INSTALLATION
PIPING CONNECTIONS TO A TEMPERATURE CONTROL UNIT
MODEL AV-12
SER. NO. 3 7323
All piping connections are at the rear of the auxiliary vac.uum unit.
The PROCESS DELlVERY connection should be connected to the inlet to the
mold. The PROCESS RETURN connecti9n should be connected to the return
line from the mold. The UNIT DELIVERY connection should be connected to
the temperature control unit DELIVERY connection. The UNIT RETURN
connection should be connected to the temperature control unit RETURN
connection. The temperature control un1t WATER SUPPLY connection should
be plugged • .An external water s�pply should be connected to the WATER
SUPPLY connection on the side of the auxiliary vacuum unit. For appli
cations in which the auxiliary vacuum unit is connected to a dual zone
temperature control unit, it is �ecommended that the temperature control
unit common water supply be split. This will allow the second zone to be
used without being effected by the auxiliary vacuum unit. The unit water
supply on top of the vacuum unit should be plugged.
CAUTION: The fitting labeled "vent" must remain ope.a to atmosphere to
allow entrapped air
to
be released from the tank.
ELECTRICAL POWER: Check unit name plate for proper voltage connection.
PIPING CONNECTIONS TO A CHILLER SYSTEM
The PROCESS DELIVERY connection should be connected to the inlet to the
mold. The PROCESS RETURN-�onnectiou should be connected to the return line
from the mold. The UNIT DELIVERY connection should be connected to the
chiller DELIVERY connection. · The UNIT RETURN connection shouJ.d be connected
to the chiller RETURN connection. The UN.I'.IL-RA'llER.."SUE.E1Y connection...Gn..,_the.
a'l:lXmili.ary _ vacuum unit need not i:be.. connected.
The WATER SUPPLY connection on.the side of the vacuum unit should be
connected to the UNIT DELIVERY with the chiller delivery.
