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Comfort™ Pro Commercial Non-Programmable Fan Coil Thermostat
33CSCNACHP-FC

Carrier’s commercial non-programmable thermostats offer flexibility, quality, and reliability. The wall-mounted, low-voltage thermostat maintains room temperature by controlling the operation of an HVAC (heating, cooling and ventilation) system. This thermostat can be used to control fan coil operation. Separate heating and cooling set points and auto-changeover capability allow for energy savings.

  • Non-mercury, non-lead based electronic controls built into slim plastic enclosure
  • 2-Pipe/4-pipe fan coil with 3-speed fan (2-speed for 2-pipe fan coil with emergency heat, cool only, heat only and automatic changeover)
  • English/metric unit selection
  • Proportional integral control of heating and cooling stages
  • Remote sensing and averaging
  • Keypad lockout security with passcode protection
  • 24 vac or battery powered user configured settings are stored for an unlimited period of time
  • Expanded backlit display features mode and equipment status, and outdoor-air temperature
  • Hospitality mode — display user set
  • Point in place of actual temperature
  • Random start

The thermostat allows separate heating and cooling set points. The thermostat stores installer configurations. In the event of power interruption, the internal memory stores set points for an unlimited time. When 24 vac is not available to power the thermostat, batteries can be added.

The Comfort™ Pro commercial non-programmable thermostat is capable of displaying the outside or supply-air temperature using the remote sensor input.

NOTE: Designed and assembled in the U.S.A.

Physical Characteristics

Dimensions (L x W x D): 5.1-in. (129.54 mm) x 4.1-in. (104.14 mm) x 1.1-in. (27.94 mm)

Appearance: plastic material; white smooth cover

Weight: approx. 1/2 lb (0.23 kg)

Lead-free design

Power Requirement

24 vac 50/60 Hz at 3 va RC/RH compatible

AA alkaline battery power also available (batteries not included)

Environmental Requirements

Operating temperature: 32 to 104 F (0° to 40 C)

Storage: –40 to 135 F (–40 to 57 C)

Humidity: 0 to 95% RH (relative humidity), non-condensing

Agency Approvals

FCC Part 15, Subpart J compliant

Title 24 compliant

CE mark approval

Electrical Characteristics

Inputs: 24 vac, 50/60 Hz, 3 va

Outputs:

  • Minimum Load = 1000 ohms
  • Maximum Load = 2.0 A, 50% pf (power factor) Inductive
  • Nominal Load Capacity = 1.5 Amps

Temperature Control

The thermostat uses proportional integral calculation to determine the number of stages required for heating or cooling (and fan speed for fan coil units) to provide accurate temperature control.

Accessories

  • Remote space sensor (33ZCT55SPT)
  • Outdoor temperature sensor (33ZCSENOAT)
  • Supply/return air sensor (33ZCSENSAT)
  • Changeover sensor for 2-pipe fan coil (33CSWCOFC-01)
  • Non-mercury, non-lead based electronic controls built into slim plastic enclosure
  • 2-Pipe/4-pipe fan coil with 3-speed fan (2-speed for 2-pipe fan coil with emergency heat, cool only, heat only and automatic changeover)
  • English/metric unit selection
  • Proportional integral control of heating and cooling stages
  • Remote sensing and averaging
  • Keypad lockout security with passcode protection
  • 24 vac or battery powered user configured settings are stored for an unlimited period of time
  • Expanded backlit display features mode and equipment status, and outdoor-air temperature
  • Hospitality mode — display user set
  • Point in place of actual temperature
  • Random start

The thermostat allows separate heating and cooling set points. The thermostat stores installer configurations. In the event of power interruption, the internal memory stores set points for an unlimited time. When 24 vac is not available to power the thermostat, batteries can be added.

The Comfort™ Pro commercial non-programmable thermostat is capable of displaying the outside or supply-air temperature using the remote sensor input.

NOTE: Designed and assembled in the U.S.A.

Physical Characteristics

Dimensions (L x W x D): 5.1-in. (129.54 mm) x 4.1-in. (104.14 mm) x 1.1-in. (27.94 mm)

Appearance: plastic material; white smooth cover

Weight: approx. 1/2 lb (0.23 kg)

Lead-free design

Power Requirement

24 vac 50/60 Hz at 3 va RC/RH compatible

AA alkaline battery power also available (batteries not included)

Environmental Requirements

Operating temperature: 32 to 104 F (0° to 40 C)

Storage: –40 to 135 F (–40 to 57 C)

Humidity: 0 to 95% RH (relative humidity), non-condensing

Agency Approvals

FCC Part 15, Subpart J compliant

Title 24 compliant

CE mark approval

Electrical Characteristics

Inputs: 24 vac, 50/60 Hz, 3 va

Outputs:

  • Minimum Load = 1000 ohms
  • Maximum Load = 2.0 A, 50% pf (power factor) Inductive
  • Nominal Load Capacity = 1.5 Amps

Temperature Control

The thermostat uses proportional integral calculation to determine the number of stages required for heating or cooling (and fan speed for fan coil units) to provide accurate temperature control.

Accessories

  • Remote space sensor (33ZCT55SPT)
  • Outdoor temperature sensor (33ZCSENOAT)
  • Supply/return air sensor (33ZCSENSAT)
  • Changeover sensor for 2-pipe fan coil (33CSWCOFC-01)