CNT03797 CNT3797 156-7457A WR Furnace Control Board Fits Trane American Standard

Description

120 VAC Ignitor Output
120 VAC Humidifier Output
120 VAC Electronic Air Cleaner Output
120 VAC 2-Speed PSC Circulator Output
Fuse Protection - 5 Amp
Furnace Status LED
Heat Fan OFF Delay (Dipswitch Selectable)
Y, W, R, G, C
Specifications Electrical Ratings [@ 77°F (25°C)] Input Voltage: 25 VAC 50/60 Hz Max. Input Current @ 25 VAC: 0.45 amp Relay Load Ratings Valve Relay: 1.5 amp @ 25 VAC 50/60 Hz 0.6 pf Ignitor Relay: 6.0 amp @ 120 VAC 50/60 Hz (resistive) Inducer Relay: 2.2 FLA–3.5 LRA @ 120 VAC Circulator Relay: 14.5 FLA–25.0 LRA @ 120 VAC Flame Current Requirements Minimum current to insure flame detection: 1 µa DC* Maximum current for non-detection: 0.1 µa DC* Maximum allowable leakage resistance: 100 M ohms *Measured with a DC microammeter in the flame probe lead Operating Temperature Range -40° to 175°F (-40° to 80°C) Humidity Range 5% to 93% relative humidity (non-condensing) Mounting Surface mount multipoise Timing Specifications (@ 60 Hz**) Maximum Flame Establishing Time: 0.8 sec Flame Failure Response Time: 2.0 sec **At 50 Hz, all timing specifications should be increased by 20% Gases Approved: Natural, Manufactured, Mixed, Liquified Petroleum and LP Gas/Air Mixtures are all approved for use. Dimensions 4.4" W x 5.9" H x 1.25" D
Pre-purge 0 Ignitor warm-up 17 (1st 64 attempts) Minimum ignitor warm-up 11 Maximum ignitor warm-up 21 Ignition activation period 3 Trial for ignition period 4 Retries 2 times Valve sequence period 12 Interpurge 60 Post-purge 5 Lockout time 300 Heat delay to fan ON 45 Heat delay to fan OFF* 60/100/140/180 Cool delay to fan ON 2 Cool delay to fan OFF 0/180 Auto reset 60 minutes Humidifier Yes Electronic air cleaner Yes