Mitsubishi PEFY-P24NMSU-E- User Manual

Page 2 - SAFETY PRECAUTIONS; Before installation and electric work; Symbols used in the text; Carefully read the labels affixed to the main unit.

1 SAFETY PRECAUTIONS and install the unit at the specified place. - Improper installation may cause the unit to topple and result in injury. • Always use an air cleaner, humidifier, electric heater, and otheraccessories specified by Mitsubishi Electric. - Ask an authorized technician to install the ...

Page 3 - Precautions for devices that use

2 2. Precautions for devices that use Caution: • Do not use the existing refrigerant piping. - The old refrigerant and refrigerator oil in the existing piping con- tains a large amount of chlorine which may cause the refrigeratoroil of the new unit to deteriorate. • Use refrigerant piping made of C1...

Page 4 - FEATURES; Indoor unit; Ceiling Concealed; Models; kW

3 PEFY-P15NMHU-E PEFY-P18NMHU-E PEFY-P24NMHU-E PEFY-P27NMHU-E PEFY-P30NMHU-E PEFY-P36NMHU-E PEFY-P48NMHU-E PEFY-P54NMHU-E PEFY-P72NMHU-E PEFY-P96NMHU-E 4.4 / 5.0 5.3 / 5.9 7.0 / 7.9 7.9 / 8.8 8.8 / 10.0 10.6 / 11.7 14.1 / 15.8 15.8 / 17.6 21.1 / 23.4 28.1 / 31.7 FEATURES 1 Indoor unit Ceiling Concea...

Page 5 - PART NAMES AND FUNCTIONS; Remote controller; Air inlet; ment of room temperature.

4 PART NAMES AND FUNCTIONS 2 ● Indoor (Main) Unit ● Remote controller [Operation buttons] [PAR-21MAA] ● Once the controls are set, the same operation mode canbe repeated by simply pressing the ON/OFF button. Air inlet Air outlet 1 [Set Temperature] Button 2 [Timer Menu] Button[Monitor/Set] Button 3 ...

Page 6 - O L

5 [Display] C C ON/OFF CENTRALLY CONTROLLED ERROR CODE CLOCK ON OFF CHECK CHECK MODE FILTER TEST RUN FUNCTION 1Hr. NOT AVAILABLE STAND BY DEFROST TEMP. A B C E P M FK D O L G N I H J Q A Current time/Timer B Centralized control C Timer OFF D Timer indicator E Operation mode: COOL, DRY, AUTO, FAN, HE...

Page 7 - SPECIFICATION

3 SPECIFICATION 3-1. Specification Notes: *1 Cooling/Heating capacity indicates the maximum value at operation under the following condition. Cooling: Indoor: 26.7 ˚C [80 ˚F] DB/19.4 ˚C [67 ˚F] WB Outdoor: 35 ˚C [95 ˚ F] DB Heating: Indoor: 21.1 ˚C [7 0 ˚ F] DB Outdoor: 8.3 ˚C [47 ˚F] DB/6.1 ˚C [ 43...

Page 9 - OUTLINES AND DIMENSIONS

8 4 OUTLINES AND DIMENSIONS PEFY-P15·18·24·27·30·36·48·54NMHU-E Unit :mm(in.) mm(in.) 1:R410A outdoor unit 2:R22 outdoor unit Air inlet Air outlet Model:P15~30(Note3) When installing the drain water lifting-up mech(option). 2x4- ø 3(1/8) 2x6- ø 3(1/8) 3 780 450 10 500 11 50 550 600 680 754 800 1030 ...

Page 11 - WIRING DIAGRAM; A in the chart is the connector for a drain pump test run operation.

10 5 WIRING DIAGRAM PEFY-P15·18·24·27·30·36·48·54NMHU-E )( S(SHIELD) G PARTS LOCATION INSIDE SECTION OF CONTROL BOX 2 11 2 F2 F1 AC250V 6.3A T ( ) AC250V 5A F CN24 CN22 CN27 CN25 CN23 5 FAN2 31 LED1 LED2 CN32 CN52 CN51 CN41 1 2 CN31 CN31 DS 31 2 1 CN2M M2 M1 1 3 CN3A 1 2 SW12 (2nd digit) SW11 (1st d...

Page 12 - SYMBOL EXPLANATION

11 PEFY-P72·96NMHU-E S(SHIELD) PARTS LOCATION LEV adapter board INSIDE SECTION OF CONTROL BOX ) ( () AC250V 5A F AC250V 6.3A T 1 2 2 1 1 2 CN27 CN22 CN23 CN24 CN25 531 FAN2 51F LED2 LED1 CN41 CN51 CN52 CN32 SW7 51F 56 52F G L3 L2 CR SW5 2 1 I.B. CN2M X01 FAN3 CNP CND CNT CN60 CN31 CN21 CN20 CN81 1 2...

Page 13 - REFRIGERANT SYSTEM DIAGRAM; Capacity; Capacity

12 REFRIGERANT SYSTEM DIAGRAM 6 Strainer (#100mesh) Strainer (#100mesh) Heat exchanger Room temperature thermistor TH21 Gas pipe thermistor TH23 Liquid pipe thermistor TH22 Linear expansion valve Gas pipe Flared joints(Type 15~54) Brazed joints(Type 72·96) Gas pipe PEFY-P15NMHU-E PEFY-P18NMHU-E PEFY...

Page 14 - TROUBLE SHOOTING

13 7 TROUBLE SHOOTING 7-1. How to check the parts Room temperaturethermistor (TH21) Liquid pipe thermistor (TH22) Gas pipe thermistor (TH23) Trans Fan motor Fan motor Linear expansionvalve Disconnect the connector, then measure the resistance using a tester.(Sorrounding temperature 10 ° C~30 ° C[50 ...

Page 15 - Make sure that power source is turning off.; Indoor unit control board; ) Indoor unit address setting rule is different by each field work.; Indoor unit do not run without address setting in field.

14 7-2. Setting of address switch Make sure that power source is turning off. ON OFF 1 2 3 4 5 6 7 8 9 10 S W 1 Indoor unit control board < At delivery (All models)> S W 2 S W 3 1)In case using M-NET remote controller, address is set by rotary switches.(SW11,SW12) * It is not necessary setting...

Page 16 - unit

15 7-3. Setting of Dip-switch (at delivery) 7-4. Attention for test run 1 2 3 4 5 6 7 8 9 10 1 2 3 4 5 6 7 8 9 10 1 2 3 1 2 3 4 5 6 S W 1 S W 2 ON OFF ON OFF ON OFF ON OFF S W 3 S W 4 5 ON OFF 220V240V S W 5 1 2 3 S W 4 5 1 2 3 S W 4 5 1 2 3 S W 4 5 1 2 3 S W 4 5 1 2 3 S W 4 5 1 2 3 S W 4 5 1 2 3 S ...

Page 17 - DISASSEMBLY PROCEDURE; OPERATING PROCEDURE; Removing the terminal bed cover

16 8 DISASSEMBLY PROCEDURE OPERATING PROCEDURE PHOTOS Models 15~541.Removing the control box cover (1) Remove the fixing screws (two) of the control box (A), and remove the cover. (Fig. 1) *At this stage, the following servicing is possible. 1 Operation and check of the switches (listed below) which...

Page 18 - Removing the control box cover

17 OPERATING PROCEDURE PHOTOS Be careful on removing heavy parts. Fig.4 Fig.5 Models 72 · 96 1.Removing the control box cover (1) Remove the fixing screws (four) of the control box cover (C), and remove the cover. (Fig. 4) *At this stage, the following servicing is possible.(Fig. 5) 1 Operation and ...

Page 19 - (1) Remove the control box cover and terminal bed cover with; Control box

18 Fig.1 Fig.2 Fig.3 Fig.4 8-2. FAN and FAN MOTOR OPERATING PROCEDURE PHOTOS Models 15~541.Removing the control box. (1) Remove the control box cover and terminal bed cover with procedure 8-1. (2) Remove the fan motor connectors.(3) Remove the fixing screws (two) of the control box and slide the con...

Page 20 - Arrow 1; (1) Remove the bell mouse of the front fan motor with procedure

19 (A) (D) Arrow 1 Motor (A) OPERATING PROCEDURE PHOTOS (4) Slide the motor (A) with motor base (D) in direction of allow 1 . (Fig. 5) Models 36 · 48 · 54 *Motor maintenance procedure is almost 15~30 modelsprocedure.Models 36~54 have twin shaft motor.After removing thefan and fan case which are in f...

Page 21 - (5) Move the control box to place that is not block operation.; Removing the fan motor; Be careful on removing heavy parts.

20 Fig.7 Fig.8 Fig.9 Fig.10 OPERATING PROCEDURE PHOTOS Models 72 · 961.Removing the control box. (1) Remove the control box cover1 with procedure 8-1.(2) Remove the fixing screws (four) of the control cover 2, and remove the control cover2. (Fig. 7) (3) Remove the fan motor connectors.(4) Remove the...

Page 22 - Notice: It's necessary using the driver over 30cm length to

21 OPERATING PROCEDURE PHOTOS (3) After removing the fixing screws (H)(as shown models 36·48·54) of the front fan case(B) and remove the fan.Pull the fan case (B). (4) Remove the fixing screws (K)(three) of the bell mouse (J) attached fan case (L), and remove the bell mouse (J).(Fig.12) (5) Remove t...

Page 25 - *Removerd heat exchanger is as shown Fig .6

24 OPERATING PROCEDURE PHOTOS (4) Remove the maintenance cover.(fixing screws : two) (Fig. 4)(5) Remove the heat exchanger.(fixing screws : four) (Fig. 3,5) *Removerd heat exchanger is as shown Fig .6 Fig.4 Fig.5 Fig.6 Be careful on removing heavy parts. Fixing screws Maintenance cover Fixing screws

Page 26 - (1) Remove the refrigerant piping and drain hose from main

25 Bottom plate Drainpan Fixing screws OPERATING PROCEDURE PHOTOS Models 72 · 96 1.Removing the heat exchanger. (1) Remove the refrigerant piping and drain hose from main unit.(Be care that water is not leaking from drain hose. ) (2) Remove the power supply wire and the transmission line. (Make sure...

Page 27 - *Removerd heat exchanger is as shown Fig.12

26 OPERATING PROCEDURE PHOTOS (7) Remove the fixing screws (three) of the heat exchanger cover, and remove the cover. Remove the fixing screws(four) of the maintenance cover, and remove the cover. (Fig.10) (7) Remove the heat exchanger. Fixing screws(non-piping side) : two (Fig. 9)Fixing screws(pipi...

Page 29 - Gas sensor

28 8-6. SENSOR POSITION ● PEFY-P15NMHU-E ● PEFY-P18· 24NMHU-E ● PEFY-P27· 30NMHU-E ● PEFY-P36 · 48NMHU-E ● PEFY-P54NMHU-E ● PEFY-P72 · 96NMHU-E Liquid sensor Liquid sensor( 72·96) Liquid sensor Liquid sensor Liquid sensor Liquid sensor Gas sensor Gas sensor Gas sensor Gas sensor Gas sensor(48) Gas s...

Page 31 - 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 PEFY-P24NMSU-E- User Manual

Table of Contents:

Summary

Other Mitsubishi Models