AERCO KC Standard to Low NOx Convertion Instructions - Manual (Page 27)

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Figure 24. Igniter and Flame Detector Installation
14. Reinstall the Low Pressure Gas Switch shown in Figure 6 (Siemens SSOV) or Figure 7
(Honeywell SSOV). Reconnect the two switch wire leads. There is no polarity to observe
when reconnecting these leads.
15. Refer to Figure 25 and install the condensate drain components at the rear of the unit as
follows:
(a) Attach the 1-3/4” O.D. condensate drain hose to the exhaust manifold (Figure 25) and
insert the hose into the condensate cup. Allow the cup to rest on the floor directly beneath
the condensate drain.
(b) Connect a length of 3/4” tubing to the condensate cup drain tube and route it to a floor
drain.