compliance level of the original heating system.
OOE:
After maintenance is performed,
refer to
SECOIO 3.3
for system start-up procedures.
4.2.1 PLUMBING CONNECTIONS
Periodically check plumbing connections for leaks and,
if necessary, tighten connections. A loose connection on
the suction side will cause a loss of flow and cavitation in
the pump. It can also pull air into the heating tank and
cause an element failure.
4.2.2 ELECTRICAL CONNECTIONS
Vibration may cause terminals to loosen. At start-up,
tighten electrical connections. Check connections
again in a week. Tighten all electrical connections every
three months.
4.2.3 SYSTEM MOUNTING
Vibration may cause mounting bolts to loosen.
Periodically check and tighten all mounting bolts.
4.2.4 MAGNETIC CONTACTORS
Magnetic contactors are used as voltage switching
controls for motors and heating elements in HOTSTART
heating systems. The contactors use 120 volt or 240
volt coils. To test for failure, check for continuity across
the coil connections; an open or direct-short reading
indicates a failed contactor coil.
The contacts on the magnetic contactor should be
inspected periodically for welding, arc erosion and
mechanical wear. If any of these conditions exist, replace
the magnetic contactor. HOTSTART recommends
contactors be replaced every five years.
4.2.5 PUMP SEAL
If seal becomes worn, replacement pump seals are
available. To ensure pump seal longevity, ensure
the supply lines do not restrict flow excessively (
see
SECOIO 2.1.1
)
OOE:
Instructions to replace the pump seals are
included with replacement seals.
4.2.6 PRESSURE RELIEF VALVE
The oil pump pressure relief valve is internal to the pump
and releases pressure from the discharge side of the
pump to the suction side of the pump. No maintenance
for this part is required.
4.2.7 PRESSURE/ TEMPERATURE
GAUGE
The oil pressure/temperature gauge will indicate a
pressure increase when the pump motor is engaged
by pressing the
prime
button or during normal heater
operation. The gauge will also indicate the current fluid
temperature. No maintenance for this part is required.
4.2.8 VOLATILE CORROSION
INHIBITOR
A volatile corrosion inhibitor (VCI) is provided with each
control box and should be replaced once a year.
OOE:
Heating systems placed in extended storage
will require that the VCI is replaced at six month
intervals.
See
SECOIO 4.4
.
