Mitsubishi Electric City Multi PUMY-SP112YKM User Manual

Check code
1501
(U2)
Refrigerant shortage trouble
●Diagnosisofdefectives
MakesuretoturnthepowerOFFbeforeconnecting/disconnectinganyconnectors,orreplacingboards.
Diagnosis Remedy
Chart 2 of 2
*Forthevoltage,referto"8-6.HOW
TO CHECK THE COMPONENTS".
No
No
No
Yes
Yes
Yes
Yes
Yes
No
Continuedfromthepreviouspage
Is there a voltage(*) detected?
Is the voltage normal value?
Is it free from any trace of over-
heating or burning?
Is there a resistance detected?
Replacetheoutdoormulticontrollercircuit
board.
Replacethe63HS.
ReplacetheindoorLEV.
Replacetheindoorcontrollerboard.
Check the 63HS voltage.
Checkthevoltageandappearanceofthe
outdoor multi controller circuit board.
DisconnecttheindoorLEVwiringand
check the resistance.
Is there a resistance detected? Replacethethermistor.
60
61
OCH668B

Mitsubishi Electric City Multi PUMY-SP112YKM Specifications

General

Series	City Multi
Outdoor Unit Model	PUMY-SP112YKM
Cooling Capacity (kW)	11.2
Heating Capacity (kW)	12.5
Refrigerant	R410A
Operating Temperature Range (Cooling)	-5°C to 46°C
Power Source	380-415V, 50Hz
Operating Temperature Range (Heating)	-20°C to 15.5°C
Indoor Unit Compatibility	Various models in the City Multi series