CB SERIES

CONCEPT 21Gas-fired • Sealed Combustion

Cast-iron • Hot water boilers

BOILER REPLACEMENT PARTS LIST

When ordering replacement parts, specify the boiler model number, serial number and gas by name (natural or propane). For replacement parts, heating contractors should contact their Slant/Fin boiler distributor.

Ref

Description

CB-45

CB-90

CB-135

CB-180

1

Gas Valve-RS7200 Dern

660520

660520

660520

660520

2

Combustion Blower

660527

660527

660527

660527

3†

Electronic Control-U.T.1013-12

660589

660589

660589

660589

4

Circulator Pump-Taco 007

660561

660561

660561

660561

4A

Circulator Pump-Grundfos UP15-42F

660562

660562

660562

660562

4B

Circulator Pump-B&G NRF-22

660564

660564

660564

660564

5

Air Press. Switch (Standard, .12" set)

651302

651302

651302

651302

5A

Air Press. Switch (Cat. I, .50" set)

660591

660591

660591

660591

6

24 Volt Transformer

660528

660528

660528

660528

7

Water High Limit

410699

410699

410699

410699

8

High Limit Well

660507

660507

660507

660507

9

Secondary High Limit (optional)

660524

660524

660524

660524

10

Temperature/Pressure Gauge

910373061

910373061

910373061

910373061

11

Pressure Relief Valve (30 psi)

650550

650550

650550

650550

12

Automatic Air Vent

410547

410547

410547

410547

13

Blower Connector Hose

660510350

66051045

660510525

660510625

14*

Hot Surface Ignitor

660720

660720

660720

660720

14A*

Hot Surface Ignitor Hold-down

660276

660276

660276

660276

14B*

Ignitor Guide Assembly

665038

665038

665038

665038

14C*

Ignitor Perforated Shield

660721

660721

660721

660721

15

Flame Detector

660501

660501

660501

660501

15A

Flame Detector Bracket

660161

660161

660161

660161

15B

Flame Detector Seal

660439

660439

660439

660439

16

Silicone Tubing 1/8" I.D. x 26" long

660598026

660598026

660598026

660598026

19

Thermostat Terminal Block

660523

660523

660523

660523

20

Water Outlet Manifold

660005

660005

660005

660005

21

Air Pressure Service Fitting

660529

660529

660529

660529

22

Gas Pressure Service Fitting

660530

660530

660530

660530

23

Clear Tubing 1/8" I.D. x 8" long

660531

660531

660531

660531

24

Clear Tubing 3/16" I.D. x 8" long

660532

660532

660532

660532

28

Flame Sensor Harness

660660

660660

660660

660660

29

Safety Circuit 9 Pin Harness

660650

660650

660650

660650

30

Power Supply Harness

660652

660652

660652

660652

31

Circulator Board Harness

660653

660653

660653

660653

32

Circulator External Harness

660655

660655

660655

660655

33

Air Filter Box Assembly

665007

665007

665007

665007

34

Air Filter 10" x 12"

660515

660515

660515

660515

 

 

 

 

 

 

*Special Note on Reference Item #14: This Hot Surface Ignitor part number is only for use with Concept 21 boilers which incorporate an air-cooled ignitor guide and perforated shield. Refer to identification label above ignitor on boiler.

†For replacing the Ram Electronics control on older model boilers, contact Slant/Fin Technical Service Department for the U.T. 1013-12 control kit available.

This parts list must be left with owner, hung on or adjacent to the boiler. Owner should retain parts list for future reference.

PUBLICATION CB-10PL

Part No. 66-1003

Rev. G

Page 1
Image 1
Slant/Fin CB Series manual Boiler Replacement Parts List, Description CB-45 CB-90 CB-135 CB-180

CB Series specifications

The Slant/Fin CB Series represents a powerful and efficient range of residential and commercial cast iron boilers designed specifically for heating applications. Known for their robust construction and advanced technology, these boilers are ideal for various heating needs, providing comfort and reliability to users.

One of the standout features of the CB Series is its heavy-duty cast iron construction. This material is renowned for its durability and excellent thermal retention, allowing the boiler to maintain heat for extended periods while minimizing energy consumption. The cast iron design also enhances the unit's longevity, making it a smart investment for homeowners and businesses alike.

The CB Series boilers come equipped with a high-efficiency design that contributes to lower fuel costs. Utilizing an advanced gas-fired burner, these units deliver maximum heat output while adhering to stringent efficiency standards. Their ability to achieve an AFUE (Annual Fuel Utilization Efficiency) rating of up to 83% means that users can enjoy considerable savings on their heating bills over time.

Additional technological advancements in the CB Series include an integrated digital control system that ensures precise temperature regulation, allowing for enhanced comfort and efficiency. Users can easily adjust settings to meet specific heating requirements, promoting energy savings and optimal performance.

Safety is a top priority with the Slant/Fin CB Series. Each boiler is designed with multiple safety features, including an automatic safety shutdown system, to prevent overheating and ensure user protection. This focus on safety, combined with the heavy-duty design, provides peace of mind to users.

Another significant characteristic of the CB Series is its versatility. It can be used with a variety of heating systems, including hot water radiators, baseboards, and in-floor heating. This adaptability makes the CB Series suitable for both new installations and replacements in existing systems.

Furthermore, the CB Series is recognized for its quiet operation, minimizing noise disturbances, which is essential in residential settings. This feature combined with its efficient heating capabilities makes it a preferred choice among homeowners looking for a dependable heating solution.

In summary, the Slant/Fin CB Series offers a compelling combination of durability, efficiency, safety, and versatility. With its heavy-duty cast iron construction and advanced technology, it stands out as a reliable choice for anyone seeking a high-performance boiler for their heating needs.