Purge Valve Hookups - Conair Thermolator TW-1 User Manual

A purge valve is available as an option on Direct Injection and
Closed Circuit units only. This valve quickly evacuates fluid
from the process circuit, allowing faster disconnection of the
temperature controller from molds and hoses. An optional
manual purge button controls this valve on models with TW
or TW-1 controls. There is a built-in purge button on the TW-
2 control panel.
If this option is ordered with the Thermolator, purge control
wiring and installation of the valve on the process line outlet
of the unit is completed at the factory. You still must connect
process and cooling water inlets and outlets, as well as a sup-
ply of non-lubricated compressed air.
1
Remove the shipping pipe plug from the
female connections on the back of the Thermolator.
2
Install an external ball valve on the cooling
water inlet of the Thermolator. This valve is required
when a purge valve is used.
3
Install pipe to the rear of the Thermolator.
1 /
Use male 1 -inch NPT piping for process connections
4
3 /
and male inch NPT piping for water connections. Pipe
4
and pipe threads must be clean and new. Clean threads
with solvent, removing all oil, grease and dirt. Allow the
threads to dry before proceeding.
4
Coat the pipe threads with thread sealant.
Follow the sealant manufacturer's directions.
5
Connect the male pipe to the appropriate
female connection on the back of the unit. Connect cool-
ing water lines as indicated on the previous page. Connect
process lines as indicated below. Start by hand until the
threads engage, then use a pipe wrench to tighten the con-
nection only enough to prevent
leaks. Do not over-tighten!
6
Connect the purge
valve to the compressed air
supply. The air pressure should
not exceed 100 psi.
UGH025-0504
To
From
process
process
Compressed air
fitting
Thermolator TW Series
P V
URGE ALVE
H
OOKUPS
I
NSTALLATION
3-5