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Фрагмент инструкции
Adequate clearances for air openings into the combustion chamber must be provided. Make sure there is an adequate supply of make-up air in the room to allow for combustion of the gas at the burner(s). Keep the appliance area free and clear from all combustible substances. Do not obstruct the flow of combustion and ventilation air. The dishwasher must have a minimum clearance from combustible construction of 1 inch from the flue at the rear and 0 inches at the sides. A clearance of 40 inches must be provided at the front of the dishwasher for servicing and proper operation. The burner is ignited automatically by solid state electronic circuitry; there is no pilot light. Gas flow is regulated by the temperature control circuit. VENTING REQUIREMENTS — WITH GAS TANK HEAT The Hobart AM14 / AM14C dishwasher equipped for gas tank heat is not provided with a flue collar and is not intended to have the flue directly connected to a ventilation system. However, the products of combustion must be vented to the outside air. The most common method of venting is a vent hood over the entire dishwasher (Fig. 4). Refer to Rate of Exhaust Flow Calculations on the next page for calculations of the proper vent rate for your hood. Another method is a small vent hood (Fig. 5) positioned about five inches above the flue exit at the rear of the dishwasher and connected to existing ductwork. In either case, an electrical interlock must be provided to allow the flow of gas to the dishwasher burner ONLY when the exhaust system is energized. For additional information, refer to the National Fuel Gas Code, ANSI Z223.1, NFPA 54. • IMPORTANT: Make sure the installation meets the local code for your area. 31/2" 6" .. .. . . 4" .3" x 3" DUCT INTO CURRENT SYSTEM . 5" GAP MINIMUM . .MINI VENT HOOD DISHWASHER FLUE EXIT . .. 6" MINIMUM OVERHANG ON ALL SIDES . . 1' TO 4' CLEARANCE . . 18" OVERHANG RECOMMENDED OVER LOADING OR UNLOADING DOORS Fig. 4 Fig. 5 – 8 – NOTE: Any listed and labeled factory-built commercial exhaust hood tested in accordance with UL Standard 710 by a nationally recognized testing laboratory, should be installed according to the terms of its listing and the manufacturer's installation instructions. HEIGHT RATE OF EXHAUST FLOW CALCULATIONS Based on the 1996 International Mechanical Code. The Rate of air flow required for a vent hood is calculated using the following definitions (Fig. 6): Q = Rate of Air Flow in Cubic Feet Per Minute or [ CFM ] Required for the Hood. A = Area of Hood Opening in Feet2 = (L x W) D = Clearance Height = Distance in Feet from lower lip of hood to top of dishwasher chamber. P = Perimeter of Hood that is Open. This depends on the hood design, as follows: Perimeter Calculation Formula ..LENGTH . .CLEARANCE .WIDTH Fig. 6 . Hood Design Corner Wall Island Number of Open Sides 2 Sides Open 3 Sides Open 4 Sides Open P = L + W L + W + W L + L + W + W Dimensions Feet Feet Feet If there are four open sides (Island Design), the calculation of the Rate is as follows: Q = 75 x A If there are three or fewer open sides, the calculation of the Rate is as follows: Q = 50 x A As an alternate method, the Rate can be calculated as follows: Q = 50 x P x D Example: L = 3 W = 3 D = 2 Rate Calculations Hood Design Corner Wall Island Number of Open Sides 2 Sides Open 3 Sides Open 4 Sides Open Q = 75 x A 675 CFM Q = 50 x A 450 CFM 450 CFM Q = 50 x P x D 600 CFM 900 CFM 1200 CFM – 9 – ELECTRICAL CONNECTIONS WARNING: ELECTRICAL AND GROUNDING CONNECTIONS MUST COMPLY WITH THE APPLICABLE PORTIONS OF THE NATIONAL ELECTRICAL CODE AND/OR OTHER LOCAL ELECTRICAL CODES. WARNING: DISCONNECT ELECTRICAL POWER SUPPLY AND PLACE A TAG AT THE DISCONNECT SWITCH TO INDICATE THAT YOU ARE WORKING ON THE CIRCUIT. Dishwasher Refer to the wiring diagram attached inside the control box and to the machine data plate for service size requirements when connecting the dishwasher. Also, refer to Electrical Data, page 12. The dishwasher electrical service connection can be made through the 11/8" diameter hole for 3/4 inch trade size conduit located at the bottom of the right side of the control box. By removing a knockout, this hole can be enlarged to 13/4" diameter for 1 inch trade size conduit. A fused disconnect switch or circuit breaker (not supplied) must be installed in the electrical service line supplying this dishwasher and should meet the requirements of your local electrical code. All power supply connections are made at the terminal block 1TB in the control box. The machine must be grounded according to electrical code(s); a grounding lug is provided in the control box. Check Rotation (Three-Phase Machines Only) Three-phase motors must rotate in the direction of the arrow on the pump housing. In order to check rotation, observe the motor fan through the end bell. Close the machine doors and press the power switch to ON. When the machine is completely filled, place the cycle switch (located on the side of the control box) on MANUAL and place the...
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