Installation tips for coil heaters

• The inside diameter of a coil heater is 0.020" smaller than the nominal diameter of a nozzle. This is done intentionally to secure a positive grip at all times. During installation, a coil heater should be screwed to its proper position. Pushing forcefully, or slightly opening the coil to facilitate installation could permanently damage the heater.
• During installation, only the straight cold section, could be slightly bent. This should be done in a single attempt. The bending radius shouldn’t be less than 0.5". It is always recommended to contact our factory when modifications of form are required.
• The straight cold section can withstand temperatures of up to 1500°F. However, to protect the lead wires, the temperature of a section beyond the transition adapter should be maintained below 480°F.
• Usually the sensing tip of a thermocouple is located at the end of the last loop of a coil heater. Care should be taken to insure that the last loop is properly gripping the nozzle.