Figure 2-12. Simple Control Loop Applied To Outside Air Heating.

Figure 2-11. Two-position control.

Figure 2-13. Proportional Control Mode.

Heating, Ventilating, and Air Conditioning (HVAC) Control Systems - index
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CEMP-E

TI 810-11

30 November 1998

TC

PI

DIR

IP

PI

M

VLV

M

TT

HWR

NO

HWS

AIR TO

P

OUTSIDE

HVAC

AIR

C

SYSTEM

Figure 2-12. Simple control loop applied to outside air heating.

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