Carrier Aquazone 50PSW025-420 Installation Instructions Manual page 14

Water-to-water source heat pump with puron refrigerant (r-410a)
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HIGH PRESSURE FAULT
1
2
LOW PRESSURE FAULT
3
CONDENSER FREEZE CONDITION
4
CONDENSATE OVERFLOW FAULT
5
BROWN OUT FAULT
6
LOAD FREEZE CONDITION
Fig. 9 — Unit Sizes 025-071, 1-Phase, W2W Open Control Package
14

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