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SERVICE
The
10HP
is
a
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
trouble-free
operation
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.
Model No.
Net face a ea (sq ft )
Net face area (sq. ft.)
Outdoor
Outdoor
Tube diameter (in.) & no. of rows
Coil
Coil
Fins per inch
Diameter (in.) & no. of blades
Motor hp
Outdoor
Cfm
F
Fan
Rpm
Watts
Full load amps
Refrigerant — 22 charge furnished
Liquid line (o.d. in.) connection (sweat)
Vapor line (o.d. in.) connection (sweat)
Line voltage data – 60hz
Compressor rated load amps
Rec. max. fuse or circuit breaker size (amps)
*Minimum circuit ampacity
*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.
INFORMATION
Replaces Corp. 9329–L4
10HP SERIES UNITS
high-efficiency
residential
hermetically
sealed
and
long
service
SPECIFICATIONS
10HP12
12 6
12.6
3/8 — 1
20 — 3
1/6
2630
840
210
5 lbs. 3 oz.
{
1/2
5.0
7.4
UNIT
Corp. 9427–L10
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.
for
life.
10HP18
12 6
12.6
3/8 — 1
20
20
20 — 3
1/6
2630
840
210
5 lbs. 6 oz.
{{
3/8
3/8
5/8
208-230v—1ph
8.1
15
15
11.3
Page 1
Litho U.S.A.
10HP24
10HP30-1
12.6
12 6
14 7
14.7
3/8 — 1
3/8 — 1
20
20 — 3
20 — 3
1/6
1/6
2630
2665
840
850
210
210
1.1
6 lbs. 2 oz.
7 lbs. 3 oz
{
3/8
3/8
5/8
3/4
10.9
12.2
25
25
14.8
16.4
1994 Lennox Industries Inc.
10HP
10HP30-2
20
13.7
30
18.2
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Table of Contents
Related Manuals for Lennox Diplomat 10HP12
Summary of Contents for Lennox Diplomat 10HP12
- Page 1 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.
-
Page 2: I - Unit Information
5 ton capacities. II – UNIT COMPONENTS All major components (indoor blower/coil) must be matched according to Lennox recommendations for Unit components are illustrated in figure 1. the compressor to be covered under warranty. Refer to 10HP UNIT COMPONENTS... - Page 3 Shock Hazard TABLE 2 All 10HP units use single-pole 10HP START CAPACITOR RATING (C7) contactors. One leg of compressor, Unit 10HP12, 18 and 24 88–108 capacitor and outdoor fan are 10HP30-1 and 36 88–108 connected to line voltage at all 10HP30-2 145–175...
- Page 4 (14 minutes) cannot be changed. To change the DANGER interval between defrosts, simply remove the jumper from the pin it is connected to and Do not attempt to repair this control. Unsafe reconnect the jumper to one of the other available operation will result.
-
Page 5: Defrost Thermostat
5– “24V” Terminal A defrost period can last up to 14 minutes and can be terminated two ways. If the defrost thermostat does Terminal “24V” receives 24VAC from the control not open within 14 minutes after defrost begins, the transformer through the defrost thermostat. This timer will de–energize the defrost relay and the unit terminal powers the control’s internal timer and will resume normal operation. - Page 6 2 – Accumulator roller and as the eccentric rotates, the roller rotates. All 10HP12, 42, 48 and 60 units are equipped with an The spring loaded blade accumulator that is mounted in the suction line. The is in continuous contact...
- Page 7 5 – Compressor Cover (Figure 11) Access to the outdoor fan motor on all units is gained by removing the six screws securing the fan guard. compressor cover COMPRESSOR COVER See figures 12 and 13. The outdoor fan motor is COVER constructed of vinyl-faced SLIT FOR...
- Page 8 R–22 SERVICE VALVE ONLY COMPRESSOR DRUM PORT EXPANSION THERMOMETER ACCUMULATOR INDOOR VALVE OR WELL 10HP12, 48 AND COIL RFCIII 60 ONLY FIGURE 16 10HP HEATING CYCLE (SHOWING GAUGE MANIFOLD CONNECTIONS) DEFROST THERMOSTAT OUTDOOR UNIT EXPANSION REVERSING VALVE OUTDOOR VALVE COIL NOTE –...
-
Page 9: Liquid Line Service Valve
4 – When finished using port, backseat stem with IMPORTANT service wrench. Tighten firmly. 5 – Replace service port and stem cap. Tighten finger A schrader valve is not provided on the liquid line tight, then tighten an additional 1/6 turn. service port. - Page 10 Do not attempt to backseat this valve. Attempts to backseat this valve will cause snap ring to explode Lennox L10 series line sets as shown in table 6 or field from valve body under pressure of refrigerant. fabricated refrigerant lines.
- Page 11 10HP12 REFRIGERATION COMPONENTS SUCTION MUFFLER SUCTION LINE DISTRIBUTOR LIQUID LINE ACCUMULATOR SERVICE PORT DEFROST SENSING SWITCH S6 BULB DISCHARGE LINE FILTER/DRIER SERVICE PORT W/INTERNAL CHECK VALVE EXPANSION VALVE STRAINER MUFFLER SERVICE LIQUID LINE FROM INDOOR COIL ROTARY COMPRESSOR VALVES VAPOR LINE FROM...
- Page 12 10HP REFRIGERANT CHARGE* manifold and open drum valve slightly to purge line Unit Refrigerant Charge R–22 at manifold. Break vacuum in system with nitrogen 10HP12 5 lbs. 3 oz. 10HP18 5 lbs. 6 oz. pressure by opening manifold high pressure valve.
- Page 13 AMBIENT TEMPERATURE BELOW 60 _F (16 _C) temperature warmer. Condensing Temp F Warmer Than Model Liquid Line TABLE 9 10HP12 4 + 2 APPROACH METHOD – EXPANSION VALVE SYSTEMS AMBIENT TEMPERATURE OF 60 _F (16 _C) OR ABOVE 10HP18 9 + 2...
-
Page 14: Rfciii Systems
10HP30 CB/CBH19–31 to determine the correct blower CFM. Refer to 10HP36 CB/CBH19–41 10HP36 (CAN) CB/CBH19–41 Lennox Engineering Handbook for Static 10HP42 CB/CBH19–41 Pressure and CFM tables. 10HP48 CB19–51 *Approved matchups only 4 – Check all wiring for loose connections. - Page 15 VI – WIRING DIAGRAM AND SEQUENCE OF OPERATION 10HP OPERATING SEQUENCE A–10HP Operation Sequence AUXILIARY HEAT (SECOND STAGE): 13 – Additional heating demand initites at W3 in the thermostat. Outdoor This is the sequence of operation for 10HP units. The sequence is unit remains running.
- Page 16 10HP WITH ELECTROMECHANICAL THERMOSTAT...