Nibe ACVM 270, Installation And Maintenance Instructions Manual

Page: 92 / 96

- Locations where substances that can affect the air conditioning unit,
for example, sulphide gas, chlorine, acid or alkaline substances can
occur.
- Locations with direct exposure to oil mist or steam.
- Vehicles and ships.
- Locations where machines that generate high frequency harmonics
are used.
- Locations where cosmetic or special sprays are often used.
- Locations that can be subjected to direct salty atmospheres. In this
case, the outdoor unit must be protected against direct intakes of
salty air.
- Locations where large amounts of snow occur.
- Locations where the system is exposed to chimney smoke.
If the bottom frame of the outdoor section is corroded, or in any
other way damaged, due to long periods of operation, it must
not be used.
Using an old and damaged frame can cause the unit to fall and cause
personal injury.
If soldering near the unit, ensure that solder residue does not
damage the drip tray.
If solder residue enters the unit during soldering, small holes can ap-
pear in the tray resulting in water leakage. To prevent damage, keep
the indoor unit in its packing or cover it.
Do not allow the drainage pipe to exit into channels where
poisonous gases, containing sulphides for example, can occur.
If the pipe exits into such a channel, any poisonous gases will flow
into the room and seriously affect the user's health and safety.
Insulate the cooler unit's connection pipes so that the ambient
air moisture does not condense on them.
Insufficient insulation can cause condensation, which can lead to
moisture damage on the roof, floor, furniture and valuable personal
property.
Do not install the outdoor unit in a location where insects and
small animals can inhabit.
Insects and small animals can enter the electronic parts and cause
damage and fire. Instruct the user to keep the surrounding equipment
clean.
Take care when carrying the unit by hand.
If the unit weights more than 20 kg, it must be carried by two people.
Do not carry by the plastic strap, always use the carry handle when
carrying the unit by hand. Use gloves to minimize the risk of cuts from
the aluminium flanges.
Dispose of any packaging material correctly.
Any remaining packaging material can cause personal injury as it
contains nails and wood.
Do not touch any buttons with wet hands.
This can cause electric shocks.
Do not touch any refrigerant pipes with your hands when the
system is in operation.
During operation the pipes become extremely hot or extremely cold,
depending on the method of operation. This can cause burn injuries
or frost injuries.
Do not shut off the power supply immediately after operation
has start.
Wait at least 5 minutes, otherwise there is a risk of water leakage or
breakdown.
Do not control the system with the main switch.
This can cause fire or water leakage. In addition, the fan can start
unexpectedly, which can cause personal injury.
Especially for units intended for R410A
- Do not use other refrigerants than R410A. R410A means that the
pressure is about 1.6 times as high as conventional refrigerants.
- The service valve's filling connection and control output on the in-
door unit in the system for R410A are different sizes, to prevent the
system being filled with the incorrect refrigerant by mistake. The
machined dimension on the refrigerant pipe’s collared part as well
as the cap nut’s parallel side dimension has been changed to increase
the system's overpressure resistance.
- Therefore, installers and service technicians must ensure that only
tools approved for working with R410A are used.
- Do not use charging bottles. These types of bottles change the
composition of the refrigerant, which makes the performance of the
system worse.
- When filling refrigerant, the refrigerant must always leave the bottle
in liquid form.
NIBE™ SPLIT ACVM 270 92
Miscellaneous
Safety precautions