What BTU sizes does the Raypak XTherm H/WH/P 504A-2004A come in?

The Raypak XTherm H/WH/P 504A-2004A is available in 500,000 - 1,999,000 BTU/hr.

What voltage does the Raypak XTherm H/WH/P 504A-2004A require?

The Raypak XTherm H/WH/P 504A-2004A operates on 120 VAC.

What are the common error codes on the Raypak XTherm H/WH/P 504A-2004A?

Common error codes include: Steady ON (PIM Red LED), 2 Flashes (PIM Red LED), 3 Flashes (PIM Red LED), 5 Flashes (PIM Red LED), 7 Flashes (PIM Red LED). See the troubleshooting section for details on each.

Raypak XTherm H/WH/P 504A-2004A Specs, Parts & Error Codes

Specifications

Heating
BTU Range	500,000 - 1,999,000 BTU/hr
Gas Type	Natural Gas or Propane
Electrical
Voltage	120 VAC
Phase	Single phase
Frequency	60 Hz
Performance
Min Flow Note	Pool flow and bypass requirements are model- and installation-specific; verify against the source manual tables.
Certifications
CSA Certified	Yes

Pros & Cons

Pros

Manual includes commercial installation, controls, wiring, venting, startup, maintenance, and parts sections.
Covers pool heater Type P configurations alongside hydronic and domestic hot water variants.
Useful for large commercial pool equipment rooms.

Watchouts

Commercial combustion, venting, gas-train, and code requirements are materially more complex than residential heaters.
Confirm Type P pool configuration and exact model before using specs.
Public spec page should not replace engineered sizing or licensed installation review.

Error Codes & Troubleshooting

Steady ON (PIM Red LED)

Internal Control Failure. Perform a power and system reset. If the fault remains, replace the PIM.

2 Flashes (PIM Red LED)

False Flame Error. Check for proper gas valve closure. Clean the burner and electrodes.

3 Flashes (PIM Red LED)

Ignition Lockout Fault. Check the gas supply, transformer, igniters, and wiring, then press the reset button on the PIM/membrane switch.

5 Flashes (PIM Red LED)

Low Voltage Fault. Check the 24 VAC input voltage - must be above 18.0 VAC. Replace the transformer if needed.

7 Flashes (PIM Red LED)

Hi-Limit Fault. Check for proper water flow, hi-limit setting, and outlet sensor.

8 Flashes (PIM Red LED)

Sensor Fault. Check the VERSA IC display for fault identification, then check the sensor and wiring.

13 Flashes (PIM Red LED)

Hi-Temperature Delta Fault. Check pump operation and confirm proper water flow across the heat exchanger.

14 Flashes (PIM Red LED)

Ft-Bus Communications Fault. Verify the VERSA IC control is connected and operating; check the cable between the VERSA IC control and the PIM.

15 Flashes (PIM Red LED)

Safety circuit open. Confirm all safeties are functioning normally. Check continuity at J8, pins 5 and 6, at the PIM.

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XTherm H/WH/P 504A-2004A

Specifications

Pros & Cons

Pros

Watchouts

Error Codes & Troubleshooting

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