RKI Instruments GD-K77D - Manual (Page 17)

Model GD-K77D Operator’s Manual Installation • 12
Removing the Model GD-K77D Detector Unit
When connecting tubing, making electrical connections, or servicing the Model GD-K77D,
it is more convenient to remove the Model GD-K77D detector unit from its wall mounting
bracket.
Figure 5: Removing the Detector Unit
1. Loosen the large screw on the front of the unit and remove the cover.
2. Loosen the screw on the lower part of the unit.
3. Remove the Model GD-K77D detector unit from the wall mounting bracket.
NOTE: When returning the Model GD-K77D detector unit to the wall mounting bracket,
assemble the unit in reverse order.
Electrical Connections
CAUTION: Unstable power or power with electrical noise may cause the Model GD-K77D to give
false readings or to trigger a false alarm. When connecting the Model GD-K77D to a
power source, carefully follow the instructions in this manual.
During warm up at power on and during a power failure, unwanted alarms may occur
depending on the relay logic and wiring used. Take any steps necessary to address this
situation.
Loosen this
screw