Related Manuals for Mars Comfort-Aire Century B-VMH24CU-1
Summary of Contents for Mars Comfort-Aire Century B-VMH24CU-1
- Page 1 INSTALLATION MANUAL Super-Slim Four-Way Cassette Model B-VMH24CU-1 517.787.2100 • www.marsdelivers.com...
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Page 2: Table Of Contents
Installation Manual - B-VMH24CU-1 Table of Contents Installation Manual Accessories ............ Safety Precautions ........Installation Overview ....... Indoor Unit Installation Indoor Unit Installation ............Indoor Unit Parts ......... Indoor Unit Installation Instructions ..10 Outdoor Unit Installation ......Outdoor Unit Installation Instructions .. - Page 3 Installation Manual - B-VMH24CU-1 Refrigerant Piping Connection ....... Notes on Pipe Length and Elevation ....18 Refrigerant Piping Connection Instructions ...20 Wiring ..........Outdoor Unit Wiring ....Indoor Unit Wiring ...... Power Specifications ....Air Evacuation ..........Evacuation Instructions ........ Note on Adding Refrigerant .......
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Page 4: Accessories
Installation Manual - B-VMH24CU-1 Accessories The air conditioning system comes with the following accessories. Use all of the installation parts and accessories to install the air conditioner. Improper installation may result in water leakage, electrical shock and fire, or cause the equipment to fail. Name Shape Quantity... -
Page 5: Safety Precautions
Installation Manual - B-VMH24CU-1 Safety Precautions Read Safety Precautions Before Installation Incorrect installation due to ignoring instructions can cause serious damage or injury. The seriousness of potential damage or injuries is classified as either a WARNING or CAUTION. Failure to observe a warning may result in death. The appliance must be installed in accordance with national regulations. - Page 6 Installation Manual - B-VMH24CU-1 WARNING The appliance disconnection must be incorporated with an all-pole disconnection device with • the fixed wiring in accordance with the wiring rules. Any person who is involved with working on or breaking into a refrigerant circuit should hold a •...
- Page 7 Installation Manual - B-VMH24CU-1 Note about Fluorinated Gasses 1. This air-conditioning unit contains fluorinated gasses. For specific information on the type of gas and the amount, please refer to the relevant label on the unit itself. 2. Installation, service, maintenance and repair of this unit must be performed by a certified technician. 3.
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Page 8: Installation Overview
Installation Manual - B-VMH24CU-1 Installation Overview INSTALLATION ORDER Install the indoor unit Install the outdoor unit Install the drainpipe (Page 9) (Page 13) (Page 16) Evacuate the refrigeration system Connect the wires Connect the refrigerant pipes (Page 20) (Page 23) (Page 27) Install the front panel Perform a test run... -
Page 9: Indoor Unit Parts
Installation Manual - B-VMH24CU-1 Indoor Unit Installation Indoor Unit Parts Drain pump (within indoor unit) Drain pipe Air outlet Air inlet Front grille Louver Display panel Refrigerant pipe Fig. 4.1 Safety Precautions CAUTION WARNING • Securely install the indoor unit on a •... -
Page 10: Indoor Unit Installation Instructions
Installation Manual - B-VMH24CU-1 Indoor Unit Installation Instructions CAUTION NOTE: Panel installation should be done after DO NOT install the unit in the following piping and wiring. locations: In areas with oil drilling or fracking Step 1: Select installation location In coastal areas with high salt content in the air The indoor unit should be installed in a location that meets the following requirements:... - Page 11 Installation Manual - B-VMH24CU-1 Step 2: Hang indoor unit. 1. Use the included paper template to cut a rectangular hole in the ceiling, leaving at least 1m (39”) on all sides. The cut hole size should be 4cm(1.6”) larger than the body size(See Fig. 4.3). Be sure to mark the areas where ceiling hook holes will be drilled.
- Page 12 Installation Manual - B-VMH24CU-1 5. Mount the indoor unit. You will need two NOTE: Ensure that the indoor unit is level. The people to lift and secure it. Insert suspension unit is equipped with a built-in drain pump and bolts into the unit’ s hanging holes. Fasten oat switch.
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Page 13: Outdoor Unit Installation
Installation Manual - B-VMH24CU-1 Outdoor Unit Installation The area must be free of combustible gases √ Outdoor Unit Installation Instructions and chemicals. √ The pipe length between the outdoor and Step 1: Select installation location. indoor unit may not exceed the maximum The outdoor unit should be installed in the allowable pipe length. - Page 14 Installation Manual - B-VMH24CU-1 Split Type Outdoor Unit Vertical Discharge Type Outdoor Unit (Refer to Fig 5.4, 5.5, 5.6, 5.10 and Table 5.1) (Refer to Fig 5.7, 5.8, 5.9 and Table 5.2) (Wall or obstacle) Air Outlet >152.4cm / 60” Fig.
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Page 15: Drain Joint Installation
Installation Manual - B-VMH24CU-1 NOTE: The minimum distance between the 2. Insert the drain joint into the hole in the base outdoor unit and walls described in the pan of the unit. installation guide does not apply to airtight 3. Rotate the drain joint 90° until it clicks in place rooms. -
Page 16: Drainpipe Installation
Installation Manual - B-VMH24CU-1 Drainpipe Installation The drainpipe is used to drain water from the NOTE ON DRAINPIPE INSTALLATION unit. Improper installation may cause unit and When using an extended drainpipe, tighten • property damage. the indoor connection with an additional protection tube to prevent it from pulling CAUTION loose. - Page 17 Installation Manual - B-VMH24CU-1 3. Using a 65-mm (2.5”) core drill, drill a hole in the wall. Make sure that the hole is drilled at a slight downward angle, so that the outdoor end of the hole is lower than the indoor end by about 12mm (0.5”).
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Page 18: Refrigerant Piping Connection
Installation Manual - B-VMH24CU-1 Refrigerant Piping Connection Safety Precautions Notes On Pipe Length and Elevation Ensure that the length of the refrigerant pipe, the number of bends, and the drop height between WARNING the indoor and outdoor units meets the •... - Page 19 Installation Manual - B-VMH24CU-1 CAUTION CAUTION • Oil traps If the outdoor unit is installed higher than the indoor unit: If the indoor unit is installed higher than the outdoor unit: -It is recommended that vertical suction risers not be upsized. Proper oil return to the -If oil flows back into the outdoor unit’s compressor should be maintained with suction compressor, this might cause liquid...
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Page 20: Refrigerant Piping Connection Instructions
Installation Manual - B-VMH24CU-1 Table 7.2 Permitted length Total piping length 18K+18K 30/98’ L+Max 90° Rough Oblique Warped (L1, L2) 24K+24K 50/164’ 30K+30K Piping (farthest distance from 15/49’ L1, L2 length the line pipe branch) (farthest distance from 10/32.8’ L1-L2 the line pipe branch) Drop height between 20/65.6’... - Page 21 Installation Manual - B-VMH24CU-1 4. Remove PVC tape from ends of pipe when 1. When connecting the flare nuts, apply a ready to perform flaring work. thin coat of refrigeration oil to the flared ends of the pipes. 5. Clamp flare form on the end of the pipe. 2.
- Page 22 Installation Manual - B-VMH24CU-1 NOTE ON MINIMUM BEND RADIUS Carefully bend the tubing in the middle according to the diagram below. DO NOT bend the tubing more than 90° or more than 3 times. Bend the pipe with thumb min-radius 10cm (3.9”) Fig.
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Page 23: Wiring
Installation Manual - B-VMH24CU-1 Wiring Follow these instructions to prevent distortion Safety Precautions when the compressor starts: • The unit must be connected to the main WARNING outlet. Normally, the power supply must have a low output impedance of 32 ohms. •... -
Page 24: Indoor Unit Wiring
Installation Manual - B-VMH24CU-1 Table 8.2: Other Regions Indoor Unit Wiring Rated Current of Nominal Cross-Sectional 1. Prepare the cable for connection Appliance (A) Area (mm²) a. Using wire strippers, strip the rubber jacket from both ends of signal cable to reveal ≤... -
Page 25: Power Specifications
Installation Manual - B-VMH24CU-1 CAUTION While connecting the wires, please strictly follow the wiring diagram. • The refrigerant circuit can become very hot. Keep the interconnection cable away from • the copper tube. 5. Clamp down cable with the designated cable clamp to secure it in place. The cable should not be loose, and should not pull on the u-lugs. - Page 26 Installation Manual - B-VMH24CU-1 Independent Power Supply Specifications ≤18K MODEL(Btu/h) 19K~24K 25K~36K PHASE 1 Phase 1 Phase 1 Phase POWER (indoor) 208-240V 208-240V 208-240V VOLT CIRCUIT BREAKER/ 15/10 15/10 15/10 FUSE(A) PHASE 1 Phase 1 Phase 1 Phase POWER (outdoor) VOLT 208-240V 208-240V 208-240V...
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Page 27: Air Evacuation
Installation Manual - B-VMH24CU-1 Air Evacuation 4. Turn on the vacuum pump to evacuate the Safety Precautions system. 5. Run the vacuum for at least 15 minutes, or until the Compound Meter reads -76cmHG CAUTION (-1x105Pa). • Use a vacuum pump with a gauge reading 6. -
Page 28: Note On Adding Refrigerant
Installation Manual - B-VMH24CU-1 Note On Adding Refrigerant CAUTION • Refrigerant charging must be performed after wiring, vacuuming and the leak test. • DO NOT exceed the maximum allowable quantity of refrigerant or overcharge the system. Doing so can damage or impact the unit’ s function. •... -
Page 29: Panel Installation
Installation Manual - B-VMH24CU-1 Panel Installation Step 3: Install the panel CAUTION Align the front panel to the main body, taking into account the position of the piping and DO NOT place the panel facedown on the floor, drain sides. Hang the four latches of the against a wall, or on uneven surfaces. - Page 30 Installation Manual - B-VMH24CU-1 2. Remove foam stops from inside the fan. 5. Close the front grille. 3. Attach the side of the front grille to the 6. Fasten the installation covers at all four panel. corners by pushing them inwards. (See Fig.10.6) 4.
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Page 31: Test Run
Installation Manual - B-VMH24CU-1 Test Run f. Check to see that the drainage system is Before Test Run unimpeded and draining smoothly. A test run must be performed after the entire g. Ensure there is no vibration or abnormal system has been completely installed. Confirm noise during operation. - Page 32 11/2019...
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