Piping Diagram: Outdoor Unit - Daikin RXYSQ8TMY1B Installation And Operation Manual

a,b,c,d,e Minimum service space between the unit and obstacles A, B, C, D and E
e Maximum distance between the unit and the edge of obstacle E, in the direction of obstacle B
B
e Maximum distance between the unit and the edge of obstacle E, in the direction of obstacle D
D
H Height of the unit
U
H ,H Height of obstacles B and D
B D
1 Seal the bottom of the installation frame to prevent discharged air from flowing back to the suction side through the bottom of the unit.
2 Maximum two units can be installed.
Not allowed
Multiple rows of units (
See figure 2 on the inside of the front cover.
Stacked units (max. 2 levels) (
See figure 3 on the inside of the front cover.
A1=>A2 (A1) If there is danger of drainage dripping and freezing between the upper and lower units...
(A2) Then install a roof between the upper and lower units. Install the upper unit high enough above the lower unit to prevent ice buildup at the
upper unit's bottom plate.
B1=>B2 (B1) If there is no danger of drainage dripping and freezing between the upper and lower units...
(B2) Then it is not required to install a roof, but seal the gap between the upper and lower units to prevent discharged air from flowing back to the
suction side through the bottom of the unit.
9.2

Piping diagram: Outdoor unit

RXYSQ8
c
d
R6T
b
a
k c j
a Stop valve (gas)
b Stop valve (liquid)
c Filter (4×)
d Accumulator
e Subcool tube heat exchanger
f Pressure regulating valve
g Heat exchanger
h Service port (high pressure)
i Oil separator
j Capillary tube (2×)
k Service port (refrigerant charge)
M1C Compressor
M1F-M2F Fan motor
R1T Thermistor (air)
R2T Thermistor (suction 1)
RXYSQ8~12TMY1B
VRV IV-S system air conditioner
4P400263-1F – 2017.02
)
)
e
R5T
R7T
Y1S
S1NPL
Y1E
Y2E
f
Y3S
i
S1NPH
c
S1PH
R3T
INV M1C
R2T
j
R3T Thermistor (discharge)
R4T Thermistor (heat exchanger de-icer)
R5T Thermistor (subcool heat exchanger)
R6T Thermistor (liquid pipe)
R7T Thermistor (suction 2)
S1NPH High pressure sensor
S1NPL Low pressure sensor
S1PH High pressure switch
Y1E Electronic expansion valve (main)
Y2E Electronic expansion valve (subcool heat exchanger)
Y1S Solenoid valve
Y3S Solenoid valve (4‑way valve)
Heating
Cooling
9 Technical data
c
R4T
g
h
Installation and operation manual
R1T
M1F
M2F
31