5
Installation
(continued)
5.
Reinstall front cover panel.
6.
Verify DIP switch settings.
DIP switch settings - S1
Dip switch
number
Setting Explanation
1
OFF Pump is ON during call for
heat. After call for heat
(RT-Terminal) is satisfied
pump post-purges for 12
minutes.
After DHW/external heat
demand (ST-Terminal) is
satisfied, pump post-purges
for 1.5 minutes.
ON Pump operates continuously
2
OFF Do not adjust
3
OFF Do not adjust
4
OFF Do not adjust
S1
Factory default settings
for S1 DIP switch
1
Dip switch S1
