Lennox CLIMATIC II User Manual

V2.2
-00
8
HOT REGULATION WITH GRADIENT
Function
To adapt the regulation set point to the outside air temperature for improved counterbalancing of heat loss to the
outside from the premises to be heated.
Description
The regulation set point CONSREG is calculated according to the following parameters :
TEA ó Outside air temperature (°C)
CONSAI ó 1st reference air temperature selected (°C)
CONSA ó 2nd reference air temperature selected (°C)
TECS ó Maximum hot water temperature instruction (°C)
CONSEM ó Required water instruction for the air instruction CONSAI (°C)
(CONSEM must be less than TECS-2°C).
CONSEC ó Required water instruction for the air instruction CONSA (°C)
(CONSEI must be greater than 25°C).
PENTEC ó Regulation gradient (%)
The gradient is calculated using the following equation:
PENTEC = 100 x ( ( CONSEC - CONSEM ) / ( CONSA - CONSAI ) )
CONSREG = CONSEC + ( PENTEC x ( TEA - CONSA ) / 100 )
Example of regulation :
Avec CONSAI = -10°C
CONSEM = 50°C
CONSA = 15°C
CONSEC = 30°C
⇒ PENTEC = -80 %
TEA
(°C)
CONSREG
(°C)
-10 50
-5 46
0 42
5 38
10 34
15 30
CONSREG
CONSAI
TEA
CONSEM
25°C
PENTEC
CONSA
CONSEC

Lennox CLIMATIC II Specifications

General

Brand	Lennox
Model	CLIMATIC II
Category	Control Unit
Language	English