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| HOW TO PROPERLY INSTALL SQUARE COIL HEATERS
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- Please tell us the outside diameter of the nozzle when ordering to insure a precise fit.
- For installation never open the ID of the coil heater to slide on the part. Opening the diameter
could lead to improper fit which reduces the surface contact and drastically reduces the life of
the heater.
- Heater should be screwed onto the nozzle - Never Pushed.
- When installing the heater the connection head or transition section should not be used as a
handle.
- The coil section can only be formed once. Please do not try to change the diameter after being
coiled.
- Transition zone (cold section) should only be bent once - if needed.
- Minimum bending radius is .500 inch. The use of a shaft is recommended when forming to
insure this.
- No bends should be placed within .500 inch of any bend.
- The connection head and leads are heat resistant to a maximum of 280°C. Additional protection
is available if needed.
- Sharp tools should never be used when forming or installing the heater.
- For units controlled by the built in thermocouple special care is needed during installation to
insure that the last coil is in contact with the nozzle. Improper contact will result in material
burning or severe overheating.
- As the heater may be twisted by coiling we recommend that flat and square type coil heaters be
coiled by National Plastic Heater.
- Please insure that no liquids or gases can enter the connection area of the heater unless a
special connection has been installed, as this may cause a short circuit.
- Protect the leads from chaffing during installation and operation as this may cause a short
circuit.
- Be sure to check the controller to ensure that it can handle the load and thermocouple, installed
in the heater.
- Please take care that all sensors and wiring is done correctly before first power up, as units heat
very quickly and can fail if allowed to operate uncontrolled.
- We recommend the use of soft start or rank soak controllers so that the heaters can dry before
reaching 200°F.
- Ground the tool before operating.
- Please enforce security procedures for the handling of electrical products and ensure that all
operators are aware of the heaters being an electrical product.
- Please note that the heaters can get very HOT during use - Do Not Touch.
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phone: 905.859.8225 fax: 905.859.4691
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toll free: 1.877.674.9744
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  sales@nphheaters.com
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| © National Plastic Heater Sensor & Control Co. 2000
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