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Jandy

JXi

Gas Heater

The Jandy JXi is a gas-fired pool and spa heater available in 200, 260, and 400 thousand BTU sizes. It features direct vent capability, low NOx emissions, and integrates with Jandy AquaLink and iAquaLink automation systems.

Jandy JXi Gas-Fired Pool Heater
199,000 - 399,000 BTU
BTU Range
Natural Gas or Liquid Propane
Gas Type
120 VAC
Voltage
80 GPM
Max Flow
30 GPM
Min Flow

Specifications

Heating
BTU Range199,000 - 399,000 BTU
Gas TypeNatural Gas or Liquid Propane
Gas Inlet Connection3/4 in NPT
Min Gas Pressure4.0 in WC
Electrical
Voltage120 VAC
Max Amps5A
Performance
Min Flow (GPM)30 GPM
Max Flow (GPM)80 GPM
Min Water Pressure2 PSI
Physical
Inlet Size2 in PVC/CPVC
Outlet Size2 in PVC/CPVC
Exhaust Vent Size6 in (200), 7 in (260), 8 in (400)
Certifications
UL ListedYes
CSA CertifiedYes

Pros & Cons

Pros

  • Available in 200K, 260K, and 400K BTU
  • Low NOx emissions (SCAQMD Rule 1146.2 compliant)
  • Integrates with AquaLink and iAquaLink
  • ASME variants available for commercial
  • UL and CSA listed

Cons

  • 120V only
  • 30 GPM minimum flow requirement

Error Codes & Troubleshooting

Ignition Failure
No flame detected after ignition attempt
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High Limit
Water temperature exceeded safe limit
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Pressure Switch
Water pressure switch open — low flow
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Air Flow
Combustion air flow fault
Troubleshoot this →

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Replacement Parts

PartPart NumberDescription
Header Assembly KitR0522900Heat exchanger header assembly
Drain Cap Assembly KitR0523000Drain cap assembly
Pressure Relief Valve KitR0336101Pressure relief valve install kit
Flow Plate Assembly (200)R0725201Flow plate for JXi 200
Flow Plate Assembly (260)R0725202Flow plate for JXi 260
Flow Plate Assembly (400)R0725203Flow plate for JXi 400
Direct Air Conversion KitR0724600Direct air conversion R-Kit
Indoor Vent Adapter KitR0731100Indoor vent adapter

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