Hayward H250 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 H250 Specifications

General

Model	H250
Category	Swimming Pool Heater
Thermal Efficiency	80%
Maximum Working Pressure	50 psi
BTU Input	250, 000 BTU
Heat Exchanger	Cupro-Nickel
Ignition Type	Direct Spark
BTU Output	200, 000 BTU/hr
Ignition	Direct Spark Ignition

Summary

General Information

Introduction and Heater Overview

General introduction to Hayward pool/spa heaters and their capabilities.

Water Flow and Chemistry Protection

Critical guidelines for water chemistry to prevent heat exchanger damage.

Heater Sizing

Selecting the Correct Heater Size

Guide to choosing the right heater model for pools and spas based on specific factors.

Spa and Hot Tub Sizing Factors

Factors for sizing heaters for spas and hot tubs, including time to heat.

Installation Procedures

Equipment Inspection and Codes Compliance

Procedures for inspecting equipment and ensuring compliance with local and national codes.

Location, Flooring, and Clearances

Requirements for heater placement, flooring, and necessary clearances from surroundings.

Venting and Air Supply Requirements

Guidelines for outdoor/indoor venting, high wind conditions, and air supply for proper combustion.

Gas Supply and Piping

Detailed charts and recommendations for gas pipe sizing based on gas type and distance.

Water Piping and Connections

Instructions for plumbing connections, flow rates, and by-pass valve installation.

Remote Control System Connections

How to connect and set up remote thermostats and switches for heater control.

Installer Check-Out and Start-Up

General Start-Up Procedures

Initial checks and procedures before operating the heater for the first time.

Gas Line Testing and Pressure Adjustment

Steps to test gas lines for leaks and adjust gas pressure for optimal performance.

Two Speed Pump Considerations

Addresses potential issues with two-speed pumps affecting heater operation and required adjustments.

Consumer Operation and Safety

Safety Warnings Before Lighting

Critical safety information and "what to do if you smell gas" instructions.

Heater Lighting and Operation

Step-by-step instructions for lighting the pilot or igniter and operating the heater.

Temperature Controls and Settings

Explanation of how to use and adjust temperature controls on millivolt and electronic models.

Qualified Technician Maintenance

General Maintenance Overview

Recommends annual inspection and outlines key maintenance areas for safe operation.

Control Access and Wiring Procedures

Procedures for accessing controls, handling wiring, and replacing system switches.

Heat Exchanger Service and Replacement

Procedures for inspecting, cleaning, and removing the heat exchanger for maintenance.

Burner and Gas Valve Service

Steps for inspecting burners, cleaning orifices, and replacing gas valves or pilot assemblies.

Component Replacement Procedures

Guidance on replacing high limits, temperature limiters, and pressure switches.

Troubleshooting and Parts

Heater Troubleshooting Charts

Diagnostic guides for common heater problems and their solutions.

Millivolt Parts List and Illustration

Detailed parts listing and exploded views for millivolt heater components.

Electronic Ignition Parts List and Illustration

Detailed parts listing and exploded views for electronic ignition heater components.

Limited Heater Warranty Information

Terms, conditions, exclusions, and procedures for claiming the heater warranty.