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Фрагмент инструкции
Do not permit overhanging structures or shrubs to obstruct condenser air discharge outlet, combustion air inlet, or vent outlet. Minimum Clearances to Combustibles Front of Unit 24” Back of Unit 2” Left Side 12” Right Side 15” (from Vent Cover) Below Unit * 0” * Minimum clearance to combustible material below the flue is 10" to allow proper dissipation of flue gasses and temperatures. Table 1 In the U.S., units may be installed on combustible floors made from wood or class A, B, or C roof covering material. In Canada, units may be installed on combustible floors. Units must be installed outdoors. Service Access Access to all serviceable components is provided by four removable panels: blower compartment, evoporator coil/filter compartment, burner compartment, and main control box. Combustion Discharge The vent outlet must be installed in a location as to prevent building degradation and must be consistent with the National Fuel Gas Code, Z223.1 or CAN/CGA-B149.1 & .2. The products of combustion are discharged through a screened opening on the gas heat side panel. The horizontal vent system shall terminate at least 4' below, 4' horizontally from, or 1' above any door, window, or gravity air inlet into the building. The vent system shall terminate at least 3' above any forced air inlet located within 10'. The unit shall be installed in a manner such that snow accumulation will not restrict the flow of flue products. 506271-01 Issue 0921 Page 3 of 14 Minimum horizontal clearance of 4' from electric meters, gas meters, regulator, and relief equipment is required. In addition to the above requirements, consideration must be given to prevent unwanted ice buildup from the vent condensate. The vent should not be located on the side of a building where the prevailing winter winds could trap the moisture, causing it to freeze on the walls or on overhangs (under eaves). The vent location should not discharge over a sidewalk, patio, or other walkway where the condensate could cause the surface to become slippery. The products of combustion must not be allowed to accumulate within a confined space and recirculate. Vent Cover For shipping purposes, the unit is shipped with the vent cover packaged in the unit supply air compartment. Retrieve the vent cover from the supply air compartment. To attach the vent cover to the unit: 1. Locate the vent screen. It is packed in the plastic bag that contains these Installation Instructions. 2. Remove the two screws that will be used to attach the screen to the unit (see Figure 2). 3. Center the screen over the hole and re-insert the screws removed in Step 2. 4. Remove the 4 screws that will be used to attach the vent cover (see Fig. 3). Install the vent cover using these screws. A properly installed vent cover will not extend above the top of the unit. Installing the Vent Cover Figure 2 Screen Screen attachment screws Vent Cover Vent Cover Attachment Screws (Plus 2 on other side) NOTE: If a gas furnace that’s connected to a common venting system is being removed when this package unit is installed, then read and follow the instructions in the “Removal of Unit from Common Venting System” section that follows. Otherwise, you may skip this section. Removal of Unit from Common Venting System When an existing furnace is removed from a common venting system serving other appliances, the venting system is likely to be too large to properly vent the remaining attached appliances. The following test should be conducted with each appliance while the other appliances connected to the common venting system are not in operation. 1. Seal any unused openings in the common venting system. 2. Visually inspect the venting system for proper size and horizontal pitch and determine there is no blockage or restriction, leakage, corrosion, or other deficiencies which could cause an unsafe condition. 3. Insofar as is practical, close all building doors and windows between the space in which the appliances remaining connected to the common venting system are located and other spaces in the building. Turn on clothes dryers and any appliance not connected to the common venting system. Turn on exhaust fans, such as range hoods and bathroom exhausts, so they will operate at maximum speed. Do not operate a summer exhaust fan. Close fireplace dampers. 4. Following the lighting instructions, place the unit being inspected in operation. Adjust the thermostat so the appliance will operate continuously. 5. Test for spillage at the draft control relief opening after 5 minutes of main burner operation. Use the flame of a match or candle. 6. Follow the preceding steps for each appliance connected to the common venting system. 7. After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined above, return doors, windows, exhaust fans, fireplace dampers, and any other fuel burning appliance to their previous condition of use. 8. If improper venting ...