Rheem GHE100SU - A027 Flame present before ignit.; A028 Flame present w;o heating.; A029 Failed ignition. Retrying.; A030 Flame lost during heating. Retrying.

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The first step to install the PP pipe is to find a PVC to PP adapter and lubricate the gasket that will slide into the PVC
fitting. The lubricant for the Centrotherm parts is called Centrocerin. Apply a small amount onto your finger and then
apply to the outer gasket.
Straight piece of PP pipe connected to a
PP to PVC adapter vent terminal installed
onto a PP to PVC adapter.
Note: The hole through the wall should
be sized for the PP pipe, which has a
smaller OD than PVC pipe.
PP pipe
PVC to PP
adapter
Make sure to lubricate all
gaskets, external and internal.
Centrocerin
lubricant for Centrotherm
PP pipe and fittings
PVC pipe shipped
with the unit
Installation