Plumbing Connections; Valves; Manual By-Pass; Water Connections - Pentair MASTERTEMP 125 Installation And User Manual

Section 3. Installation Instructions
12

PLUMBING CONNECTIONS

®
CAUTION
Before operating the heater on a new installation, turn on
the circulation pump and bleed all the air from the filter
using the air relief valve on top of the filter. Water should
flow freely through the heater. Do not operate the heater
unless water in the pool/spa is at the proper level. If a
manual by-pass is installed, temporarily close it to insure
that all air is purged from the heater.

WATER CONNECTIONS

NOTICE:
MASTERTEMP ® 125 Pool and Spa Heater Installation and User's Guide
HEATER
FROM
FILTER
MANUAL
BY-PASS
Main
Drain
Pool
From Pool
3-Way
Valve
Figure 3.
TO
PUMP
POOL
FILTER
GATE
VALVE
FROM
POOL
3-Way
Chlorinator
Valve
Check Valve
Heater
Filter
Spa
Pump
3-Way
Valve
Figure 4.
Rev. B 8/14