172-65605M-14 (SQ2/SQ4/SQ6) 10 Dec 2019
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If the water flow rate stabilizes quickly, the alarm delay time will be reduced.
However, if using the unit at or around the minimum flow rate, the unit may
repeatedly start and stop operation. Consult TLV if this situation applies.
(6) Water temperature:
The difference between the target temperature and the water temperature
is normally
±
1
°
C, depending on the operating conditions.
When the temperature difference is 3
°
C or more, or when the water
temperature fluctuates, it is likely that the water flow rate is also fluctuating
greatly or is below/around the controllable flow rate. In such cases,
contact the facility manager.
(7) Checking the water flow rate:
The current water flow rate can be verified in the
flow sensor (No. 7) present value on the
parameter settings screen (2) in the touch panel.
(8) Operational check of the flow sensor:
It is possible to confirm whether the flow sensor
is operating (switching) normally by checking the
following items when water is supplied to the unit at a flow rate that
exceeds the set flow rate of the flow sensor:
a)
The flow sensor present value exceeds
the flow sensor set value on the
parameter settings screen (2) in the
touch panel, or
b)
The flow rate is displayed in the touch
panel.
The flow rate of the flow sensor set at the
factory will be a stable and controllable
water amount value as stated in the 'product specification document'.
However, when the commissioning is conducted by TLV, the flow rate
may be adjusted according to the operation conditions of the user.
(9) Adjusting the set temperature
Touch the "Set Temperature Adjustment"
button on the touch panel, and using the
keyboard panel, input the desired
temperature.
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 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.
When the temperature is set outside the capability range shown below,
the temperature may not reach the target temperature or the temperature
may fluctuate. In such cases, contact the facility manager.
Flow rate
display
