Carrier 39L specifications Control Module Troubleshooting, Exit Test

Page 111

TO REASSEMBLE ACTUATOR TO VALVE BODY:

All 2-way normally-open valves:

1.Push the valve stem completely down and close seat valve.

NOTE: It may be necessary to shut down the system pump to ensure valve stem is closed.

2.Loosen locknut and screw stem extension down fully on valve stem to adjust stem extension for proper closure.

3.Attach actuator to valve linkage mounting bracket and secure with self-tapping screws.

4.Make all necessary electrical connections.

5.Electrically power actuator by turning circuit breaker to ON. Turn HOA switch to OFF position. Perform the heat- ing coil valve quick test to stroke the actuator to its full extended position. See Example 26. Leave the unit in test mode and proceed to Step 6.

6.Screw the stem extension up until its hole aligns with the hole in the actuator piston.

7.Screw the stem extension 2 full turns farther up into the actuator piston.

8.While still in Quick Test, press to retract actuator piston and align holes to insert connecting pin. Exit Quick Test.

9.Tighten the locknut against the stem extension.

Example 26 Ð Heating Coil Valve Test

(2-Way Normally Open)

KEYBOARD

DISPLAY

COMMENTS

ENTRY

RESPONSE

 

 

OUTPUTS

Entering factory test of outputs

 

HCV %

Entering heating coil valve test

 

HCV TEST

The hot water/steam valve strokes

 

to 100%

 

 

 

EXIT TST

Exit Quick Test

 

TST CMPL

Test completed

 

 

 

NOTE: For more complete instructions on the Quick Test procedure, see Quick Test in the Start-Up section, pages 103-108.

All 2-way normally-closed and 3-way mixing valves:

1.Raise the valve stem completely up and close valve seat.

NOTE: It may be necessary to shut down the system pump to ensure valve stem is closed.

2.Loosen locknut and screw stem extension down fully on valve stem to adjust stem extension for proper closure.

3.Attach actuator to valve linkage mounting bracket and secure with self tapping screws. The actuator should be fully retracted with no power or signal present.

4.Screw the stem extension up until its hole aligns with the hole in the actuator piston.

5.Screw the stem extension down 2 full turns away from the actuator piston.

6.Turn circuit breaker to ON. Electrically connect the ac- tuator. Using the cooling coil valve quick test, extend the actuator piston to align holes and insert the connecting pin. See Example 27. After inserting connecting pin, exit Quick Test.

7.Tighten the locknut against the stem extension to secure to stem.

Example 27 Ð Cooling Coil Valve Quick Test

(2-Way Normally Closed)

KEYBOARD

DISPLAY

COMMENTS

ENTRY

RESPONSE

 

 

 

OUTPUTS

Entering factory test of outputs

 

HCV %

Scroll past heating coil valve test

 

 

by pressing

key

 

CCV %

Cooling coil valve test

 

CCV TEST

Cooling coil valve actuator piston

 

extends (Insert connecting pin)

 

 

 

EXIT TEST

Exit factory test

 

 

TST CMPL

Test completed

 

 

 

 

 

NOTE: For more complete instructions concerning the Quick Test pro- cedure, see Quick Test in the Start-Up section, pages 103-108.

CONTROL MODULE TROUBLESHOOTING

To prevent electrical shock and equipment damage, turn off all power to the PIC control box before removing or replacing modules.

General Ð The processor module (PSIO master), option module (PSIO slave) and relay module (DSIO) all perform continuous diagnostic evaluations of the condition of the hard- ware. Proper operation of these modules is indicated by LEDs (light-emitting diodes). The PSIO LEDs are located on the top of the module, and the DSIO LEDs are on the front of the module. See Fig. 83.

RED STATUS LED Ð If the LED is blinking continuously at a one-second rate, the module is operating normally. If the LED is lighted continuously, there is a problem that may re- quire replacement of the module.

If the red LED is off continuously, check the power sup- ply to the module. If there is no input power, check the fuses. If a fuse is blown, check for shorted wiring or for a non- functional module. If the fuses are not blown, check for a bad transformer or open secondary of the transformer.

GREEN COMMUNICATIONS LEDs Ð On a PSIO mod- ule, the green LED closest to the COMM connectors indi- cates the status of communications between modules. When used, the other green LED on the module indicates the status of external CCN communications.

The green LED that indicates module communications should blink continuously whenever the power is on. If the green LED is not blinking, check the red LED. If the red LED is normal, check the module address switches as shown in Fig. 82. The correct addresses follow:

Processor Module (PSIO Master)

Ð 01 (factory default)

Option Module (PSIO Slave)

Ð 31

High-Voltage Relay Module

Ð 19

(DSIO for Electric Heat

 

or DX Control)

 

High-Voltage Relay Module

Ð 49

(DSIOs for Electric Heat

 

and DX Control)

 

If all of the preceding modules except the processor mod- ule indicate communication failure, check the COMM plug on the processor (PSIO master) module for proper seating and check the communications bus wiring as shown in Fig. 69 on page 65. If the condition persists even though plug connections and wiring are correct, replace the proces- sor module as described in the Module Replacement section.

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Contents Contents Installation, Operation, Start-Up InstructionsSafety Considerations InstallationGeneral Page VAV ABXIGV PICNormally Closed Direct ExpansionFMB Ð Filter Mixing Box MXB Ð Mixing BoxControl Box for Remote Mounting AQ2 AFSAotc AQ1PIC Section Control Box Component Arrangements, 39L PIC Section Control Box Component Arrangement, 39NX Sizes PIC Section Control Box Component Arrangement, 39NX Sizes Page Address Input and Output PointsUnit 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 Terminal Signal Junction Box Connections for Optional Remote Control BoxValve Assembly Typical Hot Water Valve Wiring Duct Static Pressure Probe Chilled Water Valve WiringNema Ð National Electrical Manufacturers Association Ohms Resistance TemperatureMixed-Air Temperature Sensor HH79NZ021 Installation Supply/Return Air Temperature Sensor HH79NZ019 Enthalpy Control SettingsCOI L Comno Wall-Mounted Relative Humidity Sensor Fig Duct-Mounted Relative Humidity Sensor Locations Air¯ow Switch P/N HK06WC030 CGCDXGAS001A00 CO2 Sensor AccessoriesCGCDXSEN002A00 CGCDXSEN003A00CO2 Concentration PPM Air Quality CO2 Sensor Wall Mount Version ShownOAC Pressure Transducers Sensor Module PIN no Recommended Sensor Device WiringManufacturer Part Number ProcessorField Wiring of Sensors Stroke Recommended ActuatorsField-Supplied Mixing Box Actuator Signal Wiring Fire Shut Down Terminal Block HAND/OFF/AUTO Switch Tran Ð TransformerHigh-Pressure Switch Remove Jumper Evacuation Supply Fan ContactorPres 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 Control System Pulse-Type Meter WiringCCN Communication Wiring Outdoor Air Thermostat AHUAir Handling Unit Relay ModuleLocal Interface Device Key Usage Function USE KeysOperative USE Keys Oavp Status History Schedule Service Set Point TestFunctions and Subfunctions SUB Function NumberOperation Keyboard Display Description Entry Control OperationStatus Keyboard DirectoryInputs VAV Direct Expansion Oavp Ð Outside Air Velocity Pressure AIRQUAL1 SET Point Quick Test History Example 1 Ð Reading Alarm Codes Example 2 Ð Reading Current Operating ModesKeyboard Display Comments Entry Response Display Description AlarmsDisplay Codes Force StatesRelay Stages State of Items ControlledExample 3 Ð Forcing An Input Value Example 4 Ð Forcing An Output ValueTo LOG OFF Example 5 Ð Using Quick TestExample 6 Ð Logging On and Logging Off Service Function Keyboard Display Comments Entry Response To LOG onService Conguration Ranges and Defaults Analog Output Temperature Control Example 7 Ð Reading and Changing Factory Congurations Example 8 Ð Conguration of MeasurementsExample 9 Ð User Congurations Example 11 Ð Conguration of Space Temperature Reset Example 10 Ð Conguration of Heating CoilExample 12 Ð Conguration of Loadshed Example 14 Ð Conguration of Alarm Limits Example 15 Ð Conguration of Analog Temperature ControlExample 13 Ð Conguration of Fan Tracking Set Point Ranges and Defaults Example 16 Ð Conguration of Discrete Temperature ControlExample 17 Ð Service History Conguration Example 18 Ð Service/Maintenance Alarm CongurationExample 21 Ð Setting of Time and Date Example 22 Ð Setting Daylight Savings TimeExample 20 Ð Reading and Changing System Set Points Schedule I Sample Time Schedule Example 23 Ð Setting of HolidaysExample 24 Ð Using the Schedule Function Keyboard Display Comment Entry Response Programming PeriodPeriod 1 Dene schedule period For this example, Period 6 is used for holiday only Control Operating Sequence Constant Volume and Variable Air Volume UnitsPage Page Indoor-Air Quality MAT Ð Mixed-Air TemperatureOAT Ð Outdoor-Air Temperature IAQConstant Volume Units Only RAT Ð Return-Air CCV Ð Cooling Coil ValveDX Submaster Gain Control Operation Variable Air Volume Units Only Page Oavp Ð Outside Air Velocity Pressure Outside AirOAC Constant Outside Air102 Initial Check START-UPKeyboard Display COMMENTS/ACTION Entry Response Test of Input SignalsFollowing Keyboard Display COMMENTS/ACTION Entry Response FSD NRMFor Variable Air Volume Units Test of Output SignalsElectric Heater Test Test of Output Options Using Option ModuleDC Milliamps DC Voltage Control Loop CheckoutDirect Expansion DX Cooling Test Digital DC Volt Meter vs DC Milliamp MeterRecommended Gain Starting Valves Valve TroubleshootingHCV 10/FORCED Typical LinkagesExample 25 Ð Forcing An Output IGV %Control Module Troubleshooting Example 26 Ð Heating Coil Valve Test Way Normally OpenExit Test Dsio Problem Possible Cause Corrective Action Unit TroubleshootingHCV, CCV, IGV IAQ features OAC malfunctioningMalfunctioning Metric Conversion Chart

39L specifications

The Carrier 39L is a cutting-edge air conditioning unit designed for both residential and commercial applications, providing exceptional cooling and heating performance. Equipped with advanced technologies, this system ensures optimal climate control while maintaining energy efficiency.

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Overall, the Carrier 39L is a versatile, efficient, and user-friendly air conditioning solution. Its blend of advanced technologies, energy-saving capabilities, and robust design makes it an ideal choice for those seeking reliable climate control in their spaces. Whether for residential comfort or commercial necessity, the Carrier 39L stands out as a leader in modern air conditioning.
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