Gas - Daikin VRV 5 S Series Installer And User Manual

2.1.7 Gas

RXYSA4~6A7V/Y1B
VRV 5-S system air conditioner
4P600330-1D – 2023.02
CAUTION
▪
When connecting the power supply: connect the earth cable first, before making
the current-carrying connections.
▪
When disconnecting the power supply: disconnect the current-carrying cables
first, before separating the earth connection.
▪
The length of the conductors between the power supply stress relief and the
terminal block itself MUST be as such that the current-carrying wires are
tautened before the earth wire is in case the power supply is pulled loose from
the stress relief.
NOTICE
Precautions when laying power wiring:
▪
Do NOT connect wiring of different thicknesses to the power terminal block (slack
in the power wiring may cause abnormal heat).
▪
When connecting wiring which is the same thickness, do as shown in the figure
above.
▪
For wiring, use the designated power wire and connect firmly, then secure to
prevent outside pressure being exerted on the terminal board.
▪
Use an appropriate screwdriver for tightening the terminal screws. A screwdriver
with a small head will damage the head and make proper tightening impossible.
▪
Over-tightening the terminal screws may break them.
Install power cables at least 1 meter away from televisions or radios to prevent
interference. Depending on the radio waves, a distance of 1 meter may NOT be
sufficient.
NOTICE
ONLY applicable if the power supply is three‑phase, and the compressor has an ON/
OFF starting method.
If there exists the possibility of reversed phase after a momentary black out and the
power goes ON and OFF while the product is operating, attach a reversed phase
protection circuit locally. Running the product in reversed phase can break the
compressor and other parts.
The gas boiler is factory‑set to:
▪ the type of gas quoted on the type identification plate or on the setting type
identification plate,
▪ the gas pressure quoted on the type identification plate.
Operate the unit ONLY with the gas type and gas pressure indicated on these type
identification plates.
Installation and adaptation of the gas system MUST be conducted by:
▪ personnel qualified for this work,
▪ in compliance with valid gas installation related guidelines,
▪ in accordance with applicable regulations of the gas supply company,
▪ In accordance with local and national regulations.
2 General safety precautions
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Installer and user reference guide
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