26
48TCDD08 only
C08238
All 48TC*D except DD08
C08239
Fig. 31 -- LP Low Pressure Switch (Installed)
PNK
W2
TSTAT
GRA
BRN
IGC
J2-12
IGC
J2-11
BRN
C
NO
MGV
C
LP LPS
C08285
Fig. 32 -- LP Supply Line Low Pressure Switch Wiring
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. 33.)
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. 33.)
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.
48TC
Summary of Contents for WeatherMaker 48TC*D08
Page 10: ...10 COOLING CHARGING CHARTS C08669 Fig 10 Cooling Charging Charts D08 48TC ...
Page 11: ...11 COOLING CHARGING CHARTS C08670 Fig 11 Cooling Charging Charts D12 48TC ...
Page 12: ...12 COOLING CHARGING CHARTS C09151 Fig 12 Cooling Charging Charts D14 Circuit A 48TC ...
Page 13: ...13 COOLING CHARGING CHARTS C09152 Fig 13 Cooling Charging Charts D14 Circuit B 48TC ...
Page 37: ...37 C08665 Fig 43 Typical PremierLinkt System Control Wiring Diagram 48TC ...
Page 45: ...45 C07129 Fig 60 RTU MP Multi Protocol Control Board 48TC ...
Page 46: ...46 C09163 Fig 61 Typical RTU MP System Control Wiring Diagram 48TC ...
Page 67: ...67 C09156 Fig 84 48TC Typical Unit Wiring Diagram Power D08 208 230 3 60 48TC ...
Page 68: ...68 C09157 Fig 85 48TC Typical Unit Wiring Diagram Control D08 208 230 3 60 48TC ...