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OPERATION OF CONTROLLER
When the heat pump turns on, the control system initiates and will check the unit's operating parameters. The
controller will check on all sensors and pressure switches. If conditions are suitable (i.e all reading within the
reasonable range) and there is enough energy available in the surrounding air, the fan and compressor will turn
on. If not enough energy is detected in ambient air then the controller calls for the booster heating element to run.
There will be a delay from the time the heat pump is switched on before the fan and compressor begin operating.
The unit is self regulating so there are no internal adjustments to be made during commissioning. When the unit is
operated for the first time, it runs through an initial heat up cycle, allow time for the initial heat up cycle. Depending
on the ambient conditions this can take several hours.
Once its first heat up cycle is complete, empty approximately 60 litres of hot water from the tank through the PTR
valve outlet then allow the water in the tank to re-heat. Once the re-heat cycle is completed measure the water
temperature at the PTR outlet again. The temperature will be approximately 60º C.
If for any reason the unit does not start, the water is cold and the controller unit is not displaying any LED lights, an
electrician should test that power is available to the heat pump.
CONTROLLER LAYOUT AND KEYS
All major functions are controlled by the Control Panel situated on the front of the unit.
The following table describes the primary function of each key on the controller
Key
Icon
On/Off
Clock
Mode
Rinnai
Primary Functions
1.
On/off key (hold for 1 second)
2.
Return key
3.
Escape key
4.
Unlock key (hold for 5 seconds)
1.
Setting the clock, press the key will enter into clock setting
interface, and then press one time to switch the hour and minute
area
2.
Setting the timer (press the key and hold for 3s)
3.
During timer setting, press the key and hold for 3s, cancel the
current timer setting
1.
Press the key and hold for 5s, enter into parameter setting
interface
2.
Press the key to change operation mode
3.
In parameter query interface, press the key enter into value
setting or save the setting
21
OPERATION
EHPS Heat Pump OIM - Issue 1
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