To Determine The Required Safety Measures - Daikin VRV 5 RXYA8A7Y1B Installer And User Manual

16 | Special requirements for R32 units
NOT OK
8
a b
c
In room: master remote controller in fully functional OR alarm
only.
In supervisor room: supervisor remote controller

16.3 To determine the required safety measures

Installer and user reference guide
68
OK
c
e e
f
a Outdoor unit
b SV unit
c Indoor unit
d Remote controller NOT compatible with R32 safety system
e Remote controller compatible with R32 safety system
f Remote controller in supervisor mode
g Supervisor room
Step 1 – Determine the total amount of refrigerant in the system. Use the values
on the unit nameplate to determine the total amount of refrigerant in the system.
Contains fluorinated greenhouse gases
Total charge=Factory charge
(a)
The factory charge value can be found on the nameplate.
(b)
The R value (additional refrigerant to be charged) is calculated in
additional refrigerant
NOTICE
The total refrigerant charge amount in the system MUST always be lower than
79.8 kg.
Step 2 –Determine the smallest area out of:
▪ the room where an indoor unit is installed,
▪ each of the rooms served by a ducted indoor unit installed in a different room.
The room area can be determined by projecting the walls, doors and partitions to
the floor and calculating the enclosed area. Spaces connected by only false ceilings,
ductwork, or similar connections are not considered a single space.
Step 3 – Use the graphs or tables below to determine the required safety
measures for the indoor unit.
g
R32
= kg
1
GWP: xxx
2 = kg
2
1
kg
+
1 2
=
GWP × kg
=
tCO eq
1000
2
(a)
+additional charge
4
amount" [ 117].
Case
In particular situations it is mandatory
to install a remote controller at a
supervised location
(b)
"19.3 To determine the
RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P749918-1 – 2023.12