valutazioni - 3, GPA: 4.3 ( )

Produttore : Roberts Gorden File Size : 2.2 mb File Nome : Lingua di insegnamento:

A piece of flexible air duct connects this burner box to a flange on the cabinet. Combustion air should be ducted from outside the heated space, with the ductwork connecting to the unit with the use of the flange. • Stainless Steel Heat Exchanger: A stainless steel heat exchanger unit shall consist of heat exchanger tubes, heat exchanger tube supports, heat exchanger tube plates and vent box produced of 409 stainless steel. 3.3 Location and Suspension All models: • Must be installed indoors. • Must be installed on the positive pressure side of the air circulation blower. • Must be installed in a level position with horizontal discharge. • May be mounted on a shelf of non-combustible material using shelf mounting brackets.(See Page 9, Figure 4 and Page 9, Figure 5 for details.) • May be suspended from above (See Page 8, Figure 3) or from wall brackets of sufficient strength to support the heater as listed in the Dimension Data Table on Page 40, Section 15.1. • Must be installed in a manner which allows access to all serviceable components. See Page 3, Figure 1 for details. 3.4 Minimum Required Installation Clearances Clearances around the heater and vent must be as indicated on Page 3, Figure 1 and Page 13, Figure 6 through Page 16, Figure 11 to ensure access for servicing, and correct operation. 3.5 Clearances to Combustibles WARNING Fire Hazard Some objects can catch fire or explode when placed close to heater. Keep all flammable objects, liquids and vapors the required clearances to combustibles away from heater. Failure to follow these instructions can result in death, injury or property damage. Clearances must be as indicated on Page 3, Figure 1. If clearances to combustibles are not indicated, then installation clearances apply. Figure 1: Clearances to Combustibles Clearance to Vent: 2" (5 cm) *18" (46 cm) minimum is necessary for servicing. UHD LOW PROFILE DUCT FURNACE INSTALLATION OPERATION AND SERVICE MANUAL 3.6 Ventilation 3.8 Electrical Supply WARNING Carbon Monoxide Hazard Heaters may be installed vented or unvented. Vented heaters must be vented outdoors. Unvented heaters must be installed in buildings with ventilation rates as per section 6.4. Failure to follow these instructions can result in death or injury. It is important to ensure that there is adequate air space around the heater to supply air for combustion, ventilation and distribution in accordance with local and national codes. See Page 10, Section 6. 3.7 Gas Supply WARNING Fire Hazard Connect gas supply according to Figure 12. Do not use gas supply pipe and electrical connections to support heater’s weight. Gas can leak if not installed properly. Failure to follow these instructions can result in death, injury or property damage. It is important that the gas supply pipe is sized correctly to provide the inlet pressure as stated on the heater data plate. The gas supply pipe and electrical connections must not support any of the heater's weight. See Page 18, Section 8. WARNING Electrical Shock Hazard Disconnect electrical and gas supply before servicing. This appliance must be connected to a properly grounded electrical source. Failure to follow these instructions can result in death or electrical shock. A permanent 120 V /1 O/60 Hz electrical supply is required for the main electrical power. The heater also requires suitable controls in accordance with Page 19, Section 9. 3.9 Vent Choose heater orientation to allow for proper location of the vent. Each heater must be fitted with a correctly sized sealed vent system. If vented horizontally, no other appliance may be connected to the vent. See Page 10, Section 6. SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES SECTION 4: NATIONAL STANDARDS AND APPLICABLE CODES 4.1 Gas Codes 4.3 Parking Structures and Repair Garages The type of gas appearing on the name plate must be the type of gas used. Installation must comply with national and local codes and requirements of the local gas company. United States: Refer to NFPA 54/ ANSI Z223.1 - latest revision, National Fuel Gas Code. Canada: Refer to CSA B149.1 Natural Gas and Propane Installation Code. 4.2 Aircraft Hangars Installation in aircraft hangars must be in accordance with the following codes: United States: Refer to Standard for Aircraft Hangars, NFPA 409 - latest revision. Canada: Refer to Standard CSA B149.1 Natural Gas and Propane Installation Code. • In aircraft storage and servicing areas, heaters shall be installed at least 10' (3 m) above the upper surface of wings or of engine enclosures of the highest aircraft which may be housed in the hangar. The measurement shall be made from the wing or engine enclosure (whichever is higher from the floor) to the bottom of the heater. • In shops, offices and other sections of aircraft hangars communicating with aircraft storage or servicing areas, heaters shall be installed not less than 8' (2.4 m) above the floor. • Suspended or elevated heaters shall be so located in all spaces of aircraf...

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