Purge Switch Open During Purge; Ignition Switch Open During Ignition - Watts Aerco Innovation 800 User Manual

Innovation Hot Water Hot Water Boiler User Manual
ACTUATOR
COVER SCREW

5.10 PURGE SWITCH OPEN DURING PURGE

The Purge switch (and Ignition switch) is located on the Air/Fuel Valve. To check the switch,
proceed as follows:
1. Set the unit's ON/OFF switch to the OFF position. Place the unit in Manual mode and set
the valve position between 25% and 30%.
2. Remove the Air/Fuel Valve cover by rotating the cover counterclockwise to unlock it (see
Figure 5-7).
3. Remove one of the two wires (#171 or #172) from the Purge switch (Figure 5-8).
4. Initiate a unit start sequence.
5. The unit should begin its start sequence, then shut down and display PRG SWITCH
OPEN DURING PURGE.
6. Replace the wire on the Purge switch and depress the CLEAR button. The unit should
restart.

5.11 IGNITION SWITCH OPEN DURING IGNITION

The Ignition switch (and the Purge switch) is located on the Air/Fuel Valve. To check the
switch, proceed as follows:
1. Set the unit's ON/OFF switch to the OFF position.
2. Place the unit in Manual mode and set the valve position between 25% and 30%.
3. Remove the Air/Fuel Valve cover (see Figure 5-7) 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 5-8).
OMM-0120_0A
GF-128-I
CHAPTER 5 – SAFETY DEVICE TESTING
Figure 5-6. SSOV Actuator Cover Location
Purge Switch Open During Purge
Ignition Switch Open During Ignition
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913
Phone: 800-526-0288
- INTERNATIONAL
SSOV
ACTUATOR
COVER
Page 69 of 174
11/15/2016