Lennox CLIMATIC series User Manual

• 8 •
(2222):
(2241):
(2242):
(2243):
(2244)
(2245)
(2246)
(2247)
(2248):
(2249):
(3221)
2.0°C
(2248)
40.0°C
(2249)
CLIMATIC RT_UNITARY-IOM-1508-E
AIR MANAGEMENT
4. External current 4/20mA offset
In this case, the set point is set by one of the previous solution and can be adjust with an offset of +/- 5.0°C.
5. DC value
The CLIMATIC receives the room set point from the DC. If the read set point is different from the one calculated by the CLIMATIC,
the new set point is set by the DC during the actual zone. Each time the zone is changing, the DC set point is overwritten by the
CLIMATIC set point.
6. BMS value
The CLIMATIC receives the room set point from the BMS. Refers to the “BMS” paragraph for more details.
Cooling set point (°C)
Actual
set point
Actual
set point
Heating set point (°C)
customer (DC/DM) set point
Dynamic set point (cooling setpoint offset according to outside temperature)
set point of cooling mode
set point of heating mode
outdoor temperature low threshold for room temperature setpoint slope
room temp setpoint offset according to low outdoor air temp
outdoor temperature high threshold for slope on the room temperature setpoint
room temp setpoint offset according to high outdoor air temp
room temperature threshold for unloading cooling mode
room temperature threshold for unloading heating mode
offset for room temperature value
Settings
The different settings to adjust the ambient air temperature are available in the menus:
The control algorithm is protected by two safety limits.
• If the room temperature reaches the low limit in cooling mode, the compressor(s) are automatically stopped,
• If the room temperature reaches the high limit in heating mode, the compressor(s) or heaters are automatically stopped.
Cooling limit operating Heating limit operating
Air temp. room (°C) Air temp. room (°C)
Cooling mode
Heating mode

Lennox CLIMATIC series Specifications

General

Brand	Lennox
Model	CLIMATIC series
Category	Controller
Language	English