VSC OPERATION AND MAINTENANCE INSTRUCTIONS 4 118 0324 2 IOM

21
Topvex FC
Compact Air Handling Unit
Operation and Maintenance Instructions
Document in original language
125918-EN_GB
2015-03-16 A001
Operation and Maintenance Instructions
Systemair AB
Main menu item Sub-menu item 1 Sub-menu item 2 Explanations
→
Control
funcon
Control funcon
Mode:
Cascade extract
ctrl
Set type of temperature control function
you want the unit to operate under. Choose
between:
Room control, Cascade extract ctrl, Outd comp
room, Outd comp extr air, Supply air control,
Outdoor comp. supply
Extract/supply air →(possible to switch
between the two depending on outdoor
temp.),
Room/supply air →(possible
to switch between the two depending on
outdoor temp.),
Fan control
→
Extra sequency
Y4
VSC SC:
Mode extra
sequence Y4
Acve w cool
recov
Only active for VSC SC:
Can be congured to one of the following
alternatives:
Acve, Acve with cooling recovery,
Acve with enthalpy control and Acve with
both cooling recovery and enthalpy control.
→
Extra sequency
Y5
Extra sequence Y5 can be congured to Ac-
ve or Not acve.
→
Pump control
Set parameters for pump control.
If, for any of the control circuits, no output
is congured for pump control these
settings will be ignored.
→ Free cooling
Free cool
acve: No
Outd. temp
acvaon
22°C
Set free cooling active to Yes or No.
Set the lower outdoor day temperature limit
for the activation of the free cooling func-
tion. The temperature of the previous day
needs to be over the set temperature in
order activate the free cooling function.