Lennox 15GCSX - Manuals

Lennox 15GCSX – Manual in PDF format online.

Manuals:

Manual

Manual Lennox 15GCSX

Summary

Page 3 - − Assembled gas package unit; General; CAUTION

Page 3 Parts Arrangement PureAir ® Air Purification System (Optional) Control Box Gas Valve Ignition Control Board Condenser Coil Evaporator Coil Shipping & Packing List 1 − Assembled gas package unit 1 − Vent hood assembly with screen and screws As soon as the unit is received, it should be ins...

Page 4 - WARNING; Product contains fiberglass wool.; Location Selection

Page 4 WARNING Product contains fiberglass wool. Disturbing the insulation in this product duringinstallation, maintenance, or repair will expose youto fiberglass wool dust. Breathing this may causelung cancer. (Fiberglass wool is known to the Stateof California to cause cancer.) Fiberglass wool may...

Page 5 - − Do not locate the unit where the combustion air supply; Rigging & Setting Unit; The; Figure 1; NOTE − Length of forks must be a minimum of 42 inches.; Clearances; Figure 2

Page 5 5 − Do not locate the unit where the combustion air supply will be exposed to any corrosive substance, includingthe following:Permanent wave solutions,Chlorinated waxes or cleaners,Chlorine−based swimming pool chemicals,Water−softening chemicals,De−icing salts or chemicals,Carbon tetrachlorid...

Page 6 - Figure 3; Minimum Clearances to Combustible Materials; Vent Hood Installation; The vent hood must be installed prior to unit start−up.; Existing Common Vent Systems

Page 6 freeze on the walls or on overhangs (under eaves). Thevent outlet should not discharge flue products on asidewalk, patio or other walkway where the condensatecould cause the surface to become slippery. Do not install the unit so that the products ofcombustion will be allowed to accumulate wit...

Page 8 - Condensate Drain; Figure 5; Typical Condensate Drain; Filters

Page 8 Condensate Drain The 15GCSX unit is equipped with a 3/4 inch FPT couplingfor condensate line connection. Plumbing must conform tolocal codes. Use a sealing compound on male pipethreads.The drain line must be properly trapped and routed to asuitable drain. See figure 5 for proper drain arrange...

Page 9 - The Healthy Climate; Supply & Return Duct Connections; air purification system (PCO20−28) is being; Figure 6

Page 9 Table 1 Unit Filter Size Unit Model Filter Size Filter Quantity −24, −30, −36 20 in. X 25 in. 1 −42, −48, −60 16 in. X 25 in. 2 The Healthy Climate ® PureAir ® air purification system (PCO20−28) may be used with 15GCSX units installed inhorizontal air discharge applications only. Installation...

Page 10 - Compressors; Do not loosen compressor mounting bolts.; Gas Supply and Piping

Page 10 Compressors Units are shipped with the compressor mountingsfactory−adjusted and ready for operation. CAUTION Do not loosen compressor mounting bolts. Gas Supply and Piping Check the unit rating plate to confirm whether unit isequipped for use with natural gas or LP/propane. Ifconversion is r...

Page 11 - Gas piping recommendations:; IMPORTANT

Page 11 Figure 8 unit ground joint union field provided 1/8 in. pressure tap manual main shut−off valve drip leg gas piping support Drip Leg Installation Pressure Test Gas Piping When pressure testing gas lines, the gas valve must bedisconnected and isolated. Gas valve can be damaged ifsubjected to ...

Page 12 - Electrical; Use wiring with a temperature limitation of 75; Thermostat

Page 12 Electrical All wiring should be done in accordance with thecurrent National Electric Code ANSI/NFPA No. 70 in theUnited States. In Canada, wiring must be done inaccordance with the current CSA C22.2 Part 1. Localcodes may take precedence. Use wiring with a temperature limitation of 75 _ C mi...

Page 14 - ADJUST

Page 14 Blower Control (A54) BLOWER CONTROL (A54) 16−PIN PLUG (BOARD TO MOTOR) ADJUST SELECTOR PINS (Setting affects both heating and cooling modes) DIAGNOSTIC LED HEATING SPEED SELECTOR PINS COOLING SPEED SELECTOR PINS Figure 12 Electric shock hazard. Can cause injury ordeath. Before attempting to ...

Page 15 - COOL; HEAT; CONTINUOUS FAN

Page 15 COOL The COOL jumper is used to determine the CFM during cooling operation. This jumper selection is activated forcooling when Y1 is energized. The blower motor runs at 80 percent of the selected airflow for the first 7−1/2 minutes of each cooling demand.This feature allows for greater humid...

Page 16 - Cooling Start−Up

Page 16 Cooling Start−Up The cooling section is a complete factory package utilizingan air−cooled condenser. The system is factory−chargedwith HFC−410A refrigerant. The compressor ishermetically sealed, internally sprung and base−mountedwith rubber−insolated hold−down bolts. Pre−Start Check List: 1 ...

Page 17 - Heating Start−Up; Pre−Start Check List:; Honeywell VR8205 Series Gas Valve

Page 17 Table 8 Normal Operating Pressures 80  F db / 67  F wb RETURN AIR Air Temperature Entering Outdoor Coil (  F) UNIT PRESSURE 65 70 75 80 82 85 90 95 100 105 110 115 15GCSX−24 Suction 142 143 144 146 146 147 148 149 150 151 152 153 15GCSX−30 134 136 138 140 141 142 144 146 148 149 151 152 1...

Page 18 - Checking and Adjusting Gas Input; Conversion; High Altitude Information

Page 18 To Shut Down: 1 − Turn off electric power to unit. 2 − Turn the gas valve knob to the OFF position. Post Start−up Check List (Gas) After the control circuit has been energized and the heatingsection is operating, make the following checks: 1 − Use soap solution to check for gas leaks in the ...

Page 19 - Blower Delay − Heating; In the heating mode, the circulating air blower operation is; Unit Controls

Page 19 circulating blower remain energized. If the thermostatsignals a requirement for second−stage heat (W2), theignition control initiates high heat operation.When a signal for second stage heat is received by theignition control, the control energizes the second−stagegas valve and high−speed com...

Page 21 - Voltage within the range of; Table 9; Condenser Fan Clearances

Page 21 System Operation Monitor (LSOM) The system operation monitor (A132) detects the mostcommon fault conditions in the air conditioning system.When an abnormal condition is detected, the modulecommunicates the specific condition through its ALERTand TRIP lights. The module is capable of detectin...

Page 22 - System Operation Monitor LED Troubleshooting Codes; Status LED Condition

Page 22 Table 10 System Operation Monitor LED Troubleshooting Codes Status LED Condition Status LED Description Status LED Troubleshooting Information Green Power" LED ON Module has power 24VAC control power is present at the module terminal. Green Power" LED OFF Module not powering up Deter...

Page 23 - Maintenance; Use a soft brush or vacuum to clean the affected areas.; Planned Service; Blower access door must be properly in place.

Page 23 System Operation Monitor LED Troubleshooting Codes Status LED Condition Status LED Troubleshooting Information Status LED Description *Flash code number corresponds to a number of LED flashes, followed by a pause, and then repeated. Reset ALERT flash codeby removing 24VAC power from monitor;...

Page 24 - Repair Parts & Accessories

Page 24 Repair Parts & Accessories The following repair parts are available from your local dealer. When ordering parts, include the complete model numberand serial number which are printed on the unit rating plate. All service must be performed by a licensed professionalinstaller (or equivalent...