Pentair AUTOMATIC BY-PASS VALVE KIT User Manual

AUTOMATIC BY-PASS VALVE KIT (P/N 462048)

FOR MASTERTEMP® AND MAX-E-THERM® POOL AND SPA HEATERS

INSTALLATION INSTRUCTIONS

FAILURE TO FOLLOW ALL INSTRUCTIONS AND WARNINGS CAN RESULT IN
SERIOUS BODILY INJURY OR DEATH. THIS PRODUCT SHOULD BE

INSTALLED AND SERVICED ONLY BY A QUALIFIED POOL SERVICE
PROFESSIONAL. INSTALLERS, POOL OPERATORS AND OWNERS MUST
READ THESE WARNINGS AND ALL INSTRUCTIONS IN THE HEATER
INSTALLATION AND USER’S GUIDE BEFORE USING THIS PRODUCT.
THESE INSTRUCTIONS MUST BE LEFT WITH THE POOL OWNER.

Pentair Water Pool and Spa heater related products are available at:
https://www.pentair.com/en/products/pool-spa-equipment/pool-heaters.html
Call [phone] for additional free copies of these instructions.

IMPORTANT SAFETY INSTRUCTIONS

READ AND FOLLOW ALL INSTRUCTIONS - SAVE THESE INSTRUCTIONS

Automatic By-pass Valve Overview

In conjunction with a Pentair IntelliFlo VF pump the automatic by-pass valve functionality of the latest MasterTemp
heater will improve the head loss through the pool system, reduction of pump power consumption and the
longevity of the heater by automatically taking the heater mostly out of the flow loop when not in use.

The following instructions describe how to configure your pool/spa hydraulics for a 3-way or 2-way automatic
by-pass valve.

Related manuals:

IntelliValve Valve Actuator Manuals (P/N 522301)

Contents

• 2” 3-Way Valve (Pentair P/N 263026)

• IntelliValve Actuator (Pentair P/N 521485)

• 2” Check Valve (Pentair P/N 263042)

P/N 462050.A 9/2020

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AUTOMATIC BY-PASS VALVE SETUP INSTRUCTIONS

When installing this kit, basic safety precautions should always be followed. Read and follow all instructions.

Required installation tools:

• #2 Phillips screwdriver

• Hacksaw (for cutting plumbing)

• 1/4” Nut driver

CAUTION! Before starting: Always disconnect AC power to the pool pump.

Automatic By-pass Valve Setup

Plumbing

1. Cut the heater inlet plumbing and install the 2” 3-Way valve (Pentair P/N 263026) as shown in Figure 1 & 2.

Cold Water In

Check

Valve

Hot Water Out To Pool

Figure 1. Valve positioned left side of heater

2. And the 2” check valve (Pentair P/N 263042).

3. Unscrew and remove the diverter valve knob and handle.

Figure 3. Diverter Handle/Knob

IntelliValve

IntelliValve

Cold Water In

Check
Valve

Hot Water Out To Pool

Figure 2. Valve positioned left side of heater

Valve Knob

Valve Handle

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AUTOMATIC BY-PASS VALVE SETUP INSTRUCTIONS

4. Remove the four (4) screws from the valve assembly top cover. See Figures 4 and 5 depending on where your
heater is located relative to your valve.

Figure 4. Heater to Left of Valve

Figure 5. Heater to Right of Valve

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