Txv Replacement Information - Bosch BMAC2430ANTD Installation Manual

1 4 | Bosch Multi-Position Cased Coils

6 TXV replacement information

The TXV replacement options noted in this sheet supersede those in the
installation guide. Please reference this sheet for all refrigerant metering
options.
1. Remove the screws and front coil panel.
2. Remove the rubber plugs from the liquid and vapor lines.
3. Remove relevant ties and pipe insulation.
4. Unwrap and remove the TXV sensing bulb.
5. Remove the equalizer tube from vapor pipe. Wrap the TXV and coil panel with
a wet rag to prevent overheating while brazing. Use a shield plate to prevent
the copper pollution.
front view
removed insulation view
Figure 10
Data subject to change
WARNING:

Wrap the TXV and coil panel with a wet rag to prevent
overheating while brazing; and use a shield plate to prevent
the fire and copper pollution.
6. Disconnect the input pipe ,Wrap the TXV and coil panel with a wet rag
to prevent overheating while brazing,Use a nitrogen fl ow and braze all
connections while brazing. Use a shield plate to prevent the copper pollution.
7. Remove the TXV fi xed screws.
8. Replace a new TXV, wrap the TXV with a wet rag or dip into water to prevent
overheating while brazing.
9. Allow tubing to cool and pressurize line sets with 150 PSI of nitrogen to check
braze connections and flow assembly for leaks. Make repairs as needed.
BULB
screws
TXV
Installation Manual
03.2017 | Bosch Thermotechnology Corp.