Step 5 — complete refrigerant piping connections – Bryant 569J User Manual
Page 11
11
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 — Complete Refrigerant Piping
Connections
IMPORTANT: Do not bury refrigerant piping
underground.
IMPORTANT: A refrigerant receiver is not provided
with the unit. Do not install a receiver.
Provide Safety Relief —
If local codes dictate an additional safety relief device,
purchase locally and install locally. Installation will
require the recovery of the factory shipping charge before
the factory tubing can be cut and the supplemental relief
device is installed.
Model 569J***D/E has two separate refrigeration systems. If
required, each circuit will require a field-supplied/installed
supplemental relief device.
Check 569J Model with Evaporator Coil Connections —
Confirm before installation of unit that the evaporator coil
connections are consistent with this 569J model. See
Table 3 on page 9.
Determine Refrigerant Line Sizes —
Select the recommended line sizes for 569J***A/B and
569AJ***D/E unit from the appropriate tables.
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 additional
details on refrigeration specialties devices.
Determine equivalent line length adjustments for path and
components and add to linear line lengths. See Table 4,
Equivalent Lengths for Common Fittings, for usual fitting
types. Also identify adjustments for refrigeration
specialties. Refer to the indoor unit installation
instructions for additional information.
NOTE: Equivalent line lengths will vary based on tube
diameter. Calculate equivalent line length for each pipe by
adding equivalent length adjustments to linear lengths for
each pipe.
Table 4 – Equivalent Lengths for Common Fittings (ft)
Nominal
Tube OD
Elbows
90° Std 90° Lrad 90° Street 45° Std 45° Street
3
/
8
1.3
0.8
2.2
0.6
1
1
/
2
1.4
0.9
2.3
0.7
1.1
5
/
8
1.6
1
2.5
0.8
1.3
3
/
4
1.8
1.2
2.9
0.9
1.5
7/8
2
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
1
5
/
8
4
2.6
6.3
2.1
3.4
2
1
/
8
5
3.3
8.2
2.6
4.5
Nominal
Tube OD
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
1
1.4
1.6
3
/
4
3.5
1.2
1.7
1.8
7/8
4
1.4
1.9
2
1
1
/
8
5
1.7
2.3
2.6
1
3
/
8
7
2.3
3.1
3.3
1
5
/
8
8
2.6
3.7
4
2
1
/
8
10
3.3
4.7
5
Enter the appropriate table to select the recommended line
sizes.
Model:
Line Sizes Table
Quantity of Line Sets
569J***A/B
5
1
569J***D/E
6
2
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
subcooling 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 accommodate.
Longer linear tube lengths will also reduce the amount of
liquid lift possible.
Check Tables 5 (569J***A/B) and 6 (569J***D/E) for
maximum liquid lift capabilities for line sizes. Reselect
the liquid line tube size if necessary. If maximum
available tube size cannot provide the required lift
distance on this installation, relocate the outdoor unit to
reduce the equivalent line length or the lift requirement.
569J