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Jandy pool/spa heater User Manual

Jandy pool/spa heater
32 pages
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FOR YOUR SAFETY - This product must be installed and serviced by authorized person-
nel, qualified in pool/spa heater installation. Improper installation and/or operation can
create carbon monoxide gas and flue gases which can cause serious injury, property
damage, or death. Improper installation and/or operation will void the warranty.
H0214000B
Installation and Operating Data
WARNING
If these instructions are not followed exactly, a fire or explosion may result,
causing property damage, personal injury, or death.
Do not store or use gasoline or other flammable vapors and 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
supplier’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.
Installation and
Operation Manual
LX
and LT
Gas-Fired Pool
and Spa Heater
Model
LX250
Shown

Table of Contents

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Jandy pool/spa heater Specifications

General IconGeneral
BrandJandy
Modelpool/spa heater
CategorySwimming Pool Heater
LanguageEnglish

Summary

General Information

Introduction

Provides an overview of the LX and LT pool/spa heaters and manual content.

Description

Details the features and certifications of Laars LX and LT heaters.

Warranty

Outlines the limited factory warranty and registration process.

Installation Instructions

General Requirements

Lists essential requirements for safe and satisfactory gas-fired pool heater operation.

Special Precautions

Highlights specific installation rules for LP gas and safety warnings.

Heater Assembly and Preparation

Details field preparation and assembly for heater installation.

Heater Location

Discusses considerations for indoor/outdoor installation and water leakage.

Installation Clearances

Specifies minimum clearances from combustible surfaces for safe installation.

Flooring - Typical Installation

Provides guidelines for installing the heater on various flooring types.

Outdoor Installation

Covers placement guidelines for outdoor heater installations, including safety clearances.

Outdoor Shelter Installation (Canada)

Details requirements for installing heaters in outdoor shelters in Canada.

Indoor Installation

Explains how to convert the heater for indoor installation with vent collar.

Special Location Requirement

Specifies minimum platform height for garage installations due to combustible fumes.

Air For Combustion and Ventilation

Details requirements for providing adequate combustion and ventilation air.

Exhaust Venting

Explains vent pipe sizing based on heater model and codes for safe venting.

Vent Pipe Sizing and Installation

Covers vent pipe sizing, installation, and code compliance for Category I appliances.

Gas Supply and Piping

Provides general guidelines for gas supply and piping installation.

General Instructions

Provides general guidelines for gas supply and piping installation.

Special Precautions for Propane Gas

Details safety precautions for installing heaters using LP gas.

Electrical Power

Explains wiring connections, grounding, and conversion between 120V and 240V.

General Information

Explains wiring connections, grounding, and conversion between 120V and 240V.

Bonding

Covers requirements for bonding metallic components of the pool structure to the heater.

Auxiliary Time Clock Wiring

Provides instructions for wiring a time clock auxiliary switch for pump operation.

Remote Operation (Model LX Only)

Details how to wire the Laars LX heater for remote operation with RS Control Systems.

Water Piping

Illustrates typical piping for pool/spa combinations and addresses back-siphoning.

Reversal of Heater Water Connections

Explains the procedure for reversing water connections for left-side access.

Pool/Spa Piping Systems

Illustrates typical piping for pool/spa combinations and addresses back-siphoning.

Connections at Heater

Describes how to connect PVC or CPVC pipe to the heater's water header.

Pressure Relief Valve

Details the installation procedure for a mandatory pressure relief valve.

Automatic Chlorinators (Chemical Feeders)

Warns about chemical damage and provides installation guidelines for chlorinators.

Start-Up and Adjustment

Explains the normal operation sequence and diagnostic capabilities of the heater.

Normal Operation

Explains the normal operation sequence and diagnostic capabilities of the heater.

Start-up

Guides through the initial start-up procedure and checks for proper water flow.

Gas Pressure

Details how to check and adjust gas supply and manifold pressures for correct operation.

Adjustment of Water Pressure Switch

Explains how to adjust the pressure switch for proper heater operation with variable pump speeds.

Water Temperature Rise

Describes how to measure and adjust water temperature rise for optimal performance.

Operating Instructions

Start-Up Procedure

Details the steps for initial start-up, including cleaning the water and setting controls.

Temperature Controls

Explains the information displayed on the LX and LT control panels and indicators.

Information Displayed

Explains the information displayed on the LX and LT control panels and indicators.

Turning the Heater On or Off

Provides instructions for turning the heater on, off, and using RS control systems.

Setting Pool and Spa Temps, Changing from Fahrenheit to Celsius

Guides on setting temperatures, switching units, and using the temperature lock.

Error Status

Describes how the heater displays error codes and potential causes.

Lighting and Shutdown

Provides step-by-step instructions for safely lighting the heater.

Lighting the Heater

Provides step-by-step instructions for safely lighting the heater.

Shutdown

Details the procedure for completely shutting down the heater.

Water Chemistry

Discusses mineral content and pH guidelines for swimming pool water.

Pools

Discusses mineral content and pH guidelines for swimming pool water.

Spas

Covers critical chemical balance for spa water and its impact on the heater.

Spa Water Chemistry

Explains the importance of regular water changes and chemical monitoring in spas.

Water Changing

Recommends frequency for changing spa water and stabilizing chemistry.

Corrosion

Lists factors that increase corrosive action of pool/spa water on the heater.

Testing

Recommends test kits for pool/spa owners and professional testing.

Spa/Hot Tub Safety Rules

Presents safety rules for hot tub use, including temperature limits and health precautions.

Swimming Pool Energy Savings Tips

Offers tips to conserve fuel and reduce operating costs for pool heaters.

Seasonal Care

Provides guidance for pool operation during transitional seasons with thermostat settings.

Spring and Fall Operation

Provides guidance for pool operation during transitional seasons with thermostat settings.

Winterizing

Details steps for protecting the heater during winter from freezing temperatures.

Periodic Inspection

Outlines basic guidelines for owners to inspect the heater for debris and safety.

Owner Inspection

Outlines basic guidelines for owners to inspect the heater for debris and safety.

Professional Inspection

Lists safety checks required for annual professional inspection and servicing.

Specifications and Dimensions

General Information

Provides general information on heater design certifications and fuel types.

Specifications

Lists key specifications including certifications, power requirements, and working pressure.

Dimensions

Presents physical dimensions, input ratings, and shipping weights for models.

Replacement Parts

General Information

Explains how to order or purchase replacement parts from dealers or Water Pik Technologies.

Part Numbers

Lists part numbers organized by component category for easy ordering.

Exploded View Of Heater

Provides a general exploded view of the heater components for identification.

Overview Exploded View

Provides a general exploded view of the heater components for identification.

Detail Exploded View

Offers a detailed exploded view of specific heater components for reference.

LIMITED WARRANTY

Warranty Claims

Provides instructions for submitting warranty claims, including required information.

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