User Manual

RECON Water Heaters Installation, Operation & Maintenance Manual
CHAPTER 4 – INITIAL START-UP
Page 58 of 178 AERCO International, Inc.  100 Oritani Dr.  Blauvelt, NY 10913 OMM-0103_0A
PRI: 10/28/2014 Phone: [phone] GF-147
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. Prepare the port for the combustion
analyzer probe as follows:
Accessing Analyzer Probe Port
1. Refer to Figure 4-2 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: Analyzer Probe Hole Location
4.2.4 Connecting a Multimeter to the 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 flange of the blower
side intake manifold as shown in Figure 4-3.
Proceed as follows to set up the multimeter to measure the flame strength current:
EXHAUST
MANIFOLD
VENT PROBE
PORT WITH 1/8”
NPT PLUG
CONDENSATE
DRAIN PORT