Bosch BOVA Series Installation Instructions Manual page 12

1 2 | Bosch IDS BOVA
2. Remove the pressure tap cap from both service valves.
Figure 16
3. Purge the refrigerant lines and indoor coil with dry nitrogen.
This pipe
must have
a thimble
Figure 17
4. Wrap a wet rag around the valve body to avoid heat damage and continue the
dry nitrogen purge (Fig. 18).
Braze the refrigerant lines to the service valves.
Check liquid line fi lter drier's directional fl ow arrow to confi rm correct direction
of refrigeration fl ow (away from outdoor unit and toward evaporator coil) as
illustrated. Braze the fi lter drier to the Liquid Line.
Continue the dry nitrogen purge. Do not remove the wet rag until all brazing is
completed.
Remove the wet rag before stopping the dry nitrogen purge.
Data subject to change
Figure 18
5. Replace the pressure tap caps after the service valves have cooled.
Figure 19
Installation Instructions
Field supplied
and installed
3-4" from valve
12.2016 | Bosch Thermotechnology Corp.