C4 User Manual
October 25, 2021 ©2021 Smartrise Engineering, Inc. All Rights Reserved Page 301
33.3.8.3 Shunt Trip
A shunt output is designed to trip a breaker shutting off the main power to the controller in
case of a fire in the machine room.
The following procedure describes how to set up the parameters in case smoke is detected.
1. Navigate to MAIN MENU | SETUP | FIRE. See Figure 57.
2. From the FIRE SERVICE menu, scroll and select PIT Smoke. See Figure 587.
3. From the PIT SMOKE menu, scroll and select Shunt Trip.
Figure 592: PIT SMOKE Menu – Shunt Trip
4. From the PIT: SHUNT ON RECALL menu, scroll and select On.
Figure 593: PIT: SHUNT ON RECALL Menu
5. Scroll right and press Save.
33.3.9 Alt Machine Room
Alternate machine room parameters are set when a group of elevators have split machine room
and hoistway.
33.3.9.1 Enable Alternate Machine Room
When secondary machine room operation is required, the alternate machine room smoke
needs to be enabled.
The following procedure describes how to enable the alternate machine room smokes.
1. Navigate to MAIN MENU | SETUP | FIRE. See Figure 57.
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