CAC / BDP BW4RAH-168 User Manual download pdf

BW4 / BW5

Product Data

OIL---FIRED WATER BOILERS

SERIES C

A02217

Fig. 1 -- Model BW4/BW5

Use of the AHRI Certified

Mark indicates a

manufacturer’s participation in the program. For

verification of certification for individual products,

go to www.ahridirectory.org.

Select Models

The modern design and attractive appearance of the models BW4

and BW5 Oil--Fired Water Boilers make them ideal for installation

in any area. The boilers are shipped fully assembled and wired,

including all controls except barometric regulator and circulator

pump. The compact 22--gauge steel cabinet has a baked--on enamel

paint finish for durability. A 1--in. layer of thermal insulation is

applied inside the jacket for protection and thermal efficiency. The

flame retention head burner provides efficient fuel usage. A wet

base cast iron block with thermal pins surrounds the combustion

area for better heat transfer from flue gases to water.

FEATURES

RANGE OF CAPACITIES — BW4 and BW5 boilers are

available in sizes 91,000 to 245,000 BTUH. An additional nozzle

is included to fire the boiler at the next lowest input. Low--fire

accessory kits are required to fire the boilers with Beckett burners

at the 91,000 and 126,000 BTUH input rate.

2012 DOE COMPLIANT — The BW4/BW5 oil--fired boilers

meet all 2012 Department of Energy (DoE) requirements for these

products.

BAROMETRIC DRAFT CONTROL — The factory--supplied

barometric draft control can easily be installed in the vent pipe for

optimum draft and combustion efficiency.

CONTROLS — Factory--wired controls on units with tankless hot

water coil include a triple aquastat relay with high/low limit

protection and circulator control. A factory accessory kit is

available for protection against low water operation which is

required by code.

COMBINATION TRANSFORMER AQUASTAT — A24--v

transformer is combined with the aquastat assembly. The

transformer will supply power efficient to power a 3--zone system

on BW5 models. These units also feature a factory--installed

combination pressure/ temperature gauge and a pressure relief

valve.

COIL OPTIONS — Units are available with or without tankless

heater coil. The coil provides a supply of hot water for normal

domestic purposes or an accessory tankless heater coil can be

added later.

FACTORY INSTALLED FEATURES — A factory--installed

drain is provided should the boiler ever need to be drained. Oil

primary control prevents boiler operation in the event of flame loss.

SECTIONS TESTED — Each section is hydrostatically tested to

50 psig. Individual sections are tested to 125 psig at factory.

Assembledsectionsaretestedto75psigatthefactory.The

maximum allowable pressure is 50 psig for hot water boilers.

EASE OF INSTALLATION — Circulator is shipped pre--wired

with 6 ft BX conduit for easy installation for supply--side pumping.

SOLENOID OIL VALVE — This provides cleaner burning and

quieter operation. Valve is included on all burner types.

SWING BURNER DOOR — This unique design offers

uninhibited access for set--ups, service, and maintaining the burner.

Routine cleaning is also much easier.

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Summary of Contents

Page 1 - Product Data

BW4 / BW5Product DataOIL---FIRED WATER BOILERSSERIES CA02217Fig. 1 -- Model BW4/BW5 USUse of the AHRI Certified TM Mark indicates a manufact

Page 2 - ACCESSORIES

2MODEL NUMBER NOMENCLATUREB W 4 B A H000091AA AA B — BoilerCoolingVariationsAA — StandardType of SystemW — Water SeriesiCombustion/Ignition4 — Oil Bur

Page 3 - CLEARANCES -- IN. (MM)

3WATER FLOW M3/HWATER FLOW GPMTOTAL HEAD FEETTOTAL HEAD METERS0246810123214 8 12 16 20 2412345A06592Fig. 2 -- Water Boiler Circulator CurveDIMENSIONS

Page 4 - RATINGS AND PERFORMANCE

4ELECTRICAL DATAALL MODELSVoltage—Hertz—Phase 115 — 60 — 1Minimum Branch Circuit Wire Size (AWG) 14MaximumFuseSize(Amps) 15Control Circuit Power Avail