AERCO KC Standard to Low NOx Convertion Instructions - Manual (Page 15)

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4. EQUIPMENT REPLACEMENT & REINSTALLATION
The parts provided in the Low NOx Conversion Kit will differ slightly, depending on whether the
KC1000 is equipped with a Siemens SSOV (-1 or -2 Kit) or a Honeywell SSOV (-3 or -4 Kit). See
paragraph 1.2 for kit contents. Following removal and/or modification of all the required parts and
assemblies, replace or reinstall these items as follows:
NOTE
Unless otherwise specified, the following steps apply to all KC1000 Boilers
and Water Heaters, regardless of the type of SSOV installed.
1. Install the six new 5/16”-18 x 1-3/4” studs provided in the Kit in the Exhaust Manifold as
follows:
(a) Apply LocTite 620 (or equivalent) to the manifold-end of the stud threads.
(b) Thread the ends of the studs into the tapped holes in the bottom of the Exhaust Manifold
as shown in Figure 13. Ensure that they are fully inserted and secure. These studs will
be used to secure the new Low NOx Burner to the manifold.
CAUTION
THE EXHAUST MANIFOLD OPENING IS SLIGHTLY TAPERED. THERE-
FORE, USE CARE WHEN INSTALLING THE COMBUSTION CHAMBER
LINER TO AVOID DAMAGE.
2. Position and install the new 2 inch Combustion Chamber Liner using the steps shown in
Figure 14. Position the Liner so it is flush with the bottom of the Exhaust Manifold (Figure 13)
Figure 13. Exhaust Manifold Studs and Combustion Chamber Liner Location