7
Step 2 — Complete Pre-Installation Checks
CHECK UNIT ELECTRICAL CHARACTERISTICS
Confirm before installation of unit that voltage, amperage and
circuit protection requirements listed on unit data plate agree
with power supply provided.
UN-CRATE UNIT
Remove unit packaging except for the top skid assembly,
which should be left in place until after the unit is rigged into
its final location.
INSPECT SHIPMENT
File a claim with shipping company if the shipment is damaged
or incomplete.
CONSIDER SYSTEM REQUIREMENTS
Consult local building codes and National Electrical Code
(NEC, U.S.A.) for special installation requirements.
Allow sufficient space for airflow clearance, wiring, refriger-
ant piping, and servicing unit. See Fig. 3 for unit dimensions
and Table 4 for weight distribution data.
Locate the unit so that the outdoor coil (condenser) airflow is
unrestricted on all sides and above.
The unit may be mounted on a level pad directly on the base chan-
nels or mounted on raised pads at support points. See Table 4 for
weight distribution based on recommended support points.
NOTE: If vibration isolators are required for a particular installa-
tion, use the data in Table 4 to make the proper selection.
Step 3 — Prepare Unit Mounting Support
SLAB MOUNT
Provide a level concrete slab that extends a minimum of 6 in.
(150 mm) beyond unit cabinet. Install a gravel apron in front of
condenser coil air inlet to prevent grass and foliage from
obstructing airflow.
Step 4 — Rig and Mount the Unit
RIGGING
These units are designed for overhead rigging. Refer to the rig-
ging label for preferred rigging method. Spreader bars are not
required if top crating is left on the unit. All panels must be in
place when rigging. As further protection for coil faces, ply-
wood sheets may be placed against the sides of the unit, behind
cables. Run cables to a central suspension point so that the an-
gle from the horizontal is not less than 45 degrees. Raise and
set the unit down carefully.
If it is necessary to roll the unit into position, mount the unit on
longitudinal rails, using a minimum of 3 rollers. Apply force to
the rails, not the unit. If the unit is to be skidded into position,
place it on a large pad and drag it by the pad. Do not apply any
force to the unit.
Raise from above to lift the unit from the rails or pad when unit
is in its final position.
After the unit is in position, remove all shipping materials and
top crating.
Step 5 — Determine Refrigerant Line Sizes
Select the recommended line sizes for 569J***A/B/G/H and
569J***D/E/F unit from the appropriate tables. See Tables 8,
9, and 10.
Determine the linear length of interconnecting piping required
between the outdoor unit and indoor unit (evaporator). Consider
and identify also the arrangement of the tubing path (quantity
and type of elbows in both lines), liquid line solenoid size, filter
drier and any other refrigeration specialties located in the liquid
line. Refer to the indoor unit installation instructions for addi-
tional details on refrigeration specialties devices.
Determine equivalent line length adjustments for path and
components and add to linear line lengths. See Table 7, Equiv-
alent Lengths for Common Fittings, for usual fitting types.
Also identify adjustments for refrigeration specialties. Contact
Bryant Applications Engineering for additional data and infor-
mation on equivalent lengths.
Table 7 — Equivalent Lengths for Common Fittings (ft)
NOTE: Equivalent line lengths will vary based on tube diameter.
Calculate equivalent line length for each pipe by adding equiva-
lent length adjustments to linear lengths for each pipe.
Enter the appropriate table to select the recommended line sizes
per the following table.
LIQUID LIFT
A liquid lift condition exists when the outdoor unit is located
below the indoor (evaporator) unit and liquid flows vertically
up in a portion of the liquid line. The vertical column of liquid
reduces the available state point sub-cooling at the evaporator
coil’s thermal expansion valve. This effect reduces the length
of liquid lift (feet of elevation) that a liquid line size can
CAUTION
UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment dam-
age.
All panels must be in place when rigging. Unit is not de-
signed for handling by fork truck when packaging
is removed.
If using top crate as spreader bar, once unit is set, carefully
lower wooden crate off building roof top to ground. Ensure
that no people or obstructions are below prior to lowering
the crate.
NOMINAL
TUBE OD
(in.)
ELBOWS
90° Std
90° Lrad 90° Street
90° Std
90° Street
3
/
8
1.3
0.8
2.2
0.6
1.0
1
/
2
1.4
0.9
2.3
0.7
1.1
5
/
8
1.6
1.0
2.5
0.8
1.3
3
/
4
1.8
1.2
2.9
0.9
1.5
7
/
8
2.0
1.4
3.2
0.9
1.6
1
1
/
8
2.6
1.7
4.1
1.3
2.1
1
3
/
8
3.3
2.3
5.6
1.7
3.0
1
5
/
8
4.0
2.6
6.3
2.1
3.4
2
1
/
8
5.0
3.3
8.2
2.6
4.5
NOMINAL
TUBE OD
(in.)
TEES
Branch Flow
Straight-Thru
No Reduct Reduce 25% Reduce 50%
3
/
8
2.6
0.8
1.1
1.3
1
/
2
2.7
0.9
1.2
1.4
5
/
8
3.0
1.0
1.4
1.6
3
/
4
3.5
1.2
1.7
1.8
7
/
8
4.0
1.4
1.9
2.0
1
1
/
8
5.0
1.7
2.3
2.6
1
3
/
8
7.0
2.3
3.1
3.3
1
5
/
8
8.0
2.6
3.7
4.0
2
1
/
8
10.0
3.3
4.7
5.0
MODEL NUMBER
POSITION #8
TABLE
QUANTITY OF
LINE SETS
569J***A/B/G/H
1
569J***D/E
2
569J*12F only
2
