
321023
8
1 COMPONENT SPECIFICATIONS
WARNING
To avoid risk of electrical shock that can cause death or severe personal injury, disconnect unit from
power before servicing unless tests require power. Discharge capacitors through a 10,000 ohm
resistor before handling. Wires removed during disassembly must be replaced on correct terminals
to ensure proper grounding and polarization.
Component Specifications all parts 115VAC/60HZ unless noted
Compressor Run Capacitor Volts............................................................................................................... 220 VAC
Capacitance...................................................................................................... 15µfd ± 10%
Compressor BTUH ............................................................................................................. 905 BTUH
Watts................................................................................................................. 60 Hz / 153 watts
Current Lock rotor............................................................................................. 19.0 amps ± 15%
Current Full load ............................................................................................... 1.26 amps ± 15%
Resistance Run windings ................................................................................. 3.33 ohms ± 15%
Resistance Start windings ................................................................................ 4.28 ohms ± 15%
Electric Damper Control Maximum closing time (RX256DT7X1)............................................................ 8 seconds
Maximum closing time (RX256DT4X1, RX256ET2B1, RX256ET2W1) .......... 36 seconds
Temperature Rating ......................................................................................... 20°F - 110°F
RPM (RX256DT7X1) ....................................................................................................... 5
RPM (RX256DT4X1, RX256ET2B1, RX256ET2W1).............................................. 1
Thermistor Temperature................................................................................................ Resistance
77°F...................................................................................................................................... 10,000 ohms ± 1.8%
36°F...................................................................................................................................... 29,500 ohms ± 1.0%
0°F........................................................................................................................................ 86,300 ohms ± 1.8%
Condenser Motor Rotation (facing end opposite shaft) .............................................................. Clockwise
RPM ..................................................................................................................................... 1120 RPM
Watts................................................................................................................. 3.4 watts ± 15% @ 115 VAC
Current.............................................................................................................. 0.085 amps ± 15% @ 115
VAC
Evaporator Fan Motor Rotation (facing end opposite shaft) .............................................................. Clockwise
RPM ..................................................................................................................................... 2800 RPM
Watts................................................................................................................. 6.0 watts ± 15% @ 115 VAC
Note: Fan blade must be fully seated
on shaft to achieve proper airflow.
Overload/Relay Ult. trip amps @ 158°F (70°C) ......................................................................... 2.40 amps ± 15%
Close temperature ............................................................................................ 140° ± 10°
Open temperature (RX256DT7X1) .................................................................. 230° ± 5°
Open temperature (RX256DT4X1, RX256ET2B1, RX256ET2W1)................. 284° ± 9°
Short time trip (seconds) (RX256DT7X1) ...................................................... 17 seconds ± 5
Short time trip (seconds) (RX256DT4X1, RX256ET2B1, RX256ET2W1) ...... 10 seconds ± 5
Short time trip (amps @ 77°F (25°C) .......................................................... 12 amps ± 2 amps
Thermostat (Defrost) Volts............................................................................................................ 120/240 VAC
Watts (RX256DT7X1) ............................................................................................ 475 watts
Watts (RX256DT4X1, RX256ET2B1, RX256ET2W1)........................................ 495 watts
Current (RX256DT7X1) ......................................................................................... 10/5 amps
Current (RX256DT4X1, RX256ET2B1, RX256ET2W1)..................................... 5.8/2.9 amps
Resistance across terminals:
Above 42°F ± 5° ............................................................................................... Open
Below 12°F +7° .................................................................................................... Closed
Evaporator Heater
26 cu. ft.
Volts............................................................................................................... 115 VAC
Wattage.......................................................................................................... 450 ± 5% watts @ 115 VAC
Resistance ..................................................................................................... 29 ± 5% ohms
Control Board Volts............................................................................................................... 120 VAC, 60 HZ
....................................................................................................................... See Control board
troubleshooting section.
Auger Motor Rotation (facing end opposite shaft) Power to blue and white is clockwise. Power to orange
and white is counterclockwise.
RPM ............................................................................................................... 17 ± 3 RPM
Water Valve Watts.............................................................................................................. Brown side 35W
Yellow side 20W