Calibration - Trane Voyager Commercial Installation, Operation And Maintenance Manual

applied linearly across the sensing range of the airflow
sensor which may produce inaccuracies at airflow
levels not close to the value at which the calibration
adjustment was made.
Sequence for Setting Calibration
• If unit is configured with DCV, disconnect CO
sensor prior to powering unit. After calibration
remove power from unit and reconnect CO
• Adjust the Design Minimum OA Flow Setpoint
potentiometer (R130/R41) on the RTVM to your
desired flow rate for minimum ventilation (See
Table 29, p. 51).
• Initiate service test and step to the minimum
ventilation step. This will set the unit into a constant
ID fan speed and OA damper request to minimum
position. Minimum position will be from the Traq
calculation to maintain the OA flow at the setpoint.
• Allow the damper position to settle to the desired
flow rate set by the setpoint.
• Measure the OA flow rate via an air balancing
instrument.
• Adjust the OA flow adjustment setpoint
potentiometer (R136) clockwise or counter-
clockwise to "dial in" the flow to match the
instrument in (See Table 30, p.
Table 29. Design minimum OA flow setpoint
Design Min OA Flow
Setpoint (R130)
Airflow CFM
1000
1100
1200
1300
1400
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
3100
3200
3300
3400
3500
3600
3700
RT-SVX34R-EN
2
sensor.
2
52).
DCV Min OA Flow Voltage
Setpoint (R41) Reading
Voltage Vdc
Airflow CFM
1000
1100 0.22
1200 0.24
1300 0.26
1400 0.28
1500
1600 0.32
1700 0.34
1800 0.36
1900 0.38
2000
2100 0.42
2200 0.44
2300 0.46
2400 0.48
2500
2600 0.52
2700 0.54
2800 0.56
2900 0.58
3000
3100 0.62
3200 0.64
3300 0.66
3400 0.68
3500
3600 0.72
3700 0.74
Table 29. Design minimum OA flow setpoint
(continued)
Design Min OA Flow
Setpoint (R130)
Airflow CFM
3800
3900
4000
4100
4200
4300
4400
4500
4600
4700
4800
4900
5000
5100
5200
5300
5400
5500
5600
5700
5800
5900
6000
6100
6200
6300
6400
6500
6600
6700
6800
0.2
6900
7000
7100
7200
7300
0.3
7400
7500
7600
7700
7800
0.4
7900
8000
8100
8200
8300
0.5
8400
8500
8600
8700
8800
0.6
8900
9000
9100
9200
9300
0.7
9400
9500
9600
S S t t a a r r t t u u p p
DCV Min OA Flow Voltage
Setpoint (R41) Reading
Voltage Vdc
Airflow CFM
3800 0.76
3900 0.78
4000
4100 0.82
4200 0.84
4300 0.86
4400 0.88
4500
4600 0.92
4700 0.94
4800 0.96
4900 0.98
5000
5100 1.01
5200 1.02
5300 1.03
5400 1.04
5500 1.05
5600 1.06
5700 1.07
5800 1.08
5900 1.09
6000
6100 1.11
6200 1.12
6300 1.13
6400 1.15
6500 1.17
6600 1.18
6700 1.19
6800
6900 1.22
7000 1.23
7100 1.24
7200 1.25
7300 1.26
7400 1.27
7500 1.28
7600 1.29
7700
7800 1.31
7900 1.32
8000 1.34
8100 1.36
8200 1.38
8300 1.39
8400
8500 1.41
8600 1.42
8700 1.43
8800 1.44
8900 1.45
9000 1.46
9100 1.47
9200 1.48
9300
9400 1.52
9500 1.53
9600 1.54
0.8
0.9
1
1.1
1.2
1.3
1.4
1.5
51