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6-30
l Tr o u b l e s h o o t i n g
Poor Material Dr ying
Troubleshooting
(continued)
Once it is determined which of the four requirements that is not being satisfied,
refer to the following list of possible causes and solutions.
NOTE:
Concerns with drying temperature may require review of HTC or GasTrac controls.
Temperature
- The temperature of the air entering the hopper must be at the prop-
er drying temperature for your material, as specified by your supplier.
Problem
The temperature of the air
entering the hopper is not at
proper drying temperature.
Possible cause
Incorrect setpoint
Not able to achieve setpoint.
Inaccurate process temperature readout.
Solution
Refer to the drying specifications for
your material and adjust the setpoint to
the recommended setpoint.
If your dryer has the Setback option,
make sure it is not active unless you
have specifically activated it. If neces-
sary, refer to the Operation section of
this manual for assistance in using the
Setback function.
Replace any defective process heater,
contactors, fuses, etc.
Ensure the selected drying temperature
is within the design specifications of
your dryer.
Ensure the Process RTD is properly
positioned in the air stream.
Determine if there is a problem in the
temperature control circuit and repair or
replace any defective components such
as RTD, temperature control, circuit
boards, etc.
✐
Summary of Contents for HTC 120
Page 10: ...viii l Table of Contents ...
Page 30: ...2 14 l Description ...
Page 35: ...Installation General Installation General l 3 5 3 I n s t a l l a t i o n ...
Page 65: ...Installation Hard Piping Kits Installation Piping Hoses l 3 35 3 I n s t a l l a t i o n ...
Page 80: ...3 50 l Installation Piping Hoses ...
Page 88: ...3 58 l Installation Piping Hoses ...
Page 92: ...3 62 l Installation Conveying Lines ...
Page 93: ...Installation Water Lines 3 I n s t a l l a t i o n Installation Water Lines l 3 63 ...
Page 124: ...3 94 l Installation Gas Piping and Exhaust Flue ...
Page 125: ...Installation Testing 3 I n s t a l l a t i o n Installation Testing l 3 95 ...
Page 250: ...4 108 l Operation ...
Page 286: ...5 36 l Maintenance ...