Innovation - Edge [i] Installation, Operation, Maintenance Manual
CHAPTER 4 – INITIAL START-UP
OMM-0143_A • GF-216 • 9/6/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 57 of 170
7. Check that the manometer reading is within the allowable gas pressure range, 4.0” W.C. and
14” W.C. If it is outside that range, you must take whatever steps necessary to correct this
issue. Proceed to the next step only if the gas pressure is within the allowable range.
8. Shut off the unit and close the main manual gas supply shut-off valve.
9. Remove the manometer from the upstream port and replace the 1/4” plug.
10. Remove the 1/4” plug from the downstream ball valve and install the manometer on that port.
It will remain in this position until combustion calibration is complete.
4.2.3 Accessing the Analyzer Probe Port
The unit contains a 1/8” NPT port at the rear of the exhaust manifold. This port is located above
the condensate drain connection as shown in Figure 4.2.3. Prepare the port for the combustion
analyzer probe as follows:
ACCESSING ANALYZER PROBE PORT Instructions
1. Refer to Figure 4.2.3 and remove the 1/8” NPT plug from the rear of the exhaust manifold.
2. If necessary, adjust the stop on the combustion analyzer probe so it will extend mid-way into
the flue gas flow. DO NOT install the probe at this time
Figure 4.2.3: Analyzer Probe Hole Location
4.2.4 Connecting Multimeter to Flame Detector
During Combustion Calibration, the flame strength generated by the flame detector is measured
using a multimeter set to the µA scale. The flame detector is mounted on the intake manifold
flange as shown in Figure 4.2.4.
Proceed as follows to set up the multimeter to measure the flame strength current:
VENT PROBE
PORT WITH
1/8” (3.18 mm)
NPT PLUG
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