24
World Leaders in Ultra-Pure Heating
www.heateflex.com
405 E. Santa Clara St., Arcadia, CA 91006-7218
O
: (626) 599-8566
F
: (626) 599-9567
Recirculation Operation:
The status of the Aquarius
D.I. Water Heating System with Recirculation is
indicated on the System Status screen of the user interface. To access the
Recirculation sub-menu, press the Recirculation key (∞). The Recirculation key is
located at the bottom left of the System Status screen. The three different modes of
the Recirculation System are illustrated by a series of labels and/or illuminated green
indicating lights. These three modes are:
1. Demand:
-This is the default mode of the system. The
Recirculation System is not active and the fluid is being
sent to process.
2. Venting:
-The Recirculation System is preparing to initiate and
is either filling the pump and plumbing with fluid and/or
evacuating any air/bubbles from the plumbing. Please
note that this mode will activate anytime excessive
air/bubbles are detected within the recirculation
plumbing.
3. Recirculation: -The Recirculation System is active and no fluid is
being diverted to process. An external signal is
required in order to initiate this mode.
The Aquarius
D.I. Water Heating System has been configured to default to the
“Demand”
mode. In order to place the Aquarius
into Recirculation mode several
conditions must occur:
1. The Recirculation System must be enabled.
2. A customer provided “Recirculation Signal” is required to send the
system into the Recirculation mode.
3. The Venting mode cannot be active.
If the above conditions are not met the Aquarius
will fail to enter the
“Recirculation”
mode and remain in the
“Demand”
mode. Please note that the
presence of any “critical” alarms will abort recirculation by shutting off the pump and
deactivating the heaters. Once the “critical” alarms have been resolved,
recirculation will automatically resume but the Aquarius
will be in
“Standby”
mode
and the heaters will remain OFF until the system is placed back into the
“Active”
mode.
