Table of Contents
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Air-Conditioners For Building Application
TECHNICAL & SERVICE MANUAL
Series PLFY
<Indoor unit>
PLFY-P06NLMU-E
Models
PLFY-P08NLMU-E
PLFY-P12NLMU-E
PLFY-P15NLMU-E
PLFY-P18NLMU-E
INDOOR UNIT
Ceiling Cassettes
CONTENTS
SAFETY PRECAUTIONS ·························1
1. FEATURES ···········································3
2. PART NAMES AND FUNCTIONS ········4
3. SPECIFICATION ···································6
4. OUTLINES AND DIMENSIONS············8
5. WIRING DIAGRAM ·····························10
7. TROUBLE SHOOTING ·······················12
8. DISASSEMBLY PROCEDURE ··········· 17
For use with the R410A & R22
2005
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11
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Related Manuals for Mitsubishi Electric City Multi PLFY-P06NLMU-E
Summary of Contents for Mitsubishi Electric City Multi PLFY-P06NLMU-E
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Page 1: Table Of Contents
2005 Air-Conditioners For Building Application TECHNICAL & SERVICE MANUAL Ceiling Cassettes Series PLFY <Indoor unit> PLFY-P06NLMU-E Models PLFY-P08NLMU-E PLFY-P12NLMU-E PLFY-P15NLMU-E PLFY-P18NLMU-E CONTENTS SAFETY PRECAUTIONS ·························1 1. FEATURES ···········································3 2. PART NAMES AND FUNCTIONS ········4 3. SPECIFICATION ···································6 4. OUTLINES AND DIMENSIONS············8 5. -
Page 2: Safety Precautions
- Inadequate strength may cause the unit to fall down, resulting in is shorted and operated forcibly, or parts other than those specified injuries. by Mitsubishi Electric are used, fire or explosion may result. • Use the specified cables for wiring. Make the connections se- curely so that the outside force of the cable is not applied to the •... -
Page 3: R410A Refrigerant
Precautions for devices that use Warning: • Note the following when building a heater in the air R410A refrigerant conditioning system. - Leave enough space between units for proper ventilation so that Caution: the indoor unit temperature does not exceed 40˚C when •... -
Page 4: Features
Ceiling Cassettes Series PLFY Indoor unit Cooling capacity/Heating capacity Models BTU / h 1.8 / 2.0 6000 / 6700 PLFY-P06NLMU-E 2.3 / 2.6 8000 / 9000 PLFY-P08NLMU-E 3.5 / 4.0 12000 / 13500 PLFY-P12NLMU-E 4.4 / 5.0 15000 / 17000 PLFY-P15NLMU-E 5.3 / 5.9... -
Page 5: Part Names And Functions
PART NAMES AND FUNCTIONS G Indoor (Main) Unit Autovane Disperses the airflow up and down and adjusts the angle of the airflow. Long-life filter Removes the sucked-in dust and dirt. Since the long-life filter is used as an air filter, it should be cleaned at the begin- ning of air-cooling and heating seasons. - Page 6 [Display] CENTRALLY CONTROLLED 1Hr. ON OFF CLOCK CHECK FILTER CHECK MODE TEST RUN STAND BY ERROR CODE FUNCTION NOT AVAILABLE DEFROST TEMP. ON/OFF A Current time/Timer B Centralized control C Timer OFF D Timer indicator E Operation mode: COOL, DRY, AUTO, FAN, HEAT...
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Page 7: Specification
SPECIFICATION 3-1. Specification PLFY-P-NMLU-E Item Model PLFY-P0 6NLMU-E PLFY-P08NLMU-E PLFY-P12NLMU-E PLFY-P15NLMU-E PLFY-P18NLMU-E Power sourse 208/230V, 60Hz Cooling Capacity BTU/h 6000 8000 12000 15000 18000 Heating BTU/h 6700 9000 13500 17000 20000 290 (20) Height 11-7/16 (13/16) Dimension 776 (1080) 946 (1250) Width 30-9/16 (42-17/32) 37-1/4 (49-7/32) - Page 8 3-2. Electrical parts specifications Model Symbol PLFY -P06NLMU-E PLFY -P08NLMU-E PLFY -P12NLMU-E PLFY -P15NLMU-E PLFY -P18NLMU-E Parts name Tranrsformer (Primary) 220-240V 50Hz, 220-230V 60Hz (Secondry) 23.2V 1.1A Room Resistance 0¡C[32¡F]/15k½, 10¡C[50¡F]/9.6k½, 20¡C[68¡F]/6.3k½,25¡C[77¡F]/5.4k½, temperature TH21 30¡C[86¡F]/4.3k½, 40¡C[104¡F]/3.0k½ thermistor Liquid pipe Resistance 0¡C[32¡F]/15k½, 10¡C[50¡F]/9.6k½, 20¡C[68¡F]/6.3k½,25¡C[77¡F]/5.4k½, TH22 thermistor 30¡C[86¡F]/4.3k½, 40¡C[104¡F]/3.0k½...
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Page 9: Outlines And Dimensions
OUTLINES AND DIMENSIONS PLFY-P06·08·12·15·18NLMU-E Unit :mm(in.) - Page 10 TENTATIVE PLFY-P06·08·12·15·18NLMU-E with OA duct flange Unit :mm(in.)
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Page 11: Wiring Diagram
WIRING DIAGRAM PLFY-P06·08·12·15·18NLMU-E... -
Page 12: Refrigerant System Diagram
REFRIGERANT SYSTEM DIAGRAM Gas pipe thermistor TH23 Gas pipe Liquid pipe thermistor TH22 Flare connection Heat exchanger Linear expansion valve Strainer (#100mesh) Strainer (#100mesh) Room temparature thermistor TH21 mm <in.> Capacity PLFY-P06,08,12,15NLMU-E PLFY-P18NLMU-E Item ø 12.7 (1/2) R410A Gas pipe ø... -
Page 13: Trouble Shooting
TROUBLE SHOOTING 7-1. Simple check of main components Parts name Check points Room temperature Disconnect the connector, then measure the resistance using a tester. thermistor (TH21) (Surrounding temperature 10°C to 30°C[50°F to 86°F]) Liquid pipe thermistor Normal Abnormal (TH22) Open or short 4.3kΩ~9.6kΩ... -
Page 14: Linear Expansion Valve
<Table of thermistor characteristics> < Thermistor for lower temperature > Thermistor (piping temperature detection, room temperature detection) Table of thermistor resistance Thermistor Ro = 15kΩ±3% B constant = 3480kΩ±2% =15kΩ ± 3% Thermistor R Fixed number of B=3480kΩ ± 2% Rt=15exp { 3480( 273+t 0˚C... - Page 15 <Output pulse signal and the valve operation> Output Output : 1 ¡ 2 ¡ 3 ¡ 4 ¡ 1 (Phase) Closing a valve Opening a valve : 4 ¡ 3 ¡ 2 ¡ 1 ¡ 4 ø1 The output pulse shifts in above order. ø2 ✻...
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Page 16: Function Of Dip-Switch
Effective Not effective Power ON/OFF Effective Not effective MODELS MODELS Set while the unit is off. <At delivery> PLFY-P06NLMU-E PLFY-P15NLMU-E Set for each capacity. 1 2 3 4 5 6 1 2 3 4 5 6 Capacity code PLFY-P08NLMU-E PLFY-P18NLMU-E... - Page 17 Switch Pole Operation by switch Remarks SW11 1st digit Address can be set while the address unit is stopped. setting <At delivery> SW12 SW11 Address setting should be done when network SW12 SW12 SW11 remote controller (PAR-F25MA) is being used. 2nd degit address setting...
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Page 18: Disassembly Procedure
DISASSEMBLY PROCEDURE Be careful removing heavy parts. 8-1.SERVICE PANEL and FILTER OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS 1. Removing the service panel (A) (Fig.1-1) (Fig.1-1) (1) Slide the service panel (A) in the direction of the arrow 1 while lifting it. ( depending on the local installation,the slide direction is reverse ) (2) After sliding, if it is opened in direction 2, the ser- vice panel (A) drops down as shown in Fig.1-2. -
Page 19: Control Box
Be careful removing heavy parts. 8-2.CONTROL BOX OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS 1. Remove the service panel and filter with the pro- (Fig.2-1) cedure explained in section 8-1. (A) Control box cover 2. Removing the control box cover (Fig.2-1). • Remove the fixing screws (one) of the control box (Photo.2-1) cover (A), and remove the cover. -
Page 20: Fan And Fan Motor
Be careful removing heavy parts. 8-3.Fan and fan motor PHOTOS&ILLUSTRATIONS OPERATING PROCEDURE 1. Remove the service panel and filter with the pro- (Fig.3-1) cedure explained in section 8-1. 2. Remove the two screws fixing the bell-mouth (A), (A) Bell-mouth and remove the bell-mouth A. (Fig. 3-1) 3. - Page 21 Be careful removing heavy parts. 8-4.Thermistor <fluid piping temperature detection, gas piping temperature detection> OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS (Fig.4-1) 1. Remove the service panel and filter with the pro- cedure explained in section 8-1. 2. Remove the decorative panel frame. (1) Loosen the four stepped screws fixing the panel, and suspend the panel frame.
- Page 22 Be careful removing heavy parts. 8-5.DRAIN PUMP and DRAIN SENSOR OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS 1. Remove the service panel and filter with the pro- (Photo.6-1) cedure explained in section 8-1. 2. Remove the decorative panel frame with the pro- cedure explained in section 8-4. 3.
- Page 23 Be careful removing heavy parts. 8-6.LEV and HEAT EXCHANGER OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS 1. Remove the service panel and filter with the pro- (Photo.7-1) cedure explained in section 8-1. 2. Remove the decorative panel frame with the pro- cedure explained in section 8-4. 3.
- Page 24 Be careful removing heavy parts. 8-7.Vane motor OPERATING PROCEDURE PHOTOS&ILLUSTRATIONS 1. Remove the metal cover. (Three screws) (Photo.8-1) (Photograph 8-1) 2. Remove the vane motor cover. The vane motor cover can be removed by pushing it up with fingers. 3. Remove the two motor mounting screws. (Photograph 8-2) Fixing screw Vane motor cover...
- Page 25 New publication, effective Aug. 2005 Issued in Aug. 2005 HWE05110 Specifications subject to change without notice...
- Page 26 3400 Lawrenceville Suwanee Road Suwanee, Georgia 30024 ● Toll Free: 800-433-4822 Toll Free Fax: 800-889-9904 ● www.mrslim.com Specifications are subject to change without notice.