Manual

Pre-Installation
2
Codes Compliance
Water heater installation 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.
SMART water heaters are exempt from ASME
Section VIII, Division 1 Code construction per
Interpretation VIII-86-136. Check with local codes
for applicability.
SMART Series water heaters will absorb
less than 200,000 BTU/hr when domestic
water outlet temperature is 210ºF 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 SMART 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 domestic hot water temperature
is 194ºF for commercial applications and
140ºF for residential applications.
• Maximum boiler water temperature is
210ºF.
• Maximum working pressure for inner
(domestic water) tank is 150 psig.
• Maximum working pressure for outer
(boiler water) tank is 45 psig.
• pH and chloride limits for water heaters
are:
- chloride, less than 150 mg/l (ppm)
- 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 water heater on any appli-
cation if the boiler piping contains non-oxy-
gen barrier tubing or if the boiler piping is
considered an “open system”. Exposing the
outer tank of the water heater to oxygen
contamination will lead to premature tank
failure and denial of the warranty.
NOTICE
NOTICE
NOTICE