Roundup DCV-200, Руководство пользователя

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11
Display Cabinet vertiCal
P/N 1011068 Rev. D 08/10
maIntenance (continued)
Display codes
this section describes the different display codes and their meanings.
TEMP
UP
TEMP
DOWN
TEMP
SCALE
F
C
O
O
TEMP
UP
TEMP
DOWN
TEMP
SCALE
F
C
O
O
TEMP
UP
TEMP
DOWN
TEMP
SCALE
F
C
O
O
TEMP
UP
TEMP
DOWN
TEMP
SCALE
F
C
O
O
TEMP
UP
TEMP
DOWN
TEMP
SCALE
F
C
O
O
“ lO ” flashes during the initial warm-up period. the unit
continues to display this code until the unit reaches the
setpoint temperature.
Once the unit reaches the setpoint temperature, it will
display it on the console. in this example, the setpoint
temperature is 150°f (66°c).
“ HI ” flashes if the actual cabinet temperature exceeds
the setpoint temperature or if the thermistor has
shorted.
nOte: the thermistor should be 100k ohm +/- 2%
at room temperature.
“ Open ” flashes if the thermistor is open or disconnected.
the unit will not call for heat.
nOte: the thermistor should be 100k ohms +/- 2%
at room temperature.
“ pO ” in 120 Vac units, this code flashes if the supply
voltage is below 100 Vac or above 135 Vac.
nOte: If voltage is within normal ranges, then the
control board is faulty.
to reset a unit in this state, the supply voltage must be
within acceptable limits and the unit must be turned off
for a few seconds and then turned back on.