Bryant
677C--A
installation instructions
677C a
Troubleshooting
Install
Unit Heating Motor Wire
Dimension
Maintenance
Symptom Cause Remedy
Adjust Gas Input
Airflow and Temperature Rise
Rollout Switch
Page 24
--677C
A--
A09068
Fig. 15 -
208/230-1-60
Wiring Diagram, Unit
677C--A
24
Page 23
Page 25
Image 24
Page 23
Page 25
Contents
Table of Contents
Safety Considerations
Receiving and Installation
Introduction
677C--A24-30 Unit Dimensions
677C--A36-60 Unit Dimensions
Unit Size
CPRFCURB010A00
CPRFCURB011A00
CPRFCURB012A00
Rig and Place Unit
Inspection
Rigging/Lifting of Unit See Fig
Install Flue Hood
Install Gas Piping
Connect Condensate Drain
Carbon Monoxide Poisoning Hazard
Install Duct Connections
Configuring Units for Downflow Vertical Discharge
Fire or Explosion Hazard
Compressors
Refrigerant Metering
CFM
Furnace Section
Physical Data Unit 677C--A Cont’d
Maximum Gas Flow Capacity
Heating Inputs
Install Electrical Connections
Special Procedures for 208-V Operation
High-Voltage Connections
Control Voltage Connections
Balance Point Setting-Thermidistat or Hybrid Thermostat
PRE-START-UP
Transformer Protection
FIRE, EXPLOSION, Electrical Shock Hazard
Start-up Heating and Make Adjust- ments
START-UP
Check for Refrigerant Leaks
Unit Sequence of Operation
Adjust Gas Input
Check Heating Control
Check Gas Input
Unit Damage Hazard
Airflow and Temperature Rise
Limit Switches
Check Burner Flame
Normal Operation
Start-up Cooling and Make Adjust- ments
Rollout Switch
Checking and Adjusting Refrigerant Charge
Indoor Airflow and Airflow Adjustments
Two Cooling Fan Speeds Set-up Dehumidification feature used
Gas Heating Fan Speed Set-up
Continuous Fan Operation
Color Coding for Indoor Fan Motor Leads
677C--A Wet Coil Pressure Drop
Filter Size CFM
Unit Heating Motor Wire
Rise Speed Color Range
1505 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
Maintenance
Cleaning the Blower Motor and Wheel
Air Filter
Indoor Blower and Motor
Limit Switch
Induced Draft combustion air Blower Assembly
Burner Ignition
Flue Gas Passageways
Electrical Controls and Wiring
Outdoor Fan
Refrigerant Circuit
EXPLOSION, Personal Injury and Environmental Hazard
Pressure Switches
Loss of Charge Switch
Gas Input
Indoor Airflow
High-Pressure Switch
Copeland Scroll Compressor Puron Refrigerant
Explosion Hazard
Unit Operation and Safety Hazard
Refrigerant System
Compressor Oil
Servicing Systems on Roofs and with Synthetic materials
Troubleshooting
START-UP Checklist
Puronr R-410A Quick Reference Guide
Troubleshooting Guide Cooling or Heat Pump Heating Mode
Symptom Cause Remedy
Troubleshooting Guide-Heating
Troubleshooting Guide-LED Status Codes
LED OFF
Temperatures
Remove and Store in Job Files
Preliminary Information Model no
III. START-UP Electrical Supply Voltage Compressor Amps
Related pages
Physical Specifications for NAD 701
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