Mitsubishi Electric CITY MULTI PMFY-P06NBMU-E Technical & Service Manual
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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
PMFY-P06NBMU-E
[Models]
PMFY-P08NBMU-E
PMFY-P12NBMU-E
PMFY-P15NBMU-E
INDOOR UNIT
R410A / R22
CONTENTS
1. FEATURES ···········································2
2. PART NAMES AND FUNCTIONS ········3
3. SPECIFICATION ···································5
4. OUTLINES AND DIMENSIONS············9
5. WIRING DIAGRAM·····························10
7. MICROPROCESSOR CONTROL·······12
8. TROUBLESHOOTING ························19
9. DISASSEMBLY PROCEDURE···········26
10. PARTS LIST········································29
C
US
June 2005
No. OC341
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Table of Contents
Troubleshooting
Related Manuals for Mitsubishi Electric CITY MULTI PMFY-P06NBMU-E
Summary of Contents for Mitsubishi Electric CITY MULTI PMFY-P06NBMU-E
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Page 1: Table Of Contents
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS June 2005 No. OC341 TECHNICAL & SERVICE MANUAL R410A / R22 PMFY-P06NBMU-E [Models] PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E CONTENTS 1. FEATURES ···········································2 2. PART NAMES AND FUNCTIONS ········3 3. SPECIFICATION ···································5 4. OUTLINES AND DIMENSIONS············9 5. WIRING DIAGRAM·····························10 6. -
Page 2: Features
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 PMFY-P12NBMU-E 12,000 / 13,500 Btu/h PMFY-P15NBMU-E 15,000 / 17,000 Btu/h 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. -
Page 3: Part Names And Functions
PART NAMES AND FUNCTIONS Indoor Unit Auto Air Swing Vane Disperses airflow up and Guide vane down and adjusts the angle Air flow can be changed horizontally of airflow direction. by moving the Guide vane to the left or right. Horizontal Air Outlet Filters Air intake... - Page 4 Display “Sensor” indication Displayed when the remote controller sensor is used. Day-of-Week For purposes of this explanation, Shows the current day of the week. all parts of the display are shown as lit. During actual operation, only Time/Timer Display the relevant items will be lit. “Locked”...
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Page 5: Specification
SPECIFICATION 3-1. Specification Item PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E · Power Single phase 208-230V 60Hz 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 0.044 0.054 Cooling 0.20 0.20 0.21... - Page 6 3-2. Electrical parts specifications Model 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" Gas pipe thermistor TH23 Fuse...
- Page 7 3-3. Air capacity taken from outside PMFY-P·NBMU-E series are capable of taking air from outside. When taking air from outside, the duct fan must be used. The air capacity should be 20% or less of the air flow SPEC(Hi). 9-13/16 11-3/8 4-{1/8 Fresh air intake hole...
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Page 8: Noise Criterion Curves
3-4. NOISE CRITERION CURVES PMFY-P06NBMU-E PMFY-P08NBMU-E SPL(dB) LINE SPL(dB) LINE NOTCH NOTCH High High PMFY-P12NBMU-E Medium Medium Medium Medium 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 APPROXIMATE THRESHOLD OF HEARING NOISE FOR CONTINUOUS NOISE 1000... -
Page 9: Outlines And Dimensions
OUTLINES AND DIMENSIONS PMFY-P06NBMU-E Unit : in. (mm) PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E... -
Page 10: Wiring Diagram
WIRING DIAGRAM PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E... -
Page 11: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM 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) Strainer pipe (#100mesh) Thermistor TH21 <Room temperature detection>... -
Page 12: Microprocessor Control
MICROPROCESSOR CONTROL INDOOR UNIT CONTROL 7-1. 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 13 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.
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Page 14: Dry Operation
7-2. 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 15: Fan Operation
7-3. 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 16: Heat Operation
7-4. 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 17 From the preceding page. Control modes Control details Remarks 2-3. Thermostat 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.
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Page 18: When Unit Is Stopped Control Mode
7-5. 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 19: Troubleshooting
TROUBLE SHOOTING 8-1. How to check the parts 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 using a tester. <Room temperature (Surrounding temperature 50°F~86°F) detection> Thermistor (TH22) Normal Abnormal Refer to the next page for the details. <Liquid pipe temperature 4.3k"~9.6k"... -
Page 20: 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 21 <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. 1. When linear expansion valve operation stops, all output phase become OFF. 2. At phase interruption or when phase does not shift in order, motor does not rotate smoothly and motor will locks and vibrates.
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Page 22: Troubleshooting
8-2. 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 23: Function Of Dip Switch
8-3. FUNCTION OF DIP SWITCH Operation by switch Effective Switch Pole Function Remarks timing Thermistor <Room temperature Built-in remote controller Indoor unit Address board detection> position Filter clogging detection Provided Not provided <At delivery> Filter cleaning sign 2,500hr 100hr Fresh air intake Effective Not effective 1 2 3 4 5 6 7 8 9 10... - Page 24 Effective Switch Pole Operation by switch Remarks timing SW11 Address board 1st digit Address can be set while the address SW12 SW11 unit is stopped. setting Address setting should be done when M-NET <At delivery> remote controller is being used. SW12 SW12 SW11...
- Page 25 8-4. TEST POINT DIAGRAM PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E CN32 Connector (Remote switch) Capacity setting Function setting Model selection CN27 Connector (Damper) CN25 Drain pump output Connecter (DP) (Humidifier) 1 1 to 3 3 Between 220-240V AC Connect to the terminal block (TB2) (Power supply for indoor controller CN6V...
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Page 26: Disassembly Procedure
DISASSEMBLY PROCEDURE PMFY-P06NBMU-E PMFY-P08NBMU-E Be careful when removing heavy parts. PMFY-P12NBMU-E PMFY-P15NBMU-E 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) PUSH (2) Put your fingers on both ends of the air intake grille and let it down after the grille clicks. - Page 27 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 28 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.
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Page 29: Parts List
TW7 E01 691 R01 E00 054 GRILLE CATCH R01 E00 648 RECEIVER COVER R01 E00 044 MAGNET R01 E00 096 SCREW CAP PAR-21MAA — REMOTE CONTROLLER This REMOTE CONTROLLER is made by AIR-CONDITIONING & REFRIGERATION SYSTEMS WORKS,. MITSUBISHI ELECTRIC CORPORATION. - Page 30 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 Price Wiring Recom- Remarks Part No. Part Name Specification Diagram mended PMFY-P · NBMU-E (Drawing No.) Unit Amount Symbol Q'ty 06/ 08 12/ 15 (DT00A478G81) —...
- Page 31 ELECTRICAL PARTS PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E Q'ty/set Price Wiring Recom- Remarks PMFY-P06/ P08 Diagram mended Part No. Part Name Specification /P12/ P15 (Drawing No.) Unit Amount Symbol Q'ty NBMU-E — (RG02B337G16) CONTROL BOX T7W E11 716 TERMINAL BLOCK 3P (L1,L2,G) T7W E17 716 TERMINAL BLOCK 3P (M1,M2,S)
- Page 32 HEAD OFFICE : MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPAN cCopyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Jun. 2005. No. OC341 PDF 10 New publication, effective Jun. 2005 Specifications subject to change without notice Made in Japan...