12
CONTROL SEQUENCE 2101 (Cooling Only)
1. Be certain the ambient room temperature is within the
range of the thermostat (55 to 85 F).
2. Adjust the cooling set point slider all the way to the right
for minimum cooling.
3. Read the DC voltage across the meter taps on the cooling
(right) side. Adjust the minimum set point (MIN INCR)
potentiometer (clockwise to increase or counterclockwise
to decrease) to the DC voltage equal to the desired air-
flow (cfm) as shown on the calibration curve.
NOTE: The minimum set point must be adjusted
first
. Adjust-
ment of the MIN INCR potentiometer directly affects the max-
imum set point.
4. Adjust the cooling set point slider all the way to the left
for maximum cooling.
5. Read the DC voltage across the meter taps on the cooling
(right) side. Adjust the maximum set point (MAX INCR)
potentiometer (clockwise to increase or counterclockwise
to decrease) to the DC voltage equal to the desired air-
flow (cfm) as shown on the calibration curve.
NOTE: The maximum set point must be adjusted
last
. Adjust-
ment of the MIN INCR potentiometer directly affects the max-
imum set point.
6. Return the cooling set point slider to the desired set point.
Insert set point slider stops. Replace thermostat cover.
CONTROL SEQUENCE 2102 (Cooling with On/Off Elec-
tric Heat Control)
Cooling Side of the Thermostat
1. Follow steps 1 through 5 for cooling sequence 2101.
NOTE: Be sure to adjust the cooling set point slider all the way
to the left for maximum cooling. (The heating set point slider
will have to be adjusted all the way to the left also.)
NOTE: The minimum set point must be adjusted
first
. Adjust-
ment of the MIN INCR potentiometer directly affects the max-
imum set point and auxiliary set point.
2. Adjustment of auxiliary set point if required:
Read the DC voltage across the meter taps on the heating
(left) side. Adjust the MAX/AUX INCR potentiometer
(clockwise to increase or counterclockwise to decrease)
to the DC voltage equal to the desired airflow (cfm).
3. Return the cooling set point slider and the heating set
point slider to their desired set points. Insert or reinsert set
point slider stops. Replace thermostat cover.
CONTROL SEQUENCE 2104 (Cooling/Heating with
Automatic Changeover Control)
Cooling Side of the Thermostat — Follow steps 1 through 5
for cooling sequence 2101.
NOTE: Be sure to adjust the cooling set point slider all the way
to the left for maximum cooling. (The heating set point slider
will have to be adjusted all the way to the left also.)
CONTROL SEQUENCE 2103 (Cooling with On/Off Hot
Water Heat Control) OR 2105 (Cooling with Proportional
Hot Water Heat Control)
Cooling Side of the Thermostat — Follow steps 1 through 5
for cooling sequence 2101.
NOTE: Be sure to adjust the cooling set point slider all the way
to the left for maximum cooling. (The heating set point slider
will have to be adjusted all the way to the left also.)
NOTE: The minimum set point must be adjusted
first
. Adjust-
ment of the MIN INCR potentiometer directly affects the max-
imum set point and auxiliary set point.
10000
8000
6000
4000
2000
1000
800
600
400
200
100
80
60
40
20
10
710
522
362
232
2086
1449
1174
927
3709
2840
7250
CFM
CFM
A
T
ONE
INCH
SIGNAL
SIZE
4
SIZE
5
SIZE
6
SIZE
7
SIZE
8
SIZE
9
SIZE
10
SIZE
12
SIZE
14
SIZE
16
SIZE
22
1.2
1.8
2.3
3.4
4.6
5.8
7.2
9.7 11
DIFFERENTIAL
PRESSURE
.02
.04
.06
0.1
0.2
0.3
0.5
0.8 1
VOLTS
Fig. 14 — Calibration Curve 35E
