CEMP-E
TI 810-11
30 November 1998
55-90 kPa (8-13 PSIG)
RET AIR
SPRING RANGE
NO
DA
H
OA
NC
C
RETURN
TT
TC
SPRING RANGE
28-55 kPa
55-90 kPa (8-13 PSIG)
(4-8 PSIG)
SPRING RANGE
OTHER CONTROL-
SUPPLY
LOOP DEVICES
NO
DA
VLV
END OF VALVE
NOMINAL DAMPER RANGE
OUTPUT
RANGE
NOMINAL VALVE RANGE
TEMP
START OF
SIMULTANEOUS HEATING
DAMPER RANGE
AND COOLING WHENEVER
CONTROLLER OUTPUT IS
IN THIS RANGE
ACTUAL DAMPER RANGE
OUTPUT
OVERLAP OF VALVE AND DAMPER RANGE
ACTUAL VALVE RANGE
TEMP
Figure 2-3. Simultaneous heating and cooling with pneumatic actuators without positive positioners.
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