Redi Controls Redi-Purge PRG-113-C3, Инструкция по установке, эксплуатации и обслуживанию, Страница: 33 / 68

33
“ SENSORS ” Keypad Switch
NOTE: Can be used in conjunction with the DIAG. Switch for system diagnosis.
Used to view the following sensory data:
1) Purge condensing unit compressor suction temperature (Superheat).
Displayed:
Superheat °F
2) Purge tank evaporating temperature.
Displayed:
Evaporator °F
Normal Range - 5º to + 10º F
0º F Typical
3) Purge liquid level status.
Displayed:
Liq level High
or
Liq level Low
“SETTINGS” Keypad Switch
The SETTINGS keypad switch is used to view or set the following purge operating
parameters: (see “Setting Operation Parameters” on page 26)
Purge Fault Time
Fault Bypass Time
Drain Cycle Time
Chiller Cond. Temp. lock out set-point (when option installed)
Chiller Evaporator Pre-Alarm set-point (when option installed)
“BYPASS” Keypad Switch
Used to temporarily bypass “Purge Fault” time. “Purge Fault” time is the maximum allowable
pumpout time during any 24-hour “Sliding Window” period. Fault “Bypass” is generally used
during service procedures or operational checks.
Press Fault “BYPASS” keypad switch to initiate the Fault Bypass mode. The duration of the
Fault Bypass TIME PERIOD is determined by the time entered in the SETTINGS operational
parameters (1 to 72 hours -- see page 26).
At the conclusion of the “Bypass” time period,
the purge will automatically resume normal operation .
Displayed:
Fault Bypassed