Daikin VRV IV+ Service Manual page 407

6.3.2 Refrigerant flow diagram: Outdoor unit
REYQ8~20+REMQ5U7Y1B
VRV IV+ Heat Recovery
ESIE18-15B – 2020.05
REMQ5 + REYQ8~12 Cooling mode
1
4 5
EVL EVH
EVSC
R7T
Y2E
R1T
R8T
Y5S
R9T
Y4S
Y3S
S1NPH
S1PH
R10T
1 Indoor unit, unit OFF, fan OFF, indoor electronic expansion valve 0 pulse
2 Indoor unit, unit ON, cooling, thermo OFF, fan ON, indoor electronic expansion
valve 0 pulse
3 Indoor unit, unit ON, cooling, thermo ON, fan ON, Indoor electronic expansion valve
superheat Control
4 Branch selector box, electronic expansion valve high pressure OFF, electronic
expansion valve low pressure OFF
2 3
6
EVL EVH EVL EVH
EVSC
R3T
Y2S
SV
Y4E
R6T
M1F Y6E R14T
M
R4T
R11T
HPS
R21T
10-12HP
R15T
Y11S
R12T
6 Technical data
|
EVSC
a
b
c
Y1E
Y3E
R5T
Y5E
Service manual
407