Operation, Turndown – Fulton Endura (EDR) Condensing Hydronic Boiler User Manual
Page 40

© The Fulton Companies 2014
3-6
OPERATION
EDR-IOM-2014-0318
SECTION 3
!
WARNING
Non-Fulton product information is for
reference purposes only. No Fulton
document should substitute for full
review of documentation available
from the component manufacturer.
This boiler is equipped with an
ignition device which automatically
lights the burner. Do not try to light
burner by hand.
13. Once combustion is checked and verifi ed with a combustion analyzer
place the control back into automatic mode and check all boiler safeties.
TABLE 8 - VERIFICATION OF IGNITION ENRICHMENT
Model
Size
Spring
Color
Enrichment Valve Outlet Pressure
1000
silver
4 - 5”w.c.
1500
brown
2.5 - 3.8” w.c.
2000
brown
2.5 - 3.8” w.c.
TABLE 9 - VERIFICATION OF COMBUSTION SETTING
Low Fire
High Fire
O2
5.0 - 5.4%
3.0 - 5.5%
CO2
8.7 - 9.0%
8.0 - 10.0%
Turndown
EDR-1500 and EDR-2000 boilers leave the factory with a default setting of 5:1
turndown; however, 8:1 may be allowable if site conditions permit. EDR-1000
boilers have a default setting of 10:1 turndown.
Please consult a factory-trained representative for guidance.