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Special requirements for R32 units
Installer and user reference guide
79
RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P749918-1 – 2023.12
Example
VRV system serving three rooms via one SV unit. Room 1 (20 m²) is served by one
indoor unit (32 class) connected to port
A
. Room 2 (42 m²) is served by two indoor
units (2×50 class) connected to port
B
(no extension and liquid pipe size up has
been done). Room 3 (150 m²) is served by one indoor unit (200 class) connected to
ports
C
and
D
.
Port
A
is connected to an indoor unit installed in room 1a, that is serving a different
room (room 1b) than where it is installed. The smallest room size needs to be
considered: 20 m². Use the table under
Step 2
to find the maximum capacity class
limit of the indoor unit: 140. The selected indoor unit is 32 →
OK
.
Port
B
only serves room 2: use the table under
Step 2
to find the maximum
capacity class limit of the sum of the indoor units. 42 m² is rounded down to 40 m²:
200. The sum of both indoor units is exactly 100 →
OK
.
Ports
C
and
D
are combined and must be considered as one branch pipe. They only
serve room 3: Use the table under
Step 2
to find the maximum capacity class limit
of the indoor unit: 250. The selected indoor unit is 200 →
OK
.
50
50
200
b
a
Room 1a
20 m²
Room 1b
40 m²
Room 3
150 m²
Room 2
42 m²
D
C
B
A
32
c
c
A~D
Branch pipe port A~D
a
Outdoor unit
b
SV unit
c
Indoor branch kit (refnet)
Room
Room
32/50/200
Indoor unit capacity
Summary of Contents for VRV 5 RXYA8A7Y1B
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