Recommended water conditions – Fulton FB-S Horizontal Firetube Boiler User Manual
Page 21
The Fulton Companies*FB-S Series Manual*Version 2010-0820 rev. 3/5/13
Page 21
d) If more than one appliance is connected to a common flue or chimney the cross-
section of the chimney should be adequate for the total volume of combustion
products from the appliances.
e) The total horizontal run of the boiler flue should not exceed 25% of the total
vertical rise. There should be an angle more than 15 degrees for the horizontal
run reducing the resistance of the combustion products and avoid rusting by
accumulating condensation in the flue.
f) The installer should check the draft with a meter at 0 to 0.15” W.C pressure with
the burner off. If the pressure is too low, a balancing damper may be used close
to the flue outlet to regulating the pressure of the draft.
4. Recommended Water Conditions
a) Following are recommendations for feed water and boiler water. Contact your
local water treatment professional for testing and treatment recommendations. It
is very important that a strict water treatment program be followed.
b) It is critical that the boiler pH water chemistry follow the attached schedule
whenever water is in the boiler. Solids that enter in with the feed water will
concentrate in the boiler. A regular schedule of boiler blowdown must be
maintained to prevent high solid concentrations from corroding the vessel or
forming deposits
Carbon Steel
Parameter
Feedwater
Horizontal Boiler/SteamPac Water
pH
7.5-9.5
8.5-10.5
Feedwater
Temperature
140F*
---
Hardness as
CaCO3
< 2ppm
< 15 ppm
Chlorides
---
---
Total Alkalinity
---
< 500 ppm
Total Dissolved
Solids
---
< 3000 ppm
Suspended
Solids
No visual turbidity**
No visual turbidity**
Total Organic
Carbon
No sheen No foam +
No sheen No foam +
Iron
Colorless liquid++
Colorless liquid++
Dissolved
Oxygen
<1 ppm*
ND
Visual Oil
ND
ND
Conductivity
(
µµµµ
S/cm)
---
< 4477
NOTES:
*Feedwater temperatures below 200
o
F will require an oxygen scavenger
** Suspended solids: Take a water sample. After the sample sits for 10 minutes, no solids should be visible.