Bosch BOVB 18 Series Installation Instructions Manual page 5

Installation Instructions
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 PVE oil (FV50S 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.
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. | 10.2020
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.
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 must be exercised
when opening the Liquid Line Service valve. Turn valve stem
counterclockwise only until the stem contacts the rolled
edge.
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.
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 BOVB 18 | 5
www.
Data subject to change