400895 Topvex FR Operation and Maintenance Instructions

Topvex FR800, FR1600, FR3800
Operation and Maintenance Instructions
Systemair Inc.
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5.4 Troubleshooting
Should problems occur, please check or correct the following before contacting your service representative.
Always check if there are any alarms active in the control panel. See section 4.3 to learn how to navigate
through the control panel menu. For more information on the alarm designations go to the Systemair
website(www.systemair.com/na/North-America/)anddownloadthecontrollerusermanual.
1. Fan(s) do not start
• Check if there are any alarm messages
• CheckiftheautomaticfuseAS1istripped(gure3,pos.8)
• Checkiffan(s)thermalcontactistrippedduetooverheating(showsas“Fanalarm”inthecontrol
panel).
• Checktherunstatusandthesettingincontrolpanel(schedules,auto/manualoperation,airowset
points, etc.)
2. Wheel motor does not start
• Check if there are any alarm messages
• CheckiftheautomaticfuseAS1istripped(gure3,pos.8)
• CheckifthefusesinthefuseholdersF1&F2areblown(gure3,pos.13)
• Check the run status and the setting in control panel (schedule, auto/manual operation, free cooling
active, etc.)
3. Reduced Airow
• Check if there are any alarm messages
• Checktherunstatusandthesettingincontrolpanel(schedules,auto/manualoperation,airowset
points, etc.)
• Check if outdoor/exhaust air damper (if used) are opened
• Checkifltersneedtobechanged
• Check if diffuser/louvers are opened
• Check if diffusers/louvers need cleaning
• Check if fans and/or exchanger need to be cleaned
• Check for obstruction at the air inlets/outlets
• Check ducts for visible damage and/or buildup of dust and debris
4. Cold supply air
• Check if there are any alarm messages
• Check the supply air temperature set point on the control panel
• Ifelectricre-heaterisequipped,checkiftheautomaticfuseAS2istripped(gure3,pos.9)
• Ifelectricre-heaterisequipped,checkiftheoverheatingthermostatistripped.Ifso,seesection2.2.6
• Ifhydronicre-heaterisequipped,checkifthevalve(s)/actuator(s)controllingthewateroware
functioning properly
• Checkifltersneedtobechanged
5. Noise/vibrations
• Check if the unit is completely leveled
• Check if fans and/or exchanger need to be cleaned
• Check if the screws holding the fans are tightened properly
5.4.1 Alarms
Thealarmbutton(pos.1,gure3)opensthealarmqueue.Whenpressingthisbuttonactiveand
non-acknowledgedalarmswillbedisplayedinthemenuwindow.Thealarm-LED(pos.2,gure4)willash
iftherearenon-acknowledgedalarmsandbeon(butnotashing)ifthealarmsarestillactivebuthave
beenacknowledged.Iftherearemultiplealarms,useUP/DOWNtomovebetweenthem.Analarmcanbe
acknowledgedorblockedbyusingOKandUP/DOWN.Toabortandgobacktostartmenupresscancel
and then press LEFT.
See Commissioning record for an overview of possible alarms.