Waterpik Technologies pool/spa heater warranty 3H-2. Professional Inspection, 4A-2 Dimensions

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3.Do not use the heater if any part has been under water. Immediately call a qualified professional technician to inspect the heater and replace any part of the control system and any gas control which has been under water.

4.Check for spider webs and other debris in the heater and vent outlet — especially at spring start up.

7.If the heater is equipped with a pressure relief valve, clean any accumulated corrosion and make sure that water runs freely through it.

8.Inspect combustion chamber and burner for corrosion and indication of improper operation.

9.Regularly inspect electrical controls for deterioration. Repair and replace as necessary.

3H-2. Professional Inspection

Inspections performed at least once a year by a qualified professional technician, are required to keep the heater operating safely and efficiently through the years. The following basic safety checks must be performed.

1.Inspect the burners and verify that they are clean.

2.Inspect the fan for damage.

3.Make sure that the pressure switch operates properly by shutting the filter pump off and on a few times. The burner should go off immediately after the pump stops. An ignition sequence should start shortly after the pump is turned back on.

4.Make a visual check of the main burner flame. The flame can be seen in a mirror arrangement held beneath the burners. The flame should be light blue with little or no yellow tips in the flame

5.Inspect the gas and electronic controls, including the following:

a.High temperature limit switch

b.Water pressure switch

c.Exhaust temperature limit switch

d.Automatic gas valve

e.Fusible Link

f.Temperature control

g.Control circuit fuse

6.Perform a temperature rise test in accordance with Section 2J-5.

NOTE: Keep this manual in a safe place for future reference by you and your professional technician when inspecting and servicing the heater.

SECTION 4.

Specifications and Dimensions

4A. General Information

4A-1 Specifications

1.The Laars LX and LT heaters are design certified by International Approval Services as a swimming pool heater under ANSI Standard Z21.56 for use in the United States and Standard CSA-4.7 for use in Canada

2.The Laars LX and LT are certified for use indoors and outdoors in the United States.

3.The Laars LX pool heater is for use with natural gas or liquefied petroleum gas. Ratings apply to either fuel.

4.The Laars LX and LT high altitude heaters are derated at the factory to compensate for atmospheric conditions at elevations higher than 3000 feet above sea level.

5.The Laars LX and LT require a 120VAC/60Hz or 240VAC/60Hz electrical supply for operation.

6.The maximum working pressure of the Laars LX and LT heaters is 75 psig.

4A-2 Dimensions

Model

 

 

No.

250

400

Width

 

 

'A'

28 1/4"

34 1/4"

Input

 

 

BTU

250,000

400,000

Shipping

 

 

Weight

206 lbs

318lbs

 

 

 

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Contents Installation LX and LT Gas-Fired Pool Table of Contents 1C. Warranty 2A-1.Special Precautions2B. Heater Assembly and Preparation LX and LT Pool Heaters2C-3. Flooring Typical Installation 2C. Heater Location 2C-1. Installation Information2C-2. Installation Clearances LX and LT Pool Heaters 2D. Outdoor Installation 2E. Outdoor Shelter Installation Canada2F-2. Special Location Requirement 2F-3. Air For Combustion and Ventilation2F-4b.Vent Pipe Sizing Installation 2G. Gas Supply and Piping 2G-1. General InstructionsHigh altitude H 2,000 to 4,500 feet 610 to 1370 m ` ` ` ` 2G-2. Special Precautions for Propane Gas 2H. Electrical Power 2H-1.General Information2H-3. Auxiliary Time Clock Wiring 2H-2. Bonding2H-4. Remote Operation Model LX Only Remove Jumper from Terminal Block2I. Water Piping 2I-1. Reversal of Heater Water Connections Water Connection as ShippedLX and LT Pool Heaters Typical Water Piping 2I-2. Pool/Spa Piping Systems Piping to Heater2I-3. Connections at Heater 2I-4. Pressure Relief Valve2J. Start-up and Adjustment 2J-1. Normal Operation 2I-5. Automatic Chlorinators Chemical Feeders2J-2. Start-up 2J-4. Adjustment of Water Pressure Switch2J-3. Gas Pressure 2J-5. Water Temperature Rise Adjustment of Pressure Switch3A. Start-Up Procedure Wire or remove the valve handle to prevent tampering3B. Temperature Controls 3B-1. Information Displayed3B-4. Error Status 3B-2. Turning the Heater On or OffLX/LT Heater Service Diagnostic Guide 3C-2. Shutdown 3C. Lighting and Shutdown 3C-1. Lighting the Heater3D. Water Chemistry 3D-1. PoolsFor Your Safety Read Before Operating 3D-2d. Testing 3E. Spa/Hot Tub Safety Rules3D-2a. Spa Water Chemistry 3D-2b. Water Changing3G. Seasonal Care 3G-1. Spring and Fall Operation 3G-2. Winterizing3H. Periodic Inspection 3H-1. Owner Inspection4A-2 Dimensions 4A. General Information 4A-1 Specifications3H-2. Professional Inspection 5A. General Information 5B. Part Numbers5C. Exploded View 5C-1 Overview LX and LT Pool Heaters 5C-2 Detail View Limited Warranty