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SPECIFICATIONS (continued)

Model No.

HS24Ć411

HS24Ć413

HS24Ć461

HS24Ć463

HS24Ć511

HS24Ć513

HS24Ć651

HS24Ć653

Net face area

Outer coil

14.70

14.70

20.00

20.00

Condenser

(sq. ft.)

Inner coil

Ć Ć Ć Ć

9.80

Ć Ć Ć Ć

15.40

Coil

Tube diameter (in.) & no. of rows

3/8 Ċ 1

3/8 Ċ 1.67

3/8 Ċ 1

3/8 Ċ 1.77

Fins per inch

20

20

20

20

Diameter (in.) & no. of blades

20 Ċ 3

20 Ċ 3

24 Ċ 4

24 Ċ 4

Condenser Motor hp

1/6

1/6

1/4

1/4

Fan

Cfm

2700

2450

3900

4000

Rpm

840

840

835

830

Watts

205

210

340

355

*Refrigerant Ċ 22 charge furnished

5 lbs. 15 oz.

9 lbs. 6 oz.

9 lbs. 0 oz.

11 lbs. 5 oz.

Liquid line (o.d. in.) connection (sweat)

3/8

3/8

3/8

3/8

Suction line (o.d. in.) connection (sweat)

3/4

7/8

7/8

1Ć1/8

Shipping weight (lbs.) 1 package

182

223

238

271

*Refrigerant charge sufficient for 25 ft. length of refrigerant lines.

I - UNIT INFORMATION

HS24 condensing units are available in 1, 1 Ć1/2, 2, 2 Ć1/2,
3, 3 Ć1/2, 4 and 5 ton capacities.
All  major  components  (indoor  blower/coil)  must  be

matched according to Lennox recommendations for the

compressor to be covered under warranty. Refer to the EnĆ
gineering  Handbook  for  approved  system  matchups.  A

misapplied system will cause erratic operation and can reĆ

sult in early compressor failure.

II - UNIT COMPONENTS
A - Control Box (Figures 1 and 2)

FIGURE 1

DUAL CAPACITOR

(C12)

START

CAPACITOR

(C7)

POTENTIAL

RELAY K31

(461,511,651)

COMPRESSOR

CONTACTOR

(K1)

HS24 UNIT CONTROL BOX

SINGLE PHASE

GROUNDING

LUG

FIGURE 2

FAN

 CAPACITOR

 (C1)

HS24 UNIT CONTROL BOX ALL 

THREE PHASE UNITS

TRANSFORMER(T5)

J" VOLTAGE

UNITS ONLY

GROUNDING

LUG

COMPRESSOR

CONTACTOR

(K1)

DANGER

Shock Hazard
All  single  phase  HS24  units  use

singleĆpole contactors. One leg of

compressor,  capacitor  and  conĆ

denser  fan  are  connected  to  line

voltage at all times. Potential exĆ

ists for electrical shock resulting

in injury or death. Remove all powĆ

er at disconnect before servicing.
Can cause personal injury or death.

Summary of Contents for HS24-141

Page 1: ...ated and operates only when required Several models are available in sizes ranging from 1 through 5 tons This manual is divided into sections which discuss the ma jor components refrigerant system cha...

Page 2: ...2 2 1 2 3 3 1 2 4 and 5 ton capacities All major components indoor blower coil must be matched according to Lennox recommendations for the compressor to be covered under warranty Refer to the En gine...

Page 3: ...ted at 3 4 VA with a 575 volt primary and a 460 volt secondary 5 Potential Start Relay K31 All HS24 461 511 651 series units use a potential relay which controls the operation of the starting circuit...

Page 4: ...n exhaust cycle At this instant the compression is begin ning 1 The roller rotates and compression continues 2 When the blade is fully extended the suction port is separated from the discharge port 3...

Page 5: ...s and up FIGURE 8 Access to the condenser fan motor on all units is gained by removing the six 6 screws securing the fan guard See figures 8 and 9 The condenser fan motor is attached to the fan guard...

Page 6: ...ve is a front and back seating valve When the valve is backseated the service port is iso lated from the system CAUTION The service port cap is used to seal the liquid line service valve Access to ser...

Page 7: ...Suction valves are non backseating Do not at tempt to backseat this valve Attempts to backseat this valve will cause snap ring to explode from valve body under pressure of refrigerant Person al injur...

Page 8: ...cuating the System 1 Attach gauge manifold Connect vacuum pump with vacuum gauge to center port of gauge manifold With both manifold service valves open start pump and evacuate indoor coil and refrige...

Page 9: ...move refrigerant from system to increase ap proach temperature TABLE 10 Model Liquid Temp Minus Ambient Temp F HS24 261 HS24 311 HS24 411 413 HS24 461 463 APPROACH METHOD EXPANSION VALVE SYSTEMS 4 1 8...

Page 10: ...0 9 8 6 5 4 2 15 15 14 14 13 13 12 12 11 10 10 9 20 19 19 18 18 17 17 16 15 15 14 13 17 16 16 15 15 14 14 13 13 12 11 10 D Oil Charge Table 4 on page 3 shows the factory oil charge in HS24 units V Mai...

Page 11: ...emand 5 Cooling demand is satisfied 6 Contactor K1 is de energized 7 K1 1 opens and compressor B1 and condenser fan motor B4 are de energized and stop immediately Cooling With Start Components 8 Cooli...

Page 12: ...i cal or electronic Cooling 1 Cooling demand initiates at Y1 in the thermostat 2 Compressor contactor K1 is energized 3 K1 1 N O closes energizing terminal C of compressor B1 and condenser fan motor B...

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