Haier H-MRV Series Service Manual page 55

MP3、MP2 Electronic Expansion Valve Box figure:
Connect with indoor liquid pipe
1 2
Connect with outdoor liquid pipe
MP3、MP2 installation dimension:
MP3（MP2）installation procedure：
1、Installation of MP3（MP2）can be used for CEILING CONCEALED MODEL
A、Piping connection
a、When connecting with indoor unit，refrigerant pipe and the connection wire must be
corresponding with the code（A、B、C...） on the device.
NOTE: When using two or more than two MP3 devices (need two or more than two
MP3 devices on connecting more than three indoor units), MUST mark definitely
Room code of connected indoor unit on the MP3 label, so as to air conditioner
maintain conveniently.
b 、 When connecting indoor unit, firstly please weld MP3 with the corresponding
contribution pipe in the accessories table, then connect MP3 with corresponding indoor
connection pipe.
c、MP3 can only be connected with liquid pipe of the unit, the gas pipe connection is the
same as the old ceiling concealed model.
3
Fetch out the power line and the connecting line.
Pay attention to fix firmly with wiring clamp.
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