3 User safety instructions
Installation and operation manual
6
REYQ8~20+REMQ5U7Y1B
VRV IV+ heat recovery
4P546222-1B – 2020.10
WARNING
During tests, NEVER pressurize the product with a
pressure higher than the maximum allowable pressure (as
indicated on the nameplate of the unit).
CAUTION
Do not vent gases into the atmosphere.
WARNING
Any gas or oil remaining inside the stop valve may blow off
the spun piping.
If these instructions are NOT followed correctly it may
result in property damage or personal injury, which may be
serious depending on the circumstances.
WARNING
NEVER remove the spun piping by brazing.
Any gas or oil remaining inside the stop valve may blow off
the spun piping.
WARNING
▪ ONLY use R410A as refrigerant. Other substances
may cause explosions and accidents.
▪ R410A contains fluorinated greenhouse gases. Its
global warming potential (GWP) value is 2087.5. Do
NOT vent these gases into the atmosphere.
▪ When charging refrigerant, ALWAYS use protective
gloves and safety glasses.
CAUTION
Do NOT push or place redundant cable length in the unit.
WARNING
▪ If the power supply has a missing or wrong N-phase,
equipment might break down.
▪ Establish proper earthing. Do NOT earth the unit to a
utility pipe, surge absorber, or telephone earth.
Incomplete earthing may cause electrical shock.
▪ Install the required fuses or circuit breakers.
▪ Secure the electrical wiring with cable ties so that the
cables do NOT come in contact with sharp edges or
piping, particularly on the high-pressure side.
▪ Do NOT use taped wires, stranded conductor wires,
extension cords, or connections from a star system.
They can cause overheating, electrical shock or fire.
▪ Do NOT install a phase advancing capacitor, because
this unit is equipped with an inverter. A phase
advancing capacitor will reduce performance and may
cause accidents.
WARNING
▪ All wiring MUST be performed by an authorised
electrician and MUST comply with the applicable
legislation.
▪ Make electrical connections to the fixed wiring.
▪ All components procured on-site and all electrical
construction MUST comply with the applicable
legislation.
WARNING
ALWAYS use multicore cable for power supply cables.
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.
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.
For the user
3
User safety instructions
Always observe the following safety instructions and regulations.
Summary of Contents for REYQ8U7Y1B
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