Carrier 39L State of Items Controlled, Example 3 Ð Forcing An Input Value, Relay Stages

Page 80

Table 15 Ð State of Items Controlled

MODE

(DISPLAY

RETURN

SUPPLY

OUTDOOR-

RETURN-

EXHAUST

SUPPLY FAN

RETURN

HEAT

ELECTRIC

 

CODE)

FAN

FAN

AIR

AIR

DAMPER

INLET GUIDE

FAN IGV

INTERLOCK

HEAT ALL

 

 

 

 

DAMPER

DAMPER

 

VANES (IGV)

 

RELAY

STAGES

Pressurization

(34)

Off

On

Open

Close

Close

Open to

Close

On

Off

 

 

 

 

 

 

 

Static Pressure

 

 

 

 

 

 

 

 

 

 

Set Point

 

 

 

Purge

(36)

On

On

Open

Close

Open

Open to

Open to

On

Off

 

 

 

 

 

 

 

Static Pressure

D cfm

 

 

 

 

 

 

 

 

 

Set point

 

 

 

Evacuation

(35)

On

Off

Close

Close

Open

Close

Open

Off

Off

Fire Shutdown

(37)

Off

Off

Close

Open

Close

Close

Close

Off

Off

 

 

 

 

 

 

 

 

 

 

 

(Set point) Ð This subfunction displays the current operating system set points.

To view set points, depress , then use the key to display the occupied heat set point. Continue to depress to display all the various system set points. Table 13 shows the order of the various set points.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

(Inputs) Ð The inputs subfunction displays the read-

ings at the various temperature sensors, fan status, static pres- sure sensors, enthalpy switch, and freezestat. It also allows the outside-air temperature sensor, enthalpy switch, return- air relative humidity sensor, outside-air relative hu- midity sensor, and ®lter status to be forced to a user deter- mined value or status. The forced value overrides the value that the control system actually reads. This permits opera- tion in the event of a faulty sensor.

To read a sensor, enter , then scroll to the de-

sired sensor reading using the key. To force an input, see Example 3. Table 13 shows the order of the readouts.

Example 3 Ð Forcing An Input Value

KEYBOARD

DISPLAY

COMMENTS

ENTRY

RESPONSE

 

 

INPUTS

System inputs

 

 

Scroll past:

 

SPT X

Space temperature

 

SAT X

Supply air temperature

 

RT X

Return air temperature

 

MAT X

Mixed air temperature

 

OAT 60

Outside air temperature

 

 

Outside air temperature value

8 0

OAT 80/FORCED

forced to 80. NOTE: Forced

value toggles between value

 

 

 

 

and word forced

 

 

Outside air temperature

 

OAT 60

forced value removed.

 

 

Display no longer ¯ashes

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

(Outputs) Ð The output subfunction displays or

forces the output value percentage of the inlet guide vanes, mixed air damper and heating and cooling valves. It also displays or forces the ON/OFF status of the supply fan and heat interlock relay, displays the status of electric heat stages, and displays optional output status for return fan volume con- trol, analog output temperature control, discrete output tem- perature control, discrete output time clock, and humidi®er stages.

To read a system output value, enter , then scroll

to the desired output using the key. To force a system

output value, see Example 4. Table 13 shows the order of the output values.

Example 4 Ð Forcing An Output Value

KEYBOARD

DISPLAY

COMMENTS

ENTRY

RESPONSE

 

 

OUTPUTS

System Outputs

 

 

Scroll past:

 

IGV X

Inlet guide vanes

 

MIXD X

Mixed air damper

 

HCV X

Heating coil valve

 

CCV X

Cooling coil valve

 

SF OFF

Supply fan off

 

 

Supply fan forced ON.

 

SF ON/FORCED

NOTE: Supply fan forced

 

value toggles between value

 

 

(SF ON) and word FORCED

 

SF OFF

Supply fan forced value re-

 

moved. Display no longer ¯ashes

 

 

HISTORY FUNCTION

Ð Displays the 9 latest alarms generated by the

unit in the order of their occurrence. If 9 alarms are dis- played, the occurrence of a 10th alarm shifts the ®rst alarm off the display.

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

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Contents Installation, Operation, Start-Up Instructions ContentsGeneral Safety ConsiderationsInstallation 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 ThermostatOperative USE Keys Local Interface Device Key UsageFunction 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 Keyboard Display Comments Entry Response Example 1 Ð Reading Alarm CodesExample 2 Ð Reading Current Operating Modes 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 9 Ð User Congurations Example 7 Ð Reading and Changing Factory CongurationsExample 8 Ð Conguration of Measurements Example 12 Ð Conguration of Loadshed Example 11 Ð Conguration of Space Temperature ResetExample 10 Ð Conguration of Heating Coil Example 13 Ð Conguration of Fan Tracking Example 14 Ð Conguration of Alarm LimitsExample 15 Ð Conguration of Analog Temperature Control 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 20 Ð Reading and Changing System Set Points Example 21 Ð Setting of Time and DateExample 22 Ð Setting Daylight Savings Time Example 23 Ð Setting of Holidays Schedule I Sample Time SchedulePeriod 1 Dene schedule period Example 24 Ð Using the Schedule FunctionKeyboard Display Comment Entry Response Programming 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/FORCEDExit Test Control Module TroubleshootingExample 26 Ð Heating Coil Valve Test Way Normally Open Dsio Unit Troubleshooting Problem Possible Cause Corrective ActionHCV, CCV, IGV Malfunctioning IAQ featuresOAC malfunctioning 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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