8
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Commissioning
Installer and user reference guide
108
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1A – 2019.10
8 Commissioning
8.1 Overview: Commissioning
After installation and once the field settings are defined, the installer is obliged to
verify correct operation. Therefore a test run MUST be performed according to the
procedures described below.
This chapter describes what you have to do and know to commission the system
after it is configured.
Commissioning typically consists of the following stages:
1
Checking the "Checklist before commissioning".
2
Performing a test run.
3
If necessary, correcting errors after abnormal completion of the test run.
4
Operating the system.
8.2 Precautions when commissioning
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
CAUTION
Do NOT perform the test operation while working on the indoor units.
When performing the test operation, NOT only the outdoor unit, but the connected
indoor unit will operate as well. Working on an indoor unit while performing a test
operation is dangerous.
CAUTION
Do NOT insert fingers, rods or other objects into the air inlet or outlet. Do NOT
remove the fan guard. When the fan is rotating at high speed, it will cause injury.
NOTICE
Test run is possible for ambient temperatures between –20°C and 35°C.
INFORMATION
During the first running period of the unit, the required power may be higher than
stated on the nameplate of the unit. This phenomenon is caused by the compressor,
that needs a continuous run time of 50 hours before reaching smooth operation and
stable power consumption.
NOTICE
Be sure to turn on the power 6 hours before operation in order to have power
running to the crankcase heater and to protect the compressor.
Summary of Contents for VRV IV+
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