Using The Leak Detection Function; About Automatic Leak Detection - Daikin VRV IV+ RYYQ8U7Y1B Series Installer And User Manual

19 | Configuration

19.4 Using the leak detection function

19.4.1 About automatic leak detection

Installer and user reference guide
142
Quick
Powerful
Mild
Room temperature evolution:
A
F E
B
A Indoor unit set temperature
B Operation start
C Operating time
D Mild
E Quick
F Powerful
The (automatic) leak detection function is not by default activated. The (automatic)
leak detection function can only start working when both below conditions are
fulfilled:
▪ The additional refrigerant charge was inputted in the system's logic (see [2‑14]).
▪ The system test run was executed (see
the detailed refrigerant situation check.
The leak detection operation can be automated. By changing parameter [2‑85] to
chosen value, the interval time or the time till the next automatic leak detection
operation can be chosen. The parameter [2‑86] defines whether the leak detection
operation is executed one time (within [2‑85] days) or intermittent, respecting an
interval of [2‑85] days.
Availability of the leak detection function feature requires input of the additional
refrigerant charge amount immediately after finishing the charging. The input must
be executed before performing the test operation.
NOTICE
If a wrong value is input for the additional charged refrigerant weight, the accuracy
of the leak detection function will decrease.
D
"20 Commissioning" [
C
4
145]), including
RYYQ+RYMQ+RXYQ
VRV IV+ heat pump
4P546228-1C – 2021.11