EVO controller
Manual
www.jakkagroup.com
6
Te (exter.)
Tr (return)
Tx (expelled)
Ti (input)
Tw(water)
Wat.nofrost
It is on if post-heating is set through water coil and indicates whether the anti-frost
mode is active. The anti-frost function for the water coil starts when the temperature
detected by the Tw probe drops below 3°C and then goes off when the temperatu-re
returns above 3°C. When a temperature lower than 3° C is detected, the control valve
(hot water) is fully opened in order to prevent ice formation in the elements. If this
temperature remains and Tw drops below 1°C, also the fans will be stopped and an alarm
will be notified (see ALARMS paragraph).
STATUS MENU: OPERATING STATUS
If the remote control panel is used to run several units (master-slave mode), a screen will be displayed in the menu with the list of
available machines (max 4):
Selection of units to be monitored,
master/slave configuration
Display of the Status menu with fan speed
In order to display the status of one unit, you must select this unit (move by means of the arrow keys and confirm your selection by
pressing OK).
If the control is configured to run one unit, when this menu is accessed, the status of this unit can be seen right away and the values of
the characterizing parameters are displayed; all parameters can be scrolled by using the up and down arrow keys. Pressure and flow
parameters are referred to machines with cop/cav kit:
Anti-frost
Anti-frost function status (ON-OFF). The anti-frost function starts automatically when the
temperature detected by the Tx probe drops below 1°C and then goes off when the
temperature rises above 3°C. The purpose is to avoid ice formation in the heat
exchanger. It can be managed by unbalancing fans(defaul-t),from a resistance, or by
modulating by-pass.
Temperature of external air in °C
Temperature of return air in °C
Temperature of expelled air in °C
Temperature of input air in °C
It is on if water coil post-heating is available: it shows the tempe-rature of the water coil in °C.
