Embassy of the United States of America 490 Sussex Drive, Ottawa, Ontario, K1N 1G8

July 31, 2026

Subject: Request for Quotes 19CA5226Q0020 Residential HVAC Replacement

Dear Prospective Offeror:

Enclosed is a Request for Quotes (RFQ) for replacement of multiple furnace and air conditioning units at a residential property. If you would like to submit a quotation, follow the instructions in Section J of the solicitation, complete the required portions of the attached document, and submit it to the address shown on the Standard Form that follows this letter.

The U.S. Government intends to award a contract/purchase order to the responsible company submitting an acceptable offer at the lowest price. We intend to award a contract/purchase order based on initial proposals, without holding discussions, although we may hold discussions with companies in the competitive range if there is a need to do so.

The Embassy intends to conduct a mandatory pre-quotation conference at the site. The pre-proposal conference will be held on August 11, 2026 at 10:00am EDT at 1500 Lisgar Road, Ottawa. Prospective offerors interested in attending this meeting should send the names and work titles of participants to ContractsOttawa@state.gov no later than August 7, 2026. No more than 2 company representatives may attend.

Questions may be submitted by email to ContractsOttawa@state.gov no later than August 14, 2026. Answers will be published on the U.S. Embassy website by August 17, 2026.

Quotations are due by August 21, 2026 at 4:00pm EDT. No quotations will be accepted after this time. Proposals must be in English and incomplete proposals will not be accepted.

Only companies that are present at the pre-proposal conference will be authorized to submit quotations against this solicitation.

The requirement mandates that all vendors possess the necessary licenses and permits to conduct business in Canada. It is essential to ensure compliance with all Canadian regulations and legalities to operate successfully in the country.

If hiring subcontractors, offerors must also show that the subcontractors have obtained authorization to operate in Canada. Please pay attention to a crucial requirement outlined in the

DOSAR 652.242-73 .

mailto:ContractsOttawa@state.gov

Your quotation must be submitted electronically in Portable Document Format (PDF) to ContractsOttawa@state.gov . Subject of your email must include the following reference:

“Quotation for RFQ#19CA5226Q0020 - The file size must not exceed 30MB. If the file size should exceed the 30MB, the submission must be made in separate files and attached to separate emails with less than 30MB each

In order for a quotation to be considered, you must also complete and submit the following:

1. SF-1442

2. Section A, Pricing

3. Section L Representations and Certifications

4. Additional information as required in Section J

5. Proof of SAM Registration

Offerors shall be registered in the SAM (System for Award Management) database at https://www.sam.gov prior to submittal of their offer/proposal as prescribed under FAR 4.1102.

Failure to be registered at time of proposal submission may deem the offeror’s proposal to be considered non-responsible and no further consideration will be given. Therefore, offerors are highly encouraged to register immediately if they are interested in submitting a response to this requirement.

Sincerely, William Styron Contracting Officer https://www.sam.gov/

TABLE OF CONTENTS

SF-1442 COVER SHEET

A. PRICING

B. STATEMENT OF WORK

C. PACKAGING AND MARKING

D. INSPECTION AND ACCEPTANCE

E. DELIVERIES AND PERFORMANCE

F. CONTRACT ADMINISTRATION DATA

G. SPECIAL TERMS AND CONDITIONS

H. CLAUSES

I. (RESERVED)

J. INSTRUCTIONS ON HOW TO SUBMIT A QUOTATION

K. EVALUATION CRITERIA

L. REPRESENTATIONS, CERTIFICATIONS AND OTHER STATEMENTS

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SECTION A - PRICING

A. PRICE

The Contractor shall complete all work, including furnishing all labor, material, equipment, and services required under this purchase order for the following firm fixed price and within the time specified. This price shall include all labor, materials, all insurances, overhead and profit.

Line Item Unit ID Location /

Description Price Tax Total Price

1 CU-4/F-4

Entry Living Room $ $

2 CU-5/F-5

Sunroom Kitchen $ $

3 CU-6/F-6

Level 2 North $ $

4 CU-7/F-7

Level 3 North $ $

5 CU-8/F-8

Level 2 South $ $

6 CU-9/F-9

Level 3 South $ $

TOTAL $

A.1 VALUE ADDED TAX

VALUE ADDED TAX (VAT). The Contractor shall include VAT as a separate charge on the Invoice and as a separate line item in Section B.

SECTION B - STATEMENT OF WORK

The character and scope of the work are set forth in the contract. The Contractor shall furnish and install all materials required by this contract.

In case of differences between small and large-scale drawings, the latter will govern. Where a portion of the work is drawn in detail and the remainder of the work is indicated in outline, the parts drawn in detail shall apply also to all other portions of the work.

1.0 Background and Justification

The United States Embassy Ottawa (the Owner) is seeking proposals from well-qualified heating, ventilation, and air-conditioning Contractors (the Contractor) to remove (7) existing air-cooled condensing units, evaporators, and (7) natural-gas fired furnaces. Work will be completed at a residence located at 1500 Lisgar Road, Ottawa, Ontario (the Residence).

Construction services include carefully removing existing that is not scheduled for reuse. New work shall include but are not limited to providing / installing new HVAC equipment, sections of ducting, controls, electrical wiring, conduit, breakers, piping, insulation, vibration isolation, steel dunnage, and other misc. appurtenances and required materials. This Statement of Work (SOW) defines the services to be performed by the Contractor.

Contractor is solely responsible for coordinating all work activities with the Owner. Contractor must provide a detailed pre-mobilization plan, proof of insurance, applicable licenses, and bonding documents to the Owner for review and approval prior to commencing any work on site.

A mandatory pre-bid walk-thru will be coordinated with bidders by the Contracting Officer’s Representative (COR). Walk-thru agenda, dates, etc. will be provided in separate documentation by the CO/COR.

2.0 Regulatory and Code Basis

The following codes, standards, and regulations govern this work. In the event of conflict, the more stringent requirement shall apply. The COR will resolve any ambiguities:

• Environment and Climate Change Canada — Ozone-depleting Substances and Halocarbon Alternatives Regulations, SOR/2016-99 (R-22 phase-out)

• Ontario Regulation 455/10 — Refrigerants (O. Reg. 455/10 under the Environmental Protection Act)

• Technical Standards and Safety Authority (TSSA) — Fuel Oil Code Adoption Document and Ontario Regulation 212/01 (Gas Distribution)

• Ontario Electrical Safety Code (OESC), 26th Edition — governs electrical workmanship standards (no ESA permit required for this scope).

• National Building Code of Canada (NBCC) 2020 and Ontario Building Code (OBC) 2024

• ASHRAE Standard 15 — Safety Standard for Refrigeration Systems

• ASHRAE Standard 34 — Designation and Safety Classification of Refrigerants

• Natural Resources Canada — Energy Efficiency Regulations for refrigerating appliances

• Technical Standards and Safety Authority (TSSA) — Gas distribution authorization required for natural gas appliance replacement (no City of Ottawa building permit required for this scope).

• 2021 International Code Council body of codes (ICC) as referenced by OBO standards

• EM 385-1-1 — U.S. Army Corps of Engineers Safety and Health Requirements Manual

• OBO / DOS Technical Standards as applicable

3.0 Existing Equipment Schedule

The following table summarizes all eight (8) condensing units and their paired furnaces subject to this scope of work:

CU CU Model Tons Year Refrig Furnace Year Area

CU-1 PA16NA060-C 5 2020 R410A Weather Maker

58SXC100-C-101LG

1993 Library / Dining Room

CU-2 PA16NA048 3 2019 R410A Weather Maker

58SXC060-C-101GG

1993 Kitchen

CU-4 38CK036310 3 1993 R-22 PG95XAT48080BAA 2014 Entry and Living Room

CU-5 PA10JA048000AAA 4 1998 R-22 TX Series

TM9X120D20MP11B

2005 Sunroom / Kitchen

CU-6 RAKA-030JAZ 2.5 2000 R-22 RGTA-12ERAJB 1997 Level 2 North

CU-7 RAKA-037JAZ 3 2000 R-22 RGTA-12ERAJB 1997 Level 3 North

CU-8 RAKA-037JAZ 3 2000 R-22 RGTA-12ERAJB 2000 Level 2 South

CU-9 RAKA-042JAZ 3.5 1999 R-22 RGTA-12ERAJB 2000 Level 3 South

CU-10 38TH030310 2.5 R-22 <Verify in Field> <TBC> Carriage House

4.0 General Requirements

4.1 Summary of Work

The Contractor shall furnish all labor, materials, equipment, tools, supervision, permits, and incidentals necessary to remove and dispose of the existing R-22 condensing units (CU-4, CU-5, CU-6, CU-7, CU-8, CU-9, and CU-10) and their paired furnaces (F-4, F-5, F-6, F-7, F-8, F-9, and F-10), and to supply and install new high-efficiency R-410A split-system HVAC equipment in their place, complete and fully operational.

Contractor shall design, fabricate, and install new, steel, dunnage / support for units CU-4, CU-5, CU-6, CU-7, CU-8, and CU-9 to replace existing supports. Existing refrigeration lines and electrical connections shall be partially removed to facilitate the new support. Contractor shall provide new refrigeration and electrical connections to create a durable, serviceable, installation.

Design must comply with manufacturer’s recommended clearances between units.

4.2 New Equipment Standards

• All replacement condensing units: R-454B or R-32 refrigerant (or other OBO/manufacturer-approved low-GWP alternative), minimum 16 SEER, 208V/1PH/60Hz, ULC/CSA certified. R-410A equipment is not acceptable; R-410A is being phased down under the same regulatory framework driving this replacement and shall not be specified for new installations.

• All replacement furnaces: natural gas, minimum 96% AFUE, CSA-certified, sealed combustion where applicable.

• Acceptable equipment brands: Carrier, Trane, Lennox, Payne, York, or Rheem. Submit catalog cuts to COR for approval prior to equipment procurement.

• Equipment must be serviceable locally in Ottawa (parts available within 24 hours or on-site).

• All equipment to be matched in capacity (BTU/tons) to existing equipment as a minimum;

upsizing is subject to COR approval.

4.3 Work Hours and Period of Performance

• Work hours: Monday to Friday, 0830–1630, excluding statutory holidays, unless otherwise authorized by the COR in writing.

• All work to be scheduled within five (5) calendar days of Notice to Proceed (NTP).

• Period of performance: 45 consecutive calendar days from NTP. CU-6/7/8/9 units are recommended to be replaced as a single mobilization to maximize efficiency. All CUs are located at ground level.

• Contractor shall provide a detailed schedule to the COR within 3 calendar days of NTP.

4.4 Coordination and Access

• The Residence is a functioning diplomatic residential property. The Contractor shall coordinate all work activities, access, and utility outages with the COR and Residence Supervisor (Paul Gratton) a minimum of 48 hours in advance.

• Security escort is required for all contractor personnel on the property. Coordinate with Security Escort Supervisor for all access. Personnel badges will be issued by the Post.

• Contractor shall submit a personnel roster (names, trade certifications) to the COR for approval prior to mobilization.

• Utility outages (gas, electrical) to be coordinated with the COR minimum 2 business days in advance. Duration of outages to be minimized.

4.5 Refrigerant Recovery and Disposal

• All R-22 refrigerant must be recovered by technicians certified under the Canadian

Environmental Protection Act (CEPA). Recovery certificates must be provided to the COR.

• Recovered R-22 must be handled, transported, and disposed of by a licensed refrigerant reclaimer in accordance with SOR/2016-99 and Ontario Regulation 455/10. Disposal manifests to be provided to COR.

• No R-22 venting to atmosphere is permitted under any circumstances.

• Owner retains first-right-of refusal for reclaimed R-22 refrigerant.

4.6 Protection of Property

• The Contractor is responsible for protecting all U.S. Government property including furniture, furnishings, carpets, flooring, interior and exterior finishes, and landscaping from damage throughout the project.

• Prior to work commencement, Contractor and COR/Post Representatives shall conduct a pre-work walkthrough to document existing conditions. Contractor shall provide written record to COR before work begins.

• All damage resulting from Contractor activities shall be repaired to original condition at Contractor's expense.

4.7 Permits and Authorizations

• No City of Ottawa building permit is required for this scope of work (in-kind equipment replacement on U.S. Government diplomatic property).

• No ESA electrical permit or inspection is required for this scope.

• TSSA gas work authorization is required for natural gas furnace replacements. The

Contractor shall obtain the required TSSA authorization and provide a copy to the COR prior to final payment.

4.8 Labor Requirements

• All trade work to be performed by journeyman-level or higher licensed tradespeople.

Apprentices may assist under direct journeyman supervision.

• Minimum 2 years' experience with commercial/residential HVAC split systems required for all HVAC technicians.

• Electrical work: qualified electrician compliant with OESC required. Gas work: TSSA-licensed gas technician required.

• All specialty trade worker résumés and licenses to be submitted to COR for review prior to mobilization.

4.9 Warranty

• Equipment warranty: minimum 5 years on compressor, 10 years on heat exchanger, 2 years on parts (or manufacturer standard, whichever is greater).

• Labor warranty: minimum 1 year on all workmanship.

• Contractor to provide fully documented warranty certificates to COR upon project completion.

4.10 Submittals

• Prior to procurement: equipment catalog cuts and specification sheets for all proposed condensing units and furnaces.

• Prior to work: personnel roster with trade licenses/certifications, project schedule, permit applications.

• Upon completion: commissioning report (see Section 4.11), TSSA gas authorization/inspection documentation, refrigerant recovery certificates, disposal manifests, warranty certificates, as-built markups if any modifications to existing drawings.

4.11 Commissioning Report

Contractor shall prepare and submit a commissioning report for each replaced unit including:

equipment make, model, and serial numbers; installed date; refrigerant type and charge weight;

static pressure readings (supply and return); measured supply air temperatures in heating and cooling modes; thermostat settings; and pass/fail status of all safety controls. Report must be signed by a licensed HVAC technician.

5.0 Individual Unit Scope of Work

The following sections provide unit-specific scope for each of the seven (7) replacement pairs.

General requirements from Section 4.0 apply to all units.

CU-1 / F-1 — Library / Dining Room Not in contract.

CU-2 / F-2 — Kitchen Not in contract.

CU-4 / F-4 — Entry and Living Room

CU-4 / F-4 — Entry and Living Room

Existing Equipment Condensing Unit: Carrier 38CK036310 | Installed: 1993 | 3 Tons / 36 MBH | Refrigerant: R-22 Furnace: Payne PG95XAT48080BAA | Installed: 2014 | 80,000 BTU Location: Basement / Ground-level pad

Notes CU is 32 years old – oldest in the building. R-22 refrigerant. Furnace (2014) is newer but paired with critically aged CU. Replacement restores full regulatory compliance for this zone.

Scope of Work

1. Demolition & Recovery

• Recover all existing R-22 refrigerant from CU-4 using EPA-certified recovery equipment. Document recovered quantity.

• Remove and properly dispose of existing condensing unit Carrier 38CK036310.

• Remove and properly dispose of existing furnace Payne PG95XAT48080BAA.

• Partial removal of refrigeration line sets to facilitate installation of condensing units and evaporator coils.

• Refer to section 4.5 Refrigerant Recovery and Disposal.

2. New Condensing Unit

• Supply and install new high-efficiency air-cooled condensing unit using R-454B, R-32, or other approved low-GWP alternative refrigerant. Capacity: minimum 3 tons / 36 MBH. SEER rating: minimum 16. Electrical:

208V / 1-phase.

• Acceptable equipment: Carrier, Trane, Lennox, or Payne high-efficiency series. Submit catalog cuts to COR for approval prior to procurement.

• Install on new concrete or composite equipment pad over 6” of clean, compacted, gravel. Coordinate installation with steel support / dunnage.

• Provide condensate drain provisions as required.

3. New Furnace

• Supply and install new high-efficiency condensing gas furnace. Heating capacity: minimum 80,000 BTU input. AFUE rating: minimum 96%. Configuration: match existing airflow direction.

• Install new Camfil Aeroplat III 1" MERV-8 filter (or approved equal) in filter rack.

• Reconfigure or replace furnace venting as required by manufacturer’s recommendations.

• Connect unit to existing thermostat/BAS control wiring providing a fully-functional control system.

• Humidification: Install new whole-home humidifier (Aprilaire 600M or equal).

4. Refrigerant Line Sets

• Supply and install new Type ACR copper refrigerant line sets (liquid and suction lines) for the full run between the indoor air handler/furnace coil and the condensing unit. Line set lengths vary significantly across the property; contractor shall field-verify each run prior to procurement and size all piping in accordance with manufacturer published equivalent length tables and ASHRAE refrigeration piping guidelines.

• Liquid line: Type ACR hard-drawn or soft-drawn copper, sized per manufacturer specifications for the verified run length. Filter-drier to be installed on liquid line.

• Suction line: Type ACR copper, sized per manufacturer specifications for the verified run length. Insulate full length with minimum 3/4" (19 mm) closed-cell elastomeric foam insulation (Armaflex or equal), all joints and fittings fully covered. Where suction line is exposed to exterior conditions or UV, provide UV-resistant jacketing.

• All line set routing to be secured with appropriate hangers and supports at maximum 1.2 m (4 ft) intervals.

Penetrations through walls, floors, or the building envelope to be sleeved and sealed with fire-rated sealant where required and weatherproofed at exterior.

• On long runs, contractor shall account for total equivalent length (TEL) including all fittings and vertical rise/drop when selecting line set diameters and shall submit line sizing calculations to the COR on request.

• Remove and dispose of all existing refrigerant piping in its entirety. Do not re-use any portion of the existing R-22 line sets.

• Nitrogen-purge, pressure test, and leak-check the completed refrigerant circuit to TSSA requirements before charging.

• Charge system with R-454B, R-32, or manufacturer-specified low-GWP alternative refrigerant to manufacturer specifications. Document refrigerant type and weight charged in commissioning report.

5. Electrical Work

• Verify and modify existing electrical disconnect and wiring as required to serve new condensing unit

(208V/1PH). Install new disconnect if existing is not compatible.

• All electrical work (disconnect, wiring, controls) to be completed by a qualified electrician. Work shall comply with the Ontario Electrical Safety Code (OESC) latest edition. No ESA permit or inspection is required for this scope.

• Install new low-voltage thermostat wiring as required for new equipment compatibility.

6. Commissioning & Testing

• Perform full operational test of heating and cooling modes; verify all safety controls, limits, and sequencing.

• Balance airflow per room; verify supply and return static pressures.

• Provide commissioning report to COR including: equipment model/serial numbers, refrigerant charge weights, static pressure readings, supply/return temperatures, and thermostat settings.

• Contractor to obtain TSSA gas work authorization as required for natural gas appliance replacement. No

City of Ottawa building permit or ESA electrical permit is required for this scope. Provide copy of TSSA authorization/inspection to COR prior to final payment.

CU-5 / F-5 — Sunroom / Kitchen

CU-5 / F-5 — Sunroom / Kitchen

Existing Equipment Condensing Unit: Payne PA10JA048000AAA | Installed: 1998 | 4 Tons / 48 MBH | Refrigerant: R-22 Furnace: York TX Series TM9X120D20MP11B | Installed: 2005 | 120,000 BTU Location: First Floor / Ground-level pad

Notes CU is 27 years old – R-22 unit approaching critical failure. York furnace (2005) is 21 years old. Serves sunroom zone on west wing.

Scope of Work

1. Demolition & Recovery

• Recover all existing R-22 refrigerant from CU-5 using EPA-certified recovery equipment. Document recovered quantity.

• Remove and properly dispose of existing condensing unit Payne PA10JA048000AAA.

• Remove and properly dispose of existing furnace York TX Series TM9X120D20MP11B.

• Partial removal of refrigeration line sets to facilitate installation of condensing units and evaporator coils.

• Refer to section 4.5 Refrigerant Recovery and Disposal.

2. New Condensing Unit

• Supply and install new high-efficiency air-cooled condensing unit using R-454B, R-32, or other approved low-GWP alternative refrigerant. Capacity: minimum 3 tons / 36 MBH. SEER rating: minimum 16. Electrical:

208V / 1-phase.

• Acceptable equipment: Carrier, Trane, Lennox, or Payne high-efficiency series. Submit catalog cuts to COR for approval prior to procurement.

• Install on new concrete or composite equipment pad over 6” of clean, compacted, gravel. Coordinate installation with steel support / dunnage.

• Provide condensate drain provisions as required.

3. New Furnace

• Supply and install new high-efficiency condensing gas furnace. Heating capacity: minimum 120,000 BTU input. AFUE rating: minimum 96%. Configuration: match existing airflow direction.

• Install new Camfil Aeroplat III 1" MERV-8 filter (or approved equal) in filter rack.

• Reconfigure or replace furnace venting as required by manufacturer’s recommendations.

• Connect unit to existing thermostat/BAS control wiring providing a fully-functional control system.

4. Refrigerant Line Sets

• Supply and install new Type ACR copper refrigerant line sets (liquid and suction lines) for the full run between the indoor air handler/furnace coil and the condensing unit. Line set lengths vary significantly across the property; contractor shall field-verify each run prior to procurement and size all piping in accordance with manufacturer published equivalent length tables and ASHRAE refrigeration piping guidelines.

• Liquid line: Type ACR hard-drawn or soft-drawn copper, sized per manufacturer specifications for the verified run length. Filter-drier to be installed on liquid line.

• Suction line: Type ACR copper, sized per manufacturer specifications for the verified run length. Insulate full length with minimum 3/4" (19 mm) closed-cell elastomeric foam insulation (Armaflex or equal), all joints and fittings fully covered. Where suction line is exposed to exterior conditions or UV, provide UV-resistant jacketing.

• All line set routing to be secured with appropriate hangers and supports at maximum 1.2 m (4 ft) intervals.

Penetrations through walls, floors, or the building envelope to be sleeved and sealed with fire-rated sealant where required and weatherproofed at exterior.

• On long runs, contractor shall account for total equivalent length (TEL) including all fittings and vertical rise/drop when selecting line set diameters and shall submit line sizing calculations to the COR on request.

• Remove and dispose of all existing refrigerant piping in its entirety. Do not re-use any portion of the existing R-22 line sets.

• Nitrogen-purge, pressure test, and leak-check the completed refrigerant circuit to TSSA requirements before charging.

• Charge system with R-454B, R-32, or manufacturer-specified low-GWP alternative refrigerant to manufacturer specifications. Document refrigerant type and weight charged in commissioning report.

5. Electrical Work

• Verify and modify existing electrical disconnect and wiring as required to serve new condensing unit

(208V/1PH). Install new disconnect if existing is not compatible.

• All electrical work (disconnect, wiring, controls) to be completed by a qualified electrician. Work shall comply with the Ontario Electrical Safety Code (OESC) latest edition. No ESA permit or inspection is required for this scope.

• Install new low-voltage thermostat wiring as required for new equipment compatibility.

6. Commissioning & Testing

• Perform full operational test of heating and cooling modes; verify all safety controls, limits, and sequencing.

• Balance airflow per room; verify supply and return static pressures.

• Provide commissioning report to COR including: equipment model/serial numbers, refrigerant charge weights, static pressure readings, supply/return temperatures, and thermostat settings.

• Contractor to obtain TSSA gas work authorization as required for natural gas appliance replacement. No

City of Ottawa building permit or ESA electrical permit is required for this scope. Provide copy of TSSA

CU-6 / F-6 — Level 2 North CU-6 / F-6 — Level 2 North

Existing Equipment Condensing Unit: Rheem RAKA-030JAZ | Installed: 2000 | 2.5 Tons / 30 MBH | Refrigerant: R-22 Furnace: Rheem RGTA-12ERAJB | Installed: 1997 | 30,000 BTU Location: Third Floor Mechanical / Ground-level pad

Notes CU 25 years old, furnace 28 years old. Part of CU-6/7/8/9 group – best replaced as single mobilization. Humidifier not currently installed – new humidifier to be provided per SOW.

Scope of Work

1. Demolition & Recovery

• Recover all existing R-22 refrigerant from CU-6 using EPA-certified recovery equipment. Document recovered quantity.

• Remove and properly dispose of existing condensing unit Rheem RAKA-030JAZ.

• Remove and properly dispose of existing furnace Rheem RGTA-12ERAJB.

• Partial removal of refrigeration line sets to facilitate installation of condensing units and evaporator coils.

• Refer to section 4.5 Refrigerant Recovery and Disposal.

2. New Condensing Unit

• Supply and install new high-efficiency air-cooled condensing unit using R-454B, R-32, or other approved low-GWP alternative refrigerant. Capacity: minimum 3 tons / 36 MBH. SEER rating: minimum 16. Electrical:

208V / 1-phase.

• Acceptable equipment: Carrier, Trane, Lennox, or Payne high-efficiency series. Submit catalog cuts to COR for approval prior to procurement.

• Install on new concrete or composite equipment pad over 6” of clean, compacted, gravel. Coordinate installation with steel support / dunnage.

• Provide condensate drain provisions as required.

3. New Furnace

• Supply and install new high-efficiency condensing gas furnace. Heating capacity: minimum 80,000 BTU input. AFUE rating: minimum 96%. Configuration: match existing airflow direction.

• Install new Camfil Aeroplat III 1" MERV-8 filter (or approved equal) in filter rack.

• Reconfigure or replace furnace venting as required by manufacturer’s recommendations.

• Connect unit to existing thermostat/BAS control wiring providing a fully-functional control system.

• Humidification: <Contractor to propose a humidification system for the Owner’s review and approval.>

4. Refrigerant Line Sets

• Supply and install new Type ACR copper refrigerant line sets (liquid and suction lines) for the full run between the indoor air handler/furnace coil and the condensing unit. Line set lengths vary significantly across the property; contractor shall field-verify each run prior to procurement and size all piping in accordance with manufacturer published equivalent length tables and ASHRAE refrigeration piping guidelines.

• Liquid line: Type ACR hard-drawn or soft-drawn copper, sized per manufacturer specifications for the verified run length. Filter-drier to be installed on liquid line.

• Suction line: Type ACR copper, sized per manufacturer specifications for the verified run length. Insulate full length with minimum 3/4" (19 mm) closed-cell elastomeric foam insulation (Armaflex or equal), all joints and fittings fully covered. Where suction line is exposed to exterior conditions or UV, provide UV-resistant jacketing.

• All line set routing to be secured with appropriate hangers and supports at maximum 1.2 m (4 ft) intervals.

Penetrations through walls, floors, or the building envelope to be sleeved and sealed with fire-rated sealant where required and weatherproofed at exterior.

• On long runs, contractor shall account for total equivalent length (TEL) including all fittings and vertical rise/drop when selecting line set diameters and shall submit line sizing calculations to the COR on request.

• Remove and dispose of all existing refrigerant piping in its entirety. Do not re-use any portion of the existing R-22 line sets.

• Nitrogen-purge, pressure test, and leak-check the completed refrigerant circuit to TSSA requirements before charging.

• Charge system with R-454B, R-32, or manufacturer-specified low-GWP alternative refrigerant to manufacturer specifications. Document refrigerant type and weight charged in commissioning report.

5. Electrical Work

• Verify and modify existing electrical disconnect and wiring as required to serve new condensing unit

(208V/1PH). Install new disconnect if existing is not compatible.

• All electrical work (disconnect, wiring, controls) to be completed by a qualified electrician. Work shall comply with the Ontario Electrical Safety Code (OESC) latest edition. No ESA permit or inspection is required for this scope.

• Install new low-voltage thermostat wiring as required for new equipment compatibility.

6. Commissioning & Testing

• Perform full operational test of heating and cooling modes; verify all safety controls, limits, and sequencing.

• Balance airflow per room; verify supply and return static pressures.

• Provide commissioning report to COR including: equipment model/serial numbers, refrigerant charge weights, static pressure readings, supply/return temperatures, and thermostat settings.

• Contractor to obtain TSSA gas work authorization as required for natural gas appliance replacement. No

City of Ottawa building permit or ESA electrical permit is required for this scope. Provide copy of TSSA

CU-7 / F-7 — Level 3 North

CU-7 / F-7 — Level 3 North

Existing Equipment Condensing Unit: Rheem RAKA-037JAZ | Installed: 2000 | 3 Tons / 36 MBH | Refrigerant: R-22 Furnace: Rheem RGTA-12ERAJB | Installed: 1997 | 36,000 BTU Location: Third Floor Mechanical / Ground-level pad

Notes CU 25 years old, furnace 28 years old. Part of CU-6/7/8/9 group. Humidifier not currently installed – new humidifier to be provided per SOW.

Scope of Work

1. Demolition & Recovery

• Recover all existing R-22 refrigerant from CU-7 using EPA-certified recovery equipment. Document recovered quantity.

• Remove and properly dispose of existing condensing unit Rheem RAKA-037JAZ.

• Remove and properly dispose of existing furnace Rheem RGTA-12ERAJB.

• Partial removal of refrigeration line sets to facilitate installation of condensing units and evaporator coils.

• Refer to section 4.5 Refrigerant Recovery and Disposal.

2. New Condensing Unit

• Supply and install new high-efficiency air-cooled condensing unit using R-454B, R-32, or other approved low-GWP alternative refrigerant. Capacity: minimum 3 tons / 36 MBH. SEER rating: minimum 16. Electrical:

208V / 1-phase.

• Acceptable equipment: Carrier, Trane, Lennox, or Payne high-efficiency series. Submit catalog cuts to COR for approval prior to procurement.

• Install on new steel supports / dunnage.

• Provide condensate drain provisions as required.

3. New Furnace

• Supply and install new high-efficiency condensing gas furnace. Heating capacity: minimum 80,000 BTU input. AFUE rating: minimum 96%. Configuration: match existing airflow direction.

• Install new Camfil Aeroplat III 1" MERV-8 filter (or approved equal) in filter rack.

• Reconfigure or replace furnace venting as required by manufacturer’s recommendations.

• Connect unit to existing thermostat/BAS control wiring providing a fully-functional control system.

4. Refrigerant Line Sets

• Supply and install new Type ACR copper refrigerant line sets (liquid and suction lines) for the full run between the indoor air handler/furnace coil and the condensing unit. Line set lengths vary significantly across the property; contractor shall field-verify each run prior to procurement and size all piping in accordance with manufacturer published equivalent length tables and ASHRAE refrigeration piping guidelines.

• Liquid line: Type ACR hard-drawn or soft-drawn copper, sized per manufacturer specifications for the verified run length. Filter-drier to be installed on liquid line.

• Suction line: Type ACR copper, sized per manufacturer specifications for the verified run length. Insulate full length with minimum 3/4" (19 mm) closed-cell elastomeric foam insulation (Armaflex or equal), all joints and fittings fully covered. Where suction line is exposed to exterior conditions or UV, provide UV-resistant jacketing.

• All line set routing to be secured with appropriate hangers and supports at maximum 1.2 m (4 ft) intervals.

Penetrations through walls, floors, or the building envelope to be sleeved and sealed with fire-rated sealant where required and weatherproofed at exterior.

• On long runs, contractor shall account for total equivalent length (TEL) including all fittings and vertical rise/drop when selecting line set diameters and shall submit line sizing calculations to the COR on request.

• Remove and dispose of all existing refrigerant piping in its entirety. Do not re-use any portion of the existing R-22 line sets.

• Nitrogen-purge, pressure test, and leak-check the completed refrigerant circuit to TSSA requirements before charging.

• Charge system with R-454B, R-32, or manufacturer-specified low-GWP alternative refrigerant to manufacturer specifications. Document refrigerant type and weight charged in commissioning report.

5. Electrical Work

• Verify and modify existing electrical disconnect and wiring as required to serve new condensing unit

(208V/1PH). Install new disconnect if existing is not compatible.

• All electrical work (disconnect, wiring, controls) to be completed by a qualified electrician. Work shall comply with the Ontario Electrical Safety Code (OESC) latest edition. No ESA permit or inspection is required for this scope.

• Install new low-voltage thermostat wiring as required for new equipment compatibility.

6. Commissioning & Testing

• Perform full operational test of heating and cooling modes; verify all safety controls, limits, and sequencing.

• Balance airflow per room; verify supply and return static pressures.

• Provide commissioning report to COR including: equipment model/serial numbers, refrigerant charge weights, static pressure readings, supply/return temperatures, and thermostat settings.

• Contractor to obtain TSSA gas work authorization as required for natural gas appliance replacement. No

City of Ottawa building permit or ESA electrical permit is required for this scope. Provide copy of TSSA

CU-8 / F-8 — Level 2 South

CU-8 / F-8 — Level 2 South

Existing Equipment Condensing Unit: Rheem RAKA-037JAZ | Installed: 2000 | 3 Tons / 36 MBH | Refrigerant: R-22 Furnace: Rheem RGRA-12ERAJB | Installed: 2000 | 36,000 BTU Location: Third Floor Mechanical / Ground-level pad

Notes CU and furnace both 25 years old. General 570 humidifier in place – to be replaced. Part of CU-6/7/8/9 group.

Scope of Work

1. Demolition & Recovery

• Recover all existing R-22 refrigerant from CU-8 using EPA-certified recovery equipment. Document recovered quantity.

• Remove and properly dispose of existing condensing unit Rheem RAKA-037JAZ.

• Remove and properly dispose of existing furnace Rheem RGRA-12ERAJB.

• Partial removal of refrigeration line sets to facilitate installation of condensing units and evaporator coils.

• Refer to section 4.5 Refrigerant Recovery and Disposal.

2. New Condensing Unit

• Supply and install new high-efficiency air-cooled condensing unit using R-454B, R-32, or other approved low-GWP alternative refrigerant. Capacity: minimum 3 tons / 36 MBH. SEER rating: minimum 16. Electrical:

208V / 1-phase.

• Acceptable equipment: Carrier, Trane, Lennox, or Payne high-efficiency series. Submit catalog cuts to COR for approval prior to procurement.

• Install on new steel supports / dunnage.

• Provide condensate drain provisions as required.

3. New Furnace

• Supply and install new high-efficiency condensing gas furnace. Heating capacity: minimum 36,000 BTU input. AFUE rating: minimum 96%. Configuration: match existing airflow direction.

• Install new Camfil Aeroplat III 1" MERV-8 filter (or approved equal) in filter rack.

• Reconfigure or replace furnace venting as required by manufacturer’s recommendations.

• Connect unit to existing thermostat/BAS control wiring providing a fully-functional control system.

4. Refrigerant Line Sets

• Supply and install new Type ACR copper refrigerant line sets (liquid and suction lines) for the full run between the indoor air handler/furnace coil and the condensing unit. Line set lengths vary significantly across the property; contractor shall field-verify each run prior to procurement and size all piping in accordance with manufacturer published equivalent length tables and ASHRAE refrigeration piping guidelines.

• Liquid line: Type ACR hard-drawn or soft-drawn copper, sized per manufacturer specifications for the verified run length. Filter-drier to be installed on liquid line.

• Suction line: Type ACR copper, sized per manufacturer specifications for the verified run length. Insulate full length with minimum 3/4" (19 mm) closed-cell elastomeric foam insulation (Armaflex or equal), all joints and fittings fully covered. Where suction line is exposed to exterior conditions or UV, provide UV-resistant jacketing.

• All line set routing to be secured with appropriate hangers and supports at maximum 1.2 m (4 ft) intervals.

Penetrations through walls, floors, or the building envelope to be sleeved and sealed with fire-rated sealant where required and weatherproofed at exterior.

• On long runs, contractor shall account for total equivalent length (TEL) including all fittings and vertical rise/drop when selecting line set diameters and shall submit line sizing calculations to the COR on request.

• Remove and dispose of all existing refrigerant piping in its entirety. Do not re-use any portion of the existing R-22 line sets.

• Nitrogen-purge, pressure test, and leak-check the completed refrigerant circuit to TSSA requirements before charging.

• Charge system with R-454B, R-32, or manufacturer-specified low-GWP alternative refrigerant to manufacturer specifications. Document refrigerant type and weight charged in commissioning report.

5. Electrical Work

• Verify and modify existing electrical disconnect and wiring as required to serve new condensing unit

(208V/1PH). Install new disconnect if existing is not compatible.

• All electrical work (disconnect, wiring, controls) to be completed by a qualified electrician. Work shall comply with the Ontario Electrical Safety Code (OESC) latest edition. No ESA permit or inspection is required for this scope.

• Install new low-voltage thermostat wiring as required for new equipment compatibility.

6. Humidifier

• Remove and dispose of existing General 570 humidifier. Install new whole-home humidifier (Aprilaire 600M or equal).

7. Commissioning & Testing

• Perform full operational test of heating and cooling modes; verify all safety controls, limits, and sequencing.

• Balance airflow per room; verify supply and return static pressures.

• Provide commissioning report to COR including: equipment model/serial numbers, refrigerant charge weights, static pressure readings, supply/return temperatures, and thermostat settings.

• Contractor to obtain TSSA gas work authorization as required for natural gas appliance replacement. No

City of Ottawa building permit or ESA electrical permit is required for this scope. Provide copy of TSSA

CU-9 / F-9 — Level 3 South

CU-9 / F-9 — Level 3 South

Existing Equipment Condensing Unit: Rheem RAKA-042JAZ | Installed: 1999 | 3.5 Tons / 42 MBH | Refrigerant: R-22 Furnace: Rheem RGRA-12ERAJB | Installed: 2000 | 42,000 BTU Location: Third Floor Mechanical / Ground-level pad

Notes CU 26 years old. General 570 humidifier in place – to be replaced. Largest of the CU-6/7/8/9 group.

Scope of Work

1. Demolition & Recovery

• Recover all existing R-22 refrigerant from CU-9 using EPA-certified recovery equipment. Document recovered quantity.

• Remove and properly dispose of existing condensing unit Rheem RAKA-042JAZ.

• Remove and properly dispose of existing furnace Rheem RGRA-12ERAJB.

• Partial removal of refrigeration line sets to facilitate installation of condensing units and evaporator coils.

• Refer to section 4.5 Refrigerant Recovery and Disposal.

2. New Condensing Unit

• Supply and install new high-efficiency air-cooled condensing unit using R-454B, R-32, or other approved low-GWP alternative refrigerant. Capacity: minimum 3.5 tons / 42 MBH. SEER rating: minimum 16.

Electrical: 208V / 1-phase.

• Acceptable equipment: Carrier, Trane, Lennox, or Payne high-efficiency series. Submit catalog cuts to COR for approval prior to procurement.

• Install on new steel supports / dunnage.

• Provide condensate drain provisions as required.

3. New Furnace

• Supply and install new high-efficiency condensing gas furnace. Heating capacity: minimum 42,000 BTU input. AFUE rating: minimum 96%. Configuration: match existing airflow direction.

• Install new Camfil Aeroplat III 1" MERV-8 filter (or approved equal) in filter rack.

• Reconfigure or replace furnace venting as required by manufacturer’s recommendations.

• Connect unit to existing thermostat/BAS control wiring providing a fully-functional control system.

4. Refrigerant Line Sets

• Supply and install new Type ACR copper refrigerant line sets (liquid and suction lines) for the full run between the indoor air handler/furnace coil and the condensing unit. Line set lengths vary significantly across the property; contractor shall field-verify each run prior to procurement and size all piping in accordance with manufacturer published equivalent length tables and ASHRAE refrigeration piping guidelines.

• Liquid line: Type ACR hard-drawn or soft-drawn copper, sized per manufacturer specifications for the verified run length. Filter-drier to be installed on liquid line.

• Suction line: Type ACR copper, sized per manufacturer specifications for the verified run length. Insulate full length with minimum 3/4" (19 mm) closed-cell elastomeric foam insulation (Armaflex or equal), all joints and fittings fully covered. Where suction line is exposed to exterior conditions or UV, provide UV-resistant jacketing.

• All line set routing to be secured with appropriate hangers and supports at maximum 1.2 m (4 ft) intervals.

Penetrations through walls, floors, or the building envelope to be sleeved and sealed with fire-rated sealant where required and weatherproofed at exterior.

• On long runs, contractor shall account for total equivalent length (TEL) including all fittings and vertical rise/drop when selecting line set diameters and shall submit line sizing calculations to the COR on request.

• Remove and dispose of all existing refrigerant piping in its entirety. Do not re-use any portion of the existing R-22 line sets.

• Nitrogen-purge, pressure test, and leak-check the completed refrigerant circuit to TSSA requirements before charging.

• Charge system with R-454B, R-32, or manufacturer-specified low-GWP alternative refrigerant to manufacturer specifications. Document refrigerant type and weight charged in commissioning report.

5. Electrical Work

• Verify and modify existing electrical disconnect and wiring as required to serve new condensing unit

(208V/1PH). Install new disconnect if existing is not compatible.

• All electrical work (disconnect, wiring, controls) to be completed by a qualified electrician. Work shall comply with the Ontario Electrical Safety Code (OESC) latest edition. No ESA permit or inspection is required for this scope.

• Install new low-voltage thermostat wiring as required for new equipment compatibility.

6. Humidifier

• Remove and dispose of existing General 570 humidifier. Install new whole-home humidifier (Aprilaire 600M or equal).

7. Commissioning & Testing

• Perform full operational test of heating and cooling modes; verify all safety controls, limits, and sequencing.

• Balance airflow per room; verify supply and return static pressures.

• Provide commissioning report to COR including: equipment model/serial numbers, refrigerant charge weights, static pressure readings, supply/return temperatures, and thermostat settings.

• Contractor to obtain TSSA gas work authorization as required for natural gas appliance replacement. No City of Ottawa building permit or ESA electrical permit is required for this scope. Provide copy of TSSA

SECTION C - PACKAGING AND MARKING

Mark materials delivered to the site as follows: CMR HVAC

SECTION D - INSPECTION AND ACCEPTANCE

The COR, or his/her authorized representatives, will inspect from time to time the services being…