Read And Save These Instructions - Page 1 of 3
Integrated Electronic
Microprocessor Controller
Programming The Instrument
To Modify The Setpoint
Press and hold the “SET” key for at least 1 second.
Set
Prg
mute
Set
▲
aux
def
▼
▲
aux
3. Quickly press and release the “SET” key again.
Set
To Modify Defrost, Differential or Other Parameters
Prg
mute
Set
▲
aux
Set
▲
aux
Set
Prg
mute
Warning! Save Your Parameter Settings!
1. To store the new parameter values, PRESS and HOLD the “Prg” key for at least 5 seconds.
2. All modifications made to parameters will be lost if you do NOT press a button within 60 seconds. Should
this “timeout” occur, normal operational settings (prior to modifications being made) will resume.
3. If the instrument is switched off before pressing the “Prg” key, all modifications to parameters will be lost.
def
▼
▲
aux
2. Use arrow keys ▲ ▼ on temperature
def
controller to increase (or decrease) the
▼
setpoint.
1. Press & hold “Prg” & “SET” keys together
Set
for five (5) seconds; display will flash “0”,
representing password prompt.
2. Confirm by pressing “SET” key.
3. Press ▲ or ▼ to reach the
def
category to be modified.
▼
4. Press “SET” to modify this selected parameter.
6. Press the “SET” key to temporarily save the new
value and return to the display of the parameter.
7. Press & hold the “Prg” key for at least 5 seconds
to save changes. This action will also mute the
audible alarm (buzzer) & deactivate the alarm relay.
To Activate Manual Defrost
Press and hold the “def” key for at least 5 seconds.
To Activate / Deactivate Auxiliary Output
Press and hold the “aux” key for 1 second.
5. Increase or decrease the value using
def
the ▲ or ▼ button respectively.
▼
How To Change Reading From
Prg
mute
Set
2. Confirm by pressing “SET” key.
▲
aux
4. Press “SET” to modify this selected parameter.
Set
▲
aux
6. Press “SET” key to temporarily save the new
Set
value and return to the display of the parameter.
1. Press and hold “Prg” and “SET” keys
together for at least 5 seconds; display will
Set
show “0”, representing password prompt.
3. Press ▲ or ▼ until reaching the
def
parameter “/ 5”.
▼
5. Press ▲ or ▼ to change value to desired
def
setting: “0” for Celsius (°C) or “1” for
▼
Fahrenheit (°F).
Fahrenheit (°F) To Celsius (°C)
7. Press & hold “Prg” key for at least 5 seconds to
Prg
save changes.
mute
convert to new scale. No conversion is required.
Prg
mute
▲
aux
key for at least 1 second.
Note! All values will automatically
To Reset Any Alarms With Manual
Reset
Press and hold the “Prg” and “aux”
Structural Concepts Corp., 888 E. Porter Rd · Muskegon, MI 49441
Ph: 231.798.8888 / Fax: 231-798-0393 / www.structuralconcepts.com
1
I:\Oper Manuals - PUB\Templates\Carel Controller\Carel Controller IR33.pub
This data derived from Carel Material: ir33 +030220441 - rel. 2.0 - 01.05.2006
Read And Save These Instructions - Page 2 of 3
Integrated Electronic
Microprocessor Controller
User Interface - Display
Summary Table of Alarm and Signals: Display, Buzzer and Relay
reset alarms w/manual reset / reset HACCP alarms / reset temp. monitoring
Structural Concepts Corp., 888 E. Porter Rd · Muskegon, MI 49441
Ph: 231.798.8888 / Fax: 231-798-0393 / www.structuralconcepts.com
2
I:\Oper Manuals - PUB\Templates\Carel Controller\Carel Controller IR33.pub
This data derived from Carel Material: ir33 +030220441 - rel. 2.0 - 01.05.2006
Read And Save These Instructions - Page 3 of 3
Integrated Electronic
Microprocessor Controller
Summary Table of Operating Parameters
CODE PARAMETER UOM* TYPE MINIMUM MAXIMUM DEFAULT
/5
Select Celcius (°C) or Fahrenheit (°F)
flag C 0 1
/c1 Calibration of probe 1 °C/°F C -20 20
/c2 Calibration of probe 2 °C/°F C -20 20
St Temperature set point °C/°F F r2 r1
rd Control delta °C/°F F 20 0.1
dl Interval between defrosts hours F 0 250
dt1 End defrost temperature, evaporator °C/°F F -50 200
dP1 Maximum defrost duration, evaporator min F 1 250
d6 Display on hold during defrost - C 0 2
For Case
Specific
Defaults
See Serial
Label
Located
Near
Electrical
Access
On Your
Case.
For
Additional
Technical
Information
Call
Structural
Concepts
Technical
Service
Dept. at
1(800)
433.9489
dd Dripping time after defrost min F 0 15
d/1 Display of defrost probe 1 °C/°F F - -
* Unit Of Measure
Structural Concepts Corp., 888 E. Porter Rd · Muskegon, MI 49441
Ph: 231.798.8888 / Fax: 231-798-0393 / www.structuralconcepts.com
3
I:\Oper Manuals - PUB\Templates\Carel Controller\Carel Controller IR33.pub
This data derived from Carel Material: ir33 +030220441 - rel. 2.0 - 01.05.2006
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