Bryant 569J Series Installation, Start-Up And Service Instructions Manual page 22

Fig. 16 - - Weatherproof Cover Installation
All Units —
Voltage to compressor terminals during operation must be
within voltage range indicated on unit nameplate. See
Tables 11 and 12. 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 Tables 11
and 12, Note 4 (see page 25) 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. 29 - - Fig. 31 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. 17
(569J***A/B) and Fig. 18 (569J***D/E/F) depict 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.
(Note 3)
(Note 2)
(Note 2)
(Note 1)
C09022
Note 1: Connect only if thermostat requires 24-vac power source.
Note 2: Connect W1 and W2 if supplemental heaters are installed
Note 3: Y2 connection for Single Circuit/2-Stage units only
Field Wiring
Fig. 17 - - Typical Remote Thermostat Connections
— 569J***A/B and 569J*07G/H
(Note 1)
(Note 3)
(Note 3)
(Note 2)
Note 1: Typical multi-function marking. Follow manufacturer's configuration
instructions to select Y2.
Note 2: Connect only if thermostat requires 24-vac power source.
Note 3: Connect W1 and W2 if supplemental heaters are installed
Field Wiring
Fig. 18 - - Typical Remote Thermostat Connections
569J***A/B Unit - - 569J***A/B unit is a single- - stage
cooling unit. If no economizer function is required, select a
single- - stage cooling thermostat. If an integrated economizer
function is required, select a two- - stage cooling thermostat.
569J*07G/H is a single circuit, two- - stage cooling unit.
Select a two- - stage cooling thermostat.
22
— 569J***D/E/F
C150413
C10078