Instruction/ maintenance manual of the product 37E37A-903 & 906 White Rodgers
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www .white-rodgers.com www .emersonclimate.com 37E73A-903 & 906 INTELLI-VENT™ W ater Heater Ther mostat Control Installation Instructions For Natural Gas Only Operator: Save these instructions f.
2 SPECIFICA TION ELECTRICAL RA TINGS: Input and Frequency: 120 V AC , 60 Hz Output Ratings: Ignitor Load: 2 Amps maximum Inducer Draft Motor: 3 Amps Full Load, 4 Amps Lock ed Rotor Current: 0.2 Amps @ 120 V A C Range of Regulation (Btu/Hr) Minimum: 30,000 Maximum: 150,000 1.
3 GROUND JO IN T UNION IN TE LLI-VE NT ™ CONTROL GAS SUPPL Y PI PE TE E DRIP LE G (SEDIMET TR AP ) 3" MINIMU M (M ANDA TO RY ) PIPE CA P SHUT -O FF VALV E 8. Open the gas shutoff valv e. 9. BEFORE TURNING ON THE APPLIANCE, CHECK THE GAS LINES FOR LEAKS.
4 T able 1. T emperature Settings Display A B C Appro ximate T emperature ( +10 o F) Appro ximate Time to Cause Injury 70 (V acation) N/A 110 115 120 5 minutes 125 130 30 seconds 135 140 5 seconds 145 150 1.5 seconds 160 under 1 second Flashing WA RNING ! Never allow small children to use a hot water tap, or to draw their own bath water .
5 A typical system wiring diagram is shown belo w . Use the water heater manuf acturer’ s wir ing diagram f or details of the installation. Alwa ys follo w the instructions supplied with the water heater , and those of the water heater man uf acturer .
6 SEQUENCE OF OPERA TIONS APPLY POWER TO APPLIA NC E IS FIELD WIRING CORRECT? DISPLAY ERROR CODE 1 OR 2 NO YES REQUEST FOR HEAT PRESENT? NO IS PRESSURE SWITCH PROVEN OPEN WITHIN 5 SECONDS? YES NO COMB.
7 SEQUENCE OF OPERA TIONS Error Indication Check, Repair , or Replace A B C 1 An open ear th ground cir- cuit to the ignition system 1. Check that the earth ground conductor is properly connected at the fuse bo x or breaker panel and the water heater .
A B C 7 The self diagnostic test f ound a problem with the gas valv e driver circuit 1. Cycle power to the w ater heater off for 10 seconds and then back on. 2. If the abov e step did not cleat the error , the INTELLI-VENT™ control must be replaced A B C 8 The self diagnostic test has detected a problem with the internal microcomputer.
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