5.1.1 Display
The following illustration is an example of the main screen with an active unit, highlighting the fields and
icon used:
1. Date and time.
2. Current unit status:
Unit OFF
Winter mode
Defrosting in progress
3. Info extract and exhaust air temperature also unit operating mode.
• HP ACTIVE — unit is active; heating mode (winter time).
• FIRE SMOKE — unit is off; fire/smoke fan active, full speed.
• SUMMER MODE — unit is off, fire/smoke fan active.
4. Compressor request and actual run.
5. Info about water temperatures and ambient temperature.
6. Indicates access to the user menu using the
UP
,
DOWN
and
ENTER
keys to confirm.
5.1.2 User menu
On the main screen, the
UP
and
DOWN
buttons can be used to scroll through the functions:
Info
On-Off
Set
ENTER
button used to select them. Password is not needed to access and edit these parameters.
6 Unit control
6.1 Before start-up
Important
• After connecting the unit to the main supply, the unit must be kept turned off for at least 12 hours
to heat the compressor and evaporate the refrigerant. Automatic heating will start once the main
switch and all circuit breakers are switched on.
• The compressor can be damaged if the unit is turned on in the User menu before the compressor
was heated for at least 12 hours.
When all external components are connected, wiring and ducting work is done, the unit can be activated.
To activate the unit, switch on the main switch and all circuit breakers. After some time the terminal pGD1
will start. It is important to wait at least 12 hours before the unit can be turned on from the User menu.
Operation and Maintenance Instructions
209531
11
Systemair AB
