3. SAFE INSTALLATION REQUIREMENTS NOTE: Units with available filter racks ( 3-1/2 to 5 ton), need a 26" minimum clearance at side of unit for removal of filters. See chart below if unit is going to be placed near combustible construction or materials. FIRE, EXPLOSION, ELECTRICAL...
Ground Level Installation 2. Install the removed plates on the horizontal return and supply air openings. Ground level platform requirements: 3, Install roof curb on the building. Be sure to follow all di- - The unit MUST be situated to provide safe access for rections included with curb and all applicable building servicing.
5. PRE-EXISTING COMMON VENT CHECK Gas Pipe Size, Length and Btu/hr Capacity FIGURE 5 for Schedule 40 Iron Pipe (English) If the installation of the combination unit involves removing NATURALGAS an existing furnace from a common vent with other appliances, the existing venting system will probably be too kW** Pipe Length (Includes...
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the gas supply connection to the furnace if none is sup- NOTE: For elevations above 2000 feet (610 meters), the plied with the gas valve of unit. Btu input rating MUST be reduced by 4% for each 1000 feet (305 meters) above sea level, unless the gas supplier's 8.
For access, remove burner access panel. FIGURE 7 I Manifold/Orifice Measurement FIGURE 1 for access panel location. Wiring MUST be protected from possible mechanical damage. Measure 13/16" from face of orifice Line Voltage Wiring to back edge of manifold pipe. Connections for line voltage are made in the unit control box area.
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CHECK BEFORE STARTING Combustion Blower Pipe Installation Remove the combustion blower pipe from the right corner of 1. Check that the blower motor speed terminal block is burner compartment and position the end of the pipe with running the correct heating and cooling speeds. the screw hole over the opening of the combustion blower.
HEATING START-UP PROCEDURE FIGURE 10 Gas Pressures 1. Adjust thermostat setting above room temperature and set thermostat selector to HEAT. The combustion air Natural Gas LP Gas blower should come ON. 2. The ignitor should begin to glow and pilot flame should Minimum 4.5"W.C.
Pilot and main burners and combustion air blower to the insulated male terminal on the black cooling lead. should go OFF Then place the insulated black female quick connect to the required speed tap. The circulating air blower should continue to run for 60, 100,140 or 180 seconds.
FIGURE 13 Blower Motor Speed Taps (3-Speed and 4-Speed Motors) YELLO_L SPEED DATA IN UNITS TECHNICAL INFORMATION LABEL I BE SURE TO CHECK BLOWER MOTOR I ON THE UNIT 10. OPERATION Once the thermostat is satisfied, the fan control will operate the blower for 30 additional seconds.
VENT ASSEMBLY should glow orange (after about five minutes of operation). Main burner flame should be inspected monthly. FIGURE 14 Normal Flame BURN HAZARD. Failure to follow this warning could result in property damage or personal injury. Flue cover may be hot! Allow adequate time for flue cover to Flame should be cool stable and solid...
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Circulating Air Blower 1. Disconnect electrical power to unit. 2. Turn OFF gas at manual shut off valve. Visually inspect the blower wheel for accumulations of dirt or lint. Clean the compartment and the blower wheel. If 3. Remove burner access panel. accumulation is excessive on blower wheel, or does not 4.
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FIGURE 16 Access to Burners Flame Shield I Ro!!out Switch I Manifold Pilot Assy, (Hidden) I I Gas Valve Pressure Switch I Fan Timer Board Collector Box I Ground Lug I 80-31-31 I Pilot Assembly...
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R GGING NSTRUCT rs,_uRE Toro._owT_SE ,.STROCT,O_S WA_L[/0 c_ RESo_I ._PROPERTY' D_G_-. - ALL PANELS MUST IN PLACE WHEN RIGGING LIFTING. - HOOK RIGGING SHACKLES THROUGH HOLES IN BASE RAIL, SHOWN IN DETAIL-A. - USE SPREADER BARS, WHEN RIGGING, PREVENT UNIT DAMAGE.