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General Information
supports following thermostats.
Hydro Kit
Type
Mechanical
(1)
Electrical
(2)
(1) There is no electric circuit inside the thermostat and electric power supply to the thermostat is not
required.
(2) Electric circuit such as display, LED, buzzer, etc is included in the thermostat and electric power
supply is required.
(3) Thermostat operates "Heating ON or Heating OFF" signal according to user"s heating target
temperature.
(4) Thermostat operates both "Heating ON or Heating OFF" and "Cooling ON or Cooling OFF" signal
according to user"s heating and cooling target temperature.
CAUTION:
Choosing Heating / Cooling Thermostat
• Heating / Cooling Thermostat must have "Mode Selection" feature to distinguish operation
mode.
• Thermostat shall be a manual changeover design and be able to accept separate heating
and cooling setpoints.
• If above conditions are not kept, the unit can not operation properly.
• Heating / Cooling Thermostat must send cooling or heating signal immediately when
temperature condition is satisfied. No delay time while sending cooling or heating signal is
permitted.
Power
Operating Mode
Heating Only (3)
1~ 230 V
Heating / Cooling (4)
Heating Only (3)
1~ 24 V
Heating / Cooling (4)
Heating Only (3)
1~ 230 V
Heating / Cooling (4)
Heating Only (3)
1~ 24 V
Heating / Cooling (4)
Accessories Installation
Supported
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Hydro Kit Installation Manual 29
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