Instruction/ maintenance manual of the product PMFY-P08NBMU-E Mitsubishi Electronics
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SPLIT -TYPE, HEA T PUMP AIR CONDITIONERS TECHNICAL & SER VICE MANUAL No. OC341 REVISED EDITION-B INDOOR UNIT CONTENTS 1. TECHNICAL CHANGES ·······················2 2. FEA TURES ···········································2 3.
2 2 FEA TURES 1. Fresh Air Intake Air recycled indefinitely can become stale and stagnant with air quality suffering significantly . Fresh air is the answer and it is for this reason that the PMFY - series takes in air directly from outdoors.
3 P ART NAMES AND FUNCTIONS 3 Guide vane Air flow can be changed to horizontal by moving the guide vane to the left or right. Air intake Returns air from room. Filters Remove dust and pollutants from return air . Auto Air Swing V ane Disperses airflow up and down and adjusts the angle of airflow direction.
4 ● Wired remote controller ● ● ˚F˚C ˚F˚C ERROR CODE AFTER TIMER TIME SUN MON TUE WED THU FRI SAT ON OFF Hr AFTER FIL TER FUNCTION ONL Y1Hr .
5 4 SPECIFICA TION 4-1. SPECIFICA TIONS Note 1. Rating conditions Cooling: Indoor: D.B. 80°F W .B. 67°F outdoor: D.B. 95°F W .B. 75°F Heating: Indoor: D.B. 70°F outdoor: D.B. 47°F W .B. 43°F Note 2. The number indicated in < > is for the grille.
6 4-2. ELECTRICAL P ARTS SPECIFICA TIONS Parts name Service Ref. Symbol TH21 TH22 TH23 FUSE MF MV DP DS LEV TB2 TB5 TB15 Resistance 30˚F/15.8k " , 50˚F/9.6k " , 70˚F/6.0k " , 80˚F/4.8k " , 90˚F/3.9k " , 100˚F/3.2k " Resistance 30˚F/15.
7 4-3. AIR CAP ACITY T AKEN FROM OUTSIDE PMFY -P·NBMU-E series are capable of taking air from outside. When taking air from outside, the duct fan is used.
8 4-4. NOISE CRITERION CURVES 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMA TE THRESHOLD OF HEARING FOR CONTINUOUS NOISE NC-60 NC-50 NC-40 NC-30 NC-20 NC-70 OCT A VE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.
9 5 OUTLINES AND DIMENSIONS Details of fresh air intake hole Knockout 4- { 1/8(2.8) Burring hole Fresh air intake hole 4-5/16 (1 10) 9-1/16(230) 9-1/2 (235) or more 4-5/16 (1 10) Suspension bolt(M10 o.
10 6 WIRING DIAGRAM Note 1.At servicing for outdoor unit, always follow the wiring diagram of outdoor unit. 2.In case of using MA-Remote controller, please connect to TB15. (Remote controller wire is non-polar.) 3.In case of using M-NET, please connect to TB5.
11 Note 1.At servicing for outdoor unit, always follow the wiring diagram of outdoor unit. 2.In case of using MA-Remote controller, please connect to TB15. (Remote controller wire is non-polar.) 3.In case of using M-NET, please connect to TB5. (Transmission line is non-polar.
12 REFRIGERANT SYSTEM DIAGRAM 7 Strainer (#100mesh) Strainer pipe (#100mesh) Strainer (#100mesh) Strainer (#50mesh) Heat exchanger Thermistor TH21 <Room temperature detection> Thermistor TH23 &l.
13 8 MICROPROCESSOR CONTROL PAR-21MAA ON/OFF FILTER CHECK OPERATION CLEAR TEST TEMP. MENU BACK DAY MONITOR/SET CLOCK ON/OFF ˚F˚C ˚F˚C ERROR CODE AFTER TIMER TIME SUN MON TUE WED THU FRI SAT ON OFF Hr AFTER FILTER FUNCTION ONLY1Hr. WEEKLY SIMPLE AUTO OFF INDOOR UNIT CONTROL 8-1.
14 → 3 2 1 → Control modes Control details 3-1. Drain pump control • Always drain pump ON during the COOL and DR Y mode operation. (Regardless of the thermostat ON/ OFF) • When the operation mode is changed from COOL or DRY to any other mode (including Stop), the drain pump continues to run for 3 minutes.
15 Control modes Control details 1-1. Dry mode temperature is controlled by TH21. Dry mode ON Room temperature ] desired temperature + 2 ° F Dry mode OFF Room temperature [ desired temperature 1-2. Frozen prevention control No control function Indoor fan operation control depends on the compressor conditions.
16 Control modes Control details Set by remote controller . 2. Drain pump Remarks 1. Fan T ype Fan speed notch 4 speeds type [Low], [Medium2], [Medium1], [High] 3.
17 Control modes Control details 1-1. Minimum compressor off cycle is 3 minutes. • Room temperature [ desired temperature -2 ° F ···Thermo ON • Room temperature ] desired temperature ···Thermo OFF 1.
18 → Control modes Control details 2. Fan Remarks 2-3. Thermo OFF mode When the thermoregulating function changes to OFF, the indoor fan operates in [Extra low]. 2-4. Heat defrosting mode The indoor fan stops. No drain pump operation However , when the control changes from COOL or DR Y operation, the drain pump operates for 3 minutes.
19 1. Drain pump Control modes Control details HEA T mode for room temperature < Desired temperature COOL mode for room temperature ] Desired temperature (1) HEA T mode → COOL mode Room temperatu.
20 9 TROUBLE SHOOTING 9-1. HOW TO CHECK THE P ARTS PMFY -P06NBMU-E PMFY -P08NBMU-E PMFY -P12NBMU-E PMFY -P15NBMU-E PMFY -P06NBMU-E 1 PMFY -P08NBMU-E 1 PMFY -P12NBMU-E 1 PMFY -P15NBMU-E 1 Parts name Check points Disconnect the connector then measure the resistance with a tester .
21 4 [ 4 3 6 5 [ 3 2 [ 2 1 [ 1 [ 4 [ 3 [ 2 [ 1 Controller board Drive circuit Connector (CN60) DC12V Brown Red Blue Orange Y ellow White M 4 6 2 3 5 1 Blue Brown Y ellow Orange Red White Linear expans.
22 Output (Phase) Output { 1 1 ON { 2 ON { 3 OFF { 4 OFF 2 OFF ON ON OFF 3 OFF OFF ON ON 4 ON OFF OFF ON <Output pulse signal and the valve operation> 2 2 Linear expansion valve operation 3 3 T .
23 9-2. TROUBLESHOOTING Notes · High voltage is applied to the connecter (F AN) for the fan motor . Give attention to the service. · Do not pull out the connector (F AN) for the motor with the power supply on, doing so may result in damage to the board.
24 9-3. FUNCTION OF DIP SWITCH PMFY -P·NBMU-E PMFY -P·NBMU-E 1 Switch Function Remarks <Initial setting> ON OFF 1 234 567 8 9 10 Address board Operation by switch ON OFF Pole Built-in remote c.
25 0 5 9 4 8 3 7 2 6 1 0 5 9 4 8 3 7 2 6 1 0 5 9 4 8 3 7 2 6 1 0 5 9 4 8 3 7 2 6 1 0 8 F 7 E 6 D 5 C 4 B 3 A 2 9 1 0 8 F 7 E 6 D 5 C 4 B 3 A 2 9 1 220V (208V) 240V (230V) Rotary switch Rotary switch SW14 Connection No.
26 9-4. TEST POINT DIAGRAM PMFY -P06NBMU-E PMFY -P08NBMU-E PMFY -P12NBMU-E PMFY -P15NBMU-E PMFY -P06NBMU-E 1 PMFY -P08NBMU-E 1 PMFY -P12NBMU-E 1 PMFY -P15NBMU-E 1 LED1 Power supply (I.B) (Indoor unit : 208-230V) CNP Drain pump output (DP) Between 1 1 to 3 3 208-230V AC FUSE 6.
27 DISASSEMBL Y PROCEDURE 10 OPERA TING PROCEDURE PHOTOS&ILLUSTRA TIONS 1. Removing the intake grille (1) Press the of the air intake grille.(See figure 1) (2) Put your fingers on both ends of the air intake grille and let it down after the grille clicks.
28 3. Removing the nozzle Note when the nozzle is removed. · The insulation material (white) which prevents water drop is mounted to the side of vane motor . Remove the insulation material before removing nozzle. (See figure 4) ·After completing the service, re-mount the insulation material as before as shown in right figure.
29 OPERA TING PROCEDURE PHOTOS&ILLUSTRA TIONS 5. Removing the drain pump (1) Remove the panel. (2) Unhook the claw in the middle of nozzle and remove the drain pan. (3) Remove the address board cover . (4) Remove the electrical parts cover . (5) Disconnect the connector of drain pump.
30 11 P ARTS LIST (non-RoHS compliant) P ANEL P ARTS FOR PMFY -P06NBMU-E PMFY -P08NBMU-E PMFY -P12NBMU-E PMFY -P15NBMU-E PMP-16BMU 1 2 3 4 5 6 7 8 9 10 11 1 2 2 2 1 1 1 2 1 2 1 AIR OUTLET GRILLE LATCH PANEL HOOK GRILLE CATCH L.L.FILTER L.L.FILTER INTAKE GRILLE GRILLE CATCH RECEIVER COVER MAGNET SCREW CAP No.
31 FUNCTIONAL P ARTS PMFY -P06NBMU-E PMFY -P08NBMU-E PMFY -P12NBMU-E PMFY -P15NBMU-E 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1.
32 ELECTRICAL P ARTS PMFY -P06NBMU-E PMFY -P08NBMU-E PMFY -P12NBMU-E PMFY -P15NBMU-E 1 2 3 4 5 6 TB2 TB5 TB15 A.B I.B TERMINAL BLOCK TERMINAL BLOCK TERMINAL BLOCK ADDRESS BOARD CABLE ASSY INDOOR CONTROLLER BOARD 3P (L1,L2,G) 3P (M1,M2,S) 2P(1,2) with POWER BOARD No.
33 12 RoHS P ARTS LIST P ANEL P ARTS FOR PMFY -P06NBMU-E PMFY -P08NBMU-E PMFY -P12NBMU-E PMFY -P15NBMU-E PMFY -P06NBMU-E 1 PMFY -P08NBMU-E 1 PMFY -P12NBMU-E 1 PMFY -P15NBMU-E 1 PMP-16BMU 1 2 3 4 5 6 7 8 9 10 11 1 2 2 2 1 1 1 2 1 2 1 AIR OUTLET GRILLE LATCH PANEL HOOK GRILLE CATCH L.
34 FUNCTIONAL P ARTS PMFY -P06NBMU-E PMFY -P08NBMU-E PMFY -P12NBMU-E PMFY -P15NBMU-E PMFY -P06NBMU-E 1 PMFY -P08NBMU-E 1 PMFY -P12NBMU-E 1 PMFY -P15NBMU-E 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1.
35 ELECTRICAL P ARTS PMFY -P06NBMU-E PMFY -P08NBMU-E PMFY -P12NBMU-E PMFY -P15NBMU-E PMFY -P06NBMU-E 1 PMFY -P08NBMU-E 1 PMFY -P12NBMU-E 1 PMFY -P15NBMU-E 1 1 2 3 4 5 6 7 TB2 TB5 TB15 A.
HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAP AN c Copyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO., L TD. Distributed in Jul. 2007. No. OC341 REVISED EDITION-B PDF 9 Distributed in Aug. 2006. No. OC341 REVISED EDITION-A PDF 9 Distributed in Jun.
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