Lennox FLEXY FC 050 Series

Page 56 - IOM / ROOF-TOP FLEXY™ Series
REGULATION OF SUPPLY AIR
Supplying air regulation should be activated by setting
set point 58 to ON.
The main aim of supplying air regulation is to maintain
the temperature of supplied air at a value close to the
average of the neutral zone, if ambient air regulation is
not active.
Two power factors, one for cooling (Variable 119), and
the other for heating (Variable 118), are calculated
according to the difference in temperature between the
set point and the reference temperature.
The power factors are periodically recalculated by the
CLIMATIC™. The integration time (set point 59) is
adjustable
ORDER OF COMPONENTS IN REGULA-
TION
Cooling operation
Set point 60 =Off
Damper è Water coil è Compressors
Set point 60 =On
Damper è Compressors è Water coil
Heating operation
Set point 61 =Off
Water coil or electric coil è Compressors è Gas
Set point 61 =On
Compressors è Gas è Water coil or electric coil
Set point 62 =Off
Water coil or electric coil è Gas è Compressors
Set point 62 =On
Water coil or electric coil è Compressors è Gas
BLOWING REGULATION BY AIR
DAMPER
Regulation of air supplying by the air damper must be
activated by setting set point 63 to ON.
The aim of air supplying regulation by the air damper
is to even out the temperature of supplied air to a value
close to the average of the neutral zone.
This function is not taken into account if blowing
regulation is active.
A power factor (Variable 'R_Supply_Damper') is
calculated according to difference in temperature
between the set point and the ambient and outside
temperatures.
CLIMACLIMA
CLIMACLIMA
CLIMA
TIC™ PTIC™ P
TIC™ PTIC™ P
TIC™ P
ARAR
ARAR
AR
AMETERSAMETERS
AMETERSAMETERS
AMETERS
The progression of the power factor is limited by the
maximum percentage of fresh air (set point 75) if the
outside temperature is less than the minimum outside
air temperature (set point 73).
The power factor is recalculated periodically by the
CLIMATIC™. The integration time is adjustable (set
point 59).
REGULATION IN HYGROMETRY.
Two power factors, one for dehumidifying (Variable
123), the other for humidifying (Variable 122), are
calculated according to the difference in relative
hygrometry between the set point and the reference
relative hygrometry.
The power factors are recalculated periodically by the
CLIMATIC™. The integration time is adjustable (set
point 64).