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Mitsubishi Electric City Multi PMFY-P06NBMU-E Technical & Service Manual
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Mitsubishi Electric City Multi PMFY-P06NBMU-E Technical & Service Manual

Mitsubishi Electric City Multi PMFY-P06NBMU-E Technical & Service Manual

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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
Indoor unit
[Model names]
PMFY-P06NBMU-E
PMFY-P08NBMU-E
PMFY-P12NBMU-E
PMFY-P15NBMU-E
INDOOR UNIT
[Service Ref.]
PMFY-P06NBMU-E
PMFY-P06NBMU-E
PMFY-P08NBMU-E
PMFY-P08NBMU-E
PMFY-P12NBMU-E
PMFY-P12NBMU-E
PMFY-P15NBMU-E
PMFY-P15NBMU-E
REVISED EDITION-B
R410A / R22
Revision:
• PMFY-P06/08/12/15NBMU-E
added in REVISED EDITION-B.
• Some descriptions have been
modified.
1
• Please void OC341 REVISED
EDITION-A.
1
NOTE:
• This manual describes only
service data of the indoor units.
1
• RoHS compliant products have
<G> mark on the spec name
plate.
• For servicing RoHS compliant
1
products, refer to the RoHS
PARTS LIST.
CONTENTS
1. TECHNICAL CHANGES·······················2
2. FEATURES ···········································2
3. PART NAMES AND FUNCTIONS ········3
4. SPECIFICATION ···································5
5. OUTLINES AND DIMENSIONS············9
6. WIRING DIAGRAM·····························10
9. TROUBLESHOOTING ························20
10. DISASSEMBLY PROCEDURE···········27
11. PARTS LIST········································30
12. RoHS PARTS LIST·····························33
July 2007
No. OC341
are
1

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Summary of Contents for Mitsubishi Electric City Multi PMFY-P06NBMU-E

  • Page 1: Table Of Contents

    REVISED EDITION-B TECHNICAL & SERVICE MANUAL R410A / R22 Indoor unit Revision: [Model names] [Service Ref.] • PMFY-P06/08/12/15NBMU-E added in REVISED EDITION-B. PMFY-P06NBMU-E PMFY-P06NBMU-E • Some descriptions have been PMFY-P06NBMU-E modified. PMFY-P08NBMU-E • Please void OC341 REVISED PMFY-P08NBMU-E EDITION-A. PMFY-P08NBMU-E...

  • Page 2: Technical Changes

    TECHNICAL CHANGES PMFY-P06NBMU-E PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E PMFY-P15NBMU-E 1. FAN MOTOR(MF) has been changed. 2. CONTROLLER BOARD(I.B) has been changed. FEATURES Indoor Unit Models Cooling capacity / Heating capacity PMFY-P06NBMU-E 6,000 / 6,700 Btu/h PMFY-P08NBMU-E 8,000 / 9,000 Btu/h...

  • Page 3: Part Names And Functions

    PART NAMES AND FUNCTIONS Indoor Unit Auto Air Swing Vane Guide vane Disperses airflow up and down and adjusts the angle Air flow can be changed to horizontal of airflow direction. by moving the guide vane to the left or right. Horizontal Air Outlet Filters Air intake...
  • Page 4 Wired remote controller Display Section Day-of-Week “Sensor” indication For purposes of this explanation, Displayed when the remote controller Shows the current day of the week. all parts of the display are shown sensor is used. as lit. During actual operation, only the relevant items will be lit.

  • Page 5: Specification

    SPECIFICATION 4-1. SPECIFICATIONS PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E Item PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E Power Single phase 208-230V 60Hz V·Hz Cooling capacity 6,000 8,000 12,000 15,000 Btu/h Heating capacity 6,700 9,000 13,500 17,000 Btu/h Cooling 0.042 0.042 0.044 0.054 Input Heating 0.042 0.042...
  • Page 6 4-2. ELECTRICAL PARTS SPECIFICATIONS Service Ref. PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E Symbol PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E Parts name Room temperature TH21 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" thermistor Liquid pipe thermistor TH22 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/15.8k", 50˚F/9.6k", 70˚F/6.0k", 80˚F/4.8k", 90˚F/3.9k", 100˚F/3.2k"...
  • Page 7 11-3/8 4-{1/8 Fresh air intake hole Fresh air intake hole (Unit:inch) (Knockout) (Knockout) Service Ref. Air flow (Hi) Air capacity taken from outside PMFY-P06NBMU-E 300 CFM 60 CFM PMFY-P06NBMU-E PMFY-P08NBMU-E 320 CFM 64 CFM PMFY-P08NBMU-E PMFY-P12NBMU-E 320 CFM 64 CFM...

  • Page 8: Noise Criterion Curves

    4-4. NOISE CRITERION CURVES PMFY-P06NBMU-E PMFY-P08NBMU-E SPL(dB) LINE SPL(dB) LINE NOTCH NOTCH High High PMFY-P06NBMU-E PMFY-P12NBMU-E Medium1 Medium1 PMFY-P08NBMU-E Medium2 Medium2 PMFY-P12NBMU-E NC-70 NC-70 NC-60 NC-60 NC-50 NC-50 NC-40 NC-40 NC-30 NC-30 APPROXIMATE THRESHOLD OF HEARING FOR NC-20 NC-20 CONTINUOUS...

  • Page 9: Outlines And Dimensions

    OUTLINES AND DIMENSIONS PMFY-P06NBMU-E PMFY-P06NBMU-E Unit : in. (mm) PMFY-P08NBMU-E PMFY-P08NBMU-E (108) PMFY-P12NBMU-E PMFY-P12NBMU-E 4-1/4 PMFY-P15NBMU-E PMFY-P15NBMU-E (110) 4-5/16 more (235) 9-1/2 9-1/16(230) (110) 4-5/16 9-3/8(247) 2-11/16(69) grille side Outer 18-1/2(470) 1-9/16(40) 2-3/8(60) 11/16(17.5) 11/16(17.5) 9-1/16(230) 13/16(20) 1-25/32(45) 1-25/32(45) 13/16(20)

  • Page 10: Wiring Diagram

    WIRING DIAGRAM PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E DIGIT DIGIT DIGIT CONNECTION SW11 SW12 SW14 SWC 230V 208V...
  • Page 11 PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E DIGIT DIGIT DIGIT CONNECTION SW14 SWC SW11 SW12 230V 208V...

  • Page 12: Refrigerant System Diagram

    REFRIGERANT SYSTEM DIAGRAM PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E Thermistor TH23 Strainer (#100mesh) <Gas pipe temperature detection> Gas pipe Thermistor TH22 <Liquid pipe temperature detection> Flare connection Liquid pipe Heat exchanger Linear expansion valve Strainer (#50mesh) Strainer (#100mesh)

  • Page 13: Microprocessor Control

    MICROPROCESSOR CONTROL INDOOR UNIT CONTROL 8-1. COOL OPERATION <How to operate> 1 Press POWER ON/OFF button. TIME SUN MON TUE WED THU FRI SAT TIMER AFTER AFTER 2 Press the operation MODE button to display COOL. ERROR CODE FUNCTION ˚F˚C FILTER ˚F˚C 3 Press the TEMP.
  • Page 14 From the preceding page Control modes Remarks Control details 3. Drain pump 3-1. Drain pump control • Always drain pump ON during the COOL and DRY 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.

  • Page 15: Dry Operation

    8-2. DRY OPERATION <How to operate> 1 Press POWER ON/OFF button. TIME SUN MON TUE WED THU FRI SAT TIMER AFTER AFTER 2 Press the operation MODE button to display DRY. ERROR CODE FUNCTION ˚F˚C FILTER ˚F˚C 3 Press the TEMP. button to set the desired temperature. WEEKLY SIMPLE ONLY1Hr.

  • Page 16: Fan Operation

    8-3. FAN OPERATION <How to operate> 1 Press POWER ON/OFF button. TIME SUN MON TUE WED THU FRI SAT 2 Press the operation MODE button to display FAN. TIMER AFTER AFTER ERROR CODE FUNCTION ˚F˚C FILTER ˚F˚C WEEKLY SIMPLE ONLY1Hr. AUTO OFF TEMP.

  • Page 17: Heat Operation

    8-4. HEAT OPERATION <How to operate> 1 Press POWER ON/OFF button. 2 Press the operation MODE button to display HEAT. TIME SUN MON TUE WED THU FRI SAT 3 Press the TEMP. button to set the desired temperature. TIMER AFTER AFTER ERROR CODE FUNCTION...
  • Page 18 From the preceding page Control modes Control details Remarks 2-3. Thermo OFF mode 2. Fan When the thermoregulating function changes to OFF, the indoor fan operates in [Extra low]. 2-4. Heat defrosting mode The indoor fan stops. 3. Drain pump No drain pump operation However, when the control changes from COOL or DRY operation, the drain pump operates for 3 minutes.
  • Page 19 8-5. AUTO OPERATION [AUTOMATIC COOL/HEAT CHANGE OVER OPERATION] <How to operate> 1 Press POWER ON/OFF button. TIME SUN MON TUE WED THU FRI SAT 2 Press the operation MODE button to display AUTO. TIMER AFTER AFTER ERROR CODE FUNCTION 3 Press the TEMP. button to set the desired temperature. ˚F˚C FILTER ˚F˚C...

  • Page 20: Troubleshooting

    TROUBLE SHOOTING 9-1. HOW TO CHECK THE PARTS PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E Parts name Check points Thermistor (TH21) Disconnect the connector then measure the resistance with a tester. <Room temperature (At the ambient temperature 50 F~86 F) detection>...

  • Page 21: Linear Expansion Valve

    <Thermistor characteristic graph> < Thermistor for lower temperature > Thermistor <Room temperature detection> (TH21) Thermistor for Thermistor <Liquid pipe temperature detection> (TH22) lower temperature Thermistor <Gas pipe temperature detection> (TH23) Thermistor R =15k' ± 3% Fixed number of B=3480K ± 2% Rt=15exp { 3480( 273+(t-32)/1.8 30_F...
  • Page 22 <Output pulse signal and the valve operation> Output Output (Phase) Closing a valve : 1 Opening a valve : 4 The output pulse shifts in above order. • When linear expansion valve operation stops, all output phase become OFF. • At phase interruption or when phase does not shift in order, motor 2 2 Linear expansion valve operation does not rotate smoothly and motor will lock and vibrate.
  • Page 23 9-2. TROUBLESHOOTING Check method of indoor fan motor (fan motor / controller board) Notes · High voltage is applied to the connecter (FAN) for the fan motor. Give attention to the service. · Do not pull out the connector (FAN) for the motor with the power supply on, doing so may result in damage to the board. Self check Conditions : The indoor fan does not rotate.

  • Page 24: Function Of Dip Switch

    Power ON/OFF by breaker Effective Not effective Indoor controller board MODELS SW 2 MODELS SW 2 Before PMFY-P06NBMU-E PMFY-P12NBMU-E power Capacity 1 2 3 4 5 6 1 2 3 4 5 6 <Initial setting> supply code setting PMFY-P08NBMU-E PMFY-P15NBMU-E Set for each capacity.
  • Page 25 Effective Switch Pole Operation by switch Remarks timing SW11 Address board 1st digit address SW12 SW11 <Initial setting> setting Address setting should be done when M-NET SW12 SW11 remote controller is being used. SW12 2nd digit address setting Address board SW14 Before SW14...
  • Page 26 9-4. TEST POINT DIAGRAM PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E CN32 Connector (Remote switch) Capacity setting Model selection Function setting CN27 Connector (Damper) CN25 Drain pump output Connecter (DP) (Humidifier) Between 1 1 to 3 3 208-230V AC...

  • Page 27: Disassembly Procedure

    DISASSEMBLY PROCEDURE PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E Be careful when removing heavy parts. OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS Photo 1 1. Removing the intake grille Opening the air intake grille (1) Press the of the air intake grille.(See figure 1)
  • Page 28 OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS Photo 2 2. Removing the electrical parts box Claw in middle Nozzle Electrical parts of nozzle (1) Remove the panel. (2) Remove the address board cover. (3) Remove the electrical parts cover. (4) Disconnect the connectors of fan motor, vane motor, drain pump, room temperature thermistor, pipe temperature thermistor,...
  • Page 29 OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS Photo 6 Drain sensor Drain pump 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.

  • Page 30: Parts List

    PARTS LIST (non-RoHS compliant) PANEL PARTS FOR PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E PMP-16BMU Q'ty/set Wiring Recom- Remarks Part No. Diagram mended Part Name Specification (Drawing No.) Symbol Q'ty PMP-16BMU T7W E11 003 AIR OUTLET GRILLE LATCH PANEL HOOK GRILLE CATCH L.L.FILTER L.L.FILTER...
  • Page 31 FUNCTIONAL PARTS PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E Part number that is circled is not shown in the figure. Q'ty/set Wiring Recom- Remarks Part No. Part Name Specification PMFY-P · NBMU-E Diagram mended (Drawing No.) Symbol Q'ty 06/ 08 12/ 15 BEARING MOUNT...
  • Page 32 ELECTRICAL PARTS PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E Q'ty/set Wiring Recom- Remarks PMFY-P Part No. Part Name Specification Diagram mended (Drawing No.) 06/08/12/15 Symbol Q'ty NBMU-E T7W E11 716 3P (L1,L2,G) TERMINAL BLOCK T7W E17 716 3P (M1,M2,S) TERMINAL BLOCK TB15 2P(1,2)

  • Page 33: Rohs Parts List

    RoHS PARTS LIST PANEL PARTS FOR PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E PMP-16BMU Q'ty/set Wiring Recom- Remarks Diagram mended Part No. Part Name Specification (Drawing No.) Symbol Q'ty PMP-16BMU T7W E16 003 AIR OUTLET GRILLE LATCH PANEL HOOK GRILLE CATCH L.L.FILTER...
  • Page 34 FUNCTIONAL PARTS PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E Part number that is circled is not shown in the figure. Q'ty/set Wiring Recom- Remarks PMFY- Part No. Part Name Specification Diagram mended (Drawing No.) P·NBMU-E P·NBMU-E Symbol Q'ty 06/08 12/15...
  • Page 35 ELECTRICAL PARTS PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E Q'ty/set Wiring Recom- Remarks Part No. Part Name Specification PMFY-P06/08/12/15 Diagram mended (Drawing No.) Symbol Q'ty NBMU-E NBMU-E 3P (L1,L2,G) T7W E41 716 TERMINAL BLOCK R01 E27 246 3P (M1,M2,S)
  • Page 36 HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN cCopyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. 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. 2005. No. OC341 PDF 10 New publication, effective Jul.

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