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Rinnai 22 EHPA_A Heat Pump OIM
CONTROLLER LED FLASHING CODES
Ensure the controller unit is not displaying the ERR indicator once unit has been switched on.
Display /
Control Panel
Indicators
Indicator Explanation
MAX 60°C using a combination of the compression system and the heating element.
MID 57°C using compression system.
ECO 55°C using compression system.
If the Display & Control Panel (12) is displaying the red ashing ERR indicator (14) then refer to the table below
to nd the fault:
Red ERR
Indicator
Flash Code Explanation
1 ash Tank Sensor- FAILURE
2 ashes Ambient Sensor - FAILURE
3 ashes Evaporator Sensor - FAILURE
4 ashes Compressor Discharge Sensor- FAILURE
5 ashes Compressor Discharge Sensor ≥ 110° C
7 ashes High Pressure Switch Open
8 ashes Under Voltage <207 V AC
9 ashes Over Voltage > 265 V AC
The dip switches can be used to go to the test mode for the functionality of various components. In test mode the
output relays L1. L2, L3, L4 will be controlled manually by dip switches irrespective of input reading.
DIP Switch
Congurations
DIP Switch(s) Switch Position(s) Explanation
No. 8 OFF Normal Operation Mode (Factory set)
No. 7 OFF Normal Operation Mode (Default)
No. 7 ON Test Mode -
No. 7 & No. 1 ON Compressor (L1) ON
No. 7 & No. 2 ON Fan/Pump (L2) ON
No. 7 & No. 3 ON Element (L3) ON
No. 7 & No. 4 ON Defrost Solenoids (L4) ON
Any changes to the normal operating settings may adversely affect the performance of the heat pump.
12
12
14
13
13
12
13
INSTALLATION
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