AAON RQ NextGen Series, Установка, эксплуатация и обслуживание

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Freeze Stat Startup
Freeze Stat is an adjustable temperature
sensor (-23.3 ° C to 21.1 °C [ -10 to 70°F])
mounted on the tubing of the first cooling
circuit and wired to de energize all cooling
circuits if tubing temperature falls below
setpoint. Option is used to prevent freezing of
evaporator coil.
Recommended Setting : 0 ° C to 1.7 ° C (32 ° F
to 35º F
Condenser Fan EC Motor Startup
The fan cycling option uses a fan cycle switch
to switch between one of the discrete speed
inputs (see Table 17) 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 17.
AAON Condenser Head Pressure Module is
used for variable speed control of the motor
to maintain a head pressure. The motor must
be factory wired to the PWM outputs of the
AAON Condenser Head Pressure Module.
See AAON literature for further information
(https://www.aaon.com/Controls).
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 17 - EC 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
DO NOT OVERCHARGE!
Refrigerant overcharging leads to
excess refrigerant in the condenser
coils resulting in elevated compressor
discharge pressure.
CAUTION