Bryant 607C-A installation instructions Configuration, Economizer Standard Sensors

Page 37

Filter

Clips

Aluminum

Filter

A09704

Fig. 36 - Filter Installation (See through view)

Top filter

rack

Evaporator Coil

CONFIGURATION

Economizer Standard Sensors

OUTDOOR AIR TEMPERATURE (OAT) SENSOR— The outdoor air temperature sensor (HH57AC080) is a 10 to 20mA device used to measure the outdoor-air temperature. The outdoor-air temperature is used to determine when the Economizer can be used for free cooling. The operating range of temperature measurement is

40to 100_F (4.4 to 37.8_C). The sensor has 8 selectable temperature changeover setpoints. The temperature changeover is set using 3 dip switches on the sensor. The ABCD potentiometer on the controller should be set to the “D” position. See Fig. 40.

SUPPLY AIR TEMPERATURE (SAT) SENSOR—The supply

 

 

air temperature sensor is a 3 KΩ thermistor located at the inlet of the

 

 

indoor fan. See Fig. 38. The operating range of temperature

 

 

measurement is 0_ to 158_F (-17.8_to 70_C). See Table 15 for

 

 

sensor temperature/resistance values. The temperature sensor looks

 

 

 

A

like an eyelet terminal with wires running to it. The sensor is located

 

--

 

--

in the “crimp end” and is sealed from moisture.

 

 

607C

Table 15 – Supply Air Sensor Temperature/Resistance Values

 

 

 

 

 

TEMPERATURE

CELSIUS (_C)

RESISTANCE (OHMS)

 

 

(_F)

 

 

 

 

 

 

---22

---30

53,010

 

 

 

 

 

 

 

---4

---20

29,091

 

 

 

 

 

 

 

14

---10

16,590

 

 

 

 

 

 

 

32

0

9,795

 

 

 

 

 

 

 

50

10

5,970

 

 

 

 

 

 

 

68

20

3,747

 

 

 

 

 

 

 

77

25

3,000

 

 

 

 

 

 

 

86

30

2,416

 

 

 

 

 

 

 

104

40

1,597

 

 

Screw

(Note 4 and 5)

Bottom filter rack

RIGHT SIDE

122

50

1,080

 

 

 

140

60

746

 

 

 

158

70

525

Supply Air Temperature

Sensor (SAT)

BENT COIL

Top filter rack

Evaporator

Coil

Bottom filter rack

STRAIGHT COIL

A09714

Fig. 37 - Indoor Coil with Filter Rack

Indoor

Blower

A09707

Fig. 38 - SAT Location

37

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Contents Safety Considerations Table of ContentsIntroduction Receiving and InstallationCheck Equipment Provide Unit Support607--A24-30 Unit Dimensions 607--A36-60 Unit Dimensions SMALL/COMMON Curb Inspection Rig and Place UnitRigging/Lifting of Unit See Fig Unit Falling HazardPersonal Injury and Electrical Operation Hazard Select and Install DuctworkProvide for Condensate Disposal Install Electrical ConnectionsHigh-Voltage Connections Unit Component Damage HazardSpecial Procedures for 208-V Operation Accessory Electric Heaters InstallationStandard Connections Transformer ProtectionMinimum Airflow for Reliable Electric Heater Operation CFM Condensate Trap Physical Data Unit 607--AConnection 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 START-UP Start-Up AdjustmentsCheck for Refrigerant Leaks Checking Cooling and Heating Control OperationIndoor Airflow and Airflow Adjustments Checking and Adjusting Refrigerant ChargeTwo Cooling Fan Speeds Set-up Dehumidification feature used Unit Operation HazardContinuous Fan Operation Single Speed Cooling With Higher Electric Heat SpeedColor Coding for Indoor Fan Motor Leads Quiet Shift Defrost ControlDefrost Air Filter MaintenanceIndoor Blower and Motor Personal Injury and Unit Damage HazardFilter Pressure Drop Table in. W.C 607--A Wet Coil Pressure Drop in. W.CCooling Charging Table-Subcooling Outdoor Coil, Indoor Coil, and Condensate Drain PanOutdoor Fan Electrical Controls and WiringRefrigerant Circuit Indoor AirflowLoss of Charge Switch Pressure SwitchesHigh-Pressure Switch Copeland Scroll Compressor Puron RefrigerantSTART-UP Checklist TroubleshootingSystem Information Puronr R-410A Quick Reference Guide Symptom Cause Remedy Troubleshooting ChartRemove and Store in Job Files TemperaturesPreliminary Information Model no III. START-UP Electrical Supply Voltage Compressor AmpsAccessories Vertical Economizer Factory Installed Option GeneralInstallation Small ChassisFilter Part Number Economizer Hood Top Panel RemovalHood Divider Removed Economizer Hood Assembly Horizontal Return Duct Cover Panel and Hood Divider Removal Large ChassisLeft Hood Side Hood Assembly Supply AIR Temperature SAT SENSOR-The supply ConfigurationEconomizer Standard Sensors 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 CO2 Sensor Standard Settings Economizer Input/Output Logic CO2 Sensor Standard SettingsOperation Troubleshooting 607C--A 30 3 Phase with Economizer 607C--A 36-60 3 Phase with Economizer
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