Lennox ROOFTOP FLEXY FCA Series Installation Operating & Maintenance Manual page 61

Inversion by
setpoint 60
100%
Œ
Cp4
75%

50%
Ž
25%

0%
Differential in heating
setpoint 55
Œ
: Gas 2 + Gas 1

: Gas 2 + 1/2 Gas 1
Ž
: Gas 1

: 1/2 Gas 1
Inversion by
setpoint 59
3-way valve or
water coil
Cp3
Cp2
Cp1
Heating
setpoint 16
Hysteresis in heating
setpoint 55
Inertia
zone
Damper
3-way valve
Min. fresh
air
Air conditioning
setpoint 15
Cp1...Cp4
: Compressor no. 1...4
Inversion by
setpoint 58
Cp4
Cp3
Cp2
Cp1
Hysteresis in air cond.
Differential in air cond.
setpoint 56
setpoint 57