Bryant 569J Series Installation, Start-Up And Service Instructions Manual page 23

The 569J***D/E/F is a dual- - circuit, two-stage cooling
unit. Select a two—stage cooling thermostat.
Select a thermostat cable or equivalent single leads of
different colors with minimum of four leads for 569J***A/B
or five leads for 569J***D/E/F/G/H unit. Check the
thermostat installation instructions for additional features
which might require additional 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. 19.
Fig. 19 - - Control Transformer Wiring
External Devices —
The 569J control transformers provide 24- - v NEC Class 2
power sources to energize external control devices. These
devices will include the indoor fan motor contactor (or
control relay). These devices may also include liquid line
solenoid valve (two on 56(J***D/E/F models), economizer
control relay, supplemental electric heater contactors or
control relays and other devices selected by system designer.
Control transformer TRAN1 provides control power through
terminal R to C on the field connection terminal strip TB for
supply fan motor interlock. This source may also be used to
energize economizer control relay and electric heater
contactors or relays. Maximum available power is 20 va.
Check concurrent loadings by external control devices. If the
maximum concurrent loading exceeds 20 va, purchase and
install the accessory Transformer- - Relay package (available
for 208/230 and 460- - v units).
569J***D/E/F Only: Control transformer TRAN3 provides
control power through terminals A1 (9) and A2 (10) to C for
liquid line solenoids. Maximum available power is 75 va.
These outputs are switched ON/OFF by the Solenoid Valve
Relays.- -
C10079
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