What voltage does the Raypak Professional Series X94 SR-410 require?

The Raypak Professional Series X94 SR-410 operates on 120 V.

What are the common error codes on the Raypak Professional Series X94 SR-410?

Common error codes include: Sensor Failure / Sensor Open / Sensor Short, Water Sw Open, Hi Limit 1 Fault / Hi Limit 2 Fault, Ignition Lockout, Ignition Failure. See the troubleshooting section for details on each.

Raypak Professional Series X94 SR-410 Specs, Parts & Error Codes

Specifications

Heating
BTU Capacity	399,000 BTU/hr
Gas Type	Natural Gas or Propane
Gas Inlet Connection	3/4 in. NPT
Electrical
Voltage	120 V
Phase	Single phase
Frequency	60 Hz
Current Draw	5 A
Performance
Min Flow (GPM)	40 GPM
Max Flow (GPM)	125 GPM
Physical
Dimensions	48 x 20.2 x 35.5 in.
Weight	300 lb
Plumbing Connection	2 in. PVC slip
Certifications
CSA Certified	Yes

Pros & Cons

Pros

Manual lists 399,000 BTU/hr input for SR-410 sizing.
Manual includes dimensions, flow range, venting, controls, diagnostics, wiring, troubleshooting, and parts.
Uses 120 V single-phase service with 5 A listed electrical requirement.

Watchouts

Confirm SR-410 fuel suffix and installation configuration before service.
Condensing/venting setup is more complex than standard residential gas heaters.
Combustion, venting, gas, and electrical service should be handled by qualified personnel.

Error Codes & Troubleshooting

Sensor Failure / Sensor Open / Sensor Short

Temperature sensor out of range. Inspect thermistor, wires, and connector at Terminal P1. Check resistance against chart values. Replace thermistor if not within 10%; if okay, replace the circuit board.

Water Sw Open

Water flow or pressure switch issue. Verify water flow and pressure, and clean the filter/strainer before replacing the switch.

Hi Limit 1 Fault / Hi Limit 2 Fault

High limit switch open. Verify water flow and inspect the internal thermostat and bypass valve. ASME units are manual-reset — press MODE to reset.

Ignition Lockout

Pilot flame not established, or lost during trial for main burner. Check power at the pilot valve, check for spark, and verify pilot orifice and igniter clearance.

Ignition Failure

Gas supply or valve operation issue. Verify gas is reaching the heater and confirm valve operation.

EOL (at startup)

Stuck MODE button. Check the MODE button on the control panel for a stuck or jammed switch.

Professional Series X94 SR-410

Specifications

Pros & Cons

Pros

Watchouts

Error Codes & Troubleshooting

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