400895 Topvex FR Operation and Maintenance Instructions

Topvex FR800, FR1600, FR3800 Operation and Maintenance Instructions
Systemair Inc.
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5.3.8 Checking the Duct System
Dustandgreasesettlementsmaybuildupintheductsystemevenifltersarechangedregularly.Thiswill
reducetheefciencyoftheinstallation.Theductsshouldthereforebecleaned/changedwhennecessary.
Steel ducts can be cleaned by pulling a brush, soaked in hot soapy water through the duct via diffuser/
louvreopeningsorspecialinspectionhatchesintheductsystem(iftted).
5.3.9 Changing the Internal Battery in the Corrigo Controller
Whenthealarm“InternalBattery”isactivatedandthebatteryLEDlightsupred,thebatteryforbackupof
program memory and real-time clock has become too weak. The battery is replaced as described below.
A backup capacitor saves the memory and keeps the clock running for at least 10 minutes after the power
supply is removed. Therefore, if the battery replacement takes less than 10 minutes, there will be no need
to reload the program, and the clock will continue to run normally.
The replacement battery must be of the type CR2032.
Note:
ThisprocedurerequiresknowledgeofproperESDprotection;i.e.angroundedwristbandmustbeused!
Danger
• Make sure that the Main power supply to the unit is disconnected before performing any
maintenance or electrical work!
1
Remove the cover by pressing down the locking
torquesattheedgeofthecoverusingasmall
screwdriver, and at the same time pulling the
edges outwards.
2
Gripthebatteryrmlywithyourngersandliftit
upwards until it rises from its holder.
Pressthenewbatteryrmlydownintoplace.Note
that to preserve correct polarity, the battery can
onlybeinsertedthe“rightwayround”.