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Troubleshooting
Service manual
205
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
Mode: Heating
Low pressure
High pressure
Running current
Dirty air filters
Higher than normal
Higher than normal
Higher than normal
Air by-pass between air
inlet/outlet @indoor unit
Higher than normal
Higher than normal
Higher than normal
Non condensables (i.e air)
in refrigerant
Higher than normal
Higher than normal
Higher than normal
Moisture in refrigerant
*1
Lower than normal
Lower than normal
Lower than normal
Impurities (dust, burr, …)
in refrigerant
*2
Lower than normal
Lower than normal
Lower than normal
Refrigerant shortage
Lower than normal
Lower than normal
Lower than normal
Insufficient compression
*3
Higher than normal
Lower than normal
Lower than normal
*1
Water in the refrigerant freezes inside the electronic expansion valve and is
basically the same phenomenon as pump‑down.
*2
Dust, burr in refrigerant clogs refrigerant filters and results with symptoms of
pump‑down operation.
*3
Pressure difference between high and low pressure decreases.
Содержание VRV IV+
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Страница 476: ...ESIE18 15B 2020 05 Copyright 2020 Daikin Verantwortung für Energie und Umwelt ...