Installation Guide

Part number 550-100-066/0608
71
g a s -f i r e d w at e r b o i l e r — Boiler Manual
Add the correct amount of antifreeze
Determine the freezing temperature needed (to protect against 1.
lowest likely temperature the system water will encounter).
Find the antifreeze concentration by volume needed for this tem-2.
perature from the antifreeze manufacturer’s data.
Add up the volume (gallons) of all system piping and components, 3.
including the expansion tank and boiler. Boiler water content is
listed on page 105. Remember to include expansion tank water
content.
Multiply this volume by the (percent) antifreeze needed to find the 4.
number of gallons of antifreeze to add.
Check inhibitor concentration
Test the pH of a sample of system water at least annually. The pH 1.
of the water mixture must be between 7.0 and 8.5.
If pH is outside this range, the inhibitor level may not be sufficient 2.
to prevent corrosion. Drain system, ush thoroughly with fresh
water, and refill system with clean water.
Test glycol concentration at least annually. If concentra-
tion is low, add antifreeze or drain system and refill with
correct mixture.
3. exceed 50% by volume concentrate of antifreeze.
Recommended antifreeze
Antifreeze Source
ALPHI-11
Weil-McLain
500 Blaine Street
Michigan City, IN 46360-2388
— or —
Hydronic Agencies, Ltd.
15363 117 Ave.
Edmonton, AB T5M 3X4, Canada
Ph 780-452-8661
Fx 780-488-2304
Web www.hydronicagencies.com
Aluminum-Safe
Propylene Glycol
Chemical Specialties, Inc.
4800 N. Washington St. #E
Denver, CO 80216
Ph 303-675-0944
Fx 303-675-0945
e-mail [e-mail]
Rhogard
Rhomar Water Management, Inc.
P. O. Box 229
Springfield, MO 65801
Ph 800-543-5975
Fx 417-862-2610
Web www.rhomarwater.com
Water chemistry
Do not use petroleum-based clean-
ing or sealing compounds in boiler
system. Damage to elastomer seals
and gaskets in system could occur,
resulting in substantial property
damage.
Before filling the boiler and system
with water, verify the following.
Failure to comply could result in
boiler failure or unreliable opera-
tion.
Water pH between 7.0 and 8.5
Maintain boiler water pH between 7.0 and 8.5. 1.
Check with litmus paper or have chemically ana-
lyzed by water treatment company.
If pH differs from above, consult local water treat-2.
ment company for treatment needed.
Hardness less than 7 grains
Consult local water treatment companies for 1.
unusually hard water areas (above 7 grains hard-
ness).
Chlorine concentration must be
LESS THAN 200 ppm
Filling with chlorinated fresh water should be ac-1.
ceptable since drinking water chlorine levels are
typically less than 5 ppm.
Do not use the boiler to directly heat swimming 2.
pool or spa water.
Do not fill boiler or operate with water containing 3.
chlorine in excess of 200 ppm.
Clean system to remove sediment
You must thoroughly ush the system (without 1.
boiler connected) to remove sediment. The high-
efficiency heat exchanger can be damaged by
buildup or corrosion due to sediment.
For zoned systems, flush each zone separately 2.
through a purge valve. (If purge valves and isola-
tion valves are not already installed, install them to
properly clean the system.)
Flush system until water runs clean and you are 3.
sure piping is free of sediment.
Startup — fill the system (continued)