Temperature Controller

CL50-RoofTop

Lennox CL50-RoofTop

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Table of Contents

Table of Contents4
Introduction5
Connection6
Configuration10
Scheduling - Clock Setting12
Ventilation15
Thermostat / Hygrostat - Set Points17
Thermostat / Hygrostat - Control Principle19
Fresh Air Damper - Free-Cooling20
Compressors22
Defrost - Heat Pump24
Supplement of Heating (Option)25
Customized Input/Output27
- Error Codes29
- Insufficient Airflow30
- Filters Clogged or Missing31
- Ambient Temperature and Humidity, Outside Limits32
- Blowing Temperature, Outside Limits33
- Overheating of Electrical Heating Elements34
- Gas Burner Faults35
- External Humidifier Fault36
- Hot Water Circulator Fault36
- Extension Card Fault (BE50)37
- Fault in Real Time Clock37
- Faulty Probes and Sensors38
- Blowing Fan39
- Condenser Fans40
- Water Condenser Faults41
- Smoke Detector42
- Compressors Shut down on LP Cutoff43
- Compressor Shut down Onhp Cut off or Electrical Protection44
Communication45
- Master/Slave45
- Bms47
Configuring the Bm50 Plan Address48
Allocation of Displays to the Bm5049
Dc50 Comfort & Dm50 Multi Customer Display50
Ds50 Service Display55
Ds50 Menu Tree61
Digital Input69
Climatic™50 Input/Output Mapping69
Modbus, Lontalk Adress Tables72

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