Overview: Flowchart - Daikin VRV 5 RXYA8A7Y1B Installer And User Manual

16 | Special requirements for R32 units

16.4.5 Overview: flowchart

§16.4.1
No safety measure
Make field settings in the indoor unit
accordingly.
Remote controller with R32 safety system
compatibility shall be installed for each indoor unit.
See the requirements in above text.
Is indoor unit installed in occupancy:
1. with sleeping facilities?
2. where an uncontrolled number of people are
present?
3. accessible for persons not familiar with the
necessary safety precautions?
4. Where people are restricted in their
movement.
YES
Alarm system must additionally
warn at a supervised location
with 24-hour monitoring.
Note: The flowchart is an overview. Always refer to the full text mentioned in this manual for clear understanding and detailed
explanation.
Installer and user reference guide
80
§16.4.2
Alarm
Determine total room area (= total area of the
space with natural ventilation and the space in
which the indoor unit is installed).
See Step 1 in above chapter
Derive total refrigerant charge limit.
See Step 2 in above chapter
Total charge amount
Is one (or more) of the
four conditions met?
The partition between two rooms on the same
NO
floor MUST meet one of the two requirements
for natural ventilation.
See Step 4 in above chapter
§16.4.3
Natural ventilation
A + A [m²]
1 min
Total charge limit [kg]
NO
<
Total charge limit
YES
Not allowed!
Determine other safety
measure.
Start installation
§16.4.4
Shut-off valves
Select the SV unit.
Check if smallest room size meets
requirements.
Determine smallest room area served
by same branch pipe port. See step 1 in
above text.
See Step 1 in above chapter
A [m²]
min
Derive maximum indoor capacity to
connect to branch pipe port.
See Step 2 in above chapter
Change installation for this port:
1. Increase area of smallest room
OR
2. Reduce connected indoor capacity
below limit
OR
3. Split indoor capacity over 2 separate
SV unit ports
OR
4. Fine tune system with VRV Xpress.
NO
Total indoor capacity index
<
Capacity index limit
YES
RYMA5+RXYA8~20A7Y1B
VRV 5 heat pump
4P749918-1 – 2023.12