22
Hydronic block requires minimum periodic maintenance.
Annual maintenance allow for trouble free operation.
1.
Boiler is designed to provide years of trouble free
performance under normal operating conditions.
Conduct general external examination at beginning of
each heating season and at mid-heating seating season
to assure good working performance continues. A
qualied service technician should examine at least once
every year.
2.
Do not store anything against boiler or allow dirt or
debris to accumulate in area immediately surrounding
boiler.
3.
Elements will burn out if boiler is not adequately lled
with water when electrical power is turned on. Do
not connect thermostat wire until system has been
lled with water. Drain water out of system only when
absolutely necessary to make repairs or prevent freeze-
up during extended cold weather shutdown.
4.
Check temperature and pressure gauge frequently.
During normal operating conditions, pressure should
be stable throughout heating season. If pressure under
normal operating conditions consistently rises and falls
over period of time, this can indicate ll valve leak,
system leak, or compression tank malfunction. Leaks
anywhere must be repaired immediately. If leaks or
signicant pressure uctuations are observed, call for
service immediately.
5.
Test safety relief valve for proper operation. Refer to
valve manufacturer's instructions packaged with relief
valve.
6.
Check eld entrance wire connections to unit for any
signs of looseness or over heating. Verify wire lugs
are tight and torqued to manufacture recommended
settings - see Table B
7.
Check all heating element wiring for signs of dark or
damaged connections. Replace if any sign of failure
exists.
GENERAL MAINTENANCE
WARNING
Electrical shock hazard. Turn OFF electrical power
supply at main power switch before servicing unit.
Service shall be preformed by a qualied service
agent. Failure to do so could result in death or
serious injury.