Maintenance - Honeywell Hauck MEGASTAR MS-25 Instructions Manual

W. MAINTENANCE
The Hauck MegaStar
free. However, there are a few items that should be periodically checked.
1. Check the fuel control valves for proper operation.
2. For burners fired on oil:
Dirt can clog the atomizing air nozzle, as well as cause problems firing the burner. If the
nozzle is dirty, fuel oil will not atomize properly and will result in lower combustion efficiency.
Twice a year (or more frequently when firing heavy fuel oil, waste oil or in dusty conditions),
remove and clean the burner oil insert tube and nozzle assembly as described below:
a. Shut off the oil flow to the burner.
b. Note the relative location of the oil atomization nozzle with respect to the primary air
tube.
c. Remove the bolts that secure the atomizing air backplate and remove the backplate
and its attached fuel tube and atomizing oil nozzle.
d. Disassemble the nozzle. Clean all the components of oil and other foreign material
that may be plugging the nozzle holes. If used on heavy fuel oil, remove the nozzle
and soak it in a solvent to loosen the oil deposits. Scrape the nozzle body and holes
(if necessary) using wooden tools or a plastic bristle brush only, being careful
not to damage machined parts.
e. Reassemble the oil nozzle, reattach the nozzle to primary air tube, and then attach the
burner backplate to the burner body.
f. Check to ensure that the atomizing oil nozzle is at the proper position inside the
burner (see Section N).
3. Periodically check all safety equipment, such as pressure switches, solenoid valves, and
safety shutoff valves to ensure they are not clogged with dirt, or in any way inoperative.
4. Check and clean UV scanner lens as conditions dictate to keep it clean of dirt and dust.
If the fan motor or impeller are removed or replaced, the
fan vibration should be checked upon reassembly. If
vibration levels are excessive, the fan should be trim
balanced to minimize motor bearing wear.
5. A yearly check of the fan (impeller/motor) vibration, measured in the vertical direction at the
motor bearings, is recommended. Consult Eclipse for acceptable vibration levels.
TM
6. MegaStar fan impellers are equipped with wear resistant impeller blades. However, every
effort should be made to minimize dust entering into the fan impeller. Excessive dust may
cause premature wearing of impeller blades and burner parts in addition to unbalance of the
fan.
7. Should it be necessary to remove the fan impeller from the motor shaft, it is important to
replace the fan impeller in the proper position. See Figure 20 for installation instructions.
TM
burner has minimal internal moving parts and is relatively maintenance
NOTE
IMPORTANT
If the fan wheel is not installed properly, air capacity
of the main fan will be reduced, diminishing burner
capacity and efficiency.
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