AERCO Electronic Controls System (ECS) - Manual (Page 32)

Electronic Control System (ECS) and Type CXT-E Valve
4. OPERATION
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AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288 VD2: 02/28/14
OMM-0003_0D AC-105
8) When in the AUTO mode, the ECS will stabilize at the selected setpoint temperature (see
Section 3). Once stabilized, the ECS is set for unattended operation with no further operator
intervention.
IMPORTANT NOTE:
In order to accurately measure the outlet flow rate of the AERCO
Water Heater, it is imperative that the properly sized inlet orifice be
installed in the cold water inlet. Failure to do so will result in
erroneous flow rate readings.
4.4 CHECKING WATER HEATER FLOW RATE
If desired, the water heater outlet flow rate in gallons per minute (GPM) can be monitored using
the controls and displays on the Temperature Controller. This is accomplished as follows:
1) Press the Scroll ( ) button and scroll to Li.2.
2) When Li.2 is shown in the upper display, the lower display will show the water heater outlet
flow rate in gallons per minute (GPM). The flow rate will be displayed for several seconds
and then the Controller will revert to the default displays (outlet water temperature and
setpoint).
4.5 CHECKING THE VALVE POSITION OUTPUT IN AUTO MODE
1) Press the Scroll ( ) button and scroll to OP.
2) The display will indicate the percent open from 0 to 100. This should be checked with the
indicator scale on the CXT valve linkage. See Figure 1-4 for scale location.