Checking Hydronic Radiant Heat Applications; Measuring Grille, Register, Or Diffuser Discharge Temperature; Checking For Blockage In Air-To-Air Evaporators Or Condensers - Ega Master EGATRONIK Operating Instructions Manual

5. Start recording temperature
6. Slowly move the Thermometer up the belt toward second sheave.
- If belt is slipping, sheave temperature will be high from friction.
- If belt is slipping, belt temperature will remain high between sheaves.
- If belt is not slipping, belt temperature will reduce between sheaves.
- If inner surfaces of sheaves are not a true 'V' shape, this indicates belt slippage and will continue
to operate at elevated temperatures until sheave is replaced.
- Sheaves must be properly aligned (include 'pitch & yaw') for belt and sheaves to operate at
appropriate temperatures. A straight edge or taut string, can be used to check alignments.
- Motor sheave should operate at a temperature consistent with blower sheaves.
- If motor sheave is at a higher temperature at motor shaft than at outer circumference, belt is
probably not slipping.
- If outer circumference of sheave is at higher temperature than sheave at motor shaft, then belt is
probably slipping and sheaves may be misaligned.

CHECKING HYDRONIC RADIANT HEAT APPLICATIONS

Radiant heat tubes in the floor will normally run parallel to the outside walls. Starting at the
floor wall juncture, scan parallel to the wall while moving into the room away from the wall.
Parallel to the outside wall you should find parallel isothermal rows indicating the location of
heat tubes below the surface. Perpendicular to the outside wall, you should find rising and falling
temperatures at equal distances. High temperatures indicate you are scanning a heat tube beneath
the floor surface, low falling temperatures indicate a space between the heat tubes.
1. Press SET and then press
2. Press YELLOW button to select MAX.
3. To locate radiant heat tubes in floor, temporarily elevate the loop temperature to create hotter
spots for identifying tubing runs.
4. Before releasing trigger, press YELLOW button to toggle between MIN, MAX, DIF floor
temperatures and record the temperature for future comparison and trending under similar
conditions.

MEASURING GRILLE, REGISTER, OR DIFFUSER DISCHARGE TEMPERATURE

1. Press SET and then press
2. Aim the Thermometer at the discharge air grille, register, or diffuser.
3. Measure discharge temperature.
4. Release trigger to freeze the temperature reading for 8 seconds and record this temperature.
5. Grille, register, or diffuser temperature should be equivalent to discharge temperature at the
air handler.

CHECKING FOR BLOCKAGE IN AIR-TO-AIR EVAPORATORS OR CONDENSERS

1. Remove panels to gain access to coil return bends or hairpins.
2. Press SET and then press / to select relatively high emissivity for copper tube.
3. Start the refrigeration system.
4. Aim the Thermometer at coil turn bends/hairpins.
5. Start recording temperature.
6. Take temperature of each return bend/hairpin.
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/ to select relatively high emissivity.
/ to select relatively high emissivity.