9 Technical data
Installation and operation manual
26
RXYSQ4~6TAY1B
VRV IV-S system air conditioner
4P482256-1 – 2017.03
Single unit (
) | Single row of units (
)
See figure 1 on the inside of the front cover.
A,B,C,D
Obstacles (walls/baffle plates)
E
Obstacle (roof)
a,b,c,d,e
Minimum service space between the unit and obstacles A, B, C, D and E
e
B
Maximum distance between the unit and the edge of obstacle E, in the direction of obstacle B
e
D
Maximum distance between the unit and the edge of obstacle E, in the direction of obstacle D
H
U
Height of the unit
H
B
,H
D
Height of obstacles B and 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
R6T
a
b
k
c
j
c
c
c
d
e
f
g
h
i
j
Y1S
S1NPL
S1NPH
S1PH
INV M1C
Y3S
Y2E
Y1E
M1F
M2F
R7T
R5T
R2T
R3T
R4T
R1T
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)
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
Summary of Contents for RXYSQ4TAY1B
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