Full Gauge Controls TC-900i power Operation Instructions

1. DESCRIPTION
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.
Product complies with UL Inc. (United States and Canada).
2. APPLICATION
• Counters
• Refrigerating balconies
3. TECHNICAL SPECIFICATIONS
- Power supply: TC-900Ri power: 90 - 264Vac ±10%( 50/60 Hz)
TC-900RiL power: 12/24 Vac/dc
- Control temperature: -50 to 75° C / -58 to 167°F
- Operating temperature: 0 to 50°C / 32 to 122°F
- Operating humidity: 10 to 90% RH (without condensation)
- Resolution: 0.1°C from -10 to 75°C and 1°C outside this range /1°F in all range
- Load current (outputs): COMP: 16(8)A/ 250Vac 1HP (compressor, solenoid valve or contactor)
DEFR: 8(3)A/ 250Vac 1/4HP
FANS: 5(3)A/ 250Vac 1/8HP (evaporator fans)
- Dimensions: 71 x 28 x 71mm
- Sensors:
S1: ambient sensor (black cable)
S2: evaporator sensor (gray cable)
4. CONFIGURATIONS
4.1 - Control temperature adjust (SETPOINT):
SET
- Press for 2 seconds until appears
temperature will appear.
- Use and to change the value and then press
4.2 - Parameters table
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
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)
TC-900Ri power
DIGITAL CONTROLLER FOR
REFRIGERATION AND DEFROST
Ver.01
(defrost resistance or hot gas)
, and release it after that. The adjusted operation
to record it.
SET
Description
4.3 - Parameters description
F01 - Access code (123)
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.
F02 - Control differential (hysteresis)
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)
F03 - Offset indication for ambient sensor
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.
F04 - Minimum setpoint allowed to the end user
F05 - Maximum setpoint allowed to the end user
Electronic limits whose purpose is to prevent that too high or too low setpoint temperatures are
regulated.
F06 - Delay when the instrument is powered on
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).
F07 - Act point of high ambient temperature alert
If the ambient temperature (sensor S1) reaches this point during refrigeration, this will be signaled
visually through the indication blinking on display.
F08 - Refrigeration time (interval between defrosts)
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).
F09 - Compressor delay after on (on-off)
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.
F10 - Compressor delay after off (off-on)
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.
F11 - Compressor status with detached ambient sensor (S1)
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.
F12 - Defrost when the instrument is powered 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)
F13 - Evaporator temperature (S2) for end defrost
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.
CELSIUS
Max Standar Unit
Min
- - - -
0.1 20.0 1.5 º C
-20.0 20.0 0 º C
75.0
-50.0 -50.0 º C
-50.0 75.0 75.0 º C
30 0
0 min.
-50.0 75.0 75.0 º C
999 240
1 min.
0 999 0 sec.
999 0
0 sec.
0 - off 1 - on 1 - on -
1 - yes 0 -no
0 - no -
75.0 40.0 º C
-50.0
90 45 0=disable
0=disable min.
1 - yes 0
0 - no -
0
0 - electric 1 - hot gas - 0 - electric
0 - no 1 - yes 0 - no
-
0 30 10
min.
-50 75.0 0 º C
0 30 1
min.
0 - no 1 - yes 1 - yes
-
-50 75.0 75.0
º C
0 9 0
-
FAHRENHEIT
Standar Unit
Min Max
- - - -
°F
1 36 3
-36 36 0 °F
°F
-58 167 -58
-58 167 167 °F
30 0 min.
0
-58 167 167 °F
1 999 240 min.
0 999 0 sec.
0 999 0 sec.
-
0 - off 1 - on 1 - on
0 - no 1 - yes 0 -no -
°F
-58 167 104
90 45 min.
-
0 - no 1 - yes 0
1 - hot gas 0 -
0 - no 1 - yes 0 - no
-
0 30 10
min.
-58 167 0 °F
0 30 1
min.
0 - no 1 - yes 1 - yes
-
-58 167 167
°F
0 9 0
-
UL-Underwriters Laboratories