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Carrier 42QG18-C, Installation Manual

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Carrier 42QG18-C Installation Manual Download Page 2

 

 

 

 
 

 

 

 
 

 

Thank you for selecting Carrier 

Air Conditioner 

 

 

You can be justifiably of your purchase because the same pride in 
craftsmanship and engineering know-how that goes into Carrier 
equipment worldwide have been built into your unit. 
One of the pleasant benefits awaiting you with room air 
conditioning is that in addition to being cooled, the room air is 
filtered and dehumidified. 
 
This installation manual contains all installation, Service and 
maintenance operation  
 

• 

Installation and servicing of conditioning equipment can be 
hazardous due to system pressures and electrical 
components. Only trained and qualified service personnel 
should install. Repair or service the air conditioning 
equipment . 

 

• 

When working on air conditioning equipment, observe 
precautions in the literature, tags and labels attached to the 
unit and other safety codes. 

  

 

Summary of Contents for 42QG18-C

Page 1: ...0 2009 ...

Page 2: ...on to being cooled the room air is filtered and dehumidified This installation manual contains all installation Service and maintenance operation Installation and servicing of conditioning equipment can be hazardous due to system pressures and electrical components Only trained and qualified service personnel should install Repair or service the air conditioning equipment When working on air condi...

Page 3: ...ONS 15 11 INSTALLATION LOCATION CHECK LIST 17 12 INDOOR UNIT INSTALLATION OF INDOOR UNITS 12 1 PREPARING UNIT BEFORE INSTALLATION 18 12 2 INSTALLATION STEPS 19 13 REMOTE CONTROL INSTALLATION 22 14 OUTDOOR UNIT INSTALLATION 14 1 PREPARING UNIT BEFORE INSTALLATION 23 14 2 INSTALLATION STEPS 23 15 CONNECTING REFRIGERANT PIPING LINES 24 16 CONNECTING CONDENSATE DRAIN LINE 35 17 CONNECTING ELECTRICAL W...

Page 4: ...ctro circuit tester 10 Flare tool After completion of installation perform a run test and give the customer full instructions on the correct operation of the air conditioner including Turning the unit on and off Removal and cleaning of the air filters Functions of the remote control Re installation of air filters after cleaning Leave the owner manual with the customer so that it can to be used dur...

Page 5: ...imum 20 Outdoor temperature Maximum Minimum 24 2 18 1 MAIN POWER SUPPLY Standard Mild Ambient Outdoor Unit High Ambient Outdoor Unit Nominal 220V 1Ph 50HZ Nominal 220 240V 1Ph 50HZ Min Voltage 198 Min Voltage 198 Max Voltage 242 Max Voltage 264 NOTES 46 C for System with Mild ambient Standard outdoor unit 52 C for System with High ambient outdoor unit When the unit is operated above or below these...

Page 6: ...back of the condensing unit coil intake airside should be at least 160 mm away from any obstruction This distance 160 mm A is built in design of wall support A free space should be left on the right side of the outdoor unit A free space should be left on the side of the refrigerant connections of condensing unit to ensure easy access to the terminal block A free space should be left from the top c...

Page 7: ...t back No obstacle at unit top obstacles at unit right and left sides Single unit installation Serial installation of two or more units The hieght of the obstacle should be lower than the height of the outdoor unit Obstacle at air inlet to outdoor unit unit back obstacle also at unit top No obstacles at unit right and left sides DIMENSIONS mm 160 mm or more 400 mm or more 400 mm or more 160 mm or ...

Page 8: ...nit both unit front back No obstacle also at unit top No obstacle at unit right and left sides Single unit installation Serial installation of two or more units The height of obstacle at both front and back side should be lower than the height of outdoor unit Serial installation at front and rear sides Standard installation Open the upper side and both right and left sides The height of obstacle a...

Page 9: ...M CLEARANCES Cont 4 2 INDOOR UNITS 42QG SERIES DIMENSIONS mm Weight Model Kg 42QG18 14 42QG24 14 MINIMUM CLEARANCES FOR FREE AIR CIRCULATION SERVICE AND MAINTENANCE Kg 1080 185 Mounting Plate Main Body Connection Tube Drain Hose 295 ...

Page 10: ...he owner s manual 3 Failure due to Accident Weather Natural catastrophe accident due to bad weather Hail Storm Sand Storm lightning Flooding Acid Rain and Air Borne fallout etc 4 Failure due to damages during transport done through the owner 5 Failure due to any modifications in the product done through the owner and not done by Carrier or one of Carrier authorized dealers 6 Failure due to Install...

Page 11: ...ote control signal receiver 2 Operating status leds 6 Supply air outlet 3 Supply air flap 7 Characteristics nameplate 4 Air return 8 Inter connecting tubing 5 Air filter 9 Condensate drain line Indoor Unit 3 8 7 2 1 9 4 5 Outdoor Unit 6 ...

Page 12: ...on the wall Self tapping screw 5 x L50 5 For wall hang bracket installation Tapping Screws 2 For adjustment the gap between indoor unit and wall Drain Elbow 1 Outdoor unit Condensate drain 7 2 OPTIONAL ACCESSORIES Supplied from the factory as per the requirement DESCREPTION CONFIGURATION QTY USAGE Wall support for outdoor unit 1 To mount outdoor unit on the wall Floor support for outdoor unit 1 To...

Page 13: ...film To tie together the refrigerant piping lines electrical connection cables and condensate drain line ـ Vinyl tape To stick pipe insulation ـ Drain hose ID 16 17mm To remove condensate water from the indoor unit to the outside ـ Refrigerant piping lines To connect Freon R22 between outdoor and indoor units ـ Pipe insulation To insulate suction and liquid refrigerant piping lines Refrigerant R22...

Page 14: ...uum pump 2 Drilling hole thru the wall 6 Connecting condensate drain line 10 Refrigerant leak test 3 Installing indoor unit 7 Connecting electrical wiring 11 Opening service valves 4 Processing pipes 8 Finishing outer pipe covering 12 Finishing installation 13 Test Running 14 Description of operation Outdoor unit ...

Page 15: ...tive to Space to be Air Conditioned The installation location should permit the unit to deliver air to all of the space to be uniformly air conditioned Avoid direct sunlight that may affect performance of the unit Avoid heat sources such as steam or flame that may affect performance of the unit Avoid obstructions such as Curtains Furniture and Cloths etc These obstructions can affect motion of sup...

Page 16: ... wall surface is flat enough to allow easy and safe installation The wall structure should be strong enough to carry the unit weight and avoid deformation rupture or vibration during operation Choose an installation location that allows easy installation Choose an installation location that allows for free air circulation service and maintenance minimum clearances Choose an installation location w...

Page 17: ...e fig 2 NOTE The recommended outlet location to pass refrigerant piping lines electrical cables and condensate drain line either from behind unit right or from behind unit left to keep appearance of installation and to facilitate installation The unit hides the refrigerant lines electrical cables and condensate drain line Note In case of impossibility of mounting the indoor unit directly on the wa...

Page 18: ...2 CONSIDERATIONS FOR SELECTING INSTALLATION LOCATIONS Avoid excessive distance between outdoor and indoor units Avoid excessive height between outdoor and indoor units Avoid any obstruction of the unit air outlet and intake or any obstacle that is too close Avoid multiple unit installation with units facing each other Avoid unnecessary turns and bends in the refrigerant piping lines ...

Page 19: ...flammable gas d Cleanness of location The installation location of outdoor unit should be free of dust or any material which can cause clogging of condenser coil When installing unit on the ground select a location not subjected to flooding When the installation is made on the rooftop or other places subject to strong wind When the outdoor unit is to be installed on the rooftop or at the places wh...

Page 20: ...ee service space around the unit right left and top B OUTDOOR UNIT The electrical power supply is close to the outdoor unit The installation location is close to the indoor unit The installation location is able to support operating weight of outdoor unit The installation location is far away from any sunlight The installation location is free of dust or any material which can cause clogging of ou...

Page 21: ...rofoam parts By pulling right and left Styrofoam you will find small carton box containing electrical connection cords and remote control with its accessories Turn the unit up you will find the mounting bracket f Pull the triangle marks located at bottom of the grille frame g Lift grille frame to top of the unit c Remove the screw fixing wall mounting bracket with the unit Remove the wall mounting...

Page 22: ...ither location A or B When making wall hole make sure to drill outwards at a downward angle so that the height difference between the entrance and exit of the hole is at least 5 10 mm Step 3 Cutting Sleeve For Wall Hole Measure the thickness of the wall from the inside edge to the outside edge and cut PVC pipe at a slight angle 6mm shorter than the thickness of the wall Step 4 Mounting Sleeve Into...

Page 23: ... operation Step 6 Electrical wiring of indoor unit See chapter 18 Connecting Electrical Wiring Step 7 Forming refrigerant piping drain hose and electrical cables of indoor unit As per the selected location of wall hole form and tie together with vinyl tape the refrigerant piping electrical cables and drain hose The drain hose should be at the bottom For left piping fit the refrigerant piping elect...

Page 24: ...ed Warning Do not supply power to the indoor unit until all refrigerant piping and electrical wiring to the outdoor unit are completed Step 9 Installing the Indoor Unit Body to the Wall Mounting Bracket Snap the marking places of the body A B onto the hole of the bracket NOTES In case of removing the unit from the wall hang bracket after installing it onto the wall remove it by pushing up the indi...

Page 25: ...4 The average battery life during normal use is approximately one year 6 When the symbol appears in the display of the remote control this indicates that the batteries are exhausted and required to be replaced 13 2 INSTRUCTION WHEN DIRECTING THE TRANSMITTER OF WIRELESS REMOTE CONTROL TO THE RECEIVER OF INDOOR UNIT FROM A CERTAIN LOCATION CHECK THE FOLLOWING POINTS 1 Avoid direct sunlight on the re...

Page 26: ... STEPS FLOOR INSTALLATION STEPS Wall Support Dimensions mm Floor Support Dimensions mm fix wall support into the wall Put unit on the wall support If the outdoor unit installed other than on the ground connect it to a 15 16 mm inside diameter hose This is needed because drain water flows out of the outdoor unit during heating operation Only for heat pump unit Put outdoor unit on the floor support ...

Page 27: ...ng lines are ready for connection with both indoor and outdoor units This is to keep piping clean The installer must carefully unroll the tubing and run it between the indoor and outdoor units Do not bend the pipe more than three times at one place When extending the rolled pipe straighten the pipe by unwinding it When forming the pipe Be careful not to crush it Flattening or kinking of refrigeran...

Page 28: ...ant is from the top to bottom of the coil and towards the outdoor unit The excessive tubing must not be coiled vertically since the vertical coil affects the oil return to the compressor For bends having a radius smaller than 300 mm the use of a tuber bender with a minimum wheel diameter of 120 mm is a must The tube bender wheel grooves should have the same diameters as the refrigerant pipes Avoid...

Page 29: ...t be at the suction line at the base of suction riser near the Indoor unit to facilitate oil return to the compressor to ensure efficiency of compressor mechanical parts If height is more than 4 meters more than one oil trap must exist at the suction line the first one will be at the suction line near to the indoor unit and the following one will be 4 meters from the first one and so on C OUTDOOR ...

Page 30: ...t per extra meter from 3 meters refrigerant piping lines Example 1 For 8 meter lines refrigerant added 8 3 x 25 125 grams Example 2 For 12 meter lines refrigerant added 12 3 x25 225 grams Note 1 The outdoor unit is factory supplied with refrigerant charge for use with refrigerant piping lines of length 3 meters and with added 100 grams for air and moisture purge from the system 2 Charge the refrig...

Page 31: ...ING TOOLS Make sure that have the required tools available before preparing refrigerant piping lines 1 Suction flare valve 2 Suction service valve 3 Suction port to open close 4 Cap for suction service valve 5 Cap for suction port 6 Liquid flare valve 7 Liquid service valve 8 Liquid port to open close 9 Cap for liquid service valve 10 Cap for liquid port Half Union Suction Half Union Liquid REFRIG...

Page 32: ... and should be done carefully to make a good flare and to prevent any gas leaking out NOTE When reaming hold the pipe end downward and be sure that no copper scraps fall into the pipe STEP 2 Removing the flare nuts from the indoor unit Remove the suction and liquid flare nuts from the indoor unit connections NOTES Do not remove the flare nuts from the indoor unit until refrigerant piping lines are...

Page 33: ... must not have any burrs or imperfections Tapered sides are of uniform length 2 Be sure to apply a sealing cap or waterproof tape to prevent dust or water from getting into the refrigeration piping lines before they are used Avoid incorrect flaring which results in damaged or cracked or inclined with uneven thickness surface STEP 6 Mounting flare nuts on the other side of refrigerant piping lines ...

Page 34: ... torque indicated in the following table 1 Be careful not to damage the flare nut threads NOTE One Insufficient tightening torque will cause Freon leaks Two Over tightening the fitting will damage the tube flaring and cause Freon leaks 15 11 STEPS FOR CONNECTING REFRIGERANT PIPING LINES TO OUTDOOR UNIT Connecting the other ends of suction and liquid piping lines respectively with suction and liqui...

Page 35: ...0 degrees 1 4 turn for 5 seconds with a hex key wrench Push the valve core of the suction valve Stop pushing the valve core as soon as the refrigerant hissing stops Open the liquid valve for about 3 seconds then close quickly to check for gas leaks After checking for gas leaks open the liquid and suction valve all the way Reinstall the caps and of the liquid valve suction valve and service port nu...

Page 36: ...acuum pump check the piping connection leakage 5 Close both the liquid and suction valve caps completely 6 Remove the gauge manifold and the vacuum pump During the disconnection please be cautious not to loose any refrigerant and oil 7 Reinstall the valve caps and service port nuts C NOTES Tighten the valve caps and the service port nut to the specified torque as shown in the table CONNECTION DIAG...

Page 37: ...r try to bend it into a narrow curve as this way will cause the pipe to break or crack Repair and cover any possible cracks in the insulation Avoid dripping due to insufficient insulation of piping 15 15 PUMP DOWN Pump down means collecting all the refrigerant in the system back into the outdoor unit Pump down must be actuated before disconnection of pipes to avoid loss of refrigerant gas Pump dow...

Page 38: ... avoid over flowing of condensate water The condensate drain line is connected to the loose end of the drain hose coming out of the indoor unit in one of the following four outlet locations d The drain hose must have no kinks or bends hampering smooth drainage of water due to air stagnation Avoid horizontal kinks or bends Avoid vertical kinks or bends Avoid horizontal drain line with Avoid any ris...

Page 39: ...ker with its own overload should be installed on the electrical distribution box D Operation On Off Circuit Breaker The installation of two pole automatic circuit breaker is necessary to operate the air conditioner The circuit breaker must be installed to be far away from any flammable materials curtains etc The circuit breaker must be suitable for air conditioner as the table ELECTRICAL DATA Page...

Page 40: ...air conditioners Each cable should be a complete unit without extensions C Electrical Connections a Check that the electrical connections between the terminal blocks of indoor and outdoor units are in accordance with the wiring diagrams and caution field electrical wiring contained in the manual Miswiring may cause malfunction of the system and an electric shock b Do not connect wires when power i...

Page 41: ...ary compressor 53QG18 C 44 8 5 1880 9 8 2160 10 5 2320 20 4 53QG24 C 66 220 1 50 12 5 2550 14 4 3015 15 5 3270 25 4 Notes 1 Starting Current duration is usually less than 1 Second 2 Wire size shown applies to standard applications with line length up to 15 meter and a subsequent voltage drop not to exceed 3 For specific conditions and long lines the resulting voltage drop must be checked and it ma...

Page 42: ...ICAL WIRING FOR HEAT PUMP SYSTEM Sizes of electrical wires R C Y O W2 S L N 1 mm2 1 mm2 1 mm2 1 mm2 1 mm2 1 mm2 4 mm2 4 mm2 17 5 CONNECTING ELECTRICAL WIRING FOR COOL ONLY SYSTEM Sizes of electrical wires R C Y L N 1 mm2 1 mm2 1 mm2 4 mm2 4 mm2 Note 1 Connect the power supply to the outdoor unit and then get the power required for the indoor unit from the outdoor unit 2 All dotted lines to be fitt...

Page 43: ...cover by the two screws b Fill the gap between the outside wall pipe hole and the piping with sealing wall sleeve wall cap and sealer so that rain and wind cannot enter g Mount insert grille to the top of indoor unit body with both hands and fit it to the latch of the grille frame c Adjust the internal deflectors of supply air for correct air diffusion to the right or left direction as per the req...

Page 44: ...eturn air to indoor unit and high speed of indoor unit motor 2 System with Standard mild ambient outdoor unit with rotary compressor SYSTEM MODEL 53QG18 H 53QG24 H AMBIENT TEMP ºC 35 40 46 52 35 40 46 52 HIGH PRESSURE PSI 280 312 343 392 267 300 334 382 LOW PRESSURE PSI 73 75 77 79 65 67 69 71 TOTAL AMPS 8 6 9 3 10 1 11 1 12 2 13 1 14 0 15 3 Notes 1 Readings at 220 volt and 27 ºC return air to ind...

Page 45: ...SI 240 260 LOW PRESSURE PSI 52 50 TOTAL AMPS 8 5 11 8 Notes 1 Readings at 220 volt and 20 ºC return air to indoor unit and high speed of indoor unit motor 2 System with Standard mild ambient outdoor unit with rotary compressor SYSTEM MODEL 53QG18 H 53QG24 H AMBIENT TEMP ºC 7 7 HIGH PRESSURE PSI 230 250 LOW PRESSURE PSI 60 60 TOTAL AMPS 7 5 11 3 Notes 1 Readings at 220 volt and 20 ºC return air to ...

Page 46: ...tion will be set automatically Louver will be set to the preset position according to the operation mode In Cool or Dry or Fan mode the louvre will swing in cooling range In Heat mode the louvre will swing in heating range 6 positions can be chosen The louvre can be set to one of 6 different airflow directions The louver will continuously swing up and down Swing always assures optimal even air dis...

Page 47: ...rant piping lines are tested for refrigerant leakage e The service valves for suction and liquid in outdoor unit are open f The cap nuts for flare valves are properly tightened 21 4 CONDENSATE DRAIN LINE CONNECTIONS a The Condensate drain line from indoor unit is gradually inclined downwards to the outside b The Condensate water flow smoothly 21 5 ELECTRICAL CONNECTIONS a The operating voltage ele...

Page 48: ...normal noise or vibration from the outdoor unit during operation c There is no any abnormal noise or vibration from the indoor unit during operation d The wireless remote control operate Correctly e Each lamp on the indoor unit lights normally 21 8 CUSTOMER GUIDANCE a The correct operation of the air conditioner has been explained to the customer including the following points Starting and stoppin...

Page 49: ...carbon filter for odor removal Optional photo catalytic filter for cigarette smoke removal 22 3 INSTALLATION STEPS OF OPTIONAL AIR FILTERS Step 1 After lifting return air grill up to the top of the unit pull the standard air filters downward Step 2 Install optional air filters inside the top guides of the unit specified for optional air filters then install standard air filters Step 3 Install retu...

Page 50: ...tive defrost both the compressor drive and reversing valve malfunction test will be cancelled and reinitiated after the following compressor OFF ON cycle The unit on lamp is scanned every half second and the error codes are displayed by the flashing frequency of unit on lamp The error codes are displayed during SHUT OFF 3 minutes off and after the 5th retry failure Malfunction Reason Flashing Freq...

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