Weil-McLain Evergreen 220 Advanced Manual
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Weil-McLain Evergreen 220 Advanced Manual

Condensing gas boiler
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See also: User's Information Manual , Instruction Manual
™
CONDENSING GAS BOILER
220/299/300/399
Advanced Manual
Multiple boiler installation & settings + Single boiler advanced settings
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.
Part number 550-100-160/0715

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Summary of Contents for Weil-McLain Evergreen 220

  • Page 1 ™ CONDENSING GAS BOILER 220/299/300/399 Advanced Manual Multiple boiler installation & settings + Single boiler advanced settings 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.

  • Page 2: Table Of Contents

    — Advanced Manual CONDENSING GAS BOILER ™ Contents Follow all instructions for installation, start-up and servicing in the Evergreen Evergreen Control — Advanced mode ..3 boiler manual. Use this Advanced Manual for multiple Multiple boiler installations .

  • Page 3: Evergreen Control - Advanced Mode

    — Advanced Manual CONDENSING GAS BOILER ™ Evergreen Control — Advanced mode Multiple Boiler (Network) Features: Evergreen control setup (see next page for explanation of Priorities) 1. Set control parameters using the WIZARD option provided Create a network of up to 8 boilers using built-in con- on initial start-up or manually enter parameters using control trols.

  • Page 4: Sequence Of Operation

    — Advanced Manual CONDENSING GAS BOILER ™ Evergreen Control — ADVANCED mode (continued) EVG control Priorities & Input/Outputs Multiple boiler operation For heating installations with multiple systems, the EVG The Evergreen boiler has an auto detection feature for mul- control uses to determine the order of opera- PRIORITIES tiple boiler networks.
  • Page 5 — Advanced Manual CONDENSING GAS BOILER ™ Evergreen Control — ADVANCED mode (continued) SUPPLY MIN Figure 1 Outdoor reset operation 1. SUPPLY MIN should equal the desired minimum supply water temperature for the system. 2. This could be set as low as 70°F, which would supply “zero heat” when outdoor temperature is 70°F, because supply water temp would equal room temp.

  • Page 6: Multiple Boiler Installations

    — Advanced Manual CONDENSING GAS BOILER ™ Multiple boiler installations Placing multiple boilers Figure 3 Side-to-side mounting of multiple Evergreen boilers 1. Locate multiple boilers with spacings shown in Figure 3. Provide the indicated clearances around boilers for ac- cess and servicing. If recommended dimensions are not possible, provide at least the minimum clearances given in the Evergreen boiler manual.
  • Page 7 — Advanced Manual CONDENSING GAS BOILER ™ Multiple boiler installations (continued) Easy-Fit® piping installation Maximum connected load per manifold: 1. Main header and Easy-Fit® Manifold pipe sizing. 2-inch manifold — 450 MBH a. Size system piping as required for the flow. 3-inch manifold —...
  • Page 8 ™ Multiple boiler installations (continued) Figure 7 Piping schematic — typical piping for multiple Evergreen boilers, using Weil-McLain Easy-Fit manifolds (adjust boiler connections as required for other boiler models) Legend — Figure 7 1 Flow/check or spring check valve. 13 Cold water supply.

  • Page 9: Fast-Track Setup - Requirements By Boiler

    — Advanced Manual CONDENSING GAS BOILER ™ Fast-Track Setup — Requirements by Boiler Single boilers: PRIORITY 1, PRIORITY 2, PRIORITY 3. Fast-Track Setup Evergreen control takes advantage of the Ever- DHW circuit in system — For high-demand DHW Fast-Track Setup green control to provide the shortest possible method WIZARD...

  • Page 10: Fast-Track Setup - Steps

    — Advanced Manual CONDENSING GAS BOILER ™ Fast-Track Setup — Steps must be used when using the procedure. This is necessary to ensure that all required settings WIZARD Fast-Track Setup Evergreen are made. In addition, all instructions in the boiler manual must be followed completely. Failure to comply could result in severe personal injury, death or substantial property damage.

  • Page 11: Fast-Track Setup - The Wizard

    — Advanced Manual CONDENSING GAS BOILER ™ Fast-Track Setup — The WIZARD is available only on initial setup of the boiler. T h e l e a d s Context-sensitive help WIZARD W I Z A R D It cannot be accessed later. If the is accidentally through a step-by-step is available to explain...
  • Page 12 — Advanced Manual CONDENSING GAS BOILER ™ Fast-Track Setup — The WIZARD (continued) If TARGET ADJUST = ODT – Read only (assigned in – means the outdoor temper- SYSTEM TYPE OD RESET MAX E V E R G R E E N W I Z A R D previous step).
  • Page 13 — Advanced Manual CONDENSING GAS BOILER ™ Fast-Track Setup — The WIZARD (continued) The timings set on this screen prevent the boiler E V E R G R E E N W I Z A R D from operating too long on one demand if L O C A L N E T W O R K another demand is present.

  • Page 14: Fast-Track Setup - Typical Application A

    ™ Fast-Track Setup — Typical Application A Figure 8 Typical Application A — Piping layout — typical piping for multiple Evergreen boilers, using Weil-McLain Easy-Fit manifolds (2-boiler system) (adjust boiler connections as required for other boiler models) NOTICE: This method does not provided DHW redundancy.
  • Page 15 — Advanced Manual CONDENSING GAS BOILER ™ Fast-Track Setup — Typical Application A (cont.) Boiler Model, Altitude and Fuel Type are critical settings. Failure to set correctly could result in severe personal injury, death or substantial property damage. Figure 9 Typical Application A —...

  • Page 16: Fast-Track Setup - Typical Application B

    140 – 290 gpm Legend — Figure 10 1 Flow/check or spring check valve. 21 Indirect-fired storage water heaters (Weil-McLain Aqua Plus Line shown) — This piping is 2 Isolation valves (when used). Example is shown with each water heater having its own circulator. Alternate: suggested only.
  • Page 17 — Advanced Manual CONDENSING GAS BOILER ™ Fast-Track Setup — Typical Application B (cont.) Boiler Model, Altitude and Fuel Type are critical settings. Failure to set correctly could result in severe personal injury, death or substantial property damage. Figure 11 Typical Application B — multiple boiler system — setup requirements (parameters not listed below can be left at factory default settings unless special needs indicate different settings) Boiler Wiring and Control Settings (See Figure 10, page 16 for items referenced)

  • Page 18: Fast-Track Setup - Typical Application C

    — Advanced Manual CONDENSING GAS BOILER ™ Fast-Track Setup — Typical Application C Figure 12 Typical Application C — Piping layout — typical piping for multiple Evergreen boilers, using isolation exchanger (adjust boiler connections as required for other boiler models) Use isolation heat exchanger for: 1.
  • Page 19 — Advanced Manual CONDENSING GAS BOILER ™ Fast-Track Setup — Typical Application C (cont.) Boiler Model, Altitude and Fuel Type are critical settings. Failure to set correctly could result in severe personal injury, death or substantial property damage. Figure 13 Typical Application C — multiple boiler system — setup requirements (parameters not listed below can be left at factory default settings unless special needs indicate different settings) Boiler Wiring and Control Settings (See Figure 12, page 18 for items referenced)

  • Page 20: Field Wiring (See Wiring Diagram, Figure

    — Advanced Manual CONDENSING GAS BOILER ™ Field wiring (see wiring diagram, Figure 15, page 28) Figure 14 Field wiring overview (see Figure 15, page 28 and Figure 16, page 29 for detailed schematic and ladder — For your safety, turn off ELECTRICAL SHOCK HAZARD wiring diagrams) electrical power supply at service entrance panel before making...
  • Page 21 — Advanced Manual CONDENSING GAS BOILER ™ Field wiring (see wiring diagram, Figure 15, page 28) A. 120 VAC Power Supply – REQUIRED Terminal Block T1 (control tray, right front) 1. Provide and install a properly sized fused disconnect or service Determine total load switch as required by applicable codes.
  • Page 22 — Advanced Manual CONDENSING GAS BOILER ™ Field wiring (see wiring diagram, Figure 15, page 28)(continued) C. 120 VAC to Boiler Circulator – REQUIRED Terminal Strip P8 on Pump/Comm Board (control tray, left side) 1. Provides 120 VAC to the boiler circulator at Pump/Comm Board P8 Terminals. 2.
  • Page 23 — Advanced Manual CONDENSING GAS BOILER ™ Field wiring (see wiring diagram, Figure 15, page 28)(continued) E. System supply and return temperature sensors – REQUIRED Terminal Block P14 (EVG control module, left side) 1. Two strap-on temperature sensors are shipped with each boiler. Attach one to the system supply piping and the other to the system return piping.
  • Page 24 1. Install a low water cut-off when required. 2. Wiring Weil-McLain LWCO Kit a. When possible, use the Weil-McLain Low water cut-off kit listed in the Boiler manual replacement parts section. It includes a probe-type low water cut-off and provides a simple harness connection for the wiring.
  • Page 25 — Advanced Manual CONDENSING GAS BOILER ™ Field wiring (see wiring diagram, Figure 15, page 28)(continued) K. 0–10 VDC Remote TARGET input – OPTIONAL Terminal Block P15 #5 & #6 (EVG control module, left side) 1. See illustration at right and Figure 15, page 28 (wiring diagram) for details. 2.
  • Page 26 — Advanced Manual CONDENSING GAS BOILER ™ Field wiring (see wiring diagram, Figure 15, page 28)(continued) L. 0–10 VDC Remote MODULATION input – OPTIONAL Terminal Block P15 #5 & #6 (EVG control module, left side) — Remote modula- Using an external multiple boiler controller tion using an external controller only works with each boiler set up as a SINGLE boiler in the EVG Control setup.
  • Page 27 — Advanced Manual CONDENSING GAS BOILER ™ Field wiring (see wiring diagram, Figure 15, page 28)(continued) N. Proof of closure (flow switch and/or CAD) – OPTIONAL Jumper on Terminal Strip P7 (EVG control, bottom left of center) 1. A flow switch or combustion air damper (CAD) interlock can be configured by clipping the jumper on terminal strip P7.

  • Page 28: Wiring Diagram - Schematic

    — Advanced Manual CONDENSING GAS BOILER ™ Wiring diagram — schematic Figure 15 Evergreen schematic wiring diagram (see Figure 16, page 29 for legend and notes) Part number 550-100-160/0715 – 28 –...

  • Page 29: Wiring Diagram - Ladder

    — Advanced Manual CONDENSING GAS BOILER ™ Wiring diagram — ladder Figure 16 Evergreen ladder wiring diagram (see Figure 15, page 28 for schematic wiring diagram) Part number 550-100-160/0715 – 29 –...

  • Page 30: Zoning With The Evg Control

    — Advanced Manual CONDENSING GAS BOILER ™ Zoning with the EVG Control A. Zoning with CIRCULATORS, suggested applications Multiple space heating zones — Optional DHW direct-piped to one or more boilers 1. Review wiring information on page 21 (120 VAC out- puts) and page 22 (24 VAC inputs).
  • Page 31 — Advanced Manual CONDENSING GAS BOILER ™ Zoning with the EVG Control (continued) B. Zoning with CIRCULATORS, suggested applications WMCR circulator zone controller plus DHW controlled by boiler, Optional DHW 1. Review wiring information on page 21 (120 VAC out- puts) and page 22 (24 VAC inputs).
  • Page 32 — Advanced Manual CONDENSING GAS BOILER ™ Zoning with the EVG Control (continued) C. Zoning with ZONE VALVES, multiple boilers, suggested applications (see EVG Boiler Manual for single boiler suggested applications) Multiple space heating zones with direct-piped DHW on one or more boilers (optional) This suggested application only applies to systems with DHW piped directly to individual boilers.
  • Page 33 — Advanced Manual CONDENSING GAS BOILER ™ Zoning with the EVG Control (continued) D. Zoning with ZONE VALVES, multiple boilers, suggested applications (see EVG Boiler Manual for single boiler suggested applications) WMZV zone valve zone controller plus DHW controlled by boiler, Optional DHW .
  • Page 34 — Advanced Manual CONDENSING GAS BOILER ™ Evergreen Control — INITIAL SCREENS Figure 17 Initial navigation — Accessing CONTRACTOR menus (multiple-boiler screens shown) Part number 550-100-160/0715 – 34 –...

  • Page 35: Control Operation

    — Advanced Manual CONDENSING GAS BOILER ™ Control operation Figure 18 Control sequence of operation Display Control action status (also see Figure 19, page 36) text Check the boiler model listed on the power-up screen. If it is not correct, turn off the boiler. See page 37 for in- POWER structions to change setting.
  • Page 36 — Advanced Manual CONDENSING GAS BOILER ™ Control operation (continued) Figure 19 Evergreen control display screens and typical navigation – Advanced mode, multiple boilers Part number 550-100-160/0715 – 36 –...

  • Page 37: Available Control Settings - Advance Mode

    — Advanced Manual CONDENSING GAS BOILER ™ Available control settings – Advance Mode Figure 20 Evergreen control settings available in ADVANCED MODE (see Boiler Manual for BASIC MODE settings) Menus and Items Default setting Range/options BOILER SETTINGS Menu (page 41) Factory set All Evergreen models available BOILER MODEL...
  • Page 38 — Advanced Manual CONDENSING GAS BOILER ™ Available control settings – Advance Mode (continued) Figure 20 Evergreen control settings available in ADVANCED MODE, continued Menus and Items Default setting Range/options 10% to 99% MIN RATE AUTO AUTO or 100 to 32,000 MBTU’s MAX SYS MBH (Network priorities only) 1 to 8 MIN BOILERS (Network priorities only)

  • Page 39: System Type Presets

    — Advanced Manual CONDENSING GAS BOILER ™ SYSTEM TYPE presets Figure 21 System types available (each option provides factory presets for operating parameters) 8-Character 3-Character Supply Max Blr OD Reset Supply OD Reset Run System System Type Boiler Abbreviation Abbreviation Max °F Temp °F) Min °F...

  • Page 40: Contractor Menus

    — Advanced Manual CONDENSING GAS BOILER ™ CONTRACTOR menus Boiler Model, Altitude and Fuel Type are criti- 1. Access contractor menus by pressing and holding the UP and DOWN arrow keys at the same time for 7 seconds. Failure to set correctly could result in cal settings.

  • Page 41: Boiler Settings Menu

    — Advanced Manual CONDENSING GAS BOILER ™ BOILER SETTINGS menu Boiler Model, Altitude and Fuel Type are criti- 1. Access contractor menus by pressing and holding the UP and cal settings. Failure to set correctly could result in DOWN arrow keys at the same time for 7 seconds. severe personal injury, death or substantial property 2.

  • Page 42: Network Settings Menu

    — Advanced Manual CONDENSING GAS BOILER ™ NETWORK SETTINGS menu Boiler Model, Altitude and Fuel Type are criti- 1. Access contractor menus by pressing and holding the UP and cal settings. Failure to set correctly could result in DOWN arrow keys at the same time for 7 seconds. severe personal injury, death or substantial property 2.

  • Page 43: Rotation And Sequence

    — Advanced Manual CONDENSING GAS BOILER ™ ROTATION AND SEQUENCE Boiler Model, Altitude and Fuel Type are criti- 1. Access contractor menus by pressing and holding the UP and cal settings. Failure to set correctly could result in DOWN arrow keys at the same time for 7 seconds. severe personal injury, death or substantial property 2.
  • Page 44 — Advanced Manual CONDENSING GAS BOILER ™ ROTATION AND SEQUENCE (continued) Figure 26 Evergreen sequencing options — SMART, PARALLEL or SERIES (examples shown for 3-boiler network) SERIES Sequencing PARALLEL Sequencing SMART Sequencing Higher Part-Load Efficiency Quicker Boiler Response Time STAGE 1 – Lead boiler modulates up to a maximum of 100% be- STAGE 1 –...
  • Page 45 — Advanced Manual CONDENSING GAS BOILER ™ ROTATION AND SEQUENCE (continued) Figure 27 Boiler sequencing — adding and dropping boilers Part number 550-100-160/0715 – 45 –...

  • Page 46: Network Boiler Priority Menus

    — Advanced Manual CONDENSING GAS BOILER ™ Network Boiler PRIORITY menus Boiler Model, Altitude and Fuel Type are criti- 1. Access contractor menus by pressing and holding the UP and cal settings. Failure to set correctly could result in DOWN arrow keys at the same time for 7 seconds. severe personal injury, death or substantial property 2.
  • Page 47 — Advanced Manual CONDENSING GAS BOILER ™ Network Boiler PRIORITY menus (continued) Figure 28 Evergreen PRIORITY menus, continued MENU ITEM DESCRIPTION If the boiler outlet temperature approaches [MAX BOILER TEMP – BOILER ON DIFF] before the system supply temperature reaches its target, the control will modulate the MAX BLR TEMP boiler based on the boiler outlet temperature.

  • Page 48: Single Boiler Priority Menus

    — Advanced Manual CONDENSING GAS BOILER ™ Single Boiler PRIORITY menus Boiler Model, Altitude and Fuel Type are criti- 1. Access contractor menus by pressing and holding the UP and DOWN arrow keys at the same time for 7 seconds. Failure to set correctly could result in cal settings.
  • Page 49 — Advanced Manual CONDENSING GAS BOILER ™ Single Boiler PRIORITY menus (continued) Figure 28 Evergreen single boiler PRIORITY menus, continued MENU ITEM DESCRIPTION If the boiler outlet temperature approaches [MAX BOILER TEMP – BOILER ON DIFF] before the system supply temperature reaches its target, the control will modulate the boiler based on MAX BLR TEMP the boiler outlet temperature.

  • Page 50: Assign Inputs Menu

    — Advanced Manual CONDENSING GAS BOILER ™ ASSIGN INPUTS menu Boiler Model, Altitude and Fuel Type are criti- 1. Access contractor menus by pressing and holding the UP and cal settings. Failure to set correctly could result in DOWN arrow keys at the same time for 7 seconds. severe personal injury, death or substantial property 2.

  • Page 51: Aux Pump/Output Options

    — Advanced Manual CONDENSING GAS BOILER ™ AUX PUMP/OUTPUT options Figure 31 AUX PUMP/ OUTPUT operation (accessed in ASSIGN INPUTS menu – see page 50) Option Activation conditions Suggested uses Hot loop for seasonal boilers that are manually Output is always energized whenever the control is powered. shut down at end of season and started up at ALWAYS ON start of heating season.

  • Page 52: Maintenance, Date And Time Menus

    — Advanced Manual CONDENSING GAS BOILER ™ MAINTENANCE, DATE AND TIME menus Figure 33 MAINTENANCE, DATE AND TIME menus — navigation (see Figure 19, page 36 for access information) Maintenance Info Comments Name Contractor name to appear in maintenance reminders and during lockouts Phone Contractor phone number Displays the boiler model selected in the boiler setup...

This manual is also suitable for:

Evergreen 399Evergreen 299Evergreen 300

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