Bryant 607C-A installation instructions Troubleshooting, START-UP Checklist, System Information

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607C-- -- A

Compressor Oil

The Copeland scroll compressor uses 3MAF POE oil. If additional oil is needed, use Uniqema RL32-3MAF. If this oil is not available, use Copeland Ultra 32 CC or Mobil Arctic EAL22 CC. This oil is extremely hygroscopic, meaning it absorbs water readily. POE oils can absorb 15 times as much water as other oils designed to HCFC and CFC refrigerants. Take all necessary precautions to avoid exposure of the oil to the atmosphere.

Servicing Systems on Roofs with Synthetic Materials

POE (polyolester) compressor lubricants are known to cause long term damage to some synthetic roofing materials. Exposure, even if immediately cleaned up, may cause embrittlement (leading to cracking) to occur in one year or more. When performing any service that may risk exposure of compressor oil to the roof, take appropriate precautions to protect roofing. Procedures which risk oil leakage include, but are not limited to, compressor replacement, repairing refrigerant leaks, replacing refrigerant components such as filter drier, pressure switch, metering device, coil, accumulator, or reversing valve.

Synthetic Roof Precautionary Procedure

1.Cover extended roof working area with an impermeable polyethylene (plastic) drip cloth or tarp. Cover an approximate 10x10 ft (3x3 m) area.

2.Cover area in front of the unit service panel with a terry cloth shop towel to absorb lubricant spills and prevent run-offs, and protect drop cloth from tears caused by tools or components.

3.Place terry cloth shop towel inside unit immediately under component(s) to be serviced and prevent lubricant run-offs through the louvered openings in the unit base.

4.Perform required service.

5.Remove and dispose of any oil contaminated material per local codes.

Liquid Line Filter Drier

The biflow filter drier is specifically designed to operate with Puron. Use only factory-authorized components. Filter drier must be replaced whenever the refrigerant system is opened. When removing a filter drier, use a tubing cutter to cut the drier from the system. Do not unsweat a filter drier from the system. Heat from unsweating will release moisture and contaminants from drier into system.

Puron (R-410A) Refrigerant Charging

Refer to unit information plate and charging chart. Some R-410A refrigerant cylinders contain a dip tube to allow liquid refrigerant to flow from cylinder in upright position. For cylinders equipped with a dip tube, charge Puron units with cylinder in upright position and a commercial metering device in manifold hose. Charge refrigerant into suction-line.

Step 13 — System Information

Loss of Charge Switch

The loss of charge switch is a protective device wired into control circuit (low voltage). It shuts off the compressor if abnormally low pressures are present in the refrigeration circuit.

NOTE: Because these switches are attached to refrigeration system under pressure, it is not advisable to remove this device for troubleshooting unless you are reasonably certain that a problem exists. If switch must be removed, remove and recover all system charge so that pressure gauges read 0 psi. Never open system without breaking vacuum with dry nitrogen.

Check Defrost Thermostat

The defrost thermostat is usually located on the lowest liquid leaving circuit of the left condenser coil (see Fig. 22). The thermostat closes at 32_F (0_C) and opens at 65_F (18_C).

The defrost thermostat signals heat pump that conditions are right for defrost or that conditions have changed to terminate defrost. It is a thermally actuated switch clamped to outdoor coil to sense its temperature. Normal temperature range is closed at 32_  3_F (0

1.7_C) and open at 65_  5_F (18 2.8_C).

NOTE: The defrost thermostat must be located on the liquid side of the outdoor coil on the bottom circuit and as close to the coil as possible.

FEEDER TUBE

STUB TUBE

DEFROST

THERMOSTAT

C99029

Fig. 22 - Defrost Thermostat

TROUBLESHOOTING

Refer to the Cooling and Heating Troubleshooting Chart (Table 9) for troubleshooting information.

START-UP CHECKLIST

Use the Start-Up Checklist.

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Contents Table of Contents Safety ConsiderationsCheck Equipment Receiving and InstallationIntroduction Provide Unit Support607--A24-30 Unit Dimensions 607--A36-60 Unit Dimensions SMALL/COMMON Curb Rigging/Lifting of Unit See Fig Rig and Place UnitInspection Unit Falling HazardSelect and Install Ductwork Personal Injury and Electrical Operation HazardHigh-Voltage Connections Install Electrical ConnectionsProvide for Condensate Disposal Unit Component Damage HazardStandard Connections Accessory Electric Heaters InstallationSpecial Procedures for 208-V Operation Transformer ProtectionCondensate Trap Physical Data Unit 607--A Minimum Airflow for Reliable Electric Heater Operation CFMConnection Wiring Schematics 208/230-1-60 Cont. Ladder Wiring Schematics 208/230-1-60 607C a Cont. Ladder Wiring Schematics 208/230-3-60 Connection Wiring Diagram Cont. Ladder Wiring Diagram Check for Refrigerant Leaks Start-Up AdjustmentsSTART-UP Checking Cooling and Heating Control OperationTwo Cooling Fan Speeds Set-up Dehumidification feature used Checking and Adjusting Refrigerant ChargeIndoor Airflow and Airflow Adjustments Unit Operation HazardColor Coding for Indoor Fan Motor Leads Single Speed Cooling With Higher Electric Heat SpeedContinuous Fan Operation Defrost Defrost ControlQuiet Shift Indoor Blower and Motor MaintenanceAir Filter Personal Injury and Unit Damage Hazard607--A Wet Coil Pressure Drop in. W.C Filter Pressure Drop Table in. W.COutdoor Coil, Indoor Coil, and Condensate Drain Pan Cooling Charging Table-SubcoolingRefrigerant Circuit Electrical Controls and WiringOutdoor Fan Indoor AirflowHigh-Pressure Switch Pressure SwitchesLoss of Charge Switch Copeland Scroll Compressor Puron RefrigerantSystem Information TroubleshootingSTART-UP Checklist Puronr R-410A Quick Reference Guide Troubleshooting Chart Symptom Cause RemedyPreliminary Information Model no TemperaturesRemove and Store in Job Files III. START-UP Electrical Supply Voltage Compressor AmpsInstallation Vertical Economizer Factory Installed Option GeneralAccessories Small ChassisEconomizer Hood Top Panel Removal Filter Part NumberHood Divider Removed Economizer Hood Assembly Large Chassis Horizontal Return Duct Cover Panel and Hood Divider RemovalLeft Hood Side Hood Assembly Economizer Standard Sensors ConfigurationSupply AIR Temperature SAT SENSOR-The supply 11.7C 12.8C 14.4C 17.2C 20C 22.8C 25.6C Economizer Controller 607C-- -- a Economizer Wiring Diagram A10200 Cont. Ladder Wiring Diagram A10199 607C-- -- a 607C-- -- a Operation CO2 Sensor Standard SettingsCO2 Sensor Standard Settings Economizer Input/Output Logic Troubleshooting 607C--A 30 3 Phase with Economizer 607C--A 36-60 3 Phase with Economizer
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