Penn | TC3B23 | Installation Guide Rev. C | Part No. 24-7664-03574 | Page 1 of 2 | 19 January 2021
TC3B23
Basic Defrost Controller Installation Guide
Basic controller for refrigerated cabinets, with energy-saving strategies
- Controller for low temperature units
- Power supply for TC3B23N5x: 115 VAC
- Power supply for TC3B23N7x: 230 VAC
- Cabinet probe and auxiliary probe with a negative temperature coefficient (NTC)
- Door switch or multi-purpose input
- Cooling or heating operation
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.
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 TC3B23N5x: 115 VAC.
- Power supply for TC3B23N7x: 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.
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.
Temperature unit of measurement
2 = Compressor stopped
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.
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.
Compressor on
Compressor off
- Compressor protection active
- Setpoint setting active
Defrost or pre-dripping
-
- Defrost delay active
Evaporator fan on
Evaporator fan off
Evaporator fan stop active
- If device on, energy
saving active
- If device off, low
-
-
°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
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 (default), the defrost activates if the evaporator temperature is lower than the d2
threshold.
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 VALUE DESCRIPTION
CH View compressor functioning hours in hundreds
rCH Delete compressor functioning hours
Command to delete compressor functioning hours
Pb1 Cabinet temperature
Pb2 Auxiliary temperature
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
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
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.
Restores the default factory settings
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.
Interrupt the power supply to the device.
9.
Tap the SET key 2 s before step 6. to exit the procedure
P2
Temperature unit of measurement 0 = °C 1 = °F
P4
1
Auxiliary probe function
0 = Disabled
1 = Evaporator probe (defrost
+ fan)
2 = Evaporator probe (fan)
P5
0
Value displayed
0 = Cabinet temperature
1 = Setpoint
2 = Auxiliary temperature
Setpoint offset in energy saving
Cooling or heating operation
r12
1
Position of the r0 differential
0 = Asymmetric
C0
0
Compressor on delay after power-on 0 min to 240 min
Compressor off minimum time
Compressor on minimum time
C4
0
Compressor off time during cabinet
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
0°F/°C to 199°F/°C
Threshold for high condenser
temperature alarm
C8 1 High condenser temperature alarm
0 min to 15 min
d0
8
Automatic defrost interval
0 h to 99 h
0 = Only manual
If d8 = 3, maximum interval
d1
0
Defrost type
0 = Electric
1 = Hot gas
Threshold for defrost end
d3
30
Defrost duration
0 min to 99 min
If P3 = 1, maximum duration
Enable defrost at power-on
Defrost delay after power-on
d6
1
Value displayed during defrost
0 = Cabinet temperature
1 = Display locked
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
Enable defrost timeout alarm
Compressor on consecutive time for
hot gas defrost
d18
40
Adaptive defrost interval
0 min to 999 min
If compressor on and
evaporator temperature < d22
Threshold for adaptive defrost,
relative to optimal evaporation
Optimal evaporation
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
temperature + d22
A1
-20
Threshold for low temperature alarm
(relative to setpoint)
0°F/°C to 99°F/°C
SP - A1
Threshold for high temperature
alarm (relative to setpoint)
SP + A4
A6
12
High temperature alarm delay after
0 min to 99 min x 10
A7
15
High and low temperature alarms
0 min to 240 min
High temperature alarm delay after
defrost
A9
15
High temperature alarm delay after
0 min to 240 min
High and low temperature alarms
reset differential
F0
3
Evaporator fan mode during normal
operation
0 = Off 1 = On
2 = On if compressor on
3 = Thermoregulated (with
F1)
4 = Thermoregulated (with
Threshold for evaporator fan
operation
Differential = 2°F/1°C
F2
0
Evaporator fan mode during defrost
0 = Off 1 = On
Evaporator fan off maximum time
F4
30
Evaporator fan off time during
0 s to 240 s x 10
F5
Evaporator fan on time during
energy saving
0 s to 240 s x 10
i0
1
Door switch or multi-purpose input
function
0 = Disabled
1 = Compressor + evaporator
fan off
2 = Evaporator fan off
3 = Energy saving
4 = iA alarm
5 = iA alarm + compressor off
i1
0
Door switch or multi-purpose input
0 = With contact closed
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
i3
15
Regulation inhibition maximum time
-1 min to 120 min