Mitsubishi MCFH-A18WV- Installation Manual

Page 2 - Caution; SELECTING THE INSTALLATION LOCATION; INDOOR UNIT

2 330 mm 360 mm 500 mm 840 mm 1. THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY ■ Do not install it by yourself (customer). Incomplete installation could cause injury due tofire, electric shock, the unit falling or leakage ofwater. Consult the dealer from whom you pur-chased the unit or special ...

Page 4 - FLARED CONNECTIONS; PIPING PREPARATION; A CASE OF SUSPENDING INDOOR UNIT FROM THE CEILING; MOUNTING INSTALLATION PLATE FIXING BOLTS; INDOOR UNIT INSTALLATION; Determine the locations of installation plate fixing bolts.

4 FLARED CONNECTIONS • This unit has flared connections on both indoor and outdoor sides.• Refrigerant pipes are used to connect the indoor and outdoor units as shown in the figure below.• Insulate both refrigerant and drain piping completely to prevent condensation. Limits Pipe length 25 m max. Hei...

Page 5 - FIXING OF INSTALLATION PLATES

5 4-1-(4) FRONT GRILLE REMOVAL • Remove front grille and transportation support. 4-1-(5) OPENING KNOCKOUT HOLE • Remove knockout holes with hammering it. 4-1-(6) FIXING UNIT TO INSTALLATION PLATES 1. Suspending unit from installation plates. • Hoist unit so that hanging bolt (4) on the sides of unit...

Page 6 - A CASE OF INSTALLATING INDOOR UNIT ON THE WALL; Suspending unit from installation plate.; KNOCKOUT COVER

6 1028 mm 1065 mm 80 mm 95 mm 132 mm 300 mm 300 mm 155 mm Ø75 Ø75 4-2 A CASE OF INSTALLATING INDOOR UNIT ON THE WALL 4-2-(1) MOUNTING INSTALLATION PLATE FIXING BOLTS 1. Determine the locations of installation plate fixing bolts. • Use installation pattern to determine the locations of installation p...

Page 7 - POWER SUPPLY AND CONNECTING WIRE SPECIFICATIONS; INDOOR AND OUTDOOR CONNECTING WIRE CONNECTION; REFRIGERANT PIPE WORK

7 1 Use care not to make mis-wiring. 2 Firmly tighten the terminal screws to preventthem from loosening. 3 After tightening, pull the wires lightly to con-firm that they do not move. Loosen terminal screw Terminal block Connection details 4-4 POWER SUPPLY AND CONNECTING WIRE SPECIFICATIONS Use speci...

Page 8 - DRAIN PIPE CONNECTION; In case of connecting drain pipe

8 48 ° R50 (R2" ) - R60 80 38 ° R30 - R40 (R1.5") 80 Refrigerant pipe Refrigerant pipe Flare nut Refrigerant pipe (gas)OD ø15.88 Flare nut Refrigerant pipe (liquid)OD ø9.52 2. In case of connecting drain pipe D to drain-joint bush through drain hose. • Drain hose 7 which is contained in acce...

Page 9 - OUTDOOR UNIT INSTALLATION

9 N~ L~ 5. OUTDOOR UNIT INSTALLATION I N D O O R / O U T D O O R U N I T C O N N E C T I N G W I R E C O N N E C T I O N A N DOUTDOOR POWER SUPPLY CORD CONNECTION • Connect the indoor/outdoor unit connecting wire B from the indoor unit correctly on the terminal block. • For future servicing, give ex...

Page 10 - INDOOR/OUTDOOR UNIT CONNECTION FINISHING AND TEST RUN; Tools dedicated for the air conditioner with R410A refrigerant

10 A 90 ° 6. INDOOR/OUTDOOR UNIT CONNECTION FINISHING AND TEST RUN 6-1 Tools dedicated for the air conditioner with R410A refrigerant The following tools are required for R410A refrigerant. Some R22 tools can be substituted for R410A tools.The diameter of the service port on the stop valve in outdoo...

Page 11 - PIPE CONNECTION; Indoor unit connection; Outdoor unit connection; PURGING PROCEDURES · LEAK TEST; PURGING PROCEDURES

11 6-3 PIPE CONNECTION 1. Indoor unit connection • Connect both liquid and gas piping to the indoor unit. - Apply a thin coat of refrigerant oil on the seat surface of pipe. - For connection first align the center, then hand tighten the first 3 to 4 turns of flare nut. - Use tightening torque table ...

Page 12 - PROCEDURE

12 6-6 AUTO RESTART FUNCTION When the indoor unit is controlled with the remote controller, the operation mode, set temperature, and the fanspeed are memorized by the indoor electronic control P.C. board. The auto restart function sets to work themoment the power has restored after power failure, th...

Page 13 - FOR MOVEMENT AND MAINTENANCE; FRONT PANEL REMOVAL; GAS CHARGE; • Do not discharge the refrigerant into the atmosphere.

13 7. FOR MOVEMENT AND MAINTENANCE Front panel Lock 1 2 7-1 FRONT PANEL REMOVAL 1. Remove front grill. • Remove 3 screws. (See to 4-1-(4)) (Page 5). 2. Remove front panel. • Remove 10 screws as shown in the right.• Unlock front panel by pulling it toward yourself ( 1 ) and then pull it down as the a...

Mitsubishi MCFH-A18WV- Installation Manual

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