Replace Dc Spd - Delta M15A-220 Operation And Installation Manual

Maintenance

5.2.2 Replace DC SPD

1. Turn off the AC and DC power, and wait until the LED indicators turns off.
2. Follow Section 5.1.1 to open the door.
3. Loosen 3 screws, remove wires and disconnect signal cable to take off DC SPD.
4. Install the new DC SPD unit with procedures above in reverse order and
tighten the screw with 0.8 N∙m torque.
5. Follow Section 5.1.2 to close the door.
* Screw torque: 0.8 N•m
Figure 5-7: Steps of changing DC SPD
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