Branch Selector Unit - Daikin VRV EMERION REYQ-AATJA Service Manual

Refrigerant Circuit (Piping Diagrams)
1.2

Branch Selector Unit

No. Name
Electronic expansion valve (EVSC)
(1)
Electronic expansion valve (EVH)
(2)
(3) Electronic expansion valve (EVL)
Note(s)
Factory setting of each electronic expansion valve opening
EVSC: 0 pulse
EVH, EVL: 3,000 pulse
1.2.1 Single Branch Selector Unit
BSQ36/60/96TVJ
Liquid pipe
connection port
Gas pipe
connection port
67
Electric
Symbol
Y1E
Y2E
Y3E
Electronic
Double pipe heat
Expansion Valve
exchanger
(EVSC)
Electronic
Expansion Valve
(EVH)
Filter
Electronic
Expansion Valve
(EVL)
In simultaneous cooling and heating, it is used to subcooling liquid
refrigerants when an indoor unit downstream of this Branch Selector unit
is in heating. (Max : 480 pulse)
Opens while in heating or all indoor units are in cooling. (Max : 6,000
pulse)
Opens while in cooling. (Max : 6,000 pulse)
(1)
Filter
Filter
(2)
Filter
(3)
SiUS372201EB
Function
Liquid pipe
connection port
HP/LP gas pipe
connection port
Suction gas pipe
connection port
C: 4D085545B
Part 2 Refrigerant Circuit