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7. HYDRO UNIT INSTALLATION MANUAL
Engineering Data Book
2 ACCESSORY PARTS
3 PREPARATIONS FOR INSTALLATION
Parts required to connect this product (Common items)
Options required for each function
No Parts name Quantity No Parts name Quantity
1 Installation manual (this document) 1 3 Insulator for cooling 1
2 Owner’s manual 1
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 84.
Hot water supply
Hot water cylinder
Motorized 3-way valve
Earth leakage breaker
Refer to “Control parts
specifications” on page 84.
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 84.
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.
Interlocking with
booster heater
Output control
board kit (1)
TBC-PCIN3E Electric heater
Other power supply.
Signal 230 V input function
is required for booster
heater
3-EN
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