Watts Aerco INN 1060N - Safety Pressure Relief Valve Test

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 76 of 170
Ignition Switch Open During Ignition Instructions
1. Set the Controller’s Enable/Disable switch to the Disable position.
2. Put the unit in Manual Mode by going to the Main Menu → Diagnostics → Manual Run
and setting the Manual Mode toggle to Enabled, then set the valve position between 25%
and 30%.
3. Remove the Air/Fuel Valve cover (see Figure 5.11-1) by rotating the cover counterclockwise
to unlock and lift up to remove.
4. Remove one of the two wires (#169 or #170) from the Ignition switch (Figure 5.11-2).
5. Initiate a unit start sequence.
6. The unit should begin its start sequence and then shut down and display Ign Switch Open
During Ignition.
7. Replace the wire on the Ignition switch and press the CLEAR button. The unit should
restart.
Figure 5.11-1: Typical Air/Fuel Valve Cover Location
Figure 5.11-2: Air/Fuel Valve Purge and Ignition Switch Locations
5.12 SAFETY PRESSURE RELIEF VALVE TEST
Test the safety Pressure Relief Valve in accordance with ASME Pressure Vessel Code, Section
VI.
AIR/FUEL VALVE
COVER
(Rotate CCW to
remove)
Ignition
Position
Switch
Purge
Position
Switch
TO BLOWER
VALVE POSITION DIAL
170
169
172
171
AIR/FUEL
VALVE SWITCH
WIRING
BREAKOUT
AIR IN