24
This switch also prevents operation when the propane tank
level is low which can result in gas with a high
concentration of impurities, additives, and residues that
have settled to the bottom of the tank. Operation under
these conditions can cause harm to the heat exchanger
system. Contact your fuel supplier if this condition is
suspected.
Flue Gas Passageways
To inspect the flue collector box and upper areas of the
heat exchanger:
1. Remove the combustion blower wheel and motor as-
sembly according to directions in Combustion--Air
Blower section. See Fig. 31.
2. Remove the flue cover to inspect the heat exchanger.
3. Clean all surfaces as required using a wire brush.
Combustion--Air Blower
Clean periodically to assure proper airflow and heating
efficiency. Inspect blower wheel every fall and
periodically during heating season. For the first heating
season, inspect blower wheel bi--monthly to determine
proper cleaning frequency.
To access burner section, slide the sliding burner partition
out of the unit.
To inspect blower wheel, shine a flashlight into draft hood
opening. If cleaning is required, remove motor and wheel
as follows:
1. Slide burner access panel out.
2. Remove the 7 screws that attach induced--draft motor
housing to vestibule plate. (See Fig. 31.)
3. The blower wheel can be cleaned at this point. If ad-
ditional cleaning is required, continue with Steps 4
and 5.
4. To remove blower from the motor shaft, remove 2
setscrews.
5. To remove motor, remove the 4 screws that hold the
motor to mounting plate. Remove the motor cooling
fan by removing one setscrew. Then remove nuts that
hold motor to mounting plate.
6. To reinstall, reverse the procedure outlined above.
Flue Baffle
(Low NOx only)
Heater Tube
Assembly
Seal Strips, Sponge Rubber
Regulator
Gasket
Regulator
Baffle Assembly
(Low NOx only)
Retainer
Support
Insulation
Assembly
Wind Cap Assembly
(shown inverted,
as shipped)
Burner Assembly
Inducer Fan-Motor
Assembly
C08227
Fig. 31 -- Heat Exchanger Assembly
48TC
Summary of Contents for WeatherMaker 48TC*A04
Page 10: ...10 COOLING CHARGING CHARTS cont C08204 C08228 Fig 12 cont Cooling Charging Charts 48TC ...
Page 11: ...11 COOLING CHARGING CHARTS cont C08229 C08437 Fig 12 cont Cooling Charging Charts 48TC ...
Page 12: ...12 COOLING CHARGING CHARTS cont C08438 C08439 Fig 12 cont Cooling Charging Charts 48TC ...
Page 35: ...35 C08248 Fig 42 PremierLink Wiring Schematic 48TC ...
Page 43: ...43 C07129 Fig 59 RTU MP Multi Protocol Control Board 48TC ...
Page 44: ...44 44 C08458 Fig 60 RTU MP System Control Wiring Diagram 48TC ...
Page 64: ...64 C08308 Fig 83 48TC Typical Unit Wiring Diagram Power A06 208 230 3 60 48TC ...
Page 65: ...65 C08317 Fig 84 48TC Unit Wiring Diagram Control A06 48TC ...
