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Weil-McLain Simplicity 110 Manual
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Weil-McLain Simplicity 110 Manual

Weil-McLain Simplicity 110 Manual

Wall mount gas combi boiler
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• Installation
• Startup
• Maintenance
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This manual must only be used by a qualified heating installer/service technician. Read all instructions, including this
manual and all other information shipped with the boiler, before installing. Perform steps in the order given. Failure to
comply could result in severe personal injury, death or substantial property damage.
Wall Mount Gas Combi Boilers
110/150/199
Part number 550-143-073/0924
TM

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Summary of Contents for Weil-McLain Simplicity 110

  • Page 1 110/150/199 Wall Mount Gas Combi Boilers Boiler Manual • Installation • Startup • Maintenance • Parts With Built-In Bluetooth Capability ® This manual must only be used by a qualified heating installer/service technician. Read all instructions, including this manual and all other information shipped with the boiler, before installing. Perform steps in the order given. Failure to comply could result in severe personal injury, death or substantial property damage.

  • Page 2: Table Of Contents

    SIMPLICITY gas-fired water boiler – boiler manual Contents Section 1 - Safety Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 DO NOT SERVICE THE BOILER WITHOUT A Tools .

  • Page 3: Abbreviations

    SIMPLICITY gas-fired water boiler – boiler manual Abbreviations Tools Table 1 Common abbreviations Table 2 Tools Abbreviation Description Tools Needed Used For Purpose Additional Heat Demand Flat blade screwdriver Wiring on terminal blocks I, M Ampere or Amperage Gas and water piping Phillips Screwdriver I, M installation...
  • Page 4 SIMPLICITY gas-fired water boiler – boiler manual This page intentionally left blank . Part Number 550-143-073/0924...

  • Page 5: Section 1 - Safety

    SIMPLICITY gas-fired water boiler – boiler manual Section 1 Safety Hazard Definitions The following defined terms are used throughout this manual to bring attention to the presence of hazards of various risk levels or to important information concerning the life of the product . Indicates presence of hazards that will cause severe personal injury, death or substantial property damage .

  • Page 6: Please Read Before Proceeding

    . after the water is gone due to the conductive and corrosive nature of the salt residue . Therefore, Weil-McLain equipment contaminated with saltwater or polluted water will no longer be covered under warranty and should be replaced .

  • Page 7: Section 2 - Installation

    SIMPLICITY gas-fired water boiler – boiler manual Section 2 Installation This page intentionally left blank . Part Number 550-143-073/0924...

  • Page 8: Boiler Components

    SIMPLICITY gas-fired water boiler – boiler manual Boiler Components Stainless Steel Firetube Heat Exchanger Boiler Water Inlet Pipe (199 - 1" Male NPT; 110/150 - 3/4" Male NPT) The corrosion resistant fire tube heat exchanger is our method of transferring heat from the combustion chamber to the water . Gas Line Heat Exchanger Cover Plate/Burner Mounting Plate This gas line connects the incoming gas line to the gas valve .

  • Page 9: Bottom View

    SIMPLICITY gas-fired water boiler – boiler manual Boiler Components (Model 150 shown) (continued) Flue Gas Measurement Port 3-Way Valve Actuator DHW Braze Plate 3 21 Top View Bottom View Display Detail Part Number 550-143-073/0924...

  • Page 10: Boiler Location

    . 3 . Direct exhaust venting can be done with the approved • Incorrectly-sized expansion tank . Weil-McLain Direct Exhaust Kit, please see, page 151 for • Lack of freeze protection in boiler water causing system kit information .
  • Page 11 SIMPLICITY gas-fired water boiler – boiler manual Boiler Location (continued) Provide Clearances for Service Access – Provide Clearances from Combustible Recommended Materials – Required 3 . See Figure 2 for REQUIRED minimum clearances . ALL 1 . See Figure 1 for recommended service clearances . installation must provide at least these minimums .

  • Page 12: Prepare Boiler Location

    SIMPLICITY gas-fired water boiler – boiler manual Prepare Boiler Location Remove Boiler from Crate Figure 3 Boiler shipping container y The boiler is heavy . Use caution not to drop the boiler or cause bodily injury while lifting and handling . Verify that the boiler is securely attached to prevent possibility of boiler falling after installation .

  • Page 13: Wall-Mounting The Boiler

    SIMPLICITY gas-fired water boiler – boiler manual Wall-Mounting the Boiler Wall-Mounting Requirements Install the Wall-Mount Bracket (By Installer) 1 . See Figure 4. 2 . Locate the studs – must be on 16-inch centers . See previous This boiler is Wall-Mount Only, it cannont be installed on the floor. page instructions if studs are not on 16-inch centers .
  • Page 14 SIMPLICITY gas-fired water boiler – boiler manual Wall-Mounting The Boiler (continued) Figure 6 Boiler mounting bracket Figure 7 Boiler lower mounting bracket 9 . Once boiler is hanging properly, finish install by securing boiler with the bottom bracket mounting holes (item 5) using same technique as wall mount bracket .

  • Page 15: Boiler Hydrostatic Test

    SIMPLICITY gas-fired water boiler – boiler manual Boiler Hydrostatic Test Fill and Pressure Test 1 . See Figure 9, page 16 for use with the following y DO NOT install a relief valve with a pressure higher instructions . than 50 PSIG . This is the maximum allowable relief valve 2 .
  • Page 16 SIMPLICITY gas-fired water boiler – boiler manual Boiler Hydrostatic Test (continued) Figure 8 Figure 9 Install pipe fittings for relief valve and pressure/ Install piping components required for hydrostatic test (see legend below) temperature gauge – DO NOT mount relief valve until AFTER hydrostatic testing (see legend below) Recommended but...

  • Page 17: Gas Conversions

    Simplicity 110/150/199 (if required) Propane Operation Simplicity 110 LP P/N 510-811-415 NG to Propane Gas Conversion Kit contents: Venturi - Liquefied Petroleum (Propane) Gas ALL boilers must be converted for propane operation Screw Pan Hd. T20 M4-.7x12mm w/Sq. Con. Lock Washer Converting an existing natural gas-fired boiler for Washer .64 I.D.
  • Page 18 Liquefied Petroleum (Propane) to Natural Figure 11 Natural gas venturi label identification Conversion Kits (White label) Boiler Simplicity 110 NG P/N 383-700-305 LP to Natural Gas Conversion Kit contents: Part Number Gas Type Venturi Ø Model Venturi - Natural Gas 511-050-230 Screw Pan Hd T20 M4-.7x12mm w/Sq.
  • Page 19 SIMPLICITY gas-fired water boiler – boiler manual Gas Conversions (continued) Label Wires Before Removing Figure 16 Venturi removed from blower Label all wires prior to disconnection when servicing controls . Wiring errors can cause improper and dangerous operation . 7 . Disconnect wire harness from gas valve . 8 .
  • Page 20 SIMPLICITY gas-fired water boiler – boiler manual Gas Conversions (continued) Adjust the offset regulating screw using the following steps, referencing Figure 20: Inspect the gas pipe fitting connections on the gas valve and new venturi (Item 3, Figure 18) . Check the seal of the connections . 1 .
  • Page 21 SIMPLICITY gas-fired water boiler – boiler manual Gas Conversions (continued) Apply Installer Conversion Label 3 . Prior to turning on the boiler, review the procedure and control sequence for the operation of the Manual Test Mode in the 1 . After installation is complete and boiler is set up for propane section of the Boiler Manual titled “Manual Test Mode”...

  • Page 22: Gas Piping

    Pipe sizing for natural gas Simplicity 110: 3½" (89 mm) w .c . Simplicity 150/199: 3½" (89 mm) w .c . 1 . Size gas piping from meter outlet to entrance of boiler in accordance with Figure 23 and Figure 24 .

  • Page 23: Venting/Air Piping

    SIMPLICITY gas-fired water boiler – boiler manual Venting/Air Piping – General Any improper operation of a common venting system should be at maximum speed . Do not operate a summer exhaust fan . corrected so the installation conforms with the National Fuel Gas Close fireplace dampers.

  • Page 24: Installing Vent And Air Piping

    For boilers allowed to utilize polypropylene vent systems. You must pipe combustion air to the boiler air intake unless using the Weil-McLain Direct Exhaust kit and meeting the Tests have determined that flex vent has a greater pressure Direct Exhaust requirements .
  • Page 25 Maximum vent lengths apply for either 2" or 3" vent and air pipe . If using 2" pipe, provide 3"x 2" tapered reducers at boiler connections and at Weil-McLain vent/air cap or at concentric terminations . Boilers will derate as vent/air pipe length increases – see rating data on Figure 133, page 164 for derate amounts .
  • Page 26 See Figure 118, page 150 for Mfg's adapter part numbers . Weil-McLain stainless steel bird screens, 2" or 3" (purchase separately) – see Figure 121, page 150 for part numbers. Note 1: Weil-McLain concentric vent kits are made from PVC y DO NOT cover non-metallic vent pipe and fittings with thermal pipe and fittings.

  • Page 27: Commonwealth Of Massachusetts Installations

    SIMPLICITY gas-fired water boiler – boiler manual Commonwealth of Massachusetts Installations For all sidewall horizontally-vented : The following equipment is exempt from REQUIREMENTS: EXEMPTIONS gas-fueled equipment installed in every dwelling, 248 CMR 5 .08(2)(a)1 through 4: building or structure used in whole or in part for 1 .

  • Page 28: Vent Termination Requirements

    SIMPLICITY gas-fired water boiler – boiler manual Vent Termination Requirements Figure 28 The vent termination must be located to meet all requirements below (also applies to vertical vent terminations). The minimum distance from adjacent public walkways, adjacent buildings, open able windows and building in the National Fuel Gas Code, ANSI Z223.1/NFPA 54 and/or the Natural Gas and Propane Installation Code, CAN/CSA B149.1.

  • Page 29: Boiler Room Air Openings

    SIMPLICITY gas-fired water boiler – boiler manual Boiler Room Air Openings Figure 29 Combustion and ventilation air openings for Direct Vent installations . Also follow the National Fuel Gas Code, ANSI Z223 .1/NFPA 54 – latest edition, and/or Natural Gas and Propane Installation Code, CAN/CSA B149 .1 or applicable provisions of the local building codes .

  • Page 30: Vent And Air Piping And Boiler Connections

    SIMPLICITY gas-fired water boiler – boiler manual Vent and Air Piping and Boiler Connections Follow Termination Instructions Figure 30 Boiler vent and air connections Read and follow all instructions for the termination type used before proceeding with this page . Follow all instructions provided by vent pipe manufacturer .

  • Page 31: Direct Vent - Sidewall With Separate Pipes

    SIMPLICITY gas-fired water boiler – boiler manual Direct Vent – Sidewall with Separate Pipes Allowable Vent/Air Pipe Materials & Lengths Figure 31 INSTALLATION SEQUENCE – Separate pipes sidewall o m o c e s n a p a r t Use only the vent materials and kits listed in Figure 27, V E N T l l b r a...

  • Page 32: Prepare Wall Penetrations

    SIMPLICITY gas-fired water boiler – boiler manual Direct Vent – Sidewall with Separate Pipes (continued) See notices on previous page . Figure 32 Multiple terminations –– separate pipes –– clearance from vent of one air intake of the next Prepare Wall Penetrations 12”...

  • Page 33: Direct Vent - Sidewall Concentric

    SIMPLICITY gas-fired water boiler – boiler manual Direct Vent – Sidewall Concentric Allowable Vent/Air Pipe Materials & Lengths Figure 35 – Concentric INSTALLATION SEQUENCE horizontal 1 . The concentric termination kit must be purchased separately . Use only the vent materials and kits listed in Figure 27, .
  • Page 34 SIMPLICITY gas-fired water boiler – boiler manual Direct Vent – Sidewall Concentric (continued) See notices on previous page . Figure 36 Termination location – concentric termination – multiple boilers – clearance from vent of one to air intake of the next Install Termination –...

  • Page 35: Direct Vent - Sidewall With W-M Vent/Air Plate

    All vent pipes and air inlets must terminate at the same Weil-Mclain Vent/Air Cap" on page 36. height to avoid possibility of severe personal injury, death Step 7 The Weil-McLain plate termination must be installed or substantial property damage . before piping from the boiler to the termination .
  • Page 36 . Figure 40 Hole preparation in wall – INSIDE VIEW For the Weil-McLain plate, the template must be level to ensure (use template provided) the flue and air pipe will be side-to-side, as shown in Figure 40. Failure to comply could result in severe personal injury, death or Drill: 3 1/2”...

  • Page 37: Direct Vent - Vertical With Separate Pipes

    SIMPLICITY gas-fired water boiler – boiler manual Direct Vent – Vertical with Separate Pipes Allowable Vent/Air Pipe Materials & Lengths Figure 42 Separate pipes vertical termination Use only the vent materials and kits listed in Figure 27, page 26. Provide pipe adapters if specified. Locate the terminations such that the total air piping and vent piping from the boiler to the termination will not exceed the maximum length given in Figure 26, page 25 .

  • Page 38: Prepare Roof Penetrations

    SIMPLICITY gas-fired water boiler – boiler manual Direct Vent – Vertical with Separate Pipes (continued) See notices on previous page . Figure 43 Terminations for multiple boilers 12” minimum between edge of air Prepare Roof Penetrations intake pipe and adjacent vent pipe from another boiler 1 .

  • Page 39: Direct Vent - Vertical Concentric

    SIMPLICITY gas-fired water boiler – boiler manual Direct Vent – Vertical Concentric Allowable Vent/Air Pipe Materials & Lengths Figure 44 – Concentric INSTALLATION SEQUENCE 1 . The concentric termination kit must be purchased separately . vertical Use only the vent materials and kits listed in Figure 27, page 26.
  • Page 40 SIMPLICITY gas-fired water boiler – boiler manual Direct Vent – Vertical Concentric (continued) Figure 45 Vertical termination – 3" PVC concentric – See notices on previous page . single or multiple boilers Mount Concentric Termination 1 . Assemble the vent termination as described for concentric terminations, on page 44 .

  • Page 41: Direct Vent - Vertical Vent/Sidewall Air

    SIMPLICITY gas-fired water boiler – boiler manual Direct Vent – Vertical Vent/Sidewall Air Allowable Vent/Air Pipe Materials & Lengths Figure 47 – Vertical vent/ INSTALLATION SEQUENCE sidewall air Use only the vent materials and kits listed in Figure 27, page 26. Provide pipe adapters if specified. V E N T 1 .
  • Page 42 SIMPLICITY gas-fired water boiler – boiler manual Direct Vent – Vertical Vent /Sidewall Air (continued) Determine Location for Air Inlet Elbow Figure 48 Vent termination (through the roof) for 1 . The air inlet of an Simplicity boiler is part of a direct vent direct vent: vertical vent / sidewall air connection.

  • Page 43: Direct Exhaust - Kit Option

    – boiler manual Direct Exhaust - Kit Option Weil-Mclain's Direct Exhaust Kit must be used to field convert y Installers must add in Simplicity's BTU rating into calculations the Simplicity Boiler to a Direct Exhaust Boiler . All instructions...

  • Page 44: Concentric Termination, Typical (Sidewall Or Vertical)

    SIMPLICITY gas-fired water boiler – boiler manual Concentric Termination, Typical (sidewall or vertical) Assembling Concentric Termination Figure 50 PVC concentric termination assembly – DO NOT attach the rain cap until the termination 1 . Follow all instructions provided with the concentric has been inserted through the roof or wall termination kit .

  • Page 45: Install Boiler Water Piping

    3 . Use a low water cutoff designed for water installations. Electrode probe-type is recommended . See Replacement parts for the Weil-McLain low water cut-off kit. When using kit, ensure extra wire length is neatly bundled with zip ties and away from internal components .

  • Page 46: Led Color

    SIMPLICITY gas-fired water boiler – boiler manual Install Boiler Water Piping (continued) General Piping Information Table 4 Head Loss through Boiler Figure 1 Head Loss through Boiler Head Loss 110 C 150 C 199 C Flow Through Boiler Loop Rate Head Loss Head Loss Head Loss...

  • Page 47: Domestic Water Piping - Combi Boiler

    . See page 52 for be needed to adapt to domestic water piping . Weil-McLain’s DHW Service Valve Kit installation and 2 . In hard water areas – To prevent the formation of scale Figure 121, page 150 for kit part number .

  • Page 48: Recirculation (If Used)

    SIMPLICITY gas-fired water boiler – boiler manual Install Boiler Water Piping (continued) Recirculation (if used) Figure 53 Domestic Piping - Brazed Plate Heat Exchanger - Ports 2 and 4 Massachusetts code applications require recirculation piping or heat-traced piping if the distance from the water heater to the furthest fixture exceeds 100 feet.
  • Page 49 SIMPLICITY gas-fired water boiler – boiler manual Install Boiler Water Piping (continued) Figure 54 Recirculation piping diagram (if used) 1) Combi Boiler 2) Union 3) Drain/Purge Valve 4) Spring Check Valve 5) Relief Valve (150 PSIG) Domestic Hot Domestic Cold 6) Isolation Valve 7) Three Way Mixing Valve 8) ½"...

  • Page 50: Primary/Secondary System Piping

    SIMPLICITY gas-fired water boiler – boiler manual Primary/Secondary System Piping - Single Boiler System Expansion Tank Location Figure 55 Piping to diaphragm (or bladder) expansion Figure 55 and Figure 56 show typical installation of the tank system expansion tank . It is highly recommended that you locate the air separator and expansion tank as shown in the suggested piping drawings on page 53 - page 55 .

  • Page 51: Install Relief Valve

    SIMPLICITY gas-fired water boiler – boiler manual Primary/Secondary System Piping - Single Boiler System (continued) Install Relief Valve 1 . Install relief valve in a " street elbow along with a " Correct all leaks in the system or tank piping . Leaks allow tee onto the top water pipe –...

  • Page 52: Boiler Circulator

    . Boiler Circulator 2 . See separate instructions for the Easy Up Manifold at weil-mclain.com for suggested guidelines to determine The boiler circulator is factory-installed in the boiler as how to use and setup . shown in this manual . The boiler circulator is selected to ensure adequate flow through the boiler loop.

  • Page 53: Zone Valve Zoning - Primary/Secondary

    SIMPLICITY gas-fired water boiler – boiler manual Primary/Secondary System Piping - Single Boiler System (continued) Zone Valve Zoning – Primary/Secondary Figure 58 Zone valve zoning – primary/secondary See Figure 58. connection – a system circulator is required 1 . This configuration is for zone valve systems using a boiler loop connected as a secondary circuit off of a primary system loop.

  • Page 54: Circulator Zoning - Primary/Secondary

    SIMPLICITY gas-fired water boiler – boiler manual Primary/Secondary System Piping (continued) Circulator Zoning – Primary/Secondary Figure 59 Circulator zoning plus optional DHW piping (Shown with optional DHW piping) See Figure 59. 1 . This configuration is for circulator-zoned systems using a boiler loop connected as a secondary circuit off of a primary system loop .

  • Page 55: Circulator Zoning - Multiple Temperature Zones With Primary/Secondary

    SIMPLICITY gas-fired water boiler – boiler manual Primary/Secondary System Piping (continued) Circulator Zoning – Multiple Temperature Figure 60 Circulator zoning with high- and low- Zones with Primary/Secondary temperature heating zones (Shown with optional DHW piping) See Figure 60 1 . This configuration is for circulator-zoned systems with high- and low-temperature heating zones using a boiler loop connected as a secondary circuit off of a primary system loop .

  • Page 56: Install Condensate Drain Line & Trap Assembly

    3.2 to 4.5). Install a neutralizing filter when draining into metal pipe and if required by local codes . See "Replacement Parts" Slide Trap up into on page 152 at the end of this manual for the Weil-McLain kit . Tube and secure by tightening clamp.

  • Page 57: Gas Piping

    SIMPLICITY gas-fired water boiler – boiler manual Gas Piping Boilers are shipped ready to operate on natural gas ONLY . You Use two wrenches when tightening gas piping at boiler, using must install the propane mixer (venturi) and orifice if the boiler one wrench to prevent the boiler gas line connection from turning .
  • Page 58 SIMPLICITY gas-fired water boiler – boiler manual This page intentionally left blank . Part Number 550-143-073/0924...

  • Page 59: Section 3 - Electrical

    SIMPLICITY gas-fired water boiler – boiler manual Section 3 Electrical Field Wiring ELECTRICAL SHOCK HAZARD – For your safety, turn off electrical power supply at service entrance panel before making any electrical connections to avoid possible electric shock hazard . Failure to do so can cause severe personal injury or death .

  • Page 60: Boiler Wiring

    SIMPLICITY gas-fired water boiler – boiler manual Field Wiring (continued) Boiler wiring Wire Routing in the Cabinet (see next page) Line Voltage: (120VAC in, circulator outputs) Connecting Terminals 1 . Line voltage should be wired through the bottom left All low voltage field wiring is made directly to the knockouts .

  • Page 61: Low Voltage Terminals

    SIMPLICITY gas-fired water boiler – boiler manual Field Wiring (continued) Low Voltage Wire Routing (top entrance) Figure 65 Field wiring overview - Line and low voltage routing Low Voltage Line Voltage Low Voltage Wire Routing Knockouts Knockouts (bottom entrance) Low Voltage Terminals High Voltage High Voltage...
  • Page 62 SIMPLICITY gas-fired water boiler – boiler manual Field Wiring (see wiring diagram, Figure 66, page 68 ) (continued) A. 120VAC Power Supply – REQUIRED Terminal Strip T 1 . Full loading is less than 12-amps . Provide and install a properly-sized, fused disconnect or service switch as required by applicable codes .
  • Page 63 SIMPLICITY gas-fired water boiler – boiler manual Field Wiring (see wiring diagram, Figure 66, page 68) (continued) C. Heat Demand Input – As needed for systems J17 Pins 4, 5, 6 1 . This input on the boiler can indicate a call for heat to the control by means of a dry contact closure (heat demand, end switch, etc .) .
  • Page 64 SIMPLICITY gas-fired water boiler – boiler manual Field Wiring (see wiring diagram, Figure 66, page 68) (continued) D. System supply and return temperature sensors – Recommended when using primary secondary piping design. Connector J19 1 . It is recommended to use two (2) strap-on temperature sensors (separate kit option) .
  • Page 65 1 . Install a low water cut-off (required) (see Figure 51, page 45) . 2 . Wiring Weil-McLain LWCO Kit: a . When possible, use the Weil-McLain Low water cut-off kit listed in the back of this manual. It includes a probe-type low water cut-off and provides a simple harness connection for the wiring .
  • Page 66 SIMPLICITY gas-fired water boiler – boiler manual Field Wiring (see wiring diagram, Figure 66, page 68) (continued) I. Proof of closure (flow switch and/or CAD) Jumper on Connector J18 1 . A flow switch can be configured by removing the jumper on connector J18 and wiring components as shown at right and in the wiring diagram (Figure 66, page 68) .
  • Page 67 SIMPLICITY gas-fired water boiler – boiler manual Field Wiring (see wiring diagram, Figure 66, page 68) (continued) J. Touch screen display connection Connector J14 1 . The electronic black and white touch screen display is factory wired to the control and is connected to the J14 connector . 2 .

  • Page 68: Wiring Diagram - Schematic

    SIMPLICITY gas-fired water boiler – boiler manual Wiring Diagram – Schematic Figure 66 Schematic wiring diagram Flue Boiler Boiler temp. 3-way valve Water Touch screen inlet sensor outlet valve Actuator flow temp. temp. temp. Display sensor sensor sensor sensor 110C/150C Models Only WM Technologies •...

  • Page 69: Wiring Diagram - Ladder

    Michigan City, IN 46360-2388 6. Preferably, use the provided Weil-McLain LWCO Kit, part number 511-100-005, with LWCO, Molex plug and wire harness. Remove the factory Molex, and plug the LWCO harness ends into the low water cutoff receptacle and J21 on the circuit board. To field wire a non-...
  • Page 70 SIMPLICITY gas-fired water boiler – boiler manual This page intentionally left blank . Part Number 550-143-073/0924...

  • Page 71: Section 4 - Operation

    SIMPLICITY gas-fired water boiler – boiler manual Section 4 Operation Simplicity Control Operation Control Features Simplicity Control Operation The control responds to signals from the room thermostats, DHW flow demand and DHW temperature sensor, boiler sensors (Boiler out, Boiler In, flue temperature), outdoor temperature and system sensors, if used .

  • Page 72: Control Features

    SIMPLICITY gas-fired water boiler – boiler manual Simplicity Control Operation (continued) Control Features Simplicity Control Priorities & Input/Outputs ‰ Upload, adjust settings, and perform easier diagnostics via wireless communication . y The control’s MAX and MIN time settings determine ‰ Easy configuration with WIZARD step-by-step setup. the maximum and minimum times a system will be operated before being turned off to allow another ‰...
  • Page 73 SIMPLICITY gas-fired water boiler – boiler manual Simplicity Control Operation (continued) Sequence Of Operation Setting Up the Boiler Figure 68 is a summary of the operating sequence for the control . • DETERMINE input/output needs – Step 1 y The statuses shown appear in the display as the control •...

  • Page 74: Outdoor Reset Operation

    SIMPLICITY gas-fired water boiler – boiler manual Simplicity Control Operation (continued) Simplicity Control Operation Figure 69 Outdoor reset operation The control responds to signals from: y DHW Flow demand . y DHW Temperature sensor . y Room thermostats . y Temperature sensors Boiler Out, Boiler In, flue temperature and when used, outdoor temperature .
  • Page 75 SIMPLICITY gas-fired water boiler – boiler manual Simplicity Control Operation (continued) Figure 70 Boiler essential settings (REQUIRED on initial start-up) – see page 103 for explanation Screen Branching Options 1 . Goes to Startup Screen when powered up and fully configured. 2 .

  • Page 76: Control Settings Menus

    SIMPLICITY gas-fired water boiler – boiler manual Control Settings Menus Figure 71 Simplicity control display screen layout and elements STATUS COLUMN: STANDBY through HEAT appear based on the status of the corre- sponding input. Dot appears next to the priority currently being serviced. OUTPUTS ROW: 120v outputs and the status for each.

  • Page 77: Startup And Wizard Walk-Through

    SIMPLICITY gas-fired water boiler – boiler manual Startup and Wizard Walk-Through SCREEN DESCRIPTION y On power up and factory reset, the display will show all icons on while communications are LOAD SCREEN established with the main control . This can take several seconds .
  • Page 78 SIMPLICITY gas-fired water boiler – boiler manual Startup and Wizard Walk-Through (continued) SCREEN DESCRIPTION y This screen will appear if a replacement display is connected to a configured control, and vise versa. y Choose COPY FROM DISPLAY to carry over the settings stored in the display when replacing the control .
  • Page 79 SIMPLICITY gas-fired water boiler – boiler manual Startup and Wizard Walk-Through (continued) SCREEN DESCRIPTION y The Startup screen shows the user the current model programmed on the control . Pressing the Down arrow will allow the user to look through the current status of the system supply, system return and outdoor temperature sensors .
  • Page 80 SIMPLICITY gas-fired water boiler – boiler manual Startup and Wizard Walk-Through (continued) SCREEN DESCRIPTION y The Mix Valve warning screen warns the user that a mixing valve is required to operate the Combi MIXING VALVE DHW feature . Ensure the proper installation of a SCREEN mixing valve before operating the Combi DHW feature .
  • Page 81 SIMPLICITY gas-fired water boiler – boiler manual Startup and Wizard Walk-Through (continued) MENU ITEM DESCRIPTION y The DHW Enable/Disable screen allows users to disable the Combi DHW feature if necessary, ENABLE while still allowing operation for space Heat SCREEN applications . Part Number 550-143-073/0924...
  • Page 82 SIMPLICITY gas-fired water boiler – boiler manual Startup and Wizard Walk-Through (continued) MENU ITEM DESCRIPTION y Select the appropriate fuel type based on the application . Pressing EDIT then down arrow will allow the user to switch to LP fuel type . Press ENTER to confirm, or left arrow to cancel.
  • Page 83 SIMPLICITY gas-fired water boiler – boiler manual Startup and Wizard Walk-Through (continued) MENU ITEM DESCRIPTION y The Read/Write Options screen allows the user to choose between setting up the boiler control using the display’s built-in Wizard, or using the WM ProTools app to complete setup . READ/WRITE y Pressing the up/down arrows will change between OPTIONS...
  • Page 84 SIMPLICITY gas-fired water boiler – boiler manual Startup and Wizard Walk-Through (continued) MENU ITEM DESCRIPTION y This screen will appear if SET UP IN DISPLAY was selected previously AND the user did not disable COMBI DHW . If the user disabled COMBI DHW previously, this screen will not appear .
  • Page 85 SIMPLICITY gas-fired water boiler – boiler manual Startup and Wizard Walk-Through (continued) MENU ITEM DESCRIPTION y The Service Info screen appears after completing all other boiler setup information . Here, the user can edit the information for the following: CP NUMBER, INSTALLED, SRVC DUE y The EDIT button will allow the user to edit any of the information shown .
  • Page 86 SIMPLICITY gas-fired water boiler – boiler manual Startup and Wizard Walk-Through (continued) MENU ITEM DESCRIPTION y This screen is reached by pressing the RESET button from the Home Owner screen when a fault or warning occurs . Up to 6 faults/warnings can be shown, one at a time .

  • Page 87: Express Setup - Example A

    SIMPLICITY gas-fired water boiler – boiler manual Express Setup – Example A Combi Boiler Model, SPACE HEATING w/DHW (Circulators without circulator relays) 15) Return temperature Boiler . sensor . Relief valve, supplied 16) Supply temperature with boiler, field piped sensor . –...
  • Page 88 SIMPLICITY gas-fired water boiler – boiler manual Express Setup – Example A (continued) Circulators Without Circulator Relays Control Settings (in order of WIZARD sequences) BOLD ITALIC - value must be set or verified Model, Altitude and Fuel Type are critical settings. BOILER SETTINGS Failure to set correctly could result in severe personal injury, death or substantial property damage .

  • Page 89: Express Setup - Example B

    SIMPLICITY gas-fired water boiler – boiler manual Express Setup - Example B Multi-zone SPACE HEATING (Circulators with circulator relays) 16) Supply temperature Boiler . sensor . Relief valve, supplied 20) Make-up water supply . with boiler, field piped – MUST be piped to Boiler 24) Zone circulators .
  • Page 90 SIMPLICITY gas-fired water boiler – boiler manual Express Setup – Example B (continued) Multi-Zone SPACE HEATING (Circulators Control Settings (in order of WIZARD sequences) with Circulator Relays) BOLD ITALIC - value must be set or verified BOILER SETTINGS Model, Altitude and Fuel Type are critical settings. MODEL Verify model number is correct Failure to set correctly could result in severe personal...

  • Page 91: Express Setup - Example C

    SIMPLICITY gas-fired water boiler – boiler manual Express Setup – Example C Multi-zone SPACE HEATING (Zone valves) 15) Return temperature Boiler . sensor . Relief valve, supplied 16) Supply temperature with boiler, field piped – sensor . MUST be piped to Boiler In connection –...
  • Page 92 SIMPLICITY gas-fired water boiler – boiler manual Express Setup – Example C (continued) Multi-Zone SPACE HEATING (Zone valves) Control Settings (in order of WIZARD sequences) BOLD ITALIC - value must be set or verified Model, Altitude and Fuel Type are critical settings . BOILER SETTINGS Failure to set correctly could result in severe personal injury, death or substantial property damage .

  • Page 93: Homeowner Navigation Menus

    SIMPLICITY gas-fired water boiler – boiler manual Homeowner Navigation Menus 1 . Access contractor menus by pressing and holding the WM Logo for 3 seconds from the home screen . Boiler Model, Altitude and Fuel Type are critical settings . 2 .

  • Page 94: Bluetooth

    SIMPLICITY gas-fired water boiler – boiler manual Homeowner Navigation Menus (continued) 1 . Access contractor menus by pressing and holding the WM Logo for 3 seconds from the home screen . Boiler Model, Altitude and Fuel Type are critical settings . 2 .

  • Page 95: Contractor Menus

    SIMPLICITY gas-fired water boiler – boiler manual Contractor Menus 1 . Access contractor menus by pressing and holding the WM Logo for 3 seconds from the home screen . Boiler Model, Altitude and Fuel Type are critical settings . 2 . See the following pages for explanations of control setting Failure to set correctly could result in severe personal injury, options .

  • Page 96: Boiler Settings Menus

    SIMPLICITY gas-fired water boiler – boiler manual Boiler Settings Menus 1 . Access contractor menus by pressing and holding the WM Logo for 3 seconds from the home screen . Boiler Model, Altitude and Fuel Type are critical settings . 2 .

  • Page 97: System Settings

    SIMPLICITY gas-fired water boiler – boiler manual System Settings 1 . Access contractor menus by pressing and holding the WM Logo for 3 seconds from the home screen . Boiler Model, Altitude and Fuel Type are critical settings . 2 . See the following pages for explanations of control setting Failure to set correctly could result in severe personal injury, options .

  • Page 98: Parameter Menus (Dhw Settings)

    SIMPLICITY gas-fired water boiler – boiler manual Parameter Menus (DHW Settings) 1 . Access contractor menus by pressing and holding the WM Logo for 3 seconds from the home screen . Boiler Model, Altitude and Fuel Type are critical settings. 2 .
  • Page 99 SIMPLICITY gas-fired water boiler – boiler manual Parameter Menus (DHW Settings) (continued) 1 . Access contractor menus by pressing and holding the WM Logo for 3 seconds from the home screen . Boiler Model, Altitude and Fuel Type are critical settings. 2 .

  • Page 100: Parameter Menus (Heat Settings)

    SIMPLICITY gas-fired water boiler – boiler manual Parameter Menus (Heat Settings) 1 . Access contractor menus by pressing and holding the WM Logo for 3 seconds from the home screen . Boiler Model, Altitude and Fuel Type are critical settings. 2 .
  • Page 101 SIMPLICITY gas-fired water boiler – boiler manual Parameter Menus (Heat Settings) (continued) 1 . Access contractor menus by pressing and holding the WM Logo for 3 seconds from the home screen . Boiler Model, Altitude and Fuel Type are critical settings. 2 .
  • Page 102 SIMPLICITY gas-fired water boiler – boiler manual Parameter Menus (Heat Settings) (continued) 1 . Access contractor menus by pressing and holding the WM Logo for 3 seconds from the home screen . Boiler Model, Altitude and Fuel Type are critical settings. 2 .

  • Page 103: Available Control Settings And System Presets

    SIMPLICITY gas-fired water boiler – boiler manual Available Control Settings and System Presets Figure 82 Simplicity Control / Priority Settings PRIORITY SETTINGS Parameter Name Range/ Options HEAT Default Combi DHW Default UNITS See System Type Presets COMBI DHW SYS TYPE SYSTEM, BLR OUT, SYSTEM if detected, BLR MOD SNSR...

  • Page 104: Diagnostic Menu

    SIMPLICITY gas-fired water boiler – boiler manual Diagnostic Menu Figure 84 DIAGNOSTICS Menu MENU/ITEM COMMENT Temperatures Boiler Out1 Temperature of the first sensing element of the boiler’s heat exchanger outlet sensor Boiler Out2 Temperature of the second sensing element of the boiler’s heat exchanger outlet sensor DHW Out1 Temperature of the first sensing element of the boiler’s Combi DHW outlet sensor DHW Out2...

  • Page 105: Diagnostics Menu

    SIMPLICITY gas-fired water boiler – boiler manual Diagnostics Menu (continued) Figure 85 DIAGNOSTICS Menu (continued) Menu/Item Comment RUN TIMES BURNER Displays cumulative time the burner has been active (can be increased by user) Displays cumulative time that flow sensor has detected flow. HEAT Displays cumulative time that Heat Input has been closed (Or 0-10V ≥...

  • Page 106: Service Menus

    SIMPLICITY gas-fired water boiler – boiler manual Service Menus Figure 86 SERVICE Menus – Navigation Service Info Comment MODEL Displays the boiler model selected in the boiler setup CP NUMBER Enter the CP# of the boiler INSTALLED Enter the date the boiler was installed LAST SRVC Date automatically entered when Reset Reminder is chosen by contractor INTERVAL SET...

  • Page 107: Startup - Fill The System

    WM Technologies provides information for application of the antifreeze products listed in this document only for use in Weil-McLain boilers . Do not apply these products or instructions Verify that the water chemistry meets the limitations and for other applications. Local codes may require a back flow requirements of all other equipment in the system .

  • Page 108: Purge Air From Water System

    . Then check the inhibitor level . Add additional inhibitor if necessary . 4 . See separate instructions or weil-mclain.com for Eliminate all system leaks . Continual fresh make-up water will suggested guidelines to determine how much inhibitor reduce boiler life .

  • Page 109: Startup - Final Checks

    SIMPLICITY gas-fired water boiler – boiler manual Startup – Final Checks Inspect/Fill Condensate System Inspect/Check Condensate Lines And Fittings Check for Gas Leaks Inspect the condensate drain line, condensate PVC fittings Before starting the boiler, and during initial operation, use and condensate trap .

  • Page 110: Final Checks Before Starting Boiler

    SIMPLICITY gas-fired water boiler – boiler manual Startup – Final Checks (continued) Final Checks Before Starting Boiler To Start the Boiler Read the instructions to adjust and set up the control . ‰ 1 . Apply power to the boiler via the field installed service switch. Verify that the boiler model is set correctly in the control, and ‰...

  • Page 111: If Boiler Does Not Start Correctly

    Verify boiler has been converted for propane . See 1 . Check for loose connections, blown fuse or service page 17 for Simplicity 110, 150 or 199 . switch off. 2 . Are external limit controls (if used) open? Is boiler water temperature above 200°F?

  • Page 112: Gas Valve Adjustment

    SIMPLICITY gas-fired water boiler – boiler manual Startup – Final Checks (continued) 7 . Measure natural gas input: Figure 89 Throttle and Offset Regulating screw (ONLY for a . Operate boiler 10 minutes. Turn off other appliances. use by a qualified technician, using calibrated combustion test instruments) b .
  • Page 113 SIMPLICITY gas-fired water boiler – boiler manual Startup – Final Checks (continued) Re-Check the Maximum and Minimum Co Figure 90 Acceptable combustion values – measured and Co Rate values must be within the ranges given below 1 . Turn off the boiler and then turn it back on and put in Test High fire Low fire Mode at maximum .

  • Page 114: Check-Out/Startup Verification

    SIMPLICITY gas-fired water boiler – boiler manual Startup – Final Checks (continued) Check Thermostatic Mixing Valve Operation temperature . More than one faucet maybe required for steady modulation and outlet temperature . Ensure an ASSE 1070 Thermostatic Mixing Valve is installed Once the combi boiler is delivering a steady temperature of on the domestic hot water outlet pipe from the combi boiler domestic hot water, follow the manufacturer’s instructions to...

  • Page 115: Annual Startup And General Maintenance

    SIMPLICITY gas-fired water boiler – boiler manual Annual Startup and General Maintenance Follow the service and maintenance procedures given throughout this manual and in component literature shipped with the boiler . Failure to perform the service and maintenance could result in damage to the boiler or system . Failure to follow the directions in this manual and component literature could result in severe personal injury, death or substantial property damage .

  • Page 116: Annual Startup

    First-Year Special Inspection Removing Burner, Cover Plate Or Cover Plate Components It is recommended that you obtain a Weil-McLain Boiler Maintenance kit before attempting the first-year inspection, to ensure all parts that may be needed are available . This y The cover plate components, refractory insulation, and...

  • Page 117: Address Reported Problems

    SIMPLICITY gas-fired water boiler – boiler manual Annual Startup (continued) Clean Condensate Trap 1 . F or cleaning condensate trap, see Figure 92 . y The boiler should be inspected and started annually, at 2 . Loosen the hose clamp connecting the condensate trap to the the beginning of the heating season, only by a qualified condensate drain tube .

  • Page 118: Check Air Openings

    SIMPLICITY gas-fired water boiler – boiler manual Annual Startup (continued) Check Air Openings • Do not use automatic air vents in systems with closed-type tanks . The air will escape from the 1 . Verify that combustion and ventilation air openings to the system instead of returning to the tank .

  • Page 119: Check Ignition Wiring

    SIMPLICITY gas-fired water boiler – boiler manual Annual Startup (continued) Check Ignition Wiring Check Flame Signal 1 . Navigate to Diagnostics/Inputs on the control display (see 1 . Check ignition cable electrical resistance . A good cable will Figure 74, page 95 for navigation instructions and Figure have resistance between 950 and 1050 ohms .

  • Page 120: Natural And Propane Gas Firing Rates And Corresponding Blower Speeds

    SIMPLICITY gas-fired water boiler – boiler manual Annual Startup (continued) Figure 94 Natural and propane gas firing rates and corresponding blower speeds (low fire, ignition, and high fire) – for altitudes up to 2,000 feet (default settings) and high altitude (above 2,000 feet) . Model BTU/Hr BTU/Hr...
  • Page 121 SIMPLICITY gas-fired water boiler – boiler manual Annual Startup (continued) Figure 95 Propane gas firing rates and corresponding blower speeds (LP - low fire, ignition, and high fire) – for altitudes up to 2,000 feet (default settings) and high altitude (above 2,000 feet) . Model Altitude BTU/Hr...

  • Page 122: Propane Gas Firing Rates And Corresponding Blower Speeds

    SIMPLICITY gas-fired water boiler – boiler manual Annual Startup (continued) Figure 96 Propane gas firing rates and corresponding blower speeds (LP - low fire, ignition, and high fire) – for altitudes up to 2,000 feet (default settings) and high altitude (above 2,000 feet) . Model 199 (EF90 Blower) 199 (NG150 Blower)
  • Page 123 SIMPLICITY gas-fired water boiler – boiler manual Annual Startup (continued) Figure 97 as a percentage of exhaust (low fire and high fire) – for altitudes up to 2,000 feet (default settings) and combustion information . high altitude (above 2,000 feet) . Refer to Figure 90, page 113 for detailed 110 (all altitudes) 150 (all altitudes) Fuel Type...

  • Page 124: Check Blower Speeds (Continued)

    SIMPLICITY gas-fired water boiler – boiler manual Annual Startup (continued) Check Blower Speeds mode (model 199) or DHW mode (models 110/150) . (continued) When the actuator is detached, use a blunt object 8 . Write down the blower RPM value . It should be within to push on the 3 way valve shaft still assembled in 50 RPM of the value given in Figure 94, page 120 for the Sanitary Shutter .

  • Page 125: Check Boiler Relief Valve

    SIMPLICITY gas-fired water boiler – boiler manual Annual Startup (continued) Check Boiler Relief Valve Reinstall Jacket Door After Servicing 1 . Inspect the relief valve and lift the lever to verify flow as in the following warnings, excerpted from a relief valve Reinstall boiler jacket door after start-up or servicing .
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  • Page 127: Maintenance - General

    SIMPLICITY gas-fired water boiler – boiler manual Section 5 Maintenance Maintenance - General Cleaning the Heat Exchanger Water Side, when Required 1 . Isolate the boiler from the heating system . DO NOT SERVICE THE BOILER WITHOUT A 2 . Inspect the heating system water . If there is evidence SIMPLICITY MAINTENANCE KIT AVAILABLE of sediment or corrosion, the boiler must be isolated from the system .

  • Page 128: Cleaning Heat Exchanger Flue Side

    (Item 10) to c . Disconnect wire harness connected to gas valve, the low the heat exchanger. [Four (4) nuts (Simplicity 110), five voltage wire harness connected to the blower, and the (5) nuts (Simplicity 150), six (6) nuts (Simplicity 199) .] high voltage wire harness connected to the blower High Voltage jumper harness .

  • Page 129: Reinstall Components

    SIMPLICITY gas-fired water boiler – boiler manual Cleaning Heat Exchanger Flue Side (continued) Inspect and Clean the Burner 2 . Reinstall the burner (Item 14), burner insulation (Item 16 and burner gasket (Item 15) on to the cover plate (Item 10) . See Figure 99, page 131 part G .
  • Page 130 SIMPLICITY gas-fired water boiler – boiler manual Cleaning Heat Exchanger Flue Side (continued) Legend for Figure 98 and Figure 99, page 131 11 . Reinstall the air inlet silencer (Item 1) by pressing it onto the venturi air inlet . Rotate into the normal vertical position (see A.
  • Page 131 SIMPLICITY gas-fired water boiler – boiler manual Cleaning Heat Exchanger Flue Side (continued) Figure 99 Accessing the burner , heat exchanger, blower assembly and venturi removal . (See Legend, page 130) . Part Number 550-143-073/0924...

  • Page 132: Cleaning Dhw And Brazed Plate Heat Exchanger

    SIMPLICITY gas-fired water boiler – boiler manual Cleaning DHW and Brazed Plate Heat Exchanger Procedure for Chemical Cleaning of DHW Circuit Hot Water Can Scald! Carefully read and follow the instructions contained . y Consumer Product Safety Commission and some Chemical cleaning and maintenance must be carried out states recommend domestic hot water temperature of by professionally qualified personnel, in compliance with...
  • Page 133 SIMPLICITY gas-fired water boiler – boiler manual Cleaning DHW and Brazed Plate Heat Exchanger (continued) Figure 101 Domestic water circuit cleaning diagram Actions for Chemical Cleaning of instructions Domestic Hot Water Circuit (Refer to Figure 97) 1 . Shut down the boiler: a .
  • Page 134 SIMPLICITY gas-fired water boiler – boiler manual Cleaning DHW and Brazed Plate Heat Exchanger (continued) Figure 103 Removal of brazed plate heat exchanger by Before Servicing Brazed Plate Heat loosening the two (2) screws . Exchanger Assembly 1 . Cool down boiler and brazed plate heat exchanger assembly .

  • Page 135: Cleaning/Maintenance For Domestic Water Inlet & Outlet

    SIMPLICITY gas-fired water boiler – boiler manual Cleaning/Maintenance for Domestic Water Inlet & Outlet Manifolds Brazed Plate Heat Exchanger Reinstalled Cleaning & Maintenance for Domestic Water Inlet Manifold (Refer to page 135) 1 . Follow “To turn off Gas Appliance” instructions on boiler and Four (4) new gaskets must be placed in the DHW inlet and Operating instructions and procedures 1-3 on page 134 DHW return plate connections to seal brazed plate heat...
  • Page 136 SIMPLICITY gas-fired water boiler – boiler manual Cleaning/Maintenance for Domestic Water Inlet & Outlet Manifolds (continued) 9 . Reinstall shutter/spacer into the Domestic Water Outlet Manifold, but do not tighten part . 12 . Open valves of the domestic cold water inlet and the domestic hot water outlet .

  • Page 137: Troubleshooting

    SIMPLICITY gas-fired water boiler – boiler manual Section 6 Troubleshooting VERIFY PROPER OPERATION AFTER SERVICING Before Troubleshooting – Before calling for troubleshooting assistance, record the boiler size and Consumer Protection (CP) number 1 . See page 3 for tools and kits recommended for (located on the left side exterior of the boiler jacket).

  • Page 138: Checking Temperature Sensors

    SIMPLICITY gas-fired water boiler – boiler manual Troubleshooting Check Control Fuses Figure 109 Control fuses ALWAYS check control fuses before replacing the control or any major components (blower, etc .) . If one of these fuses is blown, it can prevent the control or other components from operating . 1 .
  • Page 139 SIMPLICITY gas-fired water boiler – boiler manual Troubleshooting (continued) Make sure to determine the causes of outages . Do not leave the boiler operating without a complete diagnosis . Control Fault Indications 1 . The control provides diagnostic information for both 2 .

  • Page 140: Reset To Factory Default

    SIMPLICITY gas-fired water boiler – boiler manual Troubleshooting (continued) Restart Wizard Reset to Factory Default Pressing the Enter Button will erase user specific parameter settings and take the user back through Record all current Boiler, System and DHW settings before the wizard .
  • Page 141 SIMPLICITY gas-fired water boiler – boiler manual Troubleshooting (continued) Figure 112 Troubleshooting suggestions – Fault displays, diagnostics and corrective actions Faults Display Condition Diagnostics Corrective Action(s) Nothing shown Control is not receiving Check wiring for short circuit Correct wiring per wiring diagram including connection of on display screen 24V power .
  • Page 142 SIMPLICITY gas-fired water boiler – boiler manual Troubleshooting (continued) Figure 113 Troubleshooting suggestions – Fault displays, diagnostics and corrective actions Faults Display Condition Diagnostics Corrective Action(s) Occurs if internal low water Manual reset of control if Check for low water condition in system . Repair system as necessary . LWCO OPEN cutoff contacts open.
  • Page 143 SIMPLICITY gas-fired water boiler – boiler manual Troubleshooting (continued) Figure 114 Troubleshooting suggestions – Fault displays, diagnostics and corrective actions Faults Display Condition Diagnostics Corrective Action(s) Occurs if manual or Automatic external limit Is there an external safety device connected? If yes, trouble shoot MANUAL LIMIT automatic reset limit will reset 2½...
  • Page 144 SIMPLICITY gas-fired water boiler – boiler manual Troubleshooting (continued) Figure 115 Troubleshooting suggestions – Fault displays, diagnostics and corrective actions Faults Display Condition Diagnostics Corrective Action(s) IGN FAULT 1 Boiler went through 5 Automatically resets after Check condensate trap for blockage allowing ignition attempts and never 1 hour or can be reset by condensate to accumulate inside heat exchanger .
  • Page 145 SIMPLICITY gas-fired water boiler – boiler manual Troubleshooting (continued) Figure 116 Troubleshooting suggestions – Fault displays, diagnostics and corrective actions Faults Display Condition Diagnostics Corrective Action(s) DHW OUT > BLR OUT DHW Outlet > Boiler Outlet Clears when the DHW Outlet Ensure appropriate water flow is being delivered by + 10°F and burner has sensor <...
  • Page 146 SIMPLICITY gas-fired water boiler – boiler manual Troubleshooting (continued) Figure 117 Troubleshooting suggestions – Fault displays, diagnostics and corrective actions Faults Display Condition Diagnostics Corrective Action(s) WRONG J6 Voltage Configuration Clears when correct jumper Ensure the J6 connector is firmly inserted. jumper on J6 installed configuration is installed on J6.
  • Page 147 SIMPLICITY gas-fired water boiler – boiler manual Troubleshooting (continued) Figure 118 Troubleshooting suggestions – Fault displays, diagnostics and corrective actions Warnings Display Condition Diagnostics Corrective Action(s) Check all the temperature readings of the boiler on the SUPPLY SENSOR Occurs when Supply Clears warning when a valid DIAGNOSTICS - TEMPERATURES menu to determine Sensor are chosen as the...
  • Page 148 SIMPLICITY gas-fired water boiler – boiler manual Troubleshooting (continued) Figure 119 Troubleshooting suggestions – Fault displays, diagnostics and corrective actions Warnings Display Condition Diagnostics Corrective Action(s) OUTDOOR Outdoor temperature sensor Will automatically reset if the Determine which sensors are suspect and measure SENSOR short or OPEN .

  • Page 149: Section 7 - Parts

    . Replacement Part Numbers The Boiler Contains Ceramic Fiber Materials Weil-McLain part numbers are found in this manual and . Use care when in Weil-McLain Boilers and Controls Repair Parts Lists . The boiler contains ceramic fiber materials...

  • Page 150: Accessories And Kits

    Kit for 3" PVC vent and air pipes ..383-500-350 Low Water Cut-Off 511-100-005 System sensor (2) 383-700-371 CONDENSATE HANDLING ACCESSORIES Condensate neutralizer kit 383-500-631 Go to www.weil-mclain.com to locate WM Technologies distributors Part Number 550-143-073/0924...
  • Page 151 Duravent..... . . 3PPS-AD-M Centrotherm ..... 250408100740 Go to www.weil-mclain.com to locate WM Technologies distributors Part Number 550-143-073/0924...

  • Page 152: Replacement Parts

    SIMPLICITY gas-fired water boiler – boiler manual Replacement Parts Figure 122 Jacket parts – Simplicity 110/150/199 (see Figure 123, page 153 for illustration) Item Name Description / contents Part Number Jacket door Jacket door, gaskets and labels 383-200-104 Flue pipe 80mm Polypropylene...
  • Page 153 SIMPLICITY gas-fired water boiler – boiler manual Replacement Parts (continued) Figure 123 Jacket assembly – Simplicity 110/150/199 (see Figure 122, page 152 for part numbers) Go to www.weil-mclain.com to locate WM Technologies distributors Part Number 550-143-073/0924...
  • Page 154 SIMPLICITY gas-fired water boiler – boiler manual Replacement Parts (continued) Figure 124 Heat exchanger parts Simplicity 110/150/199 (see Figure 125, page 155 for illustration) Model Model Model Item Name Part Number 383-700-284 – – Heat exchanger 383-700-285 – – 383-700-286 –...
  • Page 155 SIMPLICITY gas-fired water boiler – boiler manual Replacement Parts (continued) Figure 125 Heat exchanger assembly Simplicity 110/150/199 (see Figure 124, page 154 for part numbers) Go to www.weil-mclain.com to locate WM Technologies distributors Part Number 550-143-073/0924...
  • Page 156 SIMPLICITY gas-fired water boiler – boiler manual Replacement Parts (continued) Figure 126 Combustion components parts Simplicity 110/150/199 (see Figure 127, page 157 for illustration) Model Model Model Item Name Part Number Air silencer, clip and gasket 383-700-294 Blower, gasket and hardware Note: (model 199 only) Must choose correct blower model in control;...
  • Page 157 SIMPLICITY gas-fired water boiler – boiler manual Replacement Parts (continued) Figure 127 Combustion components parts Simplicity 110/150/199 (see Figure 127, page 157 for part numbers) NG40 Blower (Model 110/150) *see Figure 124, page 154 *see Figure 124, page 154 NG150 Blower...
  • Page 158 SIMPLICITY gas-fired water boiler – boiler manual Replacement Parts (continued) Figure 128 Combi water piping for Simplicity 110/150/199 (see Figure 129, page 159 for illustration) Item Name Description / contents Part Number Pipe - water top 383-200-126 Condensate drain tube...
  • Page 159 SIMPLICITY gas-fired water boiler – boiler manual Replacement Parts (continued) Figure 129 Combi water piping for Simplicity 110/150/199 (see Figure 128, page 158 or Figure 126, page 156 for part numbers) 260c Model 110/150 Manifold Configuration 260b Model 199 260a...
  • Page 160 SIMPLICITY gas-fired water boiler – boiler manual Replacement Parts (continued) Figure 130 Controls and electrical components - Simplicity 110/150/199 (see Figure 131, page 161 for illustration) Item Name Description / contents Part Number Flue temperature sensor & grommet One (1) sensor & grommet...
  • Page 161 SIMPLICITY gas-fired water boiler – boiler manual Replacement Parts (continued) Figure 131 Controls and electrical assemblies - Simplicity 110 /150/199 (see Figure 130, page 160 for part numbers) Go to www.weil-mclain.com to locate WM Technologies distributors Part Number 550-143-073/0924...
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  • Page 163: Dimensions

    – boiler manual Section 8 Service Information Dimensions Dimensional data – Simplicity 110/150/199 (all dimensions in inches) Figure 132 1) Boiler Out Tapping – ¾" Male NPT (110/150), 1" Male NPT (199) 2) Boiler In Tapping – ¾" Male NPT (110/150), 1"...

  • Page 164: Ratings

    3. Net AHRI ratings are based on net installed 5. Ratings shown are for sea level applications has determined that Simplicity 110, 150 and radiation of sufficient quantity for the only . For altitudes from sea level to 2,000 feet...
  • Page 165 SIMPLICITY gas-fired water boiler – boiler manual Ratings – Simplicity Boilers (continued) Simplicity Figure 134 Engineering Data – boilers 110/150/199 Electrical Vent/air pipe Shipping Operating Water Water flow rate service size: weight weight content per boiler required (Provide a separate vent for Boiler Amps Pounds...

  • Page 166: Ratings - Fcc Statement Of Compliance

    SIMPLICITY gas-fired water boiler – boiler manual Ratings – FCC Statement of Compliance Figure 136 FCC information This device complies with Part 15 of the FCC Rules . Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may Assembled From tested cause undesired operation .

  • Page 167: Read Configuration Settings

    SIMPLICITY gas-fired water boiler – boiler manual Read Configuration Settings Bluetooth Connection Figure 137 Menu screen To access configuration settings, connect to Bluetooth. 1 . Press the <BLUETOOTH> icon . See Figure 137 . 2 . Toggle the Bluetooth Enabled by pressing EDIT and using arrows to change selection, then pressing ENTER .
  • Page 168 SIMPLICITY gas-fired water boiler – boiler manual Read Configuration Settings (continued) Figure 140 WM ProTools app navigation “WM BOILER NAME” “WM BOILER NAME” 230113 Part Number 550-143-073/0924...

  • Page 169: Maintenance Log

    SIMPLICITY gas-fired water boiler – boiler manual Maintenance Log High fire / Date Stack Temp Action Technician Low Fire Part Number 550-143-073/0924...
  • Page 170 SIMPLICITY gas-fired water boiler – boiler manual Notes Part Number 550-143-073/0924...
  • Page 171 SIMPLICITY gas-fired water boiler – boiler manual Notes Part Number 550-143-073/0924...
  • Page 172 SIMPLICITY gas-fired water boiler – boiler manual WM Technologies, LLC 500 Blaine Street Michigan City, IN 46360-2388 weil-mclain.com...

This manual is also suitable for:

Simplicity 150Simplicity 199Simplicity 110-cSimplicity 150-cSimplicity 199-c