Installation Instructions - Waterco HEAT PUMP SWIMMING POOL HEATERS Owner's Manual

INSTALLATION INSTRUCTIONS

Location
The location of the pool heater is very important in keeping installation costs to a minimum, while providing for
maximum efficiency of operation as well as allowing adequate service and maintenance access.
The unit is designed for outdoor installation and should not be installed in a totally enclosed area such as a shed,
garage, etc. unless ventilation is provided to ensure adequate air exchange for proper operation. Re-circulation of
cold discharged air back into the evaporator coil will greatly reduce unit heating capacity and efficiency.
The unit should be located as close as possible (3.0m is ideal) to the existing pool pump and filter to minimize
water piping. The use of 90 degree bends and short radius elbows in the water piping should be kept to a
minimum.
Mount the unit on a sturdy base, preferably a concrete slab or blocks. The base should be completely isolated
from the building foundation or wall to prevent the possibility of sound or vibration transmission into the building.
The size of the base should not be less than the base of the pool heater.
Contact your dealer to learn about our patio tile which ensures stability and reduces vibration.
IMPORTANT
Waterco models discharges air either from the top of the unit. Air is pulled through the evaporator coil and
discharge through the grille. Clearance should be allowed in front and around the unit for unrestricted air
discharge and service access. See Figure 1.
Water Piping
The piping sequence: pool pump / filter / heater / pool (inline chlorinators, if used, must be downstream (after
the heater) to minimise harm to the pool equipment). See "Caring for your Pool Heater" section for more details
on chlorination and chemical feeding. Rigid PVC piping is recommended, all joints should be glued with PVC
glue. If rigid PVC is not available, you can use soft or flexible piping with stainless steel clamps. When the piping
installation is complete, operate the pool pump and check the system for leaks. Then check the filter pressure
gauge to see that excessive head pressure is not indicated.
NOTE: The installation of a bypass which isolate the heater from the water circuit is highly recommended. Make sure the
heat exchanger is not deprived of water circulation for several days, high chlorine gas could cause excessive
corrosion. If the disconnect switch is turned off, be sure the pool water is allowed to circulate through the unit, or
is drained out of it.
Plumbing Diagram
VITAL
!
IMPORTANT
When connecting the heater,
tighten the connections by hand
only. Too much pressure may
damage the water in or water
out of the heat exchanger.
1. Any kind of Automatic Chlorination System MUST be installed after (downstream) of the Heat Pump.
2. Filter MUST be connected before (upstream) the Heat Pump.
3. A bypass should be installed on all systems for water flow adjustment and ease of service.
Piping
The piping and plumbing between the heat pump and other equipment should be minimised. During colder
months, significant heat loss will occur through the piping.
I pg 07
Heat Pump Swimming Pool Heaters