Bosch BOVA Series Installation Instructions Manual page 5

Installation Instructions
WARNING: REFRIGERANT OIL

Any attempt to repair a central air conditioning product may
result in property damage, severe personal injury, or death.
These units use R-410A refrigerant which operates at 50 to
70% higher pressures than R-22. Use only R-410A approved
service equipment. Refrigerant cylin-ders are painted a
"Rose" color to indicate the type of refrigerant and may
contain a "dip" tube to allow for charging of liquid refrigerant
into the system. All R-410A systems with variable speed
compressors use a PVE oil that readily absorbs moisture
from the atmosphere To limit this 'hygroscopic" action. the
system should remain sealed whenever possible. If a system
has been open to the atmosphere for more than 4 hours, the
compressor oil must be replaced. Never break a vacuum with
air and always change the driers when opening the system for
component replacement.
CAUTION: HOT SURFACE

May cause minor to severe burning. Failure to follow this
Caution could result in property damage or personal injury.
Do not touch top of compressor.
CAUTION: CONTAINS REFRIGERANT

Failure to follow proper procedures can result in personal
illness or injury or severe equipment damage.System
contains oil and refrigerant under high pressure. Recover
refrigerant to relieve pressure before opening system.
CAUTION: GROUNDING REQUIRED

Failure to inspect or use proper service tools may result
in equipment damage or personal injury. Reconnect all
grounding devices. All parts of this product that are capable
of conducting electrical current are grounded. if grounding
wires, screws, straps, clips, nuts, or washers used to
complete a path to ground are removed for service, they must
be returned to their original position and properly fastened.
CAUTION: INDOOR UNIT REQUIRED

The indoor units must be matched with TXV. The model of TXV
can be changed according to the system capacity.
Bosch Thermotechnology Corp. | 12.2016
WARNING: SERVICE VALVES

Failure to follow this warning will result in abrupt release
of system charge and may result in personal injury and/
or property damage. Extreme caution should be exercised
when opening the Liquid Line Service valve. Turn valve stem
counterclockwise only until the stem contacts the rolled edge.
No torque is required.
WARNING: BRAZING REQUIRED

Failure to inspect lines or use proper service tools may result
in equipment damage or personal injury. if using existing
refrigerant lines make certain that all joints are brazed, not
soldered.
WARNING: HIGH CURRENT LEAKAGE

Failure to follow this warning could result in property damage,
severe personal injury, or death.
Grounding is essential before connecting electrical supply.
Bosch IDS BOVA | 5
Data subject to change