20
1.
2.
3.
4.
Press
SET
and then press / to select relatively
high emissivity.
Press
MODE
to select MAX.
To locate radiant heat tubes in floor, temporarily
elevate the loop temperature to create hotter spots
for identifying tubing runs.
Before releasing trigger, press
MODE
to toggle
between MIN, MAX, DIF floor temperatures and
record the temperature for future comparison and
trending under similar conditions.
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.
2.
3.
4.
5.
Press
SET
and then press / to select relatively
high emissivity.
Aim the Thermometer at the discharge air grille,
register, or diffuser.
Measure discharge temperature.
Release trigger to freeze the temperature reading
for 8 seconds and record this temperature.
Grille, register, or diffuser temperature should be
equivalent to discharge temperature at the air
handler.
Model 72-820: OPERATING MANUAL
This Manual: http://www.manuallib.com/file/2592895
