LENNOX Furnace/Heater, Gas Manual L0806891
User Manual: LENNOX LENNOX Furnace/Heater, Gas Manual LENNOX Furnace/Heater, Gas Owner's Manual, LENNOX Furnace/Heater, Gas installation guides
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GAS UNITS KITS AND ACCESSORIES ©1997 Lennox industries Technical i_blc=10.s LithoU,S.A, FURNACE TRANSITION 503,772M 10/97 inc. _ j KIT Datlas, Texas INSTALLATION INSTRUCTIONS FOR FURNACE TRANSITION KIT CAT# 16L42 (LB-93419A), AND CAT# 16L43 (LB-93420A) USED WHEN CONVERTING FROM GSR14 UNITS TO GHR26 UNITS (DOWNFLOW) Refer to figure 1 for typical GSR14 installation. Package 1 of 1 contains: 1- Supply airtransition 1 - Set the thermostat to the lowest setting. 2 - Disconnect electrical power to GSR14 unit. 1- Return air transition 3- Shut off gas to GSR14 unit. 8- Insulation pins 4- 8- Insulation washers In applications without air conditioning disconnect supply air plenum. In applications with air conditioning disconnect coil cabinet, 1- Roll of adhesive-backed 5/16" wide) foam tape (1/8" thick x 5 - Disconnect 7 - Cut combustion air intake pipe and exhaust pipe in location(s) which will allow convenient reconnection of pipes to GHR26 unit, and/or removal of muffler(s) (if installed), Remove muffler(s) (if installed). Support intake and exhaust pipes to prevent damage to pipe joints. Check all components for shipping damage. Consult last carrier immediately if damage is found. 8- Table 1 shows furnace transition kit usage. These kits are used when replacing an existing GSR14 downflow furnace with a GHR26 downflow furnace, It allows installation of the GHR26 furnace without modification plenums. of the existing return air plenum. 6 - Remove control access panel, supply and return air 9 - Disconnect gas line at unit. 10 -Disconnect power wiring 11 -Disconnect low voltage wiring 12 -Remove blower at unit. at unit. access panel. 13 -Remove filter from inside of unit (if present) and disconnect return air plenum at unit. Note - Existing GSR14Q4/5-80/lO0 used in GHR26Q4/5-100 units. Note - GHR26 units are not certified for installation in mobile homes. Cut heat exchanger condensate drain line in a location which will allow convenient reconnection with GHR26 unit. 14 -Remove filter can be GSR14 unit. TABLE 1 GSR14 CABINET WIDTH inches (mm) GHR26 CABINET WIDTH inches (mm) KIT CAT# (LB#) Q3-50 21-1/4 (540) Q2/3-50 16-1/4 (413) 16L43 (LB-93420A) Q3-80 2t-1/4 (540) Q3-75 t6-1/4 (413) 16L43 (LB-93420A) Q4/5-80 21-1/4 (540) Q4/5-100 21-1/4 (540) 16L42 (LB-93419A) Q4/5-t00 21-1/4 (540) Q4/5-100 21-1/4 (540) 16L42 (LB-93419A) Note - There is no direct replacement for GSR14Q4-50 Page 1 unit with a GHR26 unit. TYPICAL GSR14 DOWNFLOW INSTALLATION CLOSET AIR PLENUM EXHAUST PIPE GAS SUPPLY PIPING INTAKE PIPE MANUAL SHUT-OFF VALVE _ BLOWER ACCESS PANEL _ CONDENSATE TRAP DRIP LEG DRIP LEG GAS CONNECTOR CONTROL ACCESS PANEL ISOLATION PADS (ISOMODE) (4', COOLING COIL CABINET CONDENSATE DRAIN FLOOR FIGURE 1 Page 2 C - Unit Installation Note - Installation must conform instructions and the installation with these instructions 2- packaged with the GHR26 furnace. A - Return Air Transition installation. Refer to figure 2. 1- Lay GHR26 unit on its back (exposed parts facing up). internal 3- If required, internally insulate transition with foil-faced insulation (field provided) and fasten with kit provided insulation pins and washers. 4 - Install transition as shown. 5-Install filter as shown in GHR26 installation instructions. GHR26Q4!5-100 unit will accept installation of GSR14Q4/5-80/100 unit filter, GHR26-50 and -75 units require a field provided 14x25x1 filter, B - Supply Air Transition Installation. Refer to figure 2. as outlined in in 4-Connect gas piping as outlined in GHR26 installation instructions. Consult local codes for flexible connector installation restrictions on GHR26 furnace. 5- Connect venting as installation instructions, Note - Mufflers outlined in GHR26 can not be used in GHR26 installation. Check existing venting for (diameter and length). It should meet size the specifications as outlined in GHR26 installation instructions. If a concentric vent is used for GHR26-100 unit, it must be identified number 33Kg7. as catalog 6 - Connect heat exchanger condensate drain line as outlined in GHR26 unit installation instructions. Note - Coil drain line must not be connected to 1 - Cut four strips from rollofadhesive-backed foam tape (provided) and fit to supply air transition flanges. Apply to flanges. If required, internally insulate transition with foil-faced insulation (field provided) and fasten with kit provided insulation pins and washers. 3 - Install transition Connect low voltage wiring as illustrated GHR26 installation instructions, 3-Connect high voltage wiring GHR26 installation instructions. 2 - Cut four strips from rollofadhesive-backed foam tape (provided) and fit to return air transition flanges. Apply to flanges. 2- 1 - Align unit with existing supply air plenum (coil cabinet in air conditioning applications) and return air plenum. Make connections to unit. as shown. heat exchanger condensate drain line. If lines were connected, debris from evaporator could affect heat exchanger operation. 7 - Continue with Unit Start-up Section as outlined in GHR26 installation instructions. Note - See GHR26 installation anticipation Page 3 settings, instructions for heat TYPICAL GHR26 DOWNFLOW INSTALLATION RETURN PLENUM INSTALLATION - SECURING SCREWS. _, RETURN AIRTRANSITION (Identify transition by its two sided taper.) 1 - Install foam tape as shown. 2 - Position plenum as shown in main figure and front and side views, 3 - Secure two sides and back by bending unit flanges as shown in detail A and!or by installing screws on these three sides. ADHESIVEBACKED FOAM TAPE f _ TRANSITION _i'\/ FLANGE UNIT FLANGE i!F_!t_!!!ii!fi ADHESIVEBACKED FOAM TAPE 4_ . i UNIT DETAIL A SECURING OF TRANSITIONS ,J ee instructions in this figure for each transition) Z ADHESIVEBACKED FOAM TAPE SUPPLY AIR TRANSITION \ SECURING SCREWS ------...._ FRONTVIEW SUPPLY PLENUM INSTALLATION (Identify transition by its three-sided taper.) 1 - Install foam tape as shown. 2 - Position plenum as shown in main figure and front and side views. 3 - Secure with field provided screws as shown (two each side). (Bend unit flanges over for additional air sealing, if desired, See detail A.) FIGURE 2 Page 4 RIGHT SIDE VIEW
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