Lennox BCK 020 Installation Operating & Maintenance Manual page 92

ELECTRICAL DATA
STANDARD
Logical Output Board (2 outputs : 1 freezed, 1 customized)
A 1 - Alarm, General
B 2 - Customized
(choose 1 output between those 5 possibilities°
- Alarm, FilterS
- Alarm, Blower
- Alarm, Compressors
- Alarm, Heaters
- Free, for BMS
Logical Input Board (4 inputs : 2 freezed, 2 customized)
A 1 - ON/OFF
A 2 - Reset alarm
B 3 & 4 - Customized
(choose, for each input (2) between those 7 possibilities)
- Disable, Compressors & Heaters
- Disable, Compressors
- Disable, Heaters
- Disable, Cooling
- Disable, Heating
- Fault contact, Humidifier
- Free, for BMS
A : Freezed Input / Output
B : Customized Input / Output
CONTROL variables
HUMIDITY CONTROL OR TCB
Logical Output Board (4 outputs : 0 freezed, 4 customized)
B 1 to 4 - Customized
(choose, for each input (4) between those 5 possibilities)
- Alarm, Filters
- Alarm, Blower
- Alarm, Compressors
- Alarm, Heaters
- Free, for BMS
Logical Input Board (4 outputs: 0 freezed, 4 customized)
B 1 to 4 - Customized
(choose, for each input (4) between those 7 possibilities)
- Disable, Compressors & Heaters
- Disable, Compressors
- Disable, Heaters
- Disable, Cooling
- Disable, Heating
- Fault contact, Humidifier
- Free, for BMS
Analogue Input Board (4 outputs: 0 freezed, 4 customized)
B 1 to 4 - Customized
(choose, for each input (4) between those 4 possibilities)
-Override room temp set point 0-10°C (0-10V)
-Override fresh air set point 0-100%
-Free temperature (NTC probe)
-Free relative humidity (4-20mA)
IOM / ROOFTOP BALTIC Series - 0803 - E Page 91