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INSTALLATION MANUAL

UltraV Series Outdoor Units

Models

517.787.2100 • www.marsdelivers.com

P

A-VMH18DV-1

A-VMH28TV-1

A-VMH36QV-1

A-VMH48PV-1

Summary of Contents for Comfort-Aire Century UltraV Series

Page 1: ...INSTALLATION MANUAL UltraV Series Outdoor Units Models 517 787 2100 www marsdelivers com A VMH18DV 1 A VMH28TV 1 A VMH36QV 1 A VMH48PV 1...

Page 2: ...5 Outdoor Unit Installation 11 Outdoor Unit Installation Instructions 11 Drain Joint Installation 13 Notes on Drilling Hole in Wall 13 When Select a 24K Indoor Unit 13 Table of Contents Installation M...

Page 3: ...nt Piping Connection 14 Wiring 17 Outdoor Unit Wiring 17 Wiring Figure 19 Air Evacuation 23 Evacuation Instructions 23 Note on Adding Refrigerant 24 Safety And Leakage Check 25 Test Run 26 Function of...

Page 4: ...sfer connector packed with the indoor or outdoor unit depending on models NOTE Pipe size may differ from appliance to appliance To meet different pipe size requirements sometimes the pipe connections...

Page 5: ...out supervision Do not use means to accelerate the defrosting process or to clean other than those recommended by the manufacturer Only trained and certified technicians should install repair and serv...

Page 6: ...cation Amount of refrigerant to be charged kg maximum installation height m Minimum room area m 2 048 2 2m 4 2 048 1 8m 4 2 048 0 6m 35 2 048 3 0 2 2m 4 2 048 3 0 1 8m 8 2 048 3 0 0 6m 80 3 0 2 2m 5 3...

Page 7: ...ant label on the unit itself 2 Installation service maintenance and repair of this unit must be performed by a certified technician 3 Product uninstallation and recycling must be performed by a certif...

Page 8: ...48PV 1 8 Installation Overview 3 L N 1 2 3 MC MC 4 5 INSTALLATION ORDER Install the outdoor unit Page 11 Evacuate the refrigeration system Page 23 Connect the wires Page 17 Connect the refrigerant pi...

Page 9: ...Standards may vary in different areas A minimum pipe run of 3 meters is required to minimize vibration excessive noise Two of the B C and D air circulation pathways must be free from obstructions at a...

Page 10: ...ft 10m 32 8ft When installing multiple indoor units with a single outdoor unit ensure that the length of the refrigerant pipe and the drop height between the indoor and outdoor units meet the requirem...

Page 11: ...The pipe length between the outdoor and indoor unit may not exceed the maximum allowable pipe length If possible DO NOT install the unit where it is exposed to direct sunlight If possible make sure th...

Page 12: ...0 25 2 405 15 95 990x965x345 38 98x38x13 58 624 24 58 366 14 4 946x810x420 37 2x31 9x16 53 673 26 5 403 15 87 946x810x410 37 2x31 9x16 14 673 26 5 403 15 87 952x1333x410 37 5x52 5x16 14 634 24 96 404...

Page 13: ...protects the edges of the hole and helps seal it when you finish the installation process M N P Minimum 4 Recommended 12 from back wall Minimum 24 on right 60 cm 23 6 above 30 cm 11 8 on left 200 cm...

Page 14: ...rigerant Piping Connection Instructions CAUTION The branching pipe must be installed horizontally An angle of more than 10 may cause malfunction DO NOT install the connecting pipe until both indoor an...

Page 15: ...er pipe Fig 7 3 Table 7 1 PIPING EXTENSION BEYOND FLARE FORM 8 Remove the flaring tool and flare form then inspect the end of the pipe for cracks and even flaring Pipe gauge Tightening torque Flare di...

Page 16: ...s 10cm 3 9 Fig 7 8 6 After connecting the copper pipes to the indoor unit wrap the power cable signal cable and the piping together with binding tape NOTE DO NOT intertwine signal cable with other wir...

Page 17: ...grounding wire should be away from gas pipes water pipes lightning rods telephone or other grounding wires Improper grounding may cause electrical shock DO NOT connect the unit with the power source...

Page 18: ...l box cover 2 Remove the electric cover of the outdoor unit If there is no cover on the outdoor unit disassemble the bolts from the maintenance board and remove the protection board See Fig 8 1 Cover...

Page 19: ...ive cables to the terminals as identified with their matching numbers on the terminal block of the indoor and outdoor units For example in the US models shown in the following diagram Terminal L1 A of...

Page 20: ...G TO A S B N A N B L B L L A N S A POWER SUPPLY TO B TO A S 2 S 1 Y G TO B TO C Y G L A N A S A L B N B S B L C N C S C POWER SUPPLY N L Y G TO A Model A Model B Model C Model D Model E Model F OPTION...

Page 21: ...S C L D N D S D Y G TO A Model A Model B Model C Model D Model F Model E OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL OPTIONAL O...

Page 22: ...percent of the rated voltage marked on the name plate Confirm that the cable thickness is as specified Always install an earth leakage circuit breaker in wet or moist areas The following can be caused...

Page 23: ...e by turning the wrench 1 4 counterclockwise Listen for gas to exit the system then close the valve after 5 seconds Flare nut Cap Valve body Valve stem Fig 9 2 9 WatchthePressureGaugeforoneminutetomak...

Page 24: ...2 one twin models N 3 one three models N 4 one four models Depending on the length of connective piping or the pressure of the evacuated system you made need to add refrigerant Refer to table below f...

Page 25: ...r to perform an electrical leakage check Turn off the unit immediately if leakage happens Try and evaluate different solutions until the unit operates properly Gas leak check 1 Soap water method Apply...

Page 26: ...nd gas stop valves 2 Turn on the main power switch and allow the unit to warm up 3 Set the air conditioner to COOL mode 4 For the Indoor Unit a Ensure the remote control and its buttons work properly...

Page 27: ...all wiring piping is properly connected How To Activate This Function 1 Check that outside temperature is above 5 This function does not work when outside temperature is not above 5 2 Check that the...

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