Operating instructions

VIII. START-UP
1) Make sure that the system is free of leaks and that air is purged from the system.
2) After completing all domestic water connections, flush the domestic side of the Maxi-Therm thoroughly before
leaving the installation. Flushing the domestic water side of the Maxi-Therm will minimize the presence of
residual soldering flux in the Maxi-Therm tank and new piping. This is particularly important if the Maxi-Therm
will be unused for an extended period of time after installation. Flush the Maxi-therm by drawing at least three
times its volume from any convenient hot water fixture.
3) Make sure that all electrical connections are correctly made and that no exposed high voltage wiring is
present.
4) Turn off the burner.
5) Make sure that each zone valve or circulator operates when, and only when, its thermostat calls for heat. Let
each zone operate long enough to purge any remaining air from the system.
6) Set the Maxi-Therm thermostat to the desired position. Because hot water presents a scald hazard, it is best to
set the thermostat at 120F or lower and raise it only if necessary to provide adequate hot water.
7) Turn on the burner and allow the Maxi-Therm zone to operate. Make sure that the Maxi-Therm aquastat shuts
down the zone when it is satisfied.
WARNING
Water Temperatures over 125°F can cause severe burns instantly or death from scalds.
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WARNING
Never attempt to fill a hot empty boiler.
IMPORTANT
Fix any leaks found before proceeding further. Leakage from the boiler piping could result
in severe damage to the Maxi-Therm, boiler, and other system components.