Carrier · Comfort 96 (59SC6A) · Model
Carrier Comfort 96 59SC6A 120M24–22
The 59SC6A 120M24–22 is the 120,000 BTU/h, 24.5-inch-wide Comfort 96: 116,000 BTU/h output on a single gas rate, 96.1% AFUE upflow, with six burners and a 1 HP multi-speed ECM blower. It is a specialist size for genuinely large or poorly insulated houses.
Rating plate
- Model
- 59SC6A 120M24–22
- Input
- undefined – 120,000 BTU/h
- Output
- undefined – 116,000 BTU/h
- AFUE
- 96.1% upflow · 95% down/horiz
- Burner
- Single-stage
- Blower
- ECM, constant torque (variable-speed)
- Fuel
- Natural gas / Propane
- Cabinet
- 35 × 24.5 × 29.5 in
- Canada
- Available in Canada
At this capacity the Comfort 96 is a large appliance that delivers 116,000 BTU/h at full fire on every call, drawing its heat from six burners. The 24.5-inch cabinet, 181 lb shipping weight and 1 HP blower (up to 2,240 CFM of cooling airflow) need a mechanical room that fits them and a duct system that can move the air.
Carrier certifies this size at 96.1% AFUE upflow and 95% downflow, with a 15 A maximum breaker despite its size, thanks to the ECM motor. In the Lower Mainland it appears most replacing an old large furnace in a big older house where the heat-loss calculation confirms the capacity, not as a first choice for new construction.
The honest caution applies at this end of the range as strongly as at the small end: an oversized furnace short-cycles, wears its parts and can freeze or flood its own vent in mild weather. The size is chosen from the calculation, never from the old furnace's rating plate alone.
Specifications
From Carrier's published product data. Input and output are listed separately; AFUE depends on installation position.
| Specification | Value | Note |
|---|---|---|
| Input | ||
| Input | 120,000 BTU/h | |
| Output | ||
| Output capacity | 116,000 BTU/h | Carrier product data; DOE test procedure, position dependent. |
| Efficiency | ||
| AFUE, upflow / horizontal | 96.1 % | |
| AFUE, downflow | 95 % | |
| Airflow | ||
| Certified temperature rise range | 40 – 70 °F (22 – 39 °C) | |
| Airflow, heating @ rated ESP | 1,965 CFM | |
| Cooling airflow range | 290 – 2240 CFM | |
| Blower motor | Multi 18-speed, constant-torque (MCT) ECM | Not a communicating constant-airflow motor; speeds are installer-selectable. |
| Physical | ||
| Cabinet width | 24.5 in | 622 mm |
| Shipping weight | 181 lb | 82 kg |
| Cabinet height | 35 in | 889 mm |
| Cabinet depth | 29.5 in | 750 mm |
| Installation positions | Upflow, downflow, horizontal left, horizontal right | |
| Venting | ||
| Venting | Direct vent (2-pipe), single-pipe, or ventilated combustion air on sizes above 26,000 BTU/h; the 26,000 BTU/h size uses 2-pipe venting with outside combustion air and is not classed as direct-vent | |
| Electrical | ||
| Blower motor | 1 HP | |
| Maximum unit amps | 13.2 A | |
| Maximum fuse / breaker | 15 A | |
| Electrical supply | 115 V, 60 Hz, 1 phase (104 – 127 V) | |
| Controls | ||
| Burner staging | Single-stage (full fire on every call) | |
| Other | ||
| Burners | 6 | |
| Inducer | Single-speed | |
| Fuel | Natural gas; propane with gas conversion accessory kit | |
Filters, serial numbers and service parts
Filter
- Field-supplied filter; certified watt data uses Carrier media filter 325531-40
Components this family's service documentation covers
- Hot-surface ignitor
- Flame sensor
- Pressure switches
- Inducer motor
- Condensate trap and drain components
- ECM blower motor
- Control board
Service-parts list source: Components documented for service in 59SC6A-01SI REV D.
Fault codes this model can show
Best for
- Large detached houses and older homes with high verified design heat loss
- Houses whose duct system is built to move 2,000+ CFM and can take a 24.5-inch cabinet
- Replacements where the calculation confirms capacity above the 100,000 BTU/h sizes
Compatible controls
- Standard 24 V thermostat terminals: G, C, W, Y, R
- On-board 3-digit status display with NFC setup via the Carrier service technician app
- EAC-1 (115 VAC), HUM (24 VAC) and 1-stage AC accessory connections
System integrations
- Air conditioner or heat pump (dual-fuel / Hybrid Heat) with a compatible thermostat
- Twinning of two furnaces with the accessory kit (selected sizes only)
- Manufactured (mobile) home applications with the MH accessory kit (selected sizes)
- Field-supplied filter or optional media filter cabinet
Manuals, codes and service
Documents
- 59SC6A Product Data — Comfort 96, Single-Stage, Multi 18-Speed ECM (59SC6A-01PD REV B)
- 59SC6A Installation, Start-up, Operating and Service and Maintenance Instructions (59SC6A-01SI REV D)
Fault codes that apply
- Code 23: pressure switch stuck closed
- Code 24: fuse fault
- Code 25: control program and configuration faults
- Code 27: super plug or control program fault
- Code 31: secondary pressure switch open or lockout
- Code 32: open main pressure switch (LPS)
- Code 33: a switch has opened in the main limit circuit
- Code 34: ignition fault or flame loss
- Code 45: control failure
- Code 46: momentary loss of power
- Code 10: rapid flash - L1 polarity fault
- Code 12: W on at power up
- Code 13: limit lockout or ignition lockout
- Code 14: flame-loss lockouts during a heat request
- Code 21: 24 VAC sensed on the gas valve when it shouldn't be
- Code 22: false flame
BC Wide service
This catalogue page is reference information for anywhere in Canada. On-site service for this model is available across Greater Vancouver from BC Wide's Burnaby base — see furnace service in Burnaby and all service areas.
Questions people ask
Why would anyone choose the single-stage Comfort 96 at 120,000 BTU/h?
When the house truly needs the capacity and the owner's priority is the lowest first cost among 95%+ furnaces. The trade-off is full-fire cycling; Carrier's two-stage Performance 96 at this capacity is gentler but costs more.
Does this furnace need a big electrical circuit?
No. Carrier's product data lists a 15 A maximum fuse or circuit breaker with 14 AWG minimum wire for the whole 59SC6A family, including this size.
Considering the 59SC6A 120M24–22?
Get a published ballpark range for a supply-and-install, then a consultation to confirm sizing from a heat-loss assessment. Equipment-only pricing is not offered on this site.