CCI Thermal Technologies SD - Transit Car Floor Strip Heater - Manuel

CCI Thermal Technologies Inc. 1 Hunter Valley Road, Orillia, ON L3V 6H2 Tel. (705) 325-3473 Fax (705) 325-2106
www.ccithermal.com
MI161 REV. 7
INSTALLATION AND MAINTENANCE INSTRUCTIONS
STRIP HEATERS - TYPES SS, SD & FS
1.0 INSTALLATION
1.1 Strip heaters are designed to be mounted to surfaces to be heated such as platens, dies and sealing
heads or in air streams or batch ovens for air heating.
1.2
Strip heaters are available with or without fins and in different sheath materials and watt densities.
Check with the factory to be sure the selected heater is suitable for the application.
1.3
Strip heaters will expand when heated. Be sure the mounting method does not restrict this expansion.
Heaters are supplied with elongated mounting holes to allow for expansion. SA1044 clamps are available to
aid in mounting to broad surfaces.
1.4
Strip heaters are not moisture resistant or sealed. Care should be taken to protect heaters from con-
taminants.
1.5
SA1014 and SA1024 bushings are available to aid in mounting. These bushings MUST be used if
voltage to ground exceeds 277 volts.
1.6
Strip heaters are capable of reaching very high surface temperatures, select connection wires suitable
for the application.
2.0 WIRING AND CONTROL
2.1 Heaters must be wired by qualified personnel to electrical code requirements.
2.2 Check supply voltage for compliance with heater nameplate voltage.
2.3 Ensure that suitable wire and connectors are used. Good tight low resistance connections are
essential for good heater life.
2.4
All heating systems should include suitable thermostatic control and safety limits. Check code
requirements and the factory for available devices.
2.5
SA1054 terminal box is available to aid in protecting live electrical terminals.
2.6 FIELD ELECTRICAL CONNECTIONS
2.6.1 The bottom nuts of the electrical connections are factory torqued to a maximum of 10 in.-lbs.
2.6.2 When making field electrical connections ensure that the terminal stud is not allowed to rotate.
2.6.3 Failure to restrain the bottom nut to prevent the terminal stud from rotating when tightening the top nut,
may damage the mica washer, the terminal stud to resistance coil connection or the insulating material around
the coil to stud connection.
2.6.4
Recommended torque for tigntening the top nut is 15 in.-lbs. minimum and 20 to 25 in.-lbs. maximum.
2.6.5 If it is necessary to tighten the top nut without restraining the bottom nut, it is suggested that a torque
of 10 in.-lbs. not be exceeded.
3.0 START-UP INSPECTION
3.1 Check that all terminal connections are tight.
3.2 Heaters stored for prolonged periods may absorb moisture. Using a megger (insulation resistance
tester) check the value of the insulation to ground for each circuit. Initial readings of over 500,000 ohms to
ground are normally acceptable. Should lower readings be observed, check factory for instructions.
4.0 MAINTENANCE
4.1 DISCONNECT POWER BEFORE SERVICING.
4.2 Periodically check the condition of wiring especially at terminal junctions and check all electrical
connections for tightness.