Hired-Hand ICS-500 Environmental Controller - Manual (Page 6)

Integrated Control System 500 4
6.1.2. Controls
6.1.2.1. Front Panel
The following controls are located on the outside of the panel.
6.1.2.1.1.Automatic/Manual
The automatic/manual switch is used as its name implies. The
Automatic position allows the controller to move the curtains to
control temperature. When the switch is in the manual position, the
controller will still operate the stages to control temperature, but the
curtain can only be moved using the open/close/off switch.
6.1.2.1.2.Open/ Close/Off
The open close off switch is used for manual control of the curtains.
This switch is only operable when the automatic/manual switch is in
the manual position. At other times, this switch is not operable, thus
its position is not significant. However, it is a good practice to always
leave the switch in the off position.
The “OPEN” position of the switch allows current to flow to the PVR-
H, allowing power to the “open” windings of the curtain machine. The
“CLOSE” position of the switch allows current to flow to the PVR-H,
allowing power to the “close” windings of the curtain machine. The
“OFF” position does not allow current to the PVR-H, but is not a safe
electrical disconnect for the curtain machine.