39
3. Excessive water hardness causes a lime build-
up inside heat exchanger tubes. To minimize
corrosion effects, adhere to water hardness
level given in Table 15. Refer to Table 16
and 17 for recommended Corrosion/Scale
inhibitors removal agents, suppliers and
treatment options.
IX. Hydronic Piping
(continued)
a. If the water hardness is higher than 15 gpg,
softener should be used.
b. Before connecting the boiler, insure
the system is free of impurities, grease,
sediment, construction dust, dust, and any
residual boiler water additives. .
c. Flush the system thoroughly and repeatedly,
if needed, with clear water mixed with
concentrated rinse agent to remove these
contaminants completely.
G.
Oxygen Contamination
1. Continuous addition of make-up water
will constantly add oxygen to the system
and lead to corrosion. Block oxide sludge
(magnetie , Fe
2
O
3
) forms as a result of
continuous electrolytic corrosion in any
system unprotected by an inhibtor.
2. To minimize oxygen presence in the system,
all system leaks must be repaired immediately.
DO NOT connect the boiler to radiant tubing
without an oxygen barrier.
3. There are many possible causes of oxygen
contamination such as:
a. Addition of excessive make-up water as a
result of system leak
b. Absorption through open tanks and fittings.
c. Oxygen permeable materials in the
distribution system
4. In order to insure long product life, oxygen
sources must be eliminated. This could
be accomplished by taking the following
measures:
a. Repairing system leaks to eliminate the
need for addition of make-up water.
b. Eliminate and/or repair fittings which
allow oxygen absorption.
c. Use of non-permeable materials in the
distribution system.
d. Isolating the boiler from the system water
using an termediate heat exchanger.
e. Using properly designed air elimination
devices in water piping.
WARNING
When using Glycol products, all Glycol
manufacturers’ requirements, including rust
inhibitors, must be adhered to. Maximum 50 %
Glycol.
Thermal Solutions' Standard Warranty does
not cover boiler failure caused by oxygen
contamination of boiler water or scale build-
up.
Содержание BFIT 1000
Страница 9: ...9 Figure 1 BFIT MODEL 1000 2000 ...
Страница 12: ...12 IV BFIT Component Identification continued Figure 2 Component Identification ...
Страница 13: ...13 IV BFIT Component Identification continued Figure 3 Component Identification ...
Страница 52: ...52 Figure 24 Operating Instructions XII System Start up continued ...
Страница 66: ...66 APPENDIX D INLET OUTLET WATER AND FLUE OUTLET TEMPERATURE SENSOR RESISTANCE VOLTAGE CHART ...
Страница 68: ...68 ...
