EVO controller
Manual
www.jakkagroup.com
14
Tr (return)
ko
The return air temperature sensor works properly
Problem with the return air temperature sensor:
check electrical connections of the temperature probe (see wiring diagram);
1)
2) if the problem is not solved, replace the temperature probe
3) if the problem is not solved, replace the electronic card.
ok
Tx (expelled)
ko
The exhaust air temperature sensor works properly
Problem with the expelled air temperature sensor:
1)
1) check electrical connections of the temperature probe (see wiring diagram
2) if the problem is not solved, replace the temperature probe
3) if the problem is not solved, replace the electronic card.
Ti (input)
ko
The input air temperature sensor works properly
Problem with the input air temperature sensor:
1) check electrical connections of the temperature probe (see wiring diagram);
2) if the problem is not solved, replace the temperature probe
3) if the problem is not solved, replace the electronic card.
Tw (water)
ko
Problem with the water-powered battery temperature sensor:
1) check electrical connections of the temperature probe (see wiring diagram);
2) if the problem is not solved, replace the temperature probe
3) if the problem is not solved, replace the electronic card.
Filters
ok
Clean filters
ko
Clogged filters: replace filters. If the filters alarm is based on the machine
operation hours, you must reset the Filter Hours parameter (Installer menu)
Fans
CO
2
VOC
RH sensor
Tw (water) low
ok
The temperature of the water from the battery is higher than a safety
threshold, there is no risk of water freezing in the battery
ok
ok
ok
It is present only if the air after-treatment control is equipped with a water
powered battery (Factory menu)
The water coil temperature sensor works properly
ko
Risk of liquid freezing in the water-powered battery
It is present only if the air after-treatment control is equipped with a water coil
(Factory menu)
It is present only if the fan status alarm is configured with differential
pressure switch, with tachometric signal of fans or with fan Digital Output
(Factory menu)
Fans OK
Possible failure of the fans
It is present only if the fan speed automatic control is configured with a
CO
2
o CO
2
-VOC sensor (Installer menu)
Probe OK
Possible failure of the probe or of the connector
It is present only if the fan speed automatic control is configured with a
relative humidity sensor (Installer menu)
Probe OK
Possible failure of the probe or of the connector
It is present only if the filter status alarm with differential pressure switch is
configured or is based on the machine operation hours (Factory menu)
ok
ko
ok
ko
ok
ko
