Phason Three Ventilation Stage Control, Руководство пользователя

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TVS user manual Phason
TVS operation
Figure 2 shows the operation of each stage of the TVS. This particular diagram shows the temperatures at
which the stages would turn on and off if the TVS was operating according to the factory settings in
program A. Some settings are listed here but the entire factory program table can be found on page 20.
The circled numbers in the diagram correspond to the parameter numbers. Use these numbers to cross
reference the parameters in the diagram to their descriptions. All stages except the low temperature and
high temperature alarms have a programmable hysteresis, parameter # 23.
PARAMETER SETTINGS
1 Temp Set
85.0
o
F
2 Stage 1 Min Vent 20%
3 Stage 2 Min Vent 20%
4 Stage 1 OSB
-3.0
5 Stage 1 P-Band1 2.0
6 Stage 2 OSB 0.0
7 Stage 2 Start P-Band2 2.0
8 Stage 2 P-Band 2.0
9 Stage 3 Turn On 5.0
12 Low Temp Alarm
-3.0
13 High Temp Alarm 10.0
NOTE: When the variable speed stages turn on, they will run full speed for three seconds and then
decrease to the required speed.
EXAMPLE
As an example, say the temperature is 75
o
F and rising. At this point the Low Temp Alarm will be on.
When the temperature rises to 82
o
F, the Low Temp Alarm will turn off and the Stage 1 fan will turn on.
The Stage 1 fan will run at full speed for three seconds and then slow down to the Minimum Ventilation
setting.
At 85
o
F the Stage 1 P-Band begins. While the temperature rises in the P-Band, the Stage 1 fan will
increase in speed. At 87
o
F Stage 1 will be at full speed.
When the temperature rises to 88
o
F the Stage 2 P-Band begins. Since the Stage 2 fan has been off until
now, it will run full speed for three seconds and then slow down to the required speed. As the temperature
rises, the Stage 2 fan will increase in speed proportionally to the temperature. At 90
o
F the Stage 2 fan will
be at full speed.
At 90
o
F Stage 3 (cool) will turn on.
When the temperature rises to 95
o
F the High Temp Alarm will turn on.
14 2009-09-15