Lagoon edit · Free shipping over $80 · Glass-clear summer drops
Description

What is the purpose of the 12A39 vent limiter in this model

allowing for both safety lockout and remote alarm signaling

it requires a minimum operating pressure differential (MOPD) of 5 PSI to lift the diaphragm and open the main orifice

ASME Certified: National Board certified to meet Section IV requirements for hot water heating boilers

As a genuine Sterling furnace part

Honeywell 10168 Smart Cell R-410A What is the purpose ofHoneywell 10168 Ammonia(NH3)Smart Cell 0 500ppm

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