3 INSTALLATION AND CONNECTION
6
3.4. Swimming Pool Heat Pumps Plumbing
The Swimming Pool Heat Pumps exclusive rated flow titanium heat exchanger requires no
special plumbing arrangements except bypass (please set the flow rate according to the
nameplate). The water pressure drop is less than 10kPa at max. Flow rate. Since there is no
residual heat or flame Temperatures, The unit does not need copper heat sink piping. PVC
pipe can be run straight into the unit.
Location: Connect the unit in the pool pump discharge (return) line downstream of all filter
and pool pumps, and upstream of any chlorinators, ozonators or chemical pumps.
Standard model have slip glue fittings which accept 32mm or 50 mm PVC pipe for connection
to the pool or spa filtration piping. By using a 50 NB to 40NB you can plumb 40NB
Give serious consideration to adding a quick coupler fitting at the unit inlet and outlet to allow
easy draining of unit for winterizing and to provide easier access should servicing be
required.
PVC COUPLER
RECOMMENDED(provided)
CONDENSATION
DRAIN
BARB FTG
Condensation: Since the Heat pump cools down the air about 4 -5°C, water may condense
on the fins of the horseshoe shaped evaporator. If the relative humidity is very high, this
could be as much as several litres an hour. The water will run down the fins into the basepan
and drain out through the barbed plastic condensation drain fitting on the side of the
basepan. This fitting is designed to accept 20mm clear vinyl tubing which can be pushed on
by hand and run to a suitable drain. It is easy to mistake the condensation for a water leak
inside the unit.
NB: A quick way to verify that the water is condensation is to shut off the unit and keep the
pool pump running. If the water stops running out of the basepan, it is condensation. AN
EVEN QUICKER WAY IS to TEST THE DRAIN WATER FOR CHLORINE - if the is no
chlorine present, then it's condensation.
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