Building service systems and equipment.

CFR · 2024-01-01 · US · Title 10

404.1 404.1.1 (a) When testing an electric storage water heater, the procedures of Z21.10.3-1990 (RS-39, incorporated by reference, see § 434.701), Section 2.9, shall be used. The electrical supply voltage shall be maintained with ±1% of the center of the voltage range specified on the water heater nameplate. Also, when needed for calculations, the thermal efficiency (E (b) The following modifications shall be made: A vertical length of flue pipe shall be connected to the flue gas outlet of sufficient height to establish the minimum draft specified in the manufacturer's installation instructions. All measurements of oil consumption shall be taken by instruments with an accuracy of ±1% or better. The burner rate shall be adjusted to achieve an hourly Btu input rate within ±2% of the manufacturer's specified input rate with the CO 404.1.2 404.1.3 404.1.4 404.2 404.2.1 Vertical risers serving storage water heaters not having an integral heat trap and serving a noncirculating system shall have heat traps on both the inlet and outlet piping as close as practical to the water heater. 404.3 404.3.1 The outlet temperature of lavatory faucets in public facility restrooms shall be limited to 110 °F. 404.4 404.4.1 Lavatory faucets in public facility restrooms shall be equipped with a foot switch, occupancy sensor, or similar device or, in other than lavatories for physically handicapped persons, limit water delivery to 0.25 gal/cycle. 404.5 404.5.1 Time switches shall be installed on el

official document · source cfr-2024 · id 10:§ 434.404