Lennox International Inc. TUA100S User Manual Page 1

© 2003 Litho U.S.A. Lennox Industries Inc. Dallas, Texas, USA INSTALLATION INSTRUCTIONS TUA*S(N,L)(A,S)F *045, 060, 075, 100, and 125 T-CLASSTM S

Page 9 TABLE 3 VERTICAL VENT REQUIREMENTS FLUE TYPE MODEL INSTALLATION AIR INLET TYPE FLUE DIA. AIR INLET DIA. VENT CAP OTHER SINGLE WALL 45 COMME

Page 10 F-Horizontal Venting-Residential Two Pipes 1-For horizontal residential installations these units are certified as Category I appliances. Th

Page 11 G-Horizontal Venting Concentric Kit - Residential 1-For horizontal residential installations the 45/60/75 units are certified as Category I

Page 12 6- After it has been determined that each appliance remaining connected to the common venting system properly vents when tested as outlined

Page 13 Gas Connection When connecting gas supply, the length of the run from the meter must be considered in determining the pipe size. A li

Page14 START-UP AND OPERATION Unit Start-Up FOR YOUR SAFETY READ BEFORE LIGHTING Electric shock hazard. Can cause injuryor death. Do not use this h

Page 15 Gas Valve Operation for White Rodgers 36E Series Valve (Figure 12) 1- STOP! Read the safety information at the beginning of this section. 2-

Page 16 To Turn Off Gas To Unit 1- Set thermostat to lowest level. 2- Turn off all electrical power to unit if service is to be performed. 3-

Page 17 ADJUSTMENTS High Altitude Units may be fired at full input up to 2000 ft. (610m) above sea level. Above 2000 ft. (610m), manifold pressure

Page 18 TABLE 7 LP/PROPANE GAS MANIFOLD PRESSURES - in.wg. (kPa ) ALTITUDE FT. (M)MODEL 0-2000 (0-610) 2001-3000 (610-914) 3001-4000 (915-1219) 40

Page 1 START-UP AND PERFORMANCE CHECK LIST Job Name:___________________ Job No.:_______________________ Date:_________________________ Job Location

Page 19 SERVICE CAUTION - Turn off gas and electrical power to unit before performing any maintenance or service operations on this unit. Remember to

Page 20 MAXIMUM LOAD NOT TO EXCEED 20 VA AT 24 V CLASS 2. (2)S47 USED ON 60 & 75 MODELS ONLY. DISCONNE

Page 2 TABLE 1 UNIT CLEARANCES Top Sides Access Panel Bottom Rear Single Wall Vent*

Page 3 Shipping The heater is completely assembled. Two mounting brackets are included with the 45, 60, and 75 size units. Check the unit for ship

Page 4 . Unit Heater Installation 45, 60, and 75 size units may be installed in the normal position or inverted 180° as s

Page 5 A-General Recommendations and Requirements NOTE - The vent is a passageway, vertical or nearly so, used to convey flue gases from an appli

Page 6 FIGURE 2VENT AND AIR INTAKE TERMINATION ON SINGLE WALL VENT SINGLE WALL TERMINATION DOUBLE WALL (TYPE B-1) TERMINATION ROOF FLASHING ROO

Page 7 3- The air inlet diameter shall be 3” (76mm) on 45/60/75 units and 4” (100mm) on 100/125 units. Refer to table 4 for diameter and termination

Page 8 FIGURE 4 CONDENSATE DRAIN THROUGH TEE PIPE AND DRAIN LOOPDRAIN LOOP WITH WATER TRAP (TO CONDENSATE DRAIN) GROUND LEVELNOTE - MINIMUM HORIZ