Page 3
FIGURE 4
SCROLL
HOW A SCROLL WORKS
SUCTION
SUCTION
SUCTION
MOVEMENT OF ORBIT
STATIONARY SCROLL
ORBITING
CRESCENT
SHAPED GAS
HIGH
PRESSURE
GAS
DISCHARGE
FLANKS
SEALED BY
CENTRIFUGAL
FORCE
1
2
3
4
SUCTION
INTERMEDIATE
PRESSURE
GAS
SUCTION
III−UNIT COMPONENTS
A−Transformer
The contactor, reversing valve, time delay, and defrost tim-
er are all powered by 24VAC supplied by the indoor unit.
All other controls in the outdoor unit are powered by line
voltage. Refer to unit wiring diagram. The HP27
is not
equipped
with an internal line voltage to 24V transformer.
B−Terminal Strip
All HP27s are equipped with a low voltage terminal strip
located in the unit control box for making thermostat wiring
connections (refer to figure 6).
C−Compressor
Table 1 shows the specifications of compressors (B1)
used in HP27 series units.
TABLE 1
Unit
Phase
LRA
RLA
Oil
fl.oz.
*Shipped with conventional white oil (Sontex 200LT). 3GS oil may be
used if additional oil is required.
1
1
HP27−030
1
HP27−036
1
HP27−042
Vac
208/230
208/230
208/230
208/230
HP27−024
56
10.3
38
61
42
73
42
42
12.2
13.5
18.0
104
COMPRESSOR TERMINAL BOX
C
S
R
COMPRESSOR
TERMINALS
FIGURE 5
WARNING
COMPRESSOR MUST BE GROUNDED. DO
NOT OPERATE WITHOUT PROTECTIVE COVER
OVER TERMINALS. DISCONNECT ALL POWER
BEFORE REMOVING PROTECTIVE COVER.
DISCHARGE CAPACITORS BEFORE SER-
VICING UNIT. COMPRESSOR WIRING DIA-
GRAM IS FURNISHED INSIDE COMPRESSOR
TERMINAL BOX COVER. FAILURE TO FOLLOW
THESE PRECAUTIONS COULD CAUSE ELEC-
TRICAL SHOCK RESULTING IN INJURY OR
DEATH.
