Lennox CLIMATIC II User Manual

V2.2
-00
7
COLD REGULATION WITH GRADIENT
Function
To adapt the regulation set point to the outside air temperature, for improved counterbalancing of solar heat
pick-up by the premises to be air conditioned.
Description
Le calcul du point de consigne de régulation CONSREG se fait en fonction des paramètres suivants :
TEA ó Outside air temperature (°C)
CONSA ó 1st reference air temperature selected (°C)
CONSAM ó 2nd reference air temperature selected (°C)
TEGI ó Minimum chilled water temperature instruction (°C)
CONSEG ó Required water instruction for air instruction CONSA (°C)
(CONSEG must be lower than +15°C).
CONSEI ó Required water instruction for air instruction CONSAM (°C)
(CONSEI must be greater than TEGI+2°C).
PENTEF ó Regulation gradient (%)
The gradient is calculated using the following equation:
PENTEF = 100 x ( CONSEI - CONSEG ) / ( CONSAM - CONSA )
CONSREG = CONSEG + PENTEF x ( TEA - CONSA ) / 100
Example of regulation :
With CONSA = 20°C
CONSEG = 10°C
CONSAM = 35°C
CONSEI = 6°C
⇒ PENTEF = -26.7 %
TEA
(°C)
CONSREG
(°C)
20 10
25 8,66
30 7,33
35 6
CONSREG
CONSA
TEA
CONSEG
TEGI+2°C
PENTEF
CONSAM
CONSEI

Lennox CLIMATIC II Specifications

General

Brand	Lennox
Model	CLIMATIC II
Category	Control Unit
Language	English