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Weil-McLain Evergreen 299 User Manual

Weil-McLain Evergreen 299
132 pages
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This manual must only be used by a qualified heating installer/service technician. Read all instructions, includ-
ing 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.
s)NSTALLATION
s3TARTUP
s-AINTENANCE
s0ARTS
Boiler Manual
Part number 550-100-131/0715
CONDENSING GAS BOILER
220/299/300/399

Table of Contents

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Weil-McLain Evergreen 299 Specifications

General IconGeneral
ModelEvergreen 299
Fuel TypeNatural Gas or Propane
Input BTU/hr299, 000
Output BTU/hr285, 000
Vent TypeDirect Vent
Modulation Ratio5:1
Heat Exchanger MaterialStainless Steel
Ignition TypeElectronic Ignition
TypeGas Boiler
Efficiency95%
DimensionsSee specific model data
WeightSee specific model data
VentingPVC or CPVC

Summary

General Safety Warning

Installer and Technician Responsibilities

Manual must be used by qualified installer/technician. Failure to comply can cause injury or death.

The Evergreen Gas-fired water boilers

Evergreen Control Overview

Control can operate single or multiple boilers, coordinating heating circuits and priority levels.

Evergreen Control WIZARD

Wizard guides through step-by-step setup for chosen application. Context-sensitive help available.

Please Read Before Proceeding

Hazard Definitions

Defines terms like DANGER, WARNING, CAUTION, NOTICE for risk communication.

Massachusetts Installation Requirements

Specific requirements for installations within the Commonwealth of Massachusetts.

Boiler Location

Flooring and Foundation Requirements

Guidelines for boiler placement, foundation, and clearance from combustibles.

Residential Garage Installation Precautions

Special precautions for installing boilers in residential garages.

Vent and Air Piping Requirements

Details on requirements for the special pressurized venting system.

Prepare Boiler Location

Flooring and Foundation

Ensuring proper flooring and foundation for boiler installation.

Wall-mounting the Boiler

Instructions and requirements for wall-mounting the boiler using a kit.

Boiler Hydrostatic Test

Install Pipe Fittings for Relief Valve and P/T Gauge

Steps for installing necessary fittings for hydrostatic testing.

Fill and Pressure Test the System

Procedure for filling the boiler and system with water and performing the test.

Gas Conversions

Prepare Boiler for Propane

Instructions for converting the boiler for propane operation, including venturi.

Propane Operation and Venturi Verification

Details on operating the boiler with propane and verifying venturi installation.

Gas Piping — Sizing Gas Lines

Natural Gas Piping Sizing

Guidelines for sizing natural gas piping based on input and length.

Propane Gas Piping Sizing

Guidelines for sizing propane gas piping based on supply pressure.

Venting/air piping — general

Combustion Air Contamination Warnings

Hazards associated with contaminated combustion air and its sources.

Existing Vent Test Procedure

Procedure to test the common vent system after removing an old boiler.

Commonwealth of Massachusetts Installations

Sidewall Vent Termination Requirements

Requirements for sidewall horizontally-vented equipment in MA.

Manufacturer Venting System Requirements

Manufacturer's responsibility for providing venting instructions and parts.

Vent Termination Requirements

Minimum Clearances for Vent Terminations

Specifies minimum distances for vent terminations from walkways and buildings.

Prohibited Vent Termination Locations

Locations where vent terminations are not permitted due to potential hazards.

Boiler room air openings

Air Opening Size Requirements (With Other Appliances)

Specifies air opening sizes when other appliances are in the room.

Air Opening Size Requirements (Without Other Appliances)

Specifies air opening sizes when no other appliances are in the room.

Exception for Large Spaces

Details special exceptions for air openings in large spaces.

DIRECT VENT — Sidewall with separate pipes

Installation Sequence: Separate Pipes Sidewall

Step-by-step instructions for installing sidewall vent with separate pipes.

Allowable Vent/Air Pipe Materials & Lengths

Lists approved materials and maximum lengths for vent and air piping.

Determine Termination Location

Guidelines for selecting the proper location for sidewall terminations.

DIRECT VENT — Sidewall with W-M vent/air plate

Installation Sequence: W-M Sidewall Vent/Air Plate

Step-by-step instructions for installing W-M sidewall vent/air plate.

Determine Termination Location

Guidelines for selecting the proper location for sidewall terminations.

DIRECT VENT — Sidewall concentric

Installation Sequence: Concentric Horizontal

Step-by-step instructions for concentric horizontal sidewall termination.

Determine Termination Location

Guidelines for selecting the proper location for sidewall terminations.

DIRECT VENT — Vertical with separate pipes

Installation Sequence: Vertical Vent/Sidewall Air

Step-by-step instructions for vertical vent and sidewall air termination.

Prepare Roof Penetrations

Procedures for preparing roof penetrations for vent and air piping.

DIRECT VENT — Vertical concentric

Installation Sequence: Concentric Vertical

Step-by-step instructions for concentric vertical termination.

Determine Termination Location

Guidelines for selecting the proper location for vertical terminations.

Concentric termination, typical (sidewall or vertical)

Assembling Concentric Termination

Instructions for assembling the concentric termination kit.

DIRECT VENT — Vertical vent / sidewall air

Installation Sequence: Vertical Vent/Sidewall Air

Step-by-step instructions for vertical vent and sidewall air termination.

Prepare Vent Pipe Penetration

Procedure for preparing the vent pipe penetration through walls/floors.

Vent and air piping and boiler connections

Installing Vent and Air Piping

Guidance on installing vent and air piping from boiler to termination.

Install water piping

Boiler Loop Pipe Sizing

Recommendations for sizing the boiler loop piping for space heating.

General Piping Information

General guidelines and considerations for system piping.

System water piping methods

Simplified Pipe/Circulator Selection

Method for selecting pipe sizes and circulators based on circuit load.

Install relief valve

Connecting to Heating Coils

Considerations for connecting to heating coils in air handling units.

Expansion tank

Diaphragm- or Bladder-Type Expansion Tank

Piping suggestions for diaphragm or bladder-type expansion tanks.

Closed-Type Expansion Tank

Piping suggestions for closed-type expansion tanks.

System piping - Single Boiler Systems

ZONE VALVE zoning — primary/secondary

Configuration for zone valve systems with primary/secondary boiler loop.

Domestic Hot Water (DHW) tank, if used

Connecting a DHW tank as a zone or direct connection.

Controlling the Circulators

How the control manages boiler and system circulators.

DHW as a zone — CIRCULATOR zoning primary/secondary

Expansion Tank Required for DHW Systems

Requirement for a system expansion tank when connecting DHW.

Controlling Circulators for DHW Priority

How the control manages circulators for DHW priority operation.

WATER CHILLER systems — ZONE VALVES primary/secondary

Expansion Tank Required for Chiller Systems

Requirement for a supplementary expansion tank for chiller systems.

Domestic Hot Water (DHW) tank, if used

Connecting a DHW tank for chiller systems.

Controlling the Circulators in Chiller Systems

Managing circulators in systems with water chillers.

Install condensate line

Prepare Condensate Fittings

Steps for preparing PVC fittings and gasket for condensate line.

Connect Condensate Trap Line and Fittings

Instructions for connecting the condensate trap line.

Gas piping

Connect Gas Supply Piping

Steps for connecting the gas supply piping to the boiler.

Check Gas Supply Piping

Procedures for checking gas connections for leaks and safety.

Field wiring

Wire Entrances and Installation Requirements

Guidelines for routing and sealing wires into the control cabinet.

Required Wiring Connections

Essential wiring connections for boiler operation.

Optional Wiring Connections

Wiring for additional system components like sensors and limits.

120 VAC Power Supply and Outputs

120 VAC Power Supply Requirements

Details on providing and sizing the 120 VAC power supply.

120 VAC Outputs 1, 2 & 3

Information on using the 120VAC outputs for circulators or other devices.

Boiler Circulator and Input Wiring

120 VAC to Boiler Circulator Wiring

Wiring instructions for connecting the boiler circulator.

Inputs 1, 2 and 3 Wiring

Wiring for thermostats, aquastats, and other system inputs.

System Supply and Return Temperature Sensors

Outdoor Temperature Sensor Installation

Instructions for installing the outdoor temperature sensor.

External Limits Wiring (Optional)

Wiring for optional external limit controls.

Low Water Cutoff, Alarm, and Heat Demand Wiring

Low Water Cutoff Wiring

Wiring instructions for the low water cutoff device.

Alarm Contacts Wiring (Optional)

Connecting terminals for remote alarm notification.

Additional Heat Demand Contacts Wiring

Wiring for activating other heat sources.

Proof of Closure (Flow Switch/CAD) Wiring

0–10 VDC Remote Target Input Wiring

Connecting a remote analog input to regulate supply temperature.

Wiring diagram — schematic

Wiring diagram — ladder

Zoning with the EVG Control

Zoning with Circulators

Suggested applications for zoning with circulators.

Zoning with Zone Valves

Suggested applications for zoning with zone valves.

Evergreen Control operation

Evergreen Control Setup

Steps for setting up the Evergreen control using WIZARD or manual entry.

Control Features Overview

Highlights key features like priority levels, display, and outputs.

Sequence of Operation

Summary of the boiler's operating sequence based on control display statuses.

EVG control Priorities & Input/Outputs

Setting Up the Boiler

Steps for initial boiler setup and accessing contractor menus.

Evergreen Control WIZARD

Guides through step-by-step setup for chosen application.

Outdoor Reset Operation

Remote Target Operation (0–10VDC Input)

Using a remote analog input to regulate supply temperature.

Remote Modulation Operation (0–10v Input)

Using 0-10VDC input for remote boiler modulation.

Evergreen control display screens and typical navigation

Screen Colors and Status Indicators

Explains display colors and what they indicate during operation.

Status Screen Navigation

Details on navigating the status screen and available information.

EXPRESS SETUP — EXAMPLE A

Multi-zone Space Heating with Circulators

Setup for multi-zone heating with circulators and DHW.

Boiler Settings Configuration

Required and optional settings for Express Setup Example A.

EXPRESS SETUP — EXAMPLE B

2- or 3-zone Space Heating with Circulators

Setup for 2- or 3-zone heating with circulators and DHW.

Boiler Settings Configuration

Required and optional settings for Express Setup Example B.

EXPRESS SETUP — EXAMPLE C

Multi-zone Space Heating with Zone Valves

Setup for multi-zone heating with zone valves and DHW.

Boiler Settings Configuration for Zone Valves

Required and optional settings for zone valve setups.

Available control settings and system presets

System Types Available in BASIC MODE

Lists system types and their default factory settings.

Contractor Menu Navigation

Overview of menu navigation for contractor settings.

CONTRACTOR menus

USER MODE Setting

Setting the user mode to BASIC or ADVANCED.

BOILER SETTINGS Menu

Accessing and adjusting boiler model, altitude, and sensor settings.

BOILER SETTINGS menu, BASIC mode

Evergreen BASIC Mode Boiler Settings Options

Details on available settings like LP Gas, WWSD Temp, and Freeze Protect.

PRIORITY 1, 2, 3 menus, BASIC mode

Assigning Inputs to Priorities

Lists inputs assigned to each priority level.

System Type Selection for Each Priority

Choosing system type (e.g., FAN-COIL, RADIANT) for each priority.

ASSIGN INPUTS menu, BASIC mode

Input Assignment Overview

Explains priority levels and input/output assignments.

Assigning Input 1, 2, and 3 to Priorities

Steps to assign system type and priority to inputs.

DIAGNOSTIC menu

Temperatures Diagnostics

Displays current temperatures for boiler sensors and system.

Inputs Diagnostics

Shows status of boiler inputs like thermostats and sensors.

Outputs Diagnostics

Displays status of boiler outputs like circulators and gas valve.

Runtime Diagnostics

Shows burner runtime, rotation time, and ignition counts.

DIAGNOSTICS menu (continued)

Past Errors Log

View historical fault data, lockout history, and error details.

Manual Test Mode Operation

Allows manual control of boiler functions for testing and diagnostics.

MAINTENANCE, DATE AND TIME menus

Maintenance Information Entry

Enter contractor details, installation date, and maintenance reminders.

Setting Date and Time

Set current date and time for accurate logging and reminders.

Startup — fill the system

Tools Required for Start-up

List of essential tools needed for initial boiler start-up.

Clean System to Remove Sediment

Procedure for flushing the system to remove sediment before filling.

Water Chemistry Requirements

Ensuring proper water pH, chloride, and inhibitor levels for boiler longevity.

Startup — final checks

Check Thermostat Circuits

Verify thermostat wiring and voltage for proper operation.

Inspect/Fill Condensate System

Inspecting and filling the condensate trap and lines.

Check for Gas Leaks

Safety procedure for detecting gas leaks before and during operation.

Final Checks Before Starting Boiler

Checklist of critical items before initiating boiler start-up.

Check combustion & manual controls

Propane Boilers — Verify Conversion

Ensuring the boiler is correctly converted for propane firing.

DO NOT Attempt to Measure Gas Valve Outlet Pressure

Warning against adjusting or measuring gas valve outlet pressure.

Gas Valve Adjustment

High Fire Adjustment

Adjusting throttle screw for optimal CO2 at high fire.

Low Fire Adjustment

Adjusting offset screw for optimal CO2 at low fire.

Check-out/startup verification

Adjust and Test Boiler Controls

Setting and verifying operation of boiler control functions.

Have the Following Been Done?

Checklist of completed installation and setup tasks.

Before Leaving: Installation Certificate

Final steps including filling out the installation certificate.

Annual startup and general maintenance

Service and Maintenance Schedules

Provides schedules for annual service technician and owner maintenance.

Annual startup

First-Year Special Inspection Procedures

Essential checks and part replacements for the first year of operation.

Handling Ceramic Fiber Materials Safely

Guidelines for safe handling of ceramic fiber materials.

Annual startup (continued)

Check All Piping for Leaks

Procedure for inspecting all water, gas, vent, and air piping for leaks.

Check Expansion Tank(s)

Verifying expansion tank type, size, and waterlogging.

Annual startup (continued)

Remove and Inspect Ignition Electrode Assembly

Procedure for inspecting and cleaning the ignition electrode assembly.

Remove and Inspect Flame Sense Rod and Wiring

Procedure for inspecting and cleaning the flame sense rod assembly.

Remove, Inspect, and Clean the Burner

Steps for removing, cleaning, and inspecting the burner.

Inspect Combustion Chamber and Refractory

Visual inspection of the heat exchanger interior and refractory condition.

Annual startup (continued)

Check Burner Flame and Flame Signal

Procedure for checking burner flame quality and signal strength.

Check Blower Speeds

Verifying blower speeds against specifications for proper operation.

Manual Test Mode for Single and Multiple Boilers

Single Boiler Test Mode

Instructions for operating a single boiler in manual test mode.

Check Boiler Relief Valve

Procedure for inspecting and verifying the boiler relief valve.

Troubleshooting

Verify Proper Operation After Servicing

Steps to ensure proper operation after maintenance or servicing.

Tools and Kits Recommended for Troubleshooting

List of tools and kits necessary for troubleshooting tasks.

Check Control Fuses

Checking Temperature Sensors

Methods for testing temperature sensors for proper resistance.

Control fault indications

Control Fault Indications and Reset Procedures

Understanding control display behavior during faults and reset methods.

Troubleshooting suggestions for Evergreen™ boilers — Control Error Condition Log

How to Read Lockout Histories

Guidance on interpreting the last three lockout history records.

How to Clear All Lockout Histories

Procedure for clearing all lockout histories from the control.

Troubleshooting suggestions for Evergreen™ boilers — Display faults, diagnostics and corrective actions

Nothing Shown on Display Screen

Troubleshooting steps when the display is blank or non-responsive.

TEMP RISE TOO QUICKLY Fault

Diagnosing and resolving rapid temperature rise issues.

Troubleshooting suggestions for Evergreen™ boilers — Display faults, diagnostics and corrective actions

LOW WTR CUTOFF OPEN Fault

Troubleshooting low water cutoff errors.

SUPPLY WATER TEMPERATURE TOO HIGH Fault

Diagnosing and resolving high supply water temperature issues.

Troubleshooting suggestions for Evergreen™ boilers — Display faults, diagnostics and corrective actions

LIMIT OPEN Fault

Addressing errors related to open limit switches.

GAS VALVE FAULT

Troubleshooting gas valve errors and lockouts.

Troubleshooting suggestions for Evergreen™ boilers — Display faults, diagnostics and corrective actions

IGNITION FAULT

Diagnosing and resolving ignition failure errors.

OUTDOOR SENSOR ERROR

Troubleshooting issues with the outdoor temperature sensor.

Maintenance

General Maintenance Procedures

Routine tasks for maintaining the boiler system.

Cleaning the Heat Exchanger (Water Side)

Procedure for cleaning the heat exchanger's water side.

Disconnect Power and Reinstall Door

Safety steps before servicing and reinstalling the boiler door.

Cleaning heat exchanger flue side

Tools Required for Flue Side Cleaning

List of tools needed for cleaning the heat exchanger flue side.

Remove and Inspect Ignition Electrode Assembly

Procedure for removing and inspecting the igniter assembly.

Inspect Combustion Chamber and Refractory

Visual inspection of the combustion chamber and refractory condition.

Cleaning heat exchanger flue side (continued)

Remove Components to Access Heat Exchanger Flue Side

Steps to remove parts for accessing the heat exchanger's flue side.

Remove and Discard Refractory

Procedure for removing the refractory and replacing the burner gasket.

Reinstall heat exchanger cover plate and refractory

Reinstall Heat Exchanger Cover Plate

Steps for reinstalling the heat exchanger cover plate and refractory.

Reinstall components

Reinstall the Burner Assembly and Related Parts

Instructions for reinstalling the burner, igniter, and flame sense rod.

Replacement parts

Obtain Parts Only Through Weil-McLain

Guidance on ordering genuine Weil-McLain replacement parts.

Handling Ceramic Fiber Materials

Safety precautions for handling ceramic fiber materials.

Miscellaneous parts and kits

Vent and Air Piping Kits

Details on various vent and air piping kits available.

Jacket parts — Evergreen™ 220/299/300/399

Front Door and Related Components

List and description of front door and gasket kit parts.

Heat exchanger parts Evergreen™ 220

Heat Exchanger Assembly Components

List of parts for the Evergreen 220 heat exchanger assembly.

Heat exchanger parts Evergreen™ 299/300/399

Heat Exchanger Assembly Components (299/300/399)

List of parts for Evergreen 299/300/399 heat exchanger assembly.

Piping components for Evergreen™ 220/299/300/399

Gas Valve and Venturi Components

Parts related to the gas valve and venturi assembly.

Blower and Silencer Components

Parts for the blower and inlet air silencer assembly.

Controls & electrical components — Evergreen™ 220/299/300/399

Temperature Sensors and Transformer

List of temperature sensors and the transformer part numbers.

Control Module and Circuit Boards

Part numbers for the control module and circuit boards.

Dimensions

Dimensional Data for Evergreen™ Models

Provides overall dimensions for Evergreen 220/299/300/399 models.

Ratings

AHRI Certified Ratings

Performance ratings certified by AHRI for Evergreen boilers.

DOE Ratings and Engineering Data

DOE efficiency and capacity ratings, including derates.

Ratings — Multiple boilers

Ratings and Engineering Data for Multiple Boilers

Performance data for multiple Evergreen boiler installations.

Installation and Service Certificate

Certified Installation Checklist

Installer must certify that instructions were followed and system is correct.

Installation and Gas Boiler Data Collection Sheet

Boiler Settings Data

Fields for recording boiler settings and parameters.

Priority Settings Data

Fields for recording priority settings for system operation.

Installation and Gas Boiler Data Collection Sheet

Priority 2, 3, and 4 Settings

Recording settings for priority levels 2, 3, and 4.

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