Innovation - Edge [i] Installation, Operation, Maintenance Manual
CHAPTER 5 – SAFETY DEVICE TESTING
OMM-0143_A • GF-216 • 9/6/2019 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 67 of 170
CHAPTER 5. SAFETY DEVICE TESTING
5.1 INTRODUCTION
Periodic safety device testing is required to ensure that the control system and safety devices
are operating properly. The unit control system comprehensively monitors all combustion-
related safety devices before, during and after the start sequence. The following tests check to
ensure that the system is operating as designed.
Operating controls and safety devices should be tested on a regular basis or following service or
replacement. All testing must conform to local codes.
NOTES:
Manual and Auto modes of operation are required to perform the following tests. It will also
be necessary to remove the front door and side panels from the unit to perform the following
tests.
WARNING!
ELECTRICAL CURRENT OF 110 OR 220 AND 24 VOLTS AC MAY BE USED IN THIS
EQUIPMENT. POWER MUST BE REMOVED PRIOR TO PERFORMING WIRE REMOVAL
OR OTHER TEST PROCEDURES THAT CAN RESULT IN ELECTRICAL SHOCK.
5.2 LOW GAS PRESSURE FAULT TEST
To simulate a low gas pressure fault, refer to Figure 5.2 and proceed as follows:
Low Gas Pressure Fault Test Instructions
1. Refer to Figure 5.2 and ensure that the leak detection ball valve located at the Low Gas
Pressure switch is closed.
2. Remove the 1/4“ plug from the ball valve at the Low Gas Pressure switch.
3. Install a 0 – 16“ W.C. (0 – 4.0 kPa) manometer (or a W.C. gauge) where the 1/4" plug was
removed.
4. Slowly open the ball valve near the Low Gas Pressure switch.
5. Put the unit in Manual Mode by going to the Main Menu → Diagnostics → Manual Run
and setting the Manual Mode toggle to Enabled.
6. Adjust the air/fuel valve position (% open) between 25 and 30%.
7. While the unit is firing, slowly close the external manual gas shut-off valve.
8. The unit should shut down and display a Low Gas Pressure fault message at
approximately 2.6” W.C. (648 Pa). The FAULT indicator should also start flashing.
9. Fully open the external manual gas shut-off valve and press the CLEAR button on the
Controller.
10. The fault message should clear, and the FAULT indicator should go off. The unit should
restart.
11. Upon test completion, close the ball valve and remove the manometer. Replace the 1/4“
plug removed in step 2.
To Next Page
Loading...
