Bosch IDS BOVB20 Installation Instructions Manual page 5

WARNING: HAZARDOUS VOLTAGE

Failure to follow this warning could result in property
damage, severe personal injury, or death.

Disconnect all electric power, Including remote disconnects
before servicing. Follow proper lockout/tagout procedures
to ensure the power cannot be inadvertently energized.
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 cylinders 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 POE oil (VG74 or equivalent )
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.
WARNING: 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.
WARNING:
 This product can expose you to chemicals including Lead
and Lead components, which are known to the State
of California to cause cancer and birth defects or other
reproductive harm. For more information go to
P65Warnings.ca.gov.
Bosch IDS BOVB20 Split System Heat Pump - BTC 761701316 C (02.2022)
CAUTION: GROUNDING REQUIRED

WARNING: SERVICE VALVES

WARNING: BRAZING REQUIRED

WARNING: HIGH CURRENT LEAKAGE
NOTICE: INDOOR UNIT REQUIRED

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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.
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.
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.
 Grounding is required before connecting electrical supply.
Failure to follow this warning could result in property
damage, severe personal injury, or death.
The indoor units must be matched with TXV. The model of
TXV can be changed according to the system capacity.
Installation Instructions
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