Daikin VRV IV+, Installer And User Reference Manual

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8 | Commissioning
Installer and user reference guide
110
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1A – 2019.10
Air inlet/outlet
Check that the air inlet and outlet of the unit is NOT obstructed by paper sheets,
cardboard, or any other material.
Additional refrigerant charge
The amount of refrigerant to be added to the unit shall be written on the included "Added
refrigerant" plate and attached to the rear side of the front cover.
Installation date and field setting
Be sure to keep record of the installation date on the sticker on the rear of the upper front
panel according to EN60335‑2‑40 and keep record of the contents of the field setting(s).
8.4 About the test run
The procedure below describes the test operation of the complete system. This
operation checks and judges following items:
▪ Check for incorrect wiring (communication check with indoor units).
▪ Check of the stop valves opening.
▪ Judgement of piping length.
▪ Gathering reference data for leak detection functionality. If the leak detection
functionality is required, the test run needs to be executed including a detailed
refrigerant situation check. If the leak detection functionality is NOT required, the
test run can skip the detailed refrigerant situation check. This can be defined by
setting [2‑88].
INFORMATION
The refrigerant situation check cannot be performed beyond the following limits:
▪
Outdoor temperature: 0~43°C DB
▪
Indoor temperature: 20~32°C DB
Value [2‑88] Description
0 The test run will be executed including the detailed
refrigerant situation check. After the test run, the unit
will be prepared for leak detection functionality (for
more details, see
"7.4 Using the leak detection
function" [
4
105]).
1 The test run will be executed without the detailed
refrigerant situation check. After the test run, the unit
will NOT be prepared for leak detection functionality.