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Table 2.
Condenser coil sensor location (continued)
Unit Size
80
100
120
Low Ambient Damper Wiring
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Verify that no power is present
with a voltmeter.
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury.
All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state/national electrical codes.
Before installing any connecting wiring, refer to
electrical access locations provided on the actuator control
panel and the terminal board locations.
Figure 8.
Low ambient damper control panel
For field connection of the line voltage wiring in the main unit
control panel and the actuator control panel, refer to the wiring
diagram illustrated in
Figure 10, p. 12
the wiring diagram that shipped in the unit.
ACC-SVN137C-EN
Unit Type
RAUJ, CAUJ
RAUJ, CAUJ
RAUJ, CAUJ
Figure 8
for the
and
Figure 11, p. 13
with
Sensor Location - Ckt #1 "A"
32-1/8
48-1/8
28-1/8
Field wiring for the line voltage to the control panel should be
14 gauge minimum.
1. Connect the field provided power wiring for the actuator
control panel to the appropriate condenser fan contactor
terminals inside the main control panel. Refer to the wiring
diagram illustrated in
Figure 10
wiring diagram that shipped in the unit.
2. Insert the field provided power wiring from the main control
panel into the bottom of the actuator control panel and
connect the wires to the appropriate terminals on terminal
board 2TB35. Refer to
and terminal board location; and
Figure 11, p. 13
for terminal designation.
Low Ambient Damper Control Panel
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury.
Disconnect all electric power, including remote
disconnects before servicing. Follow proper lockout/
tagout procedures to ensure the power can not be
inadvertently energized. Verify that no power is present
with a voltmeter.
Connecting the Actuator Control Cable
1. Locate the kit provided control cable and insert it (plug end)
up through the cable access hole in the top of the unit and
plug the actuator pigtail into the control cable plug.
2. Create a drip leg as illustrated in
the cable to the damper assembly using the 3/16-inch hole
and the screw-in wire tie with a #10-16 x 3/4-inch screw.
3. Route the actuator control cable from the damper
assembly to the control panel.
a. 20 Ton through 30 Ton units - route the control cable
from the damper assembly by following the condenser
fan power wires.
b. 40 tons and larger - route the control cable from the
damper assembly by following the compressor power
wires along the unit base.
4. Insert the cable through the bottom of the control panel and
connect the wires to the appropriate terminals on terminal
board 2TB34. Refer to
access and
Figure 10, p. 12
terminal designation.
Installation
Sensor Location - Ckt #2 "B"
"32-1/8"
"48-1/8"
"28-1/8"
and
Figure 11
with the
Figure 8
for the wire entry access
Figure 10, p. 12
Figure 9, p. 12
and secure
Figure 8, p. 11
for the wire entry
and
Figure 11, p. 13
and
for
11
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