American Standard UV05 User's Manual | Page 13

American Standard Air Conditioners User's Manual - UV05.
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McQuay OM 751

13

Description of Operation

Figure 6: Complete UVC—state diagram

UVC Unit Modes
The UVC provides several “normal” modes of unit operation. These include: Off, Night 
Purge, Fan Only, Cool, Emergency Heat, Auto, Heat, and Cool.

Normal UVC modes can contain a single state or several states depending upon the 
functionality required for each particular mode. Each UVC state is assigned a number, which 
can be very helpful when trying to understand which state is currently active within the UVC. 
To view the current UVC state number, use the keypad/display.

EmergencyHeat

ModeSuperState

FullHeat

CantHeat

Heat

LowLimit

7

D

5

E

FanOnly

A

NightPurge

8

Off

9

HeatMode

SuperState

AutoMode

Econ

EconMech

Mech

3

1

2

CantCool

C

DAHeat

LowLimit

4

F

CoolMode

SuperState

CantHeat

B

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