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CSA 2.37-2007 pdf free download

CSA 2.37-2007 pdf free download.Gas – fired Outdoor Infrared Patio Heaters.
3. Every opening shall have minimum dimensions to permit the entrance of a ‘/ in (3.2, mm) diameter rod.
4. Ventilation openings in sidewalls shall not communicate directly with other enclosures of the heater.
The cylinder valve shall be readily accessible for hand operation. A door on the enclosure to gain access to the cylinder valves is acceptable, provided it is non-locking and can be opened without the use of tools. Designs using a cover to gain access to the cylinder and cylinder valve shall be provided with handles or equivalent at a minimum of 180 degrees apart to facilitate lifting of the cover.
The enclosure for the IP-gas cylinder shall isolate the cylinder from the burner compartment to provide (1) shielding from radiation; (2) a flame barrier; and (3) protection from foreign material, such as hot drippings.
There shall be a minimum clearance of 2 in (50.8 mm) between the floor of the IP-gas cylinder enclosure and the ground.
The design of the heater shall be such that (1) the LP-gas cylinder can be connected, disconnected and the connections inspected and tested outside the cylinder enclosure; and (2) those connections which could be disturbed when installing the cylinder in the enclosure can be leak tested inside the enclosure. (Also see
1.21 .3-b4).
1.17 Manual Valves
Manual gas appliance valves on heaters intended for operation at inlet gas pressures not exceeding ‘/ psi
(3.5 kPa) shall comply with the provisions of either the Standard for Manually Operated Gas Valves for
Appliances. Appliance Connector Valves and Hose End Valves, ANSI Z2 1,15 • CGA 9.1; or Combination Gas
Controls for Gas Appliances, ANSI Z21.78 • CSA 6.20, as applicable.
Manual gas valves on heaters intended for operation at inlet gas pressure exceeding ‘I, psi (3.5 kPa) shall be suitable for the gas and pressures to which they will be exposed. Valve bodies, casings and parts intended to maintain gastightness to the atmosphere when the valve is in either the open or closed position shall be made of material having a melting point of not less than 800°F (427°C). Shaft seals, gaskets and lubricants shall be exempt from the 800°F (427°C) melting point requirement. These valves shall also comply with 1.2.11 and 2.17, Manual Valves.CSA 2.37-2007 pdf free download.

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