Panasonic WHUD30BE51, Service Manual

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12.1.3. Setting Water Outlet Temperature For Heat Mode
• The set temperature define the parameters for the outdoor ambient temperature dependent operation of the unit. Where by the
internal water setting temperature is determined automatically depending on the outdoor temperature. The colder outdoor
temperatures will result in warmer water and vice versa. The user has the possibility to shift up or down the target water
temperature by control panel setting.
• Outdoor temperature is updated every 30 minutes when operation ON.
12.1.4. Outdoor Fan Motor Operation
Outdoor fan motor is adjusted according to operation condition. It starts when compressor starts operation and it stops 30 seconds
after compressor stops operation.
12.2. Water Pump
12.2.1. Water Pump Control
1. Once the indoor unit is ON, the water pump will be ON immediately and no error judgement for 9 minutes. However, during
this 9 minutes operation, if there is any abnormality cause at outdoor or malfunction, the compressor should be OFF
immediately and restart delay after 3 minutes.
2. The system will start checking on the water flow level after operation start for 9 minutes. If water flow level is detected low
continuously for 1 minute, the water pump and compressor will be OFF permanently and OFF/ON control panel LED will blink
(H62 error occurs).
3. The water pump will remain ON when compressor OFF due to thermostat OFF.