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©
1997 Lennox Industries Inc.
Litho U.S.A.
Corp. 9621−L10
HP27
Service Literature
Revised 08−2004
HP27 SERIES UNITS
The HP27 is a high efficiency residential split−system heat
pump which features a scroll compressor. It operates
much like a standard heat pump, but the scroll compressor
is unique in the way that it compresses refrigerant. Several
models are available in sizes ranging from 2 through 3-1/2
tons. The series uses expansion valves in the outdoor unit
and in the indoor unit.
This manual is divided into sections which discuss the ma-
jor components, refrigerant system and charging proce-
dures, maintenance and operation sequences. All specifi-
cations in this manual are subject to change.
SPECIFICATIONS
Model No.
HP27−024
HP27−030
HP27−036
HP27−042
Netfacearea
Outer Coil
21.77 (2.02)
21.77 (2.02)
24.06 (2.24)
24.06 (2.24)
Netfacearea
sq. ft. (m
2
)
Inner Coil
21.11 (1.96)
21.11 (1.96)
23.33 (2.17)
23.33 (2.17)
Condenser
Coil
Tubediameter in. (mm)
5/16 (7.9)
5/16 (7.9)
5/16 (7.9)
5/16 (7.9)
Coil
No. of rows
2
2
2
2
Fins per inch (m)
22 (866)
22 (866)
22 (866)
22 (866)
Diameter in. (mm) No. of blades
24( 610) − 3
24( 610) − 3
24( 610) − 3
24( 610) − 3
C
d
Motor hp (W)
1/10 (75)
1/10 (75)
1/10 (75)
1/10 (75)
Condenser
Fan
Cfm (L/s)
2800 (1320)
2800 (1320)
2800 (1320)
2800 (1320)
Fan
Rpm
825
825
825
825
Watts
165
165
170
170
Refrigerant furnished (HCFC-22)
12 lbs. 5 oz. (5.6 kg)
11 lbs. 5 oz. (5.1 kg)
11 lbs. 13 oz. (5.3 kg)
12 lbs. 12 oz. (5.8 kg)
Liquid line conn. o.d. in. (mm) (sweat)
3/8 (9.5)
3/8 (9.5)
3/8 (9.5)
3/8 (9.5)
Vapor line conn. o.d. in. (mm) (sweat)
3/4 (19)
3/4 (19)
7/8 (22.2)
7/8 (22.2)
Shipping wt. lbs. (kg) 1 package
268 (122)
271 (123)
328 (149)
328 (149)
Refrigerant charge sufficient for 15 ft. (4.5 m) length of refrigerant lines.
ELECTRICAL DATA
Model No.
HP27−024
HP27−030
HP27−036
HP27−042
Line voltage data
208/230v 60hz−1ph
Rated load amps
10.26
12.18
13.46
18.0
Compressor
Power factor
0.96
0.96
0.96
0.97
p
Locked rotor amps
56
61
73
104
Outdoor Coil
Full load amps
0.9
0.9
0.9
0.9
Outdoor Coil
Fan Motor
Locked rotor amps
1.6
1.6
1.6
1.6
Rec. max. fuse or circuit breaker size (amps)
20
25
30
40
Minimum circuit ampacity
13.8
16.2
17.8
23.4
Refer to National or Canadian Electrical Code manual to determine wire, fuse and disconnect size requirements.
NOTE Extremes of operating range are plus 10% and minus 5% of line voltage.
