Conair Hopper Temperature Controller UGD031 User Manual
Page 4
Location and mounting of the HTC heater assembly
models 180 and 270. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
Connecting the HTC heater assembly to the dryer or blower
and hopper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-6
Installing the isolation valves. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-7
Connecting the power on models HTC 180 and 270 . . . . . . . . . . . . 3-8
Connecting the control wires on models HTC 180 and 270 . . . . . . 3-10
Connecting the RTD sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-11
Testing the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15
4-1
O p e r a t i o n
The HTC process air heater: control panel DC . . . . . . . . . . . . . . . . . 4-2
HTC DC control functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Control function flow charts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
Control function descriptions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-6
HTC DC control alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-19
Initial operation (for HAD only). . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-20
Initial operation (for Carousel Plus dryer HTC) . . . . . . . . . . . . . . . . 4-21
Autotuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-22
Normal operation to start heating . . . . . . . . . . . . . . . . . . . . . . . . . 4-24
Normal operation to stop heating . . . . . . . . . . . . . . . . . . . . . . . . . 4-25
5-1
M a i n t e n a n c e
Preventative maintenance schedule . . . . . . . . . . . . . . . . . . . . . . . . 5-2
6-1
Tr o u b l e s h o o t i n g
Before beginning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-2
A few words of caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-3
i i
l Ta b l e o f C o n t e n t s