Water Connections; Below Pool Installation - Waterco Turbotemp 200HD Installation And Operation Manual

WATER CONNECTIONS

The heater requires proper water flow and
pressure for its operation. See Figure 5 for the
recommended installation. The filter pump
discharges to the filter, the filter discharges to
the heater, and the heater discharges directly to
the pool or spa.
A manual bypass valve should be installed
across the heater when the pump flow exceeds
454 LPM (120 GPM). See "WATER FLOW RATE"
on page 11 - Table 1 for setting of the manual
by-pass valve.
Make sure that the outlet plumbing from the
heater contains no shut-off valves or other flow
restrictions that could prevent flow through the
heater (except for below pool as noted below,
or winterizing valves where needed). To switch flow between the pool and spa, use a diverter
valve. Do not use any valve that can shut off the flow. Do not use a shut-off valve to isolate the
heater unless it is below the level of the pool or spa. Install the chemical feeder downstream
of the heater. Install a chemical resistant one-way check valve between the heater and the
chemical feeder to prevent back-siphoning through the heater when the pump is off.
NOTICE: If the heater is plumbed in backwards, it will cycle continuously. Make sure piping
from filter is not reversed when installing heater.
Connect the heater directly to 5 cm PVC pipe, using the integral unions provided. Heat sinks
are not required. The low thermal mass of the heater will prevent overheating of the piping
connected to the pump even if the heater shuts down unexpectedly.
Occasionally a two-speed pump will not develop enough pressure on the low speed to operate
the heater. In this case, run the pump at high speed only to operate the heater. If this does not
solve the problem, do not try to run the heater. Instead, correct the installation.
Do not operate the heater while an automatic pool cleaner is also operating. If the circulation
pump suction is plugged (for example by leaves), there may not be adequate flow to the heater.
Do not rely on the pressure switch in this case.
Local codes may require the installation of a pressure relief valve (PRV), see page 50 for
"PRESSURE RELIEF INSTRUCTIONS".

BELOW POOL INSTALLATION

If the heater is below water level, the pressure switch must be adjusted. This adjustment must
be done by a qualified service technician.
See following CAUTION before installation.
!
CAUTION
BELOW OR ABOVE POOL INSTALLATION
The water pressure switch is set in the factory at 21 kPa (± 5 kPa). This setting is for a
heater installed at pool level. If the heater is to be installed more than 0.3 m above or
below, the water pressure switch must be adjusted by a qualified service technician.
See page 36, Figure 28.
Figure 5.