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1999 Lennox Industries Inc.
Litho U.S.A.
Corp. 9406-L3
HS21
Service Literature
EARLY / LATE
MODEL SERIES
Revised 10-2000
HS21 SERIES UNITS
HS21 early model units ( -411, -511, -651) and late model
units (-036, -048, -060) are high efficiency residential splitĆ
system condensing units which features a twoĆspeed
compressor. Models are available in sizes ranging from 3
through 5 tons in either single or threeĆphase configuration.
The series features solidĆstate twoĆspeed control, which regĆ
ulates compressor speed in response to thermostat
demand. The HS21 is designed for use with an expansion
valve at the indoor coil.
This manual is divided into sections which discuss the comĆ
ponents, refrigerant system, charging procedures,
maintenance and operation sequences.
Information contained in this manual is intended for use by
qulified service technicians only. All specifications are
subject to change. Procedures outlined in this manual are
presented as a recommendation only and do not superĆ
sede or replace local or state codes. In the absence of
local or state codes, the guidelines and procedures outĆ
lined in this manual (except where noted) are
recommended only.
LATE
MODEL
HS21 SHOWN
ELECTRICAL DATA (Early Model)
SPECIFICATIONS (Early Model)
Model No.
HS21Ć411
HS21Ć413
HS21Ć511
HS21Ć513
HS21Ć651
HS21Ć653
Condenser Coil
Condenser Fan
Refrigerant Charge (HCFCĆ22)
Face area (sq.ft.)
Tube diameter (in.)
No. of Rows
Fins per inch
Diameter (in.)
No. of Blades
Motor hp
Cfm
Rpm
Watts
Liquid line connection (sweat)
Suction line connection (sweat)
Model No.
Line voltage data Ć 60hz.
Compressor
Rated load amps
Power factor
Locked rotor amps
Outdoor Coil
Fan Motor
Full load amps
Locked rotor amps
Max fuse or circuit breaker size (amps)
*Minimum circuit ampacity
HS21Ć511 HS21Ć513 HS21Ć651 HS21Ć653
208/230/1ph 208/230/3ph208/230/3ph 208/230/1ph208/230/1ph 208/230/3ph
334
90.0 60.0 120.0 85.0 141.0 91.0
outside / inside
21.64/
20.81
21.64/
20.81
23.92/
23.01
3/8 3/8 3/8
222
20 20 20
24 24 24
1/6 1/6 1/4
3200 3200 4200
815 815 815
170 310170
11lbs. 6oz. 11lbs. 14oz. 13lbs. 14oz.
3/8 3/8 3/8
7/8 7/8 1Ć1/8
17.6 12.7 21.6 15.8 30.8 19.9
.98 .90 .98 .90 .92 .90
1.0 1.0 1.0 1.0 1.7 1.7
1.9 1.9 1.9 1.9 2.9 2.9
40 25 45 35 60 45
23.0 16.9 28.0 20.8 40.2 26.6
HS21Ć411 HS21Ć413
*Refer to National 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