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Фрагмент инструкции
The gas supply to the infra-red heater must be connected and tested in accordance with national, state, provincial and local codes along with the guidelines in this manual. Refer to the latest edition of the ANSI Z223.1 (NFPA 54) Standard. Important! Before connecting the gas supply to the infra-red heater(s): • Check for conditions such as drafts or other variables which might cause excessive movement of the unit and cause damage to the gas connection. Ensure that the unit is securely mounted and connect the gas with an approved connection device suitable for the environment of use. Chart 2.2 -Manifold Pressure • Check that the gas piping and service has the capacity to handle the load of all heaters being installed, as well as any other gas appliances being connected to the supply line. • Check that the main gas supply line is of proper diameter to supply the required fuel pressures. • If utilizing used pipe, verify that its condition is clean and comparable to a new pipe. Test all gas supply lines in accordance with local codes. • Test and confirm that inlet pressures are correct. Refer to the rating plate for required minimum and maximum pressures (see Chart 2.2). The gas supply pipe must be of sufficient size to provide the required capacity and inlet pressure to the heater (if necessary, consult the local gas company). • For test pressures in excess of 1/2 psig (3.5 kPa), the heater and ball shutoff valve must be disconnected from the gas supply piping system during any pressure testing of the system. • For test pressures equal to or less than 1/2 psig (3.5 kPa), the heater must be isolated from the gas supply piping system by closing it’s individual manual shutoff valve during any pressure testing of the gas supply piping system. Type of Required Manifold Minimum Inlet Maximum Inlet Gas Pressure Pressure Pressure Natural 5.0 in. W.C.P. 6.0 in. W.C.P. 14.0 in. W.C.P. Liquefied Petroleum 10.0 in. W.C.P. 11.0 in. W.C.P. 14.0 in. W.C.P. Note: Check manifold pressure at the tap on the ball shutoff valve. Readings will be above atmospheric pressure during operation. Pressure Equivalents: 1 in. W.C.P. equals .058 oz./sq. in. equals 2.49 Mbar. 13 ® !! Dayton Installation, Operation, Maintenance and Parts Manual 1RVT7 and 1RVT8 ® Dayton Patio Heaters To connect the gas: WARNING ! Failure to install, operate or service this appliance in the approved manner may result in property damage, injury or death. This heater must be installed and serviced by trained gas installations and service personnel only. The installation of this heater must conform with local building codes or, in the absence of such codes, the National Fuel Code (NFPA 54). The gas outlet must be in the same room as the appliance and accessible. It may not be concealed within or run through any wall, floor or partition. 1. Install a sediment trap / drip leg if condensation may occur at any point of the gas supply line. This will decrease the possibly of loose scale or dirt in the supply line entering the heater’s control system and causing a malfunction. NOTE: High pressure gas above 14 in. W.C.P. (water column pressure) requires a high pressure regulator and ball valve (field supplied). 2. A stainless steel flexible hose (field supplied) formed into a smooth C-shape is recommended. If local codes prohibit the use of a gas hose, then a swing joint may be used. 3. Attach the ball valve (field supplied) to the gas supply pipe. Apply pipe compound to NPT adapter threads to seal the joint. Use only a pipe compound resistant to liquid petroleum. Note: Provide a 1/8 in. NPT plugged tapping accessible for test gauge connection immediately upstream of gas connection to the heater (provided on ball valve, when supplied). 4. Attach the gas connector (field supplied) to the adapter and the heater’s gas inlet. Seal the joints. Important! The fittings (nuts) on the flexible !connector (field supplied) must be connected to an adapter. They may not be directly connected to the gas supply pipe. Excessive torque on the manifold may misalign the orifice. Always use two wrenches to tighten mating pipe connections. 5. Final assembly must be tested for gas leaks according to NFPA or local codes. WARNING ! Testing for gas leaks with an open flame or other sources of ignition may lead to a fire or explosion and cause serious injury or death. Test in accordance with NFPA or local codes. To disconnect the gas: 1. Disconnect the power to the heater. 2. Turn off the gas supply to the heater and “bleed” the gas line. 3. Using two wrenches, slowly loosen the fittings. Excessive torque on the manifold may misalign the orifice. 4. Inspect the hose and fittings for abrasion, wear or damage. Replace if necessary. 14 ® Dayton Installation, Operation, Maintenance and Parts Manual Models 1RVT7 and 1RVT8 15 WARNING ! ! Failure to disconnect the electricity to the heater before disconnecting the gas supply may result in explosion, fire, property damage, injury or death. Figure 2.8 - ...
Эта инструкция также подходит к моделям:Электрообогреватели - 1RVT8 (1.86 mb)