Hired-Hand System 100 Variable Speed Controller - Manual (Page 3)

System 100 Variable Speed Controller System 100 Variable Speed Controller
Users Manual
Introduction
With the purchase of your new Controller you have taken a step forward into the world of
computerized climate control. The Hired Hand System 100 Variable Speed Controller offers the user a
simple, low maintenance method of ventilation control.
The Controller is available in two models: One is a simple variable speed; the other has an additional
3 stages--1 heat and 2 cools.
Basic Operation
The System 100 Variable speed controller is designed as a standalone unit with the capability to
supply a constant 10 amps to a load. Day-to-day operation of the system only involves changing the
target temperature setting on the facepad.
The user is given 2 choices of programs for the stages. Program 'A' is geared for a tight environmental
control while Program 'B' is designed to lower energy bills while still maintaining an acceptable
environment. Program 'B' uses a slightly wider band of temperatures that satisfies the controller.
Controls
External Controls
The System 100 has only one external control. This is a knob on the facepad that changes the system's
Target Temperature. Target temperature is the basis for all operations of the controller. The stages
operate on target temperature by the offset--differential method, and the Variable Speed fan will run at
minimum speed when the temperature sensed by the controller is at or below target temperature.