27.01 Addendum 1 PACKET Answers to RFCs v2.docx.pdf

June 16, 2026

Request for Proposal Clarification

27.01 - Natatorium Boiler Replacement – Rochester Adams High School

Addendum 1

QUESTIONS:

1. The Domestic Water Heater Schedule calls out 3-DWH's only 2 are shown. Missing Boiler Room #104? Missing Boiler schedule and specification. Missing Breechings, chimneys, and stacks spec. Exhaust flues& Intakes will need to be ran up the wall. Please provide elevations and sections. CUH-1N is missing from the plans.

Answer: Sheet M 7.05 was issued with the RFP for reference. Refer to sheet M7.03 with the pertinent information on the existing boilers.

2. Provide 2018 mechanical schedule sheet that includes the correct PK boiler information?

Answer: Refer to sheet M7.03 with the pertinent information on the existing boilers.

3. Provide Cleaver Brooks model # to replace the PKs with: Refer to the attached information provided by DJ Conley on the boiler specifications?

Answer: The Cleaver Brooks CFCE model would be "CFCE-700-2000-125-HW". The relief valve would be set at 60 psi, but can be changed if needed by design.

CFCE = Cleaver Brooks Model 700 = Natural Gas 2000 = MBH Input Rating 125 = Boiler Pressure Vessel Design Rating HW = Hot Water Application ("H" code stamp)

4. Clarify desired schedule to have work completed and if mandatory alternate #3 is accepted, that both boilers can be demo'd / removed at the same time?

Answer: If both boilers are to be replaced, then they would have to be completed one at a time to keep one boiler active or wait to replace them after the heating season when the boilers are not needed.

5. Clarify intent for primary pump CP-1N (the one that currently runs) if mandatory alternate #3 is accepted. i.e. should it be rebuilt / replaced or shall existing remain?

Answer: Pump CP-1N is to remain.

6. Provide CSI point of contact?

Answer: Scott Claerhout / East Branch Manager: e-mail: Sclaerhout@csibas.com , Office: 248 434-6270, Mobile 248 420-4340 Address: 1618 Star-Batt Drive, Rochester Hills, MI 48309.

7. Provide Pre-bid attendee list?

Answer: See attached attendance list.

2015-074

SHEET NUMBER

PROJECT NUMBER

SHEET

PROJECT

DRAWN

APPROVED

CHECKED

ISSUE DATE ISSUED FOR

KEY PLAN

Rochester Community

Michigan Rochester Hills, Adams High School Schools associates

F 248.656.7746 T 248.656.1377 48307 Rochester, MI

FRENCH

architects planners interiors

5145 Livernois, Suite 100

Troy, Michigan 48098-3276

Tel: 248-879-5666 Fax: 248-879-0007 www.PeterBassoAssociates.com

CONSULTING ENGINEERS

Peter Basso Associates Inc

PBA Project No.: 2016-0105

236 Mill Street

Remodel

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DUCT SYSTEM APPLICATION SCHEDULE

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DUCT MATERIAL

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AIR SYSTEMS

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G90 GALV. SHEET METAL

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DOUBLE-WALL LINED G90 GALV. SHEET METAL (SOLID INNER WALL)

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DOUBLE-WALL LINED G90 GALV. SHEET METAL (PERF. INNER WALL)

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G90 GALV. SHEET METAL WITH 1-INCH LINING

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GALVANNEALED SHEET METAL

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ALUMINUM

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TYPE 304 STAINLESS STEEL

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TYPE 316 STAINLESS STEEL

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PVC COATED GALV. SHEET METAL (4X1)

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PVC COATED GALV. SHEET METAL (1X4)

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PVC COATED GALV. SHEET METAL (4X4)

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16 GA. CARBON STEEL

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ZERO-CLEARANCE PREFABRICATED RANGE HOOD EXHAUST DUCT

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FABRIC

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DESIGN PRESSURE CLASS (INCHES WG)

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SEAL CLASS

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MAX. ALLOWABLE LEAKAGE RATE (PERCENT)

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KEYED NOTES

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SUPPLY AIR WITHOUT TERMINAL UNITS

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RETURN AIR WITHOUT TERMINAL UNITS

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EXHAUST AIR WITHOUT TERMINAL UNITS

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SUPPLY AIR UPSTREAM OF TERMINAL UNITS

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SUPPLY AIR DOWNSTREAM OF TERMINAL UNITS

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LOCKER ROOM AND WET AREA EXHAUST

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AIR TRANSFER DUCT

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OUTSIDE AIR AND MIXED AIR DUCT

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OUTSIDE AIR, RELIEF AIR AND EXHAUST AIR PLENUMS ADJACENT TO EXTERIOR LOUVERS

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AutoCAD SHX Text GENERAL NOTES 1. 'X' INDICATES ACCEPTABLE SELECTION. IF MORE THAN ONE SELECTION IS INDICATED FOR A DUCT SYSTEM, CONTRACTOR MAY SELECT FROM THOSE INDICATED SELECTIONS. 2. 4 X 1 PVC-COATED GALVANIZED STEEL: FACTORY-APPLIED PVC COATINGS SHALL BE 4 MILS (0.10 MM) THICK ON EXTERIOR SHEET METAL SURFACES OF DUCTS AND FITTINGS EXPOSED TO CORROSIVE CONDITIONS AND MINIMUM 1 MIL (0.025 MM) THICK ON INTERIOR SURFACES. 3. 1 X 4 (4 X 1 REVERSE COATED) PVC-COATED GALVANIZED STEEL: FACTORY-APPLIED PVC COATINGS SHALL BE 4 MILS (0.10 MM) THICK ON INTERIOR SHEET METAL SURFACES OF DUCTS AND FITTINGS EXPOSED TO CORROSIVE CONDITIONS AND MINIMUM 1 MIL (0.025 MM) THICK ON EXTERIOR SURFACES. 4. 4 X 4 PVC-COATED GALVANIZED STEEL: FACTORY-APPLIED PVC COATINGS SHALL BE 4 MILS (0.10 MM) THICK ON SHEET METAL SURFACES OF DUCTS AND FITTINGS EXPOSED TO CORROSIVE CONDITIONS AND 4 MILS (0.10 MM) THICK ON OPPOSITE SURFACES. KEYED NOTES A. SCREWS, DAMPERS, OR PROJECTIONS OF ANY TYPE ON INTERIOR OF DUCT SURFACE ARE PROHIBITED. B. DUCT SHALL BE LINED WITHIN 25 FEET UPSTREAM OF FANS. C. ALL WELDED CONSTRUCTION.

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DUCT SYSTEM INSULATION APPLICATION SCHEDULE

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INSULATION MATERIAL & THICKNESS (INCHES)

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FIELD APPLIED JACKET MATERIAL

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FIBERGLASS BLANKET 0.75 LB/CU FT

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FIBERGLASS BLANKET 1.0 LB/CU FT

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FIBERGLASS BOARD 2.25 LB/CU FT

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FIBERGLASS BOARD 6.0 LB/CU FT

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FLEXIBLE ELASTOMERIC

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ASTM E2336 2-HOUR FIRE RATED BLANKET

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2-HOUR FIRE RATED BLANKET

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KEYED NOTES

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ALUMINUM

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SELF-ADHESIVE (FOR OUTDOOR APPLICATIONS)

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DUCT SYSTEMS LOCATED INDOORS

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SUPPLY AIR, EXCEPT AS NOTED BELOW

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RETURN AIR IN UNVENTED ATTICS ABOVE INSULATED CEILINGS

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AutoCAD SHX Text PLENUMS, DUCTS, AND DUCT ACCESSORIES NOT REQUIRING INSULATION: FIBROUS-GLASS DUCTS DOUBLE-WALL METAL DUCTS WITH INSULATION OF SUFFICIENT THICKNESS TO COMPLY WITH ENERGY CODE AND ASHRAE/IESNA 90.1 - 2007 METAL DUCTS WITH DUCT LINER OF SUFFICIENT THICKNESS TO COMPLY WITH ENERGY CODE AND ASHRAE/IESNA 90.1 - 2007 EXPOSED SUPPLY DUCT IN CONDITIONED SPACE SERVED BY THAT SYSTEM FABRIC SUPPLY DUCTS FACTORY-INSULATED FLEXIBLE DUCTS FACTORY-INSULATED PLENUMS AND CASINGS FLEXIBLE CONNECTORS VIBRATION-CONTROL DEVICES FACTORY-INSULATED ACCESS PANELS AND DOORS

AutoCAD SHX Text GENERAL NOTES 1. 'X' OR THICKNESS IN INCHES INDICATE ACCEPTABLE SELECTION. IF MORE THAN ONE SELECTION IS INDICATED FOR A DUCT SYSTEM, CONTRACTOR MAY SELECT FROM THOSE INDICATED SELECTIONS. 2. REFER TO METAL DUCT SECTION OF SPECIFICATIONS FOR DUCT LINING AND DOUBLE-WALL INSULATED DUCT. 3. REFER TO HVAC CASINGS SECTION OF SPECIFICATIONS FOR DOUBLE-WALL INSULATED PLENUMS. KEYED NOTES A. INCLUDE INSULATION AROUND DUCT MOUNTED COILS AND AIR TERMINAL UNIT COILS. B. NUMBER OF LAYERS AND TOTAL INSULATION THICKNESS AS RECOMMENDED BY SELECTED MANUFACTURER. C. DOES NOT APPLY TO PREFABRICATED, ZERO-CLEARANCE GREASE DUCT. D. PROVIDE MANUFACTURER'S RECOMMENDED PROTECTIVE COATING FOR FLEXIBLE ELASTOMERIC THERMAL DUCT INSULATION. E. INSULATE DUCTWORK IN CRAWLSPACES, VENTILATED ATTICS, AND PARKING GARAGES HAVING NATURAL OR MECHANICAL VENTILATION THE SAME AS OUTDOOR DUCTWORK.

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PACKAGED AIR COOLED LIQUID CHILLER SCHEDULE

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UNIT NUMBER

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CAPACITY TONS

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CHILLED WATER

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COMPRESSOR MOTOR

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EFFICIENCY

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CONDENSER

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CONDENSER FAN MOTOR

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MODULATION/ CONTROL TYPE

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ELECTRICAL

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MODEL NUMBER

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REMARKS

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FLOW GPM

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FLUID TYPE

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MAXIMUM W.P.D. FT. HEAD

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FOULING FACTOR

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NUMBER OF COMPRESSOR

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KW TOTAL

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RLA EACH

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MINIMUM FULL LOAD EER

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MINIMUM IPLV (EER)

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AMBIENT AIR TEMPERATURE °F

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MINIMUM AMBIENT TEMPERATURE °F

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QUANTITY

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FLA EACH

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VOLTS

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PHASE

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FLA

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MOP

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OPTIONS/ ACCESSORIES

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CH-1

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EG30

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VFC

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YVAA0413HYV

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AutoCAD SHX Text NOTE: 1. REFER TO SCHEDULES GENERAL NOTES. 2. MODEL NUMBERS ARE YORK UNLESS OTHERWISE NOTED. 3. FLUID TYPE: W = WATER, PGXX = PROPYLENE GLYCOL SOLUTION XX PERCENTAGE OF GLYCOL, EGXX = ETHYLENE GLYCOL SOLUTION XX PERCENTAGE OF GLYCOL. XX PERCENTAGE OF GLYCOL, EGXX = ETHYLENE GLYCOL SOLUTION XX PERCENTAGE OF GLYCOL. PERCENTAGE OF GLYCOL, EGXX = ETHYLENE GLYCOL SOLUTION XX PERCENTAGE OF GLYCOL. XX PERCENTAGE OF GLYCOL. PERCENTAGE OF GLYCOL. 4. EFFICIENCY RATINGS SHALL BE IN ACCORDANCE WITH ARI STANDARD 550/590-98 WITH ADDENDA THROUGH JULY 2002.

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GAS FIRED CONDENSING BOILER SCHEDULE

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UNIT IDENTIFICATION

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NUMBER OF CONTROL STAGES

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FUEL

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AGA INPUT MBH

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CONDENSING AGA OUTPUT MBH

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NON CONDENSING AGA OUTPUT MBH

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PRESSURE RATING PSIG

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DIMENSIONS

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WATER (30% EG)

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MODULATION/ CONTROL TYPE

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ELECTRICAL

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MODEL NUMBER

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REMARKS

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TYPE

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INLET PRESSURE AT GAS TRAIN INCH W.C.

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LENGTH

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WIDTH

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HEIGHT

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FLOW GPM

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AUTO

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AUTO

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AutoCAD SHX Text NOTE: 1. REFER TO SCHEDULES GENERAL NOTES. 2. MODEL NUMBERS ARE PATTERSON KELLEY UNLESS OTHERWISE NOTED. 3. BOILERS ARE EACH SIZED AT 2/3 OF THE ANTICIPATED BUILDING LOAD. 4. PROVIDE BOILER WITH CONDENSATE NEUTRALIZATION TANK ASSEMBLY.

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AutoCAD SHX Text g:\2016\2016-0105-00\CAD\2016-0105-M7-SH.dwg, M7.03, 6/2/2017 10:22:15 AM, Jason E. Flint, Peter Basso Associates Inc., M7.03, 6/2/2017 10:22:15 AM, Jason E. Flint, Peter Basso Associates Inc.M7.03, 6/2/2017 10:22:15 AM, Jason E. Flint, Peter Basso Associates Inc., 6/2/2017 10:22:15 AM, Jason E. Flint, Peter Basso Associates Inc.6/2/2017 10:22:15 AM, Jason E. Flint, Peter Basso Associates Inc., Jason E. Flint, Peter Basso Associates Inc.Jason E. Flint, Peter Basso Associates Inc., Peter Basso Associates Inc.

AutoCAD SHX Text c FRENCH ASSOCIATES, INC.

AutoCAD SHX Text 5/26/2017

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BID DOCUMENTS

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MECHANICAL SCHEDULES

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ZAV

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GRN

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RNR

BMogk Approved

26225 SHERWOOD AVENUE * WARREN, MICHIGAN 48091 * PHONE (248) 589-8220 * FAX (248) 589-3744

TO: ALL BIDDERS June 15, 2026

Proposal 26-AM-XXXX-DJC

ROCHESTER ADAMS HIGH SCHOOL NATATORIUM

CFCE 2000 HIGH EFFICIENCY BOILERS (1)

D.J. Conley Associates, Inc. ("Company") offers to furnish the Equipment described herein for the purchase price noted, exclusive of all taxes. Prices quoted are firm for 30 days from date of Proposal, but are subject to adjustment in accordance with the provisions as noted in the attached Terms and Conditions of Sale. This Proposal is subject to withdrawal at any time without notice and any contract resulting from this Proposal is subject acceptance by the Company at Troy, Michigan. No statements or understandings relating to the subject matter, other than those set forth herein, shall be binding on the Company. This includes any contract or additional Terms and Conditions that may be set forth in Buyer's purchase order submitted to Company in response to this Proposal. Buyer’s acceptance of this document in writing or by issuance of a purchase order indicates that buyer has read, understands and agrees to be bound by all of the terms of this document, including the Terms and Conditions of Sale incorporated herein. D. J. Conley Associates, Inc. Terms and Conditions of Sale are available on the Company website and can be accessed at www.djconley.com.

Item Qty. CFCE 2000 SCOPE OF SUPPLY

#1 1 Boiler Description:

Boiler Input Capacity: 2000 MBTU Model Dimension: 35.8in x 56in x 79.9in Unit Weight: 2166lbs Fuel: Natural Gas Emissions Level (NG): 20 ppm Safety Valve Setting: 60lb Voltage: 115 V Insurance: CSD-1 Compliant

#2 1 Connections:

Gas Connection: 1.5” NPT Stack Connection: 8” I.D. Collar Direct Vent Connection: 8” I.D. Collar Supply and Return Connection: 4 in. 150FL Air Vent Connection: 1.5 in. NPT Waterside Drain Connection: 1.5 in. NPT Flue Gas Condensate Drain Connection: 1 in. NPT

#3 1 Boiler Trim:

Air Vent Valve Kit: 0.75 in. Brass NPT (Shipped Loose) Condensate Treatment Package: Tank with Media, Trap By Others (8000 MBTU Capacity Each) Gas Regulator (Shipped Loose): RV81 w/vent

#4 1 Controls Package:

Premix Burner/Flame Safeguard: Integrated Ember Controls W/7” Touchscreen Level Control Package: Main Low Water Cutoff (LWCO):Warrick 3E-1 Manual Reset Protocol translator will not be provided when Bacnet MSTP or Modbus RTU is selected as a BMS language.

Main Power Distribution: Non-Fused Disconnect (115/1/60) (Ship Loose Kit)

#5 1 Gas Train Configuration:

Nema Rating: NEMA 1 Piping Material: Prepiped Carbon Steel Manual Valve #2: 1.25in Ball (Factory Piped) Safety Shutoff Valves: Honeywell Dual Solenoid without POC (Factory Piped) GPR Configuration: RV81 (Ship Loose Kit) Manual Valve #1: 1.5in Ball (Ship Loose Kit); Customer Connection: 1.5in Pressure Requirements:

Minimum Gas Pressure (@ Inlet of Manual Valve): 7 in. w.c.

Maximum Gas Pressure (@ Inlet of Manual Valve): 14 in. w.c.

Customer Supply Gas Pressure (@ Inlet of Manual Valve): 7 in. w.c.

#6 1 Submittal Package:

Dimensional Diagram Wiring Diagram Test Fire Report ASME Data Report Integrated Controls Wiring Schematic System Arrangement: Primary Secondary Flow with Control of Boiler Pumps -Enable and Speed Control

#7 1 Startup and Training by DJ Conley Associates, Inc http://www.djconley.com/

26225 SHERWOOD AVENUE * WARREN, MICHIGAN 48091 * PHONE (248) 589-8220 * FAX (248) 589-3744

TO: ALL BIDDERS June 15, 2026

Proposal 26-AM-XXXX-DJC

ROCHESTER ADAMS HIGH SCHOOL NATATORIUM

CFCE 2000 HIGH EFFICIENCY BOILERS (1)

D.J. Conley Associates, Inc. ("Company") offers to furnish the Equipment described herein for the purchase price noted, exclusive of all taxes. Prices quoted are firm for 30 days from date of Proposal, but are subject to adjustment in accordance with the provisions as noted in the attached Terms and Conditions of Sale. This Proposal is subject to withdrawal at any time without notice and any contract resulting from this Proposal is subject acceptance by the Company at Troy, Michigan. No statements or understandings relating to the subject matter, other than those set forth herein, shall be binding on the Company. This includes any contract or additional Terms and Conditions that may be set forth in Buyer's purchase order submitted to Company in response to this Proposal. Buyer’s acceptance of this document in writing or by issuance of a purchase order indicates that buyer has read, understands and agrees to be bound by all of the terms of this document, including the Terms and Conditions of Sale incorporated herein. D. J. Conley Associates, Inc. Terms and Conditions of Sale are available on the Company website and can be accessed at www.djconley.com.

Item Qty. Pricing PTC (USD)

#1 1 CFC-E2-700-2000-125HW (120/1/60) Integrated Ember Controls

Freight (EXW - Ex Works Factory) Cost (USD): INCLUDED

Total Price to Customer (USD): TO FOLLOW

EXCEPTIONS AND CLARIFICATIONS:

• Installation by others

• Exhaust venting can be quoted separately

• Freight included, unloading by others

• Sales Tax not included in pricing

• Submittal lead time: included with this quote

• Delivery lead time: 2-3 weeks from order placement

Payment Terms (with approved credit): 30 days net 100% invoiced upon notification of shipment

No Sales, Use or Excise Taxes are included in above quoted pricing Please return one signed copy of the proposal or your purchase order referenced to this proposal number and date to:

D.J. Conley Associates, Inc.

Date Accepted: _____________20___ By__________________________________ ____________________________________ (Purchaser) (Signature)

Proposal furnished by D.J. CONLEY ASSOCIATES, INC., 26225 SHERWOOD AVENUE, WARREN, MI 48091

Aaron Miller amiller@djconley.com

Office: 248-589-8220 Cell: 248-379-3257 http://www.djconley.com/

CB-8659-2000

CFC-E 2000

ClearFire®-CE Submittal Sheet

Condensing Boiler

2000 MBH

JOB NAME:_______________________________________________________________________

REVIEWER NOTES:

ClearFire®-CE Submittal

CB REPRESENTATIVE __________________________________________________________________________

JOB NAME ___________________________________________________________________________________

EQUIPMENT TAGS ____________________________________________________________________________

LOCATION ____________________________________________________________________________________

ALTITUDE ____________________________________________________________________________________

CONTRACTOR ________________________________________________________________________________

ENGINEER ___________________________________________________________________________________

MODEL NUMBER _____________________ QTY___________

FUEL _______NATURAL GAS _______PROPANE

BOILER ROOM GAS SUPPLY PRESSURE ___________________

VOLTAGE _________

DESIGN SUPPLY AND RETURN WATER TEMPERATURE __________________________________________

FLOW RATE (GPM)_____________WATERSIDE PRESSURE DROP (FT HEAD @ FLOW RATE)_____________

_____WATER _____GLYCOL (if glycol, type and percentage):__________________________________________

BOILER OUTPUT W/GLYCOL DERATE (or N/A)_______________________

Description Units 2000* Input Max. Btu/hr 2,000,000 Natural Gas ft3/hr 2000

Propane ft3/hr 800

Output at 120/80 F [49/27 C] 100% Firing Btu/hr 1,880,000 Output at 180/140 F [82/60 C] 100% Firing Btu/hr 1,760,000 MAWP psi 125 Operating Temp., Max. °F 210

Dry Weight pounds 2041 Shipping Weight pounds 2166 Operating Weight pounds 2858 Water Volume gallons 98 Fan Motor Size Watts 1,700 Operating Voltage, Fan Volts/ph/Hz 115/1/60 Control Circuit Volts/ph/Hz 115/1/60 Current Draw, Fan Amperes 13.5 Current Draw Cont. Cct. Amperes 2 Full Load Amps Amperes 16 Max Over Current Protection Amperes 20 Condensate Quantity Firing Nat. Gas & operating @ 120/80 F. gal/hr 13.5 Flue Gas Mass Flow @ 100% Firing lb/hr 2,226 Flue Gas Temp. Oper. 180/140 F °F 180 Flue Gas Temp. Oper. 120/80 F °F 130 Effective fireside heating surface ft2 488.09 *12% derate with 7ppm NOx option

PROJECT INFORMATION

BOILER RATINGS

• Duplex Stainless Steel TurboFer® firetube heat exchanger.

- True counterflow design

- Thermal shock proof design

- Superior effective heating surface area for excellent operational efficiency

- Dual temperature returns provide 6% efficiency gain

- Single pass design

• High water volume and low waterside pressure drop

- Ideal for Primary Variable Flow pumping

- Reduced cycling with no buffer tank required

- Capable of low flow situations with no need for a flow switch

• Low emission premix burner featuring:

- Self-regulating linkageless control

- ECM variable speed combustion air blower modulation

- Whisper quiet operation (<70dBA at high fire)

- 10:1 turndown [natural gas]

- <20 ppm NOx standard [natural gas]

- <7 ppm NOx optional

- SCAQMD Rule 1146.2 certified

• UL certified for natural gas or propane

• Combustion air intake via room air or direct vent connection on boiler

• Spark ignition with UV scanner for flame supervision

• ASME CSD-1 compliant

• ENERGY STAR certified

• Factory tested prior to shipment

• Standard short circuit current rating (SCCR): 10kA

• Trim and Controls -Manual reset high limit temperature cut-off with adjustable set point -Low water cutoff, probe type, manual reset with test switch -Thermistor sensors for supply and return water temperature readings -Combination temperature/pressure gauge -ASME Safety relief valve (ship loose) -Combustion air proving switch -Blocked flue/condensate safety switch

• Gas Train in Accordance with ASME CSD-1 and Includes:

-Low and high gas pressure switches -Single body gas valve, dual solenoid safety shutoff -Leak test plugs -Manual shutoff valve

• Ember integrated boiler safety and system control

• Color touch-screen display/interface

• Multiple loop PID set point control - central heat, domestic hot water and lead/lag demand priority

• Lead Lag control for up to eight boilers

• Boiler pump, DHW pump, system pump, iso valve, damper enable/disable

• Modulating pump speed control tracking firing rate or boiler delta T

• Outdoor temperature reset

• Post shutdown pump or valve delay

• Remote enable and set point capability

• Modbus RTU or BACnet MSTP communications (RS485)

• Multiple protocol gateway solutions available for other BMS integration requirements

• On-screen fault annunciation

• Remote alarm & boiler status contacts standard

• Non-volatile alarm history (last 10 lockouts)

• Cloud enabled for remote monitoring capabilities (with optional CB ProtoAir)

STANDARD FEATURES

STANDARD EQUIPMENT

INTELLIGENT, INTEGRATED CONTROLS

CFC-E Boiler Options Selection Guide

All options ship loose for field installation

Boiler Options

Reusable air filter

Adjustable feet

Condensate neutralization

Combination trap / tank (8000 MBH)

Tank only (8000 MBH)

Auto air vent

Stack Thermometer

Boiler drain valve

Boiler Electrical Disconnect (NEMA 1 - non fused)

Automatic isolation valve (24VAC standard)

Auxiliary low water cut off

Seismic anchor provisions

Gas train options

Gas pressure regulator - stepdown low pressure: up to 21 in. WC medium pressure: 22 - 56 in. WC high pressure: 2 - 15 psig

Gas pressure relief valve - required above 1 psig (UL); 1/2 psig (cUL/CSA)

Control Options

Supply header sensor for Lead Lag operation (NEMA 4X)

Redundant supply header sensor for Redundant Lead (NEMA 4X)

System pump control Module (in NEMA 1 enclosure with fuse and power supply) Includes:

Temperature control (two temperature transmitters)

Pressure control (D/P transmitter)

Alarm lights and horn package

Alarm horn only package

Outdoor temperature sensor (with weather cover)

Stack temperature limit sensor

Flow switch

Protocol translator (in NEMA1 Enclosure with fuse and power supply)

Modbus RTU / BACnet MSTP communication standard

BACnet IP

Modbus TCP

Metasys N2

LonWorks

Protocol translator ship loose for mounting in boiler control panel (includes 24VDC power supply) Modbus RTU / BACnet MSTP communication standard

BACnet IP

Modbus TCP

Metasys N2

LonWorks

BOILER OPTIONS

AaronMiller Text Box

BY OTHERS

AaronMiller Rectangle

AaronMiller Text Box x

Percent Efficiency

AHRI Certified Efficiency

CFC-E Flow Rates*

Waterside Pressure Drop CFC-E 2000

% Firing Rate

Return Water Temperature °F ( °C ) 68 80 100 120 130 140 160

(20) (27) (38) (49) (55) (60) (72) 20% 98.0 97.1 94.5 91.4 90.0 88.9 88.0 50% 96.6 95.5 93.0 90.5 89.3 88.5 87.7 75% 95.5 94.1 91.7 89.6 88.8 88.2 87.5

100% 94.3 92.7 90.5 88.8 88.3 87.8 87.2 Conditions: Natural Gas; ΔT = 20°F

Combustion Efficiency (%) Thermal Efficiency (%)

94.3 95.5

System Temperature Drop °F *Recommended flow rates relative to temperature drop so as not to exceed boiler output.

Based on 94% nominal effficiency

NOTE: Flow rates based on 100% water only. Not applicable to glycol solutions. Contact local C-B representative for assistance with glycol sys-tems.

NOTE: The flow rates shown are recommended design flow rates. The CFC-E is capable of handling delta T's up to 120 deg F without damage to the heat exchanger.

10 20 30 40 50 60

Flow Rate GPM

377 188 126 94 75 63

OPERATING EFFICIENCIES

FLOW RATES

PRESSURE DROP

0 100 200 300 400 500 600

P re ss u re p si

Flow Rate gpm

DIMENSIONS (inches) CFC-E 2000 A Overall Height 79.8 B Overall Width 35.7 C Overall Depth 56 D Width Less Casing 33.0 E Gas Connection to Floor 74.1 F Side of Casing to Gas Connection 5.6 G Side of Casing to Air Inlet 12.3 H Top of Casing to Air Inlet 8.1 J Floor to Condensate Drain 6.3 K Floor to Bottom of Casing 11.4 L Side of Base to Flue Outlet (Centered) 8.5 M Side of Base to Flue Outlet (Offset) 7.5 N Rear of Base to Flue Outlet 7.5 P Casing Depth 42.6 Q Casing Height 68.4 R Floor to Lower Return Connection 16.9 S Floor to Upper Return Connection 31.8 T Floor to Supply Connection 59.5 U Floor to Air vent Connection 66.3 V Air Vent Line Projection From Rear of Casing 3.5

FORK POCKETS

LL Pocket Height 3.9 MM Pocket Width 11.8 NN Overall Pocket Width 27.6

CENTER OF GRAVITY

PP Casing - Side Panel 18.0 QQ Casing - Front Panel 24.6 RR Bottom of Base 34.0

SEISMIC BRACES (optional) SS Bracket-to-Bracket Width (hole center) 35.2 TT Bracket-to-Bracket Length (hole center) 54

DIMENSIONS AND CONNECTION SIZES

L M

N

BB

PP

JJ

SS

TT

SIDE CLEARANCE

V P

FRONT CLEARANCE

TOP CLEARANCE

REAR

CLEARANCE

GG

HH

Y

X

W

KK

Q

H G

C

R

S

T

F

DD Z

MM

LLJ

K

NN

D B

A E U

OPTIONAL ADJUSTABLE FEET ALLOW FOR

1.56” TO 3.88” ADDITIONAL HEIGHT

FF

2 EACH SIDE

QQ

RR

CONNECTIONS

W Water Low Temp. Return, CL150 RF Flange 4"

X Water High Temp. Return, CL150 RF Flange 4"

Y Water Supply, CL150 RF Flange 4"

Z Air Vent, NPT 1-1/2" AA Vessel Drain, NPT 1-1/2"

BB Flue Gas Outlet

Standard (Offset) 8" Option 10"

CC Combustion Air 8"

DD Gas, NPT 1-1/2" EE Condensate Drain, NPT 1"

FF Electrical Conduit, Left or Right 0.87”

GG Safety Relief Valve Vessel Connection, NPT 1-1/4" HH Safety Relief Valve

30 psig Inlet x Outlet, NPT 1-1/4" x 1-1/2"

50 - 60 psig Inlet x Outlet, NPT 1" x 1-1/4" 75 - 125 psig Inlet x Outlet, NPT 3/4" x 1"

JJ Flue Coupling, NPT 1/2"

KK Water Outlet Coupling, NPT 3/4"

CLEARANCES

Notes:

Boiler rear must be accessible for servicing.

Side clearance to wall or between boilers.

Side clearance typical each side.

Top 14"

Side 3" Rear 20"

Front 36"

The boiler should be lifted by the base using a suitable fork lift. Note: The boiler should not be moved by pushing, prying, or pulling on any part of the casing. If the floor is not level, piers or a raised pad slightly larger in length and width than the boiler base dimensions will make boiler installation and leveling easier.The boiler must be installed so that all compo-nents remain accessible for inspection, cleaning, or mainte-nance. Field-installed piping and electrical connections must be arranged so as to avoid interfering with removal of the cas-ing panels or with the burner door.

To avoid damage to casing, removal of front and side casing panels is recommended during installation.

Care should be taken to secure load at the top to prevent tipping.

WARNING! Do not install the boiler on carpeting.

NOTE: For crane lifting refer to CFC-E Installation manual 750-487 for instructions.

STACK SIZING USING OUTSIDE AIR FOR COMBUSTION (DIRECT VENT)

Each additional 90° elbow equals 5 equivalent feet of ductwork. Flue terminations may add 5-10 feet to the equivalent length and should also be included in the equivalent length calculation.

Draft tolerance at boiler flue connection during operation is +/-0.25” W.C.

*Maximum vent length assumes horizontal run and sidewall terminations. Larger diameter venting, vertical flue runs, and vertical flue termination may allow for longer vent lengths than indicated here, provided the engineered draft calculations are within the allowable operational tolerance of +/-0.25” W.C.

Boiler Combustion Air Duct

(Inches Diameter) Combustion Air SCFM Required

Flue Connection/Duct (Inches Diameter)

Max. Length* (Equivalent Feet)

CFC-E 2000 8 500

8 standard 100

10 optional 120

RIGGING AND TRANSPORTATION

STACK DESIGN

WD is typical and may not reflect actual customer boiler. Refer to job specific WD for actual wiring connections.

WIRING DIAGRAM

(REMOVE JUMPER)

45 (120VAC OUTPUT)

In addition to our Standard Warranty, Cleaver Brooks offers the following non-prorated Extended Warranty on the ClearFire CFC-E boilers:

1. The pressure vessel is guaranteed against thermal shock for the lifetime of the boiler when utilized in a closed loop hydronic heating system with a temperature differential of 120°F or less. The boiler pressure vessel is guaranteed accordingly without a minimum flow rate or return water temperature requirement. The boiler shall not require the use of flow switches or other devices to ensure minimum flow.

2. The pressure vessel, tubes, and tube sheets (heat exchanger) are guaranteed against flue gas corrosion and materials/workmanship for a period of fifteen (15) years.

3. The condensate collection box shall be guaranteed against corrosion for twenty (20) years.

4. The burner cylinder shall be warranted for a period of five (5) years.

All parts not covered by the above warranties are valid for twenty-four (24) months from the date of initial operation of the Equipment, but in no event shall the Warranty extend more than thirty

(30) months from the date of shipment of the Equipment by Cleaver-Brooks. This includes all electrical and burner components.

The pressure vessel thermal shock warranty covers leaks in the pressure vessel including the furnaces, tubes, tube sheets, and shell (not including failed gaskets), which, from our inspection, are attributed to unequal or rapid expansion, typically referred to as “thermal shock,” or stress cracking. This warranty does not cover damage or failures that are attributed, by our inspection, to corrosion, operation at low water level, accumulation of scale, sludge or dirt in the boiler, or other improper service, operation, or neglect.

Cleaver Brooks' liability hereunder is limited to repairing or furnishing a replacement pressure vessel or component parts thereof, as deemed necessary by our inspection. Cleaver Brooks is not responsible for shipping, handling, installation and other costs, including all costs associated with the removal and disposition of the old pressure vessel or component parts. In no event shall Cleaver Brooks be responsible for any incidental, consequential or other damages, including, without limitation, any damages resulting from loss of use of the boiler.

Refer to official warranty documents for specific warranty information.

WARRANTY

ClearFire®-CE High-Mass Condensing

Firetube Boiler 500 to 6,000 MBH

A Cleaver-Brooks Sustainable Solution

Get Future-Ready with TurboFer®

Energy Savings and Environmental Benefits

The ClearFire®-CE (CFC-E) condensing boiler combines the patented TurboFer® heat exchanger technologies with innovative Ember controls and burner design to offer the most efficient condensing boiler on the market.

With its proprietary combination of technologies, the CFC-E provides safe, efficient, reliable, and sustainable operation for a variety of applications.

The ClearFire-CE is future-ready and built to last with a robust design.

It also helps you achieve your sustainable energy goals.

The ClearFire-CE offers:

» Lowest total cost of ownership – due to its large water volume, the ClearFire-CE is designed for use in variable-flow primary systems, offering the lowest total cost of ownership spanning installation through operation

» Energy-efficient operation – superior heat transfer and low waterside pressure drop reduces pumping energy, gas and electrical consumption

» Environmentally conscious burner design – offers 20 ppm NOx standard and 7 ppm NOx optional

» Future-proof fuel flexibility – features a burner and controls that can support renewable natural gas or a hydrogen blend without burner changes

Our CFC-E boiler meets the strict performance and sustainability criteria required to earn the Cleaver-Brooks Sustainability Seal.

Find out more at cleaverbrooks.com/sustainability.

» Increased turndown to 10:1

» New Ember controls

» AluFer® to TurboFer technology

» Enhanced casing design

CFC-E Updates:

Based on the first generation of ClearFire® boilers, which have operated reliably in a variety of applications for 20+ years, the latest model boasts a patented TurboFer® heat exchanger for even greater efficiencies in a more compact footprint.

The newest ClearFire-CE can operate on renewable natural gas or a hydrogen-and-natural-gas blend of up to 20% hydrogen.

The vertical design supports more distinct temperature stratification of the heating water. Along with the integrated dual-return connection, this leads to more effective heat transfer.

UP TO

99%

EFFICIENT

Efficiency-Gaining Features:

» TurboFer heat exchanger with optimized heat transfer leads to superior operating efficiencies, up to 99%

» 10:1 fully modulating turndown

» Duplex stainless steel construction provides corrosion resistance to flue gas condensate and chloride stress cracking

» Large-water-volume pressure vessel with low waterside pressure drop reduces pumping energy

» Integrated lead-lag controls intelligently sequence and modulate up to eight boilers

4 5

Advanced Burner & Controls Engineering Innovation Boosts Efficiency

Technology Enhancements The firetube technology provides unmatched heat transfer and condensing characteristics and delivers excellent waterside corrosion resistance while keeping water treatment requirements simplified.

6%+ Increase in Efficiency The ClearFire®-CE features two separate returns: the high-temperature return at the upper inlet connection and the low-temperature return at the lower inlet connection. This strengthens counterflow heat exchange characteristics, resulting in increased condensing performance.

The dual-return design of the ClearFire-CE helps it achieve optimal condensing performance, even in applications with non-condensing temperature heating loops, resulting in 6%+ increases in system efficiency.

Improved Turndown All capacities of the ClearFire®-CE now feature 10:1 fully modulating turndown. This turndown is achieved with the boiler operating efficiently across the entire firing range by keeping excess air levels consistent. Additionally, minimal moving parts simplifies maintenance and provides repeatable combustion performance.

The increased turndown helps the boilers match the load demand more closely, leading to increased system efficiencies as well as reduced boiler cycling and wear-and-tear on the burner components.

Industry-Leading Non-Prorated Warranties » Lifetime thermal shock

» 15-year fireside corrosion

» 5-year burner canister

» 20-year condensate collection pan

» 2-year parts warranty4

Heat Transfer Done Right The TurboFer design starts with a duplex stainless steel tube die-fitted with an inner (fireside) aluminum-alloy finned heating surface. The top of the tube is then pressed together producing a smaller cross-sectional area that increases flue gas velocity and turbulence. The flue gases speed up, creating a swirling effect, which leads to superior heat transfer in a compact footprint.

The TurboFer® heat exchanger is a newly engineered, patented core component of the boiler. The unique design of the heat exchanger and its innovative technology generates turbulence on the fireside, increasing heat transfer and boosting efficiency.

Combined with the other innovations, this reduces your initial investment and ongoing operating costs.

Integrated Ember Controls The CFC-E features an integrated Ember control platform that has the built-in ability to control lead-lag, outside air temperature reset, automatic isolation valves, primary pumps, and BAS integration, enabling seamless design and functionality.

The controls have redundant host functionality.

BACnet is included as standard, and true ∆T pump speed control means there are many built-in features to support different system requirements.

Inherent O2 Trim The CFC-E uses a variable-speed ECM combustion air fan, reducing electrical consumption.

This design allows for true linear modulation and standard ultra-low emissions with premix combustion.

ClearFire® boilers utilize a gas valve/venturi that automatically adjusts for changes in combustion air density. This maintains consistent excess air levels from low-to-high fire without additional controls that require tuning and maintenance, meaning fewer service visits to maintain peak efficiency.

500 750 1000 1500 2000 2500 3000 3500 4000 5000 6000

Overall Height (“A” - inch) 78.0 78.0 78.0 79.8 79.8 95.2 95.2 91.3 91.3 93.6 93.6

Overall Width (“B” - inch) 32.6 32.6 32.6 35.7 35.7 35.7 35.7 48.4 48.4 58.7 58.7

Overall Depth (“C” - inch) 49.4 49.4 49.4 56.0 56.0 56.0 56.0 68.4 68.4 80.6 80.6

Dry Weight (lb) 1,298 1,298 1,396 1,861 2,041 2,420 2,475 3,575 3,575 4,900 5,275

Shipping Weight (lb) 1,413 1,413 1,511 1,986 2,166 2,541 2,596 3,725 3,725 5,075 5,450

Operating Weight (lb) 2,065 2,065 2,113 2,778 2,858 3,470 3,492 5,227 5,304 7,502 7,659

Water Volume (gallon) 92 92 86 110 98 126 122 198 198 312 285

ClearFire®-CE Dimensions and Ratings

Broad Range of Applications

Office Buildings Healthcare Facilities

Multi-Family HousingCampus SystemsManufacturing Processes

CB

A

The ClearFire®-CE is capable of variable-flow pumping, allowing for maximum operating efficiency in a variety of system applications.

Condense for Maximum Efficiency

Meeting Your Needs

Boiler Condensate to Drain Condensate

Neutralization

H2O

CO2

NOX

O2

Sensible Heat

Hot Water

Heat

Latent Heat

Condensing Boiler

Fuel + Oxygen

15%

INCREASED

ENERGY SAVINGS

Condensation, the crucial element to improving efficiency, is maximized within the key design features of the TurboFer® heat exchanger. The flue gases from the combustion process contain steam, which stores large quantities of latent energy. When the steam cools to below 130° F, it becomes liquid, condensing and releasing the latent energy and transferring the heat to the water through the TurboFer heat exchanger. Energy otherwise lost through the boiler flue is now retained, increasing efficiencies and achieving additional energy savings of approximately 15%.

Skid Systems Cleaver-Brooks pre-engineered and pre-packaged, skid-mounted hydronic boiler solutions offer a simple solution to get up and running in less time, with less effort than traditional field-installed systems. Single-point piping and electrical connections, and robust skid design make installation simple and easy.

HxO Heat Exchanger The HxO is designed to provide instantaneous domestic hot water supply to your building without the need for additional fuel-fired or electric heating equipment. By utilizing your new or existing hot water heating loop, the HxO will provide on-demand water for your system.

Outdoor Boiler Cleaver-Brooks offers a UL-listed and AHRI-certified outdoor option for the ClearFire®-CE boiler that allows the boilers to be installed outdoors in moderate climates. The outdoor hood kit allows for simple installation and mounts directly onto all current ClearFire-CE boilers.

Printed in the USA

CB-8665

08/2025

Product designs, specifications and/or data in this document are provided for informational purposes only and are not warranties of any kind.

Product designs and/or specifications may be changed at any time without notice. The only warranties that apply to sales of products and services are Cleaver-Brooks standard written warranties, which will be furnished upon request.

Cleaver-Brooks and other trademarks and service marks used herein are the property of The Cleaver-Brooks Company, Inc.

© 2025 The Cleaver-Brooks Company, Inc. All rights reserved.

The Power of Total Integration is how Cleaver-Brooks delivers the world’s broadest range of integrated, sustainable thermal solutions. In addition to our products, this includes Cleaver-Brooks global authorized sales representatives and independent service contractors, training resources, and trusted expertise that add significant value to your Cleaver-Brooks investment.

Natatorium Boiler Replacement - Rochester Adams High School

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END ADDENDUM

27.01 Addendum 1 Answers to RFCs.docx (1).pdf