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Full Gauge Faston MT-444e User Manual

Full Gauge Faston MT-444e
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[,f42]
[,f43]
[,f44]
[,F45]
[,F46]
Allows a defrost to start when the controller is powered. For example, when the power
supply returns (in the case of a power shortage).
Time required for dripping, i.e. to drain the last drops of the evaporator. During this period,
all outputs remain switched off. If you do not want this stage, adjust this time to [no,,].
The fan operation settings in normal and power-saving mode are:
[Auto] Automatic: The fan will be permanently switched on while the compressor is
activated. When the compressor is off, the fan will cycle according to the time set in
[,F47] and [,F48].
[Cont] Continuous: The fan will be constantly activated.
[Dept] Dependent: The fan will be activated together with the compressor.
[no,,]
999
min.
15
[Off,]
[On,,]
-
[Off,]
[no,,]
999
min.
1
[Auto]
[Dept]
-
[Dept]
Locked temperature indication during defrost
Defrost when powering the controller
Draining time
Fan operation mode: Normal Mode
Fan operation mode: Power-Saving Mode
This function is intended to prevent an increase in room temperature, due to the defrosting
process being displayed. During the defrosting process, the last measured temperature in
the refrigeration cycle will be frozen on the display. The indication will be unfrozen when the
temperature before defrost is reached or when the time set using this function is exceeded,
after the start of the next refrigeration cycle (whichever comes first). If set to the value
[,,,0], the temperature display will only be frozen at the defrost stage. This function can
be disabled if set to [no,,].
[,f56]
[Min,]Time in minutes
[Hour]Time in hours
[Min,] [Hour]
-
[Min,]
[,F48]
[,F49]
[,F50]
[,F51]
[,F52]
[,f54]
[,f55]
This is the amount of time the fan will remain OFF if[,F45]and[,F46] are configured as
automatic, while the compressor is off.
The fan can be set to remain activated or deactivated during the period when the door is
kept open.
The purpose of this function is to stop the evaporator fan until the room temperature
approaches that listed in the project, thus preventing a high temperature and suction
pressure which can damage the compressor. If the evaporator temperature surpasses that
of the set value, the fan is turned off, turning back on with a set hysteresis of 2ºC/4ºF. It is a
valuable resource when, for example, cooling equipment has been inactive for a few days
or when freezer rooms or refrigerated counters are refilled with stock.
After drainage, the fan's delay cycle is enabled. The compressor is immediately turned on
because the evaporator temperature is high, but the fan is only enabled after the evaporator
temperature decrease to the set programmed value. This process is required to remove
residual heat (caused by the defrosting process) in the evaporator, preventing room
temperature to rise.
For safety, in case the evaporator temperature does not reach the value in [,F51] or the
sensor S2 is disconnected, fan reactivation will occur after the function's set time.
If the door is kept open for a longer period than set with this function, an instant defrost will
take place, provided that the evaporator temperature (sensor S2) is lower than[,f32],
[,f33], [,f34] and the room temperature (sensor S1) is lower than
[,f35],[,f36],[,f37].
For safety, if the time that the door is kept open is greater than that set with this function,
both the compressor and the fan will be turned off.
1
999
min.
999
[Off,] [On,,]
-
[Off,]
-50 (-58) 75.0 (167) ºC (°F) 75.0 (167)
-50 (-58) 75.0 (167) ºC (°F) 2.0 (36)
[no,,]
999
min.
1
[no,,]
999
min.
30
[no,,]
999
min.
5
Fan OFF Time if [,F45]and[,F46]are in
automatic mode ([Auto])
Fan operation when opening the door
Fan deactivation by high temperature in evaporator
Evaporator temperature for fan reactivation after
draining
Maximum fan reactivation time after draining (fan-
delay)
Door open time until instant defrost begins
Door open time until compressor and fan are turned
OFF
Time unit of functions [,f57], [,f58] and
[,f60]
[,F47]
This is the amount of time the fan will remain ON if [,F45]and[,F46] are configured as
automatic, while the compressor is off.
1
999
min.
1
Fan ON Time if [,F45]and[,F46] are in automatic
mode ([Auto])
[,f35]
[,f36]
[,f37]
[,f38]
[,f39]
[,f40]
[,f41]
.
If the room temperature (sensor S1) reaches the set value, the defrosting process will end,
avoiding an eventual unwanted rising of product temperature.
If the controller is configured to carry out the defrost based on temperature, this time works
as a safeguard in situations where the evaporator temperature (sensor S2) does not reach
the programmed values in [,f27],[,f28],[,f29]. This function determines the
maximum time that the controller will wait for without carrying out the defrost.
This function is used to set the maximum time for a defrost. If, within such period, defrosting
is not terminated by temperature, a dot will start blinking on the bottom-right corner of the
display (it needs to be enabled in[,f72]), indicating that the defrosting process has been
terminated by the time limit rather than by temperature. This may happen if the temperature
set is too high, the time limit is too short, or the sensor S2 is disconnected or not connected
to the evaporator.
-50 (-58) 75.0 (167) ºC (°F) 20.0 (68)
1
999
H
12
1
999
min.
30
Room temperature to end the defrost (r1)
Room temperature to end the defrost (r2)
Room temperature to end the defrost (r3)
Maximum time without defrosts if [,f23] =
[,,,1]
Maximum defrost time (for safety) (r1)
Maximum defrost time (for safety) (r2)
Maximum defrost time (for safety) (r3)
[,f30]
[,f31]
[,f32]
[,f33]
[,f34]
When the evaporator temperature (sensor S2) drops and reaches the value set
in[,f27],[,f28],[,f29], the countdown to start the pre-defrost begins. During this
stage, if the temperature remains low, the pre-defrost starts. Otherwise, if this temperature
rises above the set value, the system returns to the refrigeration stage.
When starting the defrosting process, the controller will only activate the fan to take
advantage of the gas' residual energy.
If the temperature on the evaporator (sensor S2) reaches the set value, the defrosting
process will end as usual, i.e. by temperature. Thus, it optimizes the defrosting process.
-50 (-58) 75.0 (167) ºC (°F) -5.0 (23)
[no,,]
999
min.
10
[no,,]
999
min.
[no,,]
-50 (-58) 75.0 (167) ºC (°F) 40.0 (104)
Confirmation time of low temperature (sensor S2) to
start the pre-defrost if[,f23] = [,,,1]
Pre-defrost Time (gas collecting)
Evap. temp. (sensor S2) to finalize the defrost (r1)
Evap. temp. (sensor S2) to finalize the defrost (r2)
Evap. temp. (sensor S2) to finalize the defrost (r3)
[,f27]
[,f28]
[,f29]
When the evaporator temperature (sensor S2) reaches the value configured by this
function, the controller will initiate the countdown to defrost.
Evap. temp. to start defrost if [,f23] = [,,,1] (r1)
Evap. temp. to start defrost if [,f23] = [,,,1] (r2)
Evap. temp. to start defrost if [,f23] = [,,,1] (r3)
[,f53]
Digital input operating mode (Door Sensor)
[no,,] - Digital input disabled;
[,,,1] - Normally open contact (NO);
[,,,2] - Normally closed contact (NC);
[no,,]
2
-
1
DESCRIPTION
FUN
MIN MAX
UNIT.
DEFAULT
CELSIUS (FAHRENHEIT)
FUNCTION

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Full Gauge Faston MT-444e Specifications

General IconGeneral
BrandFull Gauge
ModelFaston MT-444e
CategoryController
LanguageEnglish

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