Using The Leak Detection Function; About Automatic Leak Detection; To Manually Perform A Leak Detection - Daikin VRV IV+ Installer And User Reference Manual

7.4 Using the leak detection function

7.4.1 About automatic leak detection

7.4.2 To manually perform a leak detection

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VRV IV+ heat pump
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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 "8 Commissioning" [
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.
INFORMATION
▪
The weighed and already recorded amount of additional refrigerant charge (not
the total amount of refrigerant present in the system) must be entered.
▪
The leak detection function is not available when Hydrobox units or RA DX indoor
units are connected to the system.
▪
When the height difference between indoor units is ≥50/40 m, the leak detection
function can not be used.
When the leak detection functionality was initially not required but activation is
wanted on a later moment, it is required to fulfil below conditions:
▪ The additional refrigerant charge needs to be inputted in the system's logic.
▪ The system test run has to be re-executed.
Executing the leak detection function one time at site can also be done by
following procedure.
1 Push BS2 one time.
2 Push BS2 one more time.
3 Push BS2 5 seconds.
7 Configuration
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Installer and user reference guide
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