VSC OPERATION AND MAINTENANCE INSTRUCTIONS 4 118 0324 2 IOM

24
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
Bypass: On
Stop deicing: On
Acvaon temp: 0,0° C
Stop temp SAF: -8,0° C
This sections is for units with counter-
ow and crossow exchangers.
Exchanger deicing allowed with bypass,
On/O󰀨.
Exchanger deicing allowed with stop of the
supply air fan (SAF), On/O󰀨
Outdoor temperature limit to allow deicing
function.
Outdoor temperature limit for forced stop
deicing, interlock of bypass deicing.
Setp Press dev: 50%
Stop hyst: 60%
Actual setp: xxx Pa
Manual calib: O
This sections is for units with counter-
ow and crossow exchangers.
Set point in percent of the pressure deviati-
on to start deicing.
Reduction of the pressure deviation in
percent to cancel deicing.
Actual setpoint for deicing presented.
Note! The value can vary, depending on
airow.
Manual calibration ON/O󰀨 to make a new
calibration manually.
Note! Recommended to perform this
operation with a dry exchanger and normal
airow.
→ Cooling recovery
Cooling recovery
Yes
Cooling limit: 2.0°C
Set the cooling recovery to Yes or No.
Set the cooling limit (the di󰀨erence in tem-
perature between extract air and outdoor
air that activates the cooling recovery).
→
External setpoint
External setpoint
Not acve
Min setp.: 12.0°C
Max setp.: 30.0°C
An external setpoint device can be connec-
ted. The setpoint device must follow the
PT1000 resistance curve. The setting
range can be restricted.
→
Alarm sengs
Alarm no(1–100): 1
Run Error Supply Air