Specifications

267233-YIM-B-0507
30 Unitary Products Group
Phasing
Predator
®
units are properly phased at the factory. Check for
proper compressor rotation. If the blower or compressors rotate
in the wrong direction at start-up, the electrical connection to
the unit is misphased. Change the phasing of the Field Line
Connection at the factory or field supplied disconnect to
obtain proper rotation. (Scroll compressors operate in only one
direction. If the scroll is drawing low amperage, has similar
suction and discharge pressures, or producing a high noise
level, the scroll is misphased.)
Blower Rotation
Check for proper supply air blower rotation. If the blower is
rotating backwards, the line voltage at the unit point of power
connection is misphased (See ‘PHASING’).
Belt Tension
The tension on the belt should be adjusted as shown in Figure 26.
Figure 26: Belt Adjustment
Scroll compressors require proper rotation to operate
correctly. Units are properly phased at the factory. Do
not change the internal wiring to make the blower
condenser fans, or compressor rotate correctly.
Table 10: Supply Air Limitations
Unit Size (Ton) Minimum Maximum
078 (6.5) 1950 3250
090 (7.5) 2250 3750
102 (8.5) 2550 4250
120 (10) 3000 5000
150 (12.5) 3750 6250
$
$
$
%
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