AERCO Innovation (G-13-1854 and above) - Manual (Page 55)

Innovation Water Heaters Installation, Operation & Maintenance Manual
CHAPTER 4 – INITIAL START-UP
OMM-0078_0J
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Page 55 of
196
GF-128
Phone: 800-526-0288
PRI: 11/22/2013
4.4 PROPANE COMBUSTION CALIBRATION
IMPORTANT
The unit is shipped from the factory set up for either Natural Gas or Propane as
specified by the Style Number on the Sales Order. Complete the instructions
below only if your unit has been set up for Propane.
The Innovation Heater is combustion calibrated at the factory prior to shipping. However,
recalibration as part of initial start-up is necessary due to changes in the local altitude, gas BTU
content, gas supply piping and supply regulators. Start-Up & Registration Test Data sheets are
shipped with each unit. These sheets must be filled out and returned to AERCO for proper
Warranty Validation.
It is important to perform the calibration procedure as outlined in the following steps. This will
keep readjustments to a minimum and provide optimum performance.
Propane Combustion Calibration
1. Open the water supply and return valves to the unit and ensure that the system pumps are
running.
2. Open the propane gas supply valve(s) to the unit.
3. Set the control panel ON/OFF switch to the OFF position.
4. Turn on external AC power to the unit. The display will show LOSS OF POWER and the
time and date.
5. Set the unit to the Manual Mode by pressing the AUTO/MAN key. A flashing Manual Valve
Position message will be displayed with the present position in %. Also, the MANUAL LED
will light.
6.
Adjust the air/fuel valve position to 0% by pressing the ▼ arrow key.
7. Ensure that the leak detection ball valve downstream of the SSOV is open.
8. Set the ON/OFF switch to the ON position.
9.
Change the valve position to 29% using the ▲ arrow key. The unit should begin its start
sequence and fire.