SYSVRF2 IM

2
Vacuum drying
Use the vacuum pump to create a vacuum drying in the
connection pipe at the gas side and liquid side concurrently.
Charging refrigerant
The additional refrigerant charge required depends on the
lengths and diameters of the outdoor and indoor liquid pipes
Electrical wiring
For outdoor unit power wire sizing and circuit breaker sizing,
refer to “Outdoor units electrical characteristics” table in this
manual.
To prevent misoperation of the air conditioner, do not interleave
or entwine the power wire with the communication wires of the
indoor/outdoor unit.
The appliance is not intended for use by young children or
the elderly without supervision.
Young children should be supervised to ensure that they
do not play with the appliance.
Do not install the air conditioner in areas that contain:
Petroleum.
Salty air (near the coast). (Except for corrosion-resistant
models)
Caustic gas (e.g., sulfide) in the air (near a hot spring).
Voltage that vibrates significantly.
In buses or cabinets.
In kitchens full of vapor from cooking oil
Strong electromagnetic waves.
Flammable materials or gas.
Acid or alkaline liquid that evaporates.
Other special conditions.
The insulation of the metal parts of the building and the air
conditioner should comply with the National Electric
Standard.
Acceptance and Unpacking
After the machine arrives, check whether it is damaged. If the
surface or inner side of the machine is damaged, submit a
written report to the shipping company.
Check whether the model, specifications, and quantity of the
equipment complies with the contract.
After removing the outer packaging, store the operating
instructions and count the accessories.
Refrigerant pipe
Check the model and name to avoid installation mistakes.
An additionally purchased refrigerant branch pipes (branch
joints and branch pipes) must be used to install the refrigerant
pipes.
The refrigerant pipes must be the specified diameter. Nitrogen
at a certain pressure must be filled into the refrigerant pipe
before welding.
The refrigerant pipes must undergo heat insulation treatment.
After the refrigerant pipe is installed completely, the outdoor
unit stop valves cannot be open before performing the airtight
test and creating a vacuum. The gas-side and liquid-side pipes
must undergo the gastightness test and vacuum drying.
Gastightness test
The refrigerant pipes must undergo the gastightness test.
2. CONSTRUCTION CHECKPOINTS
CAUTION
This A/C is an amenity unit. Do not install it in places containing
machines, precise instrument, food, plant, animal, artwork, or
any area designated for another use.
Ground the air conditioner.
Do not connect the ground wire to gas or water pipes, lightning
rods, or a telephone ground wire. Incomplete grounding may
result in electric shocks.
Install an earth leakage breaker.
Failure to do so may result in electric shocks.
Connect the outdoor unit wires, and then connect the indoor
unit wires.
Do not connect the air conditioner to the power source until the
wiring and piping is completed.
Install the drainage pipe to ensure proper drainage and insulate
it to prevent condensation.
Improper drain piping may result in water leaks and property
damage.
Install the indoor and outdoor units, power supply wiring, and
connecting wires at least 1 meter away from televisions or
radios to prevent interference or noise.
Depending on the radio waves, 1 meter may not be sufficient to
eliminate the noise.
Power on the indoor unit after performing the gastightness test
and vacuum drying.
Trial run
Before operation, remove the six pieces of PE foaming at the
rear of the unit that protect the condenser. Be careful not to
damage the fin, or the heat exchange performance may be
affected.
Perform the trial run only after the outdoor unit has been
powered on for over 12 hours.