Scroll Compressor - Lennox HP29 Series Unit Information

B − Compressor (Reciprocating & Scroll)
DANGER
Make sure all power is disconnected before
beginning electrical service procedures.
Some HP29 units utilize a conventional reciprocating
compressor. Table 6 shows the specifications of reciprocating
compressors used in HP29 series units.
TABLE 6
HP29 COMPRESSOR SPECIFICATIONS
Unit
MAN/MODEL
HP29−211 COP/CR16K6−PFV
HP29−211 TEC/AWD5516EXD
HP29−261 COP/CR22K6−PFV
HP29−261 TEC/AWD5522EXD
HP29−311 COP/CR28K6−PFV
COP/CR34K6−PFV
HP29−411
HP29−413 COP/CR35K6−TF5
HP29−413 COP/CR35K6−TFD
HP29−461 TEC/AV554OF
HP29−463 TEC/AV5540F
HP29−463 TEC/AV5540F
HP29−511 TEC/AV5545F
TEC/AV5545F
HP29−513
HP29−513 TEC/AV5545F
HP29−513 TEC/AV5545F
HP29−651 TEC/AV5558F
HP29−653 TEC/AV5558F
TEC/AV5558F
HP29−653
HP29−653 TEC/AV5558F
HP29−018 COP/CR16K6−PFV
HP29−024 COP/CR22K6−PFV
HP29−036 TEC/AVD5535EXT
HP29−036 TEC/AVD5535EXG
HP29−042 TEC/AV5540F
HP29−042 TEC/AV5540F
Some HP29 units utilize a scroll compressor. The scroll
compressor design is simple, efficient and requires few
moving parts. A cutaway diagram of the scroll compressor is
shown in figure 8. The scrolls are located in the top of the
compressor can and the motor is located just below. The oil
level is immediately below the motor.

SCROLL COMPRESSOR

DISCHARGE
SUCTION
FIGURE 8
Voltage Phase LRA RLA Oil fl.oz.
208/230 1 49 8.6
208/230 1 48.3 7.9
208/230 1 56 9.8
208/230 1 60 10.06
208/230 1 75 13.7
208/230 1 96 16.2
208/230 3 75 10.3
460 3 40 4.3
208/230 1 92 17.5
208/230 3 87 12.8
460 3 44 6.4
208/230 1 110 23.4
208/230 3 91 14.0
460 3 46 7.1
575 3 37 5.8
208/230 1 123 26.9
208/230 3 128 17.3
460 3 9.0
64
575 3 51 7.1
208/230 1 49 7.9
208/230 1 60 10.1
208/230 3 75 10.3
460 3 37.5 5.6
208/230 3 87 12.8
460 3 44 6.4
The scroll is a simple compression concept centered around
the unique spiral shape of the scroll and its inherent properties.
Two identical scrolls are mated together forming concentric
spiral shapes. One scroll remains stationary, while the other is
allowed to "orbit." The orbiting scroll does not rotate or turn but
merely orbits the stationary scroll. Due to its efficiency, the
scroll compressor is capable of drawing a much deeper
vacuum than reciprocating compressors. Deep vacuum
operation can cause internal fusite arcing resulting in
damaged internal parts and will result in compressor
failure. Never use a scroll compressor for evacuating or
for deep vacuum operation (operating compressor at 0
45
32
psig or lower) on the system. Table 7 shows the
45
specifications of scroll compressors used in the HP29
32
series units.
45
45
45
HP29 COMPRESSOR SPECIFICATIONS
45
Unit
54
HP29−030
COP/ZR30KC−PFV
54
HP29−036
COP/ZR36KC−PFV
54
54 HP29−042 COP/ZR42KC−PFV
54
HP29−048
COP/ZR46K3−PFV
54
HP29−048
COP/ZR46K3−TF5
54
HP29−048
COP/ZR46K3−TFD
54
COP/ZR46K3−TFE
HP29−048
54
COP/ZR61K3−PFV
HP29−060
54
COP/ZR61K3−TF5
HP29−060
54
HP29−060
COP/ZR61K3−TFD
45
HP29−060
COP/ZR61K3−TFE
45
Three-Phase Compressor Rotation
54
54
Three-phase scroll compressors must be phased
54
sequentially to ensure correct compressor rotation and
54
operation. At compressor start-up, a rise in discharge and
drop in suction pressures indicates proper compressor
phasing and operation. If discharge and suction pressures
do not perform normally, follow the steps below to correctly
phase the unit.
1 − Disconnect power to the unit.
2 − Reverse any two field power leads to the unit.
3 − Reapply power to the unit.
Discharge and suction pressures should operate within
their normal start-up ranges.
NOTE − Compressor noise level may be significantly higher
when phasing is incorrect and the unit will not provide
cooling when compressor is operating backwards.
Continued backward operation will cause the compressor
to cycle on internal protector.
Page 9
TABLE 7
MAN/MODEL Voltage Phase LRA RLA Oil fl.oz.
208/230 1
208/230 1
208/230
1
1
208/230
3
208/230
3
460
3
575
208/230 1
3
208/230
460 3
3
575
84 14.7 42
100 16 42
127 20.3 42
129 23.7
66
72
120
13.5
49.5 7.4
72
40 5.8
72
169 28.8
56
72
137 17.3
72
62 9
50 7.1
72