Lennox Elite Series Installation Instructions Manual page 12

5. Use a field-provided fitting to temporary reconnect the
liquid line to the indoor unit's liquid line orifice housing,
DISTRIBUTOR TUBES
LIQUID LINE ORIFICE HOUSING
TEFLON RING Remove and discard valve
FIXED stem assembly (if present)
BRASS NUT
/
" j ....
VA_ ?' "%% _'2s_ ASS_ "_T
VALVE STEM C AP (Uncased Coil Shown
Figure 20. Typical Fixed Orifice Removal
TYPICAL TXV REMOVAL PROCEDURE
1. On fully cased coils, remove the coil access and
plumbing panels,
2. Remove any shipping clamps holding the liquid line
and distributor assembly,
3. Disconnect the equalizer line from the TXV equalizer
line fitting on the suction line,
(Uncased Coil Shown)
TWO PIECE
PATCH PLATE
UNCASED COIL LIQUID LINE STUB END
ONLY) ORIFICE HOUSING
DISTRIBUTOR
TXV
TUBES
RING
SENSING
LINE
/
MALE EQUALIZER LINE
/
FITTING / SUCTION
SENSING BULB L_, LIQUID
LINE
Figure 21. Typical TXV Removal
4. Remove the suction line sensing bulb.
5. Disconnect the liquid line from the TXV at the liquid line
assembly,
6. Disconnect the TXV from the liquid line orifice housing.
Take care not to twist or damage distributor tubes
during this process,
7. Remove and discard TXV and the two Teflon rings as
illustrated.
8. Use a field-provided fitting to temporary reconnect the
liquid line to the indoor unit's liquid line orifice housing,
A IMPORTANT
A IMPORTANT
IMPORTANT
CAUTION
505329M 04/08
Page 12