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Installation Instructions
Bosch 18 SEER2 Series Inverter Ducted Packaged Heat Pump - BTC 761703104 A (11.2022)
4 Installation
4.1 Pre-Installation
Before installation, carefully check the following:
1. Unit should be installed in accordance with national and local safety
codes, including but not limited to ANSI/NFPS No. 70, local plumbing and
wastewater codes and any other applicable codes.
2. For rooftop installation, be sure the structure has enough strength to
support the weight of unit. Unit must be installed on a field supplied roof
curb or rack and leveled.
3. For ground level installation, a field supplied level slab must be used.
4. Condenser airflow should not be restricted.
5. On applications when a roof curb is used, the unit must be positioned on
the curb so the front of the unit is tight against the curb. If the unit is to
be mounted on a curb in a downflow application, refer to Figure 13, and
convert panels prior to rigging and lifting. The panel removal process may
require the unit to be on the ground.
4.2 Rigging And Lifting
Figure 5
Unit Height
Minimum Height 36"
Exercise care when moving the unit. Do not remove any packaging until the unit is
near the place of installation. Rig the unit by attaching chain or cable slings to the
lifting holes provided in the base rails. Spreader bars, whose length exceeds the
largest dimension across the unit, MUST be used across the top of the unit.
When rigging/lifting the unit, the minimum height between the top of the rigging
cables' connection point and top of unit should be 36 in. Refer to Figure 5.
CAUTION:
Before lifting, make sure the unit weight is distributed
equally on the rigging cables so it will lift evenly.
CAUTION:
All panels must be secured in place when the unit is lifted.
The condenser coils should be protected from rigging
cable damage with plywood or other suitable material.
4.3 Location Restrictions
Ensure the top discharge area is unrestricted for at least 60 inches above the unit.
Do not locate outdoor unit near bedrooms since normal operational noise levels
may be disturbing to building occupants.
Position unit to allow adequate space for unobstructed airflow, wiring, and
serviceability.
Do not restrict outdoor airflow. An air restriction at either the outdoor air inlet or
the fan discharge may be detrimental to compressor life.
Do not place the unit where water, ice, or snow from an overhang or roof will
damage or flood the unit. Do not install the unit on carpeting or other combustible
materials. Slab-mounted units should be at least 2 in. (51 mm) above the highest
expected water and runoff levels. Do not use unit if it has been under water.
Maintain a distance of 24 inches between units. Position unit so water, snow, or ice
from roof or overhang cannot fall directly on unit.
See Fig. 7 and Fig. 8 for minimum clearance requirements.
Cold climate considerations (heat pump only)
NOTICE:
Precautions must be taken for units being installed in areas
where snow accumulation and prolonged below-freezing
temperatures occur.
