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5284792-UIM-A-0317

Johnson Controls Unitary Products

FAULT/STATUS CODE OUTDOOR SYSTEM TROUBLE SHOOTING

TABLE 7:

Outdoor Control Faults/Status Code Display

Outdoor Control Description

LED

Outdoor Display Text

Left Triangle

Indication

(Outdoor Screen)

Right Triangle

Indication

(Outdoor Screen)

Control Fault

Outdoor Control Failure

RED

(solid)

CONTROL FAILURE

–

Operational Faults

High-pressure switch fault (not in lockout yet)

RED

(solid)

HPS - OPEN

–

System in high-pressure switch lockout (last

mode of operation was normal compressor)

RED

(solid)

HPS SOFT LOCKOUT - NORMAL

–

System in high-pressure switch lockout (last

mode of operation was normal compressor)

RED

(solid)

HPS HARD LOCKOUT - NORMAL

–

System in high-pressure switch lockout (last

mode of operation was defrost)

RED

(solid)

HPS SOFT LOCKOUT - DEFROST

–

System in high-pressure switch lockout (last

mode of operation was defrost)

RED

(solid)

HPS HARD LOCKOUT - DEFROST

–

Low Voltage (<19 VAC)

RED

(solid)

LOW VOLTAGE – BELOW 19VAC

–

Inverter Control Communications Fault

RED

(solid)

COMMUNICATIONS LOST -

INVERTER DRIVE

–

JCI RS-485 Communications Lost

RED

(solid)

COMMUNICATIONS LOST –

SYSTEM MASTER

–

Repair part tonnage selection does not match

the stored value programmed in the JCI factory

RED

(solid)

INVERTER CONFIGURATION ERROR

–

Inverter Model Number installed does not

match the stored tonnage in EEPROM

RED

(solid)

INVERTER MODEL INSTALLATION

ERROR – HARD LOCKOUT

–

Required Sensor or Switch Faults

Outdoor ambient sensor failure (short)

RED

(solid)

OUTDOOR AMBIENT SENSOR -

SHORT – SOFT LOCKOUT

–

Outdoor ambient sensor failure (open)

RED

(solid)

OUTDOOR AMBIENT SENSOR –

OPEN – SOFT LOCKOUT

–

Coil sensor failure (short) not in lockout yet

RED

(solid)

COIL TEMP SENSOR - SHORT

–

Coil sensor failure (short)

RED

(solid)

COIL TEMP SENSOR -

SHORT – SOFT LOCKOUT

–

Coil sensor failure (open) not in lockout yet

RED

(solid)

COIL TEMP SENSOR - OPEN

–

Coil sensor failure (open)

RED

(solid)

COIL TEMP SENSOR -

OPEN – SOFT LOCKOUT

–

Liquid line temperature sensor failure (short)

not in lockout yet

RED

(solid)

LIQUID TEMP SENSOR -

SHORT

–

Liquid line temperature sensor failure (short)

RED

(solid)

LIQUID TEMP SENSOR -

SHORT – SOFT LOCKOUT

–

Liquid line temperature sensor failure (open)

not in lockout yet

RED

(solid)

LIQUID TEMP SENSOR - OPEN

–

Liquid line temperature sensor failure (open)

RED

(solid)

LIQUID TEMP SENSOR -

OPEN – SOFT LOCKOUT

–

Discharge temperature sensor failure (short)

RED

(solid)

DISCHARGE TEMP SENSOR -

SHORT

–

Discharge temperature sensor failure (open)

not in lockout yet

RED

(solid)

DISCHARGE TEMP SENSOR - OPEN

–

Discharge temperature sensor failure (open)

RED

(solid)

DISCHARGE TEMP SENSOR –

OPEN – SOFT LOCKOUT

–

Suction temperature sensor failure (short) not

in lockout yet

RED

(solid)

SUCTION TEMP SENSOR - SHORT

–

Suction temperature sensor failure (short)

RED

(solid)

SUCTION TEMP SENSOR –

SHORT – SOFT LOCKOUT

–

Suction temperature sensor failure (open) not

in lockout yet

RED

(solid)

SUCTION TEMP SENSOR – OPEN

–

Continued on next page.

Содержание AC21 series

Страница 1: ...minal sized matching indoor coil plus 15 feet of field supplied lines SECTION II SAFETY This is a safety alert symbol When you see this symbol on labels or in manuals be alert to the potential for personal injury Understand and pay particular attention to the signal words DANGER WARNING or CAUTION DANGER indicates an imminently hazardous situation which if not avoided will result in death or serio...

Страница 2: ...5 F or below the preferred method is to weigh in the charge For charging or checking the system charge at 55 F or below refer to the Optional Cold Weather Charging procedures near the end of SECTION VI SYSTEM CHARGE There is an Optional Cold Weather Charging accessory kit to prevent the outdoor unit from taking in cold air below 55 F The kit part number can be found in the list of accessory kits o...

Страница 3: ...DFH XQGHU FHQWHU RI FRPSUHVVRU 127 QVXUH DGHTXDWH ZDOO VXSSRUW 87 21 6SHFLDO FDUH PXVW EH WDNHQ WR DYRLG UHFLUFXODWLRQ RI GLVFKDUJH DLU WKURXJK FRQGHQVHU FRLO FIGURE 2 Alternative Installation Clearances 0 1 080 5 1 7 1 81 76 127 OHDUDQFH EHWZHHQ WZR XQLWV PD EH UHGXFHG WR PLQLPXP SURYLGHG WKH VHUYLFH DFFHVV FOHDUDQFH LV LQFUHDVHG WR PLQLPXP DQG WKH FOHDUDQFH RQ HDFK UHPDLQLQJ VLGH LV PDLQWDLQHG D...

Страница 4: ...ust be capable of sup porting the total weight of the unit including a pad lintels rails etc which should be used to minimize the transmission of sound or vibra tion into the conditioned space WALL MOUNT INSTALLATION Care must be taken to mount the outdoor unit on a solid base that is sloped to shed water secure from settlement and is isolated from the structural foundation or walls to prevent sou...

Страница 5: ...n Figure 5 Also protect all painted surfaces insulation and plastic base during brazing After braz ing cool joint with wet rag Valve can be opened by removing the service valve cap and fully insert ing a hex wrench into the stem and backing out counter clockwise until valve stem just touches the chamfered retaining wall Connect the refrigerant lines using the following procedure 1 Remove the cap a...

Страница 6: ...the valve to the vacuum pump suction to isolate the pump and hold the system under vacuum Watch the micron gauge for a few minutes If the micron gauge indicates a steady and continuous rise it s an indication of a leak If the gauge shows a rise then levels off after a few minutes and remains fairly constant it s an indication that the system is leak free but still contains moisture and may require...

Страница 7: ...trol wiring NEC Class 2 from the outdoor unit to the indoor unit and thermostat FIGURE 6 Outdoor Unit Control Box OUTDOOR DISPLAY A0770 001 ACCESS PANEL SWITCH OUTDOOR REACTOR CHOKE OUTDOOR FILTER CONTROLLER May not be used on all units LOW VOLTAGE FIELD WIRING BOX AMBIENT TEMPERATURE SENSOR HIGH VOLTAGE FIELD WIRING HIGH VOLTAGE CONDUIT PLATE GROUND LUG FIELD WIRING TERMINAL BLOCK INVERTER DRIVE ...

Страница 8: ... the one that best reflects the out door environment where the conditioned space is located This selec tion adjusts the how the indoor blower and the compressor work together to manage temperature and humidity Additional fine tune adjustments are available using the HxTM thermostat Refer to the HxTM thermostat manual for additional detail The proper airflow is determined by the main outdoor contro...

Страница 9: ...HARGE will display on the banner with the appropriate response dependent upon the OEM s predeter mined values user may press Select when the banner displays ADD CHARGE or REMOVE CHARGE The display will indicate ACCEPTED for 5 seconds and return to the example defined in Step 1 However if the system does meet the charge requirements defined by the OEM the outdoor display will indicate the below tex...

Страница 10: ...recent system fault and or event that is stored in memory The second system fault will not be displayed but will be stored in memory For example see Table 4 Status Code Display The main control board contains 2 LED s for status and fault display as shown Figure 10 The control will provide a status code indicating the state of the system using the Yellow LED as detailed in Table 5 The Red LED indic...

Страница 11: ...s defined in 1 3 in the banner The control will indicate ASCD TIMER ACTIVE and display it as the highest priority over all of the below defined active modes if the ASCD Timer is currently active A Will ONLY Display the Active Condition ASCD TIMER ACTIVE Only present when the ASCD Timer is Active DEMAND RESPONSE ACTIVE FACTORY RUN TEST ACTIVE REPAIR HEAT HP ACTIVE REPAIR COOL HP ACTIVE REPAIR COOL ...

Страница 12: ...m shall display the previously saved configuration setting s Not the Default setting s unless the saved selection was in fact the default selection Operational Mode The system will display Inverter profile and revers ing valve dependent unit tonnage when the user selects Operational Mode AC TABLE 6 Outdoor Display Menu Structure MAIN LAYER SECOND LAYER THIRD LAYER BASE LAYER EQUIPMENT STATUS COMMA...

Страница 13: ...INVERTER MODEL INSTALLATION ERROR HARD LOCKOUT Required Sensor or Switch Faults Outdoor ambient sensor failure short RED solid OUTDOOR AMBIENT SENSOR SHORT SOFT LOCKOUT Outdoor ambient sensor failure open RED solid OUTDOOR AMBIENT SENSOR OPEN SOFT LOCKOUT Coil sensor failure short not in lockout yet RED solid COIL TEMP SENSOR SHORT X Coil sensor failure short RED solid COIL TEMP SENSOR SHORT SOFT ...

Страница 14: ... RED solid LOW SUCTION PRESSURE SOFT LOCKOUT X Low suction pressure RED solid LOW SUCTION PRESSURE HARD LOCKOUT X Wiring Related Faults W and O signal received in HP mode RED solid W O INPUTS HP MODE SOFT LOCKOUT Inverter Drive Faults Multiple Inverter Faults RED solid MULTIPLE INVERTER FAULTS SOFT LOCKOUT Control Events O signal received in AC mode Yellow solid O INPUT AC MODE W and O signal rece...

Страница 15: ...ance RED solid COMPRESSOR PHASE CURRENT IMBALANCE INVERTER DRIVE Microelectronic Fault RED solid MICROELECTRONIC FAULT INVERTER DRIVE Power Module Temp Low or Sensor Open Fault RED solid POWER MODULE TEMP LOW SENSOR OPEN INVERTER DRIVE AC Input Current Foldback Timeout Yellow solid AC INPUT CURRENT FOLDBACK INVERTER DRIVE Power Module Temp High Yellow solid POWER MODULE HIGH TEMP INVERTER DRIVE PF...

Страница 16: ... UIM A 0317 16 Johnson Controls Unitary Products FIGURE 12 2 Ton Inverter Drive LED Location FIGURE 13 3 4 Ton Inverter Drive LED Location FIGURE 14 5 Ton Inverter Drive LED Location OO V DUH EHQHDWK WKH SODWH ...

Страница 17: ...ower before servicing Wait 2 minutes to ensure that drive capacitors are discharged before servicing Use compressor with grounded system only Molded electrical plug must be used for connection to compressor BURN HAZARD Failure to follow these warnings could result in serious personal injury or property damage Ensure that materials and wiring do not touch high temperature areas of the compressor Pe...

Страница 18: ... side compressor side 2 Check the compressor motor windings Microelectronic fault EEPROM fault 1 Check the DC bus voltage 187VDC 2 Power cycle the drive 3 If problem persists replace the drive Power module temp low or sensor open fault Temperature sensing device on the drive are possibly defective If problem persists replace the drive DC Bus Voltage Low 1 Check the line voltage if it is 187VAC 2 C...

Страница 19: ...ed for 5 sec onds a low suction pressure fault is recognized regardless of a bypass time SECTION IX INSTRUCTING THE OWNER Assist the owner with registering the unit warranty using the warranty card included with the unit or preferably online at www upgproductregistration com It is strongly recommended to com plete a startup sheet showing the critical readings of the unit at the time of commissioni...

Страница 20: ...TEMP SENSOR TB TERMINAL BLOCK XFMR TRANSFORMER BLK BLACK BLU BLUE BLU WHT BLUE w WHITE STRIPE BRN BROWN GRN GREEN PUR PURPLE RED RED RED WHT RED w WHITE STRIPE WHT WHITE YEL YELLOW YEL PINK YELLOW w PINK STRIPE 5295812 UWD C 0217 FERRITE RING CHOKE DS LTS AMB CTS R C P6 P7 P8 P10 P2 P3 P1 P5 P4 A B C A R B C G S V G S V DTS DPT SPT STS RV DR C O Y OD FAN RS485 COMM EEV COMM RS485 COMM 3A COMPRESSO...

Страница 21: ... WITH THIS UNIT MUST BE REPLACED IT MUST BE REPLACED WITH 105 C THERMOPLASTIC OR ITS EQUIVALENT 1 2 AMB AMBIENT TEMP SENSOR DPT DISCHARGE PRESSURE DR DEMAND RESPONSE DS DISPLAY SWITCH DTS DISCHARGE TEMP SENSOR HPS HIGH PRESS SWITCH LTS LIQUID TEMP SENSOR SPT SUCTION PRESSURE STS SUCTION TEMP SENSOR TB TERMINAL BLOCK XFMR TRANSFORMER BLK BLACK BLU BLUE BLU WHT BLUE w WHITE STRIPE BRN BROWN GRN GREE...

Страница 22: ...5284792 UIM A 0317 22 Johnson Controls Unitary Products NOTES ...

Страница 23: ...lts AC 230 volt AC Measured voltage L1 to L2 Total amperes L1 L2 Compressor amperes L1 L2 Measured voltage R and C outdoor unit control board Air Flow Setup Cooling Supply static inches of water column Supply air dry bulb temperature Return air dry bulb temperature Temperature drop A B C D Blower Type Set Up Outside air dry bulb temperature Return air wet bulb temperature Supply air wet bulb tempe...

Страница 24: ...h the owner s manual Explain thermostat use and programming if applicable to owner Unit Operation and Cycle Test Operate the unit through continuous fan cycles from the thermostat noting and correcting any problems Operate the unit through cooling cycles from the thermostat noting and correcting any problems Job site has been cleaned indoor and outdoor debris removed from job site Tools have been ...

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