Carrier 38GVM Series Service Manual
Carrier 38GVM Series Service Manual

Carrier 38GVM Series Service Manual

Multi-split high-wall ductless split system
Hide thumbs Also See for 38GVM Series:
Table of Contents

Advertisement

38GVM / 40GVM
Multi---Split High---Wall Ductless Split System
38GVM --- Size 18k, 24k, 30k, 36k and 42k
40GVM --- Size 9k, 12k, and 18k
This Service Manual provides the necessary information to service,
repair, and maintain the 38/40GVM.

TABLE OF CONTENTS

SAFETY CONSIDERATIONS

MODEL / SERIAL NUMBER NOMENCLATURE
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
!
EXPLOSION HAZARD
result in death, serious personal injury,
and/or property damage.
Never use air or gases containing
oxygen for leak testing or operating
refrigerant compressors.
mixtures of air or gases containing
oxygen can lead to an explosion.
Service Manual
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . .
. . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . .
. . . . . . . . . . . . .
. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
Pressurized
SAFETY CONSIDERATIONS
Improper installation, adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury, or property
PAGE
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The qualified
1
installer or agency must use factory- -authorized kits or accessories
2
when modifying this product. Refer to the individual instructions
3
packaged with the kits or accessories when installing.
4
Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Use quenching cloth for brazing operations.
6
Have fire extinguisher available. Read these instructions
6
thoroughly and follow all warnings or cautions included in
6
literature and attached to the unit. Consult local building codes and
National Electrical Code (NEC) for special requirements.
7
8
Recognize safety information. This is the safety- -alert symbol
When you see this symbol on the unit and in instructions or
9
manuals, be alert to the potential for personal injury.
11
Understand these signal words: DANGER, WARNING, and
12
CAUTION. These words are used with the safety- -alert symbol.
DANGER identifies the most serious hazards which will result in
13
severe personal injury or death.
14
which could result in personal injury or death. CAUTION is used
19
to identify unsafe practices which may result in minor personal
injury or product and property damage. NOTE is used to highlight
21
suggestions which will result in enhanced installation, reliability, or
22
operation.
28
!
44
47
!
EQUIPMENT DAMAGE HAZARD
Failure to follow this caution may result in equipment
damage or improper operation.
Do not bury more than 36 in. (914 mm) of refrigerant pipe
in the ground. If any section of pipe is buried, there must be
a 6 in. (152 mm) vertical rise to the valve connections on
the outdoor units. If more than the recommended length is
buried, refrigerant may migrate to the cooler buried section
during extended periods of system shutdown. This causes
refrigerant slugging and could possibly damage the
compressor at start- -up.
WARNING signifies hazards
WARNING
CAUTION
! !

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 38GVM Series and is the answer not in the manual?

Questions and answers

Summary of Contents for Carrier 38GVM Series

  • Page 1: Service Manual

    38GVM / 40GVM Multi---Split High---Wall Ductless Split System 38GVM --- Size 18k, 24k, 30k, 36k and 42k 40GVM --- Size 9k, 12k, and 18k Service Manual This Service Manual provides the necessary information to service, SAFETY CONSIDERATIONS repair, and maintain the 38/40GVM. Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other TABLE OF CONTENTS...
  • Page 2: Model Number Nomenclature

    MODEL NUMBER NOMENCLATURE INDOOR UNIT --- --- --- Fan Coil Unit Voltage 3 --- 208/230 ---1 ---60 Nominal Capacity 009 --- 3/4 Ton Unit Type 012 --- 1 Ton GVM --- Multi High Wall 018 --- 1 ---1/2 Ton OUTDOOR UNIT --- --- --- Voltage Outdoor Unit...
  • Page 3: Standard Features And Accessories

    STANDARD FEATURES AND ACCESSORIES INDOOR UNITS Ease of Installation Mounting Bracket Low Voltage Controls Comfort Features Microprocessor Control Wireless Remote Control Rapid Cooling and Heating Automatic Air Sweep Cold Blow Prevention Continuous Fan Auto Restart Function Auto Changeover Energy Saving Features Inverter Driven Compressor Sleep Mode 24 Hour Stop/Start Timer...
  • Page 4 PHYSICAL DATA - - 38GVM Outdoor Unit 38GVM System Voltage 208/230 ---1 ---60 Control Voltage Low Voltage Pulse DC Rated Cooling Capacity (Btuh) 18,000 26,000 29,000 34,400 40,000 Cooling Cap. Range Min --- Max Btuh 7,000 --- 21,000 7,500 --- 33,000 7,500 --- 33,000 8,530 --- 34,000 8,500 --- 46,400...
  • Page 5 PHYSICAL DATA - - 40GVM Indoor Unit 40GVM System Voltage 208/230 ---1 ---60 Control Voltage Low Voltage Pulse DC Electrical Connections Indoor Unit Powered From Outdoor Unit Nominal Cooling Capacity (Btuh) 9,000 12,000 18,000 Nominal Heating Capacity (Btuh) 9,800 13,000 19,800 Operating Weight lb (kg) 22.0 (10)
  • Page 6 AHRI* CAPACITY RATINGS High Heating Low Heating Model Numbers Cooling 47° F (8.33° C) 17° F ( --- 8.33° C) Capacity Outdoor Unit Indoor Unit SEER Capacity (Btuh) HSPF Capacity (Btuh) (Btuh) 2 x 40GVM009 --- --- ---3 18,000 10.2 16.0 19,000 9,600...
  • Page 7 DIMENSIONS - - INDOOR A08289 Net Operating Weight Unit Size In. (mm) In. (mm) In. (mm) Lbs. (Kg) 33.3 (846) 10.7 (272) 7.1 (180) 22.0 (10) 33.3 (846) 10.7 (272) 7.1 (180) 22.0 (10) 37.0 (940) 11.7 (297) 7.9 (201) 29.0 (13) Fig.
  • Page 8 DIMENSIONS - - OUTDOOR 35.1 (892) 13.4 (341) 15.6 (396) 37.2 (946) 22.0 (560) Unit: in. (mm) A12553 Fig. 4 – 38GVM024/030 024 Weight, lb (kg): Gross - - 146 (66.2) / Net - - 135 (61.2) 030 Weight, lb (kg): Gross - - 148 (67.1) / Net - - 137 (62.1) 39.1 (994) 36.2 (920) 24.0 (610)
  • Page 9 DIMENSIONS - - OUTDOOR CONTINUED 42.8 (1087) 40.0 (1015) 24.8 (631) Unit: in. (mm) (191) A12555 Fig. 6 – 38GVM042 Weight, lb (kg): Gross - - 247 (112.3) / Net - - 225 (102.3) CLEARANCES - - INDOOR CEILING 6" (0.15m) min. 5"...
  • Page 10 CLEARANCES - - OUTDOOR 20 (508) minimum space above top of unit 11.8 (300) minimum space 11.8 (300) on air inlet side minimum distance from wall 24.0 (610) minimum space on service valve side 78 (2000) minimum space in front of Unit: in.
  • Page 11: System Operating Envelope

    SYSTEM OPERATING ENVELOPE Model Size Indoor/Outdoor Indoor Outdoor Indoor Operating Range (A/C and HP) ° F (° C) 61 to 86 (16 to 30) Cooling Ambient Operating Range ° F (° C) 23 to 118 ( ---5 to 48) Heating Ambient Operating Range ° F (° C) 5 to 81 ( ---15 to 27) 5°F 118°F...
  • Page 12: Electrical Data

    ELECTRICAL DATA Outdoor Units System Voltage Operating Voltage* Compressor Outdoor Fan FUSE/CB Unit Size (MOCP) VOLT--- PH --- HZ MAX/MIN 18 K 0.54 24 K 14.7 1/12 0.59 30 K 208/230 ---1 ---60 253/187 19.6 36 K 21.0 0.67 42 K 21.5 1.10 Indoor Units...
  • Page 13: Connection Diagram

    CONNECTION DIAGRAM Covered conduit connection for size 18k only Outdoor unit Terminal Block Conduit panel Conduit 38GVM-40GVM 18K - 42K Connection Diagram This Series of Connections Will be Repeated for Each Indoor Unit (A to A - B to B etc.) CONNECTING CABLE OUTDOOR TO INDOOR Main...
  • Page 19 REFRIGERATION SYSTEM DIAGRAMS outdoor indoor filter A heat exchanger filter outdoor heat exchanger 4-way valve B heat exchanger filter high pressure switch Note: Not available for 18K model discharge silencer C heat exchanger discharge temperature sensor filter D heat exchanger gas -liquid separator filter Note: Not available for 18K model...
  • Page 20 REFRIGERATION SYSTEM DIAGRAMS CONTINUED Heat Exchanger Liquid Receiver Four-way Valve Capillary Oil Separator Outdoor Uint Stop Valve Compressor Gas/Liquid Separator Electronic Expansion Valve Heating Cooling Indoor Uint Heat Exchanger Heat Exchanger Heat Exchanger Heat Exchanger Heat Exchanger Fig. 18 – Refrigeration System Diagram 36k - - 42k...
  • Page 21: System Evacuation And Charging

    SYSTEM EVACUATION AND CHARGING Deep Vacuum Method CAUTION The deep vacuum method requires a vacuum pump capable of pulling a vacuum of 500 microns and a vacuum gage capable of UNIT DAMAGE HAZARD accurately measuring this vacuum depth. The deep vacuum method is the most positive way of assuring a system is free of air and Failure to follow this caution may result in equipment liquid water.
  • Page 22: Remote Control Display

    REMOTE CONTROL AND FUNCTIONS 1. Remote Control Display 2. ON/OFF Button 3. MODE Button 4. Setpoint Clock, Timer Up (+) and Down (---) Buttons 5. Fan Speed 6. Horizontal Louver Swing Button 7. Clock Button 8. Timer ON Button 9. Dry Coil Button 10.
  • Page 23: Setting The Clock

    REMOTE CONTROL AND FUNCTIONS CONTINUED Setting the Clock CAUTION Before you start operating the air conditioner, set the clock on the remote control as outlined below. The clock panel on the remote EQUIPMENT DAMAGE HAZARD controller will display the time regardless of whether the air conditioner is in use or not.
  • Page 24 Remote Control Operation - - Quick Start FUNCTIONS The remote control is the interface between the user and the NOTE: When transmitting a command from the remote control to high- -wall systems. Commands are entered by the user to control the unit, be sure to point the control toward the LED display on the the system.
  • Page 25 FUNCTION AND CONTROLS CONTINUED COOL & HEAT MODES Displaying Setpoint or Room Temperatures on Front Panel Press the “+” and “- -” buttons to select the temperature. The unit The setpoint temperature or room temperature can be displayed on will confirm signal receipt with a beep and the value of the set the front panel.
  • Page 26 FUNCTION AND CONTROLS CONTINUED Timer ON only When the is displayed, the louver will swing continuously between positions 1 and 5 as shown below. OPER º F º C HOUR Only ON is displayed. A09639 A09634 This function will allow the unit to start automatically at the set time.
  • Page 27 FUNCTION AND CONTROLS CONTINUED The “TIMER OFF” time will be stored in memory indefinitely Time Delay until is is cancelled by pushing the the “TIMER OFF” button or If the On/Off button is pressed too soon after a stop, the the batteries are replaced in the remote control.
  • Page 28: Troubleshooting

    TROUBLESHOOTING Precautions for Performing Inspections and Repairs WARNING Be cautious during installation and maintenance. Follow all rules and regulations to avoid electric shock and to prevent injury or damage. ELECTRICAL SHOCK HAZARD WARNING Failure to follow this warning could result in personal injury or death.
  • Page 29 TROUBLESHOOTING CONTINUED Basic Troubleshooting PROBLEM POSSIBLE CAUSE SOLUTION  Air filter dirty  Clean the air filter Indoor unit emits a bad odor on start- - up  Output air still has odor after cleaning filter.  Contact your service representative. ...
  • Page 30 TROUBLESHOOTING CONTINUED 38GVM Diagnostic Codes Indoor and/or Indoor Unit 18, 24, and 30K 36 and 42K Outdoor Unit Display Error Defrost Mode 1 Outdoor Defrost Mode 2 Outdoor Inlet tube temperature sensor malfunction Inlet tube temperature sensor malfunction See Error Code Table Indoor Outlet tube temperature sensor malfunction Outlet tube temperature sensor malfunction...
  • Page 31 TROUBLESHOOTING CONTINUED Error Code Table Error Error Error Error Description Error Description Error Description Code Code Code Unit A indoor pipe outlet temperature Unit B indoor pipe outlet temperature Unit C indoor unit pipe outlet sensor malfunction sensor malfunction temperature sensor malfunction Unit A indoor pipe inlet temperature Unit B indoor pipe inlet temperature Unit C indoor unit pipe inlet...
  • Page 32: Malfunction Indicator

    TROUBLESHOOTING CONTINUED Malfunction Indicator ○ Note: : off : on : blink When several malfunctions occur at the same time, they will be displayed in circulation and every malfunction is displayed for 5s. Malfunction description LED1 LED2 LED3 LED4 ○ ○...
  • Page 33: Malfunction Checking And Elimination

    TROUBLESHOOTING CONTINUED Communication failure with Unit A Communication failure with Unit B ○ ○ Communication failure with Unit C ○ Communication failure with Unit D ○ Unit A freeze protection ○ Unit B freeze protection Unit C freeze protection Unit D freeze protection ○...
  • Page 34 TROUBLESHOOTING CONTINUED Energize the unit Please check: 1. if the indoor or outdoor heat exchangers are dirty, if there is blockage to affect the airflow; 2. if the indoor and outdoor fans are running normally; If any of these causes exist 3.
  • Page 35 TROUBLESHOOTING CONTINUED (2) PFC protection malfunction Main checking points: Is the power supply correct?; Is the reactor broken or mis-wired? Flow chart: Start Verify that the power supply is correct Turn the system on after the power supply error is Power supply is not correct l cleared Check if the outdoor reactor is broken...
  • Page 36 TROUBLESHOOTING CONTINUED (3) Capacity charging malfunction Main checking points: Is the wiring of the reactor connected correctly or is the reactor broken; Is the mainboard broken; Flow chart: Energize the unit and wait for 1min Check the capacitor voltage with a voltmeter on the DC scale Replace the out- The detection circuit of...
  • Page 37 TROUBLESHOOTING CONTINUED (4) Anti-high temperature and overload malfunction Main checking points: Is the outdoor ambient temperature above the operating limit ; Is the outdoor fan running normally; Are the indoor and outdoor heat exchangers dirty or blocked; Flow chart: Start The system is not designed to Is the outdoor ambient temperature operate above 125°F - this is...
  • Page 38 TROUBLESHOOTING CONTINUED (5) Temperature sensor malfunction Main checking points: Is the temperature sensor damaged or mis-wired Is the terminal of the temperature sensor loose or not connected correctly; Is the mainboard broken ; Flow chart: Start Check whether the wiring connection between the temperature sensor and the outdoor main board is loose or not connected Correct the wiring...
  • Page 39 TROUBLESHOOTING CONTINUED (6) Start failure malfunction Main checking points: Is the compressor connected properly Is the stop duration of the compressor is correct Is the compressor broken Is the refrigerant charge amount too great; Flow chart: Energize and start the unit Is the stop duration of the compresso r 3 minutes or longer Reconnect the compressor...
  • Page 40 TROUBLESHOOTING CONTINUED (7) Communication malfunction Main checking points: Is the connection wire between the indoor unit and outdoor unit connected correctly at both ends Is the indoor mainboard or outdoor main board broken Flow chart: Communication malfunction of some indoor units De-energize and make sure all connections at both ends are correct and tight...
  • Page 41 TROUBLESHOOTING CONTINUED All the indoor units show communication malfunction De-energize, check all signal and power wiring connections Reconnect according to Eliminate the malfunction Connected correctly? the wiring diagram De-energize, check the wiring between the outdoor main board and the filter board. Reconnect according to Connected correctly? Eliminate the malfunction...
  • Page 42 TROUBLESHOOTING CONTINUED (8) Compressor overload, diacharge protection malfunction Main checking points: Is the eletronic expansion valve connected correctly or broken Is there a refrigerant leak Is the overload protector broken Flow chart: Start Is the overload protector connected correctly? Check the resistance across the overload protector? Is it less than 1k ohms? Reconnect according Is the electronic expansion valve...
  • Page 43 TROUBLESHOOTING CONTINUED (9) Compressor desynchronizing malfunction Main checking points: Is the system pressure too high Is the eletronic expansion valve working correctly or is it broken; Are the system heat exchangers functioning correctly Flow chart: The system starts then stops immediately after being energized Is stop duration of the compressor 3 minutes or less?
  • Page 44 TROUBLESHOOTING CONTINUED Appendix 1: Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (15K) Resistance(kΩ) Resistance(kΩ) Resistance(kΩ) Resistance(kΩ) TEMP (_C) TEMP (_C) TEMP (_C) TEMP (_C) 138.1 18.75 3.848 1.071 128.6 17.93 3.711 1.039 121.6 17.14 3.579 1.009 16.39 3.454 0.98...
  • Page 45 TROUBLESHOOTING CONTINUED Appendix 2: Resistance Table of Outdoor and Indoor Tube Temperature Sensors (20K) Resistance(kΩ) Resistance(kΩ) Resistance(kΩ) Resistance(kΩ) TEMP (_C) TEMP (_C) TEMP (_C) TEMP (_C) 181.4 25.01 5.13 1.427 171.4 23.9 4.948 1.386 162.1 22.85 4.773 1.346 153.3 21.85 4.605 1.307 20.9...
  • Page 46 TROUBLESHOOTING CONTINUED Appendix 3: Resistance Table for Outdoor Discharge Temperature Sensor (50K) Resistance(kΩ) Resistance(kΩ) Resistance(kΩ) Resistance(kΩ) TEMP (_C) TEMP (_C) TEMP (_C) TEMP (_C) 853.5 18.34 4.75 799.8 93.42 17.65 4.61 89.07 16.99 4.47 703.8 84.95 16.36 4.33 660.8 81.05 15.75 4.20 620.8...
  • Page 47 REMOVAL PROCEDURE OF OUTDOOR UNIT - - 18K Procedure Steps 1. Remove top cover and wiring cover Before disassembly Remove screws retaining the wiring cover, lift the cover upward to remove it. Wiring Cover Top Panel Remove screws retaining the top cover, lift the top cover upward to remove it.
  • Page 48 Procedure Steps 2.Remove front grille and front panel Remove the screws retaining the front grille to the front panel. Remove the front grille. Front grille Remove the screws retaining the panel, lift it upward to loosen the clasp on the right side, rotate it to the left and then remove the front panel.
  • Page 49 Procedure Steps 4.Remove the fan blade Remove the nut retaining the blade to the motor shaft, then remove the fan blade. Fan Blade Remove the four (4) screws retaining the motor; disconnect the motor wiring, then remove the motor. Remove the two (2) screws retaining the motor support;...
  • Page 50 Procedure Steps 6. Remove sound shield Carefully remove the sound shield from around the compressor. Sound Shield 7. Remove reactor Remove screws holding the reactor to the compressor partition; then remove the reactor. Reactor 8. Remove 4-way valve 4-Way Reclaim system refrigerant charge. Valve Cut all lines connected to 4-way valve;...
  • Page 51 Procedure Steps 9. Remove electronic expansion valves and shut-off valves Electronic Expansion Valves Remove the solenoid coils from the electronic expansion vlaves. Cut all lines connecting the valves to the system and remove the valves. Shut-off Valves 10. Remove the service valve support assembly Remove the screws retaining the valve support to the chassis;...
  • Page 52 Procedure Steps 12. Remove compressor Remove three (3) nuts from compressor mounting bolts, Compressor then lift compressor from base pan. 13. Remove condenser Remove the screws retaining the support and condenser assembly. Then remove the support. Support Condenser Remove the condenser from the base pan. Base Pan...
  • Page 53 REMOVAL PROCEDURE OF OUTDOOR UNIT - - 24K / 30K Steps Procedure 1.Remove wiring connection cover and conduit connection plate Before disassembly Remove the screws retaining the wiring connection cover to the right side panel and remove cover. Wiring Connection Cover Remove the screws retaining the conduit connection plate to the right side panel and remove the plate.
  • Page 54 Steps Procedure 8.Remove condenser support Remove the screws retaining the condenser support to the base pan and remove the condenser support. Condenser Support 9.Remove fan blade Remove the nut retaining the fan blade to the fan motor shaft and remove the fan blade. Fan Blade 10.Remove motor and motor support Disconnect the fan motor wiring and remove the...
  • Page 55 Steps Procedure 11.Remove control box assembly Control Box Assembly Disconnect all wiring, remove screws retaining control box to compressor partition and lift control box out of unit. 12.Remove reactor Remove the screws retaining the reactor to the compressor partition and remove the reactor. Reactor 13.Remove 4-way valve 4-Way Valve...
  • Page 56 Steps Procedure 14.Remove suction pipe assembly Cut the suction pipe at the receiver and the compressor. Remove suction pipe from unit. Suction Pipe 15.Remove liquid receiver Remove the screws retaining the liquid receiver to the compressor partition and remove the reciever from the unit.
  • Page 57 Steps Procedure 17.Remove compressor Compressor Remove nuts from compressor mounting bolts and lift compressor from base pan. Base Pan 18.Remove service valve support Service Valve Support Remove the screws retaining the service valve support to the base pan and remove the support. Base Pan 19.Remove electronic expansion valves Service Valve...
  • Page 58 REMOVAL PROCEDURE OF OUTDOOR UNIT - - 36K Steps Procedure 1. Before disassembly Top panel 2.Remove top panel Remove the 3 screws connecting the top panel with the front panel and the right side plate, and then remove the top panel. 3.Remove front side plate Remove the 1 screw connecting the front sideplate and the panel,and then remove the front side plate.
  • Page 59 Steps Procedure 4.Remove guard grille Guard grille plate to remove guard grille. 5. Remove right side plate Right side plate Remove the screws connecting the right side plate with the chassis, the valve support and the electric box, and then remove the right side plate assy . 6.
  • Page 60 Steps Procedure Remove cabinet Remove the screws connecting the panel with the chassis,the motor support and Clapboard Assy then remove the cabinet. Cabinet 8.Remove control box assy Control box assy Remove the grounding wire screw on the control box assy and then remove the grounding wire. Disconnect the wiring terminals of reactor, compressor, high and low pressure switch, compressor overload protector, temperature sensor,...
  • Page 61 Steps Procedure 10.Remove 4-way valve 4-way valve Reclaim all refrigerant charge in system. Cut all line connections to 4-way valve and remove from unit. 11.Remove Service Valve Support Reclaim all refrigerant charge in system. Cut all line connections to the service valve support; remove the 2 bolts retaining the liquid valve;...
  • Page 62 Steps Procedure Gas-liquid Separator 13.Remove Gas-liquid Separator Unsolder the spot weld of Gas-liquid Separator, and Remove the screws connecting the Gas-liquid Separator and Clapboard Sub-Assy, then remove Gas-liquid Separator 14.Remove Clapboard Sub-Assy Clapboard Condenser Support Plate Remove the screws connecting Clapboard Sub- Assy with the chassis, and Condenser Support Plate then remove the cabinet.
  • Page 63 Steps Procedure 16.Remove compressor Compressor the compressor upwards to remove the compressor. Note: Keep the ports of discharge pipe and suction pipe from foreign objects. 17.Remove condenser sub-assy Condenser Sub-Assy Remove the screws retaining the condenser sub-assy and chassis, then lift the condenser s u b - a s s y upwards to remove.
  • Page 64 REMOVAL PROCEDURE OF OUTDOOR UNIT - - 42K Steps Procedure 1. Disassemble the cover plate ① Remove the fixed screws on the cover plate by using a screwdriver. ② Remove the cover plate. 2. Disassemble the front panel ① Remove the fixed screws on the front panel by using a screwdriver.
  • Page 65 Steps Procedure 4. Dismount the grille ① Remove the fixed screws on the grille by using a screwdriver. ② Remove the grille. 5. Disassemble the outer casing ① Remove the fixed screws on the outer casing by using a screwdriver. ②...
  • Page 66 Steps Procedure 7 Assemble the disassembled main parts as per the reverse disassembly order mentioned above Assemble the disassembled main parts as per the reverse disassembly order mentioned above and energize the unit for trial test. Disassembly and Assembly of Compressor Remark: Make sure that there is no refrigerant in pipe system and the power supply is cut off before disassembling the compress or.
  • Page 67 Steps Procedure 3. Remove the bad compressor ① Remove the bolts retaining the compressor. ② Remove the bad compressor from the bottom plate 4. Place the new compressor on the bottom plate and connect the suction inlet and discharge outlet with the pipe system ①...
  • Page 68 Steps Procedure 2. Remove 4-way valve Reclaim all refrigerant charge in system. Cut all line connections to 4-way valve and remove from unit. 3. Replace the 4-way valve ① Place the new 4-way valve in the right place. ② Reweld the new 4-way valve with the pipeline. 4.
  • Page 69 Disassembly and Assembly of Electronic Expansion Valve Steps Procedure 1. Remove the electronic expansion valve coil Remove the electronic expansion valve coil by rotating it until the lock is unfixed. 2 Remove the electronic expansion valve Cut all lines to the electronic expansion valves then remove.
  • Page 70 ① Place the new liquid separator on the middle baffle ② Tighten the bolt and reconnect the new liquid separator with the pipeline by welding. Copyright 2013 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Edition Date: 03/13 Catalog No.38---40GVM---1SM Replaces: New Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

Table of Contents

Save PDF