SERVICE
HP23
UNIT
INFORMATION
Page 1
1993 Lennox Industries Inc.
Corp. 9428–L10
Replaces Corp. 9330-L4
Litho U.S.A.
HP23 SERIES UNITS
The HP23 is a high-efficiency residential
split-system heat pump. Extra large outdoor coil,
coil circuiting and high outdoor coil air volume
result in a high SEER rating (minimum of 10.0).
HP23-141 through HP23-510 units are designed for
use with an expansion valve or RFCIII system in the
indoor unit. HP23-651/653 units are designed for use
with an expansion valve only in the indoor unit.
All compressors are hermetically sealed for
trouble-free operation and long service life.
Compressor components are spring mounted within
the sealed housing. The compressor is installed in the
unit on resilient rubber mounts to assure quiet,
vibration-free operation. A built-in limit protects the
compressor from excessive current and temperatures.
A high pressure safety limit is furnished as standard.
HP23–211 through HP23–650 models are furnished with
crankcase heaters as standard equipment. The heater
prevents liquid from accumulating in the compressor.
The heater is temperature-actuated and operates only
when required. A crankcase heater for HP23-141 units is
optional, but suction accumulator is factory installed.
Several models are available in sizes ranging from 1
through 5 tons.
This manual is divided into sections which discuss major
components refrigerant system, charging procedures,
maintenance, and operation sequence.
Canadian specifications are marked (CAN).
All specifications in this manual are subject to change.
SPECIFICATIONS
Model No.
HP23-141
HP23-211
HP23-261
HP23-311
N t f
(
ft )
Outer coil
12.60
12.60
12.60
14.70
Condenser
Net face area (sq. ft.)
Inner coil
- - - -
- - - -
- - - -
- - - -
Coil
Tube diameter (in.) & no. of rows
3/8 — 1
3/8 — 1
3/8 — 1
3/8 — 1
Fins per inch
20
20
20
20
Diameter (in.) & no. of blades
20 — 3
20 — 3
20 — 3
20 — 3
Motor hp
1/6
1/6
1/6
1/6
Condenser
Fan
Cfm
2630
2630
2630
2665
Rpm
840
840
840
850
Watts
210
210
210
210
*Refrigerant — 22 charge furnished
5 lbs. 3 oz.
5 lbs. 6 oz.
6 lbs. 2 oz.
7 lbs. 3 oz.
Liquid line (o.d. in.) connection (sweat)
**3/8
***3/8
***3/8
3/8
Suction line (o.d. in.) connection (sweat)
1/2
5/8
5/8
3/4
*Refrigerant charge sufficient for 20 ft. length of refrigerant lines.
**3/8” x 1/4” reducer furnished to adapt to 1/4 field fabricated line set.
***3 /8” x 5/16” reducer furnished to adapt unit to 5/16” line set.
