Installation Instructions

Document No. DPD01375

August 24, 2018

Siemens Industry, Inc.

Page 27 of 36

NOTES:

1. Branch circuit protection to be provided by installer, per any National or local code requirements, as applicable.

2. Control and communication wiring should be 300V UL minimum.

3. Communication wiring should be run with maximum separation possible from all other wiring.

4. Essential service mode operates the motor full speed (bypass) with no protection for the motor or system.

5. See the Siemens BT300 Variable Frequency Drive Bypass Operator’s Manual (DPD01391) for proper fuse and wire sizes.

6. See the Siemens BT300 HVAC Operator’s Manual (DPD01809) for BT300 input/output control signal wiring details.

Figure 35. Conventional Bypass Relay/Diagnostic Board Terminations.