172-65627M-09 (SQ10) 18 Oct 2021
25
Operation Flow
NOTE: For component names and numbers, refer to the unit/control panel configuration
sections.
Descriptions
On
ON
Flow sensor (7)
Operates according to the
set controllable flow rate.
Factory setting described in
the ‘product specification
documen
t’.
START
button
Operation stopped
・
Cooling unit: OFF
・
Steam supply unit: OFF
Is the flow sensor (7) on?
(Is water flowing?)
Is high temp. alarm AL1
off?
Is internal timer T1 on?
(Has the set time passed?)
[Factory setting: 5 secs]
Heating operation
・
Cooling unit: OFF
・
Steam supply unit: ON
Is internal timer T2 on?
(Has the set time passed?)
[Factory setting: 2 mins]
Cooling operation
・
Cooling unit: ON
・
Steam supply unit: OFF
Set temp. reached,
maintain operation
・
Cooling unit: OFF
・
Steam supply unit: ON
Is low temp. alarm AL2
off?
Cooling operation
・
Cooling unit: ON
・
Steam supply unit: OFF
STOP
button
Standby
・
Cooling unit: OFF
・
Steam supply unit: OFF
High temp. alarm is
triggered
(The temp. exceeds the
set value for longer than
the alarm delay time.)
Cooling circulation unit
Cools hot water inside the
heat exchanger by
circulating cold water
(stored before the heat
exchanger), either at startup
or when the high temp.
alarm is triggered.
Cooling unit: ON
・
Circulating pump (OP6):
In operation
・
Solenoid valve (OP7): Open
Cooling unit: OFF
・
Circulating pump (OP6):
Stopped
・
Solenoid valve (OP7):
Closed
Steam supply unit
Supplies and controls steam
to the heat exchanger to
keep the outlet temp. at the
specified temp.
Steam supply unit: ON
・
Motorized valve (12): Open
・
Control valve (11): Open
(during control)
Steam supply unit: OFF
・
Motorized valve (12):
Closed
・
Control valve (11): Closed
AL2: Low temperature
alarm
Triggered when outlet water
temperature is lower than
set temperature.
Factory setting:
10
C below set temp.
AL1: High temperature
alarm
Triggered when outlet water
temperature is higher than
set temperature.
Factory setting:
10
C above set temp.
Internal timer T2
Time required to cool hot
water generated by steam
leakage that may occur
when stopping operation.
Internal timer T1
Time required for unstable
flow to be resolved when
water first flows through the
unit.
Low temp. alarm is
triggered
(The temp. has not
reached the ‘low temp.
alarm’ temp. within 2 mins
of startup,
or
the temp.
falls below the set temp.
for longer than the alarm
delay time)
No
No
No
No
Yes
OFF
Yes
On
NOTE:
For
the ‘Control Panel for Connection
to
Circulating Pump’ option,
circulating pump operation is started.
Stopping (30 seconds)
・
Cooling unit: ON
・
Steam supply unit: OFF
Yes
Yes
Yes
NOTE:
For
the ‘Control Panel for
Connection to Circulating
Pump’ option, circulating
pump operation is stopped.
