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SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
Indoor unit
[Model names]
PKFY-P63VKM-E
PKFY-P100VKM-E
INDOOR UNIT
[Service Ref.]
PKFY-P63VKM-E.TH
PKFY-P100VKM-E.TH
R410A
R407C
CONTENTS
1. SAFETY PRECAUTION .......................... 2
2. PART NAMES AND FUNCTIONS .......... 5
3. SPECIFICATION ..................................... 8
4. OUTLINES AND DIMENSIONS ............ 10
5. WIRING DIAGRAM ............................... 11
6. REFRIGERANT SYSTEM DIAGRAM ........ 12
7. TROUBLESHOOTING .......................... 12
8. DISASSEMBLY PROCEDURE ............. 20
PARTS CATALOG (OCB447)
November 2008
No. OCH447
R22
Note:
• This manual describes only
service data of the indoor
units.
• RoHS compliant products
have <G> mark on the spec
name plate.
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Summary of Contents for Mitsubishi Electric PKFY-P63VKM-E.TH
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Page 1: Table Of Contents
TECHNICAL & SERVICE MANUAL R410A R407C Indoor unit Note: [Model names] [Service Ref.] • This manual describes only PKFY-P63VKM-E.TH service data of the indoor PKFY-P63VKM-E units. • RoHS compliant products PKFY-P100VKM-E.TH have <G> mark on the spec PKFY-P100VKM-E name plate. -
Page 2: Safety Precaution
SAFETY PRECAUTION CAUTIONS RELATED TO NEW REFRIGERANT Cautions for units utilizing refrigerant R407C Do not use the existing refrigerant piping. Use liquid refrigerant to charge the system. The old refrigerant and lubricant in the existing piping If gas refrigerant is used to seal the system, the composition contain a large amount of chlorine which may cause the of the refrigerant in the cylinder will change and performance lubricant deterioration of the new unit. - Page 3 [2] Refrigerant recharging (1) Refrigerant recharging process 1Direct charging from the cylinder. ·R407C cylinder available on the market has a syphon pipe. ·Leave the syphon pipe cylinder standing and recharge it. (By liquid refrigerant) Unit Gravimeter (2) Recharge in refrigerant leakage case ·After recovering the all refrigerant in the unit, proceed to working.
- Page 4 Cautions for units utilizing refrigerant R410A Use a vacuum pump with a reverse flow check Do not use the existing refrigerant piping. valve. The old refrigerant and lubricant in the existing piping Vacuum pump oil may flow back into refrigerant cycle and contains a large amount of chlorine which may cause the that can cause deterioration of refrigerant oil etc.
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Page 5: Part Names And Functions
Unit Gravimeter [3] Service tools Use the below service tools as exclusive tools for R410A refrigerant. Tool name Specifications Gauge manifold ·Only for R410A ·Use the existing fitting specifications . (UNF1/2) ·Use high-tension side pressure of 5.3MPa·G or over. Charge hose ·Only for R410A ·Use pressure performance of 5.09MPa·G or over. -
Page 6: Wired Remote Controller
Wired remote controller “Sensor” indication Display Section 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. -
Page 7: Wireless Remote Controller
Wireless remote controller CHECK TEST RUN display CHECK and TEST RUN display indicate that the unit is being checked or test-run. MODEL SELECT display Blinks when model is selected. display Lights up while the signal is transmitted to the indoor unit when the button is pressed. display SET TEMP. -
Page 8: Specification
SPECIFICATION 3-1. Specifi cations Model PKFY-P63VKM-E PKFY-P100VKM-E Power source 1-phase 220-240V 50Hz, 1-phase 220V 60Hz 11.2 Cooling capacity (Nominal) kcal/h 6,100 9,600 24,200 38,200 Btu/h 6,300 10,000 kcal/h Power input 0.05 0.08 Current input 0.37 0.58 12.5 Heating capacity (Nominal) kcal/h 6,900 10,800... -
Page 9: Sound Levels
3-2. Electrical parts specifi cations Service Ref. Symbol PKFY-P63VKM-E.TH PKFY-P100VKM-E.TH Parts name Room temperature TH21 Resistance 0 /15k , 10 /9.6k , 20 /6.3k , 25 /5.4k , 30 /4.3k , 40 /3.0k thermistor Liquid pipe thermistor TH22 Resistance 0 /15k , 10 /9.6k , 20 /6.3k , 25 /5.4k , 30 /4.3k , 40 /3.0k... -
Page 10: Outlines And Dimensions
OUTLINES AND DIMENSIONS PKFY-P63VKM-E.TH PKYF-P100VKM-E.TH Unit : mm Top side 423.7 431.7 Right side Left side Front side Mount board Knockout hole for left piping (855) Operation lamp 1170 Knockout hole for DEFROST/STAND BY lamp right piping Receiver Front side (Grille open) -
Page 11: Wiring Diagram
WIRING DIAGRAM PKFY-P63VKM-E.TH PKYF-P100VKM-E.TH SYMBOL NAME SYMBOL NAME INDOOR CONTROLLER BOARD TH21 THERMISTOR ROOM TEMP. DETECTION (0°C/15kΩ, 25°C/5.4kΩ) CN32 CONNECTOR REMOTE SWITCH CN51 CENTRALLY CONTROL TH22 PIPE TEMP. DETECTION/LIQUID (0°C/15kΩ, 25°C/5.4kΩ) CN52 REMOTE INDICATION BUZZER TH23 PIPE TEMP. DETECTION/GAS1 (0°C/15kΩ, 25°C/5.4kΩ) SURGE ABSORBER FUSE FUSE (T3.15AL 250V) -
Page 12: Refrigerant System Diagram
15.88 (5/8) Liquid pipe 9.52 (3/8) 9.52 (3/8) TROUBLESHOOTING 7-1. HOW TO CHECK THE PARTS PKFY-P63VKM-E.TH PKFY-P100VKM-E.TH Parts name Check points Room temperature Disconnect the connector then measure the resistance using a tester. thermistor (TH21) (At the ambient temperature 10 ~30 ) - Page 13 7-1-1. Thermistor <Thermistor Characteristic graph> < Thermistor for lower temperature > Room temperature thermistor (TH21) Thermistor for Liquid pipe temperature thermistor (TH22) lower temperature Gas pipe temperature thermistor (TH23) (TH24) Thermistor R =15k" ± 3% Fixed number of B=3480 ± 2% Rt=15exp { 3480( 273+t 15k"...
- Page 14 <Output pulse signal and the valve operation> Output Output Closing a valve : 1 → 2 → 3 → 4 → 1 (Phase) Opening a valve : 4 → 3 → 2 → 1 → 4 The output pulse shifts in above order. •...
- Page 15 7-1-3. DC Fan motor (fan motor/indoor controller circuit board) Check method of DC fan motor (fan motor/indoor controller circuit board) Notes · High voltage is applied to the connecter (CNMF) for the fan motor. Pay attention to the service. · Do not pull out the connector (CNMF) for the motor with the power supply on. board and fan motor.) (It causes trouble of the indoor controller circuit Self check...
- Page 16 7-2. Function of Dip switch PKFY-P63VKM-E.TH PKFY-P100VKM-E.TH Operation by switch Effective Switch Pole Function Remarks timing Thermistor<Room temperature> Indoor unit Built-in remote controller Address board position Filter clogging detection Provide Not provide <Initial setting> Filter cleaning sign 2,500 hr 100 hr...
- Page 17 Effective Switch Operation by switch Remarks timing • To operate each indoor unit by each remote controller when installed 2 indoor <Initial setting> units or more are near, Pair No. setting is necessary. Pattern A Pair No. setting is available with the 4 patterns (Setting patterns A to D). . J41, J42 Make setting for J41, J42 of indoor controller board and the Pair No.
- Page 18 7-3. TEST POINT DIAGRAM 7-3-1. Indoor controller board PKFY-P63VKM-E.TH PKFY-P100VKM-E.TH CNMF Connect to the fan motor (MF) 1-3 : DC310~340V 4-3 : DC15V FUSE 5-3 : DC0~6V 3.15A 250V 6-3 : DC0 or DC15V Drain pump output (DP) 1-3 : 220-240VAC...
- Page 19 7-3-2. Wireless remote controller board PKFY-P63VKM-E.TH PKFY-P100VKM-E.TH LD101 Connect to the indoor controller board (I.B) 7-3-3. Address board PKFY-P63VKM-E.TH PKFY-P100VKM-E.TH Function setting SW12 SW11 SW14 Address setting Address setting Branch No. 10ths DIGIT 1s DIGIT...
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Page 20: Disassembly Procedure
DISASSEMBLY PROCEDURE PKFY-P63VKM-E.TH PKFY-P100VKM-E.TH Be careful when removing heavy parts. OPERATION PROCEDURE PHOTOS & ILLUSTRATIONS 1. REMOVING THE PANEL Photo 1 Front grille Screws (1) Press and unlock the knobs on both sides of the front grille and lift the front grille until it is level. Pull the hinges forward to remove the front grille. -
Page 21: Operation Procedure
OPERATION PROCEDURE PHOTOS 3. REMOVING THE ELECTRICAL BOX Photo 4 Connect for ground Fixture (1) Remove the panel and the corner box. (Refer to 1.) (2) Remove the screw and hook of address board case. (3) Remove the front and side electrical box covers (each 1 screw). - Page 22 OPERATION PROCEDURE PHOTOS 6. REMOVING THE INDOOR FAN MOTOR AND THE Photo 7 LINE FLOW FAN Screw of the motor band (1) Remove the panel and the corner box. (Refer to 1.) Lead wire of pipe ther- mistor (2) Remove the electrical box (Refer to 2.) and the nozzle assembly (Refer to 3.).
- Page 23 OPERATION PROCEDURE PHOTOS 8. REMOVING THE HEAT EXCHANGER AND LEV Photo 11 (1) Remove the panel and the corner box. (Refer to 1.) Heat exchanger (2) Remove the electrical box (Refer to 3.) and the nozzle assembly (Refer to 4.). (3) Remove the water cut.
- Page 24 HEAD OFFICE : TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU TOKYO 100-8310, JAPAN Copyright 2008 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Nov. 2008 No. OCH447 PDF 6 New publication, effective Nov. 2008 Made in Japan Specifications subject to change without notice...
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