Delta F-25 - Manual (Page 9)

4
Product & Safety Information
OPERATING RESTRICTIONS
• Maximum working pressure for inner
(domestic water) tank is 150 psig.
• Maximum working pressure for outer
(primary water) tank is 45 psig.
• Inner tank has factory installed
Temperature & Pressure Relief Valve
with an AGA rating of 100,000 Btu/hr
for PG-25 and 200,000 Btu/hr for PG-
30/35/40/45.
• Outer tank has a factory installed 30
psig relief valve rated at 535,000 Btu/hr
• Electrical rating:120 V, 60 Hz, less
than 12 amperes
• pH & chloride limits for the ELITE are:
- Chloride, less than 80 mg/l.
- pH, 6.0 - 8.0.
Any water conditioning system must be
installed and maintained in accordance
with manufacturer’s specifications.
• 180º Maximum operating temperature -
primary side.
• 120º Maximum outlet/mixed tempera-
ture - domestic side.
CODE RESTRICTIONS
Single wall heat exchanger in the ELITE
complies with National Standard Plumbing
Code, provided that:
- Outer tank water (including additives)
is practically non-toxic, having toxicity
rating or Class of 1, as listed in Clinical
Toxicology of Commercial Products,
- Outer tank pressure is limited to maxi-
mum 30 psig by approved relief valve.
Single wall heat exchangers are permitted under
the Uniform Plumbing code - Paragraph L3.2. if
they satisfy all of the following requirements.
1. The heat transfer medium is potable
water or contains only substances which
are recognized as safe by the U.S. Food
and Drug Administration.
2. The pressure of the heat transfer medium
is maintained less than the normal mini-
mum operating pressure of the potable
water system
3. The equipment is permanently labeled
to indicate that only additives recog-
nized as safe by the FDA shall be used in
the heat transfer medium.
Or, per Uniform Plumbing Code paragraph L3.3
as follows:
Other heat exchanger designs may be permitted
where approved by the Administrative Authority.
NOTICE