AM Series Boiler & Water Heater User Manual
CHAPTER 6: INSTALL
– VENT & COMBUSTION AIR PIPING
OMM-0100_E
•
GF-146
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11/15/2019
Technical Support
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(800) 526-0288
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Polypropylene and stainless steel pipe may require an adaptor (not provided) to transition
between the air inlet connection on the appliance and the air inlet pipe. Contact the vent
manufacturer for a suitable adaptor.
6.5.1 Installations Requiring High Temperature Venting
The AM Series burners are factory set for plastic venting applications, and will the firing rate
when flue gas temperatures reach 203°F. For installations with a delta T <35°F and return water
temperatures higher than 145°F, a high temperature vent kit (69254-TAB) is required, and PVC
venting is not allowable. These kits are automatically configured in buy.aerco.
Factory Menu Settings and Fuse Replacement for SST Venting
1.
Refer to Appendix B for how to access, navigate, and choose settings in the Factory Menu.
2.
Navigate to 3100 parameter and change to "
SST
" for stainless, "
CPVC
" for cPVC, and "
PP
"
for polypropylene venting, which changes vent temperature threshold from 203°F to 215°F.
3.
Refer to section 10.14 for instructions on opening the front panels to access the burners.
4.
Locate the red Molex bayonet style fuse located to the right of each burner module, at the
exhaust flue connection, as shown in 6-1a.
5.
Remove each existing fuse rated for 203°F (P/N 62110042) and replace with the new one
rated for 215°F (62110046).
6.
Replace the front covers and proceed with venting installation procedures.
Figure 6-1a: Location of Flue Gas Temperature Limit Fuse
FLUE GAS
TEMPERATURE
LIMIT FUSE
BURNER
BLOWER
EXHAUST FLUE
CONNECTION
