AEC FSS Series 1.5- 10 HP Fountain Solution Systems - Manual (Page 36)

FSS Series Fountain Solution Systems Page 35
IAE-600
Calculate the amount of additional oil required by using the
following formula:
Lbs. of R-22 added
Pints of oil (Sunisco 3GS) = for field installed piping
100
3-8 Checking Motor Direction
All FSS circulators have their motor rotation(s) properly phased at
the factory. If compressors, pumps, or fans are running in reverse
rotation:
• Disconnect and lock out power at the source.
• Reverse any two power leads into the chiller disconnect
switch to change motor direction (all motors have been
phased in one direction at the factory).
Important!
Do not switch leads at the motors, motor starters, or contactors.
Three-Phase Compressors
Scroll compressors are directionally-dependent and compress in
one rotational direction.
Reversing rotation direction results in an elevated sound level over
the correct rotation; you’ll also observe substantially-reduced
current draw as compared with tabulated values.
Water Pumps
Correct pump rotation is indicated by a positive pressure of 20 to
40 psi (137.9 to 275.8 kPa/1.38 to 2.76 bars) on the pump pressure
gauge. Pump rotation should be clockwise when viewed from the
motor end.
Important!
Do not run pump dry, doing so will result in seal damage.
For pump performance, check the appropriate pump curve in
Figures 5 and 6 on Pages 27 and 28.