21
TWITE INSTRUMENTS
THERMOSTAT MODEL TD-196 OPERATING MANUAL
SETTING FUNCTIONS CONT.
8.
SET DEFROSTS.
1)
Sets the time that the defrost solenoid is to be on during an automatic
(timed)
defrost from 1 to 60 minutes in 1 minute steps.
2)
Sets the time that the defrost solenoid is to be on during a manual defrost from 1
to 120 minutes in 1 minute steps.
3)
Sets the defrost solenoid turn on delay after the refrigeration solenoid turns off
from 0 to 60 minutes in 1 minute steps.
4)
Sets whether the fans and the suction solenoid is to be on or off
(YES - NO)
for
the first delay. This allows the pumping out of the Evaporator.
5)
Sets the refrigeration and suction solenoids turn on delay after the defrost
solenoid turns off from 0 to 10 minutes in 1 minute steps.
6)
Sets the fans solenoid turn on delay after the refrigeration and suction solenoids
turns on from 0 to 10 minutes in 1 minute steps.
7)
Holds alarms & maximum/minimum from updating from 0 to 30 minutes.
8)
Sets the start time of the first Defrost in a 24 hour day.
(up to 8 defrost times
can be set in any one day)
. The first defrost start time must be the first time
required after 00:00
(12 midnight).
The unit will not allow subsequent start times
to be set earlier than the previously set start time. If a time has been set for a
defrost to start before the previous defrost has finished
(including the alarm hold
off time)
that defrost time will be missed. There must be at least one minute
between the finish of one defrost
(including the hold off time)
until the start of
the next defrost. If less than 8 defrosts are required in one 24 hour period, set
the unused start times to the last defrost start time. If no automatic Defrosts are
required see DEFROST AUTO ON OFF.
