6-14
l Tr o u b l e s h o o t i n g
Problem
Process Temperature
Deviation
– The process tem-
perature exceeds the deviation
band as entered for the speci-
fied time. Default values are
10°F {6°C} for 5 seconds.
Process Low Temperature
–
The process temperature is
less than the low temperature
setpoint for the specified time.
Default values are 70°F
{21°C} for 20 seconds.
Possible cause
One of the solid state relays (SSRs)
failed in the closed position.
Defective process heater.
The output on the board has failed.
The process RTD is loose or has fallen
out.
The air hose connections are loose.
Precooler water is too cold, or the water
flow rate is too high.
The output on the board has failed.
Flow control solenoid is stuck open.
The process RTD is loose or has fallen
out.
Process heater has failed.
Solution
Replace the failed solid state relays
(SSRs).
Check the heater fuses and resistance
across each leg of the process heater.
Replace the board.
Check the process RTD and tighten if
needed.
Tighten all air hose connections.
Check water temperature and flow set-
tings. Adjust as necessary.
Replace the board.
Replace the valve.
Check the process RTD and tighten if
needed.
Check the heater fuses and resistance
across each leg of the process heater.
Passive Alarms
If an alarm occurs, a red dialog box is displayed on the dryer’s touch screen
control. The dryer continues to operate, but this problem could prevent cor-
rect drying of your material. The dialog box will indicate whether the alarm
is a shut down alarm or a passive alarm.
Содержание HTC 120
Страница 10: ...viii l Table of Contents ...
Страница 30: ...2 14 l Description ...
Страница 35: ...Installation General Installation General l 3 5 3 I n s t a l l a t i o n ...
Страница 65: ...Installation Hard Piping Kits Installation Piping Hoses l 3 35 3 I n s t a l l a t i o n ...
Страница 80: ...3 50 l Installation Piping Hoses ...
Страница 81: ...3 I n s t a l l a t i o n Installation Main Power Connections Installation Main Power Connections l 3 51 ...
Страница 88: ...3 58 l Installation Piping Hoses ...
Страница 89: ...3 I n s t a l l a t i o n Installation Main Power Connections l 3 59 Installation Conveying Lines ...
Страница 92: ...3 62 l Installation Conveying Lines ...
Страница 93: ...Installation Water Lines 3 I n s t a l l a t i o n Installation Water Lines l 3 63 ...
Страница 115: ...Installation Compressed Air Lines 3 I n s t a l l a t i o n Installation Compressed Air Lines l 3 85 ...
Страница 124: ...3 94 l Installation Gas Piping and Exhaust Flue ...
Страница 125: ...Installation Testing 3 I n s t a l l a t i o n Installation Testing l 3 95 ...
Страница 149: ...4 O p e r a t i o n Operation l 4 7 Control Function Flow Charts continued Operation Flow Chart 1 1A 2 3 4 continued 5 ...
Страница 152: ...Control Function Flow Charts continued Setup Flow Chart 1 1B 19 38 20 34 37 4 10 l Operation continued ...
Страница 250: ...4 108 l Operation ...
Страница 286: ...5 36 l Maintenance ...