(307IO) HEAT PUMP ENGLISH 7.5” X 10.3” PANTONE 295U 12/15/2016
English
307
IO
SAVE THESE INSTRUCTIONS
English
Page 19
Use the following procedure to adjust the bypass:
• Fully open all three valves.
• Slowly close valve 1 until the water pressure is increased and until the water ow switch is on.
• Close valve 3 approximately half-way to adjust the gas pressure in the cooling system.
• If the display shows “ON” or error code EE3, close step by step the valve 2, to increase water
ow and stop when the code disappear.
Optimal operation of the heat pump occurs when the cooling gas pressure is 22 ± 2 bar.
This pressure can be read on the pressure gauge next to the control heat pump panel. Under
these conditions the water ow through the unit is also optimal.
NOTE:
Operation without a bypass or with improper bypass adjustment may result in sub-optimal
heat pump operation and possibly damage to the heat pump, which renders the warranty null and
void.
SERVICE BY QUALIFIED TECHNICIANS (continued)
To Pool
From Pool
Heat Pump
In
Out
Valve 1
Valve 3 Valve 2
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