Hydro Unit
3
PREPARATIONS FOR INSTALLATION
Parts required to connect this product (Common items)
Category
Part
Strainer (water filter)
Drain cock
Water piping
Isolating ball valves
Earth leakage breaker for main power supply
Earth leakage breaker for backup heater
Electrical system
(Option)
Earth leakage breaker for hot water cylinder
heater
Options required for each function
In the Hydro Unit
Purpose
Part name
Heating
Heating &Cooling (all
rooms)
Heating & Cooling
(partly heating only)
Hot water cylinder
150 L
Hot water supply
210 L
300 L
2-zone control
Interlocking with boiler Output control board
kit (1)
Optional Parts
No.
Part name
1
External output board
2
External input board
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.
Model name
–
–
–
–
–
–
HWS-1501CSHM3-E
HWS-1501CSHM3-UK
HWS-2101CSHM3-E
HWS-2101CSHM3-UK
HWS-3001CSHM3-E
HWS-3001CSHM3-UK
–
–
TBC-PCIN3E
Model name
Application
Boiler-linked output, Alarm output
TCB-PCIN3E
Defrost signal output, compressor operation signal
output
Cooling/heating thermostat input
TCB-PCMO3E
Emergency stop signal input.
Specification
1 1/4" 30 to 40 meshes
(for water charge)
1 1/4"
for service 1 1/4"
30 mA
30 mA
30 mA
Purchased part
Part name
Radiator(s), Fan coil(s), Under
floor heating
Fan coil(s)
Motorized 2-way valve (for
cooling)
Motorized 3-way valve
Earth leakage breaker
Motorized mixing valve
Circulator pump
Buffer tank
Boiler
– 5 –
Installation Manual
Quantity
1
1
2
1
1
1
Prescribed specification
Refer to "Control parts
specifications" on page 21.
Refer to "Control parts
specifications" on page 21.
Refer to "Control parts
specifications" on page 21.
Other power supply
Other power supply.
Signal 12 V input function is
required for boiler.
Remarks
Up to two boards (according to
applications)
Up to two boards (according to
applications)
EN
4-EN