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SAGINAW CONTROL & ENGINEERING • A/C USER MANUAL
Setting temperature units (°C / °F), low temperature alarm and high temperature alarm:
1. Press “PRG” button for 5 seconds to reach the modifiable parameter list.
2. Use ▲ or ▼ to reach the desired parameter:
• C18 for temperature unit of measure
• °C = 0
• °F = 1
• P25 for low temperature alarm threshold (default -10°C / +14°F)
• P26 for high temperature alarm threshold (d55°C / +131°F)
3. Press “SET” on the desired parameter to display the current value.
4. Use ▲ or ▼ to reach the desired value.
5. Pressing “SET” temporarily saves the new value and returns to the parameters list.
6. Repeat steps 2-5 to set other parameters.
7. Press “PRG” for 5 seconds to permanently save the new values.
Test Function
Different test functions can be used depending on the combination of keys pressed. Such tests run for
the duration of 4 minutes.
• “SET+▲” tests Compressor and Ambient Blower relays.
• “SET+▼” tests Alarms and Heater relays
