The 37E73A-903 is an Intelli-vent water heater valve that has a 1/2" NPT inlet and 1/2" inverted flare outlet connection size. It has a 70 to 160° range with a 30,000 to 150,000 BTU regulation range. For quick monitoring, the control uses diagnostic codes that represent system malfunction.
The water heater thermostat control is suitable for natural gas applications. The unit combines a gas valve, ignition control, and thermostat into one allowing quick and easy operation of the system. It features a fixed adjustment regulator that automatically regulates burner gas pressure.
The 37E73A-903 is easy and uses an INTELLI-IGNITION technology that prolongs the ignitor's life. It works by having the microcomputer regulate the water heater ignition sequence and timings. The 21D64-2 universal silicone nitride upgrade kit is also available.
| Ignitor Load | 2 Amps maximum |
|---|---|
| Input and Frequency | 120 VAC, 60 Hz |
| Current | 0.2 Amps @ 120 VAC |
| Range of Regulation (Btu/Hr) | 30,000 - 150,000 |
| Maximum Inlet Pressure | 1/2 PSI maximum |
| Ambient Temperature Rating | 32 F to 160 F (0 C to 70 C) |
| Automatic High Temperature Cutoff | Single-Use Type, 185 F(82 C) |
| Prepurge/Interpurge/Postpurge Time | 5 Seconds |
| Ignitor Warm-up Time | 20 Seconds |
| Trial for Ignition Period | 4 Seconds |
Download Product Information:
White-Rodgers 37E73A-903 Intelli-Vent Water Heater Valve Installation Instructions
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The 37E73A-903 is NOT listed as a direct replacement for the obsolete 37E73A-304.
Before purchasing a replacement part, we suggest having a local licensed professional review your equipment to ensure you select the correct replacement product for your unique application.
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