PENN | TC3B21 | Installation Guide Rev. C | Part No. 24-7664-03558 | Page 1 of 2 | 19 January 2021
TC3B21
Basic Defrost Controller Installation Guide
Basic controller for refrigerated cabinets with energy-saving strategies
E
ENGLISH
-
Controller for normal temperature units
-
Power supply for TC3B21N5x: 115 VAC
-
Power supply for TC3B21N7x: 230 VAC
-
Cabinet probe with a negative temperature coefficient (NTC)
-
Door switch or multi-purpose input
-
Cooling or heating operation
1
MEASUREMENTS AND INSTALLATION
Measurements in mm (inches). Fit the controller to a panel with the snap-in brackets supplied.
INSTALLATION PRECAUTIONS
-
Ensure that the thickness of the panel is between 0.8 mm and 2.0 mm (1/32 in. and
1/16 in.)
-
Ensure that the working conditions are within the limits stated in the TECHNICAL
SPECIFICATIONS section.
-
Do not install the device close to heat sources, equipment with a strong magnetic field,
in places subject to direct sunlight, rain, damp, excessive dust, mechanical vibrations
or shocks.
-
In compliance with safety regulations, install the device correctly to ensure adequate
protection from contact with electrical parts. Fix all protective parts in such a way so
as to need the aid of a tool to remove them.
2
ELECTRICAL CONNECTION
Important
-
Use cables of an adequate wire gauge for the current running through them.
-
To reduce any electromagnetic interference, connect the power cables as far away
as possible from the signal cables.
-
Power supply for TC3B21N5x: 115 VAC.
-
Power supply for TC3B21N7x: 230 VAC.
PRECAUTIONS FOR ELECTRICAL CONNECTION
-
If you use an electrical or pneumatic screwdriver, adjust the torque to a maximum of
0.5 N•m (4 in. lb).
-
If you move the device from a cold to a warm place, the humidity may cause
condensation to form inside. Wait an hour before you switch on the power.
-
Make sure that the supply voltage, electrical frequency, and power are within the set
limits. See TECHNICAL SPECIFICATIONS.
-
Disconnect the power supply before you do any type of maintenance.
-
Do not use the device as safety device.
-
For repairs and further information, contact the Penn sales network.
3
FIRST-TIME
1.
Follow the instructions in MEASUREMENTS AND INSTALLATION to install the controller.
2.
Power up the device as shown in ELECTRICAL CONNECTION and an internal test runs.
The test normally takes a few seconds. When it finishes the display switches off.
3.
Configure the device as shown in Table 6.1 in SETTINGS.
For recommended configuration parameters for first-time use, see the following table.
PAR. DEF. PARAMETER
MIN. - MAX.
SP
32
Setpoint
r1 to r2
P2
1
Temperature unit of measurement
0 = °C
1 = °F
Check that the remaining settings are appropriate; see CONFIGURATION PARAMETERS.
4.
Disconnect the device from the mains.
5.
Make the electrical connection as shown in ELECTRICAL CONNECTION without powering
up the device.
6.
Power up the device.
4
USER INTERFACE AND MAIN FUNCTIONS
4.1
Switching the device on or off
1.
If POF = 1, tap the ON/STAND-BY key for 4 s.
If the device is switched on, the display shows the P5 value, cabinet temperature by default. If
the display shows an alarm code, see ALARMS.
LED
ON
OFF
FLASHING
Compressor on
Compressor off
- Compressor protection active
- Setpoint setting active
Defrost active
-
Dripping active
- If device on, energy
saving active
- If device off, low
consumption active
-
-
°C/°F
View temperature
-
-
Device off
Device on
Device on or off active
If 30 s elapse and you do not press the keys, the display shows the “Loc” label and the keypad
locks automatically.
4.2
Unlocking the keypad
Tap any key for 1 s: the display shows the label “UnL”.
4.3
Setting the setpoint
Check that the keypad is not locked.
1.
Tap the SET key.
2.
Tap the UP or DOWN key within 15 s to set the value within the
limits r1 and r2.
3.
Tap the SET key or do not operate for 15 s.
4.4
Activating manual defrost (if r5 = 0, default)
Check that the keypad is not locked.
1.
Tap the UP key for 2 s.
If P4 = 1, the defrost activates if the evaporator temperature is lower than the d2 threshold.
5
ADDITIONAL FUNCTIONS
5.1
Navigating the additional functions menu
Before you begin, check that the keypad is not locked.
1.
To access the additional functions menu, tap the DOWN key for
4 s.
2.
To navigate to a label, tap the UP or DOWN key within 15 s.
3.
To select a label, tap the SET key.
4.
If you cannot edit the parameter, the value displays.
If you can edit the parameter, tap the UP or DOWN key to
navigate to the value that you want.
5.
To set the parameter value, tap the SET key.
6.
To exit the procedure, tap the ON/STAND-BY key, or do not
operate the controller for 60 s.
5.2
Additional functions menu
Use the additional functions menu to cycle through the labels in the following table.
LABEL
DESCRIPTION
Pb1
Cabinet temperature
Pb2
Auxiliary temperature if P4 = 1 or 2
6
SETTINGS
6.1
Setting configuration parameters
1.
Tap the SET key for 4 s. The display shows the label “PA”.
2.
Tap the SET key.
3.
Tap the UP or DOWN key within 15 s to set the password.
4.
Tap the SET key or do not operate for 15 s. The display shows
the label “SP”.
5.
Tap the UP or DOWN key to select a parameter.
6.
Tap the SET key.
7.
Tap the UP or DOWN key within 15 s to set the value.
8.
Tap the SET key or do not operate for 15 s.
9.
Tap the SET key for 4 s, or do not operate for 60 s, to exit the
procedure.
6.2
Restoring the default factory settings and storing customized settings as
default
Important
- Check that the factory settings are appropriate; see CONFIGURATION
PARAMETERS.
- When you store customized settings, you overwrite the default.
1.
Tap the SET key for 4 s. The display shows the label “PA”.
2.
Tap the SET key.
3.
Tap the UP or DOWN key within 15 s to set the value.
VAL. DESCRIPTION
149
Restores the default factory settings
161
Stores customized settings as default
4.
Tap the SET key or do not operate for 15 s. The display shows
the label “dEF” when you set the value “149” or the label “MAP”
when you set the value “161”.
5.
Tap the SET key.
6.
Tap the UP or DOWN key within 15 s to set “4”.
7.
Tap the SET key or do not operate for 15 s. The display shows
"- - -" flashing for 4 s, then the device exits the procedure.
8.
Interrupt the power supply to the device.
9.
Tap the SET key 2 s before step 6. to exit the procedure
beforehand.
7
CONFIGURATION PARAMETERS
PAR. DEF. SETPOINT
MIN. - MAX.
SP
32
Setpoint
r1 to r2
PAR. DEF. ANALOG INPUTS
MIN. - MAX.
CA1
0
Cabinet probe offset
-25°F/°C to 25°F/°C
CA2
0
Auxiliary probe offset
-25°F/°C to 25°F/°C
P0
1
Probe type
0 = n/a
1 = NTC
P1
1
Enable °C decimal point
0 = No
1 = Yes
P2
1
Temperature unit of measurement
0 = °C
1 = °F
P4
0
Configurable input function
0 = Door switch/multi-pur-
pose input
1 = Evaporator probe
2 = Condenser probe
P5
0
Value displayed
0 = Cabinet temperature
1 = Setpoint
2 = Auxiliary temperature
P8
5
Display refresh time
0 s to 250 s : 10
PAR. DEF. CONTROL
MIN. - MAX.
r0
4
Setpoint differential
1°F/°C to 15°F/°C
r1
-50 Minimum setpoint
-99°F/°C to r2
r2
100 Maximum setpoint
r1 to 199°F/°C
r4
0
Setpoint offset in energy saving
0°F/°C to 99°F/°C
r5
0
Cooling or heating operation
0 = Cooling
1 = Heating
r12
1
Position of the r0 differential
0 = Asymmetric
1 = Symmetric
PAR. DEF. COMPRESSOR
MIN. - MAX.
C0
0
Compressor on delay after power-on
0 min to 240 min
C2
3
Compressor off minimum time
0 min to 240 min
C3
0
Compressor on minimum time
0 s to 240 s
C4
0
Compressor off time during cabinet
probe alarm
0 min to 240 min
C5
10
Compressor on time during cabinet
probe alarm
0 min to 240 min
C6
176
Threshold for high condenser
temperature warning
0°F/°C to 199°F/°C
Differential = 4°F/2°C
C7
194
Threshold for high condenser
temperature alarm
0°F/°C to 199°F/°C
C8
1
High condenser temperature alarm
delay
0 min to 15 min
PAR. DEF. DEFROST (if r5 = 0)
MIN. - MAX.
d0
8
Automatic defrost interval
0 h to 99 h
0 = Only manual
If d8 = 3, maximum interval
d2
46
Threshold for defrost end
-99°F/°C to 99°F/°C
d3
30
Defrost duration
0 min to 99 min
If P4 = 1, maximum duration
d4
0
Enable defrost at power-on
0 = No
1 = Yes
d5
0
Defrost delay after power-on
0 min to 99 min
d6
1
Value displayed during defrost
0 = Cabinet temperature
1 = Display locked
2 = dEF label
d7
2
Dripping time
0 min to 15 min
d8
0
Defrost interval counting mode
0 = Device on hours
1 = Compressor on hours
2 = Hours evaporator
temperature < d9
3 = Adaptive
d9
32
Evaporation threshold for automatic
defrost interval counting
-99°F/°C to 99°F/°C
d11
0
Enable defrost timeout alarm
0 = No
1 = Yes
d18
40
Adaptive defrost interval
0 min to 999 min
If compressor on and
evaporator temperature <
d22
0 = Only manual
d19
6
Threshold for adaptive defrost,
relative to optimal evaporation
temperature
0°F/°C to 40°F/°C
Optimal evaporation
temperature - d19
d20
180
Compressor on consecutive time for
defrost
0 min to 999 min
0 = Disabled
d22
-4
Evaporation threshold for adaptive
defrost interval counting, relative to
optimal evaporation temperature
0°F/°C to 19°F/°C
Optimal evaporation
tempe d22
PAR. DEF. ALARMS
MIN. - MAX.
A1
-20
Threshold for low temperature alarm
(relative to setpoint)
0°F/°C to 99°F/°C
SP - A1
0 = Disabled
A4
20
Threshold for high temperature alarm
(relative to setpoint)
0°F/°C to 99°F/°C
SP + A4
0 = Disabled
A6
12
High temperature alarm delay after
power-on
0 min to 99 min x 10
A7
15
High and low temperature alarms
delay
0 min to 240 min
A11
4
High and low temperature alarms
reset differential
1°F/°C to 15°F/°C
PAR. DEF. DIGITAL INPUTS
MIN. - MAX.
i0
1
Door switch or multi-purpose input
function
0 = None
1 = Compressor off
2 = Energy saving
3 = iA alarm
4 = iA alarm + compressor
off
i1
0
Door switch or multi-purpose input
activation
0 = With contact closed
1 = With contact open
i2
30
Open door alarm delay
-1 min to 120 min
If i0 = 3, multi-purpose input
alarm delay
If i0 = 4, compressor on
delay after alarm reset
-1 = Disabled
i3
15
Regulation inhibition maximum time
with door open
-1 min to 120 min
-1 = Until the closing
i10
0
Door closed consecutive time for
energy saving
0 min to 999 min
After regulation temperature
< SP
0 = Disabled
i13
180
Number of door openings for defrost
0 to 240
0 = Disabled
i14
32
Door open consecutive time for
defrost
0 min to 240 min
0 = Disabled
PAR. DEF. ENERGY SAVING (if r5 = 0)
MIN. - MAX.
HE2
0
Energy saving maximum duration
0 min to 999 min
0 = Until the door opening
HE3
2
No operation on the keyboard
consecutive time for low consumption
0 min to 240 min
0 = Disabled
PAR. DEF. SAFETIES
MIN. - MAX.
POF
1
Enable ON/STAND-BY key
0 = No
1 = Yes
PAS
0
Password
-99 to 999
0 = Disabled
8
ALARMS
COD. DESCRIPTION
RESET
REMEDIES
Pr1
Cabinet probe alarm
Automatic
- Check P0
Pr2
Auxiliary probe alarm
Automatic
- Check probe integrity
- Check electrical connection
AL
Low temperature alarm
Automatic
Check A1
AH
High temperature alarm
Automatic
Check A4
id
Open door alarm
Automatic
Check i0 and i1
COH
High condenser temperature
warning
Automatic
Check C6
CSd
High condenser temperature
alarm
Manual
- Switch the device off and on
- Check C7
iA
Multi-purpose input alarm
Automatic
Check i0 and i1
dFd
Defrost timeout alarm
Manual
- Tap any key
- Check d2, d3, and d11
