Carrier C708 - Timers

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Controls, Systems and Operations
Models C708/C709/C716/C717
Timers
Two Minute Stir Cycle
If the machine is in the STANDBY mode, the beater
motor will turn on for six seconds every two minutes
when the Standby Temp setpoint 26.5°F (-4°C) is
satisfied.
If the machine is in the HEAT mode, the beater
motor continues the two minute stir cycle (see
STANDBY above) until the freezing cylinder
temperature rises above 120_F(49_C). Once this
temperature is reached the beater motor runs
continuously.
Mix Pump Timer
The mix pump will run for 30 seconds anytime the
unit is placed in the AUTO mode, but not from
STANDBY.
Mix Draw T imer
During the AUTO mode, the mix pump will run for 5 -
30 seconds every time product is drawn from the
machine. The factory setting is 10 seconds.
24 Hour Last Heat Cycle Event
If the machine runs longer than 24 hours without a
successful Heat Treatment Cycle, the machine will
soft lock.
14 Day Timer
If the machine runs longer than 14 days without a
successful brush cleaning, the machine will hard
lock.
Heat Phase Timer
The Heat Phase Timer times out the maximum
allowable time the unit can be in the Heat Phase of
the Heat Treatment Cycle (90 minutes). If the timer
exceeds 90 minutes, the unit will lock out.
Hold Phase Timer
This timer assures that product in the freezing
cylinder and the hopper are held above 150_F
(65_C) for a minimum of 35 continuous minutes.
Cool Phase Timer
The Cool Phase Timer times out the maximum
allowable time the unit can remain in the COOL
phase of the Heat Treatment Cycle (90 minutes). If
the timer exceeds 90 minutes, the unit will soft lock.
Safety Timeout
Once power is applied to the unit, a 60 second timer
places the unit in an “IDLE” state. The tone is turned
on in 0.5 second intervals, and a “Safety Timeout”
message appears on the LCD. This timer can be
aborted by pressing any key.
Brush Clean Timer
This timer times out 5 minutes when all conditions
for a successful brush cleaning are met.