Relationship Between The Condition Of The Air-To-Water Heatpump Indoor And Outdoor Units And Pressure And Electric Current - Panasonic WH-ADC0309H3E Service Manual

Air-to-water hydromodule + tank
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17.2 Relationship between the Condition of the Air-to-Water Heatpump
Indoor and Outdoor Units and Pressure and Electric Current
Condition of the Air-to-
Water Heatpump
indoor and outdoor units
Water leakage or
insufficient water flow
rate in the system
Excessive amount of
refrigerant
Inefficient compression
Insufficient refrigerant
(gas leakage)
Outdoor heat exchange
deficiency
Clogged expansion valve
or Strainer
Carry out the measurements of pressure, electric current, and temperature fifteen minutes after an operation is
started.
Heating Mode
Low Pressure
High Pressure
Electric current
Low Pressure
during operation
145
Cooling Mode
Electric current
High Pressure
during operation

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