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EN
Hydro Unit
Installation Manual
3
PREPARATIONS FOR INSTALLATION
Parts required to connect this product (Common items)
Options required for each function
Optional Parts
Use specified products for the outdoor unit, Hydro Unit, and hot water cylinder.
Do not use commercially available products.
Use parts that conform to prescribed specifications for parts to be connected to the Hydro Unit.
If unspecified products or parts are used, a malfunction, failure or fire may be caused.
Category
Part
Specification
Quantity
Water piping
Strainer (water filter)
1 1/4" 30 to 40 meshes
1
Drain cock
(for water charge)
1
Isolating ball valves
1 1/4"
for service 1 1/4"
2
Electrical system
Earth leakage breaker for main power supply
30 mA
1
Earth leakage breaker for backup heater
30 mA
1
(Option)
Earth leakage breaker for hot water cylinder
heater
30 mA
1
Purpose
In the Hydro Unit
Purchased part
Part name
Model name
Part name
Prescribed specification
Heating
–
–
Radiator(s), Fan coil(s), Under
floor heating
Heating &Cooling (all
rooms)
–
–
Fan coil(s)
Heating & Cooling
(partly heating only)
–
–
Motorized 2-way valve (for
cooling)
Refer to “Control parts
specifications” on page 21.
Hot water supply
Hot water cylinder
Motorized 3-way valve
Earth leakage breaker
Refer to “Control parts
specifications” on page 21.
150 L
HWS-1501CSHM3-E
HWS-1501CSHM3-UK
210 L
HWS-2101CSHM3-E
HWS-2101CSHM3-UK
300 L
HWS-3001CSHM3-E
HWS-3001CSHM3-UK
2-zone control
–
–
Motorized mixing valve
Refer to “Control parts
specifications” on page 21.
Circulator pump
Other power supply
Buffer tank
Interlocking with boiler Output control board
kit (1)
TBC-PCIN3E
Boiler
Other power supply.
Signal 12 V input function is
required for boiler.
No.
Part name
Model name
Application
Remarks
1
External output board TCB-PCIN3E
Boiler-linked output, Alarm output
Up to two boards (according to
applications)
Defrost signal output, compressor operation signal
output
2
External input board
TCB-PCMO3E
Cooling/heating thermostat input
Up to two boards (according to
applications)
Emergency stop signal input.
4-EN
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