Advantage BG-N4 Series, Instruction Manual

Page: 23 / 76

BG-N4 Glycol Chiller
Page: 23
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. WATER QUALITY CONTROL. Lack of, as well as, improper water treatment can
damage the chilling unit. The services of competent water treatment specialist
should be obtained and their recommendations followed. It is the equipment
owner’s responsibility to prevent damage from foreign material or inadequate
water treatment. See water treatment section in
section 1.6 of this manual for more information.
4. MANUAL FILL: Disconnect and lock out the
electrical power supply and remove all necessary
cover panels to access the reservoir. Add fluid
directly to the reservoir. When the pump is
first started, as process lines are filled and air
is purged, additional fluid may be required to
restore the reservoir to the correct level. Verify
reservoir level via the coolant sight glass .
5. Do not use deionized water in this unit unless
your unit was specifically designed for use with
deionized water. Consult factory if not certain.
B. PROPER ROTATION (PHASING) OF SCROLL
COMPRESSORS & PUMPS & FANS
1. Correct compressor, fan (on air-cooled units) and pump
rotation is critical for unit performance and to avoid
severe damage to the compressor.
2. All portable chiller compressors and pumps will be set to rotate in the same
direction during the testing process at the factory.
3. After electrical installation the rotation must be checked by observing the pump
motor shaft on the end of the pump and comparing its rotation to the directional
arrow on the motor. If the rotation needs to be changed it should be done at the
main power entry by switching any two power conductors at the terminal block or
customer supplied main power disconnect. Recheck rotation before operating the
units.
4. Caution must be taken when checking rotation to avoid electrical shock.
5. A scroll compressor may make a loud rattling noise when rotating in the wrong
direction.
6. Operating the scroll compressor in the wrong direction will cause the unit to
trip on it’s internal temperature limit and may cause unit damage. When the
temperature limit trips, the compressor must be allowed to cool before it will
restart. This many take substantial time.
7. Procedure to set proper rotation:
a. Supply electrical power to the unit. Once the correct voltage is supplied
to the unit, the POWER switch on the unit’s control panel will illuminate.
Adjust the setpoint to 70°F or higher to prevent the compressor from
activating during this procedure.
Typical reservoir sight glass