AERCO Esteem Boiler with EZ-Set Controller - Manual (Page 85)

GF-135 Esteem 399 Low NOx Boiler
Chapter 11
OMM-0089_0A Installation, Operation & Maintenance Manual Start-Up Preparation
CHAPTER 11: START-UP PREPARATION
NOTE
Requirements below must be met for warranty coverage of Esteem
heat exchangers. A thorough cleaning of any existing system,
using approved heating system cleaning agents is required prior to
installation of the Esteem boiler. System should be treated with an
approved inhibitor after filling for long term protection.
11.1 CHECK BOILER SYSTEM WATER CHEMISTRY
WARNING!
Do not use petroleum-based cleaning or sealing compounds in the
boiler system. Damage to seals and gaskets in the sys-tem
components could occur, resulting insubstantial property damage.
NOTE
System water including additives must be practically non-toxic,
having a toxicity rating or Class of 1, as listed in Clinical Toxicology
of Commercial Products.
11.1.1 Water pH Level 6.0 to 8.0
Maintain the boiler water pH between 6.0 and 8.0. Check using litmus paper or contact a water
treatment company for a chemical analysis.
If the pH does not meet this requirement, do not operate the Esteem or leave the unit filled until
the condition is corrected.
11.1.2 Water Hardness Less Than 7 Grains
For areas with unusually hard water (hardness above 7 grains) consult a water treatment
company.
11.1.3 Chlorinated Water
Do not use the Esteem 399 to heat a swimming pool or spa directly.
Maintain the chlorine level of the water at levels considered safe for drinking.
11.1.4 Flush Boiler to Remove Sediment
The installer must flush the boiler system to remove any sediment to allow proper operation of
the Esteem 399.
Flush the systems until the water runs clean and is free of sediment.
For zoned systems, each zone should be flushed through a purge valve. Purge valves and
isolation valves should be installed on each zone to allow proper flushing of the system.
Page 85 of 188 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, NY 10913 OMM-0089_0A
MC1 06/19/14 Ph.: 800-526-0288