Waterpik Technologies pool/spa heater LX and LT Pool Heaters, 1A. Introduction, 1B. Description

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LX and LT Pool Heaters

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SECTION 1.

General Information

1A. Introduction

This manual contains information for the proper installation and operation of the LX and LT pool/spa heaters. Certain sections are specific to United States or Canadian installations, and are labeled United States or Canada. Procedures in this manual must be followed exactly. To obtain additional copies of this manual contact Waterpik Technologies. For address information see back cover.

1B. Description

The Laars LX and LT have no standing pilot burner. They exceed the requirements of energy conservation regulations such as those in California, Hawaii, New York, Oregon and other states which require that a pool heater not have a continuous ignition source.

The heaters are designed to operate in conventional swimming pool and spa equipment arrangements. They require 120V or 240V, 60 Hz electrical power.

The Laars LX and LT are certified by International Approval Services, Inc. to comply with latest editions of applicable U.S./Canadian combined standard for gas-fired pool heaters. In the United States, the applicable standard is ANSI Standard Z21.56 for gas-fired pool heaters. In Canada, it is Standard CSA 4.7. As such, the heater carries both the AGA and CGA logos.

The heaters have been designed specifically to heat fresh water swimming pools and spas, and with proper installation and care, they will provide years of reliable service. Do not use the heaters to maintain pool or spa water temperature below 70°F. Do not use them as heating boilers or general service water heaters or to heat salt water. For special applications, consult your Waterpik Technologies dealer.

DANGER

Improper installation or servicing can cause property damage, injury or death due to fire, asphyxiation or carbon monoxide poisoning.

1C. Warranty

The LX and LT are sold with a limited factory warranty. A copy of the warranty is included in a plastic bag inside the heater and on the back cover of this manual. The home owner should fill out the warranty registration card included in the plastic bag and return it to Waterpik Technologies. The warranty does not cover damage caused by improper installation, operation, or field modification; or damage to the heat exchanger caused by corrosive water. See Section 3D for guidelines on pool water chemistry.

SECTION 2.

Installation Instructions

2A. General Requirements

All gas-fired products require correct installation to assure safe and satisfactory operation. The requirements for pool heaters include the following:

1.Appropriate site location and clearances.

2.Sufficient supply of clean air for combustion and ventilation.

3.Proper venting of products of combustion.

4.Properly sized gas pipe.

5.Properly sized gas meter.

6.Adequate water flow.

In the United States, installation must be in accordance with local codes and the most recent edition of the National Fuel Gas Code, ANSI Z223.1. The Code can be obtained from:

National Fire Protection Association

1 Batterymarch Park

Quincy, MA 02269

In Canada, install the heater in accordance with local codes and the most recent edition of the Installation Codes for Gas Burning Appliances, CAN 1-B149.1 & .2. The Canadian Gas Codes are available from:

Canadian Gas Association

55 Scarsdale Road

Don Mills, Ontario

M3B 2R3

2A-1.Special Precautions

Liquefied petroleum (LP) gas is heavier than air. Therefore, a pool heater using LP gas is subject to special installation rules. Consult local codes and fire protection authorities about specific installation restrictions.

Fuel gas and its combustion products are known to cause cancer or harm the reproductive process. Follow these installation instructions and applicable codes exactly to avoid this hazard.

2B. Heater Assembly and Preparation

The LX or LT can be installed in a variety of ways, some of them requiring preparation or assembly in the field. Water connections are provided on the right side of the heater but can be changed to the left side by reversal of the heat exchanger.

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Contents Installation LX and LT Gas-Fired Pool Table of Contents LX and LT Pool Heaters 1C. Warranty2A-1.Special Precautions 2B. Heater Assembly and Preparation2C. Heater Location 2C-1. Installation Information 2C-3. Flooring Typical Installation2C-2. Installation Clearances 2E. Outdoor Shelter Installation Canada LX and LT Pool Heaters 2D. Outdoor Installation2F-3. Air For Combustion and Ventilation 2F-2. Special Location Requirement2G. Gas Supply and Piping 2G-1. General Instructions 2F-4b.Vent Pipe Sizing InstallationHigh altitude H 2,000 to 4,500 feet 610 to 1370 m ` ` ` ` 2H-2. Bonding 2G-2. Special Precautions for Propane Gas2H. Electrical Power 2H-1.General Information 2H-3. Auxiliary Time Clock WiringRemove Jumper from Terminal Block 2H-4. Remote Operation Model LX OnlyWater Connection as Shipped 2I. Water Piping 2I-1. Reversal of Heater Water ConnectionsLX and LT Pool Heaters Typical Water Piping Piping to Heater 2I-2. Pool/Spa Piping Systems2I-4. Pressure Relief Valve 2I-3. Connections at Heater2I-5. Automatic Chlorinators Chemical Feeders 2J. Start-up and Adjustment 2J-1. Normal Operation2J-4. Adjustment of Water Pressure Switch 2J-2. Start-up2J-3. Gas Pressure Adjustment of Pressure Switch 2J-5. Water Temperature RiseWire or remove the valve handle to prevent tampering 3A. Start-Up Procedure3B-1. Information Displayed 3B. Temperature Controls3B-2. Turning the Heater On or Off 3B-4. Error StatusLX/LT Heater Service Diagnostic Guide 3D-1. Pools 3C-2. Shutdown3C. Lighting and Shutdown 3C-1. Lighting the Heater 3D. Water ChemistryFor Your Safety Read Before Operating 3D-2b. Water Changing 3D-2d. Testing3E. Spa/Hot Tub Safety Rules 3D-2a. Spa Water Chemistry3H-1. Owner Inspection 3G. Seasonal Care 3G-1. Spring and Fall Operation3G-2. Winterizing 3H. Periodic Inspection4A. General Information 4A-1 Specifications 4A-2 Dimensions3H-2. Professional Inspection 5B. Part Numbers 5A. General Information5C. Exploded View 5C-1 Overview LX and LT Pool Heaters 5C-2 Detail View Limited Warranty