Crown Boiler Troubleshooting, Gas Valve Info, and Parts Diagrams

Page 33

 

 

 

 

 

 

 

Do burners

 

 

 

Do burner and

 

 

 

 

Main

Y

shut dow n before

Y

 

 

Y

 

 

circulator shut

 

 

burners

 

 

 

 

gage temp

 

 

 

 

 

 

 

END

 

 

 

 

 

 

 

 

dow n at end of

 

 

 

light?

 

 

exceeds high limit

 

 

 

 

 

 

 

 

 

 

 

 

call for heat?

 

 

 

 

 

 

 

 

 

 

 

setting +15F?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

N

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 volts

N

 

 

*Defective damper

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

across

 

 

 

 

*Defective L8148E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

B1&B2?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Defective damper

 

 

*Defective

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

 

 

 

 

 

 

 

 

L8148A

 

 

 

 

 

 

 

 

 

 

 

 

harness

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Sensing bulb not

 

 

 

 

 

 

 

 

 

 

 

 

 

*Loose damper

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

bottomed out in

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

harness connection

 

 

w ell

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 volts across

 

 

*Obstruction in path

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

of damper blade

 

 

 

 

 

 

 

 

 

 

standing pilot gas

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

valve terminals or

 

 

 

 

 

 

 

 

 

 

 

Pull w ire off of T

N

 

 

 

 

 

 

 

 

 

 

 

terminals

5&6 on

 

 

 

 

 

 

Refer to standing pilot or

 

 

 

 

Y

 

 

 

 

 

 

terminal on

 

 

 

S8600 module?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

intermittent ignition

 

 

aquastat. Does

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

troubleshooting chart

 

boiler shut dow n?

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(page 32 or 33).

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 volts

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Chimney blockage

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

across spill

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

sw itch?

 

 

 

 

 

 

 

 

 

*Chimney system not

 

 

*T'stat or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

constructed in accordance

 

 

zone valve

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

w ith Parts 7 and 11 of

 

 

w iring calling

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 volts

 

 

 

 

 

 

 

 

 

National Fuel Gas Code.

 

 

for heat

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Dow n draft

 

 

*T'stat w ires

 

 

 

 

 

across

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

shorted

 

 

 

 

 

rollout

 

 

 

 

 

 

 

 

 

*Inadequate combustion air

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

sw itch?

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

supply in boiler room

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Rollout sw itch open.

 

 

 

 

 

*Internal boiler

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

*Loose electrical

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replace w ith exact

 

 

 

 

 

w iring

 

 

connection in 24

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

replacement (see parts

 

 

 

 

 

problem,

 

 

 

 

 

 

 

 

 

 

 

 

 

 

volt w iring

 

 

 

 

 

 

 

 

 

list). Check for blocked

 

 

 

 

 

consult Crow n

 

 

betw een B1 or B2

 

 

 

 

 

 

 

heat exchanger.

 

 

 

 

 

representative

 

 

and gas valve or

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

module

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

33

31

Image 33
Contents Crown Inside Front Cover Leave Blank Table of Contents II SpecificationsProduct Description Bleftpipedconfiguration Specifications IV Locating the Boiler III Before InstallingFor Buildings of Other than Unusually Tight Construction Air for Combustion and VentilationExample ALL AIR from Outdoors Ventilated Crawl Space and Attic For Buildings of Unusually Tight ConstructionVI Venting ALL AIR from OUTDOORS, Using Openings Into Boiler RoomTypicalventsystem Installation and Components 1210 Removing an Existing Boiler from a Common ChimneyGAS Connection to Boiler VII Gas PipingStandardPiping Viii System PipingStandard Boiler Piping Piping for Special SituationsIndirect Water Heater Boiler Bypass Piping Single Zone Wiring IX WiringWiring DIAGRAM, Continuous Ignition Circulator Zonewiring Using HONEYWELLR845As Wiring VariationsSequence of Operation, Standing Pilot AWI/TWI Control System Sequence of OperationSequence of Operation, Intermittent Ignition Start-up and Checkout Page Standing Pilot Burner Flame For Your Safety Read Before Operating For Your Safety Read Before Lighting GAS Valve Detail Standing Pilot XI Service and Maintenance Heat Exchanger Cleaning Procedure XII Troubleshooting AWI/TWI Troubleshooting Chart END Standing Pilot Ignition System Troubleshooting Chart Intermittent Ignition System Troubleshooting Chart Xiii Parts Base-Block-Hood Below 2000 ft Burner Components KEY # Description QTY. or Quantity PER Boiler or Crown P.N Jacket/Components Crown

AWI262, AWI095, TWI095, AWI195, AWI037 specifications

Crown Boiler is a renowned name in the heating industry, providing high-quality, efficient heating solutions that cater to various residential and commercial needs. Among its impressive lineup, the AWI and TWI series stand out for their design, technology, and performance.

The Crown Boiler AWI061 and TWI061 are part of the Hydronic Boiler range, designed to deliver efficient hot water heating. The AWI series features an advanced pressure-jet design that allows it to operate with exceptional fuel efficiency, reducing operating costs for homeowners and businesses alike. Additionally, these models come equipped with an integrated pump system that ensures a consistent supply of hot water, making them ideal for both space heating and domestic hot water applications.

Meanwhile, the AWI162 and AWI128 models are engineered for higher output, addressing larger heating needs without compromising efficiency. These models showcase a robust heat exchanger made of durable cast iron, promoting longevity and effective heat transfer. The AWI series boilers feature a modern control system that allows for precise temperature management, enhancing comfort while minimizing energy consumption.

The Crown Boiler AWI295, on the other hand, steps up with a significant heating capacity suited for commercial applications. This model is designed with advanced safety and efficiency technologies, including an intelligent control module that monitors temperature and pressure, ensuring optimal performance while preventing malfunctions. The large water volume design allows for enhanced thermal stability and consistent heating output.

A notable characteristic across these models is their ease of installation and maintenance. Crown Boiler has engineered the units with user-friendly features, including accessible components and simplified diagnostics that help technicians service the boilers swiftly. Moreover, the durability of cast iron construction ensures that these units can withstand high thermal stress while delivering reliable performance over the years.

In summary, Crown Boiler’s AWI061, TWI061, AWI162, AWI128, and AWI295 models offer a range of solutions equipped with advanced technologies and features designed for efficiency and reliability. These boilers are suitable for diverse heating needs, promising optimal comfort and convenience in both residential and commercial settings. With Crown Boiler's longstanding commitment to quality, customers can be assured of a robust heating solution backed by exceptional service.