Innovation Water Heaters Installation, Operation & Maintenance Manual
CHAPTER 4 – INITIAL START-UP
Page
54
of
216
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, NY 10913
OMM-0078_0M
09/11/2015
Phone: 800-526-0288
GF-128
•
Digital Combustion Analyzer: Oxygen accuracy to ± 0.4%; Carbon Monoxide (CO) and
Nitrogen Oxide (NOx) resolution to 1PPM.
•
16 inch W.C. (4.00 kPa) manometer or equivalent gauge and plastic tubing.
•
Multimeter (Capable of measuring 0 – 10 µA)
•
1/4 inch NPT-to-barbed fittings for use with gas supply manometer or gauge.
•
Small and large flat blade screwdrivers.
•
Tube of silicone adhesive
4.2.2 Installing Gas Supply Manometer
The gas supply manometer is installed in the gas train as follows:
Installing Gas Supply Manometer
1.
Close the main manual gas supply shut-off valve upstream of the unit.
2.
Remove the front door and left side panels from the heater to access the gas train
components.
3.
Remove the 1/4 inch NPT pipe plug from the leak detection ball valve on the downstream
side of the Safety Shut Off Valve (SSOV) as shown in Figure 4-1.
4.
Install a NPT-to-barbed fitting into the tapped plug port.
5.
Attach one end of the plastic tubing to the barbed fitting and the other end to the 16 inch
W.C. (4.00 kPa)
manometer.
Figure 4-1. 1/4 Inch Gas Plug Location (INN600-1060 Gas Train Shown)
MANUAL
SHUTOFF
VALVE
SSOV
1/4" (6.35 mm) NPT PLUG
(Install manometer here)
LEAK DETECTION
BALL VALVE
TO
AIR/FUEL
LOW GAS
PRESSURE
SWITCH
HIGH GAS
PRESSURE
