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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

TECHNICAL & SERVICE MANUAL

[Models]  

PLFY-P12NAMU-E
PLFY-P15NAMU-E
PLFY-P18NAMU-E
PLFY-P24NAMU-E
PLFY-P30NAMU-E
PLFY-P36NAMU-E

No. OC340

REVISED EDITION-A

INDOOR UNIT

CONTENTS

1. FEATURES····························································· 2

2. PART NAMES AND FUNCTIONS ························· 3

3. SPECIFICATIONS ·················································· 5

4. 4-WAY AIR FLOW SYSTEM ·································· 8

5. OUTLINES AND DIMENSIONS ····························· 11

6. WIRING DIAGRAM ················································ 12

7. REFRIGERANT SYSTEM DIAGRAM······················· 13

8. MICROPROCESSOR CONTROL ·························· 14

9. TROUBLE SHOOTING ·········································· 21

10. DISASSEMBLY PROCEDURE ······························ 26

11. PARTS LIST ··························································· 29

12. RoHS PARTS LIST ················································ 32

13. OPTIONAL PARTS················································· 35

August 2006

R410A / R22

NOTE:
• This manual describes only

service data of the indoor
units.

• RoHS compliant products have

<G> mark on the spec name
plate.

• For servicing of RoHS compli-

ant products, refer to the RoHS
PARTS LIST.

Revision:

• RoHS PARTS LIST is added.
• Some descriptions have been 

modified.

• Please void OC340.

OC340A--1.qxp  06.7.25 0:39 PM  Page 1

Содержание City Multi Series PLFY-P12NAMU-E

Страница 1: ...DIMENSIONS 11 6 WIRING DIAGRAM 12 7 REFRIGERANT SYSTEM DIAGRAM 13 8 MICROPROCESSOR CONTROL 14 9 TROUBLE SHOOTING 21 10 DISASSEMBLY PROCEDURE 26 11 PARTS LIST 29 12 RoHS PARTS LIST 32 13 OPTIONAL PARTS...

Страница 2: ...eating capacity PLFY P12NAMU E 12 000 13 500 Btu h PLFY P15NAMU E 15 000 17 000 Btu h PLFY P18NAMU E 18 000 20 000 Btu h PLFY P24NAMU E 24 000 27 000 Btu h PLFY P30NAMU E 30 000 34 000 Btu h PLFY P36N...

Страница 3: ...DAY MONITOR SET CLOCK ON OFF Set Temperature buttons Down Up Timer Menu button Monitor Set button Mode button Return button Set Time buttons Back Ahead Timer On Off button Set Day button Opening the d...

Страница 4: ...n prohib ited by a master controller Timer Is Off indicator Indicates that the timer is off Temperature Setting Shows the target temperature Day of Week Shows the current day of the week Time Timer Di...

Страница 5: ...P18NAMU E PLFY P24NAMU E PLFY P30NAMU E PLFY P36NAMU E 12 000 13 500 0 14 0 14 0 68 0 68 390 420 460 490 350 380 410 440 24 27 28 30 18 000 20 000 0 14 0 14 0 68 0 68 490 530 570 640 470 500 530 600...

Страница 6: ...0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz PLFY P18NAMU E High Medium1 Medium2 Low NOTCH 33 31 28 27 SPL dB LINE 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD O...

Страница 7: ...E LEVEL dB re 0 0002 MICRO BAR BAND CENTER FREQUENCIES Hz PLFY P36NAMU E High Medium1 Medium2 Low NOTCH 44 43 40 37 SPL dB LINE 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMAT...

Страница 8: ...6 pole OUTPUT 110W D176P110MS Inner thermostat OPEN 266 F i 9_F 6 pole OUTPUT 70W D17D6P70MS MSBPC20M13 DC12V 300 phase PLD 12220ME 2 INPUT 12 10 8W 24R Hr Thermistor resistance 30_F 6 3k 50_F 3 9k 7...

Страница 9: ...r intake hole Fresh air intake hole diagram Unit inch 3 1 8 Burring hole 4 29 32 Burring hole pitch 3 15 16 Cut out hole Refrigerant pipe Drain pipe Ceiling surface 120_ 1 2 0 _ w6 7 32 4 3 INTERLOCKI...

Страница 10: ...ultifunction casement High efficiency filter Taking air into the unit Multifunction casement Standard filter Multifunction casement High efficiency filter Taking air into the unit 4 4 FRESH AIR INTAKE...

Страница 11: ...M10 Drain hole Vane motor M M M M Air intake hole Air outlet hole Air outlet hole 6 1 4 159 25 32 1 25 32 20 45 25 32 1 25 32 20 45 6 1 4 159 1 26 23 13 16 605 33 27 32 35 13 16 860 910 33 1 16 840 D...

Страница 12: ...RED RED ORN YLW WHT BLU RED P B 2 1 2 1 10 0 0 0 1 2 w2 Use Copper Supply Wire w2 TERMINAL BLOCK SYMBOL A B SW1 SW5 SW11 SW12 SW14 SWA SWB SWC SWITCH CN24 CN25 CN27 CN32 CN51 CN52 F C FUSE SW2 SW3 SW4...

Страница 13: ...r TH22 Linear expansion valve Gas pipe Liquid pipe Flare connection Refrigerant flow in cooling Refrigerant flow in heating PLFY P12NAMU E PLFY P24NAMU E PLFY P15NAMU E PLFY P30NAMU E PLFY P18NAMU E P...

Страница 14: ...nutes Room temperature desired temperature 2 F Thermo ON Room temperature desired temperature Thermo OFF 1 2 Anti freezing control Detected condition When the liquid pipe temp TH22 is 32 F or less in...

Страница 15: ...or temperature rise t Temperature of drain sensor before current is applied T0 Temperature of drain sensor after current is applied T1 t T1 T0 1 Initial setting Start at COOL mode and horizontal vane...

Страница 16: ...OFF time min Less than 64 F Over 64 F ON OFF T1 83 F 83 F T1 79 F 79 F T1 75 F 75 F T1 Unconditional 9 3 7 3 5 3 3 3 10 3 Dry thermo OFF 2 Fan Note Remote controller setting is not acceptable Dry the...

Страница 17: ...ther 6 minutes 2 2 Liquid level detection method The liquid level is detected by determining whether or not the drain sensor is submerged based on the amount the temperature rises after self heating t...

Страница 18: ...rminating the hot adjuster mode A C B Extra Low Low Set fan speed by the remote controller Hot adjuster mode 1 2 2 Preheating exclusion mode When the condition changes the auxiliary heater ON to OFF t...

Страница 19: ...ates for 3 minutes 1 Initial setting OFF HEAT last setting When changing the mode from exception of HEAT to HEAT operation Downward C 2 Vane position Horizontal Downward A Downward B Downward C Swing...

Страница 20: ...n turned ON for 6 minutes the drain pump is kept ON for a further 6 minutes 1 2 Liquid level detection method The liquid level is detected by determining whether or not the drain sensor is submerged b...

Страница 21: ...e next page for a detail Refer to the next page for a detail Room temperature thermistor TH21 Liquid pipe thermistor TH22 Gas pipe thermistor TH23 1 2 Red Red 1 2 3 Normal 4 3k 9 6k Abnormal Open or s...

Страница 22: ...Thermistor for lower temperature Linear expansion valve 1 1 Operation summary of the linear expansion valve Linear expansion valve open close through stepping motor after receiving the pulse signal f...

Страница 23: ...osed all the way It is not necessary to exchange the linear expansion valve if the leakage is small and not making any trouble Thermistor Liquid pipe Linear expansion valve Motor will idle and make ti...

Страница 24: ...4degrees up Superheat setting temperature w6 Sub cool setting temperature Heat pump Not available Not available Not available First setting Down B C Not effective Effective 2degrees 10degrees 1 2 3 4...

Страница 25: ...lti function casement to the unit be sure to attach it to the option side in order to prevent the airflow reducing This is the switch to be used when the indoor unit is operated with R2 series outdoor...

Страница 26: ...screws to remove the box Electrical parts in the electrical box Indoor controller board power supply board Terminal block Power supply Terminal block Transmission Terminal block MA remote controller...

Страница 27: ...anel a little to remove the screws Slide the panel so that the screw comes to a large diameter of the oval hole which has two different diameters Photo 6 Photo 5 Photo 4 4 Remove the fan motor 1 Remov...

Страница 28: ...t 9 Remove the 2 screws of the coil 10 Pull out the heat exchanger 8 Removing the drain pump and drain sensor 1 Remove the panel See photo 5 2 Remove the bell mouth See photo 1 3 Remove the electrical...

Страница 29: ...ecification Q ty set Price Unit Amount Remarks Drawing No Wiring Diagram Symbol Recom mended Q ty PLFY P 12 15 18 24 30 36 NAMU E T7W E12 003 T7W E05 002 T7W E01 638 R01 E03 638 R01 E00 500 R01 E00 69...

Страница 30: ...UBBER MOUNT No Part No Part Name Specification Q ty set Price Unit Amount Remarks Drawing No Wiring Diagram Symbol Recom mended Q ty PLFY P NAMU E 12 18 1 1 1 1 1 1 1 1 4 15 1 1 1 1 1 1 1 1 4 24 1 1 1...

Страница 31: ...ER POWER BOARD CONTROLLER BOARD ROOM TEMPERATURE THERMISTOR ADDRESS BOARD ADDRESS CABLE TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK CAPACITOR CAPACITOR DRAIN PLUG DRAIN PLUG LEAD ASSY F M 2P 1 2 3P M...

Страница 32: ...Name Specification Q ty set Price Unit Amount Remarks Drawing No Wiring Diagram Symbol Recom mended Q ty PLFY P 12 15 18 24 30 36 NAMU E T7W E18 003 T7W E09 002 T7W E02 638 R01 E14 638 R01 E13 500 R0...

Страница 33: ...G G G G G G G G G G G G G G RoHS Part No Part Name Specification Q ty set Price Unit Amount Remarks Drawing No Wiring Diagram Symbol Recom mended Q ty PLFY P NAMU E 12 18 1 1 1 1 1 1 1 1 4 15 1 1 1 1...

Страница 34: ...LER BOARD ROOM TEMPERATURE THERMISTOR ADDRESS BOARD ADDRESS CABLE TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK CAPACITOR CAPACITOR DRAIN PLUG DRAIN PLUG LEAD ASSY F M 2P 1 2 3P M1 M2 S 3P L1 L2 GR 3 0...

Страница 35: ...TIONAL PARTS 13 13 1 MULTI FUNCTION CASEMENT Part No PAC SG03TM E 13 2 AIR OUTLET SHUTTER PLATE 20 SETS Part No PAC SG06SP E 13 3 HIGH EFFICIENCY FILTER ELEMENT PAC SG03TM E IS REQUIRED Part No PAC SG...

Страница 36: ...ibuted in Aug 2006 No OC340 REVISED EDITION A PDF 9 Distributed in Jun 2005 No OC340 PDF 10 Made in Japan New publication effective Aug 2006 Specifications subject to change without notice HEAD OFFICE...

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