Daikin VRV - WII, Service Manual

Page: 59 / 312

Refrigerant Flow for Each Operation Mode SiUS30-604
46 Refrigerant Circuit
B. Heating and simultaneous cooling/heating operation (When the outdoor water cooled heat exchanger is used
as condenser.)
Suction gas pipe Discharge gas pipe Liquid pipe
High temper
ature
, high pressure gas
High temper
ature
, high pressure liquid
Lo
w temper
ature
, lo
w pressure liquid or gas
ON-OFF control by receiver pressurerising control
E3 control
Capillar
y
tube
Three w
ay
valv
e
Capillar
y tube
Solenoid v
alv
e
Chec
k v
alv
e
Filter
Capillar
y
tube
Three w
ay
valv
e
Capillar
y tube
Solenoid v
alv
e
Chec
k v
alv
e
Filter
Capillar
y
tube
Three w
ay
valv
e
Capillar
y tube
Solenoid v
alv
e
Chec
k v
alv
e
Filter
Indoor unit (Ther
mostat
“ON”)
F
an ON
T
o
other indoor units
“ON”
Cooling
Cooling
Heating
Heat e
xchanger
Fa
n
Electronic e
xpansion v
alv
e
Filter
Filter
Indoor unit (Ther
mostat
“ON”)
F
an ON
“ON”
Heat e
xchanger
Fa
n
Electronic e
xpansion v
alv
e
Filter
Filter
Indoor unit (Ther
mostat
“ON”)
F
an ON
“ON”
Heat e
xchanger
Fa
n
Electronic e
xpansion v
alv
e
Filter
Filter
Indoor unit oper
ation
Bs unit Bs unit Bs unit
Outside unit
Indoor unit Indoor unit Indoor unit