Carrier 39L specifications Recommended Sensor Device Wiring, Manufacturer Part Number, Processor

Page 52

Field Wiring Connections Ð All ®eld wiring must comply with National Electric Code (NEC) and all local re- quirements. The recommended wiring is as follows:

Dampers, actuators,

Ð

4-conductor 20 AWG cable

and valves

Ð

(2 twisted pairs, unshielded)

Sensors

2-conductor 20 AWG cable

 

 

(one twisted pair, unshielded)

Refer to Table 8 for recommended brands and part numbers.

Table 8 Ð Recommended Sensor and

Device Wiring

MANUFACTURER

PART NUMBER

Regular*

Plenum*

 

Alpha

1895

Ð

American

A21501

A48301

Belden

8205

88442

Columbia

D6451

Ð

Manhattan

M13402

M64430

Quabik

6130

Ð

*Within a building.

NOTE: Wiring is 20 gage, 2-conductor twisted cable.

REMOTE LOCAL INTERFACE DEVICE (HSIO) Ð When ordered as part of a 39L or 39NX unit, the HSIO is factory- installed and fully wired.

To reinstall the HSIO in a remote location away from the control box, refer to the factory wiring connections in Fig. 9-12 and proceed as follows:

1.Use a 20 AWG 2-conductor twisted wire pair (Belden No. 8205 or equivalent) to supply power to the HSIO mod- ule. Use a 20 AWG 3-conductor cable shielded with drain wire (Belden No. 8772 or equivalent) for communication with the HSIO. Cable length must not exceed 1000 ft.

2.Pull the 2 cables (power and signal) through the electri- cal conduit to the NEMA standard box or HSIO. Leave approximately 4 ft of wire in the PIC control box for terminations.

3.Route the cables from the PIC control box to the HSIO bracket. Secure the HSIO cables to the existing cables using either tie wraps or by twisting the HSIO cables around the existing cables. Strip back the jacket 6 in. on each cable after cutting off the excess. Connect the power cable at the PIC control box to the existing 3-pin connector hang- ing at the HSIO bracket. The wires should be terminated in the screw-type locking clamps on Terminals 1 and 2.

4.Connect the signal cable at the PIC control box to the existing 4-pin communications connector hanging at the HSIO bracket. The wires should be terminated in the lock- ing clamps on Terminals 1, 2, and 3. The shield should be terminated at the HSIO bracket (ground). Be sure to note the color coding used on the cable for later reference when terminating the other end of the cable.

5.At the NEMA standard box or HSIO, connect the power conductors to Pin 1 and 2 of the 3-pin plug. Using the color coding from the above step, connect the signal cable to Pin 1, Pin 2, and Pin 3 of the 4-pin communications connector. Remove the shield and drain wire from this end of the cable.

6.After the HSIO is installed inside the remote cover, con- nect the 4-pin and 3-pin plugs to the HSIO.

RETURN-AIR TEMPERATURE SENSOR, OUTDOOR- AIR TEMPERATURE SENSOR, ENTHALPY SWITCH, AND MIXED-AIR TEMPERATURE SENSOR Ð Wires are to be connected to the proper terminals on the processor mod- ule. See Fig. 44 for details.

Select a 20 AWG twisted pair, no shield cable. Connect as per table below:

 

PROCESSOR

SENSOR

MODULE

 

PIN NO.

Return-air temperature sensor (RAT)

20 and 21

Outside-air temperature sensor (OAT)

5 and 6

Enthalpy switch (ENT)

34 and TB2-3

Mixed-air temperature sensor (MAT)

8 and 9

Space temperature sensor (SPT)

17 and 18

NOTE: The MAT is factory wired on all units with a factory-installed mixing box, ®lter mixing box, or air blender.

SPACE TEMPERATURE SENSOR (SPT) Ð The space tem- perature sensor cover includes terminal block TB1, a jumper between Pin E2 and Pin E3, and an RJ11 female connector. The RJ11 female connector connects the service tool with the Carrier Comfort Network.

Jumper MUST be in place between Pin E2 and Pin E3 or inaccurate readings could result. Ensure that the jumper is in place before installing the sensor.

Using a 20 AWG twisted pair conductor cable rated for the application, connect one wire of the twisted pair to Terminal T1 and connect the other wire to Terminal T2 on TB1. See Fig. 45.

The other ends of the wires are connected to the processor (PSIO master) module. As polarity is not a consideration, connect one wire to Terminal 17 and one wire to Terminal 18 of the processor module.

RJ11 Plug Wiring Ð Refer to the Carrier Comfort Network Interface, page 64, for communication bus wiring and cable selection. The cable selected must be identical to the CCN communication bus wire used for the entire network.

Cut the CCN wire and strip the ends of the RED, WHITE, and BLACK conductors. Insert and secure the RED (1) wire to Pin J2 of the SPT terminal strip TB1. Insert and secure the WHITE (ground) wire to Pin J3 of the SPT terminal strip TB1. Insert and secure the BLACK (−) wire to Pin J5 of SPT terminal strip TB1.

The other end of the communication bus cable must be connected to the remainder of the CCN communication bus at the COMM1 plug on the processor (PSIO master) mod- ule. Refer to Carrier Comfort Network Interface section, page 64, for more details.

DAMPER ACTUATORS Ð The PIC processor can activate

a®eld-installed modulating exhaust/relief damper. This is achieved by wiring the factory-supplied damper actuator in series with the factory-supplied and ®eld-installed mixing box damper actuator.

The PIC processor can also activate a ®eld-installed damper actuator mounted in a ®eld-supplied mixing box. These ac- tuators are available from the factory when ordered as an option with the unit.

See Table 9 for recommended actuators.

NOTE: The actuator selected must be capable of receiving a 4 to 20 mA signal and must have a total impedance of less than 250 ohms. Wire should be 20 gage minimum, twisted- pair type and rated for the application.

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Contents Installation, Operation, Start-Up Instructions ContentsInstallation Safety ConsiderationsGeneral Page ABX IGVPIC VAVDirect Expansion FMB Ð Filter Mixing BoxMXB Ð Mixing Box Normally ClosedControl Box for Remote Mounting AFS AotcAQ1 AQ2PIC Section Control Box Component Arrangements, 39L PIC Section Control Box Component Arrangement, 39NX Sizes PIC Section Control Box Component Arrangement, 39NX Sizes Page Input and Output Points AddressUnit Wiring Schematic, 39L Sizes 03-35 115 v, Typical Unit Wiring Schematic, 39L Sizes 03-35 115 v, Typical Unit Wiring Schematic, 39L Sizes 03-35 115 v, Typical Unit Wiring Schematic, 39L Sizes 03-35 115 v, Typical Unit Wiring Schematic, 39L Sizes 03-35 115 v, Typical Unit Wiring Schematic, 39L Sizes 03-35 115 v, Typical Unit Wiring Schematic, 39NX Sizes 07-21 115 v, Typical Unit Wiring Schematic, 39NX Sizes 07-21 115 v, Typical Unit Wiring Schematic, 39NX Sizes 07-21 115 v, Typical Unit Wiring Schematic, 39NX Sizes 07-21 115 v, Typical Unit Wiring Schematic, 39NX Sizes 07-21 115 v, Typical Unit Wiring Schematic, 39NX Sizes 07-21 115 v, Typical Unit Wiring Schematic, 39NX Sizes 26-92 115 v, Typical Unit Wiring Schematic, 39NX Sizes 26-92 115 v, Typical Unit Wiring Schematic, 39NX Sizes 26-92 115 v, Typical Unit Wiring Schematic, 39NX Sizes 26-92 115 v, Typical Unit Wiring Schematic, 39NX Sizes 26-92 115 v, Typical Unit Wiring Schematic, 39NX Sizes 26-92 115 v, Typical Page Page Page Page Page Page Junction Box Connections for Optional Remote Control Box Terminal SignalValve Assembly Typical Hot Water Valve Wiring Chilled Water Valve Wiring Duct Static Pressure ProbeNema Ð National Electrical Manufacturers Association Resistance Temperature OhmsMixed-Air Temperature Sensor HH79NZ021 Installation Enthalpy Control Settings Supply/Return Air Temperature Sensor HH79NZ019COI L Comno Wall-Mounted Relative Humidity Sensor Fig Duct-Mounted Relative Humidity Sensor Locations Air¯ow Switch P/N HK06WC030 CO2 Sensor Accessories CGCDXSEN002A00CGCDXSEN003A00 CGCDXGAS001A00Air Quality CO2 Sensor Wall Mount Version Shown CO2 Concentration PPMOAC Pressure Transducers Recommended Sensor Device Wiring Manufacturer Part NumberProcessor Sensor Module PIN noField Wiring of Sensors Recommended Actuators StrokeField-Supplied Mixing Box Actuator Signal Wiring HAND/OFF/AUTO Switch Tran Ð Transformer High-Pressure Switch Remove JumperEvacuation Supply Fan Contactor Fire Shut Down Terminal BlockPres Single-Pole, Double-Throw Spdt Relay Wiring of Device Under Discrete Output Temperature Control Wiring of Two-Stage Humidication Control Relays Duct Mounted Relative Humidity Transmitter Wiring Air Quality and Oavp Sensor Wiring Wiring of Return Fan Volume Control With IGVs Pulse-Type Meter Wiring Control SystemCCN Communication Wiring AHU Air Handling UnitRelay Module Outdoor Air ThermostatFunction USE Keys Local Interface Device Key UsageOperative USE Keys Status History Schedule Service Set Point Test Functions and SubfunctionsSUB Function Number OavpControl Operation Operation Keyboard Display Description EntryKeyboard Directory StatusInputs VAV Direct Expansion Oavp Ð Outside Air Velocity Pressure AIRQUAL1 SET Point Quick Test History Example 2 Ð Reading Current Operating Modes Example 1 Ð Reading Alarm CodesKeyboard Display Comments Entry Response Alarms Display CodesForce States Display DescriptionState of Items Controlled Example 3 Ð Forcing An Input ValueExample 4 Ð Forcing An Output Value Relay StagesExample 5 Ð Using Quick Test Example 6 Ð Logging On and Logging Off Service FunctionKeyboard Display Comments Entry Response To LOG on To LOG OFFService Conguration Ranges and Defaults Analog Output Temperature Control Example 8 Ð Conguration of Measurements Example 7 Ð Reading and Changing Factory CongurationsExample 9 Ð User Congurations Example 10 Ð Conguration of Heating Coil Example 11 Ð Conguration of Space Temperature ResetExample 12 Ð Conguration of Loadshed Example 15 Ð Conguration of Analog Temperature Control Example 14 Ð Conguration of Alarm LimitsExample 13 Ð Conguration of Fan Tracking Example 16 Ð Conguration of Discrete Temperature Control Example 17 Ð Service History CongurationExample 18 Ð Service/Maintenance Alarm Conguration Set Point Ranges and DefaultsExample 22 Ð Setting Daylight Savings Time Example 21 Ð Setting of Time and DateExample 20 Ð Reading and Changing System Set Points Example 23 Ð Setting of Holidays Schedule I Sample Time ScheduleKeyboard Display Comment Entry Response Programming Period Example 24 Ð Using the Schedule FunctionPeriod 1 Dene schedule period For this example, Period 6 is used for holiday only Constant Volume and Variable Air Volume Units Control Operating SequencePage Page MAT Ð Mixed-Air Temperature OAT Ð Outdoor-Air TemperatureIAQ Indoor-Air QualityConstant Volume Units Only CCV Ð Cooling Coil Valve RAT Ð Return-AirDX Submaster Gain Control Operation Variable Air Volume Units Only Page Outside Air OACConstant Outside Air Oavp Ð Outside Air Velocity Pressure102 START-UP Initial CheckTest of Input Signals Keyboard Display COMMENTS/ACTION Entry ResponseKeyboard Display COMMENTS/ACTION Entry Response FSD NRM FollowingTest of Output Signals For Variable Air Volume UnitsTest of Output Options Using Option Module Electric Heater TestControl Loop Checkout Direct Expansion DX Cooling TestDigital DC Volt Meter vs DC Milliamp Meter DC Milliamps DC VoltageValve Troubleshooting Recommended Gain Starting ValvesTypical Linkages Example 25 Ð Forcing An OutputIGV % HCV 10/FORCEDExample 26 Ð Heating Coil Valve Test Way Normally Open Control Module TroubleshootingExit Test Dsio Unit Troubleshooting Problem Possible Cause Corrective ActionHCV, CCV, IGV OAC malfunctioning IAQ featuresMalfunctioning Metric Conversion Chart

39L specifications

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