Installation / Operation Instruction Manual

Specifications continued-

NOTICE

If the boiler takes longer to heat up from a cold start than the water

availability as noted above, hot water shortage may occur.

Hot water availability is based off drawing 80% of the heated tank

volume at 4 gallons per minute flow rate.

The maximum heat transfer through the coil (heat input) of the

water heater at 240°F boiler water supply temperature and 210°F

potable water temperature is 94,100 Btu/hr for residential models

and 180,300 Btu/hr for commercial models. Potable water

temperature is limited to below 210°F and nominal water-containing

capacity is below 120 gallons for all indirect-fired models.

Accordingly, per Part HLW-101.2, Section IV of the ASME Boiler

and Pressure Vessel Code, all indirect-fired products listed are

exempted from compliance with the code.

SECTION III

GENERAL INFORMATION

FEATURES

This water heater contains the following features:

HEAT EXCHANGER – The heat exchanger (coil) has 1” NPT female

fittings.

These water heaters with single-wall heat exchangers meets the

Uniform Plumbing Code for installation in all potable water systems

provided that:

• The boiler water (including additives) is practically non-toxic,

having toxicity rating of class of 1 as listed in Clinical Toxicology

of Commercial Products.

• The boiler water pressure is limited to maximum 30 psig by

approved relief valve.

• The heat transfer medium is potable water or contains only

substances that are recognized as safe by the U.S. Food and Drug

Administration (FDA).

• The pressure of the heat transfer medium is maintained less than

the normal minimum operating pressure of the potable water

system.

• The equipment is permanently labeled to indicate that only

additives recognized as safe by the FDA shall be used in the heat

transfer medium.