hydraulic kit (pump and tank) pictures from prototype
TRANSCRIPT
Hydraulic Kit (pump and tank)
Pictures from prototype
Main CharacteristicsMain Characteristics
Size and shape = 5 HP unitSize and shape = 5 HP unit
100 litre tank for all models100 litre tank for all models
Separate power supplySeparate power supply
Anti Freeze protectionAnti Freeze protection
Hydraulic Kit (pump and tank)
100 litre tank for all models ?100 litre tank for all models ?
The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,
is half the time of the anti-recycling time
Q x 1000 x t x d x Cw x n
V =
Q = Cooling Capacity at the lowest capacity step (W)Q = Cooling Capacity at the lowest capacity step (W)
t = Anti-recycling time of the compressor (s)t = Anti-recycling time of the compressor (s)
= Specific mass of the fluid (kg/m³) = Specific mass of the fluid (kg/m³)
d = Thermostat difference (step length) (°C)d = Thermostat difference (step length) (°C)
Cw = Specific heat of the fluid (J/kg°C) (4186 for water)Cw = Specific heat of the fluid (J/kg°C) (4186 for water)
n = Nr of compressors that can work independentlyn = Nr of compressors that can work independently
100 litre tank for all models ?100 litre tank for all models ?
The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,
is half the time of the anti-recycling time
Water Out (°C)
Timesec.)
7
6
5
Th
erm
osta
t D
iffe
ren
ce
LessWater
MoreWater
100 litre tank for all models ?100 litre tank for all models ?
The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,
is half the time of the anti-recycling time
Water Out (°C)
Timesec.)
7
6
5
Th
erm
osta
t D
iffe
ren
ce Water Volume should be selectedto cope with the anti-recycling timerof the compressor
240Anti Recycling Timer
Compressor On Compressor On
Only 1 compressor:Only 1 compressor:
The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,
is half the time of the anti-recycling time
Example: EUWA20HZ
Nominal Cooling Capacity: 42 kW
Capacity Step: 0 - 100%
Thermostat Difference: 1,5 °C
Anti Recycling Timer: 240’’
Load: 21 kW
Only half the capacity of the chiller is required…
For 1 compressor:For 1 compressor:
The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,
is half the time of the anti-recycling time
During On - mode:
During Off - mode:
System will cool down with a capacity of21 kW
System will heat up with a capacity of- 21 kW
For 1 compressor:For 1 compressor:
The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,
is half the time of the anti-recycling time
Water Out (°C)
Timesec.)
240
Cooling21 kW
Heat Up:21 kW
Th
erm
osta
t D
iffe
ren
ce
Anti Recycling Timer
Compressor Off
For 1 compressor:For 1 compressor:
The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,
is half the time of the anti-recycling time
Out of the formula Q = m * c * T
Q = m / ( t) * c * T
m = (Q * t) / (c * T)m = * Vcwater = 4186 J/kg°C
V = 21000 W * 120 s4186 J/kg°C* 1,5 °C
V = 400 l
For 2 compressors:For 2 compressors:
The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,
is half the time of the anti-recycling time
Example: EUWA20HZ
Nominal Cooling Capacity: 42 kW
Capacity Steps: 0 - 50 - 100%
Thermostat Difference: 1,5 °C
Anti Recycling Timer: 240’’
Load: 21 kW
For 2 compressors:For 2 compressors:
The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,
is half the time of the anti-recycling time
Compressor 1 can operate continuously
Compressor 2 is continuously switched off
Capacity = Load
Constant Temperature is obtained no buffer tank needed
For 2 compressors:For 2 compressors:
The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,
is half the time of the anti-recycling time
Water Out (°C)
Timesec.)
240
Th
erm
osta
t D
iffe
ren
ce
Anti Recycling Timer
Compressor Off
For 2 compressors:For 2 compressors:
The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,
is half the time of the anti-recycling time
Example: EUWA20HZ
Nominal Cooling Capacity: 42 kW
Capacity Steps: 0 - 50 - 100%
Thermostat Difference: 1,5 °C
Anti Recycling Timer: 240’’
Load: 10,5 kW
For 2 compressors:For 2 compressors:Auto lead - lag switching
1 2
1
2
2
1
1 2
CAPACITY LOAD
21 kW 10,5 kWCooling Down
0 kW - 10,5 kWHeating Up
21 kW 10,5 kWCooling Down
0 kW - 10,5 kWHeating Up
On Off
The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,
is half the time of the anti-recycling time
For 2 compressors:For 2 compressors:
The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,
is half the time of the anti-recycling time
Water Out (°C)
Timesec.)
240
Cooling10,5 kW
Heat Up:10,5 kW
Th
erm
osta
t D
iffe
ren
ce
Anti Recycling Timer
Compressor Off
Compressor 1 On Compressor 2 On
The water (glycol) volume should be so big that the time necessary topull down the water temperature equal to the thermostat difference,
is half the time of the anti-recycling time
V = 10500 W * 60 s
4186 J/kg°C* 1,5 °C
V = 100 l
For 2 compressors:For 2 compressors:
10 + 10 + 10
The max. water volume is determined bythe capacity of a 10 Hp compressor
The max. water volume is determined bythe capacity of a 10 Hp compressor
Hydraulic Module
Model Names
EHMC 10 AV1 ( 5 10 HP )
EHMC 15 AV1 (15 HP )
EHMC 30 AV1 ( 20 30 HP)
Model Names
EHMC 10 AV1 ( 5 10 HP )
EHMC 15 AV1 (15 HP )
EHMC 30 AV1 ( 20 30 HP)
Outlook
1284 mm
635 mm724 mmPictures from prototype
Outlook
Modificationto
service panels :
Other Cover !
Pictures from prototype
Water OutletWater Outlet
Water InletWater Inlet
Outlook
Pictures from prototype
Outlook
Air PurgeAir Purge
Pressure portPressure port
(On the same side asthe regulating valve)
Pictures from prototype
Outlook
Pressure GaugePressure GaugeSafety ValveSafety Valve
Pressure regulating Shut-off valve
Pressure regulating Shut-off valve
Pressure portPressure port
Pictures from prototype
Outlook
Water INLET andShut-Off valveWater INLET andShut-Off valve
Drain PlugDrain Plug
Pictures from prototype
ForFreeze-up Protection
ForFreeze-up Protection
Outlook
Main SwitchManual - O - Auto
Main SwitchManual - O - Auto
Pictures from prototype
Field Wiring
Standard : 6 Core
Outlook
Thermal ProtectorThermal ProtectorPump RelayPump Relay
Pictures from prototype
Compatibility
• EHMC 10 AV1– EUWA 5 / 8 /10 H (Z) W1 / T1– EUWY 5 / 8 10 H W1
• EHMC 10 AV1– EUWA 5 / 8 /10 H (Z) W1 / T1– EUWY 5 / 8 10 H W1
• EHMC 15 AV1• EHMC 15 AV1
• EHMC 30 AV1• EHMC 30 AV1
– EUWA 15 H (Z) W1 / T1– EUWY 15 H W1
– EUWA 15 H (Z) W1 / T1– EUWY 15 H W1
– EUWA 20 / 25 / 30 H (Z) W1 / T1– EUWY 20 / 25 / 30 H W1
– EUWA 20 / 25 / 30 H (Z) W1 / T1– EUWY 20 / 25 / 30 H W1
EUWA 5 / 8 /10 H (Z) W1 / T1EUWA 5 / 8 /10 H (Z) W1 / T1
EUWY 5 / 8 10 H W1EUWY 5 / 8 10 H W1
EUWA 5 / 8 /10 H (Z) W1 / T1EUWA 5 / 8 /10 H (Z) W1 / T1EUWA 5 / 8 /10 H (Z) W1 / T1EUWA 5 / 8 /10 H (Z) W1 / T1
InstallationAlongside the chiller or remotelyAlongside the chiller or remotely
A drain pan enables an indoor installationunder all conditions
A drain pan enables an indoor installationunder all conditions
Water inlet is at the same height as the chiller outletWater inlet is at the same height as the chiller outlet
Power supply possible via the chillerPower supply possible via the chiller
Easy hydraulic balancing via pressure regulating valveEasy hydraulic balancing via pressure regulating valve
Options
• 010• 010
• 070• 070
• Freeze-Up Protection
( 200 Watt Heater )
• Freeze-Up Protection
( 200 Watt Heater )
• High Static Pump (30 m H2O)• High Static Pump (30 m H2O)
= Standard