Daikin REYQ-TA Series, Service Manual

Page: 32 / 324

Refrigerant Circuit SiUS371614E
19 Refrigerant Circuit
1.4 Branch Selector Unit
1.4.1 Single Branch Selector Unit
BSQ36-96TVJ
Note: Factory setting of all EV opening: 60 pulse
No. Name
Electric
symbol
Function
1 Electronic expansion valve (EVH) Y2E
Opens while in heating operation or all indoor units are in cooling.
(Max : 760 pulse)
2 Electronic expansion valve (EVL) Y3E Opens while in cooling. (Max : 760 pulse)
3 Electronic expansion valve (EVSC) Y1E
In simultaneous cooling and heating operation, it is used to subcooling
liquid refrigerants when an indoor unit downstream of this Branch Selector
unit is in heating. (Max : 480 pulse)
Filter
Filter Filter
Filter
Liquid pipe
connection port
Gas pipe
connection port
Double pipe heat
exchanger
Electronic
Expansion Valve
(EVSC)
HP/LP gas pipe
connection port
Suction gas pipe
connection port
Electronic
Expansion Valve
(EVH)
Electronic
Expansion Valve
(EVL)
Liquid pipe
connection port
(3)
(1)
(2)
4D085545A