Installation and operation guide for the Jandy LJ pool and spa heater, covering safety, venting, gas, water, electrical and maintenance.
This manual provides complete instructions for installing and operating the Jandy Lite2 Model LJ pool and spa heater. It includes safety warnings, required materials, venting and clearance requirements, and detailed wiring diagrams.
The guide also covers routine maintenance, troubleshooting codes, and parts ordering information, helping both installers and owners keep the heater running safely and efficiently.
| Installation Location (certified for use) | USA: Natural Gas indoor & outdoor, Propane outdoor only; Canada: Natural Gas outdoor & outdoor shelter, Propane outdoor only |
|---|---|
| Minimum Clearance from Combustible Material | See Table 2 in Section 2.3.2 |
| Gas Pipe/Heater Gas Valve Connection | 3/4" NPT |
| Supply Gas Type | Natural Gas and Liquefied Petroleum Gas (LPGas or Propane Gas) |
| Inlet Gas Supply Pressure | Natural Gas: 5.5 "WC 10.0 "WC; LP Gas: 10.0 "WC 14.0 "WC |
| Flow Rate | Maximum 125 gpm (475 lpm), Minimum 30 gpm (110 lpm) |
| Electrical Supply | Either 115 V AC or 230 V AC |
Do not try to light any appliance, do not touch any electrical switch, and immediately call your gas supplier or fire department for instructions.
Spa or hot tub water should never exceed 104 °F (40 °C); 100 °F (38 °C) is considered safe for a healthy adult.
At least 20 inches (500 mm) of access must be available in front of the heater for burner removal.
The gas pipe/heater gas valve connection uses a 3/4" NPT fitting for natural gas and LP gas.