Harvest Pressure Regulating (Hpr) System Remote Condenser Only - Koolaire KDT0300A Technician's Handbook

HARVEST PRESSURE REGULATING (HPR) SYSTEM
REMOTE CONDENSER ONLY
GENERAL
The harvest pressure regulating (HPR) system includes:
• Harvest pressure regulating solenoid valve (HPR
solenoid). This is an electrically operated valve which
opens when energized, and closes when de-energized.
• Harvest pressure regulating valve (HPR valve). This is a
pressure regulating valve which modulates open and
closed, based on the refrigerant pressure at the outlet
of the valve. The valve closes completely and stops
refrigerant flow when the pressure at the outlet rises
above the valve setting.
98
HPR VALVE
Part Number STH063 9/17