acutherm THERMA-FUSER EL Manual page 13

START
IS SYSTEM IN IS 30 MIN.
Y
COOLING? TIMER SET?
N
N
MORE THAN HALF
ROOM TEMPS <
SETPT?
N
COOL ON
IS 30 MIN.
TIMER SET?
N
MORE THAN
HEAT OFF
HALF ROOM
Y SET THE 30 MIN. TIMER
TEMPS >
SET THE 30 SEC. TIMER
SETPT
N
HEAT ON
Flow Chart For AHU Controller
(Occupied Mode)
WE RECOMMEND A 30
MIN. TIME DELAY
BETWEEN MODES
(COOLING & HEATING)
Y
COOLING OFF
Y SET THE 30 MIN.TIMER
SET THE 30 SEC. TIMER
HAS THE 30
Y SEC TIMER
EXPIRED?
N
REVIEW ROOM SET PTS
EVERY 30 SECS WHEN IN
RECIRCULATION
MORE THAN
HAS 30 SEC
HALF ROOM
TIMER Y
TEMPS >
EXPIRED?
SETPT?
N
N
HAS IT BEEN
30 MINS.?
N
RESET THE 30
SEC TIMER
MORE THAN
HALF ROOM PUT SYSTEM IN
Y Y
TEMPS < HEATING MODE
SETPT?
N
HAS THE 30
PUT SYSTEM IN
MIN. TIMER Y
COOLING MODE
EXPIRED?
N
RESET THE 30
SEC TIMER
PUT SYSTEM IN
Y COOLING MODE
PUT SYSTEM IN
Y
HEATING MODE
CLEAR ALL
TIMERS
TO MAIN
FLOW
CHART
CLEAR ALL
TIMERS
13