Innovation Water Heaters Installation, Operation & Maintenance Manual
CHAPTER 3 – OPERATION
OMM-0078_0M
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
Page
49
of
216
GF-128
Phone: 800-526-0288
09/11/2015
Menu Item Display
Available Choices or Limits
Default
Minimum
Maximum
40 Inlet Wtr Offset
-20
+20
0
41 Outlet Wtr Offset
-20
+20
0
42 Spark Monitor
Enabled or Disabled
Depends on unit type/size
43 Min Spark Amps
0 Amps
2.5 Amps
0.1 Amps
44 Max Spark Amps
0 Amps
2.5 Amps
0.4 Amps
3.9 START SEQUENCE
When the Control Box ON/OFF switch is set to the
ON
position, it checks all pre-purge safety
switches to ensure they are closed. These switches include:
•
Safety Shut-Off Valve
Proof of Closure
(POC) switch
•
Low Water Level
switch
•
High Water Temperature
switch
•
High Gas Pressure
switch
•
Low Gas Pressure
switch
•
Blower Proof
switch
NOTE
The downstream
Low Gas Pressure
switch is
not
checked prior to starting
the pre-purge.
If all of the above switches are closed, the
READY
light above the ON/OFF switch will light and
the unit will be in the Standby mode.
When there is a demand for hot water, the following events will occur:
NOTE
If any of the Pre-Purge safety device switches are open, the appropriate
fault message will be displayed. Also, if the required conditions are not
observed at any point during the start sequence, appropriate messages will
be displayed and the unit will go into fault mode.