Bryant 677C--A Unit Size, CPRFCURB010A00, CPRFCURB011A00, CPRFCURB012A00, CPRFCURB013A00

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			HVAC unit
HVAC unit			HVAC unit
base rails			basepan

Sealing

Gasket

Roofcurb

B

C

F

Anchor screw

Flashing field supplied

Roofing material field supplied

Cant strip field supplied

Wood nailer*

Roofcurb*

Insulation

(field supplied)

A

E

D

SMALL CURB

A09110

-- A

*Provided with roofcurb

A09090

ROOF CURB DETAIL

B

C

F

A

E

D

		LARGE CURB			A09095
								A09111

	UNIT SIZE	CATALOG	A	B	C	D	E	F
	UNIT SIZE	NUMBER	IN. (mm)	IN. (mm)*	IN. (mm)	IN. (mm)	IN. (mm)	IN. (mm)
		NUMBER	IN. (mm)	IN. (mm)*	IN. (mm)	IN. (mm)	IN. (mm)	IN. (mm)

	Small	CPRFCURB010A00	11 (279)	10 (254)			32.4 (822)

		CPRFCURB011A00	14 (356)		16 (406)	47.8 (1214)		2.7 (69)
		CPRFCURB011A00	14 (356)

	Large	CPRFCURB012A00	11 (279)	14 (356)			43.9 (1116)
		CPRFCURB012A00	11 (279)

		CPRFCURB013A00	14 (356)
		CPRFCURB013A00	14 (356)

NOTES:

1. Roof curb must be set up for unit being installed.

2. Seal strip must be applied, as required, to unit being installed.

3. Roof curb is made of 16-gauge steel.

4. Attach ductwork to curb (flanges of duct rest on curb).

5. Insulated panels: 1-in. (25.4 mm) thick fiberglass 1 lb. density.

IMPORTANT: Do not install large base pan HYBRID HEAT	literature dimensional drawing to ensure that “Y” is greater than 14
units onto the small base pan (common curb). The center of gravity	in. (356 mm). Do not install any large base pan unit onto the
on a large base pan HYBRID HEAT unit could overhang the curb	common curb with a “Y” dimension (center of gravity) less than 14
causing an unsafe condition. Before installing any large base pan	in. (356 mm).

unit onto the common curb, check the “Y” distance in the product

Fig. 4 - Roof Curb Dimensions

5

677C--

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Contents Safety Considerations Table of ContentsIntroduction Receiving and Installation677C--A24-30 Unit Dimensions 677C--A36-60 Unit Dimensions CPRFCURB010A00 Unit SizeCPRFCURB011A00 CPRFCURB012A00Rigging/Lifting of Unit See Fig Rig and Place UnitInspection Install Gas Piping Install Flue HoodConnect Condensate Drain Carbon Monoxide Poisoning HazardFire or Explosion Hazard Install Duct ConnectionsConfiguring Units for Downflow Vertical Discharge Refrigerant Metering CompressorsCFM Furnace SectionHeating Inputs Physical Data Unit 677C--A Cont’dMaximum Gas Flow Capacity Special Procedures for 208-V Operation Install Electrical ConnectionsHigh-Voltage Connections Control Voltage ConnectionsPRE-START-UP Balance Point Setting-Thermidistat or Hybrid ThermostatTransformer Protection FIRE, EXPLOSION, Electrical Shock HazardSTART-UP Start-up Heating and Make Adjust- mentsCheck for Refrigerant Leaks Unit Sequence of OperationCheck Heating Control Adjust Gas InputCheck Gas Input Unit Damage HazardLimit Switches Airflow and Temperature RiseCheck Burner Flame Normal OperationRollout Switch Start-up Cooling and Make Adjust- mentsChecking and Adjusting Refrigerant Charge Indoor Airflow and Airflow AdjustmentsGas Heating Fan Speed Set-up Two Cooling Fan Speeds Set-up Dehumidification feature usedContinuous Fan Operation Color Coding for Indoor Fan Motor LeadsFilter Size CFM 677C--A Wet Coil Pressure DropRise Speed Color Range Unit Heating Motor Wire1505 1452 1413 1358 1323 1282 1234 1169 1130 25 55oF Heating 1962 1915 1880 1843 1794 1753 1711 1675 1628 35 65oF Heating 1962 1915 1880 1843 1794 1753 1711 1675 1628 30 60oF Heating 1887 1847 1783 1726 1677 1625 1578 1527 1432 30 60oF Heating 677C a 208/230-3-60 Wiring Diagram, Unit 677C--A Cooling Charging Table-Subcooling Cleaning the Blower Motor and Wheel MaintenanceAir Filter Indoor Blower and MotorInduced Draft combustion air Blower Assembly Limit SwitchBurner Ignition Flue Gas PassagewaysOutdoor Fan Electrical Controls and WiringRefrigerant Circuit EXPLOSION, Personal Injury and Environmental HazardLoss of Charge Switch Pressure SwitchesGas Input Indoor AirflowExplosion Hazard High-Pressure SwitchCopeland Scroll Compressor Puron Refrigerant Refrigerant System Unit Operation and Safety HazardCompressor Oil Servicing Systems on Roofs and with Synthetic materialsPuronr R-410A Quick Reference Guide TroubleshootingSTART-UP Checklist Symptom Cause Remedy Troubleshooting Guide Cooling or Heat Pump Heating ModeLED OFF Troubleshooting Guide-HeatingTroubleshooting Guide-LED Status Codes Remove and Store in Job Files TemperaturesPreliminary Information Model no III. START-UP Electrical Supply Voltage Compressor Amps