Technical information

UGH021/0301 VL Series Portable Chillers, 2 to 40 Tons
Page: 35
screen and clean or replace
as necessary.
9. Clean the valve body.
10. Reset the mesh screen into
the valve body.
11. If a new diaphragm
assembly was obtained,
continue with step 12. If
not, disassemble the
diaphragm assembly and
note component order
(figure 5.4E). Clean the
valve port, plate, collar and
O-ring. Once cleaned,
reassemble the diaphragm.
12. Set the reassembled
diaphragm assembly or the
new assembly back into the
valve body. The stem
should be facing out of the
valve body.
13. Inset the plunger with
spring first into the
enclosing tube of the top
bonnet (figure 5.4F).
Holding the plunger in the
enclosure tube, set the top
bonnet onto the valve
body and tighten.
14. Place the coil onto the top
bonnet and replace the
retaining screw.
15. Open the water supply to
circulate water to the
make-up system. Check the
solenoid valve for leakage.
Restart the unit as outlined
in section 3.
Figure 5.4F
Plunger
Spring
Top bonnet
Enclosure tube
Top bonnet
Figure 5.4C
Enclosure tube
Plunger
Diaphragm assembly
Figure 5.4D
O-Ring
Diaphragm assembly
Mesh screen
Figure 5.4E
O-Ring
Diaphragm and stem
Collar
Plate