Carel plug-in PJ32C, User Manual

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The plug-in series instruments are supplied ready to use. They are in fact programmed in the factory (default settings) to respond to
the more common requirements. The programming is performed by assigning all the parameters the more frequently required value;
the table below lists the parameters and the corresponding default value.
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& ambient probe calibration ) -127 127
°C/°F x 0,1
measurement stability (probe delay and range limit), 1 = fast &
1 15
selection of probe to display (0 = ambient, 1 = defrost) &
0 1
selection °C/°F (0=°C) &
0 1
UG control differential (hysteresis) )
0 19 °C/°F
U minimum set allowed to the user & -50 127
°C/°F
U maximum set allowed to the user & -50 127
°C/°F
U enable alarm (G (1=enable) &
0 1
U set automatic variation of the Set Point for night operation & -20
20 °C/°F
F compressor start delay at instrument on &
0 15 min
F minimum time between 2 successive starts of the compressor &
0 15 min
F minimum compressor off time &
0 15 min
F minimum compressor on time &
0 15 min
F Duty Cycle safety relay ON time &
0 100 min
FF continuous cycle duration &
0 15 hours
F alarm bypass time after continuous cycle &
0 15 hours
G type of defrost (0=heat el., 1=gas, 2=heat. el. time, 3=gas time) &
0 3
G, interval between two defrosts )
0 199 hours/min
GW end defrost temperature )
-50 127 °C/°F
G3 maximum defrost duration or effective duration for G=2 or G=3 )
1 199 min/s
G defrosting at instrument on (1=yes) &
0 1
G defrost delay &
0 199 min
G display off during defrost (1=yes) &
0 1
GG post-defrost dripping time )
0 15 min
G alarm bypass time after defrosting )
0 15 hours
G defrost priority over minimum compressor times (1=yes) &
0 1
G& time basis (0 =hours/min, 1=min/s) &
0 1
$ alarm/fan differential &
0 19 °C/°F
$/ shift low temperature alarm threshold )
0 127 °C/°F
$+ shift high temperature alarm threshold )
0 127 °C/°F
$G temperature alarm delay &
0 199 min
$ digital input configuration &
0 4
$ alarm input detection delay &
0 199 min
) fan operating mode &
0 1
) fan on temperature )
-50 127 °C/°F
) fans off with compressor off (1=yes) &
0 1
) fans off during defrost (1=yes) &
0 1
)G fan time-out during post dripping )
0 15 min
+ serial address &
0 199
+ IR34S: enable defrosting, IR34C: multifunction relay function &
0 1
+ disable keypad, 0=disabled &
0 1
+ disable buzzer &
0 1
/ control Set Point 6
-50 127 °C/°F
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To achieve the maximum performance from the controls, or in the case of special needs, the values of the operating parameters can
be modified. The following notes describe the factory settings and the parameters which are more frequently modified (Set Point,
differential, etc.). Furthermore, for convenience, all parameters which should be checked before operating the unit are indicated.