BASIC REFRIGERATION CYCLE
Beginning with the
Parallel Compressors
, refrig-
erant vapor is compressed into the
Discharge
Manifold
and is routed to the
Turbashed
oil sep-
arator. The Turbashed separates the liquid oil
from the refrigerant vapor by centrifugal force,
screen baffles and velocity reduction. The oil is
stored in the bottom reservoir portion of the
Turbashed and from there is distributed to the
compressors.
A 3-way
Heat Reclaim Valve
(HS) directs the
refrigerant to either the condenser or a heat
reclaim coil. When the HS solenoid is de-ener-
gized the valve directs the refrigerant to the
condenser.
The
Condenser
rejects the unwanted heat to
atmosphere, out of the system.
The
Flooding Valve
(A8) maintains minimum
discharge pressure during low ambient tempera-
ture conditions by reducing the effective condens-
ing surface. Restricting liquid refrigerant flow
from the Condenser, the Flooding Valve prevents
liquid refrigerant from leaving the condenser as
fast as it is forming, so the Condenser floods with
its own condensate.
The
Vertical Receiver
acts as a vapor trap and
supply the Main Liquid Pressure Differential
Solenoid Valve with quality liquid refrigerant.
Sufficient liquid, vapor, and pressure are critical
to the operation of the system. The system main-
tains these balances in the Vertical Receiver for
use as needed.
REFRIGERATION PROCESS
September 1, 1997
2 - 4
HUSSM ANN CORPORATION • BRIDGETON, M O 63044-2483 • Printed in USA
Figure 2-4 — Heat Reclaim Valve
Figure 2-5 — Flooding Valve
Figure 2-3 — Turba-Shed
Condenser
Discharge Manifold
Evaporator
Turba-Shed
Suction Manifold
A8
Valve
Liquid Manifold
Evaporator
Pressure
Regulator
Valve
Parallel
Compressors
Main Liquid Line
Pressure Differential
Valve
Heat Reclaim 3-Way Valve
Branch Line Solenoid Valve
Receiver
Figure 2-2 — Refrigeration Cycle
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