
7
Parameters (Continued)
Example 1 - To adjust the time-of-day
- Press and hold SET for 5 seconds
- Press SET again
- Press UP or DOwN until the correct time appears on the display
- Press SET to accept the new time
- Press DOwN twice to exit the programming mode
Example 2 - To set one defrost a day, at 11:59 PM
- Press and hold SET and DOwN for 10 seconds
- Press DOwN six times to go to the Defrost Interval (
dFin
)
- Press SET to change the parameter
- Press DOwN until
tdAy
appears on the display
- Press SET to accept the option
- Press DOwN eight times to go to the Number of Defrosts (
noDF
)
- Press SET to change it
- Press UP or DOwN until
1
appears on the display
- Press SET to accept the change
- Press DOwN to go to Defrost Start Time (
dEF1
)
- Press SET to change the time
- Press UP or DOwN until the
11:59
PM appears on the display
- Press SET
- Press DOwN ten times to exit the programming level
ERROR CODES
Display
Control Status
Er 1
ERC Fault – software or hardware failure
Er 2
ERC Communication Fault – indicates that there is a
problem with the display module cable
Er 3
zone Sensor Fault – indicates an open or shorted
temperature sensor
Er 4
Evaporator Sensor Fault – indicates an open or shorted
evaporator sensor
Er 6
Low Temperature Alarm – indicates that the
temperature has dropped below the low alarm setpoint
Er 7
High Temperature Alarm – indicates that the
temperature has gone above the high alarm setpoint
For Error Codes 1 and 2 cut the power to the unit and correct the
problem to reset the display.
For Codes 3 and 4, press the UP or DOwN button on the display to
reset the error message. If the display still shows the message, the
sensor must be replaced.
The Error Codes 6 and 7 will be automatically reset once the
temperature is back within the two setpoints.
TeChNICAL sPeCIFICATIONs
input Power:
120/208-240V AC 50/60 Hz (+10, -15%)
Power Consumption:
5VA @ 120/240V AC
Zone and Evaporator Coil Temperature Sensors:
NTC thermistor. Range – 40°F to 199°F
Ambient Operating Conditions:
– 40°F to 122°F; 0 to 95% RH (non-condensing)
Display Module Dimensions:
2.75”w x 1.10”H x 1.38”D
Case Dimensions:
4.40”w x 7.82”H x 3.80”D
Shipping weight:
3.0 lbs.
Agency Approvals:
c-UR-us Recognized Component – Models ERC2-1xxxxx & ERC2-3xxxxx
c-UL-us Listed Product – Models ERC2-2xxxxxx & ERC2-4xxxxx
NSF International Certified – Models ERC2-1xxxxx & ERC2-2xxxxx
Output Relay Ratings:
Compressor: SPST NO
120V AC
208V AC
240V AC
Horsepower Rating (HP)
1
1.5
2
FLA / LRA
16 / 96
12 / 72
12 / 72
Pilot Duty
470
470
470
Defrost: SPST NO
120V AC
208V AC
240V AC
Resistive Amps
16
16
16
Horsepower Rating (HP)
1/2
3/4
1
Pilot Duty (VA)
470
470
470
Evaporator fan: SPST NO
120V AC
208V AC
240V AC
Resistive Amps
16
16
16
Horsepower Rating (HP)
1/2
3/4
1
FLA / LRA
10 / 59
8 / 48
8 / 48
Pilot Duty (VA)
470
470
470
Alarm: SPST NO
120V AC
208V AC
240V AC
Resistive Amps
5
5
5
Pilot Duty (VA)
240
240
240