PC-DB Curtain Controller with Timer Override Hired Hand, Inc.
PC-DB Curtain Controller with Timer Override 1. WARNINGS ........................................................................................................................................1 2. PHYSICAL DESCRIPTION ..............................................................................................................2 3. USE OF EQUIPMENT .......................................................................................................................2 4. INSTALLATION ........................
2. Physical Description 24V Override Relay Close Relay Curtain Timer Terminal Connections Open Relay The picture on the left above is the front of the controller. The picture on the right is a picture of the internals of the controller showing major components. 3. Use of Equipment This Power Curtain Controller is built for use in agricultural enclosures for temperature control. The machine will operate one PowerTrak machine in response to temperature changes.
• • The wheel on the right is the open wheel. As this wheel rotates, the tabs attached to this wheel will control the opening of the machine. The wheel on the left is the close wheel. As this wheel rotates, the tabs attached to this wheel will control the closing of the machine. 5.1.2. Setting machine runtime Tabs may be attached to the timer wheels on either side. A tab attached to the right hand side of either wheel is the “ON” tab.
The override also has a three position switch called the manual override switch. This switch allows you to manually override the controller, or to disable the override function. The switch positions are explained in the Timer Override Controls chart below: Timer Override Controls = Permanent ON Off position with trippers pushed in (Trippers pushed out will close contacts 3&4 and turn load on).
4. Close control box lid, and re-apply power. The DB in the controller name refers to the Dead-Band operation of the controller. To use the dead-band feature you must have a two stage thermostat. This thermostat is available at your Hired-Hand dealer. The dead-band is a three to four degree temperature band which satisfies the controller. Any time the temperature is inside this band, the controller will not close or open the curtain machine automatically.
4801-1208 PC-DB-with Timer Override POWER UNIT WIRE FROM 8 CONNECTOR From Black Wire On Cordset To No. 1 Pos.