To Determine The Charge Limit - Daikin VRV 5-S RXYSA4A7V1B Installation And Operation Manual

NOT OK
3
b
a
4
B
b
a
B
b
a
B
5
b
a
6
b b
a
7
b b
a
d
a Outdoor unit
b Indoor unit
c Remote controller NOT compatible with R32 safety
system
12.3

To determine the charge limit

Step 1 – In order to derive the total refrigerant charge limit in the
system, determine the area:
▪ of the rooms where an indoor unit is installed.
▪ AND of the rooms served by a ducted indoor unit installed in a
different room.
RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600329-1E – 2023.02
OK
b
a
d
b
a
A
d
B
b
a
d
B
d
B
b
b
a
B
b
a
d
d
b
a
d
f
d
e
12 Special requirements for R32 units
Case
In case of one R32 safety system compatible
remote controller, it should be the master and in
the same room of the indoor unit.
d
In case a ducted indoor unit is serving a different
room than where it is installed, both supply and
return air MUST be directly ducted to that room.
The room area and remote controller rules
MUST be followed only in the served room when
d
B
a given room is served by only one ducted
indoor unit installed in a different room.
In all other situations both the room where the
B
d
ducted unit is installed and the served room(s)
need to follow the room area and remote
controller rules.
A: No room area restrictions apply. No remote
controller required.
d
B
B: Room area restrictions apply, and installation
of remote controller required.
d
d
B
In case of two R32 safety system compatible
remote controllers, at least one remote controller
should be in the room of the indoor.
d
d
Group control is allowed up to a maximum of
5 indoor units connected to different ports or
connected to the same port. At least one R32
b b
safety system compatible remote controller
should be in the room of the indoors.
d
In particular situations it is mandatory to install a
remote controller at a supervised location.
In room: master remote controller in fully
functional OR alarm only.
In supervisor room: supervisor remote controller.
d Remote controller compatible with R32 safety system
e Remote controller in supervisor mode
f Supervisor room
g Ducts (supply and return air)
The room area can be determined by projecting the walls, doors and
partitions to the floor and calculate the enclosed area. The area of
the smallest room being served by the system is used in the next
step to determine the maximum allowable total charge of the system.
Spaces connected by only false ceilings, ductwork, or similar
connections shall not be considered a single space.
Installation and operation manual
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