PRODIGY 21® Gas-fired • Direct Vent • Cast-iron • Hot water boilers

BOILER REPLACEMENT PARTS LIST

For Models KCS-50 and KCS-100

When ordering replacement parts, specify the boiler model number, serial number and gas by name (natural or propane). Parts are available from your local Slant/Fin heating contractor, wholesaler or Slant/Fin Corporation.

Ref.

Description

KCS-50

KCS-100

1

Gas Valve-RS7200 Dern

660520

660520

2

Combustion Blower

660527

660527

3

Electronic Control-United Tech.1013-12

660589

660589

4

Circulator Pump-Taco 007

660561

660561

4A

Circulator Pump-Grundfos UP15-42F

660562

660562

4B

Circulator Pump-B&G NRF-22

660564

660564

5

Air Pressure Switch

651302

651302

6

Low Water Cutoff-Manual Reset

651341

651341

6A

Low Water Cutoff Spring

651342

651342

6B

Water Limit Connector Harness

651343

651343

7

Water High Limit

650564

650564

8

High Limit Well

410674

410674

9

Secondary High Limit (Optional)

660524

660524

10

Temperature/Pressure Gauge

910373061

910373061

11

Pressure Relief Valve

650550

650550

12

Automatic Air Vent

651303

651303

13

Blower Connector Hose

660510150

660510225

14*

Hot Surface Ignitor

660720

660720

14A*

Hot Surface Ignitor Hold-down

660276

660276

14B*

Ignitor Guide Assembly

665038

665038

14C*

Ignitor Perforated Shield

660721

660721

15

Flame Detector

660501

660501

15A

Flame Detector Bracket

660161

660161

15B

Flame Detector Seal

660439

660439

16

24v Transformer

660528

660528

17

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

660598026

660598026

18

Expansion Tank

650536

650539

19

Expansion Tank Connector Tube

651713

651713

20

Water Outlet Manifold

650401

650401

21

Air Pressure Service Fitting

660529

660529

22

Gas Pressure Service Fitting

660530

660530

23

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

660531

660531

24

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

660532

660532

28

Thermostat Terminal Block

660523

660523

29

Safety Circuit 9 Pin Harness

651344

651344

30

Power Supply 3 Pin Harness

660652

660652

31

Flame Sensor Harness

660660

660660

32

Circulator Harness

660653

660653

33

Air Filter 6" x 11"

651306

651306

34

1/4 Turn Fastener

650541

650541

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

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

PUBLICATION NO. P-10PL-B

Part No. 65-2113

Printed in U.S.A. 1100

Page 1
Image 1
Slant/Fin KCS100, KCS50 manual Boiler Replacement Parts List, Description KCS-50 KCS-100

KCS100, KCS50 specifications

Slant/Fin KCS100 and KCS50 are advanced, high-performance gas-fired condensing boilers designed for residential and light commercial applications. These models are part of Slant/Fin's commitment to energy efficiency and eco-friendly heating solutions, providing users with optimal comfort and significant energy savings.

The KCS100 features a robust heating capacity of up to 100,000 BTUs per hour, making it suitable for larger spaces. In contrast, the KCS50 offers a slightly lower capacity, with a maximum output of 50,000 BTUs per hour, ideal for smaller homes or specific heating zones. Both models excel in their compact, space-saving design, allowing for easy installation in tight spaces often encountered in residential settings.

One of the standout technologies in both the KCS100 and KCS50 is their modulating gas valve. This innovative feature allows the boilers to adjust their output based on real-time heating demands, thus maximizing efficiency and minimizing energy waste. Furthermore, these models utilize a stainless steel heat exchanger that enhances durability and improves overall thermal efficiency, providing a longer lifespan and reduced maintenance requirements.

In terms of efficiency, the KCS series boasts an impressive AFUE (Annual Fuel Utilization Efficiency) rating, reaching up to 95%. This means that a significant portion of the fuel consumed is converted into usable heat, translating into lower energy bills for users. Additionally, the advanced condensation technology captures heat from exhaust gases, further boosting efficiency and making these boilers environmentally friendly.

The KCS100 and KCS50 are designed with user convenience in mind. They come equipped with an intuitive control panel, allowing homeowners to easily adjust settings and monitor operation status. Moreover, both models support a range of integration options with existing heating systems, ensuring seamless functionality whether installed as a primary or supplemental heat source.

Safety features are also a priority in the KCS series. They include built-in safety controls that monitor temperature and pressure, helping to prevent potential hazards during operation. This ensures not only a reliable heating solution but also peace of mind for users.

In summary, Slant/Fin's KCS100 and KCS50 gas-fired condensing boilers combine cutting-edge technologies, high efficiency, and user-friendly features, making them excellent choices for anyone seeking reliable, cost-effective heating solutions.