Bryant 569J 08G Series Installation, Start-Up And Service Instructions Manual page 14

Fig. 14 - - Weatherproof Cover Installation
All Units —
Voltage to compressor terminals during operation must be
within voltage range indicated on unit nameplate. See
Table 7. On 3-phase units, voltages between phases must
be balanced within 2% and the current within 10%. Use
the formula shown in the legend for Table 7, Note 4 (see
page 15) to determine the percent of voltage imbalance.
Operation on improper line voltage or excessive phase
imbalance constitutes abuse and may cause damage to
electrical components. Such operation would invalidate
any applicable Bryant warranty.
Field Control Wiring —
569J unit control voltage is 24 v. See Fig. 20 for typical
field control connections and the unit's label diagram for
field-supplied wiring details. Route control wires to the
569J unit through the opening in unit's end panel to the
connections terminal board in the unit's control box.
Remainder of the system controls connection will vary
according to the specific construction details of the indoor
section (air handler or packaged fan coil). Fig. 15 depicts
typical connections to a Bryant 524J fan coil unit. Plan for
field connections carefully and install control wiring
correctly per the project plan. Additional components and
supplemental transformer accessory may be required.
The 569J unit requires an external temperature control
device. This device can be a thermostat (field-supplied) or
a thermostat emulation device provided as part of a
third- - party Building Management System).
Thermostat —
Install a Bryant-approved accessory thermostat according
to installation instructions included with the accessory.
Locate the thermostat accessory on a solid wall in the
conditioned space to sense average temperature in
accordance with the thermostat installation instructions.
The 569J*08G/H unit is a single- - circuit, two- - stage
cooling unit. Select a two- - stage cooling thermostat, with
or without supplemental heating, as needed.
(Note 2)
(Note 2)
(Note 1)
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Note 1: Connect only if thermostat requires 24-vac power source.
Note 2: Connect W1 and W2 if supplemental heaters are installed
Field Wiring
Fig. 15 - - Typical Remote Thermostat Connections
Select a thermostat cable or equivalent single leads of
different colors with minimum of five leads for 569J*08G/H
units. Check the thermostat installation instructions for
additional features
conductors in the cable.
For wire runs up to 50 ft. (15 m), use no. 18 AWG
(American Wire Gage) insulated wire (35C minimum).
For 50 to 75 ft. (15 to 23 m), use no. 16 AWG insulated
wire (35C minimum). For over 75 ft. (23 m), use no. 14
AWG insulated wire (35C minimum). All wire sizes
larger than no. 18 AWG cannot be directly connected to
the thermostat and will require a junction box and splice
at the thermostat.
If the unit will be operating at 208-3-60 power, remove
the black wire (BLK) from the transformer primary
connection labelled "230" and move it to the connection
labelled "208". See Fig. 16.
Fig. 16 - - Control Transformer Wiring
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which might require additional
C14292
C10079