Advantage BC-N4 Series, Инструкция по эксплуатации

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BC-N4 Glycol Chiller
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ADVANTAGE ENGINEERING, INC.
525 East Stop 18 Road Greenwood, Indiana 46142
317-887-0729 Fax: 317-881-1277
Service Department Fax: 317-885-8683
Email: service@AdvantageEngineering.com
3. Install an owner supplied shut off valve in the make-up water supply line. Install
this valve on the outside of the unit.
4. Use a back flow prevention device as may be required by local codes to prevent
possible contamination of potable water.
B. Do not use automatic water make-up system when operating with glycol below 48°F or
where ambient temperatures may be below 40°F.
2.5 AIR COOLED CONDENSER
A. Air-cooled condensers require ambient air temperatures between -20°F and 95°F for
efficient operation. Operating above 95°F may result in elevated condensing pressures
and eventual shut-down on the high pressure limit switch. Air temperatures below -20°F
may result in over condensing pressures and cause a low pressure refrigerant fault.
B. Air flow is generated by the motor mounted fans or centrifugal blowers. Air flow is from
the outside of the chiller, through the condenser and exhausted through the top of the
unit. Exhaust air can not be ducted on motor mounted fan models.
C. A free air space of at least two (2) feet is required at the condenser intake and six (6) feet
at the condenser discharge to allow for proper air flow.
D. At full load, the chiller will discharge approximately 15,000 BTU’s per hour per ton of
cooling. The air cooled condenser on the unit will discharge approximately 15,000 BTU’s
per hour for every 12,000 Btu/hr of process cooling and the air flow rate is approximately
1 cfm / nominal ton.
H. All air cooled units must have all enclosure panels in place before operating compressor.
Air will not be drawn through the condenser coil if the panels are not in place. Starting the
unit without the enclosure panels in place will result in a refrigerant fault.
I. Condenser Air Filtering. Use a filter that produces very low air flow restrictions.
Generally a disposable fiberglass filter with a MERV rating of 2 - 3 provides adequate air
filtration. The purpose of the filter is to prevent large particles such as dust, lint and debris
from fouling the condenser. You should be able to see through the filter media. Using
restrictive filter media can cause loss of chiller capacity, difficulty running in warm weather
and fan motor overheating.
WARNING: Check local codes to determine proper use of back flow prevention device in water
make-up supply line.
Typical Filter materials.