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Lochinvar
GAS HEATER FOR COMMERICAL POOL APPLICATIONS service manual Control Box Connections
Models:
GAS HEATER FOR COMMERICAL POOL APPLICATIONS
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Install
3-WayValve Cover Connection Diagram
Warranty
Maintenance
Connecting To Gas Supply
TABLE-N Ignition Control Diagnostic Codes
Flue Gas Passageways Cleaning Procedures
Pump Purge Delay Option
Adjusting Differential Air Pressure
Advanced settings
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Installation and Service Manual
CONTROL BOX CONNECTIONS
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Contents
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INSTALLATION AND SERVICE MANUAL
WHAT TO DO IF YOU SMELL GAS
•Do not try to light any appliance
Commercial Pool Heaters
Table of Contents
Table of Contents
Safety Information
SAFETY INFORMATION
Installation and Service Manual
Warranty
GENERAL PRODUCT INFORMATION
•do not try to light any appliance
Commercial Pool Heaters
Installation and Service Manual
PRODUCT IDENTIFICATION
Figure 1A - Standard Horizontal Piping Loop
Figure 1B - Optional Vertical Piping Loop
Clearances from Combustible Construction
INSTALLATION
Base for Combustible Floors
Commercial Pool Heaters
COMBUSTION AND VENTILATION AIR
FREEZE PROTECTION
TABLE - A COMBUSTIBLE FLOOR KITS
Input Btu/hr
Combustion Air Options
INSTALLATION Continued
One Opening
Two Openings
Installation and Service Manual
Exhaust Fans
2. Outside Combustion Air, Using Ducts
3. Outside Combustion Air, Using Direct Venting
General Information
VENTING
Venting Support
Vertical Vent Termination Clearances and Location
Sidewall Vent Termination Clearances and Location
Installation and Service Manual
TABLE - B Flue and Air Inlet Pipe Sizes
Length of Air Inlet Pipe
Combustion Air Inlet Piping
Sidewall Air Inlet
INSTALLATION Continued
Combined Air Inlet Points
Vertical Rooftop Air Inlet
Clearances
Installation and Service Manual
1.Conventional Negative Draft Venting
Vent System Options
Negative Draft
INSTALLATION Continued
Installation and Service Manual
Flue Outlet Piping
Masonry Chimney Installations
Common Venting Systems
Draft Venting, page
2. Vertical DirectAire Venting
INSTALLATION Continued
Commercial Pool Heaters
3. Sidewall Venting
Vent Kits
Venting of Flue Products
Installation and Service Manual
Sidewall Fan
Drain Tee Installation
Sidewall Venting Termination
Sidewall Venting Without Fan
Masonry Chimney Installation
Installation and Service Manual
Figure 22B – Sidewall Venting
Clearances and Location page
4. Horizontal DirectAire Venting
INSTALLATION Continued
Commercial Pool Heaters
Installation and Service Manual
5. Direct Venting
Drain Tee Installation
Flue Outlet Piping
Masonry Chimney Installation
INSTALLATION Continued
Commercial Pool Heaters
Vertical DV Venting Termination
Figure 24 – Attaching DV Box Adapter to Unit
Installation and Service Manual
INSTALLATION Continued
Commercial Pool Heaters
Figure 26 – Vertical Rooftop Air Inlet
Multiple Sidewall Direct Vent Installations
6. Outdoor Installation Venting
Vertical Combustion Air Inlet Clearances
Horizontal Combustion Air Inlet Clearances
CONNECTING TO GAS SUPPLY
Combustion Air Fan Adjustment for startup
Gas Pressure Test
INSTALLATION Continued
Gas Piping
Connecting Gas Piping to the Pool Heater
Gas Train and Controls
Installation and Service Manual
Venting of Combination Gas Valves
Combination Gas Valves
Checking Gas Supply Pressure
TABLE-J
Installation and Service Manual
TABLE - K
WARNING: After completing any testing on
Combination Gas Valve
Maintenance, page 49 for Combustion Air Fan
Gas Manifold Pressure Adjustment
Adjustment
Follow the procedure to adjust the
Auxiliary Mixed Water Limit Control
POOL HEATER PIPING INSTALLATION
Pumped Automatic Bypass
Installation and Service Manual
Figure 33 – 3-WayValve Cover Connection Diagram
INSTALLATION Continued
Commercial Pool Heaters
Figure 32 – 3-WayValve Cover
Figure 34 - Heater is Within 15 Feet of Pool Piping
Installation and Service Manual
INSTALLATION Continued
Commercial Pool Heaters
Figure 36 - Heaters are within 15 feet Perpendicular of Pool Piping
Relief Valve
Water Flow Switch
Automatic Chlorinator and Chemical Feeders
Installation and Service Manual
CONNECTING TO ELECTRICAL SUPPLY
PUMP PURGE / MAINTENANCE TIMER OPTION
Pump Purge Delay Option
Service Indicator Option
TABLE-M Remote Wire Connection
Terminal Strip Connection Options
Installation and Service Manual
OPERATION
FOR YOUR SAFETY READ BEFORE OPERATING
Lighting Instructions
INSTALLATION Continued
To Turn Off Gas To Pool Heater
Pre-StartChecklist
Starting the Filter System
Commercial Pool Heaters
OPERATING TEMPERATURE CONTROL
OPERATION Continued
Commercial Pool Heaters
Installation and Service Manual
Programming Mode
Hot Surface Igniter and Ignition Control Module
HOT SURFACE IGNITION SYSTEM
Hot Surface Ignition Control Module
Commercial Pool Heaters
TABLE-N Ignition Control Diagnostic Codes
Access to Internal Control Panel
Removing the Control Panel
Hot Surface Ignition Module Timings Nominal
TABLE-O Status LED Diagnostic Codes
OPERATION AND DIAGNOSTIC INDICATORS
Water Chemistry
Commercial Pool Heaters
TABLE-P Recommended Water Chemistry
TABLE-Q AMP Draw Data
Test
Recommended Level
Pipe Size Requirements
TABLE-R Pipe Sizing Chart
Circulating Pump
Minimum Pump Performance
High Water Temperature Limit Control
CLEANING AND MAINTENANCE
Flue Gas Passageways Cleaning Procedures
Appliance Area
Burner Removal and Cleaning
CLEANING AND MAINTENANCE Continued
Heat Exchanger Cleaning
Electrical
Installation and Service Manual
Adjusting Differential Air Pressure
Servicing Hot Surface Igniter and Ignition Module
Adjustment Procedure
Ignition System Checkout
CLEANING AND MAINTENANCE Continued
SEQUENCE OF OPERATION
ENERGY SAVING RECOMMENDATIONS
Installation and Service Manual
Commercial Pool Heaters
GLOSSARY
PREPURGE
Installation and Service Manual
IGNITER WARM-UPAND PROVING
IGNITER
Commercial Pool Heaters
WIRING BOX CONNECTIONS
WIRING BOX CONNECTIONS
Installation and Service Manual
Commercial Pool Heaters
LADDER DIAGRAM
Installation and Service Manual
CONTROL BOX CONNECTIONS
Unit Start Up Checklist
Appendix A
Commercial Pool Heaters
Adjust Menu Settings for Operating Modes
Installation and Service Manual Appendix B
Advanced settings
View Menu Information
6/06-Printedin U.S.A