Vermont Casting MSZ-D36NA - Manuals

77 4 OUTLINES AND DIMENSIONS Unit : inch MSZ-D30NAMSZ-D36NAMSY-D30NAMSY-D36NA Wireless remote controller Piping Insulation Liquid line Drain hose Gas line Indoor unit Air out Air in 45-1/2 46-1/16 14-3/8 2-15/16 33-11/16 9-1/2 2-11/16 2-3/16 20-7/8 17-11/16 Installation plate Piping Drain hose Wall ...

8 5 WIRING DIAGRAM MSZ-D30NAMSZ-D36NAMSY-D30NAMSY-D36NA

9 REFRIGERANT SYSTEM DIAGRAM 6 MSZ-D30NAMSZ-D36NAMSY-D30NAMSY-D36NA Refrigerant flow in coolingRefrigerant flow in heating Unit:inch Indoor heat exchanger Room temperature thermistorRT11 Refrigerant pipe ø5/8 (with heat insulator) Flared connection Indoor coilthermistorRT12(main) Refrigerant pipe ø3...

10 7 SERVICE FUNCTIONS 7-2. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATION A maximum of 4 indoor units with wireless remote controllers can be used in a room. In this case, to operate each indoor unit individually by each remote controller, P.C. boards of remote controller must be modified accordi...

7-3. AUTO RESTART FUNCTION When the indoor unit is controlled with the remote controller, the operation mode, the set temperature, and the fan speed are memorized by the indoor electronic control P.C. board. The “AUTO RESTART FUNCTION” sets to work the moment power has restored after power failure. ...

12 8 MICROPROCESSOR CONTROL NOTE: Last setting will be stored after the unit is turned OFF with the remote controller. Indoor unit receives the signal of the remote controller with beeps. WIRELESS REMOTE CONTROLLER .) Signal transmitting section Operation display section Temperature buttons OPERATE/...

15 (3) Positioning To confirm the standard position, the vane moves until it touches the vane stopper. Then the vane is set to the selected angle. (a) The operation starts or finishes (including timer operation). (b) The test run starts. 8-7. AUTO VANE OPERATION 1. Horizontal vane (1) Vane motor dri...

16 6 1 2 3 4 5 SWING 2. Vertical vane (1) Vane motor drive These models are equipped with a stepping motor for the vertical vane. The rotating direction, speed, and angle of the motor are controlled by pulse signals (approx. 12 V) transmitted from microprocessor. (2) The vertical vane angle and mode...

17 8-8. TIMER OPERATION1. How to set the time (1) Check that the current time is set correctly. NOTE : Timer operation will not work without setting the current time. Initially “0:00” blinks at the current time display of TIME MONITOR, so set the current time correctly with CLOCK SET button. How to ...

18 EMERGENCY OPERATION switch E.O. SW E.O. SW 8-9. EMERGENCY/TEST OPERATION In case of test run operation or emergency operation, use EMERGENCY OPERATION switch on the front of the indoor unit. Emergency operation is available when the remote controller is missing, has failed or the batteries of the...

19 9-1. CAUTIONS ON TROUBLESHOOTING 1. Before troubleshooting, check the following 1) Check the power supply voltage. 2) Check the indoor/outdoor connecting wire for miswiring. 2. Take care of the following during servicing 1) Before servicing the air conditioner, be sure to turn off the unit first ...

20 20 Outline of the function This air conditioner can memorize the abnormal condition which has occurred once. Even though LED indication listed on the troubleshooting check table (9-4.) disappears, the memorized failure details can be recalled. This mode is very useful when the unit needs to be re...

25 25 A Check of indoor fan motor OPERATION INDICATOR lamp flashes 3-time.Indoor fan does not operate. 9-6. TROUBLESHOOTING FLOW The indoor fan motor error has occurred, and the indoor fan doesn't operate. Turn OFF the power supply. Is there any foreign matter that interferes the rotation of the lin...

26 26 B Check of remote controller and receiver P.C. board Indoor unit operates by pressing EMERGENCY OPERATION switch, but does not operate with the remote controller. Check if the remote controller is exclusive for this air conditioner. Does the unit operate with the remote controller? OK Yes No (...

27 27 The unit does not operate with the remote controller.Also, OPERATION INDICATOR lamp does not light up by pressing EMERGENCY OPERATION switch. C Check of indoor electronic control P.C. board and indoor fan motor Turn OFF the power supply.Remove indoor fan motor connector CN211 and vane motor co...

28 28 D How to check miswiring and serial signal error • Unit cannot operate neither by the remote controller nor by EMERGENCY OPERATION switch. Indoor unit does not operate.• OPERATION INDICATOR lamp flashes ON and OFF every 0.5-second. Outdoor unit does not operate. Turn OFF the power supply. Is t...

29 29 E Electromagnetic noise enters into TV sets or radios Yes Is the unit grounded? No Ground the unit. Yes Is the distance between the antennas and the indoor unit within 9.91 ft., or is the distance between the antennas and the outdoor unit within 9.91 ft.? No Extend the distance between the ant...

31 OPERATING PROCEDURE PHOTOS 1. Removing the panel (1) Press and unlock the knobs on both sides of the front panel and lift the front panel until it is level, and then pull the hinges forward to remove the front panel. (2) Remove the screw caps of the panel. Remove the screws of the panel. (3) Hold...

32 OPERATING PROCEDURE PHOTOS 3. Removing the nozzle assembly (1) Remove the panel and the corner box. (Refer to 1.) (2) Remove the electrical cover. (Refer to 2.)(3) Remove the electrical side cover, disconnect the vane motor connector. (4) Pull out the drain hose from the nozzle assembly, and remo...

OPERATING PROCEDURE PHOTOS 6. Removing the line flow fan and the indoor fan motor (1) Remove the panel and the corner box. (Refer to 1.)(2) Remove the electrical box. (Refer to 2.)(3) Remove the nozzle assembly. (Refer to 3.)(4) Remove the water cover.(5) Loosen the screw of the line flow fan.(6) Re...

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN Copyright 2008 MITSUBISHI ELECTRIC ENGINEERING CO.,LTD Distributed in Feb. 2008. No. OBH501 7Made in Japan New publication, effective Feb. 2008Specifications subject to change without notice. TM