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CA Model
STANDARD PACKAGE
Figure # 2
[1] CA Model Water-to-Air Heat Pump
[2] Installation and Operation Manual
INITIAL INSPECTION
Please inspect the product carefully for any defects or
discrepancies. Should you identify any issue, contact the
Bosch Wholesaler / Distributor you purchased the unit
from.
GENERAL DESCRIPTION
CA Model Water source Heat Pumps are designed for
use as decentralized room terminals that are field
connected to a closed-circuit piping loop within a
structure. Typically these units are installed in perimeter
zones and are ideal for installations where ducted
systems are impractical.
CA Series provide the best combination of performance
and efficiency available. Safety devices are built into
each unit to provide the maximum system protection
possible when properly installed and maintained.
All units are designed for boiler/tower systems
geothermal closed loop applications and can operate
with fluid temperatures as low as 25°F in heating and as
high as 110°F in cooling. Units are available in 3/4, 1, 1-
1/4 and 1-1/2 tons nominal capacity in cooling. Refer to
the unit specification sheet for precise performance
figures at various entering air and water conditions.
All CA water to Air Heat Pumps conform to UL1995
standard and are certified to CAN/CSA C22.2 No 236 by
.
Intertek-ETL
Heat Pump operating under extreme conditions will
have limitations on air/fluid flow rates and/or
temperatures.
CA Model
50° Minimum Entering Water Temperature (EWT)
for well water applications with sufficient water flow
to prevent freezing. Antifreeze solution is not
1
required for all closed loop applications. Cooling
Tower/Boiler and Geothermal applications should
have sufficient antifreeze solution to protect against
extreme conditions and equipment failure. Frozen
water coils are not covered under warranty.
2
NOTICE: This product should not be used
for temporarily heating/cooling during
construction. Doing so may Affect the units
warranty.
MOVING AND STORAGE
If the equipment is not needed for immediate
installation upon its arrival at the job site, it should be
left in its shipping carton and stored in a clean, dry area.
Units must only be stored or moved in the normal
upright position as indicated by the "UP" arrows on each
carton at all times.
CAUTION: Do not stack units.
Take care when moving the unit 's weight is
located on the left (compressor) end.
Always store and move unit in an upright
position. Take care to protect the unit
cabinet and sub base when moving or
storing. Never move or lift unit by its water
connections. Units must be moved and
stored in an upright position, never lay the
unit on it's side.
LOCATION
Locate the unit in an indoor area that allows easy
removal of the filter and access panels, and has enough
room for service personnel to perform maintenance or
repair. Provide sufficient room to make fluid, electrical
connection(s). If the unit is located in a confined space,
provisions must be made for return air to freely enter the
unit's. Allow adequate room below the unit for a
condensate drain trap and do not locate the unit above
supply piping.
NOTICE: These units are not approved for
outdoor installation; therefore, they must
be installed inside the structure being
conditioned space. Do not locate in areas
that are subject to freezing.
Standard Package | 5
8733942456(2016/04)
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