172-65605M-14 (SQ2/SQ4/SQ6) 10 Dec 2019
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(6) Adjusting the set temperature
Touch the "Set Temperature Adjustment"
button on the touch panel, and using the
keyboard panel, input the desired
temperature. (The temperature can be set up
to 95
°
C.)
Adjustment of the target temperature should
be carried out when the water flow rate is
stable or when operation is stopped.
Do not drastically reduce the set temperature from a high temperature to a
lower temperature when using hot water continuously while the unit is in
operation.
Even after the upper limit alarm delay time (factory setting: 10 seconds)
has expired, any temperature difference that exceeds the upper limit set
temperature alarm value (factory setting: 10
°
C) will cause the high
temperature alarm to be triggered, causing the unit to immediately stop
operation.
Even if the target temperature is set within the operational range (30 to 95
°
C), the temperature may be outside the capability range shown below
depending on the temperature and flow rate conditions. In such cases,
consult the facility manager, as it may be necessary to adjust other
parameters such as the water flow rate.
SQ2: 20 to 250 kW
SQ4: 60 to 700 kW
SQ6: 100 to 950 kW
(7) External input of the target temperature
Refer to the "Touch Panel Display" section to adjust the target
temperature.
Do not switch the input mode to set the temperature while the unit is in
operation.
4 to 20 mA signal
Adjust the output range so that the input signal has the following settings.
4 mA = 0
°
C • 20 mA = 100
°
C
NOTE: Depending on the external environment, discrepancies may occur in the
relationship between the current value and the set temperature value.
Do not change the temperature settings without contacting the user
when washing hands, using a shower or cleaning. Failure to do so
may result in burns to the user.
CAUTION
