Swimming Pool Heat Pumps Plumbing - Inter Water INTER HEAT SMART 26IS Installation Instructions Manual

INTER HEAT SMART
26IS / 36IS
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INSTALLATION AND CONNECTION

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 Temperature, 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, ozone generators, or chemical pumps.
Give serious consideration to adding a quick coupler fitting at the unit inlet and outlet to allow
easy draining of the unit for winterizing and to provide easier access should servicing be
required.
Condensation: Since the Heat pump cools down the air at 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 liters an hour. The water will run down the fins into the base pan and
drain out through the barbed plastic condensation drain fitting on the side of the base pan.
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.
Note: 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 base pan, 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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