Weil-McLain SlimFit Instruction Manual

is manual must only be used by a qualied heating installer/service technician. Read all instructions, including this manual and all other informati

Part number 550-100-116/071410SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualProvide air openings to roomAir openings — GeneralF

Part number 550-100-116/0714100SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualAnnual startup (continued)Inspect ignition electro

Part number 550-100-116/0714101SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualPerform startup procedure per manual1. Perform al

Part number 550-100-116/0714102SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manualis should allow for removal of the metal dish (it

Part number 550-100-116/0714103SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualBefore troubleshooting:1. See Figure101 for tool

Part number 550-100-116/0714104SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualTroubleshooting (continued)Check the following:1.

Part number 550-100-116/0714105SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualTroubleshooting (continued) Make sure to determin

Part number 550-100-116/0714106SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualTroubleshooting (continued)&IGURE Sola

Part number 550-100-116/0714107SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualTroubleshooting (continued)&IGURE Trouble

Part number 550-100-116/0714108SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDisplay Condition Diagnostics Corrective actionsIn

Part number 550-100-116/0714109SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDisplay Condition Diagnostics Corrective actionsLi

Part number 550-100-116/071411SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualPrepare boiler (continued) Cold weather handling 

Part number 550-100-116/0714110SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDisplay Condition Diagnostics Corrective actionsIL

Part number 550-100-116/0714111SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual3LIM&IT'AS"OILER$ATA#OLLECTION3

Part number 550-100-116/0714112SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualMaintenanceDisconnect power before servicing Elec

Part number 550-100-116/0714113SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualMaintenance (continued)&IGURE Using the c

Part number 550-100-116/0714114SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualMaintenance (continued)&IGURE Cleanout p

Part number 550-100-116/0714115SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualReplacement parts&IGURE Miscellaneous par

Part number 550-100-116/0714116SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualReplacement parts (continued)&IGURE Jack

Part number 550-100-116/0714117SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualReplacement parts (continued)&IGURE Jack

Part number 550-100-116/0714118SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Heat exchangerItem Description P

Part number 550-100-116/0714119SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Heat exchangerReplacement parts

Part number 550-100-116/071412SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualPrepare boiler (continued)Placing the boiler1. Rol

Part number 550-100-116/0714120SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Burner, blower, venturi and gas tr

Part number 550-100-116/0714121SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Burner, blower, venturi and gas tr

Part number 550-100-116/0714122SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Controls Item Description Part Nu

Part number 550-100-116/0714123SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE ControlsReplacement parts (contin

Part number 550-100-116/0714124SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Dimensional data — ,%&4(!.$ c

Part number 550-100-116/0714125SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Dimensional data — 2)'(4(!.$

Part number 550-100-116/0714126SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualRatings — SlimFit boilers&IGURE Ratings a

Part number 550-100-116/0714127SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualNotes

SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualSlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualInstallation

Part number 550-100-116/071413SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualPrepare boiler (continued)3. Aach a water supply

Part number 550-100-116/071414SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualInstall water piping Use two wrenches when tighten

Part number 550-100-116/071415SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualInstall water piping (continued)Recommended pipe si

Part number 550-100-116/071416SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualInstall water piping (continued)Expansion tank and

Part number 550-100-116/071417SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualLegend — Figure 161 SlimFit boiler2 Indirect water

Part number 550-100-116/071418SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualLegend — Figure 171 SlimFit boiler2 Indirect water

Part number 550-100-116/071419SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualInstall water piping (continued)&IGURE Pump

Part number 550-100-116/07142SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualThe SlimFit™ Commercial Condensing Water Boiler3LIM&

Part number 550-100-116/071420SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Typical radiant heating system pipin

Part number 550-100-116/071421SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Chilled water system plus optional D

Part number 550-100-116/071422SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualMultiple boiler water pipingMultiple boiler piping1

Part number 550-100-116/071423SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualMultiple boiler water piping (continued)&IGURE

Part number 550-100-116/071424SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualMultiple boiler water piping (continued)&IGURE

Part number 550-100-116/071425SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Piping layout — typical piping for m

Part number 550-100-116/071426SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Piping layout — typical piping for m

Part number 550-100-116/071427SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Piping layout — typical piping for m

Part number 550-100-116/071428SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualVenting/combustion air — general 3LIM&IT &quo

Part number 550-100-116/071429SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualVenting/combustion air — general (continued)Combust

Part number 550-100-116/07143SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualThe SlimFit™ Commercial Condensing Water Boiler (Mod

Part number 550-100-116/071430SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualVenting/combustion air — options&IGURE Slim

Part number 550-100-116/071431SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Vent and air piping materials — Use

Part number 550-100-116/071432SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE PVC 

Part number 550-100-116/071433SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualVenting/air piping — Massachusetts installationsVen

Part number 550-100-116/071434SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDIRECT EXHAUST — Boiler room air openingsCombustion

Part number 550-100-116/071435SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDIRECT EXHAUST — Boiler room air openings (continue

Part number 550-100-116/071436SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDIRECT EXHAUST — Termination location &IGURE

Part number 550-100-116/071437SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDIRECT EXHAUST — SidewallDetermine termination loca

Part number 550-100-116/071438SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDIRECT EXHAUST — Sidewall (continued)&IGURE

Part number 550-100-116/071439SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDIRECT EXHAUST — Vertical&IGURE Vertical di

Part number 550-100-116/07144SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualContents . . . . . . . . . . . . . .

Part number 550-100-116/071440SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDIRECT VENT — Boiler room air openingsCombustion/ve

Part number 550-100-116/071441SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDIRECT VENT — Boiler room air openings (continued)&

Part number 550-100-116/071442SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDIRECT VENT — Termination location &IGURE $

Part number 550-100-116/071443SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDIRECT VENT — SidewallDetermine termination locatio

Part number 550-100-116/071444SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDIRECT VENT — Sidewall (continued)&IGURE Di

Part number 550-100-116/071445SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDIRECT VENT — Vertical&IGURE Vertical direc

Part number 550-100-116/071446SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDIRECT VENT — Vertical (continued)&IGURE Ve

Part number 550-100-116/071447SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualDIRECT VENT — Vertical (continued)&IGURE Te

Part number 550-100-116/071448SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualInstall condensate componentsAssemble condensate tr

Part number 550-100-116/071449SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualGas piping$/./4CONNECTTHE3LIM&ITBOILERTO

Part number 550-100-116/07145SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual &AILURETOADHERETOTHEGUIDELINESBELOWCAN

Part number 550-100-116/071450SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Pipe capacity for natural gasGas pip

Part number 550-100-116/071451SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualField wiring (see &IGURE&IGURE %

Part number 550-100-116/071452SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualField wiring (see &IGURE&IGURE (c

Part number 550-100-116/071453SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualField wiring (see &IGURE&IGURE (c

Part number 550-100-116/071454SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualField wiring (see &IGURE&IGURE (c

Part number 550-100-116/071455SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualField wiring (see &IGURE&IGURE (c

Part number 550-100-116/071456SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualField wiring (see &IGURE&IGURE (c

Part number 550-100-116/071457SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualField wiring (see &IGURE&IGURE (c

Part number 550-100-116/071458SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualSola control overview & sequence of operation

Part number 550-100-116/071459SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual10. At the end of the CH-heat request the burner i

Part number 550-100-116/07146SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualPrepare boiler locationInstallations must comply wit

Part number 550-100-116/071460SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualSola control interface and menusPower-up & init

Part number 550-100-116/071461SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualSola control interface and menus (continued)&IG

Part number 550-100-116/071462SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualConfiguration (HOME PAGE CONFIGURE)1. Most pa

Part number 550-100-116/071463SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE History screen, typical4. History s

Part number 550-100-116/071464SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Analog I/O Status pageDiagnostics Te

Part number 550-100-116/071465SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual3. Trend analysis graph pagea. is page shows a g

Part number 550-100-116/071466SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualTrend Analysis Snapshot1. e trend analysis snapsh

Part number 550-100-116/071467SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Display diagnostics8. Each test is i

Part number 550-100-116/071468SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualSola control express setup — single boiler&IGUR

Part number 550-100-116/071469SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualZoning with zone valves — Primary/secondary piping

Part number 550-100-116/07147SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Clearances for LEFT-HAND boilers

Part number 550-100-116/071470SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualSola control express setup — multiple boilers&I

Part number 550-100-116/071471SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualSola control express setup — multiple boilers (cont

Part number 550-100-116/071472SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual-ENU)TEM 5NITSLow ValueHigh ValueDefault Descripti

Part number 550-100-116/071473SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE (continued) Sola CONFIGURATION VALUE

Part number 550-100-116/071474SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE (continued) Sola CONFIGURATION VALUE

Part number 550-100-116/071475SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual-ENU)TEM 5NITSLow ValueHigh ValueDefault Descripti

Part number 550-100-116/071476SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual-ENU)TEM 5NITSLow ValueHigh ValueDefault Descripti

Part number 550-100-116/071477SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual-ENU)TEM 5NITSLow ValueHigh ValueDefault Descripti

Part number 550-100-116/071478SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual-ENU)TEM 5NITSLow ValueHigh ValueDefault Descripti

Part number 550-100-116/071479SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual-ENU)TEM 5NITSLow ValueHigh ValueDefault Descripti

Part number 550-100-116/07148SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualPrepare boiler location (continued)Placing multiple

Part number 550-100-116/071480SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual-ENU)TEM 5NITSLow ValueHigh ValueDefault Descripti

Part number 550-100-116/071481SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual-ENU)TEM 5NITSLow ValueHigh ValueDefault Descripti

Part number 550-100-116/071482SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual-ENU)TEM 5NITSLow ValueHigh ValueDefault Descripti

Part number 550-100-116/071483SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual-ENU)TEM 5NITSLow ValueHigh ValueDefault Descripti

Part number 550-100-116/071484SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual-ENU)TEM 5NITSLow ValueHigh ValueDefault Descripti

Part number 550-100-116/071485SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE (continued) Sola CONFIGURATION VALUE

Part number 550-100-116/071486SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE (continued) Sola CONFIGURATION VALUE

Part number 550-100-116/071487SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualStartup — fill the systemClean system to remove sedi

Part number 550-100-116/071488SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualStartup — fill the system (continued) FREEZE PROT

Part number 550-100-116/071489SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualStartup — final checksCheck thermostat circuit(s)1.

Part number 550-100-116/07149SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualPrepare boiler location (continued)&IGURE Sid

Part number 550-100-116/071490SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual You must log in with the contractor password befo

Part number 550-100-116/071491SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualYou must re-install the ue gas sample port cover t

Part number 550-100-116/071492SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualStartup procedure (continued)Adjust and test boiler

Part number 550-100-116/071493SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler Manual&IGURE Operating instructions (WARNING — Ve

Part number 550-100-116/071494SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualSola Information and Operations screens $/./4/0%

Part number 550-100-116/071495SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualSola Information and Operations screens (continued)

Part number 550-100-116/071496SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualAnnual startup and maintenance schedule&IGURE

Part number 550-100-116/071497SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualAnnual startupHANDLING CERAMIC FIBER MATERIALSREMOV

Part number 550-100-116/071498SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualAnnual startup (continued) e boiler should be ins

Part number 550-100-116/071499SlimFit™ COMMERCIAL CONDENSING GAS-FIRED WATER BOILER — Boiler ManualAnnual startup (continued)2. Verify that boiler ve