Instruction/ maintenance manual of the product EL180UHE Lennox International Inc.
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Page 1 01/13 *2P0113* 507138-01 *P507138-01* 2013 Lennox Industries Inc. Dallas, T exas, USA UPFLOW HORIZONT AL LEFT HORIZONT AL RIGHT AIR FLOW AIR FLOW AIR FLOW INST ALLA TION INSTRUCTIONS EL180U.
Page 2 Unit Dimensions - inches (mm) AIR FLOW 23 (584) (19) 3/4 (19) 1 Bottom Return Air Opening GAS PIPING INLET (Either Side) Side Return Air Opening (Either Side) 1 Bottom Return Air Opening FLUE O.
Page 3 EL180UHE Gas Furnace The E L180UHE unit is s hipped ready f or installation i n the upflow o r horizontal right position ( for horizontal left p osi tion the combustion air pressure switch must be moved) fueled b y n atural gas. A conversion kit ( ordered separate ly) i s required for u se i n L P/Propane gas applications.
Page 4 Installed in Combination with a Cooling Coil When this furnace is used with cooling units, it shall be installed in p arallel with, or on the upstream s ide of, cooling units to avoid condensation in the heating compartment.
Page 5 Do not install the furnace where drafts might blow direct ly into it. This could cause improper combustion and un safe operation. Do not block the furnace combustion air openings with clothing, boxes, doors, etc. Air is needed for proper combustion and safe unit operation.
Page 6 separated b y a door . Though an area may appear to be un confined, it might be necessary to bring in outdoor air for combustion if t he str ucture does not provide enough air by infiltration.
Page 7 EQUIPMENT IN CONFINED SP ACE ALL AIR FROM OUTSIDE (Inlet Air from Crawlspace and Outlet Air to V entilated Attic) NOTE-The inlet and outlet air openings shall each have a free area of at least one square inch (645 mm 2 ) per 4,000 Btu (1.17 kW) per hour of the total input rating of all equipment in the enclosure.
Page 8 Setting Equipment W ARNING Do not install the furnace on its front or its back. Do no t connect the return air ducts to the back of the fur nace. Doing so w ill adversely affect the operation of the safety control devices, which could result in per sonal injury or death.
Page 9 Return Air -- Upflow Applications Return air can be brought in t hrough the bottom or either side o f the furnace i nstalled i n a n u pflow a pplication.
Page 10 Removing the Bottom Panel Remov e the two screws that secure the bottom cap to the furnace. Pivot the bottom cap down to release the bottom panel.
Page 1 1 CAUTION If this unit is being installed in a space serviced by an exhaust fan, power exhaust fan, or other device which may create a negative pressure in the space, take care when sizing the inlet air opening.
Page 12 Return Air Plenum NOTE - Return air must not be drawn from a room where this furnace, or any other gas-fueled appliance (i.e., water heater), or carbon monoxide producing de vice (i.e., wood fireplace) is installed. When return air is drawn from a room, a negative pres sure i s c reated i n t he r oom.
Page 13 UPFLOW POSITION Left Side V ent Discharge FIGURE 16 Gas supply piping must be brought into the unit from the right side in order to accommodate the flue pipe.
Page 14 HORIZONT AL RIGHT POSITION T op V ent Discharge FIGURE 20 Remove make-up box assembly (2 screws) and cut wire tie to free make-up box wires.
Page 15 FLUE TRANSITION COLLAR VENT PIPE (min. 6” length) “DISCONNECTED VENT” WARNING STICKER FIGURE 22 FLUE TRANSITION COLLAR VENT CONNECTION UPFLOW AND HORIZONT AL POSITION VENT PIPE (min. 6” length) “DISCONNECTED VENT” WARNING STICKER FIGURE 23 Common V enting Using Metal-Lined Masonry Chimney 4 in.
Page 16 A type B or listed chimney lining system that passes through an unused masonry chimney flue is not considered to be exposed to the outdoors. General V enting Requirements V ent all EL180UHE fu.
Page 17 9 - If the common vertical vent is of fset, the maximum common vent capacity listed in the common venting tables should be reduced by 20%, the equivalent of two 90° elbows (0.80 x maximum common vent capacity). The horizontal length of the offset shall not exceed 1‐1/2 feet (.
Page 18 T ABLE 3 Capacity of T ype B Double-W all V ents with T ype B Double-Wall Connectors Serving a Single Category I Appliance Height H (feet) Lateral L (feet) V ent and Connector Diameter - D (in.
Page 19 T ABLE 4 V ent Connector Capacity T ype B Double-W all V ents with T ype B Double-Wall Connectors Serving T wo or More Category I Appliances V ent Height H (feet) Connector Rise R (feet) V ent.
Page 20 Removal of the Furnace from Common V ent In the event that an existing furnace is removed from a venting system commonly run with separate gas ap pliances, the venting system is likely to be too large to properly vent the remaining attached appliances.
Page 21 T ABLE 6 Gas Pipe Capacity - ft 3 /hr (m 3 /hr) Nominal Iron Pipe Size inches (mm) Internal Diameter inches (mm) Length of Pipe - feet (m) 10 (3.048) 20 (6.096) 30 (9.144) 40 (12.192) 50 (15.240) 60 (18.288) 70 (21.336) 80 (24.384) 90 (27.432) 100 (30.
Page 22 GROUND JOINT UNION DRIP LEG MANUAL MAIN SHUT-OFF VA LV E GROUND JOINT UNION DRIP LEG MANUAL MAIN SHUT-OFF VA LV E GROUND JOINT UNION DRIP LEG MANUAL MAIN SHUT-OFF VA LV E Horizontal Applicatio.
Page 23 INTERIOR MAKE-UP BOX INST ALLA TION FIGURE 28 BOX Right Side Refer to figure 2 9 for schematic wiring diagram, field wiring and trouble shooting. The power supply wiring must meet Class I restrictions. Protected by either a fuse or circuit breaker , select circuit protection and wire size according to unit nameplate.
Page 24 FIGURE 2 9 EL180UHE Schematic Wiring Diagram.
Page 25 Integrated Control RED LED Flash Code Diagnostic Codes / Status of Furnace Off No power to control or board fault detected On Board fault detected, Heartbeat 1 Control powered - displayed duri.
Page 26 Unit Start-Up FOR YOUR SAFETY READ BEFORE LIGHTING W ARNING Do not use this furnace if any part has been under water . A flood-damaged furnace is extremely dan gerous.
Page 27 1 1 - Are flame rollout switches tripped? If flame rollout switches are tripped, call the service technician for in spection. Heating Sequence Of Operation (follow steps below or see Figure 29 for more detail) 1 - Whe n thermostat calls for heat, combustion air blower starts.
Page 28 T ABLE 10 Manifold Pressure Settings at all Altitudes Model Input Size Gas 0-2000 ft 2001-4500 ft. 4501-7500 ft 7501 - 10,000 ft Line Pressure in.wg. Min Max 045 Nat 3.5 3.2 3.0 3.5 4.5 13.0 LP/propane 10.0 10.0 10.0 10.0 1 1.0 13.0 070 Nat 3.
Page 29 HEA T F AN‐OFF TIME IN SECONDS T o adjust fan-off timing, reposition jumper across pins to achieve desired setting. NO JUMPER FIGURE 32 60 90 120 180 60 90 120 180 60 90 120 180 60 90 120 18.
Page 30 2 - Label the wires from gas valve, rollout switches, prima ry limit switch and make-up box then disconnect them. 3 - Disconnect gas supply piping.
Page 31 Start-Up & Performance Check List Unit Model Number_______________ Serial Number___________________ UNIT SET UP (typical) Gas Supply Pressure 1 2 2 1 SUPPL Y AIR Line V oltage 3 4 5 Filter RETURN AIR RETURN AIR GAS SUPPL Y Natural Gas LP/Propane Gas Piping Connections Tight Leak T ested Supply Line Pressure “ W .
Page 32 Contractor's: Name_________________________T elephone_____________Checklist Completed____________________ Job Address_____-________________________________T echnician's Name___________________________________ UNIT OPERA TION (typical) 1 HEA TING MODE GAS MANIFOLD PRESSURE “W .
An important point after buying a device Lennox International Inc. EL180UHE (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Lennox International Inc. EL180UHE yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Lennox International Inc. EL180UHE - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Lennox International Inc. EL180UHE you will learn all the available features of the product, as well as information on its operation. The information that you get Lennox International Inc. EL180UHE will certainly help you make a decision on the purchase.
If you already are a holder of Lennox International Inc. EL180UHE, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Lennox International Inc. EL180UHE.
However, one of the most important roles played by the user manual is to help in solving problems with Lennox International Inc. EL180UHE. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Lennox International Inc. EL180UHE along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
