DIGITAL CONTROLLER FOR
REFRIGERATION AND DEFROST
TC-900Ri
power
Ver.01
4. CONFIGURATIONS
- Press
for 2 seconds until appears
, and release it after that. The adjusted operation
temperature will appear.
- Use
and
to change the value and then press
to record it.
4.1 - Control temperature adjust (SETPOINT):
SET
SET
TC900RIPWV02-1T
-1
1548
1. DESCRIPTION
3. TECHNICAL SPECIFICATIONS
TC-900Ri
power
is a control for low temperature ventilated units which automates defrosting
processes, providing great energy saving.
It has two sensors, one for environment temperature and other that, mounted to the evaporator,
commands the end defrost process and puts the fans back to work.
• Counters
• Refrigerating balconies
TC-900Ri power: 90 - 264Vac ±10%( 50/60 Hz)
TC-900RiL power: 12/24 Vac/dc
-50 to 75° C
0 to 50°C
10 to 90% RH (without condensation)
0.1°C from -10 to 75°C and 1°C outside this range /1°F in all range
COMP: 16(8)A/ 250Vac 1HP (compressor, solenoid valve or contactor)
DEFR:
(defrost resistance or hot gas)
FANS: 5(3)A/ 250Vac 1/8HP (evaporator fans)
71 x 28 x 71mm
S1: ambient sensor (black cable)
S2: evaporator sensor (gray cable)
2. APPLICATION
- Power supply:
- Control temperature:
- Operating temperature:
- Operating humidity:
- Resolution:
- Load current (outputs):
- Dimensions:
- Sensors:
Product complies with UL Inc. (United States and Canada).
/ -58 to 167°F
/ 32 to 122°F
8(3)A/ 250Vac 1/4HP
4.2 - Parameters table
Description
Fun
Access code:123 (one hundred and twenty-three)
Control differential (hysteresis)
Offset indication for ambient sensor
Minimum setpoint allowed to the end user
Maximum setpoint allowed to the end user
Delay when the instrument is powered on
Act point of high ambient temperature alert
Refrigeration time (interval between defrosts)
Compressor delay after on (on - off)
Compressor delay after off (off - on)
Compressor status with detached ambient sensor (S1)
Defrost when the instrument is powered on
Evaporator temperature (S2) for end defrost
Maximum duration of defrost (for security)
Fan turned on during defrost
Defrost type
Min
Max
Unit
Standar
CELSIUS
FAHRENHEIT
-
0.1
-20.0
-50.0
-50.0
0
-50.0
0 - off
0 - no
-50.0
0=disable
0 - no
0 - electric
1
0
0
-
1
-36
-58
-58
0
-58
1
0
0
-58
0 - off
0 - no
0=disable
0 - no
0 - electric
-
20.0
20.0
75.0
75.0
30
75.0
999
999
999
1 - on
1 - yes
75.0
90
1 - yes
1 - hot gas
-
36
36
167
167
30
167
999
999
999
167
90
1 - on
1 - yes
1 - yes
1 - hot gas
-
º C
º C
º C
º C
min.
º C
min.
sec.
sec.
-
-
º C
min.
-
-
-
1.5
0
-50.0
75.0
0
75.0
240
0
0
1 - on
0 -no
40.0
45
0
0
-
°F
°F
°F
°F
min.
°F
min.
°F
sec.
sec.
-
-
min.
-
-
-
3
0
-58
167
0
167
240
0
0
0 -no
104
45
0
0
1 - on
Min
Max
Unit
Standar
Locked temperature indication (S1) during defrost
Draining time (dripping of defrost water)
Evaporator temperature (S2) for fan return after draining
Maximum time of fan return after draining (fan-delay)
Fan on with compressor off (refrigeration)
Fan stopped for high temperature in the evaporator
Intensity of the digital filter applied to the sensor 1 (0-off)
0 - no
0
-50
0
0 - no
-50
0
1 - yes
30
75.0
30
1 - yes
75.0
9
-
min.
º C
min.
-
º C
-
0 - no
0
-58
0
0 - no
-58
0
1 - yes
30
167
30
1 - yes
167
9
-
min.
min.
-
-
°F
°F
0 - no
10
0
1
1 - yes
75.0
0
0 - no
10
0
1
1 - yes
167
0
4.3 - Parameters description
F01 - Access code (123)
F02 - Control differential (hysteresis)
F03 - Offset indication for ambient sensor
F04 - Minimum setpoint allowed to the end user
F05 - Maximum setpoint allowed to the end user
F10 - Compressor delay after off (off-on)
F11 - Compressor status with detached ambient sensor (S1)
F12 - Defrost when the instrument is powered on
F13 - Evaporator temperature (S2) for end defrost
To change the parameters it is necessary to use the access code.It is not necessary to use the access
code to visualize the adjusted parameters.
It is the difference of temperature (hysteresis) between to turn OFF and turn ON the refrigeration output.
Example: To control the temperature in 4.0°C with differential of 1.0°C. Soon, the refrigeration will be
turned off in 4.0°C and turned on again in 5.0°C (4.0 + 1.0)
It allows to compensate eventual shunting lines in the reading of ambient temperature (S1) proceeding
from the exchange of the sensor or cable length alteration.
Electronic limits whose purpose is to prevent that too high or too low setpoint temperatures are
regulated.
It is the minimum time that compressor will keep off, it means, space of time between the last stop and
the next drive. It serves to alliviate the discharge pressure and to increase the time of useful life of the
compressor.
If the ambient sensor (S1) will be damaged or outside the specified range, the compressor assumes the
configured status in this function.
Example: For counters of fruits, it is better to keep the compressor off. In counters of meat it is better to
keep the compressor on.
It makes possible the accomplishment of a defrost at the moment that controller is energized, for
example, in the return of electrical energy (in case of energy lack)
If the temperature in the evaporator (sensor S2) reaches the adjusted value, the end of defrost will be for
temperature. With this, the defrost process is optimized.
F06 - Delay when the instrument is powered on
F07 - Act point of high ambient temperature alert
F08 - Refrigeration time (interval between defrosts)
F09 - Compressor delay after on (on-off)
When the instrument is powered on, its control is kept disabled during a time, delaying the start of
process. During this time, it works only as temperature indicator. It serves to prevent demand of electric
energy peaks, in case of lack or return of the same and when exists a lot of equipment connected on the
same net. For this, just adjust different times for each equipment. This delay may be of compressor or
defrost (when exist defrost on turn on).
If the ambient temperature (sensor S1) reaches this point during refrigeration, this will be signaled
visually through the indication blinking on display.
It is the time which compressor will turn on and turn off only for ambient temperature and starts to be
counted when the fan is turned on , after fan-delay stage (fan return after draining).
It is the minimum time that compressor will keep on, it means, space of time between the last drive and
the next stop. It serves to prevent high voltage events in the electric network.
COMP
www.fullgauge.com
FANS
DEFR
TC-900Ri
power
UL-Underwriters Laboratories
