Automatic By-Pass; Below Pool Installation - Pentair MASTERTEMP 200HD Installation And User Manual

AUTOMATIC BY-PASS

Figure 5 shows a plumbing diagram for an automatic BY-PASS (IntelliValve). This in conjunction with an IntelliFlo
VSF pump can provide added longevity of the heater and increased cost savings of operation. A 3-Port valve with an
IntelliValve actuator is installed at the heater inlet. A check valve is installed at the heater oulet so that water cannot
flow back into the heater. See instructions for Automatic Bypass valve kit (P/N 462048) for setting the open and closed
position of the IntelliValve.
Figure 5.

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.
The water pressure switch is set in the factory at 20.6 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 42.
If the heater is installed more than 1.5 m above the pool or more than 1.2 m below the pool level, you will be beyond
the limits of the pressure switch and a flow switch must be installed. Locate and install the flow switch externally
on the outlet piping from the heater, as close as possible to the heater. Connect the flow switch wires in place of the
water pressure switch wires.
P/N 474131 Rev. M 8/2020
Check
Valve
CAUTION
BELOW OR ABOVE POOL INSTALLATION
FLOW SWITCH
Section 1.
IntelliValve
Cold Water In
Hot Water Out To Pool
Installation
MasterTemp Pool and Spa Heater
13