Allied Air Enterprises A80UH2V - Manual (Page 32)

506471-01 Page 32 of 41 Issue 1034
Figure 35
Call for Fan
G g
50%
CALL OFF
G - Fan Switch ON
- Fan Switch OFF g
Figure 36
Single Stage Cooling
7.5 minutes
Y y
82%
100%
82%
1
min
CALL OFF
Y - Cool Demand Present
- Cool Demand Satisfied y
Figure 37
Two Stage Cooling
Y1
y1
57%
100%
CALL OFF
7.5
minutes
70%
Y1 - 1 Stage Cool Demand Present st
- Demand Satisfied 1 Stage Cool st y1
Y2 - 2 Stage Cool Demand Present nd
- 2 Demand Satisfied nd Stage Cool y2
1
min
70%
Y1 y2 / Y1
/
Y2 y1
57%
1
min
57%
Figure 33
1st Stage - 2nd Stage (W1/W2) Heat Call
W1
100%*
CALL
W2 - High Heat Demand Present
- High Heat Demand Satisfied w2
50%*
75%*
** Percentage of High Fire CFM
1
min
W1 - Heat Demand Present
- Heat Demand Satisfied w1
* Percentage of Low Fire CFM
100%**
82%**
2 min
OFF
W1/W2 w1 w2
82%*
2 min
w1
1
min
Figure 34
High Heat (W2) Call
W2
100*
82%*
2 min
CALL OFF W2 - High Heat Demand Present
- High Heat Demand Satisfied w2
* Percentage of High Fire CFM
w2