SERVICE
10HP
UNIT
INFORMATION
Page 1
1994 Lennox Industries Inc.
Corp. 9427–L10
Replaces Corp. 9329–L4
Litho U.S.A.
10HP SERIES UNITS
The 10HP 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).
10HP12 through 10HP48 units are designed for use
with an expansion valve or RFCIII system in the
indoor unit. 10HP60 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.
10HP18 through 10HP60 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 10HP12 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 the
major components, refrigerant system, charging
procedure, maintenance, and operation sequence.
Canadian specifications are marked (CAN).
All specifications in this manual are subject to change.
SPECIFICATIONS
Model No.
10HP12
10HP18
10HP24
10HP30-1
10HP30-2
Net face a ea (sq ft )
12 6
12 6
12 6
14 7
Outdoor
Net face area (sq. ft.)
12.6
12.6
12.6
14.7
Outdoor
Coil
Tube diameter (in.) & no. of rows
3/8 — 1
3/8 — 1
3/8 — 1
3/8 — 1
Coil
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
Outdoor
F
Cfm
2630
2630
2630
2665
Fan
Rpm
840
840
840
850
Watts
210
210
210
210
Full load amps
1.1
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
Vapor line (o.d. in.) connection (sweat)
1/2
5/8
5/8
3/4
Line voltage data – 60hz
208-230v—1ph
Compressor rated load amps
5.0
8.1
10.9
12.2
13.7
Rec. max. fuse or circuit breaker size (amps)
15
15
25
25
30
*Minimum circuit ampacity
7.4
11.3
14.8
16.4
18.2
*Refer to National Electric Code manual to determine wire, fuse and disconnect size requirements.
NOTE – Extremes of operating range are plus 10% and minus 5% of line voltage.
3/8 in. x 1/4 in. reducer furnished to adapt to 1/4 in. field fabricated line set.
3/8 in. x 5/16 in. reducer furnished to adapt unit to 5/16 in. line set.
