Install Instructions

20
e. A hot water boiler installed above radiation level
must be provided with a low water cutoff device
as part of the installation. See Appendix A, Low
Water Cut-Off for additional details.
3. Steam Boiler
a. For Recommended STEAM BOILER PIPING
refer to Figure 13. Also, consult I=B=R,
"Residential Hydronic Heating Installation and
Design Guide".
b. Evaluate the Existing Steam System.
The single most important factor in determining
the expected life cycle of a steam boiler, is
the amount of fresh water added to the boiler
during operation. Fresh water brings minerals
and oxygen into the boiler. These contaminants
greatly accelerate corrosion of the cast iron
boiler sections.
i. Assure that all system radiators, piping and
vents are absolutely leak tight.
• When a steam boiler is installed in an
existing system, ALL air vents should be
replaced at the same time. This assures
that the new boiler will not be
compromised by existing system leaks.
• If the system contains hidden supply or
return piping (hidden behind walls, buried
in concrete, etc.) pressure test this piping
to assure there are no leaks.
ii. Repair any leaks in the system.
iii. Install accurate water meter on the fresh
water supply to the boiler.
NOTICE
DO NOT use softened water in steam boilers.
Accelerated boiler corrosion will result. Tie in
fresh water supply to the boiler upstream of a
water softener.
4. Osygen Contamination:
a. There are many possible causes of oxygen
contamination such as:
i. Addition of excessive make-up water as a
result of system leaks.
ii. Absorption through open tanks and ttings.
iii. Oxygen permeable materials in the
distribution system.
b. In order to insure long product life, oxygen
sources should be eliminated. This can be
accomplished by taking the following measures:
i. Repairing system leaks to eliminate the need
for addition of make-up water.
ii. Eliminating open tanks from the system.
Boiler
Series
Rating (Gal/Min) Pressure Drop (PSI)
Steam Water Steam Water
CL3-091 2.25 2.75 2.3 3.9
CL3-105 2.25 3.00 2.3 4.7
CL3-140 2.50 3.25 3.1 5.6
CL4-126 2.50 3.25 3.1 5.6
CL4-175 2.75 3.75 3.9 7.2
CL4-210 3.00 4.00 4.7 8.0
CL5-168 2.75 3.50 3.9 6.4
CL5-245 3.25 4.25 5.6 8.8
CL5-280 3.50 4.75 6.4 9.6
TABLE 4: TANKLESS HEATER DATA
III: INSTALLATION INSTRUCTIONS (continued)
Figure 15: Schematic Tankless Heater Piping
iii. Eliminating and/or repairing ttings which
allow oxygen absorption.
iv. Use of non-permeable materials in the
distribution system.
v. Isolating the boiler from the system water by
installing a heat exchanger.
See Section VII, Paragraph B, Step 3 for additional
details.
CAUTION
Oxygen contamination of the boiler water
will cause corrosion of iron and steel boiler
components, and can lead to boiler failure. New
Yorker's Standard Warranty does not cover
problems caused by oxygen contamination of
boiler water or scale (lime) build-up caused by
frequent addition of water.
J. CONNECT TANKLESS HEATER PIPING AS
SHOWN IN FIGURE 15. See Table 4 for Tankless
Heater Ratings.