Description
I
2-3
2
Description
How the TW-S and TW-P Series
Direct Injection Works
Direct injection models maintain the process temperature by electrically heating and/or
injecting cool water supplied to the Thermolator by a chiller, tower, or other water source.
Heater
To Process
From Process
Cooling Water In
Cooling Water Out
Cooling
Valve
Mixing
Tank
Pump
From Process RTD
Low Pressure Switch
From
Process
Pressure
Gauge
To
Process
Pressure
Gauge
Relief
Valve
Bypass/
De-aeration
(or Optional
2nd Heater)
To Process RTD
1
The temperature of the process fluid is
measured as it leaves the unit’s primary
heater tank. The fluid then flows through
the “To Process” line A to the mold or
process. The fluid returns to the unit
through the “From Process” line B for
reheating or cooling.
2
The temperature of the process fluid is
measured as it flows into the mixing tank
through the “From Process” line B.
3
If the “To Process” temperature is above
the setpoint value, the cooling valve
opens. Cool water enters the bottom of
the mixing tank via the “Cooling In” line
C. Warm water flows out of the mixing
tank via the “Cooling Out” line D.
4
If the “To Process” temperature is below
the setpoint, the heater elements inside the
heater tank are energized.
5
The pump moves water from the mixing
tank into the heater tank. Pressure is mea-
sured before and after the pump with pres-
sure gauges E and F. Note: Depending on
your model, you may have an additional
heater in the mixing tank.
D
A
B
C
E
E
F
F
TW-S Direct Injection
Summary of Contents for Thermolator TW-P
Page 6: ...iv I Table of Contents ...
Page 12: ...1 6 I Introduction ...
Page 36: ...3 14 I ...
Page 58: ...4 22 I Operation ...
Page 72: ...5 14 I Maintenance ...
Page 128: ...E 4 I Appendix ...
Page 134: ...G 4 I Appendix ...
Page 136: ...H 2 I Appendix ...