Charging Refrigerant; Precautions When Charging Refrigerant - Daikin VRV 5 REYA8A7Y1B Installer And User Manual

19 Charging refrigerant

In this chapter

19.1 Precautions when charging refrigerant

REMA5+REYA8~20A7Y1B
VRV 5 heat recovery
4P687640-1 - 2022.07
19.1 Precautions when charging refrigerant ................................................................................................................................. 105
19.2 About charging refrigerant..................................................................................................................................................... 106
19.3 About the refrigerant ............................................................................................................................................................. 107
19.4 To determine the additional refrigerant amount .................................................................................................................. 107
19.5 To charge refrigerant: Flow chart .......................................................................................................................................... 110
19.6 To charge refrigerant.............................................................................................................................................................. 110
19.7 Error codes when charging refrigerant .................................................................................................................................. 113
19.8 Checks after charging refrigerant........................................................................................................................................... 113
19.9 To fix the fluorinated greenhouse gases label ....................................................................................................................... 113
19.10 To check for refrigerant leaks after charging......................................................................................................................... 113
INFORMATION
Also read the precautions and requirements in the following chapters:
▪
General safety precautions
▪
Preparation
WARNING
▪
Only use R32 as refrigerant. Other substances may cause explosions and
accidents.
▪
R32 contains fluorinated greenhouse gases. Its global warming potential (GWP)
value is 675. Do NOT vent these gases into the atmosphere.
▪
When charging refrigerant, ALWAYS use protective gloves and safety glasses.
NOTICE
If the power of some units is turned off, the charging procedure cannot be finished
properly.
NOTICE
In case of a multiple outdoor system, turn on the power of all outdoor units.
NOTICE
Turn ON the power 6 hours before operation in order to have power running to the
crankcase heater and to protect the compressor.
NOTICE
If operation is performed within 12 minutes after the indoor and outdoor units are
powered on, the compressor will not operate before the communication is
established in a correct way between outdoor unit(s) and indoor units.
NOTICE
Make sure all connected indoor units are recognised (see [1-10] in
monitoring settings" [
19
4
133]).
Charging refrigerant
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"21.1.7 Mode 1:
Installer and user reference guide
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