A05_ATT_2_Performance_Work_Statement_PORE_Replace_Furnace.pdf

POINT REYES NATIONAL SEASHORE

Point Reyes Station, California

Ranger HQ: Replace Broken Propane Furnace with Electric

PORE Work Order No. 2722224924995

PROJECT SPECIFICATIONS

NATIONAL PARK SERVICE (NPS)

Point Reyes National Seashore

January 30, 2025

PORE WO# 2722224924995 23 81 43-2

SECTION 23 81 43

Air-Source Unitary Heat pumps

PART 1 - GENERAL

1.1 DESCRIPTION

A. This Section specifies electrically operated air-source unitary heat pump system to be installed.

B. Definitions:

1. Coefficient of Performance (COP) - Cooling: The ratio of the rate of heat removed to the rate of energy input in consistent units, for a complete refrigerating system or some specific portion of that system under designated operating conditions.

2. Coefficient of Performance (COP) - Heating: The ratio of the rate of heat delivered to the rate of energy input is consistent units for a complete heat pump system, including the compressor and, if applicable, auxiliary heat under designated operating conditions.

3. Energy Efficiency Ratio (EER): The ratio of net cooling capacity is Btu/h to total rate of electricity input in watts under designated operating conditions.

4. Heating Seasonal Performance Factor (HSPF) - Total heating output of heat pump during its normal annual usage period for heating in Btu/h divided by total electric energy input in watts during the same period.

5. Seasonal Energy Efficiency Ratio (SEER) - Total cooling output of an air conditioner during its normal annual usage period for cooling in Btu/h divided by total electric energy input in watts during the same period.

6. Air-Source Unitary Heat Pump: One or more factory-made assemblies that normally include an indoor conditioning coil, compressor(s) and an outdoor refrigerant-to-air coil. These units provide both heating and cooling functions.

1.2 RELATED WORK

A. Division 01 specifications.

1.3 QUALITY ASSURANCE:

A. Comply with ASHRAE Standard 15, Safety Code for Mechanical Refrigeration.

B. Comply with ASHRAE Standard 90.1, Energy Standard for Buildings except Low-Rise

Residential Buildings for cooling and heating performance requirements when tested in accordance with AHRI 240AHRI 360 and UL 1995.

C. Heating Performance shall conform to ASHRAE requirements when tested in accordance with

AHRI 240 AHRI 360 and UL 1995.

D. Comply with requirements in Section 13 05 41, Seismic Restraint Requirements for Non-

Structural Components.

PART 2- PRODUCTS

2.1 UNITARY HEAT PUMPS, AIR TO AIR

Heat Pump basis of design - Mitsubishi SUZ-KA36NAHZ. Must meet salient characteristics or equal:

A. Heating at 47°F

1. Maximum Capacity – 40,000 BTU/H

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2. Rated Capacity – 37,000 BTU/H

3. Minimum Capacity – 13,800 BTU/H

4. Maximum Power Input – 3,280 W

5. Rated Power Input – 3,760 W

6. Power Factor (208V/230V) – 98.0/98.0

B. Heating at 17°F

1. Maximum Capacity – 37,000 BTU/H

2. Rated Capacity – 32,800 BTU/H

3. Maximum Power Input – 5,800 W

4. Rated Power Input – 4,230 W

5. Power Factor (208V/230V) – 98.0/98.0

C. Heating at 5°F

1. Maximum Capacity – 37,000 BTU/H

2. Maximum Power Input – 6,590 W

D. Heating at -13°F

1. Maximum Capacity – 29,600 BTU/H

E. Efficiency

1. Heating Season Performance Factor (HSPF[IV]) – 9.0

2. Seasonal Energy Efficiency Ratio (SEER) - 16.0

3. Energy Efficiency Ratio (EER) – 9.5

4. Coefficient of Performance (COP) at 47 F – 3.3

5. COP at 17°F at Maximum Capacity – 1.8

6. COP at 5°F at Maximum Capacity – 1.6

F. Electrical

1. Voltage / Phase / Frequency – 208-230 V / 1 / 60 Hz

2. Guaranteed Voltage Range – 187 – 253 V

3. Seasonal Energy Efficiency Ratio (SEER) - 16.0

G. Miscellaneous

1. Voltage / Phase / Frequency – 208-230 V / 1 / 60 Hz

2. Guaranteed Voltage Range – 187 – 253 V

3. Seasonal Energy Efficiency Ratio (SEER) - 16.0

4. Minimum Circuit Ampacity (MCA) – 26.0 A

5. Maximum Overcurrent Protection (MOCP) – 42 A

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6. Fan Motor Output – 74 W

7. Airflow Rate (Heating) – 680 CFM

8. Sound Pressure Level, Heating – 53 dB

9. Compressor Type - Scroll

Air Handler basis of design - Mitsubishi SUZ-KP36NA. Must meet salient characteristics or equal:

A. Miscellaneous

1. Air handler to be powered by the outdoor unit.

2. MCA – 4.13 A

3. Fan Motor Full Load Amperage – 3.3 A

4. Fan Motor Type – DC Motor

5. Air Flow Rate at Heating, Dry – 767-910-910 CFM

6. Sound Pressure Level (Heating) – 35-40-42 dB

7. External Static Pressure – 0.30-0.5-0.8 in.WG

Controller basis of design – Mitsubishi MHK2 Controller. Must meet salient characteristics or equal:

1. Controller shall be recommended by system manufacturer for use to control the system.

2. Controller shall include all parts and accessories to install and control the system as recommended by the manufacturer.

3. Controller shall be programmable to schedule the operation of the system on a weekly basis.

4. Controller can be wired or wireless.

A. Applicable AHRI Standards: Units shall be listed in the corresponding ARI Directory of Certified products shown in paragraph, APPLICABLE PUBLICATIONS:

1. Air Source Unitary heat pumps with capacity less than 19 KW (65,000 Btu/hr), Comply with

AHRI 210/240.

PART 3- EXECUTION

1.1 Installation

A. Install heat pumps according to manufacturers printed instructions. Outdoor unit shall be installed on a pad outside of the building according to manufacturer’s recommendations.

B. Install electrical and control devices furnished by the manufacturer but not specified to be factory mounted. All electrical work shall comply with applicable building codes.

C. Piping: Comply with manufacturer requirements and industry standards.

D. Submit shop drawings showing how system is to be installed for approval before installation.

1.2 Startup and testing:

A. Perform startup checks according to manufacturer’s written instructions.

C. Test controls and demonstrate its compliance with project requirements. Replace damaged or

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malfunctioning controls and equipment and retest the equipment to the satisfaction of the COR.

D. Furnish test reports to the COR in accordance with specification Section 01 00 00, GENERAL

REQUIREMENTS.

1.3 Instructions

Instruct NPS personnel in operation and maintenance of heat pumps.

1.4 Demonstration and Training

A. Instruct NPS personnel in operation and maintenance of units.

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