C04 SOW 1240LT27Q0199.docx

Section C - Description/Specifications/Statement of Work

GENERAL SPECIFICATIONS

FORESTWIDE HVAC REPAIRS/REPLACMENTS FY26

SCOPE OF CONTRACT

This project includes repairing or replacing various HVAC equipment located at various locations across the Payette National Forest.

The work includes the following:

McCall Helibase-Replacement of an existing outdoor air conditioning unit Krassel District Office-Replacement of existing coil in north outdoor air conditioning unit Council Engine Bay-Replacement of an existing ceiling mounted propane unit Optional work includes the following:

Supervisors Office-Repair of the three existing systems IT room system-Repair leak in outdoor coil and communication issues Outdoor air system-Repair identified issues Multi-zone system-Repair monitoring of pumps Multi-zone system-Install three-phase power monitor & conditioner Quantities associated with these options are identified in the Schedule of Items.

PROJECT LOCATION

The site locations for the base work are as follows:

McCall Helibase – 605 South Mission Street Bldg. #3, McCall, ID 83638 Council Yard Engine Bay – 201 North Dartmounth Street (Hwy 95), Council, ID 83612 Krassel District Office – 500 North Mission Street Bldg. #1, McCall, ID 83638 The site location for Option 1 is as follows:

McCall Supervisors Office – 500 North Mission Street Bldg. #2, McCall, ID 83638

SITE INFORMATION AND LIMITATIONS

The following site conditions are considered incidental to the contract and the contractor will not be paid directly for any of the following items:

Construction sites will be open to Forest Service employees during construction. The Contractor will be responsible for signing and limiting access where necessary. Contractor will be responsible to work with COR on schedule and construction so as to minimize disturbance to the users of the facilities.

Water is available at the site for construction purposes.

Utilities are available at the site for construction purposes.

Bathroom facilities are available onsite.

TRAFFIC CONTROL AND CONSTRUCTION SIGNING

No work that endangers, interferes, or conflicts with traffic or access to work sites shall be performed until a plan for satisfactory warning and handling of traffic has been submitted by the contractor and approved by the CO and Local Transportation Authority. Construction signing for traffic control shall conform to the Manual of Uniform Traffic Control Devices (MUTCD). All traffic control signs will be placed in areas adequate for a truck pulling a fifth wheel trailer to be turned around. Contractor shall not be paid directly for this item, rather it will be considered incidental to other items of work listed in the Schedule of Items.

Signing and barricades shall be adequate to protect Forest Service employees and the public.

WORK CAMPS, STAGING AND STORAGE AREAS

Areas for staging operations and storage of materials shall be approved by the CO. The Contractor must request in writing for approval from the CO to stage trailers (work) on site.

No overnight camping will be allowed on site.

INSPECTION OF WORKSITE

The contractor acknowledges they have taken the necessary steps to ascertain the nature and location of work and have investigated and satisfied themselves as to the general and local conditions that can affect the work or its cost (e.g. inclement weather, travel times to/from work sites, availability of accommodation and amenities at or near work sites, etc). Any failure of the contractor to take the actions described and acknowledged in this paragraph will not relieve the Contractor from the responsibility of estimating properly the difficulty and cost of successfully performing the work, or for proceeding to successfully perform the work without additional expenses to the government.

START DATE

September 2026

CONTRACT TIME

30 Calendar Days

END OF SECTION C

MAY 2019

SECTION C - DESCRIPTION/SPECIFICATIONS/STATEMENT OF WORK 000001-2

USDA FOREST SERVICE, R4

FORESTWIDE HVAC REPAIRS/REPLACEMENTS FY26

SECTION 000050 - PROJECT DESCRIPTION

1. GENERAL

0.1 SUMMARY

A. This item shall consis

0.2 MEASUREMENT AND PAYMENT

A. Measurement shall be the JOB completed and ready for use. The quantity measured shall be paid for at the contract Lump Sum price as shown on the Schedule of Items.

1.3 RELATED WORK

B. The work shall be in accordance with the following project description.

PART 1 - PRODUCTS - Not Applicable

PART 2 - EXECUTION

2.1 BASE WORK

1. McCall Helibase-Replacement of existing outdoor condenser unit

a. Remove and dispose of the existing outdoor air conditioner unit located at the southeast corner of the building. See photo for condenser unit location.

1) Existing outdoor condenser unit to be removed is an American Standard Model# 4A7A3024E1000AA, Serial# 12184HNW3F, 208/230 Volts, 1 phase, 60Hz, 12.0 Amp, 1/8 HP, manufacture date 5/2012.

b. Replace the coil within the existing indoor unit: American Standard Model# AUH2B080A9V3VAC, Serial# 12193T9A7G, 208/230 Volts, 1 phase, 60Hz, 12.0 Amp, 1/8 HP, manufacture date 5/2012.

c. Ensure functionality of control wiring of system. Retain existing control wiring or replace if needed. If substantial length of wiring is needed to be replaced, a modification request can be submitted.

d. Examine existing refrigerant piping and ensure its integrity, repair/replace as necessary. Piping can be utilized for new type of refrigerant if flushed.

e. Provide and install new outdoor condenser unit at location of existing unit.

1) The new outdoor unit must be compatible with the existing indoor unit as well as meeting or exceeding key specifications as follows:

2) The unit shall have at least a 5-year warranty for the equipment.

3) Anchor unit to concrete slab per manufacturers recommendation.

f. Rework existing electrical connections as needed and replace any damaged conduits and/or conductors.

2. Krassel District Office-Replacement of coil in existing north outdoor air conditioner unit Remove and replace the existing coil in the outdoor air conditioner unit located on the west dock of the building.

Existing outdoor condenser unit to be removed is an Lennox Model# XC16S024-230-04, Serial# 5817B14911, 208/230 Volts, 1 phase, 60Hz, 15.7 Amp, 1/6 HP.

a. Examine existing refrigerant piping and ensure its integrity, repair/replace as necessary. Recharge system with R-410 refrigerant.

b. Ensure system is functioning normally.

3. Council Yard Engine Bay-Replacement of existing ceiling mounted propane unit heater in engine.

a. Remove and dispose of existing LPG unit heater (Lennox LF24-75A-P LPG) within the engine bay at the Council Yard Engine Bay building.

b. Provide and install new LPG unit heater at location of existing unit.

1) The new LPG unit heater shall meet or exceed key specifications as follows:

2) The unit shall have at least a 5-year warranty for the equipment.

c. Rework existing electrical/propane connections as needed.

2.2 OPTIONAL WORK (Payette NF Supervisor’s Office)

1. Payette NF Supervisor’s Office has three existing HVAC systems as described below:

1) IT room system is a single zone ductless split system air conditioner (cooling only), Daikin Skyair RZR series.

b. Outdoor air system is a ducted indoor air handler, Daikin FXMQ, paired with an outdoor VRV heat pump, Daikin RXYQ.

c. Multi zone system is a ducted system with local air handlers served by three ground source heat pumps in the mechanical room of the building.

d. All HVAC systems and equipment are connected to a central control panel (Dakin ITM) which is located in the mechanical room of the building. This control panel has the capacity to be remotely accessed for diagnostic purposes.

2. OPTION 1

a. Repair existing IT room HVAC system.

1) Inspect system to identify any issues with system and communicate those to the COR.

2) Resolve all known issues with the existing system including a refrigerant leak at the outdoor unit heat exchanger coil and communication errors between the units and the central ITM. Error history of system is shown in below table.

b. Repair existing Outside Air HVAC system

1) Inspect system to identify any issues with system and communicate those to the COR.

2) Resolve all known issues with the existing system.

c. Repair monitoring of multi-zone system pumps.

1) The central control panel (Daikin ITM) for the building HVAC systems monitors the operation of two pumps (ground source loop) for the building multizone system.

2) Sensors and wiring are in place to monitor pump operation and trigger an alarm if either pump shuts down.

3) This monitoring and alarm system is currently not working and needs to be repaired. The pumps and controls are shown in the photos.

d. Install three-phase power monitor and conditioner for multi-zone system.

1) The multizone system frequently shuts down completely due to a power phase error (Daikin error code U2). This error causes shutdown of all twenty four air handlers throughout the building, leaving the entire building without HVAC.

2) After power cycling all equipment connected to the building multi zone system the error code is cleared and the building multi zone system resumes operation.

3) A three-phase power monitor and conditioner shall be installed per manufacturers recommendations for each condenser in the mechanical room (three units, each unit labeled HRU 1) to correct this problem with the building multi zone system. Basis of design is ICM Controls ICM450A or ICM450+.

2.3 BUILDING ENVIRONMENT

A. Contractor shall maintain a clean, dust free office environment throughout the progress of work.

2.4 WORK NOT INCLUDED

A. N/A.

2.5 ALL OTHER PRODUCTS AND EXECUTION

A. Work shall be in accordance with the project description.

END OF SECTION

August 2026

PROJECT DESCRIPTION 000050-8

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