BOGE base control / base control 2
Cost-reduced controller for small packages. It does NOT sequence and has no separator ΔP input — separator changes must be scheduled by hours, not by alarm.
Manufacturer
BOGE
Display
2- or 4-line backlit LCD with 4 keys and status LEDs.
Years produced
~2014 – present on small-frame packages.
Power supply
24 VDC internal PSU.
Ambient range
0 – 45 °C.
Protection rating
IP54 front.
Relay outputs
Main / star / delta, blowdown, alarm.
Used on
- BOGE C-Series (small frame)
- BOGE SLF small direct-drive
- BOGE SL / S 4–15 kW packages
Features
- Load/unload with idle-run timer and auto stop
- Hour meters (total / loaded) and two service timers
- Weekly timer (base control 2)
Interfaces
- Volt-free run & alarm contacts
- Remote start/stop input
- RS-485 (option on base control 2)
Sensor inputs
- Airend discharge temp
- Line pressure
- Motor PTC
Fault code lookup
First checks
- Coolant level and cooler cleanliness
- Thermal valve
- Sensor resistance vs. ambient
First checks
- Reset overload
- PTC continuity
- Starts-per-hour above 6? Increase idle time
First checks
- Verify phases
- Swap two legs
First checks
- Unload setpoint
- Inlet valve
- Transducer drift
First checks
- Perform kit; reset the completed timer
Fault list is non-exhaustive and firmware-dependent. Always confirm against the controller’s on-screen help or OEM manual.
Sensor pin resistance & signal values
Pin-level resistance and signal values for the sensor types this controller uses. Works offline. De-energise the panel and lift one lead before ohming any element.
Wiring notes
- 24 VDC control power
- Remote start/stop is a dry contact — never feed voltage into it
Known issues & field notes
- No trending or event log — capture the fault text before cycling power, it is not stored in detail
Single service code set at commissioning by the dealer.
Manuals & literature
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