Installation Guide

Customer:

Project:

Project Reference:

Date:

more than underfloor

ambiente®

AmbiLowboard (SRB)

AMBILOWBOARD (SRB) SX18 AMBILOWBOARD (SRB) RX18Data sheets can be downloaded directly from our website.

www.ambienteufh.co.uk

AMBILOWBOARD (SRB) INSTALLATION GUIDE

AMBILOWBOARD (SRB) SERIES CONTENTS

Slimline 18mm board

Versatile return and straight sections

High compressive strength

Flexible, pre-grooved screedboard

Suitable for new build and refurbishments

2 AmbiLowboard (SRB) system introduction

3 Technical data

4 Installation method

5 Manifold positioning

6 Commissioning the system

step by step guide

7 Record and reportAmbiLowboard (SRB) is a high density, flexible cement based board solution for laying over a flat subfloor. It is particularly recommended for tiled floor areas because the high compression rating of the board and lap joint detail permits tiles to be laid directly over the top when using a decoupling matting. We recommend priming the boards before laying floor coverings in all cases.

The system uses an Ambiente five layer, 12mm PE-RT with EVOH oxygen barrier pipe. The pre-grooved channels provide installation flexibility as just two board designs can be used for all pipe run combinations. The panels can also be easily routered where required for added flexibility.

Versatile pipe layout

High compressive strength

Lap joint for added strength

Easily adaptable with a router

t 01707 64 91 18 e info@ambienteufh.co.ukAmbiente Installation Guide2

TECHNICAL DATA

Technical

RX18 (Return) SX18 (Straight)

Panel size 1200 x 600 x 18mm 1200 x 600 x 18mm

Edge Type Lapjoint 9/9/10mm Lapjoint 9/9/10mm

Weight (per board) 16kg 17kg

Properties

Density 1150±50 (kg/m3) 1150±50 (kg/m3)

Thermal conductivity ≤0,32 W/(mK) ≤0,32 W/(mK)

Minimum compression

strength5 (kPa) 5 (kPa)

Specific heat capacity 1.1 (kJ/kgK) 1.1 (kJ/kgK)

Air sound 86dB 86dB

Impact sound 28dB 28dB

Ambiente goes beyond just simply the supply of underfloor

heating systems.

At every stage in the project, we offer advice to all parties, in order to assist

in the swift, safe and supportive implementation of your project.

From project initiation to final commissioning, ambiente have every stage of underfloor heating covered.

For any installation questions speak to our installation team today on 01707 64 91 18 or email info@ambienteufh.co.uk.

For any information regarding our products and support call our highly trained sales team today on 01707 64 91 18.

Visit us online at ambienteufh.co.uk for case studies, product resources and more information.

FOR MORE HELP AND ADVICE, CONTACT OUR TEAM OF HIGHLY TRAINED EXPERTS TODAY.

www.ambienteufh.co.uk 3

INSTALLATION METHOD

1 Refer to the design plan drawings and

prepare to lay the floor in accordance with the layout described.

2 Surface must be flat and clean before

laying AmbiLowboard (SRB) Start in the furthest corner of the room that is furthest from where the pipes enter the room.

3 Use one RX board cut in half for areas

where only one return loop is required.

4 Use full width RX boards in areas where

two return loops are required to accommodate both transit pipe for loop 1 and flow and return for loop 2. RX boards are also required in doorways where pipes enter and leave the room.

5 Spread AmbiLowboard (SRB) joint glue

along the bottom lap and lay the lap of adjacent board on top and secure with 16mm lap screws.

6 Starting at the manifold, lay the pipe

according to your design drawing, navigating the most efficient route between the manifold and the zone. Lay the pipe into the pre-grooved boards, as per your system design drawings.

7 On completion of the loop, connect

to the return bar (bottom bar with blue caps). Mark up the manifold tag with the loop length and the room name.

8 Once all loops are installed and

connected to the manifold, pressure test the system.

9 Lay final floor finish after the system

has been successfully pressure tested. We recommend priming the boards before laying floor covering in all cases.

3

120 °C001 LIVING ROOM

1762 W20 °C002 BEDROOM

1084 W

18 °C003 UTILITY

349 W

21 °C004 BATHROOM

519 W

Distributor 1

SS

S

S

Distributor 1

Room Name

Loop Number

Pipe Centers

Loop Length

As Installed

L/min

PA

Mass Flow Rate 390 kg/h Pressure Loss 9 kPa

Room Number

As Installed

Control Stat No T1

200 mm

1

30 m

1

1100

BATHROOM

004

UTILITY

003

BEDROOM

002

LIVING ROOM

001

LIVING ROOM

001

T2

200 mm

2

16 m

0.7

300

T3

200 mm

3

100 m

1.8

8500

T4

200 mm

4

106 m

1.5

6600

T4

200 mm

5

109 m

1.5

6700

Room Name

Room Number

Net Floor Area

Gross Floor AreaDesign Temp.

Air Changes

Heat Loss /m2Total Heat Losses (w)

Downward Losses (w)

Heat Output Required (w)

Heat Supplied by UFH (w)

Surplus (Deficit) (w)

Output / Requirement %

Floor Finish Name

Floor Finish Value (m²*K)/W

LIVING ROOM

001

30.7 m²

31.6 m²

20 °C

1 1/h

55.8 W/m²

1762

125

1586

108 %Wooden Floor Boards (1.5 Tog)

0.15

BEDROOM

002

21.5 m²

21.5 m²

20 °C

1 1/h

50.4 W/m²

1084

84

976

123 %Wooden Floor Boards (1.5 Tog)

0.15

UTILITY

003

2.9 m²

6.2 m²

18 °C

1.5 1/h

55.9 W/m²

349

23

314

74 % Tiles (0.5 Tog)

0.05

BATHROOM

004

4.5 m²

6.4 m²

21 °C

1.5 1/h

81.7 W/m²

519

31

467

70 % Tiles (0.5 Tog)

0.05

1706 1195 231 327

120 219 -83 -140

PLAN VIEW DRAWINGS

ELEVATION DRAWINGS

-3

ELEMENT

Blk/PB 1.80

SECTION DRAWINGS ______________

NA

CONSTRUCTIONNA

NAINTERNAL WALL

EXTERNAL WALL

14467-LM / 26-08-14DESIGN

INFORMATION SUPPLIED

DO NOT SCALE FROM THIS DRAWINGPLEASE REFER TO ORIGINAL ARCHITECTS

DRAWINGS

EXTERNAL DESIGN TEMPPARTY WALL OTHERSIDE TEMP

DESIGN PARAMETERS

HEATLOSS CALCULATIONS HAVE BEEN PRODUCED USING THE VALUES BELOW,CLIENT MUST CHECK ALL ARE CORRECTAND NOTIFY WMS OF ANY DIFFERENCE

Ins CavU VALUE0.35

PARTY WALL

______________

-GARAGE WALL (-)

BASEMENT FLOOR

DOOR

0.25

1.8

ALL ROOM HEIGHTS HAVE BEENCALCULATED AS BEING 2.4 M

ROOM TEMPERATURES AND AIR CHANGERATES ARE DETAILED IN THE

HEATLOSS TABLE

WINDOWS

-

Ins solid

FLOOR 0.25

Ins Pitch1.8

ROOF

VALUES ASSUMED UNLESS TOLD OTHERWISE

D Glazed

0.25Ins solid 0.25

1347-03

INTERMEDIATE FL.

ROOF LIGHTS 1.8D Glazed

Heritage House Tel 01707 649 9221 Woodside Lane Fax 01707 658 967Bell Bar Email enquiries@wms-uk.comHertfordshireAL9 6DE

PROJECT

TITLE

PROVISIONALDRAWING NUMBER REVISION

AS INSTALLEDCONSTRUCTION

DRAWNDATESCALE CHECKED

REV DESCRIPTION DATE

33 Tedworth Square, London, SW3 4DW

14467-LM_GF 02

1:50 @ A1 26 Aug 14 GDC LM

Ground FloorProposed Underfloor Heating Layout

NOTESTHIS DRAWING IS CONFIDENTIAL AND THE COPYRIGHT PROPERTY OFWMS UNDERFLOOR HEATING. IT IS NOT TO BE DISCLOSED, LOANEDOR COPIED WITHOUT WRITTEN PERMISSION. THESE DRAWINGS AREINTENDED FOR GUIDANCE PURPOSES ONLY AND THUS PIPEWORK MAYALTER FROM THAT SHOWN UPON INSTALLATION. DETAILS OF ANYALTERATIONS DURING INSTALLATION SHOULD BE NOTIFIED TO WMSUNDERFLOOR HEATING.ALL DRAWINGS ARE BASED UPON THE INFORMATION SUPPLIED SOTHE CLIENT SHOULD SATISFY THEMSELVES THAT THE DESIGN MEETSALL THE REQUIREMENTS. IF NO SECTION OR ELEVATION DRAWINGSARE SUPPLIED IN NO WAY CAN HEATLOSS CALCULATIONS BEGUARANTEED. SCREED DEPTH AND PIPE POSITIONS MAY ALTER FROMTHAT SHOWN SO CARE MUST BE TAKEN WHEN FIXING TO THE FLOOR.

PRIOR TO THE COMMENCEMENT OF OUR WORKSTHE BUILDING SHOULD BE WATERTIGHT AND THE INTENDED HEATEDFLOOR AREA SWEPT AND CLEAR OF OTHER TRADES. ANY HOLESTHROUGH WALLS NECESSARY FOR THE UNDERFLOOR HEATINGPIPEWORK ARE TO BE MADE PRIOR TO THE INSTALLATION DATE.

IT IS THE RESPONSIBILITY OF THE MAIN CONTRACTOR TO MARK OUTCLEARLY & ACCURATELY ANY FIXTURES/FITTINGS/WALLS ETC, NOT YETINSTALLED, THAT NEED TO BE AVOIDED WITH UFH PIPEWORK.

WATER CONTENT OF PIPEWORK1 METRE OF 17MM PIPE HOLDS 0.14 LITRES OF WATER

UNDERFLOOR HEATING SYSTEMWE RECOMMENDED HANGING THE MANIFOLD AT A MINIMUM OF250MM FROM THE FINISH FLOOR LEVEL. ACCESS TO THE MANIFOLD ISESSENTIAL. UNDERFLOOR HEATING PIPEWORK SHOULD NOT RUNUNDER ANY FIXED APPLIANCES SUCH AS TOILETS OR KITCHEN UNITSUNLESS SPECIFICALLY STATED OTHERWISE. WMS SHOULD BEINFORMED OF ANY FIXING POINTS THAT ARENT INDICATED ON OURDRAWING.UNLESS CLEARLY INDICATED THE ASSUMPTION IS MADE THAT THEFLOOR IS FLAT, LEVEL AND FREE FROM OTHER SERVICES THAT COULDINTERFER WITH OUR PIPEWORK LAYOUTS. NO ALLOWANCE HAS BEENMADE TO INCORPORATE ANY SUCH ITEMS.

PRESSURE TESTINGA PRESSURE TEST OF A MINIMUM OF 3 BAR AND A MAXIMUM OF 6BAR MUST BE APPLIED TO ALL THE UNDERFLOOR HEATING PIPEWORKPRIOR TO AND DURING FLOOR FIXING.

SCREED CURINGA CURING PERIOD OF 21 DAYS FOR CEMENT SCREEDS AND 7 DAYS FORANHYDRITE SCREEDS MUST ELAPSE BEFORE HEAT CAN BE APPLIED FORPRECONDITIONING. CEMENT SCREEDS REQUIRE CURING UNDER APOLYTHENE SHEET FOR THE FIRST 7 DAYS AFTER LAYING TO ACHIEVEOPTIMUM STRENGH. HEAT SHALL BE APPLIED TO THE FLOOR SCREEDINITIALLY USING WARM WATER AT 35°C ON THE FIRST DAY AFTERWHICH THE FLOW TEMPERATURE CAN BE RAISED BY 3°C PER DAYUNTIL THE DESIGN TEMPERATURE IS REACHED.

AMBIENT TEMPERATURESTHE UNDERFLOOR HEATING PIPEWORK SHOULD NOT BE LAID WITHAMBIENT TEMPERATURES OF BELOW 0°C. SCREEDS SHOULD NOT BELAID WITH AMBIENT TEMPERATURES OF BELOW 5°C.

WOOD FLOORSBEFORE TIMBER FLOORING IS LAID UPON HEATED SCREEDS, THESCREED MUST HAVE BEEN CURED AND CONDITIONED TO A MOISTURECONTENT OF APPROXIMATELY 0.5% (CARBIDE METHOD) BY HEATINGTO THE OPERATING CONDITION FOR 5 DAYS. IT IS NOTRECOMMENDED TO LAY TIMBER FINISHES WHOSE MOISTURECONTENT EXCEEDS 8-9% (BY VOUME) AS THE RISK OF WARPING ANDSHRINKAGE DAMAGE WILL BECOME UNACCEPTABLE.THE OPERATIONAL SURFACE TEMPERATURE OF WOOD FLOORSSHOULD NOT EXCEED 27°C AS THIS CARRIES A RISK OF SHRINKAGE.SUBSEQUENT COOLING MAY RESULT IN SWELLING AS EXTRAMOISTURE BECOMES ABSORBED INTO THE WOOD FROM THEATMOSPHERE.THE TIMBER FLOOR MANUFACTURERS INSTRUCTIONS MUST PREVAILIN ALL ASPECTS.

CERAMIC TILES ON WOODEN FLOORSBATHROOM RENOVATION PROJECTS CONTAINING CERAMIC FLOORTILES ON TIMBER SUB-FLOORS REQUIRE EXTRA CARE. ALL FLOORBOARD SUBSTRUCTURES SHOULD BE REPLACED OR OVERLAID WITHSHEETS OF WPB PLYWOOD TO ENSURE MINIMUM FLEXURALMOVEMENT AND THIS SHOULD BE SUCURED USING ADHESIVE ORSCREWS AT 150MM SPACING. CERAMIC TILE ADHESIVE MUSTCONTAIN A FLEXIBLE LATEX ADMIXTURE TO PERMITMICRO-MOVEMENT OF TILES DURING NORMAL OPERATION OF THEFLOOR HEATING SYSTEM. FAILURE TO CARRY OUT THESEINSTRUCTIONS COULD RESULT IN DAMAGE TO THE PIPEWORK, SCREEDOR FLOOR COVERING.

SYSTEM OUTPUTS ARE BASED UPON EN 1264, IF NO FINAL FLOORCOVERING RESISTANCE IS GIVEN DESIGNS WILL DEFAULT TO 0.10 &CALCULATIONS WILL BE ASSUMED AS INDICATED.

SYSTEM INFORMATION

CALCULATIONS BASED UPON CIBSEFLOOR TYPE : B1

20 °C007 PRACTICE

240 W

Room #

Room NameHeat LossInternal Design Temp

INSULATION ASSUME AS PER BUILDING REGULATION REQUIREMENT FOR NEW BUILD PROPERTIES

300

300

GAP BETWEEN PLATES100mm TO 150mm

TYPICAL PLATE LAYOUT(400mm JOIST CENTRES)

25mm

VOID TO BE FILLED WITHROCKWOOL OR SIMILAR(SUPPLIED BY OTHERS)

200mm

17mm DIAMETER

400mm

CROSS SECTION OF PLATE ON JOIST (400mm JOIST CENTRES)WITH PIPE FITTED.

FLOW TEMPERATURE = 55°CRETURN TEMPERATURE = 45°C

Flow manifold

70mm138mm Length

Return manifold

155mm

692(mm)

97 11ports 10

442

3

Length

No. of

542192

122

492392292 642342

54

592

6 8

242

Manifold Pump

Isolation ball valve Manifold brackets Flow meters

Manual air vent

Pressure gauge 345m

m

DIMENSIONS (NTS)

(165mm including mounting bracket)

PUMPED UFH MIXING MANIFOLD (4 port manifold used for example purposes only)

Changed In UFH Layout01 22/08/14Changed In UFH Layout02 26/08/14

3

21

5

6 7

8 9

4

LOOP 1

LOOP 2

t 01707 64 91 18 e info@ambienteufh.co.ukAmbiente Installation Guide4

50 50 50 50

See Manifold Sizing Chart

70

200

Manifold brackets Flow meters

Automatic air vent

Pressure gauge

Isolation ball valve

Flow manifold

Return manifold

57

35

50

75

45

141

UPM3 A UT O

200

340

130155

1

Manifold flow bar

2

Manifold return bar

3

Isolating ball valves

4

CircoMax circulating pump

5

Blending valve

6

Flow meter

7

Actuator head (shown with pre-install caps)

8

Pressure gauge

9

Air vent

10

Filling taps

11

Temperature Gauge

Ambiente manifolds are supplied ready assembled and simply need mounting on brackets prior to installation.

Note that the two manifold bars are offset so that the pipes can pass behind the lower bar for connection to the top bar – we recommend using the top bar as the flow and the bottom bar as the return. The manifold comes left-handed as standard, but can be changed, see opposite for ‘how to change the handing of Ambiente manifolds’.

Manifolds should be positioned where they are easily accessible to allow for future servicing and commissioning. We recommend allowing at least 200mm between the finished floor level and the bottom of the manifold, with 75mm clearance above and at least 50mm at either side.

MANIFOLD POSITIONING

Wiring Centre

230v

t Rel

ay B

ox(if

requ

ired)

Local Fused Spur (on heating RCD)

200m

m m

in. (

400m

m p

ref.)

350m

m10

0mm

220m

m10

0mm

< Fl

ow

> Re

turn

5mm 50mm

min.

> Flow

< Return

Final Floor Level (FFL)

290mm

Isolation points to be installed on primary pipework prior to the manifold for servicing purposes.

100mm min. for supply pipework

165mm 70mm As per table below 50mm min.

50mm min.

1

2

3

4

5

6

7 8

11

10

10

9

50 50 50 50

See Manifold Sizing Chart

70

200

Manifold brackets Flow meters

Automatic air vent

Pressure gauge

Isolation ball valve

Flow manifold

Return manifold

57

35

50

75

45

141

Manifold Sizing Chart

Please Note: Recommended minimum installation clearances: 200mm between the finished floor level (FFL) and bottom of the manifold, 100mm above the manifold. 50mm to either side of the manifold and allow an extra 100mm for the supply pipe work.

Number of ports 1 2 3 4 5 6 7 8 9 10 11 12 13 14

Manifold length (mm) 142 192 242 292 342 392 442 492 542 592 642 692 750 805

Note: It is recommended that a 2 port motorized zone valve be installed on the primary flow before each manifold to prevent excess water pressure.

www.ambienteufh.co.uk 5

COMMISSIONING THE SYSTEM STEP BY STEP CHECKLIST

Filling and flushing the system

Sequence Checklist Completed

1 Close the isolating ball valves that are connected to the manifold on both bars.

2Isolate all zones by screwing down the blue caps on the bottom (return) bar and the flow meters on the top (flow) bar.

3Open the first flow meter (start furthest away from the filling valve) on the top (flow) bar (use the red collar to turn the black section fully anti-clockwise, do not use grips – hand tight only). Ensure that all other flow meters are closed, except the loop that you are flushing.

4Remove the black plastic blanking cap from the filling valve on the top (flow) bar and fit the hose connection/hose which should be connected to the mains water supply. Open the filling valve using the key on the reverse of the drain valve cap.

5 Fix a suitable hose to the drain valve on the bottom bar.

6 Fully loosen the blue protection cap on the bottom bar on the first zone to be filled.

7Open the tap on the mains water supply and open the drain valve on the bottom bar using the key on the reverse of the blanking cap.

8Run water through the loop until air is removed from the system, closing down the blue caps on each loop as it is purged.

9This can now be repeated for each zone by opening the next zone, closing the flushed zone and repeating steps 3-8.

10At this point the system can be pressure tested if required by closing the drain valve and unscrewing all the blue protection caps – the pressure should rise slowly – allow it to rise to 4 bar and then close the filling valve and close off the mains water. This should be left for 24 hours to check for any significant drops in pressure.

Pressure testing using an air compressor

Sequence Checklist Completed

1 Close the isolating ball valves that are connected to the manifold on both bars.

2 Open all zones by unscrewing the blue caps on the bottom (return) bar.

3 Open all flow meters on the top (flow) bar – use the red collar to turn the black section fully anti-clockwise.

4Open the filling valve using the key on the front of the blanking cap and connect the compressor hose up to it. Make sure the drain valve is closed.

5Turn on the air compressor and allow the pressure to rise to 4 bar. Once the desired level has been reached, close the filling valve using the key on the blanking cap. This should be left for 24hrs to check for any significant drops in pressure.

Change the handing of Ambiente manifolds

Sequence Checklist Completed

1 Reverse the handing of the two manifold bars on their brackets.

2 Remove the mixing valve from the base of the pumpset by undoing the nut that connects the two together.

3 Unscrew the blanking cap from the base of the mixing valve. Note: this has a left-handed thread.

4 Then unscrew the pump connection from the top of the mixing valve. Again, this has a left-handed thread.

5 Rotate the mixing valve through 180 degrees and swap the blanking cap and pump connection around.

6 Remount the mixing valve onto the pumpset, making sure you use the rubber washers provided.

t 01707 64 91 18 e info@ambienteufh.co.ukAmbiente Installation Guide6

RECORD AND REPORT

Site details

Site name Date

Address Reference

Technician

Floor level

Pipe reference

Manifold reference

Please tick the appropriate boxes

Installation Re-pressurise Repair

Description Yes No Comments

System left drained

System left full of water

System left under pressure

Test method Hydraulic (Water) Period of test Min 30 mins

Test method Co2 (air) Test pressure Min 4 bar

Sufficient room to attach pumpset (minimum 250mm required) Yes N/A

Has the manifold label been fitted?

Signature of tester Print name Date

Signature of witness Print name Date

www.ambienteufh.co.uk 7

Need more information or advice?

Contact our team of highly trained experts today.

01707 64 91 18

info@ambienteufh.co.uk

www.ambienteufh.co.uk

more than underfloor

ambiente®

Ambiente Heritage House, 1 Woodside Lane, Bell Bar, Hertfordshire AL9 6DEt 01707 64 91 18 e info@ambienteufh.co.uk www.ambienteufh.co.uk