ¾” FBSP connectionsBVAL690010 - with SharkBite connections
Meter ReadingAn ultrasonic heat meter can be installed within the unit. A spool piece will be fitted, if the heat meter is not required. The size for the heat meter and spool piece will be standard 110mm x ¾”.
HETM600001 - Ultrasonic Heat Meter
39
Commisioning Check SheetDate Serial No Code RTIU:Engineer Location Meter No
Pre Commisioning Check ListNo Check Item Yes No
1 Installation complete2 No leaks in installation3 All system valves open4 Secondary system filled, pressurised to min of 1 bar or max 2 bar5 Cold water mains supply on6 Heat meter operating (not in sleep mode)7 Permanent and safe power supply available and switched on8 Heating Controls wired in and operating
Valve Settings:Valve and figure reference from page 10
Advised Setting Commisioning Value
Primary Flow Rate DHW
TBPV (Ref 10) 45°C / Setting 1 -DPCV (Ref 7) 30 kPaZone Valve (Ref 9) 150 l/p hr -THCV (Ref 15) 60°C / Setting 4 -TMV (Ref 13) 55°C -
When running the unit for the first time please record the following settings, these can be taken from the heat meter screen (pg 34) :
DHW HeatingPrimary Flow Rate [m3/p hr] (Screen 5)Primary Flow Temperature [°C] (Screen 6)Primary Return Temperature [°C] (Screen 7)
Comments:
Authorisation by commissioning engineer:
Name: Signed:
For and on behalf of:
Name: Signed:
40
Servicing
Radiance TIUs should be serviced at least once a year by a qualified technician.
Service Record
Service date...................................................
Company........................................................
Name.............................................................
Telephone number..........................................
Comments......................................................
.......................................................................
Signature........................................................
Service date...................................................
Company........................................................
Name.............................................................
Telephone number..........................................
Comments......................................................
.......................................................................
Signature........................................................
Service date...................................................
Company........................................................
Name.............................................................
Telephone number..........................................
Comments......................................................
.......................................................................
Signature........................................................
Service date...................................................
Company........................................................
Name.............................................................
Telephone number..........................................
Comments......................................................
.......................................................................
Signature........................................................
Service date...................................................
Company........................................................
Name.............................................................
Telephone number..........................................
Comments......................................................
.......................................................................
Signature........................................................
Service date...................................................
Company........................................................
Name.............................................................
Telephone number..........................................
Comments......................................................
.......................................................................
Signature........................................................
41
Notes
42
Reliance Worldwide Corporation (UK) LtdWorcester Road,
Evesham,Worcester, WR11 4RA,
UK
Tel: +44 (0)1386 712 400 Fax: +44 (0)1386 712 401
www.rwc.co.uk
Reliance Worldwide Corporation (UK) Ltd reserves the right to make changes to the product which may affect the accuracy of information contained in this leaflet.
ZINS702001_003_07-16