18
RSMZ Technical Guide
SEQUENCE OF OPERATIONS
Alarm Lockouts
Alarm Lockouts
Low/Unsafe Suction Pressure Lockout
If a low Suction Pressure fault or unsafe Suction Pressure fault
occurs three times in a two-hour time period, the circuit will be
disabled and locked out until the module is reset.
Low Refrigerant Oil Level Lockout
If an oil boost cycle is performed and the oil level is not detected
for one minute, the circuit will be disabled and locked out until
the module is reset.
High Discharge Pressure Lockout
If a high Discharge Pressure fault occurs three times in a two-
hour time period, the circuit will be disabled and locked out until
the module is reset.
Low Superheat Lockout
If a low superheat fault occurs three times in a two-hour time
period, the circuit will be disabled and locked out until the
module is reset.
High Superheat Lockout
If a high superheat fault occurs three times in a two-hour time
period, the circuit will be disabled and locked out until the
module is reset.
High Evaporating Temperature Lockout
If a high evaporating temperature fault occurs three times in a
two-hour time period, the circuit will be disabled and locked out
until the module is reset.
High Discharge Line Temperature Lockout
If a high Discharge Line Temperature fault occurs three times in
a two-hour time period, the circuit will be disabled and locked
out until the module is reset.