HEAT RECLAIM CYCLE
The Heat Reclaim 3-Way Valve
(HS) routes the discharge heat
laden vapor to an re m o t e
mounted coil or water heating
c o i l. The heat energy removed
from the merchandisers can be
returned for a desired function. A
Check Va l v e assures no back
flow and flooding when Heat
Reclaim Cycle is off. The Heat
Reclaim Cycle removes
superheat from the refrigerant
vapor, then dumps the vapor into
the C o n d e n s e r to discharg e
latent heat and produce quality
liquid for the refrigeration
process.
RECEIVER PRESSURE AND VA P O R
TEMPERATURE REGULATION
Receiver Pressure
The P re s s u re Regulator Va l v e (A9 or A9B
Valve) responds to Receiver pressure. If the
Receiver pressure drops below its set point the
A9 Valve opens, directing Hot High Pressure
Vapor to the Receiver.
Receiver Temperature
During Koolgas Defrost, if the Koolgas
Manifold temperature drops below 85˚F the
A9B Solenoid opens its valve, directing Hot
High Pressure Vapor to the Receiver.
E l e c t r i c a l l y, the circuit is supplied with power
only during Koolgas Defrost. The circuit is
closed by a thermostat responding to Koolgas
Manifold temperature.
REFRIGERATION PROCESS Revised August 1, 1996
2 - 6
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 • Printed in USA
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