Lennox LT-B3021HW Manuel utilisateur

INSTALLATION

OPERATING&

MAINTENANCEMANUAL

SPLIT CASSETTE

English

June 2002

REFERENCE EQUIVALENCE :

LENNOX REFERENCE FACTORY NUMBER

DHA 28LT-B2861HL

Contents

Functions................................................................................................................................3

Product Specifications (Cooling & Heating)........................................................................ 5

Dimensions............................................................................................................................. 8

Refrigeration Cycle Diagram............................................................................................... 11

Wiring Diagram..................................................................................................................... 13

Operation Details ................................................................................................................. 19

Installation of Indoor, Outdoor Unit.................................................................................... 22

Test Running ........................................................................................................................ 34

Cycle...................................................................................................................................... 36

Cycle Troubleshooting Guide.............................................................................................. 39

Electronic Parts Troubleshooting Guide............................................................................ 40

Electronic Control Device.................................................................................................... 44

Schematic Diagram.............................................................................................................. 45

Exploded View and Replacement Parts List...................................................................... 47

–2–

Functions

• Room temperature sensor. (Thermistor)

• Maintains the room temperature in accordance with the Setting Temp.

• Indoor fan is delayed for 5 seconds at the starting.

• Restarting is inhibited for approx. 3 minutes.

• High, Med, Low

• Intermittent operation of fan at low speed.

• The louver can be set at swing up and down automatically.

• Although the air-conditioner is turned off by a power failure, it is restarted automatically previous operation

mode after power supply.

• The setting temperature and desired operation mode are automatically set by fuzzy rule.

• Both the indoor and outdoor fan stops during defrosting.

• Hot start after defrost ends.

• The indoor fan stops until the evaporator piping temperature will be reached at 28°C.

Indoor Unit

Operation ON/OFF by Remote controller

Sensing the Room Temperature

Room temperature control

Starting Current Control

Time Delay Safety Control

Indoor Fan Speed Control

Soft Dry Operation Mode

Airflow Direction Control

Auto Operation

Deice (Defrost) control (Heating)

Hot-start Control (Heating)

Auto Restart

–3–

–4–

Remote Controller

Operation ON/OFF

Operation Mode Selection

Fan Speed Selection

Room Temperature Display

Temperature Setting

Setting the Timer

Weekly Timer

(Cooling

model only) (Heating

model only)

(Low) (Med) (High)

Cooling Operation Mode ( )

Heating Operation Mode ( ) Auto Operation Mode ( )

Soft Dry Operation Mode ( )

Fan Operation Mode

HIMEDLO

Program Holiday

SET/CLR

MinHour

Week

Timer CancelTimer Cancel

: High:39°C ↔LOW:11°C

: Fan Operates without cooling & heating

Cooling Heating

Down to 18°C

Up to 30°CDown to 16°C

Up to 30°C

Product Specifications (Cooling & Heating)

1. 60Hz

Model Name

Item Unit

Cooling Capacity Btu/h(kcal/h)

Heating Capacity Btu/h(kcal/h)

Moisture Removal l/h

Power Source Ø, V, Hz

Indoor

Outdoor

Input Cooling

Heating

Running Current Cooling

Heating

E.E.R. Btu/h-W

Indoor

Outdoor

Net Weight Indoor kg

Outdoor

Refrigerant (R-22) g

Airflow Direction Control (Up & Down)

Remocon Type

Liquid

Gas

Drain Hose

Connecting Wire

Main Power Cable

Time Delay Safety Function

Air Circulation

Soft Dry

Fan Speed (Indoor)

Timer

Self-Diagnosis

Air Circulation m3/min

Dimensions

(W×H×D) mm

LT-

B2421CL

24,000(6,048)

–

3.5

2,700

–

12.5

–

8.89

2,000

24,000(6,048)

3.5

2,700

2,400

12.5

10.5

8.89

1,870

28,000(7,056)

–

4.0

2,850

–

12.8

–

9.82

2,150

30,000(7,560)

–

4.3

2,850

–

12.8

–

10.53

2,150

30,000(7,560)

4.3

2,850

2,750

12.8

12.3

10.53

2,400

28,000(7,056)

4.0

2,850

2,750

12.8

12.3

9.82

2,400

LT-

B2421HL LT-

B2821CL LT-

B3021CL/CW

LT-

B2821HL LT-

B3021HL/HW

–5–

Service Valve &

Connecting Tube

870 x 800 x 320

800 x 800 x 298(910 x 910 x 30)

35(30+5)

1Ø, 220V, 60Hz

870 x 655 x 320

Wired Remocon, Wireless Remocon(Optional)

3/8"(9.52)

5/8"(15.88)

0.75mm2↑

2.5mm2↑

3(Hi, Med, Low)

24Hrs

–6–

Model Name

Item Unit

Cooling Capacity Btu/h(kcal/h)

Heating Capacity Btu/h(kcal/h)

Moisture Removal ℓ/h

Power Source 󱇅, V, Hz

Indoor

Outdoor

Input Cooling

Heating

Running Current Cooling

Heating

E.E.R. Btu/h-W

Indoor

Outdoor

Net Weight Indoor kg

Outdoor

Refrigerant (R-22) g

Airflow Direction Control (Up & Down)

Remocon Type

Liquid

Gas

Drain Hose

Connecting Wire

Main Power Cable

Time Delay Safety Function

Air Circulation

Soft Dry

Fan Speed (Indoor)

Timer

Self-Diagnosis

Air Circulation m3/min

Dimensions

(W×H×D) mm

LT-B2461CL LT-B2461HL LT-B2861CL LT-B2861HL

24,000(6,048)

–

3.5

2,800

–

13.5

–

8.57

1,900

24,000(6,048)

3.5

2,800

2,500

8.57

1,870

28,000(7,056)

–

4.0

2,850

–

13.4

–

9.82

2,100

28,000(7,056)

4.0

2,850

2,650

13.4

12.6

9.82

2,400

Service Valve &

Connecting Tube

800 x 800 x 298(910 x 910 x 30)

1Ø, 220V~240V, 50Hz

35(30+5)

870 x 800 x 320

870 x 655 x 320

Wired Remocon, Wireless Remocon(Optional)

3/8"(9.52)

5/8"(15.88)

0.75mm2↑

2.5mm2↑

3(Hi, Med, Low)

24Hrs

2. 50Hz

–7–

Model Name

Item Unit

Cooling Capacity Btu/h(kcal/h)

Heating Capacity Btu/h(kcal/h)

Moisture Removal l/h

Power Source Ø, V, Hz

Indoor

Outdoor

Input Cooling

Heating

Running Current Cooling

Heating

E.E.R. Btu/h-W

Indoor

Outdoor

Net Weight Indoor kg

Outdoor

Refrigerant (R-22) g

Airflow Direction Control (Up & Down)

Remocon Type

Liquid

Gas

Drain Hose

Connecting Wire

Main Power Cable

Time Delay Safety Function

Air Circulation

Soft Dry

Fan Speed (Indoor)

Timer

Self-Diagnosis

Air Circulation m3/min

Dimensions

(W×H×D) mm

LT-

B3681CL

36,000(9,072)

–

5.0

4,300

–

7.5

–

3,150

36,000(9,072)

5.0

4,300

4,100

7.5

7.0

–

3,150

36,000(9,072)

–

5.0

4,400

–

3,150

36,000(9,072)

5.0

4,400

4,100

–

3,150

36,000(9,072)

5.0

4,000

3,800

–

3,000

36,000(9,072)

–

5.0

4,000

–

3,150

LT-

B3681HL LT-

B3661CL LT-

B3661HL LT-

B3621CL/CW

LT-

B3621HL/HW

Service Valve &

Connecting Tube

800 x 800 x 298(910 x 910 x 30)

35(30+5)

3Ø, 380-415V, 50Hz 1Ø, 220-240V, 50Hz 1Ø, 220V, 60Hz

790 x 965 x 320

Wired Remocon, Wireless Remocon(Optional)

3/8"(9.52)

3/4"(19.05)

0.75mm2↑

2.5mm2↑3.5mm2↑

3(Hi, Med, Low)

24Hrs

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