INSTRUCTION MANUAL
Model HC
Reference 219
Rev 2
Page 12 of 46
06/20/2013
1.0.6 Drain
Piping
1.0.6.1
All the moisture removed from the compressed air is drained
away through the drain valves under the separator. Both
valves should be connected to a suitable drain through drain
piping of sufficient size for its length, to avoid pressure drop or
blockage due to contaminants on the drain water. It is
recommended that at some convenient point in the drain
piping, the water flow should be visible, so that proper drain
operation can be visually verified.
1.0.7 Cooling
Water
1.0.7.1
An adequate supply of clean water must be available to the
dryer INTERCOOLER. The use of dirty or scale forming water
should be avoided. DIRTY water reduces cooling efficiency
and will require regular "back flushing" to maintain
performance.
1.0.7.2
The standard Sahara-Pak HC dryer is designed to use
approximately 3.77 GPM per 100 SCFM of 85
F cooling water.
The air exiting the intercooler should be 95
F or less as
indicated by the temperature screen on the panel view. This
temperature is located under the heading of cooler outlet
temperature. The cooling water inlet and outlet pipe size is
listed in the specifications at the front of this manual. The inlet
and outlet are clearly marked, but in case the unit has been
repainted or the markings are otherwise unreadable, the
cooling water flow is COUNTER-CURRENT to the air flow.
That is, the cooling water inlet is at the SEPARATOR end of
the cooler.
1.0.7.3
The performance of the Sahara-Pak HC dryer is directly
related to the cooling water temperature; thus, the cooling
water should be as cold as possible. High cooling
temperatures will adversely affect the outlet dew point.
1.0.7.4
The cooling water pressure drop is approximately 2 PSID
through the cooler at the above stated water flow rate, so the
cooling water supply pressure and supply and return piping
should be sized accordingly.
1.0.7.5
Do not install a thermostatically controlled water regulating
valve on the dryer and operate the cooling water in series, as
this would seriously reduce the cooling water supply to the
compressor.
Summary of Contents for Sahara-Pak HC-1260
Page 40: ...INSTRUCTION MANUAL Model HC Reference 219 Rev 2 Page 40 of 46 06 20 2013 SECTION 4 WARRANTY...
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Page 87: ...INSTRUCTION MANUAL Model HC Reference 219 Rev 2 Page 45 of 46 06 20 2013 SECTION 7 CUT SHEETS...
Page 128: ...INSTRUCTION MANUAL Model HC Reference 219 Rev 2 Page 46 of 46 06 20 2013 SECTION 8 DRAWINGS...
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