FIGURE 3
TYPICAL PIPING ARRANGEMENT
AIR
DRYER
OIL
SEPARATOR
DRAIN
VALVE
CHECK
VALVE
CHECK
VALVE
CHECK
VALVE
DRAIN
VALVE
CHECK
VALVE
PREFILTER
B
A
C
AIR OUT
AIR IN
UNIT AS DELIVERED
OPTIONAL ACCESSORY ITEMS
NOTE:
DRAIN TUBE MUST NOT RISE OR BE CONNECTED TO
EXCESSIVELY LONG PIPE WHICH MAY CREATE BACK PRESSURE
A CONNECTION TO OPEN FLOOR DRAIN IS REQUIRED
D
E
7.4 ELECTRICAL CONNECTION
Equipment is available in various electrical configurations. All customer power
connections can be made at the terminal connections located in the Customer
Electrical Connection Box on the rear of the dryer. (Refer to General Arrangement
and appropriate Wiring Diagrams.)
A suitable fused disconnect switch or circuit breaker, in accordance with national and
local code requirements, is recommended for all ZEKS equipment. Refer to Section
13 for voltage requirements and load.
15
ZEKS 200 - 400 HSG models come with a drain isolation valve (D) factory installed.
The isolation valve permits maintenance of the automatic drain without isolating air
flow to the dryer. To operate dryer, all valves shown in Figure 3 are to be closed
except valves (B), (C) and (D). Valve (A) is used for bypass purposes and valve
(E) is for test and manual drain purposes.
7.3 FILTRATION
To protect the air dryer from gross contamination associated with compressor oil
and debris and ensure maximum dryer performance, a prefilter is recommended.
Prefilters and afterfilters sized to your drying application can be provided by ZEKS
and are available factory installed. Call your local distributor to select the filter that
best suits your filtration requirements. In addition to air filtration, condensate discharge
oil/water separators are also available to address stringent EPA regulations.
