Magnum Venus Plastech CFH-2000 - Manual (Page 18)

CFH -2000 Series Heater Manual
Rev. 01/2013 Page | 18
Operations:
To operate the CFH heater, just set the temperature control to mid-position or to the
desired position if the setting is known.
Heater is now ready.
To preheat the CFH-2000-AI (system with air interlock) press the preheat button and
hold until heater block feels warm to the touch. This insures resin is heated from start-
up to stop. If this system sets idle for a long period of time it may need to be preheated
again before use.
Using heat with polyester resin systems allows control of the spray pattern through
reduced viscosity while breaking up material particles, thereby giving better, more
desirable wetting characteristics. As it is highly accurate, material can be controlled
within plus or minus 3° F in continuous use.
If the spray pattern is too coarse and narrow, set heat higher, If too fine and thin, set
heat lower. Once resin in hose has been replaced by resin in heater, it will be possible
to determine if block heat has been set properly. The thermometer on outlet side will
display what temperature it is operating at. DO NOT EXCEED 135° F OUTLET
TEMPERATURE.
(Proper setting will vary with ambient room temperatures, flow rates and characteristics
of each resin or gel coat)
When highly promoted resins are used, it is advisable to pump cool resin through heater
after power has been removed from the heater. These resins could easily gel if left at
high temperature in block for an extended period. Anticipate your cut-off and you will be
able to use it all. Use preheat button again before starting.
When used on automatic heads, the heater should be connected to automatic gun
trigger circuit; if preheat transfer pump, connect to pump control.