Figure 1: Mitigation control wiring
Figure 2: DIP switches in on position Figure 3: Test jumper
Field-testing the sensor
1. After wiring and configuring the system, provide a Y call for cooling.
2. Simulate an A2L leak by disconnecting the A2L sensor wire from the A2L control board, or else
move the test jumper from NC (Normally Closed) to Test. Make sure to return the test jumper
to NC once testing is complete. See .
3. After 15 s, verify that the call for the compressor is removed.
4. Verify that the Y output pin has no voltage and that the G output pin has 24 VAC.
5. Reinstall the sensor, then wait 5 min and verify that the system returns to cooling mode.
6. When the system is in standby mode, repeat the above test for a W call for heating.
7. When testing is complete, re-install the front cover on the control box.
Installation Manual: R-454B Outdoor Split-System Air Conditioner14
Johnson Controls Ducted Systems
To Next Page
Loading...
