Manual

3
Codes Compliance
Installation of the Excellence Water Heater must
conform with the instructions in this manual and
where applicable:
• local, state, provincial, and national codes,
laws, regulations and ordinances.
• in Canada - CAN / CGA B149.1 or B149.2
Installation Code.
Excellence water heater is exempt from ASME
Section VIII, Division 1 Code construction per
Interpretation VIII-86-136. Check with local codes
for applicability.
The Excellence water heater will absorb less
than 200,000 BTU/hr when domestic water
outlet temperature is 194ºF and boiler water
supply temperature is 240ºF. Listed outputs
are based on ASME Section VIII
Interpretation VIII-1-86-136.
Where recommendations in this manual differ
from local, or national codes, the local or national
codes take precedence.
Codes Restrictions
Single wall heat exchanger in the Excellence water
heater complies with National Standard Plumbing
Code, provided that:
– boiler water (including additives) is practically
non-toxic, having toxicity rating or class of 1,
as listed in Clinical Toxicology of Commercial
Products, and
– boiler water pressure is limited to maximum
30 psig by approved relief valve.
Single wall heat exchangers are permitted under the
Uniform Plumbing Code - Paragraph L3.2. and L3.3
if they satisfy all of the following requirements.
1. The heat transfer medium is potable water or
contains only substances which are recog-
nized as safe by the U.S. Food and Drug
Administration.
2. The pressure of the heat transfer medium is
maintained less than the normal minimum
operating pressure of the potable water system
Exception: Steam complying with sec-
tion #1 above.
3. The equipment is permanently labeled to
indicate that only additives recognized as
safe by the FDA shall be used in the heat
transfer medium.
Other heat exchanger designs may be permitted
where approved by the Administrative Authority.
Operating Restrictions
• Maximum DHW outlet temperature is
120ºF, when factory supplied mixing valve
is installed.
• Maximum boiler water temperature is
194ºF.
• Maximum working pressure for inner
(domestic water) tank is 150 psig.
• Maximum working pressure for outer
(boiler water) tank is 30 psig.
• pH and chloride limits for water heaters
are:
- chloride, less than 150 mg/l
- pH value min. 6 - max. 8
Any water conditioning system must be
installed and maintained in accordance with
manufacturer’s specifications.
Do not install the Excellence water heater on
any application if the boiler piping contains
non-oxygen barrier tubing or if the boiler
piping is considered an “open system”.
Exposing the outer tank of the Excellence
water heater to oxygen contamination will
lead to premature tank failure and denial of
the warranty.
NOTICE
NOTICE
NOTICE
Pre-Installation