Mitsubishi Mr. Slim NH41NAD- User Manual

Page 2 - FEATURES; HIGH RELIABILITY AND EASY SERVICING; Model

2 1 FEATURES Rear Right Base Front 1. REDI-CHARGED REFRIGERANT SYSTEM The industry’s first redi-charged refrigerant system.There is no need to adjust the amount of refrigerant to match the piping length on- site unless lines exceed 100ft. You will see a major reduction in installation time and labor...

Page 3 - TECHNICAL CHANGE

3 TECHNICAL CHANGE 2 PU18EK ➔ PU18EK 1 PU24EK ➔ PU24EK 1 PU30EK ➔ PU30EK 1 PU36EK ➔ PU36EK 1 PU42EK2 ➔ PU42EK2 1 1. OUTDOOR CONTROLLER BOARD has been changed.2. TRANSFORMER has been changed. PU18EK ➔ PU18EK 1 • CONTACTOR has been changed. PU24EK 1 ➔ PU24EK 2 PU30EK 1 ➔ PU30EK 2 PU36EK 1 ➔ PU36EK 2 •...

Page 4 - COMBINATION OF INDOOR AND OUTDOOR UNITS; PL • AK; PU; PK • EK; PART NAMES AND FUNCTIONS

4 3 COMBINATION OF INDOOR AND OUTDOOR UNITS Indoor unit Models Service manual No. PL • AK PL • FK(2) PC • EK PK • FL(3) PC • GK PK • FK(3) OC246 OC001 SECOND EDITION OC003 SECOND EDITION OC194 OC185A, OC275 OC278 OC121, OC196AOC274 18 24 30 36 42 PU Outdoor unit — — — — — — — — — — — — — — — — — — —...

Page 5 - SPECIFICATIONS; Operating range; In case of the wind baffle installed.

5 SPECIFICATIONS 5 OUTDOOR UNIT MODELS External finish Power supply Max.fuse size (time delay) Min.ampacity Fan motor Compressor Crankcase heater Refrigerant control Sound level Dimensions Weight Control voltage (by built-in transformer) REFRIGERANT REFRIGERANT PIPING Pipe size Connection method Bet...

Page 6 - DATA; COMPRESSOR TECHNICAL DATA; Factory

6 6 DATA 1. ADDITIONAL REFRIGERANT CHARGE (R22 : oz) 2. COMPRESSOR TECHNICAL DATA PU12EK PU42EK7 PU42EK7 1 PU42EK7 2 Piping length (one way) 100 ft 115 ft 130 ft 145 ft 160 ft 164 ft Factory charged Service Ref. PU24EK PU24EK 1 PU24EK 2 PU24EK 3 PU30EK PU30EK 1 PU30EK 2 PU30EK 3 PU18EK PU18EK 1 PU36...

Page 7 - NOISE CRITERION CURVES

7 3. NOISE CRITERION CURVES 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 OCT A VE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR BAND CENTER FREQUENCIES, Hz PU12EK 50 SPL(dB) LINE 90 80 70 60 50...

Page 8 - PU42EK7; MICROPHONE

8 90 80 70 60 50 40 30 20 10 OCT A VE BAND SOUND PRESSURE LEVEL, dB re 0.0002 MICRO BAR 63 125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz APPROXIMATETHRESHOLD OFHEARING FORCONTINUOUSNOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 SPL(dB) LINE 56 PU42EK2 PU42EK7PU42EK2 1 PU42EK7 1 PU42EK7 2 3....

Page 9 - OUTLINES AND DIMENSIONS; Outdoor Unit PU12EK

9 OUTLINES AND DIMENSIONS 7 5-7/16 29/32 9/32 11-5/8 1-5/16 13-11/32 3-1/32 20-5/8 1-9/16 20-5/8 11-3/32 11-11/16 17-15/32 25-9/16 34-1/4 11-7/8 2-3/8 2-3/8 4-3/4 2-1/16 1-3/4 4-1/8 15/32 2-9/16 21/32 3-5/32 31/32 max. R 1/4 R25/32 R25/32 Bottom piping hole Front right piping holes - detail Figures ...

Page 10 - Outdoor Unit PU18EK

10 Unit : inch Outdoor Unit PU18EK PU18EK 1 T erminal block for indoor and outdoor unit connection T erminal block for power line Ground terminal Handle for moving Service panel Refrigerant pipe (Flared) 5/8 Knock out hole for front piping 4-3/4 (refrigerant. drainage and wiring) 4-1/8 Drain hole Dr...

Page 11 - Outdoor Unit PU24EK PU30EK

11 Unit : inch Outdoor Unit PU24EK PU30EK PU24EK 1 PU30EK 1 PU24EK 2 PU30EK 2 PU24EK 3 PU30EK 3 T erminal block for indoor and outdoor unit connection T erminal block for power line Ground terminal Handle for moving Service panel Refrigerant pipe (Flared) PU24EK [ 5/8 PU30EK [ 3/4 Knock out hole for...

Page 12 - Outdoor Unit PU36EK

12 T erminal block for indoor and outdoor unit connection T erminal block for power line Ground terminal Handle for moving Service panel Refrigerant pipe (Flared) [ 3/4 Knock out hole for front piping 4-3/4 (refrigerant. drainage and wiring) 4-1/8 Drain hole Drain hole 2-U-shaped notched holes 2-1/1...

Page 13 - WIRING DIAGRAM

13 WIRING DIAGRAM 8 Main functions of LED (when both No. 1 and 2 of € SW3 are ¨OFF¨) NOTES :If the operation stops to function of the protection device, the check display flashes. How to use SW1 and 2 ● Pressing € SW1 erases the past check contents loaded on the micro- computer. ● The output display...

Page 17 - Main functions of LED

17 MODEL : PU42EK7 1 PU42EK7 2 51C functions (32 ° F/15k Ω ,77 ° F/5.4k Ω ) WHT WHT CN2 26C functions 26C SYMBOL CN3<O.B> CN4T<O.B> CH C3, 4 C FC<O.B> F<O.B> NAME SYMBOL NAME SYMBOL NAME CONNECTOR (CONNECTING WIRES INDOOR/OUTDOOR) CONNECTOR(TRANSFORMER) CRANKCASE HEATER RUN C...

Page 18 - REFRIGERANT SYSTEM DIAGRAM

18 9 REFRIGERANT SYSTEM DIAGRAM Outdoor unit Refrigerant pipe(Option) 5/8(with heat insulator) Outdoorheatexchanger Refrigerant pipe(Option) 3/8(with heat insulator) Flexible tube Flared connection Ball valve Fusible plug HighPressureSwitch Outdoor coilthermistorTH3 Ball valve Flow of refrigerant (w...

Page 19 - MICROPROCESSOR CONTROL; OUTDOOR MICROPROCESSOR CONTROL; Protection function; Control by outdoor coil thermistor

19 MICROPROCESSOR CONTROL 10 OUTDOOR MICROPROCESSOR CONTROL 1. Protection function (1) As soon as a reversed phase, an open phase, or a P. C. board trouble is sensed, the operation stops and the check code is displayed by LED on the outdoor controller board. (2) When a protection function such as hi...

Page 20 - Function of switches on the outdoor controller board

20 6. Fixed fan-output While the compressor is operating and the fan output step is indicated by LED, pushing SW2 fixes the fan output of that time. The fixed fan-output can be released when either of the following conditions is satisfied. 1 SW2 is pushed again. 2 SW3 setting is changed. 3 The compr...

Page 21 - TROUBLESHOOTING

21 TROUBLESHOOTING 11 1. SERVICE DATA INDICATION BY SWITCHES ON OUTDOOR CONTROLLER BOARD Setting dip switches SW2 and SW3 on the outdoor controller board enables LED to show the output state and check code.Output state is shown by LED lighting, and check code by blinking. SW1 : Turning SW1 ON clears...

Page 24 - WRONG WIRING ON SITE; -1 Between remote controller and indoor unit

24 4. WRONG WIRING ON SITE 4-1 Between remote controller and indoor unit If wire is disconnected between the remote controller and the indoor unit, the POWER ON display does not appear despiteturning the power switch ON. The beep sound is not heard, either. 4-2 Phenomena due to wrong wiring between ...

Page 25 - DISASSEMBLY INSTRUCTIONS; OPERATING PROCEDURE; Photo 1; NOTE : All panels are clasped, and should be

25 DISASSEMBLY INSTRUCTIONS 12 OPERATING PROCEDURE PHOTOS 1. Electrical parts (1) Remove top panel (3 screws in front, 2 screws in rear)(2) Remove cover panel (1 screw). The panel is anchored by clicks to the side panel.Remove by pulling towards you. (3) Remove cover panel (1 screw). The panel is an...

Page 26 - Photo 4

26 OPERATING PROCEDURE PHOTOS 3. Heat Exchanger, Compressor (1) Remove the rear panel (2 screws in front, 1 screw on the side, 3 screws in the rear). Remove the valve bed, and openthe rear panel to the rear to remove. (2) Remove right side panel (4 screws).(3) Remove rear guard (3 screws).(4) Remove...

Page 27 - Screws

27 OPERATING PROCEDURE PHOTOS 1. Electrical parts (1) Remove top panel (3 screws in front, 2 screws in rear)(2) Remove cover panel (1 screw). The panel is anchored by clicks to the side panel.Remove by pulling towards you. (3) Remove cover panel (1 screw). The panel is clasped on the right and left ...

Page 29 - PARTS LIST

29 No. Parts No. Parts Name Specifications Remarks (Drawing No.) Wiring Diagram Symbol Q'ty / set PU 18EK 1 2 3 4 5 6 7 8 9 10 1 1 1 1 1 1 1 1 1 1 R01 A08 662 R01 A00 662 R01 A08 668 R01 A00 668 R01 A00 675 R01 A00 686 R01 A08 661 R01 A00 661 R01 A00 658 R01 A08 682 R01 A00 682 R01 A08 698 R01 A00 6...

Page 44 - TM

TM c Copyright 2001 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Aug. 2004 No.OC247 REVISED EDITION-E PDF 9Distributed in Aug. 2004 No.OC247 REVISED EDITION-D PDF 9Distributed in Dec. 2002 No.OC247 REVISED EDITION-C 17Distributed in Dec. 2002 No.OC247 REVISED EDITION-B 17Distributed in M...

Page 45 - 400 Lawrenceville Suwanee Road; Specifications are subject to change without notice.

3400 Lawrenceville Suwanee Road ● Suwanee, Georgia 30024 Toll Free: 800-433-4822 ● Toll Free Fax: 800-889-9904 www.mrslim.com Specifications are subject to change without notice.

Mitsubishi Mr. Slim NH41NAD- User Manual

Table of Contents:

Summary

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