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USER MANUAL
MODEL NO.: TZ730–1710
Rev. 08 – 14 September 2005
10
This dryer is designed to provide a specific pressure dewpoint performance (generally
-40°F (-40°C)) at worst-case operating conditions (maximum flow at lowest pressure
and highest inlet temperature). The regeneration purge flow rate required for the dryer
is adjusted to achieve that dewpoint based on those conditions.
For example, for dryers operating at 100 psig (690 kPa) and 100°F (38°C), the purge
flow rate is approximately 15% of the specified maximum inlet flow. Dryers operating
under less severe inlet conditions will introduce a reduced humidity load. The EMS
controls have been factory programmed to monitor the dryer outlet dewpoint so that
regeneration will only begin when low desiccant performance registers.
3.2 OPERATOR CONTROLS
The operator electrical control panel features the following indicators/controls:
Dryer nameplate
Three-way selector switch:
o
DRYER OFF
o
DRYER ON
o
EMS ON (not functional on standard, non-EMS-equipped dryers)
There are shutoff valves on the prefilter, dryer chambers and afterfilter.
They are
operated manually. There is another shutoff valve on dryers with the 3V option (i.e.,
bypass assembly – see paragraph 1.2).
There are two filters. The lower filter (i.e., prefilter) housing has a differential pressure
indicator (DPI) and an automatic drain. The upper filter (i.e., afterfilter) housing has a
DPI and vent valve.
Each chamber has a chamber relief valve at the top, a pressure gauge and desiccant
fill/drain (top/bottom) ports.
3.3 INITIAL START-UP
Attention!
All pipes and wire connections must be tightened!
Furthermore, before start-up:
The pipes must be checked for the presence of scale
,
abraded
material from the threading, or other similar impurities.
All shut-off valves on the prefilter, adsorption dryer, afterfilter and on
the bypass line (if installed) should be closed.
The ambient temperature must not be less than 33°F.
Содержание TZ1050
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