Install Instructions

41
109837-01 - 5/20
PVCG-C
Installation, Operating & Service Manual
rst (Reset) - Used to reset the boiler from a
hard lockout (as an alternative to momentarily
interrupting power to the control). Pressing the up
key will turn rst momentarily to on. When it goes
back off (typically within one or two seconds), the
control is reset.
F-C (Temperature Units ) - Determines whether
temperature units on the S9361A are displayed in
F or C. Note that this selection only applies to the
temperature displayed on the LED shown in Figure
11.1.
bAc (Return to Status mode) - Exits adjustment
mode. Any changes made to the parameters
described above are saved, and become
effective, as soon as they are made; bAc only exits
adjustment mode.
Table 11.7: Examples Of Thermal Purge Operation
Example
#
Call for
Heat
From
Use of DHW
Zone
Thermal Purge
Settings
Boiler
Temp at
Begin
Call Boiler BehaviorTime (Pt)
Start Temp
(St)
1 T- T N/A 2 min. 140F 130
• Heating Circulator starts
immediately
• Burner fires immediately
2 T- T N/A 2 min. 140F 150
• Heating Circulator starts
immediately
• Burner fires when either:
2 minutes have passed
OR
Temperature falls below 140
3 DHW
DHW (dh=dh)
2 min. 140F 150
• DHW Circulator starts immedi-
ately
• Burner fires immediately
4
Heat
T’stat on
DHW
terminals
Heat
(dh=tt2)
2 min. 140F 150
• “DHW” Circulator starts
immediately
• Burner fires when either:
2 minutes have passed
OR
Temperature falls below 140
5 T- T N/A 2 min. 145F 150
• Heating Circulator starts
immediately
• Burner fires when either:
2 minutes have passed
OR
Temperature falls below 145
6 T- T N/A 3 min. 140 150
• Heating Circulator starts imme-
diately
• Burner fires when either:
3 minutes have passed
OR
Temperature falls below 140
11 Operation (continued)