Technical information

UGH021/0301 VL Series Portable Chillers, 2 to 40 Tons
Page: 11
To process connection:
connect to “water in” on process manifold
From process connection:
connect to “water out” on process manifold
Water supply connection:
(not shown on this unit)
connect to city water source
Figure 2.2B
Typical process connections
for air cooled chiller
2.3 WATER SUPPLY CONNECTION
A. The automatic water supply make-up system continually monitors
the reservoir tank and fills it when needed. Connect as follows:
1. Connect the chiller’s ‘WATER SUPPLY’ port to the plant’s
city water source.
2. Minimum water supply pressure requirement is identified
on the equipment data plate. This is normally 20 psi.
3. Be certain to use a water supply line equipped with a back
flow prevention device to prevent contamination of potable
water.
2.4 AIR COOLED CONDENSER
A. Air cooled condensers require ambient air temperatures between
60°F and 95°F for efficient operation. Operating above above 95°F
may result in elevated condensing pressures and eventual shut-
down on the high pressure safety switch. In such cases, a water
assist unit may be necessary for operations. Air temperatures below
60°F may result in below normal condensing pressures and poor
condensing. In such cases, a low-ambient damper assembly is
required. Check with the Conair service department for more
information on operating with ambients air temperatures above
95°F or below 60°F.