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General| Brand | Jandy |
|---|---|
| Model | LRZ Electronic |
| Category | Swimming Pool Heater |
| Language | English |
Overview of the Legacy Model LRZ electronic pool and spa heaters.
Safety rules for hot tubs and energy saving tips for swimming pools.
Details the limited factory warranty for the Legacy Model LRZ electronic heater.
Outlines applicable codes and standards for installation in the USA and Canada.
Provides contact information for technical support regarding Jandy products.
Lists materials required for installation, distinguishing between general and special applications.
Details general specifications and dimensions of the heater.
Overview of installation requirements, safety, and necessary components for the Legacy Model LRZ heater.
Guidance on assembling the heater in the field, especially for outdoor installation configurations.
Critical factors for choosing an installation site, including clearances, flooring, and outdoor/shelter installation.
Explains the importance of sufficient combustion and ventilation air for safe and efficient heater operation.
Guidelines for vent pipe sizing and installation for various scenarios, including outdoor and shelter setups, and inspection/replacement.
Covers gas supply, piping requirements, and important safety warnings for natural gas and LP units.
Details how to check and adjust manifold gas pressure for both natural gas and propane heaters.
Highlights specific safety precautions and installation restrictions for Liquefied Petroleum (LP) gas.
Illustrates typical piping for pool/spa combinations and discusses considerations for heater placement.
Provides instructions and warnings for installing a check valve to prevent back-siphoning.
Explains the function of the automatic flow control valve and when a manual bypass is needed.
Describes how to modify the heater for left-side water connections, requiring professional service.
Details how to connect PVC or CPVC pipe to the heater's water headers.
Instructions for installing a pressure relief valve, including safety precautions and drilling steps.
Discusses compatibility issues with chemicals and components, and installation recommendations.
General information on wiring connections, grounding, and referencing the wiring diagram.
Electrical wiring requirements for 120V and 240V supply, including NEC and CEC compliance.
Explains the importance of bonding for preventing premature failure due to stray voltages.
Safety warning and overview of connecting optional remote controls.
Instructions for connecting a 3-wire remote pool-off-spa selector to the heater.
Guidance for connecting AquaLink RS, PDA, or Remote TSTAT (2-wire) or Fireman's Switch.
Information on installing and using a secondary wall-mountable user interface.
Describes the normal automatic operation of the heater, including its safety system and diagnostics.
Provides essential safety warnings and steps for starting up the heater safely.
Explains how to use the controller for Pool Mode, Spa Mode, and Off Mode.
Allows selection of language, temperature scale, spa timer, and display light settings.
How to lock and unlock the temperature set point to prevent unintended changes.
Detailed instructions for safely lighting the heater and shutting it down.
Procedure for adjusting the water pressure switch for proper heater operation.
How to measure and adjust the temperature rise for optimal performance and heater life.
Guidelines for maintaining proper water chemistry to prevent heater damage and ensure sanitary conditions.
Covers spring/fall operation, winterizing, and spring start-up for optimal heater performance.
Emphasizes periodic inspections by owners and professionals for safe and efficient heater operation.
Basic inspection steps for owners to ensure the heater is clear of debris and safe.
Outlines essential safety checks for qualified technicians to perform annually.
Lists common heater problems, their causes, and suggested solutions for first-time or spring start-up.
Explains how the controller displays FAULT messages and lists service codes with causes and remedies.
States that servicing must be done by qualified technicians and lists owner checks before calling for service.
Describes the natural-draft atmospheric combustion system and airflow process of the heater.
Details the function of key heater components like the gas valve, temperature control, igniter, and sensors.
Guides technicians through checking electrical power and control components to diagnose issues.
How to check the heater's electrical power supply voltage and troubleshoot external issues.
Step-by-step guide for troubleshooting the heater's 24V control circuits and components.
Procedure for testing the transformer's output voltage.
Steps to check the fuse for continuity and proper amperage rating.
How to test the water pressure switch and its circuit for proper operation.
Guidance on testing the roll-out switch (fusible link) and vent temperature limit.
How to test the 130°F and 150°F limit switches and associated wiring.
Procedure for checking voltage to the gas valve and troubleshooting valve operation.
Testing the igniter and ignition control circuit, including safety precautions.
Information on how to order replacement parts from dealers or distributors.
A comprehensive list of available replacement parts for the Legacy Model LRZ heater.
An exploded view diagram showing the overall assembly of the heater.
Detailed exploded view diagrams illustrating specific component assemblies.
