SS-APG008H-EN
19
Figure 10.
TWA heat pump and matched indoor coil (typical arrangement shown in cooling mode)
bi-directional heat pump filter
bi-directional heat pump filter
Notes:
1. Each coil distributor requires one thermal expansion valve (TXV) and one check valve. See
, and , for
recommendations.
2. For applications where the length of the liquid line exceeds 80 ft (24 m) and the heat pump will start in the cooling
mode, remove the liquid-line filter driers from the TWA heat pump and install new filter driers and check valves
(
) at the indoor unit.
3. Shutoff valves are a field installed option and no longer come standard from the factory.