Table of Contents
Advertisement
Water Bed Heater System
TEST AND SERVICE window
The Test and Service window allows many parameters to be entered which are not
useful to the user. However, the window does allow the user to see the two parameters
which the control software is setting "flow command" and "PWM count".
The "flow command" is proportional to the hot water flow. Total flow is proportional to
the "Calculated Total Flow" value shown on the left of the window. As the system
adjusts the hot flow, the cold flow is changed to keep total flow constant.
The "PWM count" is proportional to the current delivered to the water heater. PWM
count is between 0 and 1024. PWM of 0 turns the heater off. PWM of 1024 delivers
maximum current to the heater.
Revision C, August 2013
19-3
Advertisement
Table of Contents
