Hayward H400IDL2 User Manual

HAYWARD
®
Installation, Operation & Service Procedures
Pool and Spa/Hot Tub Heaters
Models H250IDL2, H350IDL2 & H400IDL2
PATENT NO. 6026804 1303026201 1105
FOR YOUR SAFETY
– Do not store or use gasoline or other flam
-
mable vapors or liquids in the vicinity of this
or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• 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 suppli-
er’s instructions.
• If you cannot reach your gas supplier, call
the fire department.
– Installation and service must be performed
by a qualified installer, service agency or the
gas supplier.
WARNING: If the information in these
instructions is not followed exactly, a fire or
explosion may result causing property dam-
age, personal injury, or death.
FOR
YOUR
SAFETY
This product must be installed and serviced by authorized personnel, qualified in
pool/spa heater installation. Improper installation and/or operation can create carbon
monoxide gas and flue gases that can cause serious injury
, property damage, or death.
For indoor installations, as an additional measure of safety, Hayward strongly recom-
mends installation of suitable Carbon Monoxide (CO) detectors in the vicinity of this appli-
ance and in any adjacent occupied spaces. Improper installation and/or operation will
void the warranty
.

Hayward H400IDL2 Specifications

General

Brand	Hayward
Model	H400IDL2
Category	Swimming Pool Heater
Language	English

Summary

SECTION I. GENERAL INFORMATION

Introduction

Overview of the manual's purpose and scope for Hayward heaters.

Limited warranty summary

Outlines the key terms and duration of the limited warranty for the heater.

SECTION II. HEATER SIZING

Selecting the correct size heater

Factors influencing heater sizing for pools and spas.

SECTION III. INSTALLATION

Equipment inspection

Instructions for inspecting the heater equipment upon receipt for any damage.

Codes and Location Requirements

Requirements for installing the heater according to codes and selecting a location.

Venting and Air Supply

Guidelines for proper venting and air supply for safe heater operation.

Gas and Water Piping

Procedures for connecting gas supply lines and water piping to the heater.

Electrical Connections

Instructions for making field wiring connections and converting voltage.

SECTION IV. INSTALLER CHECK-OUT AND START-UP

General Check-out Procedures

General procedures before operating the heater after installation.

Gas Pressure Testing and Adjustment

Procedures for leak testing, pressure testing, and regulator adjustment.

SECTION V. CONSUMER OPERATION & MAINTENANCE PROCEDURES

Pool Water Chemistry

Importance of water chemistry for heater performance and longevity.

Heater Operation and Safety

Safe operating instructions and temperature control usage for consumers.

Safety Before Lighting

Crucial safety warnings and instructions to follow before lighting the heater.

SECTION VI. QUALIFIED TECHNICIAN - MAINTENANCE/SERVICING

General Maintenance

Recommended inspection procedures for annual heater maintenance.

Burner Inspection and Cleaning

How to inspect and clean the main burners for optimal performance.

Gas Valve Replacement

Procedure for replacing a defective gas valve assembly.

SECTION VII. TROUBLESHOOTING

General Troubleshooting Notes

General notes and warnings for troubleshooting the heater system.

"LO" Error Code

Understanding and resolving the "LO" error code related to limit switches.

Ignition Failure Error

Diagnosing and resolving issues related to ignition failure (IF code).

Parts List and Illustration

Parts List

A comprehensive list of all replaceable parts for the heater.

Parts Illustration

Visual diagram identifying the location of each part number.