Carrier 39L specifications Example 20 Ð Reading and Changing System Set Points

Page 88

Reading and Changing Set Points Ð Example 20 shows how to read and change system set points. Other set points can be changed by following the same procedure. Refer to Table 13 for the display sequence of set points in each sub- function.To adjust any parameter after enabling the func-

tion, press

until desired parameter is displayed. Key in

new value

and press

. If input is within the allowable

range, the display shows the parameter and new value. If the input is not within the allowable range, the old value remains displayed.

Example 20 Ð Reading and Changing

System Set Points

KEYBOARD

DISPLAY

COMMENTS

ENTRY

RESPONSE

 

 

SETPOINT

System set points

 

OHSP 68.0

Present occupied heating set point

 

 

is 68.0

 

OHSP 70.0

Key in 70 and press ENTR, display

 

 

shows new occupied heating set

 

 

point is 70, which is within the

 

 

allowable range

 

OCSP 78.0

Present occupied cooling set point

 

 

is 78.0

 

OCSP 78.0

Key in 30 and press ENTR, display

 

 

still shows occupied cooling set point

 

 

as 78.0 because 30 is not within the

 

 

allowable range. See Table 15

 

OCSP 75.0

Key in 75 and press ENTR, display

 

 

shows new occupied cooling set

 

 

point is 75.0, which is within the

 

 

allowable range

Reading and Changing Time and Date Display Ð Time is entered and displayed in 24-hour (military) time. The day of the week is entered as a number: 1 = MON, 2 = TUE...7 = SUN. The month is also entered as a number: 1 = JAN, 2 =

FEB...12 = DEC. The key is used as the colon when entering the time and date. See Example 21.

Reading and Changing Daylight Savings Time Ð Example 22 shows how to read and change daylight savings time. The month is entered as a number: 1 = January, 2 = February...12

=December. The day of week and time of day are entered as explained in Reading and Changing Time and Date Display above.

Example 21 Ð Setting of Time and Date

KEYBOARD

DISPLAY

COMMENTS

ENTRY

RESPONSE

 

 

TIME

Time display

 

 

subfunction of

 

 

set point function

 

MON 16:00

Current setting

 

 

is Monday,

 

 

4:00 pm

 

TUE 13:05

New setting of

 

 

Tuesday,

 

 

1:05 pm is

 

 

entered and

 

 

displayed

 

JAN 01 96

Current setting

 

 

is January 1,

 

 

1996

 

FEB 27 96

New setting of

 

 

February 27,

 

 

1996 is entered

 

 

and displayed

Example 22 Ð Setting Daylight Savings Time

KEYBOARD

DISPLAY

COMMENTS

 

ENTRY

RESPONSE

 

 

 

DAYLIGHT

Daylight savings time ®eld

 

 

con®guration of set point

 

 

function

 

ENM X

Month when daylight savings

 

 

time begins

 

ENM 4

Daylight savings time

 

 

con®gured to start Month 4

 

 

(April)

 

END X

Day of month when daylight

 

 

savings time begins

 

END 16

Daylight savings time

 

 

con®gured to start on the

 

 

16th of the month

 

ENT X

Time of day when daylight

 

 

savings time begins

 

ENT 2.00

Daylight savings time

 

 

con®gured to start at 2:00 am

 

 

on the 16th of April

 

LVM X

Month when daylight savings

 

 

time ends

 

LVM 11

Daylight savings time

 

 

con®gured to end Month 11

 

 

(November)

 

LVD X

Day of month when daylight

 

 

savings time ends

 

LVD 12

Daylight savings time

 

 

con®gured to end on the 12th

 

 

of November

 

LVT X

Time of day when daylight

 

 

savings time ends

 

LVT 2.00

Daylight savings time

 

 

con®gured to end at 2:00 am

 

 

on November 12

 

88

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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

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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