Chore-Time Chore-Tronics 3 Control, Инструкция по установке и эксплуатации, Страница: 58 / 142

Control Setup Chore-Tronics® 3 Control
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MT2398C
Static Pressure
The Static Pressure screen indicates the current static pressure plus provides the fields that can be edited
to set the Static Pressure Control limits and the wind delay. The open and close Inlet Relays respond as
required to keep the static pressure within the Control limits while in the Power Mode and the open and
close Tunnel Curtain Relays do the same to control the static pressure during the Tunnel Mode. If it is not
desired to control the static pressure during the Tunnel Mode, the high control limit in the Tunnel Mode
must be edited to be .00. Static Pressure Control w/ Tunnel Curtain during Power Mode-If in the Power
Mode, there is inadequate inlet area to keep the static pressure within the high control limits, the Tunnel
Curtain will open to give additional air inlet area. The Inlets are given continuous open signals as the
Tunnel Curtain takes over the responsibility of controlling the static pressure. The static pressure has to
be above the high Static Pressure Control limit continuously for one minute with 3 or more Fans running
for this to happen. Responsibility for Static Pressure Control is passed back to the Inlets as soon as there
are fewer than 3 Fans running or the Tunnel Curtain cannot bring the static pressure back into the control
range (while closing) from the low side. The static pressure has to be below the low Static Pressure
Control limit continuously for one minute for this to happen.
1. Select the Main menu button. Select the Ventila-
tion Settings button.
2. Select the Static Pressure button.
3. Current Static Pressure - The amount of static pres-
sure currently measured by the Control.
4. Current Static Pressure Limits - The Current SP Lim-
its are the current high and low limit settings the Control
is using to control the inlets or tunnel curtain.
5. Static Pressure Control Limits - The Static Pressure Control limits are the values of static pressure
the Control attempts to maintain by using the powered Inlets, the Tunnel Curtain, or both. A second
level of Power Mode static pressure can be chosen in the (Setup/Analog Inputs/Static Pressure) screen
in the Control tab. The temperature at which
the second static pressure takes over is entered
in the (Output/Temperature) screen. The Tem-
perature Sensor(s), (Inside Only), that measure
that temperature is defined in the (Setup/Ana-
log Inputs/Static Pressure) screen.
6. Fixed Inlet Anticipation - Fixed Inlet Antic-
ipation is the amount of time the inlets will
open prior to the fans assigned to the Minimum
Ventilation timer turn on. Fixed inlet anticipa-
tion must be selected from the (Setup/Analog
Inputs/Static Pressure) screen in the Control
tab.
7. Wind Delay - The wind delay is the amount of time the static pressure has to be continuously outside of the
Control limits before the appropriate open or close Relay will be energized to bring the static pressure back
within the control limits. The wind delay is bypassed if a Fan or Fans turning on or off is what causes the static
pressure to move outside the Static Pressure Control limits
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