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ESIE15-08B
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Part 2. Troubleshooting
4. Component checklist - Water Circuit
19/07/16
Page 79
Daikin Altherma Monobloc CA
4.7. Thermal protector backup heater Q1L
Visual check
1.
If thermal protector backup heater Q1L has tripped, press the red button to reset thermal protector backup heater Q1L.
Functional check
1.
If required, check the thermal protector backup heater Q1L trip temperature by submerging the sensor in water.
2.
Heat the water and measure the temperature of the water. The thermal protector backup heater Q1L must trip at approximately
92°C.
Technical specification
Description
The thermal protector backup heater Q1L is triggered if the temperature
exceeds 92°C. The thermal protector backup heater Q1L will cut power supply
to the backup heater to prevent the water circuit from overheating.
The thermal protector backup heater Q1L is a
safety component that protects the water circuit
against overtemperature.
Location
Wiring diagram
Switch box - BUH kit
Unit
Check procedure
Mechanical check
X15M
K2R
X14M
K2M
Q1L
K1M
K5M
K1R
F1B