20 | Configuration
Installer and user reference guide
144
REYQ8~20+REMQ5U7Y1B
VRV IV+ heat recovery
4P561154-1A – 2020.10
Information codes:
Code Description
Unit is not prepared to execute leak detection operation
(refer to requirements to be able to execute leak
detection operation).
Indoor unit is out of temperature range for leak
detection operation.
Outdoor unit is out of temperature range for leak
detection operation.
Too low pressure was noticed during leak detection
operation. Restart leak detection operation.
Indicates an indoor unit which is not compatible with
leak detection functionality is installed (e.g. Hydrobox
units, …).
Result of leak detection operation is informed in [1‑29].
Steps during leak detection:
Display Steps
Preparation
(a)
Pressure equalisation
Start up
Leak detection operation
Standby
(b)
Leak detection operation is finished
(a) If the indoor temperature is too low, first the heating operation will start.
(b) If the indoor temperature is lower than 15°C due to leak detection operation and
the outdoor temperature is lower than 20°C, the heating operation will start to
maintain basic comfort heating level.
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