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Temperature Setting
The inside circuit board contains two screwdriver switches marked Ø through 7. Adjust them to select the
desired set point for your application.
EX: Ideal set point = 86°
Mode Dial would be set to #4
Warm Air Dial would be set to #0
NOTE: MODE DIAL setting # 7 is not applicable to this product
Mode Dial Temperature Range Options
WARM AIR DIAL
0
0
‐10
1
‐7
2
‐4
3
‐1
4
2
5
5
6
8
7
11
Monitor Lights
The green LED on the circuit board indicates power at the electric element or modulation of the electric
element. For example, when the LED is on, full power is at the electric element.
Sequence
A. Electric element is on for 10 seconds after the application of 24 volts AC between yellow and black
wire.
B. Electric element turns off if the temperature is above the warm air set point.
C. If the temperature drops below warm air set point, the electric element modulates to bring it back to
the desired temperature level.
D. If the electric element is fully on (LED on constant) this unit cannot make up the air temperature
required between the duct inlet air and the temperature set point at the sensor probe.
04/27/2021
MODE DIAL
1
2
3
14
38
62
17
41
65
20
44
68
23
47
71
26
50
74
29
53
77
32
56
80
35
59
83
3
4
5
86
110
134
89
113
137
92
116
140
95
119
140
98
122
140
101
125
140
104
128
140
107
131
140
6
7
MUA II
EI912
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