DIGITAL CONTROLLER FOR FREEZING SYSTEMS
WITH DEFROST SCHEDULING AND INTERNAL
DATALOGGER
4. INDICATIONS AND KEYS
6. OPERATIONS
6.1 Quick Access Menu Map
To access or navigate the quick access menu using the
;
(short press) key while the controller is
displaying the temperature. For every touch, the next function in the list is displayed. To confirm, use the
/
(short press) key.
1. DESCRIPTION
Designed to better safeguard frozen products.
TC-900
e
Log
is equipped with 3 relays (Comp,
Defrost & Fan), 2 temperature sensors, 2 digital inputs, real-time clock, data logger and light intensity
sensor. A third temperature sensor can be connected to one of it’s digital input for either defrost
management of second evaporator; condenser temperature control or to activate economic set point.
Other salient features include hour-meter to clock the working hours of compressor for preventive
maintenance, internal buzzer, IP65 frontal, min-max temperature record, temperature sensor response
time control, fast freezing mode, tamper-proof function, control functions shutdown and RS485 serial
communication port for Sitrad real-time monitoring and management.
Product conforming to UL Inc. (United States and Canada) and NSF (United States).
2. APPLICATION
• Walk-in freezers
• Display freezers
• Upright freezers
evolution
V
er
.03
TC-900
e
Log
5. INSTALLATION - ASSEMBLING AND ELECTRICAL
CONNECTIONS
Control
functions
shutdown
Functions
lockdown
Serial
programming
Protection
level
IP 65
FRONT
Fast
Freezing
Datalogger
LOG
Supervisory
system
3. TECHNICAL SPECIFICATIONS
Power supply
Control temperature
Operating humidity
Dimensions (mm)
76 x 34 x 77 mm (WxHxD)
Dimensions of the clipping for fixing
of the instrument
71 ± 0,5 x 29 ± 0,5 mm (see item 5)
TC-900E Log:
115 or 230Vac ±10% (50/60Hz)
TC-900EL Log:
12 or 24Vac/dc +10%
-50°C to 105°C / -58°F to 221°F
Operating temperature
0 to 50°C / 32 to 122°F
Load current (outputs)
COMP:
12(8)A / 240Vac 1HP
DEFR:
10A / 240Vac 2400W
FANS:
5(3)A / 240Vac
10 to 85 %RH (without condensation)
Defrost indication LED
Temperature unit indication LED
Control functions shutdown indication LED
TC-900
e
Log
Upper key
Lower key
Set key
Quick Access
Menu Key
Functions lockdown indication LED
Compressor output
indication LED
Fan indication LED
6.2 Quick access keys map
When the controller is on temperature display, the following keys serve as a shortcut for the following
functions:
/
<
<
<
<
Hold down for 2 seconds: setpoint adjustment.
Short touch: displays the current process.
Short touch: displays the maximum and minimum measurements recorded.
Hold down for 10 seconds: manual datalogger activation.
<
Hold down for 2 seconds: inhibits the audible alarm.
<
Hold down for 2 seconds: clears history when records are displayed.
;
Short touch: enter the quick access menu.
and
<
Hold down for 4 seconds: carries out manual defrost.
/
Short touch: the current day, month, year, day of the week, hour, and
minute will be shown in sequence on the display.
<
<
Short touch: Go to menu selection.
and
71
mm
± 0,5
29
mm
± 0,5
Panel (Front View)
Panel
(Side View)
Dimension of the clipping
for fixing of the
instrument in panel
ATTENTION
FOR INSTALLATIONS WHERE A SEALING IS REQUIRED TO AVOID LIQUID CONTACT, THE CUT FOR THE CONTROLLER MUST BE OF
70,5X29mm MAXIMUM. THE SIDE LOCKS MUST BE FIXED SO IT PRESSES THE RUBBER SEALING AVOIDING
INFILTRATION BETWEEN THE CUT AND THE CONTROLLER.
IMPORTANT
SCREWDRIVER SLOT 3/32''(2.4mm) FOR ADJUSTMENTS IN THE SIGNAL TERMINALS;
SCREWDRIVER PHILLIPS #1 FOR ADJUSTMENTS IN THE POWER TERMINALS;
THE USE OF APPROPRIATE TOOLS IS ESSENTIAL TO AVOID DAMAGE IN THE CONNECTION AT INSTRUMENT TERMINALS:
<
Hold down for 2 seconds: resets the counter when the hour meter is being
displayed.
Maximum consumption of device
1.5 VA
Luminosity
sensor
Hourmeter
TC-900
e
Log
TC-900
e
Log
Connection 115 Vac
1
5 6 7 8
2 3 4
9
10 11 12 13 14 15 16 17
S1
D2
S2
C
O
M
P
D
E
FR
115 Vac
FA
N
S /
D
E
FR 2
A
B
SITRAD
D1/S3
1
5 6 7 8
2 3 4
9
10 11 12 13 14 15 16 17
230 Vac
C
O
M
P
D
E
FR
FA
N
S /
D
E
FR 2
Connection 230 Vac
D2
A
B
SITRAD
S1
S2
D1/S3
The
sensor S1
(black)
must be in the ambient.
The
sensor S2
(gray)
must be placed in the evaporator
through metallic cramp.
LEGEND:
To the terminal of
the connecting block
Connection 12 Vac/dc
1
5 6 7 8
2 3 4
9
10 11 12 13 14 15 16 17
C
O
M
P
D
E
FR
FA
N
S /
D
E
FR 2
12 Vac/dc
D2
A
B
SITRAD
Loads supply
S1
S2
D1/S3
1
5
Connection 24 Vac/dc
6 7 8
2 3 4
9
10 11 12 13 14 15 16 17
C
O
M
P
D
E
FR
FA
N
S /
D
E
FR 2
24 Vac/dc
D2
A
B
SITRAD
S1
S2
D1/S3
Loads supply
E251415
COMPONENT
Have this manual in the palm of
your hand by
FG Finder
application.
TC900ELOGV03-01T
-16578
Pressed for 5 seconds: turn on/turn off the control functions.
;
FAST FREEZING (ON/OFF)
;
TC-900
e
Log
;
ECONOMIC SETPOINT (ON/OFF)
TC-900
e
Log
;
DEFROST (ON/OFF)
TC-900
e
Log
;
FUNCTIONS LOCKDOWN
TC-900
e
Log
;
CONTROL FUNCTIONS
SHUTDOWN (ON/OFF)
TC-900
e
Log
NORMAL SETPOINT
;
TC-900
e
Log
ERASE MIN. AND MAX.
VALUES
;
TC-900
e
Log
EXIT FUNCTION
;
TC-900
e
Log
ECONOMIC SETPOINT
;
TC-900
e
Log
FUNCTION SELECTION
;
TC-900
e
Log
MIN. AND MAX.
TEMPERATURE RECORD
;
TC-900
e
Log
DISPLAY TIME AND DATE
TC-900
e
Log
;
ON/OFF DATA LOGGER
(MANUAL MODE)
TC-900
e
Log
;
;
TC-900
e
Log
DISPLAY HOURMETER
RESET HIGH AND LOW
PRESSURE ALARMS
;
TC-900
e
Log
