LTV 1200 Operator's Manual - AARC.org

Setting a Control
There are 5 kinds of controls on the LTV ® 1200 / 1150 ventilator. They are:
Variable Controls
Buttons
Set Value Knob
Extended Features
Mechanical Controls
Controls and alarms that have front panel displays.
Push buttons that select an option or perform a function.
Used to set control values and navigate extended features
menus.
Ventilation options that do not have front panel controls but are
available through a special menu.
Controls, such as Over Pressure Relief, that are hardware
regulated and not operator adjustable.
The following sections describe how to set each kind of control.
Variable Controls
To set a variable control:
1) Select the control by pushing the associated button. The display for the selected control will be
displayed at normal brightness, but the remaining control displays will dim.
2) Change the control value by rotating the Set Value knob. Rotate clockwise to increase and
counter-clockwise to decrease the value. Turning the control knob slowly will change the setting
by a small increment. Turning the control knob more quickly will change the setting by a larger
increment.
3) Deselect the control by:
Waiting 5 seconds, or
Pushing the selected button again, or
Selecting another control, or
Pushing the Control Lock button
When the control is deselected, all displays will return to their normal brightness. The new control
value goes into effect as soon as the control is deselected.
Operator’s Manual LTV ® 1200 / 1150 Ventilators Page 5-3
P/N 19802-001 Rev. F