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Earth Save Products-ASHP
PASRW030B-D-PS
V 1.8
PASRW040B-D-PS
PASRW050B-D-PS
V.
The unit is fitted with a water flow switch that will pause the unit
operation if water flow is not continuous (this includes where there is air in
the system). The flow switch is there to protect the unit and the setting
should not be altered. You should check that the switch is working
properly before running the unit for any sustained period. If the flow of
water is insufficient, an error code of “Flow Level” will be displayed on the
controller.
VI.
The final connection to the heat pump flow and return must be made
with suitable flexible pipes to prevent vibration in to the system pipework.
Please ensure that two wrenches are employed to take up the torque created
in tightening the fittings to avoid damage to both fittings and heat pump.
VII.
These flexible hoses are available from ESP as part of an Installation
Pack or individually.
VIII.
Make sure that you
fit automatic air vents
at high points in the
system.
The unit will shut down if air is in the system because the water
flow switch will recognise air in the system as no water flow and a system
alarm/protection code will appear on the unit controller. The Error Message
“Flow Level” will appear on the controller display.
IX.
You must fit a pressure gauge and suitable blow off valve at the unit
inlet/outlet where it can be seen from the unit.
X.
The unit is supplied with a bung below the flow/return pipes. This
bung must be removed and replaced with a drain-off- cock (DOC). There
must also be a DOC at any lower point in the system, to allow for effective
drain-down of the system as and when required. Please note that, if the
system is to be left idle for a long period in winter, the system should be
drained down. You should fit full flow lever valves on the flow and return to