25. The refrigerant management module on a direct geo-
thermal
heat
pump system
performs all of the
following
functions except
A. routing system refrigerant to the above ground
denser when the system is operating in the cooling
mode.
B. controlling refrigerant flow to ensure the refrigerant
charge is correct in both modes of operation.
C. bypassing the reversing valve in the cooling mode
when low ambient conditions could cause coil
freeze-ups.
D. routing system refrigerant to the earth loop (evaporator)
when the system
is operating in the heating mode.
