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Product Specifications:
| Item | Furnace Control Board |
| Board Type | Integrated |
| Compatible Blower Motor Type | Permanent Split Capacitor |
| Compatible Inducer Motor Type | Permanent Split Capacitor |
| Compatible With Brand | Trane, White-Rodgers |
| Connection Interface Type | Spade Terminal |
| Control Mounting Type | Standoff |
| Control Voltage | 25V |
| Control Volts | 25 |
| Cool Blower Off Delay Setting | 180 sec. |
| Cool Blower On Delay Setting | 2 sec. |
| For Use With | Trane Furnace Systems |
| Furnace Control Functions | Cool, Heat |
| Heat Blower Off Delay Setting | 60 Sec., 100 Sec., 140 Sec., 180 Sec. |
| Heat Blower On Delay Setting | 45 sec. |
| Igniter Voltage | 120V AC |
| Ignition Type | Hot Surface Igniter |
| Input Voltage | 25V AC |
| Items Controlled | Air Cleaners, Blowers, Gas Valves, Humidifiers, Ignitors, Inducers |
| Max. Relative Humidity | 93% |
| Maximum Operating Temperature | 175°F |
| Minimum Operating Temperature | -40°F |
| Minimum Relative Humidity | 5% |
| No. Of Speed Taps | 2 |
| Number Of Stages | 1 |
| Overall Depth | 1 1/4" |
| Overall Height | 5 7/8" |
| Overall Width | 4 3/8" |
| Product Type | Furnace Control Board |
| Replacement For Oem Brand | Trane, White-Rodgers |
| Replacement For Oem Part No. | 50A55-3797, 50A55-474, 50A55-476, 50A55-571, CNT02789, CNT02891, CNT03799, D341122P01, D341235P01, D341235P03 |
| Replacement Type | Oem |
| Standards | Ccsaus |
| Terminal Designations | C, R, W, Y G |
| Twinning Compatibility | Not Twinning Compatible |
| Type | OEM Replacement |
Shipping Info:
| Ship weight (kg) | 0.29 |
| Ship height (cm) | 6.1 |
| Ship length (cm) | 20.07 |
| Ship width (cm) | 13.21 |
| Country of Origin | MX |
Product Details:
- Supercedes Trane CNT02789, CNT02891, CNT03799, D341122P01, D341235P01, D341235P03, White-Rodgers 50A55-474, 50A55-476, 50A55-571
Product Variants
| Product | Model | Input Voltage | Control Voltage | Type | Price | |
|---|---|---|---|---|---|---|
![]() |
50T35-743 | 24V AC | 24V | OEM Replacement | €268.72 | |
![]() |
21D83M-843 | 25V AC | 25V | OEM Replacement | €415.86 | |
![]() |
50M56U-751 | 25V AC | 25V | OEM Replacement | €289.07 | |
![]() |
50A65-5165 | 25V AC | 25V | OEM Replacement | €216.22 | |
![]() |
50A56-956 | 25V AC | 25V | OEM Replacement | €226.44 | |
![]() |
50M56X843 | - | - | - | €392.35 |
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Contact us
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WHITE-RODGERS 50A55-3797 Furnace Board For Trane Furnace Systems
€235.35 /unit

