Magnum Venus Plastech CFH-2000 - Manual (Page 16)

CFH -2000 Series Heater Manual
Rev. 01/2013 Page | 16
Introduction:
The MVP Clean Flow Heater (CFH) is designed to allow higher flow rates, give better
control over temperature change and boasts a new easy maintenance design.
The CFH-2000 Series Heater is heated with a single cartridge type heating element,
requiring single phase electrical service. Material temperature is indicated on the
thermometer on the outlet side of the heater.
The bulb and capillary thermostat has a fluid filled bulb. When temperature rises, the bulb
fluid expands via a capillary tube to an expandable diaphragm within the remote thermostat
case activating an electrical switch at the thermostat set point. Designed to maintain a
constant and stable temperature, these devices offer precise heating control. There is also
a thermal limiter in the circuit. This is a safety feature that breaks the circuit to the heating
element if heater block temperature exceeds a safe level. In addition, all heaters contain
fuses in the electrical enclosure for protection.
There are four models of the CFH-2000 in-line heater:
1500 Watts, 1PH, 110vac @ 13.60amp:
CFH-2110-B 110 volt, Basic Clean Flow Heater – In-Line Resin Heater
CFH-2110-AI 110 volt, Clean Flow Heater – In-Line Resin Heater – Air Interlock
1500 Watts, 1PH, 220vac @ 6.81amp:
CFH-2220-B 220 volt, Basic Clean Flow Heater – In-Line Resin Heater
CFH-2220-AI 220 volt, Clean Flow Heater – In-Line Resin Heater – Air Interlock
The CFH-2000-B Basic Clean Flow Heater is the base model of the CFH heater with a
single temperature adjustment knob which allows for simple operation. Just adjust the
temperature control to the desired level to maintain the desired temperature indicated on
the thermometer.
The CFH-2000-AI Clean Flow Heater – Air Interlock is unique in that it is an on demand
type heater and uses electrical power only when there is flow. The heater is controlled by
triggering the gun, the system regulator supplies pressure to the gun valve which in turn
activates the heater when the trigger is pulled. Once material is flowing, an air signal is
supplied to heater which engages the thermostat circuit.
When controlled with the air/electrical interlock heater switch, The CFH heaters require a
minimum of 15 psi air. The heat element is supplied with current from two separate air
circuits: the preheat circuit and gun trigger circuit. A preheat circuit is operated to manually
warm the heater block to desired operating temperature before start-up.
NOTE: Because of the variety of electrical codes in various parts of the world, MVP
does not supply connections to any of the heaters mentioned in this manual. The
electrical connection should be made by a qualified electrician per codes of local
jurisdiction.