55
START-UP PROCEDURE
H. TEST OPERATING LIMIT
Check that the burner will shut down when the supply
water temperature reaches the control se 9°F (5°C).
1. Enter the “Installer Menu” by pressing and holding the
“Select” & “Menu” keys simultaneously for 3 seconds:
a. Enter the “Main Menu”
• “System Test”
• “Test State”
g
“High Power”
b. The burner will ignite and after a short stabilization
period, run at 100% of modulation.
2. On the LCD display for each burner, note the boiler
setpoint by accessing the User Menu:
a. Enter the “Main Menu”
• “Settings”
• “Boiler Settings”
• “Boiler Parameters”
b. Use the “
ñ
“ and “
ò
” keys to scroll through the
CH and DHW setpoints (Refer to Appendix B for
an overview of the User Menu).
3. Monitor the boiler temperature on the temperature
gauge (factory supplied for field mounting) and on the
Status display.
a. Enter the “Main Menu”
• “Information”
• “Boiler Status”
b. The boiler should shut down at the boiler setpoint
plus 9°F (5°C).
c. If it does not shut down, turn off the boiler and
contact your PB Heat, LLC representative.
I. TEST HIGH LIMIT
Check that the burner will shut down when the high limit
circuit is open.
1. On the LCD display for the Dependent burner enter the
“Installer Menu” by pressing and holding the “Select”
and “Menu” keys simultaneously for 3 seconds.
a. Enter the “Main Menu”
• “System Test”
• “Test State”
g
“Low Power”
b. The burner will ignite and, after a short stabilization
period, run at 1% modulation
2. Disconnect the wire connection to the high limit (the
4-pin connector located on the supply line header).
a. The burner should shut down immediately and enter
a lockout condition.
b. Press the reset button on the control to enable
normal operation.
c. If it does not shut down turn off the boiler and
contact your PB Heat, LLC representative.
3. Turn System Test mode to “Off” so that the boiler will
modulate correctly in accordance with the load.
Table 9.2: Combustion Settings
CO
2
% Maximum, Nominal and Minimum Allowances
Boiler Model
PFC-625
PFC-750
Gas Type
Natural
LP
Natural
LP
Firing Rate
High Fire
Low Fire
High Fire
Low Fire
High Fire
Low Fire
High Fire
Low Fire
Min
8.6
8.6
9.8
10.3
8.6
8.6
9.6
9.6
Nominal
8.8
8.8
10.0
10.5
8.8
8.8
9.8
9.8
Max
9.0
9.0
10.2
10.7
9.0
9.0
10.0
10.0