Boiler Manual - Weil-McLain

More documents

Recommendations

Info

GV90+ gas-fired water boiler — Boiler ManualDIRECT VENT — Sidewall with separate pipes (continued)For multiple boiler applications using the manifoldedcombustion air option, the vent can be terminated inan elbow as in Figure 47, page 39, or in a coupling orsidewall termination plate. The vents must be locatedfollowing the restrictions in Figure 41, page 35 andFigure 38, page 31.Figure 48 Multiple separate pipes sidewall terminationsPrepare wall penetrations1. Air pipe penetration:a. Cut a hole for the air pipe. Size the air pipe hole as close asdesired to the air pipe outside diameter.2. Vent pipe penetration:a. Cut a hole for the vent pipe. For either combustible or noncombustibleconstruction, size the vent pipe hole at least 0.4”larger than the vent pipe diameter:• 4” hole for 3” PVCb. Insert a galvanized metal thimble in the vent pipe hole asshown in Figure 49.3. Use a sidewall termination plate as a template for correct locationof hole centers. Sidewall termination plates are included with theWeil-McLain sidewall vent/air plate kit, shipped with each boiler.4. Follow all local codes for isolation of vent pipe when passingthrough floors or walls.5. Seal exterior openings thoroughly with exterior caulk.Termination and fittings1. Prepare the vent termination elbow and the air termination elbowby inserting bird screens. (See Figure 47, page 39.) Bird screensmust be purchased separately. See the parts list at the end of thismanual for part numbers.2. When completed, the air termination coupling must be orientedat least 12 inches below the vent termination and at least 12 inchesabove grade or snow line as shown in Figure 47, page 39.3. You can orient the vent termination elbow either directly outwardor 90 degrees away from the air inlet elbow as shown inFigure 47, page 39.4. Maintain the required dimensions of the finished terminationpiping as shown in Figure 47, page 39.5. For multiple boiler terminations, see Figure 48, page 40.6. Do not extend exposed vent pipe outside of building more thanshown in this document. Condensate could freeze and block ventpipe.If extending the vent and air pipes out from the wall,install a coupling on each pipe. Mount the piping withthe coupling flush with the outer plate.Figure 49 Sidewall termination assembly — usingseparate pipes1 Vent piping2 Air piping3 Sidewall termination plates, supplied withboiler in W-M vent/air plate kit4 Galvanized thimbles, by installer5 Bird screen, by installer6 Air inlet elbow7 Elbow8 Nipple9 Elbow (vent termination)40Part number 550-142-054/1211
GV90+ gas-fired water boiler — Boiler ManualDIRECT VENT — Sidewall with 3” concentricAllowable vent/air pipe materials &lengths1. The 3” concentric termination kit must be purchasedseparately.Use only the vent materials and kits listedin Figure 40, page 33. Provide pipe adaptersif specified.2. Locate the termination such that the total air pipingand vent piping from the boiler to the terminationwill not exceed the maximum length given inFigure 39, page 32.3. This termination requires a 45-degree elbow thatis not supplied with the termination kit. Themaximum vent/air pipe lengths include allowancefor this elbow.Figure 50 Installation sequence — Concentric horizontalDetermine termination location1. The concentric termination kit must be installedas shown in Figure 50, page 41.2. The termination must comply with clearances andlimitations shown in Figure 41, page 35.3. Locate the termination so it is not likely to be damagedby foreign objects, such as stones or balls, orsubject to buildup of leaves or sediment.Multiple vent/air terminations1. When terminating multiple GV90+ boilers, installeach concentric termination as described in thismanual.All vent pipes and air inlets must terminateat the same height to avoid possibilityof severe personal injury, death orsubstantial property damage.2. Place wall penetrations to obtain minimumclearance as shown in Figure 51, page 42 for U. S.installations. For Canadian installations, provideclearances required by CSA B149.1 or B149.2 InstallationCode.3. The air inlet of a GV90+ boiler is part of a directvent connection. It is not classified as a forced airintake with regard to spacing from adjacent boilervents.Step 1 Read and follow all instructions in this manual. DO NOTproceed with vent/air installation until you have readpage 29 through page 35.Step 2 Install the boiler in a location that allows proper routing ofall vent and air piping to the selected sidewall location.Step 3 Make sure the selected sidewall termination location complieswith Figure 41, page 35. (Multiple boiler concentricterminations must also comply with Figure 51, page 42.)Step 4 Use only the vent materials listed in Figure 40, page 33.Provide pipe adapters where required.Step 5 Vent piping and air piping lengths must not exceed thevalues shown in Figure 39, page 32.Step 6 The concentric termination must be assembled and installedbefore piping from the boiler to the termination.Step 7 Prepare the sidewall penetration — assemble the concentrictermination kit and secure the cover plates as instructed inthis section. Provide the supports indicated and mount thetermination assembly. See “Install termination — concentricpipes” on page 42.Step 8 Install vent and air piping between the boiler and theconcentric vent/air termination. Slope horizontal pipingdownward toward the boiler at least 1/4 inch per foot. Seepage 48 for general guidelines.Step 9 Install pipe supports every 5 feet on both the horizontal andvertical runs.Step 10 Install a hanger support within 6 inches of any upturn inthe piping.Part number 550-142-054/1211 41
Page 1 and 2: ®Gas-Fired Water BoilersBoiler Man
Page 3 and 4: GV90+ gas-fired water boiler — Bo
Page 17: GV90+ gas-fired water boiler — Bo
Page 91 and 92:
GV90+ gas-fired water boiler — Bo
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
Page 101 and 102:
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
show all

Boiler Manual - Weil-McLain

Create successful ePaper yourself

Delete template?

Save as template?