Carrier 39L specifications

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Mount the remote control box as follows:

1.Loosen and remove the 4 nuts securing the control panel in the control box.

2.Remove the control panel from the box; set the panel and nuts aside for reassembly later.

3. Mount the control box to the Unistrut support using ®eld- supplied fasteners.

4.Locate, mark, and drill pilot holes on the top of the box for each of the following:

·Motor starter wiring

·Actuator and sensor wires to fan section junction box

·Supply power wires (ac)

·Valve wiring or tubing (water valves, ®eld-supplied sensors, or other devices)

5.Expand the pilot holes as required. Recommended sizes are as follows:

·Motor starter wiring Ð 3¤4 in. (5 wires)

·Actuator and sensor wires to fan section junction box Ð 3¤4 in. to 1 in. (number of wires and hole di- ameter determined by application)

·Supply power wires (ac) Ð 1¤2 in. or 3¤4 in.

·Valve wiring or tubing Ð size as required

Fan section panels are provided with pilot holes that can be drilled or punched to accomodate an electrical conduit for the remote control box wiring. Where possible, install the conduit in a panel that will not be removed, such as the discharge panel. See Fig. 4.

REMOTE CONTROL BOX CONDENSATE PREVEN- TION Ð When the remote control box is installed, precau- tions must be taken to prevent condensation from forming inside the junction box mounted in the unit's supply fan sec- tion. Standard installation practice is to mount the remote control box adjacent to the air handling unit and then to en- close the Class II wiring in ¯exible conduit between the con- trol box and the junction box in the fan section.

The sheet metal housing of the control box is not airtight, therefore warm, moist air can migrate through the ¯exible conduit to the junction box in the fan section. Condensate can form inside the junction box and possibly on the termi- nal lugs.

To prevent moist air from migrating through the conduit, seal the control wires inside the conduit at the remote con- trol box enclosure. See Fig. 4. Use a nonconductive, non- hardening sealant. Permagum (manufactured by Schnee Morehead) or sealing compound, thumb grade (manufac- tured by Calgon), are acceptable materials.

Make Electrical Connections Ð 39L and 39NX units have internal control wiring for the operation of the PIC sec- tion and its control devices. The control system requires a dedicated 120 vac or 230 vac (50 or 60 Hz) power circuit capable of providing a minimum of 10 amps (but not greater than 20 amps) to the control box. The actual number of con- trols on one power source depends on the installation and power circuit requirements. Do not run PIC power wiring in the same conduit as sensor wiring or control wiring of ®eld- installed devices.

IMPORTANT: To ease installation, control wiring is located on the service side of the unit with electrical connectors provided at all unit separation points. If a unit is separated into pieces for installation, rejoin all connectors in their original alpha-numeric sequence upon reassembly. Connectors for vertical fan sections that are shipped out of the normal operating position must also be joined at ®nal assembly.

For units with an integral PIC section, all unit factory con- trol wiring is internal. Only a small number of wires must be ®eld-installed. All internal wiring consists of plenum wires which enter the rear of the control box through sealed ®t- tings. Control wiring is 18 to 20 gage, 2-conductor twisted pair.

The electrical power disconnect and fan motor starter are ®eld-supplied and installed. Connections are provided in the control box to wire a ®eld-supplied HOA (HANDS/OFF/ AUTOMATIC) switch. If an HOA switch is used, it must be ®eld-installed in the supply and return fan motor starter cir- cuit. The factory-wired high-pressure switch (variable air vol- ume only) and low-temperature thermostat options are en- ergized when the supply fan circuit is powered.

See Fig. 5-7 for control box component arrangements and Fig. 8 for fan motor wiring. PIC input and output points are listed in Table 1. Consult the wiring diagram located in the control box or Fig. 9-12 for further details.

Power is present in the PIC control box in the motor starter circuit even when the dedicated power to the PIC control box is off.

The supply and return fan starter circuits are independent from each other. Either circuit and its related control box interface can have 24 vac, 120 vac, or 240 vac power.

All options that require a factory-installed transformer are fused with 3.2 amp fuses on the secondary of each transformer.

When the control box is shipped separately for remote mount- ing, all unit wiring terminates in a junction box located in the fan section. Refer to Fig. 12 for the applicable wiring diagram and Table 2 for junction box connections.

If the unit is provided with a factory-installed smoke con- trol option, refer to the section titled Field-Wiring Connec- tions, Smoke Control Option, page 54.

All PIC electrical components are UL (Underwriters' Labo- ratories) listed. The electronic modules are approved under UL HVAC Equipment Standard 873. PIC units are listed and labeled by ETL (Engineering Testing Laboratory) to comply with UL Standard 1995 for heating and cooling units, and comply with NFPA (National Fire Protection Association) Standard 90A.

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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.

One of the standout features of the Carrier 39L is its inverter technology. This innovation allows the system to adjust its compressor speed based on the ambient temperature, which results in a significant reduction in energy consumption. By operating at varying capacities rather than a fixed output, the 39L can maintain a consistent temperature, enhancing comfort while lowering electricity bills.

The Carrier 39L also includes a high-efficiency air filtration system, designed to capture dust, allergens, and other airborne particles. This not only improves indoor air quality but also promotes a healthier living environment. The filtration system is complemented by anti-bacterial treatment, ensuring that the air circulated within your space is both clean and refreshing.

In terms of design, the Carrier 39L boasts a sleek and compact form factor, making it easy to integrate into various settings, from homes to offices. Its quiet operation is another notable feature, as it minimizes noise levels, allowing occupants to enjoy a serene atmosphere without disruptive sound.

Further enhancing convenience, the Carrier 39L comes equipped with smart connectivity options. Users can control the unit remotely via a smartphone app, making it easy to adjust settings, program schedules, and monitor energy usage from anywhere. This feature not only improves user experience but also supports energy-saving practices.

Durability is also a key characteristic of the Carrier 39L. Constructed with high-quality materials and coated with corrosion-resistant treatments, the unit is built to withstand various environmental conditions. This ensures long-lasting performance and reduces the need for frequent maintenance.

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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