AAON RN-140 - Manual (Page 80)

80
Condenser Fan Electronically
Commutated Motor (ECM) Startup
The fan cycling option uses a fan cycle
switch to switch between one of the discrete
speed inputs (see Table 27) on the motor
thus cycling between two preset speeds
based upon discharge pressure of the unit.
By connecting 24VAC to a single or
combination of the yellow, white, or orange
wires, the motor will run at the discrete
speeds in Table 27.
With Customer Provided Unit Controls or
WattMaster Unit Controls the WattMaster
Condenser Head Pressure Module is used
for variable speed control of the motor to
maintain a head pressure. The motor should
be factory wired to the PWM outputs of the WattMaster Condenser Head Pressure
Module. See WattMaster literature for
further information.
(http://www.orioncontrols.com)
With JENEsys Unit Controls the controller
modulates the ECM to maintain head
pressure.
Note
High voltage wires out of the motor:
Black & Brown - 1 Phase Line Voltage
Green - Ground
Low control voltage wires out of the motor:
Blue - Common
Yellow - Variable Speed Control
Table 27 - ECM Condenser Fan Cycling Options
Color Terminal
Customer
Connection Option 1 Option 2 Option 3 Option 4 Option 5
Black
0.50
BWS L1
208-230
VAC
208-230
VAC
208-230
VAC
208-230
VAC
208-230
VAC
Brown
0.50
BWS L2
208-230
VAC
208-230
VAC
208-230
VAC
208-230
VAC
208-230
VAC
Green
#10
EYELET Ground GND GND GND GND GND
Blue
0.50
BWS Common Common 24 VAC 24 VAC 24 VAC 24 VAC
Yellow
0.50
BWS Signal PWM 24 VAC 24 VAC
White
0.50
BWS Signal 24 VAC 24 VAC
Orange
0.50
BWS Signal 24 VAC 24 VAC
RPM 300-1100 300 500 850 1100
Rotation CCW CCW CCW CCW CCW
ECM Toolbox ID Variable Speed 4 Speed 3 Speed 2 Speed 1
20% PWM RPM 300
100% PWM RPM 1100