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Page 14 of 24
BMK1.5 LN Boiler 24-Month Maintenance Kit #58025-05 Instructions
Technical Instruction Document
TID-0066_0B
AERCO International, Inc.
•
100 Oritani Dr.
•
Blauvelt, New York 10913
•
Phone: 800-526-0288
NOTE
The Igniter-Injector hardware contains a compression nut (P/N
56047) with a built-in ferrule and three clocking (indexing) washers
(P/N 53033). These washers are used, as needed, to properly
position the Igniter-Injector’s gas injector tube, as described in the
following step.
3. Reinstall the Igniter-Injector and, if necessary, install 1, 2 or 3 clocking washers to
properly position the Gas Injector Tube within the 120° angle shown in Figure 8. Torque
the Igniter-Injector to 15 ft-lbs. Do not over tighten.
Figure 8: Benchmark 1.5LN Igniter-Injector Orientation
4. Connect the Staged Ignition Assembly to the Igniter-Injector’s Gas Tube by securing the
compression nut (P/N 56047) to the elbow of the Staged Ignition Assembly using a 7/16”
open-ended wrench. Position the Staged Ignition Solenoid so it is not contacting any other
components of the Burner Assembly or heat exchanger.
5. Reconnect the Igniter-Injector cable. This completes the replacement of the Igniter-Injector.
6.1.3.2
Flame Detector Installation
Flame Detector (P/N 66034) and gasket (P/N 81047) installation is accomplished as follows:
Flame Detector Installation Instructions
1. Refer to Figures 5 and 6 to locate the Flame Detector installation location.
2. Install the replacement Flame Detector (P/N 66034) and Flame Detector Gasket (P/N
81047) in the location shown. Secure the Flame Detector to the Burner housing flange
using the two screws removed previously.