172-65605M-14 (SQ2/SQ4/SQ6) 10 Dec 2019
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(Even within the capability range described below, there are cases where
water does not reach the target temperature depending on the
temperature and flow rate conditions.)
SQ2: 20 to 250 kW
SQ4: 60 to 700 kW
SQ6: 100 to 950 kW
4. Maintaining operation
(1) Checking for leakage:
When the unit starts to supply the required water temperature, maintain
this state for 5 minutes or more.
During this time, make sure that no leakage, abnormal sounds or
vibrations are observed in each area of the steam piping or water
systems.
(2) Operating the PowerTrap:
When the PowerTrap operates, a "clunk" may be heard. This is not an
abnormal sound, because it is the sound made by the PowerTrap when
discharging and pumping the condensate.
When this operation sound cannot be heard, it is not abnormal since the
PowerTrap is operating as a normal steam trap. If the PowerTrap fails,
condensate will not be discharged properly, resulting in a gradual
decrease of the water temperature.
(3) The condensate outlet receives condensate from all discharge locations
inside the unit. Therefore, when low temperature condensate mixes with
flash steam (created by high temperature
condensate re-evaporating), a small amount of
water hammer occurs. The silencer bush (No. 2) is
installed to reduce the water hammer.
However, the sound of the water hammer cannot
be eliminated completely. It is not abnormal to
hear a small pinging sound may be heard from
around the silencer bush.
(4) When the set temperature is adjusted:
When the set temperature of the unit is adjusted within
its capacity, maintain that temperature for about 10
minutes until the water temperature becomes stable.
(5) Checking the circulating pump and solenoid valve:
Check to make sure the circulating pump is operating
properly by stopping the inflow of water during
operation.
The circulating pump and solenoid valve can be
confirmed to be operating correctly if vibration due to
water flow can be felt when touching the pump or valve
piping.
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