Start/Stop Levels - Watts Aerco Innovation 800 User Manual

Innovation Hot Water Hot Water Boiler User Manual
6. Up to 7 seconds will be allowed for ignition to be detected. The igniter-injector relay will
be turned off one second after flame is detected.
7. After 2 seconds of continuous flame, FLAME PROVEN will be displayed and the flame
strength will be indicated. After 5 seconds, the current date and time will be displayed in
place of the flame strength.
8. With the unit firing properly, it will be controlled by the temperature controller circuitry. The
heater's VALVE POSITION will be continuously displayed on the front panel bar-graph.
Once the demand for hot water has been satisfied, the Control Box will turn off the SSOV gas
valve. The blower relay will be deactivated and the Air/Fuel Valve will be closed. STANDBY
will be displayed.

3.10 START/STOP LEVELS

The ignition position (start) and stop levels are the Air/Fuel Valve positions (% open) that start
and stop the unit, based on load. These levels are Factory preset as follows:
Fuel
Natural Gas
Normally, these settings should not require adjustment.
Note that the energy input is not linearly related to the Air/Fuel Valve position. Refer to Table 3-
7 for the relationship between the energy input and Air/Fuel Valve position for a unit running on
natural gas.
Table 3-7. Relationship Between Air/Fuel Valve Position and Energy Input
Air/Fuel Valve
Innovation Hot Water Boiler Model: Energy Input in BTU/Hr (kWh)
Position
(% Open)
16% 45,000 (13.19)
20% 97,000 (28.42)
30% 192,000 (56.26)
40% 330,000 (96.69)
50% 424,000 (124.2)
60% 486,000 (142.4)
80% 615,000 (180.2)
100% 800,000 (234.4)
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11/15/2016
CHAPTER 3 – OPERATION
Start Sequence – Continued
Model Stop Level
All 16%
For Units Running Natural Gas
INN800
45,000 (13.19)
97,000 (28.42)
222,000 (65.05)
416,000 (121.9)
520,000 (152.4)
715,000 (209.5)
845,000 (247.6)
1,060,000 (310.6)
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Phone: 800-526-0288
- INTERNATIONAL
Ignition Position
25%
INN1060
1,001,000 (293.3)
1,203,000 (352.5)
1,350,000 (395.6)
INN1350
45,000 (13.19)
181,000 (53.03)
370,000 (108.4)
665,000 (194.9)
870,000 (254.9)
OMM-0120_0A
GF-128-I