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// CODE SNIPPET

C403.4.3.2.1 Fan Motors Not Less Than 7.5 HP

New York State Energy Conservation Construction Code (NYSECCC) > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.4 Hydronic and Multiple-Zone HVAC Systems Controls and Equipment. (Prescriptive) > C403.4.3 Heat Rejection Equipment > C403.4.3.2 Fan Speed Control > C403.4.3.2.1 Fan Motors Not Less Than 7.5 HP
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Each fan powered by a motor of 7.5 hp (5.6 kW) or larger shall have the capability to operate that fan at two-thirds of full speed or less, and shall have controls that automatically change the fan speed to control the leaving fluid temperature or condensing temperature/pressure of the heat rejection device.

Exception: The following fan motors over 7.5 hp (5.6 kW) are exempt:

  1. Condenser fans serving multiple refrigerant circuits.
  2. Condenser fans serving flooded condensers.
  3. Installations located in Climate Zones 1 and 2.

Related Code Sections


C403.4.3.2.1 [CE] Commercial Energy Efficiency, Fan Motors Not Less Than 7.5 HP
Each fan powered by a motor of 7.5 hp (5.6 kW) or larger shall have the capability to operate that fan at two-thirds of full speed or less, and shall ...
New York State Energy Conservation Construction Code (NYSECCC) > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.4 Hydronic and Multiple-Zone HVAC Systems Controls and Equipment. (Prescriptive) > C403.4.3 Heat Rejection Equipment > C403.4.3.2 Fan Speed Control > C403.4.3.2.1 Fan Motors Not Less Than 7.5 HP
C403.8 [CE] Commercial Energy Efficiency, Fans and Fan Controls
1). Exception: Fans with motor nameplate horsepower less than 1 hp (746 W) are exempt from this section ...
2020 Energy Conservation Code of NYS > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.8 Fans and Fan Controls
503.4.4 Commercial Energy Efficiency, Heat Rejection Equipment Fan Speed Control
Each fan powered by a motor of 7.5 hp (5.6 kW) or larger shall have the capability to operate that fan at two-thirds of full speed or less, and shall ...
2010 Energy Conservation Code of NY > 5 Commercial Energy Efficiency > 503 Building Mechanical Systems > 503.4 Complex HVAC Systems and Equipment (Prescriptive) > 503.4.4 Heat Rejection Equipment Fan Speed Control
C403.2.12.2 [CE] Commercial Energy Efficiency, Motor Nameplate Horsepower
available motor size greater than the following: For fans less than 6 bhp (4413 W), 1.5 times the fan brake horsepower. For fans 6 bhp (4413 W ...
New York State Energy Conservation Construction Code (NYSECCC) > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.2 Provisions Applicable to All Mechanical Systems (Mandatory) > C403.2.12 Air System Design and Control > C403.2.12.2 Motor Nameplate Horsepower
C403.8.3 [CE] Commercial Energy Efficiency, Fan Efficiency (Mandatory)
) or less as follows: 1.1. Individual fans with a motor nameplate horsepower of 5 hp (3.7 kW) or less, unless Exception 1.2 applies. 1.2. Multiple fans ...
2020 Energy Conservation Code of NYS > 4 [CE] Commercial Energy Efficiency > C403 Building Mechanical Systems > C403.8 Fans and Fan Controls > C403.8.3 Fan Efficiency (Mandatory)
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