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Heat pump starts then turns off soon after
This could be caused by:
a.
Insufficient water flow rate through heat exchanger. Check pipe sizing
per chart, check obstructions, check lines and pump are bled, check
pump is operating, check temperature rise across inlet and outlet.
Note: Tanks and heat pumps are to be manifolded in Equa-Flow. It is
important that the branches to each storage tank ONLY contain a gate or
ball valve and union. Fitting of loose jumper valves, non-return valves or
pressure limiting valves in the branches or primary flow and return lines
between the heat pump and tanks WILL affect performance of the heat
pump.
b.
Refrigerant charge too high? Refer to Alarm.
c.
Refrigerant charge too low? Refer to Alarm.
Turn heat pump off then on again at isolating switch to reset system.
•
Heat pump compressor excessively noisy
Check for correct phase rotation (refer to page
).
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