Laars Mighty Max VW Series, Инструкции по установке, эксплуатации и обслуживанию

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Mighty Max Volume Water Heater
Page 23
7. Disconnect the flange and adapter tee from the
heat exchanger inlet and outlet.
8. Remove temperature sensing probes from the
inlet/outlet header.
9. Remove the heat exchanger from the heater.
10. Remove the heat baffles from the heat
exchanger.
11. Clean the heat exchanger: A light accumulation
of soot or corrosion on the outside of the heat
exchanger can be easily removed after the heat
baffles are removed. Use a wire brush to remove
loose soot and scale from the heat exchanger. Do
not use water or compressed air for cleaning.
NOTE: While the heat exchanger is out of the
heater, inspect the firewall refractory insulation
blocks for cracks, wear and breakage. Replace if
necessary.
4B-2b. Cleaning the Heat Exchanger -
Internal
1. Remove the inlet/outlet header of the heat
exchanger.
2. Remove the return cover of the heat exchanger.
3. Clean the internal surface. (Laars offers a tube
cleaning kit part number R0010000.)
4. Reassemble in the reverse order.
4C. Gas and Electric Controls
The gas and electric controls on the heaters are
designed for both dependable operation and long life.
Safe operation of the heater depends on their proper
functioning. A professional service technician should
check the following basic items every year, and
replace when necessary.
NOTE: The warranty does not cover damage
caused by lack of required maintenance or improper
operating practices.
1.
Water temperature controls.
2. Ignition control system.
3. Automatic electric gas valve(s).
4. Flow sensing safety device.
5. Low water cutoffs, including flushing or float
types. (Every six months).
Other maintenance requirements include:
1.
Periodic cleaning of filters, when supplied.
2. Lubrication of moving parts (when applicable),
with the correct type and amount of lubricant.
3. Periodic examination of the venting system.
4. Periodic cleaning of vent terminal screens,
where applicable.
5. Cleaning flue gas passageways.
4D. Filter
4D-1. Filter Function
A filter has been designed into the operation of
this Mighty Max boiler. Its function is to filter the
combustion air before it is delivered to the burner
system. The filter is manufactured out of a
polyurethane foam and may be cleaned with a mild
soap and water solution. Clean the filter only after the
filter has been removed from the filter housing (see
Figure 18).
FILTER
ARROW
Figure 18. Filter Exposed for Cleaning.
4D-2. Filter Service
(The filter does not need cleaning if this is a first
time heater start-up).
1. Turn the heater off using the toggle switch.
2. Remove the door panel and bonnet from the
jacket.
3. Remove the screws on the filter housing to
expose the filter as shown in Figure 18.
4. Inspect the filter for discoloration due to
contamination or any other forms of debris. If
contamination or debris exists, wash the filter in
a soap/water solution then rinse with water only.
It is important that the filter be dry before
placing it back in the filter housing.
Caution
The filter has arrows which indicate the direction of
the air flow. Failure to install the filter correctly may
cause blower failure and dangerous operation.
The filter must be inspected for contamination
one week after start-up. Depending upon the severity
of contamination, a suitable cleaning schedule may be