Hubbell Electric Heater BW User Manual

Master Specication: Model BW

ISO 9001:200 8

ISO

MadeintheU.S.A.

JOB NAME

REPRESENTATIVE

GENERAL

Provide a quantity of

packaged type indirect fired storage heater(s) Model No. as manufactured

ENGINEER

CONTRACTOR

by HUBBELL Electric Heater Co., Stratford, CT. The pressure vessel shall be mounted on structural supports and be suitably insulated,
jacketed, painted and provided with lifting lugs. The entire unit is to be packaged ready for service connections.

PRESSURE VESSEL

The pressure vessel shall be all welded construction and ASME Code Section VIII stamped for a working pressure of 125 psi

Optional Specification:

(

be carbon steel and lined with seamless Hydrastone cement to a minimum thickness of

Optional Specifications: Phenolic lined steel tank, Hot dipped galvanized steel tank, Type 304 or 316L stainless steel tank, 90/10

(

psi ) and contain a minimum of gallons of storage. The storage vessel shall

5

/8" on 100% of all interior tank surfaces

Copper-nickel tank ). The pressure vessel is to be insulated with 3" thick energy conservation fiberglass blanket insulation and enclosed
in a heavy gauge galvanized steel metal jacket finished in gray hammertone enamel. The vessel shall be protected by an ASME approved
automatic reseating combination temperature and pressure relief valve set at the tank working pressure and 210

o

F.

HEATING SECTION

The heating coil shall be rated to heat GPH from oF to oF when supplied with GPM of boiler
water (

Optional Specification: HTHW ) from

heating coil shall be constructed from copper tubes (
non-ferrous wetted parts and designed for a maximum allowable working pressure of 150 psi at 275
psi at 450

o

F ) maximum temperature. The coil head shall be fabricated steel (

oF to oF. The single wall (

Optional Specifications: 90/10 Copper-nickel, admiralty, stainless steel ) with all

Optional Specification: Stainless steel, copper alloy ).

Optional Specification: double wall )

o

F (

Optional Specification: 400

CONTROLS

The water heater shall (shall not) be factory assembled and piped with a boiler water control valve. The boiler water control valve shall be
(Specify: Electric or Pneumatic) powered modulating 3-way diverting valve that will regulate the flow of boiler water to the heating coil
and will divert unused boiler water back to the loop (

Optional Specification: ON/OFF modulating 2-way valve will regulate the flow of

boiler water to the heating coil without diverting back to the boiler, factory wired thermostat to provide ON/OFF control of a (supplied, not
supplied) boiler water pump.

In addition, the water heater may be supplied with the following optional features:

Option Domestic water dial temperature and pressure gauge shall be factory installed in the tank.

Option The water heater shall be equipped with a factory packaged intra-tank circulator to continuously circulate water within

the tank to reduce stratification.

Option The heating coil shall be wrapped and baffled and piped with an integral pump package to force circulate water over

the heating coil in order to reduce the coil size.

Option Single solenoid safety system to close the boiler water supply to the heating coil should the water temperature in the

tank reach the hi-limit set point. Requires 5 Amp, 120 Volt service.

Option Double solenoid safety system dumps over heated water in the storage tank to drain in addition to closing the boiler

water supply to the control valve. Requires 5 Amp, 120 Volt service.

WARRANTY

HUBBELL shall warranty all components against defects in workmanship and material for a period of one (1) year from date of start-up
and the pressure vessel for a full five (5) years Non Pro-Rated (
start-up, provided that the unit is started within three (3) months of date of shipment and installed and operated within the scope of the tank
design and operating capability. Each water heater shall be shipped with a complete set of installation and operating instructions including a
spare parts list and approved drawing.

Optional Specification: full ten (10) years Non Pro-Rated ) from date of

The Electric Heater Company

Continuing research results in product improvement; therefore specications are subject to

change without notice. For the most updated information, consult the factory directly.

■P.O. Box 288 ■ Stratford, CT 06615-0288 ■ Phone: [phone] ■ Fax: [phone]

[e-mail]

Committed to continuous improvement...

■ www.hubbellheaters.com

7