Scanning Walls For Air Leaks Or Insulation Deficiencies; Testing Bearings; Testing Belts And Sheaves - Ega Master EGATRONIK Operating Instructions Manual

SCANNING WALLS FOR AIR LEAKS OR INSULATION
Deficiencies
1. Turn off heating, cooling, and blower.
2. Press SET to select emissivity. Press / to select emissivity relatively high for painted surfaces or
window surfaces.
3. Press YELLOW button to select MIN when opposite side of wall is at lower temperature and
or select MAX when opposite side of wall is at higher temperature.
4. Measure an interior partition wall surface temperature.
Do not release the trigger. Record this temperature as your baseline (or benchmark) for a
'perfectly' insulated wall.
5. Face the wall to be scanned. Stand 1.2m away to scan a 10cm spot on the wall.
6. Scan horizontal rows of wall from top to bottom, or horizontal rows of ceiling from wall to
wall. Look for greatest deviations from baseline temperature to identify problems. This completes
the insulation test scan .
Turn on the blower (no heat, no cooling) and retest. If test results with the blower on are
different than results with the blower off, this may indicate air leaks in conditioned envelope walls.
The air leaks are caused by duct leaks that create a pressure differential across the conditioned
space envelope.

TESTING BEARINGS

To avoid injury when testing bearings:
- Do not wear loose clothing, jewelry, or anything around neck when working
around moving parts such as motors, belts, blower, and fans.
Warning!
- Make sure an electrical disconnect is within reach and operating correctly
and freely.
- Do not work alone.
Note
It works best to compare two similar motors operating similar loads.
1. Press SET and then press / to select relatively high emissivity.
2. Press YELLOW button to select MAX.
3. Enable motor and allow it to reach steady state operating temperatures.
4. Disable the motor if possible.
5. Measure the two motor bearing temperatures
6. Compare the two motor bearing temperatures.
Unequal temperatures or a high temperature can indicate a lubrication or other bearing problem
that is resulting from excess friction.
7. Repeat the sequence for the blower bearings.

TESTING BELTS AND SHEAVES

1. Press SET and then press
2. Press YELLOW button to select MAX.
3. Enable the motor and allow it to reach a steady state operating temperatures.
4. Aim the Thermometer at the surface to be measured.
/ to select relatively high emissivity.
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