Owner's manual

8.0 OVERHEAT PROTECTION
8.1 The heateris equipped one (1) high limit thermocouple per
heating bankto sense theheating element sheathtemperature.
EachhighlimitthermocouplemustbewiredtoaseparateCertied,
manual-resethighlimitcontrollerinthecontrolpanel.Thesetpoint
ofthecontroller(s)mustnotexceedthevaluesgiveninTable2.
8.2Intheeventoffanfailure,excessivedustbuildup,orrestricted
airow,theheatertemperaturemayrise,causingthelimitcontrols
toopenandbreakthepowersupplytotheheater.
CYCLING OF THE HEATER ON THE HIGH LIMITS
SHOULD NOT BE PERMITTED. Should this occur,
the system should be inspected to determine the
cause of the cycling, and the condition must be
corrected before regular operation is resumed.
9.0 MAINTENANCE
DISCONNECT ALL POWER TO THE EQUIPMENT
PRIOR TO SERVICING.
9.1 Periodically inspect the heater installation to ensure that all
connections,tting,plugs,screws,covers,etc.aretightandfreeof
corrosion.
MI289REV.2.01Page4of4
CCIThermalTechnologiesInc.2721PlymouthDrive,Oakville,ONL6H5R5Tel.(905)829-4422Fax(905)829-4430
www.ccithermal.com
9.2 Checkthesurfaceoftheductsectionandterminalboxesfor
dustanddebris,especiallyafterseasonalshutdowns.Cleanwith
ablastofairorvacuum.
9.3Checkthesurfaceofthennedelementsfordustanddebris.
Cleanwithablastofair.
9.4 Ensurethatallfusesareinproperworkingorder.
9.5Maintainthepressuredifferentialswitchinaccordancewiththe
manufacturer’sinstructions.
9.6 Field repair of the heater should not be undertaken. In the
eventthattheheatermustberepaired,contactthefactory.
10.0 DRAWINGS AND LITERATURE
10.1 LITERATURE
Thefollowingmanufacturer’sliteraturehasbeenincludedwiththis
manual:
a)  Explosion-ProofPressureDifferentialSwitch
11.0 FIELD SERVICABILITY
The XDF explosion-proof duct heater is not eld-serviceable. If
yourheaterrequiresservicing,pleaseconsultthefactory.