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7. HYDRO UNIT INSTALLATION MANUAL
Engineering Data Book
7
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.
4
PRECAUTIONS FOR SAFETY
General Safety Precautions
Ensure that all Local, National and International regulations are satisfied.
• Read the “PRECAUTIONS FOR SAFETY” carefully before installation.
• The precautions described below include the important items regarding safety – Observe them without fail.
• After the installation work has been completed, perform a trial operation to check for any problems. Follow the
Owner’s Manual to explain how to use and maintain the unit to the customer.
• Turn off the main power supply switch (or breaker) before unit maintenance.
• Ask the customer to keep the Installation Manual along with the Owner’s Manual.
Refrigerant Precautions
• If a refrigerant leak is suspected contact the dealer who supplied the system, in the case of a recharge of
refrigerant ask service personnel for details of the leak and confirmation of the repairs completed.
The refrigerant used in the system is harmless.
• Generally the refrigerant does not leak, however, if the refrigerant should leak into a room and a heater or stove
burner in the room is lit, toxic gas may be generated.
• Do not install the system in a location subject to a risk of exposure to a combustible gas.
If a combustible gas leaks and stays around the unit a fire may occur.
• Install the refrigerant pipe securely during installation and before operation.
If the compressor is operated with no pipe work connected and valves open the compressor will suck air which
would result in over pressurization of the system which may result in bursting or injury.
Observe the same precautions for refrigerant recovery work (pump back procedure to outdoor unit) and do not
disconnect pipe work until refrigerant is recovered and valves closed.
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)
Forced-stop signal input
4-EN
Содержание ESTIA HWS-1102H-E
Страница 3: ...2 1 INTRODUCTION ...
Страница 7: ...6 2 SYSTEM OVERVIEW ...
Страница 10: ...9 3 SYSTEM SPECIFICATION ...
Страница 12: ...11 4 HYDRO UNIT ...
Страница 44: ...43 5 OUTDOOR UNIT ...
Страница 57: ...56 6 HOT WATER CYLINDER ...
Страница 63: ...62 7 HYDRO UNIT INSTALLATION MANUAL ...
Страница 107: ...105 8 OUTDOOR UNIT INSTALLATION MANUAL ...
Страница 108: ...AIR TO WATER HEAT PUMP Outdoor Unit Model name HWS 802H E HWS 1102H E HWS 1402H E Installation manual ...
Страница 131: ...129 9 OWNER S MANUAL ...
Страница 146: ...Air to Water Heat Pump Engineering Data Book Aug 2009 ...