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Jandy LJ250 Manuals
Manuals and User Guides for Jandy LJ250. We have
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Jandy LJ250 manual available for free PDF download: Installation And Operation Manual
Jandy LJ250 Installation And Operation Manual (52 pages)
Lite2 Pool and Spa Heater
Brand:
Jandy
| Category:
Swimming Pool Heater
| Size: 2.56 MB
Table of Contents
Table of Contents
2
SECTION 1. General Information
4
Introduction
4
Consumer Information and Safety
4
Spa/Hot Tub Safety Rules
4
Swimming Pool Energy Safety Tips
5
Warranty
5
Codes and Standards
5
Technical Assistance
5
Materials Installer Must Provide
6
Materials for All Applications
6
Materials for Special Applications
6
Specifications
6
General Specifications
6
Dimensions
7
SECTION 2. Installation Instructions
7
Introduction
7
Field Assembly
7
Location Requirements
8
Introduction
8
Clearances
9
Flooring
9
Outdoor Installation
10
Indoor and Outdoor Shelter Installation
11
SECTION 3. Venting
11
Combustion Air Supply
11
Vent Pipe Sizing and General Installation
12
Outdoor Installations
12
Indoor and Outdoor Shelter Installations
12
SECTION 4. Gas Connections
13
Gas Supply and Piping
13
Manifold Pressure
15
Special Precautions for Propane Gas
15
Water Piping
15
SECTION 5. Water Connections
16
Check Valve Installation
16
Automatic Flow Control Valve
16
Reversible Water Connections
16
Connections at Heater
19
Pressure Relief Valve
19
Auxiliary Components, Chlorinators, Ozone Generators, and Sanitizing Chemicals
19
SECTION 6. Electrical
20
General Information
20
Main Power
20
Wiring Diagram
21
Wiring Connection
21
Bonding
22
Pump Power Connection
23
SECTION 7. Operating Instructions
23
Start-Up
23
Setting the LJ Controller Functions and Limits
24
Setting the Real Time Clock
25
Setting the Temperature Scale
25
Setting Pool and Spa Temperatures
25
Setting the Freeze Temperature
26
Setting the Internal Pump Time Clock
27
Lighting and Shutdown Procedures
27
Heater/Controller Operation
27
Normal Operation
29
Pump Operation
29
Pump Operation in "External Time Clock" Mode
29
Pump Operation in "Internal Time Clock" Mode
30
Locking/Unlocking the Keypad
30
Remote Control Operation
30
Remote Control Connected at Fireman Switch Terminal Block
30
Remote Control Connected at the Heater's Control Panel
31
Water Pressure Switch Adjustment
31
Temperature Rise
32
Adjusting the Manual Bypass Valve
33
SECTION 8. Maintenance
34
Water Chemistry
34
Seasonal Care
34
Spring and Fall Operation
34
Winterizing
34
Spring Start-Up
35
Inspection and Service
35
Owner Inspection
36
Professional Inspection
36
SECTION 9. Troubleshooting
37
General Heater Troubleshooting
37
LJ Controller Service Codes
37
Explanation of Error Codes
37
Resetting the LJ Controller Service Codes
38
Diagnostic
39
SECTION 10. Professional Maintenance and Service
41
General Information
41
Natural-Draft Combustion System
41
Heater Components and Their Operation
42
Electrical Troubleshooting
44
Electrical Power Supply
44
Controller
44
Control Circuit Troubleshooting
44
Transformer
44
Fuse
45
Fireman Switch and External Interlocks
45
Fusible Link
45
Limit Switches
45
Water Pressure Switch
45
Gas Valve Voltage
46
Igniter/Ignition Control
46
SECTION 11. Replacement Parts
47
Ordering Information
47
Parts List
47
General Exploded View
49
Detailed Exploded View
50
Limited Warranty
52
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