Lennox 10ACC Series Unit Information Download Page 2

Page 2

ELECTRICAL DATA

General

Data

Model No.

10ACC-018

-230

10ACC-024

-230

10ACC-030

-230

10ACC-036

-230

10ACC-042

-230

10ACC-048

-230

10ACC-060

-230

Line voltage data - 60hz 208/230v-1ph 208/230v-1ph 208/230v-1ph 208/230v-1ph 208/230v-1ph 208/230v-1ph 208/230v-1ph

Rec. max fuse size (amps)

20

25

30

35

40

50

60

¡

Minimum circuit ampacity

11.6

14.3

17.3

20.4

23

31.2

35.5

Compressor

Rated load amps

8.6

10.8

12.9

16.2

17.9

21.8

25

Locked rotor amps

48.3

60

69.4

96

103

131

170

Power factor

0.97

0.96

0.92

0.90

0.84

0.80

0.90

Condenser

Fan Motor

Full load amps

0.8

0.8

1.1

1.7

1.9

1.9

0.9

Fan Motor

Locked rotor amps

1.2

1.2

1.9

3.1

4.1

4.1

4.1

¡

Refer to National or Canadian 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.

SPECIFICATIONS

General

Data

Model No. 10ACC-018 10ACC-024 10ACC-030 10ACC-036 10ACC-042 10ACC-048 10ACC-060

General

Data

Nominal Tonnage (kW)

1.5 (5.3)

2 (7.0)

2.5 (8.8)

3 (10.6)

3.5 (12.3)

4 (14.1)

5 (17.6)

Connections

(sweat)

Liquid line (o.d.) - in. (mm)

©

3/8 (9.5)

©

3/8 (9.5)

3/8 (9.5)

3/8 (9.5)

3/8 (9.5)

3/8 (9.5)

3/8 (9.5)

Connections

(sweat)

Suction line (o.d.) - in. (mm)

5/8 (15.9)

5/8 (15.9)

3/4 (19.1)

3/4 (19.1)

7/8 (22.2)

7/8 (22.2) 1-1/8 (28.6)

Refrigerant

*HCFC-22

charge furnished 4 lbs. 13 oz.

(2.18 kg)

4 lbs. 13 oz.

(2.18 kg)

4 lbs. 1 oz.

(1.8 kg)

4 lbs. 13 oz.

(2.18 kg)

5 lbs. 4 oz.

(2.38 kg)

6 lbs. 3 oz.

(2.81 kg)

8 lbs. 5 oz.

(3.77 kg)

Condenser

Coil

Net face area - sq. ft. (m2) Outer Coil

9.24 (0.86)

9.24 (0.86) 10.46 (0.97) 11.41 (1.06) 13.31 (1.24) 15.11 (1.40) 20.83 (1.94)

Condenser

Coil

Inner Coil

- - -

- - -

- - -

- - -

- - -

5.4 (0.50)

- - -

Tube diameter - in. (mm)

5/16 (7.9)

5/16 (7.9)

5/16 (7.9)

5/16 (7.9)

5/16 (7.9)

5/16 (7.9)

5/16 (7.9)

No. of rows

1

1

1

1

1

1.37

1

Fins per inch (m)

22 (866)

22 (866)

18 (709)

22 (866)

22 (866)

22 (866)

22 (866)

Condenser

Fan

Diameter - in. (mm)

16 (406)

16 (406)

18 (457)

18 (457)

18 (457)

18 (457)

22 (559)

Condenser

Fan

No. of blades

3

3

3

3

4

4

4

Motor hp (W)

1/10 (75)

1/10 (75)

1/6 (124)

1/4 (187)

1/3 (249)

1/3 (249)

1/3 (249)

Cfm (L/s)

1730 (815)

1730 (815) 2170 (1025) 2510 (1185) 2800 (1320) 2950 (1390) 3900 (1840)

Rpm

1070

1070

1100

1103

1116

1100

1100

Watts

184

184

254

266

299

310

367

Shipping weight (1 package)

lbs. (kg)

107 (49)

107 (49)

136 (62)

140 (64)

140 (64)

196 (89)

199 (90)

OPTIONAL ACCESSORIES - MUST BE ORDERED EXTRA

Crankcase Heater

68887

68887

68887

68887

90P12

90P12

90P12

Hail Guards

17L71

17L71

17L71

17L73

17L73

17L73

17L73

Low Ambient Kit (for Expansion Valve systems only)

24H77

24H77

24H77

24H77

24H77

24H77

24H77

Mounting

Base

Model No.

MB2-S

(69J06)

Mounting

Base

Net Weight

6 lbs. (3 kg)

Base

Dimensions - in. (mm)

22-1/4x22-1/4x3 (565 x 565x76)

Timed-Off Control

LB-61378A

(47J35)

Unit Stand-Off Kit

94J45

94J45

94J45

94J45

94J45

94J45

94J45

Unit Hard-Start Kit

-

64J09

66K92

64J09

81J69

81J69

81J69

Compressor Monitor (Canada only)

T6-1469

(45F08)

*Refrigerant charge sufficient for 20 ft. (6.0 m) length of refrigerant lines.

©

3/8 in. x 5/16 in. (9.5 mm x 7.9 mm) reducer bushing (not furnished) is required for liquid line connection.

Summary of Contents for 10ACC Series

Page 1: ... equipped with scroll com pressors The scroll operates like a standard compressor but it is unique in the way it compresses refrigerant WARNING Refrigerant can be harmful if it is inhaled Refriger ant must be used and recovered responsibly Failure to follow this warning may result in person al injury or death WARNING Electric shock hazard Can cause injury or death Before attempting to perform any ...

Page 2: ...38 kg 6 lbs 3 oz 2 81 kg 8 lbs 5 oz 3 77 kg Condenser Coil Net face area sq ft m2 Outer Coil 9 24 0 86 9 24 0 86 10 46 0 97 11 41 1 06 13 31 1 24 15 11 1 40 20 83 1 94 Condenser Coil Inner Coil 5 4 0 50 Tube diameter in mm 5 16 7 9 5 16 7 9 5 16 7 9 5 16 7 9 5 16 7 9 5 16 7 9 5 16 7 9 No of rows 1 1 1 1 1 1 37 1 Fins per inch m 22 866 22 866 18 709 22 866 22 866 22 866 22 866 Condenser Fan Diamete...

Page 3: ...chups A misapplied system will cause erratic operation and can result in early compressor failure II UNIT COMPONENTS Unit components are illustrated in figure 1 COMPRESSOR CONTROL BOX SUCTION LINE SERVICE VALVE SUCTION LINE OUTDOOR FAN MOTOR 10ACC UNIT COMPONENTS FIGURE 1 LIQUID LINE SERVICE VALVE DISCHARGE LINE FIGURE 2 DUAL CAPACITOR C12 START CAPACITOR C7 option only POTENTIAL RELAY K31 option ...

Page 4: ...it capacitor motors The capacitor is located inside the unit control box see figures 2 and 3 A single dual capacitor C12 is used for both the fan motor and the compressor see unit wiring diagram The fan side and the compressor side of the capacitor have different MFD ratings For ratings see side of capacitor 3 Start Capacitor C7 option Start capacitor C7 is wired in parallel with the compres sor s...

Page 5: ... centrifugal action of the orbiting scroll seals off the flanks of the scrolls figure 7 2 As the orbiting motion continues the gas is forced toward the center of the scroll and the gas pocket becomes compressed figure 7 3 When the compressed gas reaches the center it is dis charged vertically into a chamber and discharge port in the top of the compressor figure 6 The discharge pressure forcing dow...

Page 6: ... contactor ELECTRICAL DATA tables in this manual show specifi cations for condenser fans used in 10ACCs Access to the condenser fan motor on all units is gained by removing the seven screws securing the fan assem bly See figure 8 The condenser fan motor is removed from the fan guard by removing the four nuts found on the top panel See figure 9 if condenser fan motor re placement is necessary FAN C...

Page 7: ...To Access Schrader Port 1 Remove service port cap with an adjustable wrench 2 Connect gauge to the service port 3 When testing is completed replace service port cap Tighten finger tight then an additional 1 6 turn To Open Liquid or Suction Line Service Valve 1 Remove stem cap with an adjustable wrench 2 Using service wrench and hex head extension 3 16 for liquid line and 5 16 for suction line back...

Page 8: ...STEM CAP INLET FROM INDOOR COIL OUTLET TO COMPRESSOR STEM USE ADJUSTABLE WRENCH ROTATE STEM CLOCKWISE 90_ TO CLOSE ROTATE STEM COUNTER CLOCKWISE 90_ TO OPEN BALL SHOWN OPEN IV CHARGING A Pumping Down System CAUTION Deep vacuum operation operating compressor at 0 psig or lower can cause internal fusite arcing resulting in a damaged or failed compressor This type of damage will result in denial of w...

Page 9: ...r 500 microns within a 20 minute period after stopping vacuum pump 6 After evacuation is complete close manifold center port and connect refrigerant drum Pressurize system slightly with refrigerant to break vacuum D Charging Units are factory charged with the amount of HCFC 22 re frigerant indicated on the unit nameplate This charge is based on a matching indoor coil and outdoor coil with a 20 ft ...

Page 10: ...n shown some refrigerant must be recovered If subcooling is less than shown some refrigerant must be added Table 3 10ACC Subcooling Values Fixed Orifice Systems Only OUTDOOR TEMP LIQUID SUBCOOLING 1_F 6_C TEMP _F _C 18 24 30 36 42 48 60 65 18 13 7 14 8 14 8 17 9 5 17 9 5 15 8 3 14 8 70 21 13 7 14 8 14 8 17 9 5 17 9 5 14 8 15 8 3 75 24 13 7 13 7 13 7 16 9 16 9 13 7 15 8 3 80 27 12 6 7 13 7 13 7 15 ...

Page 11: ...ns could mean that the system is not properly charged or that a problem exists with some component in the sys tem See table 5 E Maintenance WARNING Electric shock hazard Can cause inju ry or death Before attempting to per form any service or maintenance turn the electrical power to unit OFF at dis connect switch es Unit may have multiple power supplies Maintenance and service must be performed by ...

Page 12: ...s COOLING 1 Cooling demand initiates at Y1 in the thermostat 2 24VAC energizes compressor contactor K1 3 K1 1 N O closes energizing compressor B1 and outdoor fan motor B4 4 Compressor B1 and outdoor fan motor B4 begin immediate operation END OF COOLING DEMAND 5 Cooling demand is satisfied Terminal Y1 is de energized 6 Compressor contactor K1 is de energized 7 K1 1 opens and compressor B1 and outdo...

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