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Mitsubishi Electric PVFY-P12E00A Technical & Service Manual

Vertical concealed indoor unit

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MANUFACTURED FOR:
MITSUBISHI ELECTRIC & ELECTRONICS USA
TECHNICAL & SERVICE MANUAL
Series PVFY
<Indoor unit>
PVFY-P12E00A, PVFY-P18E00A
Models
PVFY-P24E00A, PVFY-P30E00A
PVFY-P36E00A, PVFY-P48E00A
PVFY-P54E00A
Vertical Concealed Indoor Unit
CONTENTS
SAFETY PRECAUTIONS ·························
1. FEATURES············································
3. SPECIFICATION ···································
4. OUTLINES AND DIMENSIONS············
5. WIRING DIAGRAM ·····························
7. TROUBLESHOOTING ························
For use with R410A only
2009
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Summary of Contents for Mitsubishi Electric PVFY-P12E00A

  • Page 1: Table Of Contents

    2009 MANUFACTURED FOR: MITSUBISHI ELECTRIC & ELECTRONICS USA TECHNICAL & SERVICE MANUAL Vertical Concealed Indoor Unit Series PVFY <Indoor unit> PVFY-P12E00A, PVFY-P18E00A Models PVFY-P24E00A, PVFY-P30E00A PVFY-P36E00A, PVFY-P48E00A PVFY-P54E00A CONTENTS SAFETY PRECAUTIONS ························· 1. FEATURES············································ 2. PART NAMES AND FUNCTIONS ········...
  • Page 2: Safety Precautions

    Install the air unit at a place that can withstand its weight. is shorted and operated forcibly, or parts other than those specified - Inadequate strength may cause the unit to fall down, resulting in by Mitsubishi Electric are used, fire or explosion may result. injuries. •...
  • Page 3 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

    FEATURES Vertical Concealed Indoor Unit Series PVFY Indoor unit Cooling capacity/Heating capacity Models Btu / h PVFY-P12E00A 3.5 / 4.0 12,000 / 13,500 PVFY-P18E00A 5.3 / 5.9 18,000 / 20,000 PVFY-P24E00A 7.0 / 7.9 24,000 / 27,000 PVFY-P30E00A 8.8 / 10.0...
  • Page 5: Part Names And Functions

    PART NAMES AND FUNCTIONS Indoor (Main) Unit Horizontal Left Vertical Remote controller [PAR-21MAA] Once the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button. G Operation buttons TEMP. ON/OFF MENU ON/OFF FILTER BACK MONITOR/SET CHECK TEST...
  • Page 6 [Display] 1Hr. CENTRALLY CONTROLLED ON OFF CLOCK CHECK FILTER CHECK MODE TEST RUN STAND BY ERROR CODE FUNCTION NOT AVAILABLE DEFROST TEMP. ON/OFF Current time/Timer Centralized control Timer OFF Timer indicator Operation mode: COOL, DRY, AUTO, FAN, HEAT “Locked” indicator Set temperature Power ON Louver...
  • Page 7: Specification

    SPECIFICATIONS 3-1. PVFY-P-E00A Specifications PVFY Specifications PVFY- PVFY- PVFY- PVFY- PVFY- PVFY- PVFY- Model Name P12E00A P18E00A P24E00A P30E00A P36E00A P48E00A P54E00A Power Source 208/230V, 1-phase, 60Hz Cooling Capacity Btu/h *1 12,000 18,000 24,000 30,000 36,000 48,000 54,000 Heating Capacity Btu/h *1 13,500 20,000...
  • Page 8 3-2. Electrical Parts Specifications PVFY- PVFY- PVFY- PVFY- PVFY- PVFY- PVFY- Model P12E00A P18E00A P24E00A P30E00A P36E00A P54E00A P48E00A Parts Symbol name (Primary) 240V 60Hz (Secondary) (23.5V 0.9A) Transformer (Primary) 208/230V 60Hz (Secondary) (27V) Transformer Room Resistance 0°C[32°F]/15k,10°C[50°F]/9.6k,20°C[68°F]/6.3k,25°C[77°F]/5.4k, temperature TH21 30°C[86°F]/4.3k,40°C[104°F]/3.0k thermistor Liquid pipe...
  • Page 9: Outlines And Dimensions

    OUTLINES AND DIMENSIONS PVFY-P12·18·24E00A...
  • Page 10 PVFY-P30·36E00A...
  • Page 11 PVFY-P48·54E00A...
  • Page 12: Wiring Diagram

    WIRING DIAGRAM PVFY-P12,18, P24, P30, P36, P48, P54E00A ·...
  • Page 13: 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 PVFY-P12,18E00A Item ø Gas pipe R410A 12.7 (1/2) ø Liquid pipe R410A 6.35 (1/4)
  • Page 14: Troubleshooting

    TROUBLESHOOTING 7-1. How to check the parts Parts name Check points Room temparature Disconnect the connector, then measure the resistance using a tester. thermistor (TH21) (Sorrounding temperature 10°C~30°C[50°F~86°F]) Liquid pipe thermistor (TH22) Normal Abnormal Gas pipe thermistor (Refer to the thermistor) (TH23) 4.3k ~9.6k Open or short...
  • Page 15 <Thermistor Characteristic graph> < Thermistor for lower temperature > Room temparature thermistor(TH21) Thermistor for Liquid pipe thermistor(TH22) lower temperature Gas pipe temparature thermistor(TH23) Thermistor R =15k Fixed number of B=3480k Rt=15exp { 3480( 273+t 0°C 32°F 10°C 50°F 9.6k 20°C 68°F 6.3k 25°C...
  • Page 16 <Output pulse signal and the valve operation> Output Output (Phase) Closing a valve : 1 ¡ 2 ¡ 3 ¡ 4 ¡ 1 Opening a valve : 4 ¡ 3 ¡ 2 ¡ 1 ¡ 4 ø1 The output pulse shifts in above order. ø2 1.
  • Page 17 7-2. Fan Motor Troubleshooting All Models If the motor rocks back and forth on start up, this is normal―do not replace the motor. The motor may surge if operating outside the design static pressure range. Verify that the system design static matches the selected motor static pressure settings.
  • Page 18 7-3. Dip Switch Settings Operation by switch Switch Pole Remarks Function Thermistor<Intake temperature Indoor unit Built-in remote controller Address board detection>position Filter clogging detection Provided Not provided <At delivery> Filter life 2,500hr 100hr 1 2 3 4 5 6 7 8 9 10 Air intake Effective Not effective...
  • Page 19 Switch Pole Operation by switch Remarks Address board SW11 1st digit SW12 SW11 Address can be set while the Address setting should be done when network address unit is stopped. remote controller (PAR-F25MA) is being used. setting <At delivery> SW12 SW12 SW11 2nd digit...
  • Page 20 MANUFACTURED FOR: MITSUBISHI ELECTRIC & ELECTRONICS USA, 2009...