Hayward H300 User Manual

POOL AND SPA/HOT TUB HEATERS
H150, H200, H210, H250, H300,
H350 & H400 MODELS
INSTALLATION, OPERATION, & SERVICE MANUAL
FOR YOUR SAFETY
This product must be installed and serviced by authorized personnel, qualied in pool/spa
heater installation. Improper installation and/or operation can create carbon monoxide gas
and ue gases that can cause serious injury, property damage, or death.
1301371801 Rev A 0413
U.S. PATENT NOS. 6,026,804 & 6,321,833
- Do not store or use gasoline or other
ammable vapors or liquids in the
vicinity of this or any other appliance.
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas
supplier, call the re department.
- Installation and service must be
performed by a qualied installer,
service agency, or the gas supplier.
FOR YOUR SAFETY
WARNING: If the information in these
instructions is not followed exactly, a re or
explosion may result causing property
damage, injury, or death.
WHAT TO DO IF YOU SMELL GAS:

Hayward H300 Specifications

General

Model	H300
Heat Exchanger	Cupro Nickel
Ignition	Electronic
Control	Digital
Minimum Flow Rate	20 GPM
Maximum Working Pressure	50 PSI
Type	Natural Gas/Propane
BTU Input	300, 000 BTU
Water Connections	2"

Summary

FOR YOUR SAFETY

WHAT TO DO IF YOU SMELL GAS

Instructions for immediate action if gas odor is detected.

HEATER SIZING

Selecting the correct size heater

Factors and tables for choosing the appropriate heater model.

INSTALLATION

Gas supply and piping

Charts and guidance for selecting correct gas pipe sizes.

Millivolt System

Electronic Ignition System

REMOTE CONTROL CONNECTIONS

INSTALLER CHECK-OUT & START-UP

GAS LINE TESTING

Procedure for leak testing the gas connection before appliance operation.

GAS PRESSURE TEST PROCEDURE

GAS PRESSURE REGULATOR ADJUSTMENT PROCEDURE

CONSUMER OPERATION & MAINTENANCE PROCEDURES

FOR YOUR SAFETY - READ BEFORE OPERATING

Critical safety warnings and precautions for operating the heater.

HEATER OPERATION

LIGHTING INSTRUCTIONS

Step-by-step guide for manually lighting the pilot and burner.

Temperature Controls

TROUBLESHOOTING

General

Troubleshooting Chart

Guide for diagnosing and resolving millivolt heater issues.

Troubleshooting Chart (Electronic)

Guide for diagnosing and resolving electronic ignition heater issues.

Limited heater warranty

Terms, coverage, limitations, and exceptions of the heater warranty.