Weil-McLain Evergreen EVG 70 Manual
  1. Manuals
  2. Brands
  3. Weil-McLain Manuals
  4. Boiler
  5. Evergreen EVG 70
  6. Manual

Weil-McLain Evergreen EVG 70 Manual

Condensing gas boiler
Hide thumbs
Table of Contents

Advertisement

Quick Links

Boiler Manual
This manual must only be used by a qualifi ed 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.
CONDENSING GAS BOILER
70/110/155
• Installation
• Maintenance
• Startup
• Parts
Part number 550-100-191/0917
®

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Evergreen EVG 70 and is the answer not in the manual?

Questions and answers

Related Manuals for Weil-McLain Evergreen EVG 70

Summary of Contents for Weil-McLain Evergreen EVG 70

  • Page 1 ® CONDENSING GAS BOILER 70/110/155 Boiler Manual • Installation • Maintenance • Startup • Parts This manual must only be used by a qualifi ed 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

    ® as-fired water boiler — Boiler Manual 70/110/155 Contents ® The Evergreen Gas-fi red water boilers... . 2 DO NOT SERVICE THE BOILER Please read before proceeding ....7 ®...

  • Page 3: G As-Fired Water Boiler

    ® as-fired water boiler — Boiler Manual 70/110/155 ® The Evergreen Gas-fi red water boilers 1. Stainless steel fi retube heat exchanger ® Evergreen control overview 2. Heat exchanger access cover/burner mounting plate • The Evergreen ® control can operate a single boiler or coordinate 3.
  • Page 4 ® as-fired water boiler — Boiler Manual 70/110/155 The EVG-70 Gas-fi red water boilers Part number 550-100-191/0917...
  • Page 5 ® as-fired water boiler — Boiler Manual 70/110/155 The EVG-110 Gas-fi red water boilers Part number 550-100-191/0917...
  • Page 6 ® as-fired water boiler — Boiler Manual 70/110/155 The EVG-155 Gas-fi red water boilers Part number 550-100-191/0917...

  • Page 7: Please Read Before Proceeding

    Weil-McLain boiler. Failure to adhere to the guidelines below can result in severe personal injury, death or substantial property damage.

  • Page 8: Boiler Location

    ® as-fired water boiler — Boiler Manual 70/110/155 Boiler location Installations must comply with: Residential garage installation Precautions • Local, state, provincial, and national codes, laws, regulations and ordinances. 1. Take the following special precautions when installing the boiler in a residential garage.
  • Page 9 ® as-fired water boiler — Boiler Manual 70/110/155 Boiler location (continued) Provide clearances for service Provide clearances from combustible access — RECOMMENDED materials — REQUIRED 1. See Figure 1 for recommended service clearances. 1. See Figure 2 for REQUIRED minimum clearances. ALL installation must provide at least these minimums.

  • Page 10: Prepare Boiler Location

    ® as-fired water boiler — Boiler Manual 70/110/155 Prepare boiler location Wall-mounting the boiler (continued) Flooring and foundation ® The operating weights for Evergreen boilers are: Flooring 1. The boiler is approved for installation on combustible fl ooring, Without With Stand Stand but must never be installed on carpeting.
  • Page 11 ® as-fired water boiler — Boiler Manual 70/110/155 Wall-mounting the boiler (continued) Verify that the studs are suitable for carrying a wall- The boiler is heavy, and requires two mounted load. Some metal studs are not designed for people to lift and place. Wear non-slip this purpose.
  • Page 12 ® as-fired water boiler — Boiler Manual 70/110/155 Wall-mounting the boiler Floor Stand Assembly (continued) Floor Standing The boiler is heavy, and requires two people to Figure 6 Boiler mounting studs lift and place upright. Use caution not to drop the boiler or cause bodily injury while lifting and handling.

  • Page 13: Boiler Hydrostatic Test

    ® as-fired water boiler — Boiler Manual 70/110/155 Boiler hydrostatic test DO NOT install a relief valve with a pressure insert a ¾" NPT pipe plug in the relief valve TEMPORARILY tapping. After the hydrostatic test, this plug must be removed higher than 30 PSIG .
  • Page 14 ® as-fired water boiler — Boiler Manual 70/110/155 Boiler hydrostatic test (continued) Figure 8 Install pipe fi ttings for relief valve and Figure 9 Install piping components required for hydrostatic test ( pressure/temperature gauge — see legend below) NOT mount relief valve until AFTER hydrostatic testing (see legend below) (155 only)

  • Page 15: Converting Boiler To Propane - Evg 70

    ® as-fired water boiler — Boiler Manual 70/110/155 Converting boiler to propane — EVG 70 Figure 10 Propane gas orifi ce identifi cation Prepa re boiler for propane — 70 (may be stamped 3.75) EVG 70 only (if required) Propane operation ®...
  • Page 16 ® as-fired water boiler — Boiler Manual 70/110/155 Converting boiler to propane — EVG 70 (continued) Figure 12 Installing the propane gas orifi ce (some details omitted for clarity) 7. See Figure 12 . Insert the propane gas orifi ce (item 4) into the gas LEGEND for Figure 12 valve outlet as shown.

  • Page 17: Converting Boiler To Propane - Evg 110

    ® as-fired water boiler — Boiler Manual 70/110/155 Converting boiler to propane — EVG 110 Figure 13 Propane gas orifi ce identifi cation Prepa re boiler for propane — 110 (may be stamped 3.7 only) EVG 110 only (if required) Propane operation ®...
  • Page 18 ® as-fired water boiler — Boiler Manual 70/110/155 Converting boiler to propane — EVG 110 (continued) Figure 15 EVG-110 -Installing the propane gas orifi ce (some details omitted for clarity) 7. See Figure 15 , Carefully pull the gas valve down until it is free of the venturi.

  • Page 19: Converting Boiler To Propane - Evg 155

    ® as-fired water boiler — Boiler Manual 70/110/155 Converting boiler to propane — EVG 155 Figure 16 Propane gas orifi ce identifi cation Prepa re boiler for propane — EVG 155 EVG 155 only (if required) Propane operation ® ALL Evergreen boilers must be converted for propane operation Converting an existing natural gas-fired...
  • Page 20 ® as-fired water boiler — Boiler Manual 70/110/155 Converting boiler to propane — EVG 155 (continued) Figure 17 Installing the propane gas orifi ce (some details omitted for clarity) Figure 18 Gas valve and venturi LEGEND for Figure 17 and Figure 18 Venturi (leave venturi attached to blower) (3) hex-head screws, 5 mm hex (remove and retain) Gas valve...

  • Page 21: Gas Piping - Sizing Gas Lines

    ® as-fired water boiler — Boiler Manual 70/110/155 Gas piping — sizing gas lines Boiler gas connection is ½" NPT. Size gas lines large Figure 19 Pipe capacity for 0.60 specifi c gravity enough to provide gas to all connected appliances. natural gas;...

  • Page 22: Venting/Air Piping - General

    ® as-fired water boiler — Boiler Manual 70/110/155 Venting/air piping — general You must pipe combustion air to the Any improper operation of the common venting system should be boiler air intake corrected so the installation conforms with the National Fuel Gas ®...
  • Page 23 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 123, page 139 for derate amounts.
  • Page 24 ® Centrotherm Eco Systems — InnoFlue Weil-McLain stainless steel bird screens, 2" or 3" (purchase separately) — see Figure 110, page 127 for part numbers Note 1: Weil-McLain concentric vent kits are made from PVC pipe ADAPTERS — AL29-4C piping — Install a PVC-to-stainless and fi ttings.

  • Page 25: Commonwealth Of Massachusetts Installations

    ® as-fired water boiler — Boiler Manual 70/110/155 Commonwealth of Massachusetts installations Commonwealth of Massachusetts — When the boiler is installed within the Commonwealth of Massachusetts, the boiler must be installed by a licensed plumber or gas fi tter. Read and comply with the instructions below. (a) For all sidewall horizontally-vented gas-fueled equipment .

  • Page 26: Vent Termination Requirements

    ® as-fired water boiler — Boiler Manual 70/110/155 Vent termination requirements Figure 24 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, openable 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 27: Boiler Room Air Openings

    ® as-fired water boiler — Boiler Manual 70/110/155 Boiler room air openings Figure 25 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 28: Direct Vent - Sidewall With Separate Pipes

    ® as-fired water boiler — Boiler Manual 70/110/155 DIRECT VENT — Sidewall with separate pipes Allowable vent/air pipe materials & Figure 26 — Separate pipes sidewall INSTALLATION SEQUENCE lengths Use only the vent materials and kits listed in Figure 23, page 24 . Provide pipe adapters if specifi...
  • Page 29 3. Use the provided paper template for correct location of hole centers. 4. Use of a sidewall termination plate is REQUIRED. a. Kits for several vent sizes are available from Weil-McLain. See “VENT/AIR PARTS AND KITS” on page 127 .

  • Page 30: Direct Vent - Sidewall Concentric

    ® as-fired water boiler — Boiler Manual 70/110/155 DIRECT VENT — Sidewall concentric Allowable vent/air pipe materials & Figure 29 INSTALLATION SEQUENCE — Concentric horizontal lengths 1. The concentric termination kit must be purchased separately. Use only the vent materials and kits listed in Figure 23, page 24 .
  • Page 31 ® as-fired water boiler — Boiler Manual 70/110/155 DIRECT VENT — Sidewall concentric (continued) Figure 30 See notices on previous page. Termination location — concentric termination — multiple boilers — clearance from vent of one to air intake of the next Install ter mination —...

  • Page 32: Direct Vent - Sidewall With W-M Vent/Air Plate

    33 . All vent pipes and air inlets must terminate at the same height to avoid Step 7 The Weil-McLain plate termination must be installed before piping possibility of severe personal injury, from the boiler to the termination. death or substantial property damage.
  • Page 33 Use the template to mark the locations for the four mounting holes, fl ue pipe and air pipe. Level the template with a level. For the Weil-McLain plate, the template must be level to Figure 34 Hole preparation in wall — INSIDE VIEW ensure the fl...

  • Page 34: Direct Vent - Vertical With Separate Pipes

    ® as-fired water boiler — Boiler Manual 70/110/155 DIRECT VENT — Vertical with separate pipes Allowable vent/air pipe materials & Figure 36 Separate pipes vertical termination lengths Use only the vent materials and kits listed in Figure 23, page 24 . Provide pipe adapters if specifi...
  • Page 35 ® as-fired water boiler — Boiler Manual 70/110/155 DIRECT VENT — Vertical with separate pipes (continued) See notices on previous page. Figure 37 Terminations for multiple boilers Prepare roof pen etrations 1. Air pipe penetration: a. Cut a hole for the air pipe. Size the air pipe hole as close as desired to the air pipe outside diameter.

  • Page 36: Direct Vent - Vertical Concentric

    ® as-fired water boiler — Boiler Manual 70/110/155 DIRECT VENT — Vertical concentric Allowable vent/air pipe materials & Figure 38 — Concentric vertical INSTALLATION SEQUENCE lengths 1. The concentric termination kit must be purchased separately. Use only the vent materials and kits listed in Figure 23, page 24 .
  • Page 37 ® as-fired water boiler — Boiler Manual 70/110/155 DIRECT VENT — Vertical concentric (continued) See notices on previous page. Figure 39 Vertical termination — 3" PVC concentric — single or multiple boilers 2. Place roof penetrations to obtain minimum clearance of 12 inches between the edges of adjacent vent pipes of other boilers for U.

  • Page 38: Concentric Termination, Typical (Sidewall Or Vertical)

    ® as-fired water boiler — Boiler Manual 70/110/155 Concentric termination, typical (sidewall or vertical) LEGEND for Figure 41 Figure 41 PVC concentric termination assembly — DO NOT attach the rain cap until the termination has been 1 — Inner PVC pipe (vent) 4 —...

  • Page 39: Vent And Air Piping And Boiler Connections

    ® as-fired water boiler — Boiler Manual 70/110/155 Vent and air piping and boiler connections Follow termination instructions Figure 42 Boiler vent and air connections 1. Read and follow all instructions for the termination type used before proceeding with this page. Follow all instructions provided by vent pipe manufacturer.

  • Page 40: Install Water Piping

    See Replacement parts section at the end of this manual for support the boiler piping connections to prevent the Weil-McLain low water cut-off kit. them from turning could cause damage to boiler 4. Install the low water cut-off (supplied with boiler) in a tee in components.

  • Page 41: Direct Connect System Piping - Single Boiler System

    ® as-fired water boiler — Boiler Manual 70/110/155 Direct Connect System Piping Single Boiler System Primary/secondary piping to boiler If replacing included circulator with replacement Using primary/secondary piping will provide the most effi cient Taco 00e model, replace only with Taco Model and reliable operation of the boiler and the heating system.

  • Page 42: Closed-Type Expansion Tank

    ® as-fired water boiler — Boiler Manual 70/110/155 Direct Connect System Piping - Single Boiler System (continued) Closed-type expansion tank: Figure 45 Piping to diaphragm- (or bladder-) type expansion tank DO NOT use a closed-type tank if connecting to a water heater that is equipped with an automatic air vent.

  • Page 43: System Water Piping Methods

    ® as-fired water boiler — Boiler Manual 70/110/155 Direct Connect System Piping - Single Boiler System (continued) Examples Figure 47 Piping to closed-type expansion tank Consider a system loop for a system with total heating input equal to 210,000 Btuh. The desired temperature drop through the system piping is 20°F.

  • Page 44: Zone Valve Zoning - Direct Connection

    Refer to Field wiring, beginning on page 54 , for instructions on wiring to circulators. For more than 3-zones, use Weil-McLain WMZV zone valve The factory default settings are: all three inputs are set up controller.

  • Page 45: Advanced Manual For Multiple Boiler Systems

    ® as-fired water boiler — Boiler Manual 70/110/155 Primary/Secondary System Piping - Single Boiler System See Advanced Manual for Multiple Boiler Systems Expansion tank location Figure 49 Piping to diaphragm (or bladder) expansion tank Figure 49 and Figure 50 show typical installation of the system expansion tank.

  • Page 46: Closed-Type Expansion Tank

    ® as-fired water boiler — Boiler Manual 70/110/155 Primary/Secondary System Piping Single Boiler System (continued) See Advanced Manual for Multiple Boiler Systems Closed-type expansion tank Figure 50 Piping to closed-type expansion tank DO NOT use a closed-type tank if connecting to a water heater that is equipped with an automatic air vent.

  • Page 47: System Water Piping Methods

    ® as-fired water boiler — Boiler Manual 70/110/155 Primary/Secondary System Piping Single Boiler System (continued) See Advanced Manual for Multiple Boiler Systems System water piping methods Figure 52 Estimated head loss of boiler loop piping and recommended circulators. Near boiler piping 1.

  • Page 48: Install Relief Valve

    ® as-fired water boiler — Boiler Manual 70/110/155 Primary/Secondary System Piping Single Boiler System (continued) See Advanced Manual for Multiple Boiler Systems System circulators and zone circulators Install re lief valve Install a system circulator or zone circulators as shown in the 1.

  • Page 49: Zone Valve Zoning - Primary/Secondary

    2007 Energy Act. See page 139 for compliance information and exemptions. Controlling the circulators For more than 3-zones, use Weil-McLain WMZV zone valve 1. The control can control up to four circulators (boiler controller. circulator and three others). Refer to Field wiring, beginning on page 54 , for instructions on wiring to circulators.

  • Page 50: Circulator Zoning - Primary/Secondary

    Controlling the circulators 1. The control can control up to four circulators (boiler circulator and three others). Refer to Field wiring, beginning For more than 3-zones, use Weil-McLain WMZV zone valve on page 54 , for instructions on wiring to circulators. controller.

  • Page 51: Circulator Zoning - Primary/Secondary Multi. Temp. Zone

    Section 303 of the 2007 Energy Act. See page 139 for compliance information and exemptions. For more than 3-zones, use Weil-McLain WMZV zone valve Controlling the circulators controller. 1. The control can control up to four circulators (boiler Connect zone valve end switches to Priority 2 input.

  • Page 52: Install Condensate Line

    (typically with a pH from 3.2 to 4.5). Install a neutralizing fi lter when draining into metal pipe and if required by local codes. See Replacement parts section at the end of this manual for the Weil-McLain kit. Part number 550-100-191/0917...

  • Page 53: Gas Piping

    ® as-fired water boiler — Boiler Manual 70/110/155 Gas piping ® Evergreen boilers are shipped ready to operate when tightening gas Use two wrenches on natural gas ONLY. You must install the piping at boiler, using one wrench to propane orifi ce if the boiler will be connected prevent the boiler gas line connection to propane.

  • Page 54: 70/110/155 Boiler Manual

    ® as-fired water boiler — Boiler Manual 70/110/155 Field wiring Wiring must be N.E.C. Class 1. If original ELECTRICAL SHOCK HAZARD — wiring as supplied with boiler must be For your safety, turn off electrical power replaced, use only type 105 °C wire or supply at service entrance panel before equivalent.
  • Page 55 ® as-fired water boiler — Boiler Manual 70/110/155 Field wiring (continued) Wiring to Multiple boiler communication wiring Comm board 1. Wires should be shielded thermostat wires, or equivalent. inside cabinet boiler 2. Route wires through top right knockout to communication board on display bracket.
  • Page 56 ® as-fired water boiler — Boiler Manual 70/110/155 Field wiring (see wiring diagram, Figure 60, page 62 ) (continued) A. 120 VAC Power Supply – REQUIRE D Terminal Strip P1 (EVG control module) 1. Provide and install a properly-sized, fused disconnect or service switch as required by applicable codes.
  • Page 57 ® as-fired water boiler — Boiler Manual 70/110/155 Field wiring (see wiring diagram, Figure 60, page 62 ) (continued) C. 120 VAC to Boiler Circulator – REQUIRED Boiler circulator terminal block to P4 on Control module (terminal block) 1. Provides 120VAC to the boiler circulator at Boiler circulator terminal. 2.
  • Page 58 ® as-fired water boiler — Boiler Manual 70/110/155 Field wiring (see wiring diagram, Figure 60, page 62 ) (continued) E. System supply and return temperature sensors – REQUIRED Terminal Block P14 (EVG control module) 1. Two strap-on temperature sensors are shipped with the boiler. Attach one to the system supply piping and the other to the system return piping.
  • Page 59 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 back of this manual. It includes a probe-type low water cut-off and provides a simple harness connection for the wiring.
  • Page 60 ® as-fired water boiler — Boiler Manual 70/110/155 Field wiring (see wiring diagram, Figure 60, page 62 ) (continued) K. Proof of closure (fl ow switch and/or CAD) – – see ADVANCED Manual OPTIONAL Jumper on Terminal Strip P7 (EVG control module) 1.
  • Page 61 ® as-fired water boiler — Boiler Manual 70/110/155 Field wiring (see wiring diagram, Figure 60, page 62 ) (continued) M. 0–10 VDC Remote MODULATION input – OPTIONAL Terminal Block P15 #5 & #6 (EVG control module) 1. See illustration at right and Figure 60, page 62 for details. 2.

  • Page 62: Wiring Diagram - Schematic

    ® as-fired water boiler — Boiler Manual 70/110/155 Wiring diagram — schematic Figure 60 Schematic wiring diagram (see Figure 61, page 63 for legend and notes) Part number 550-100-191/0917...

  • Page 63: Wiring Diagram - Ladder

    ® as-fired water boiler — Boiler Manual 70/110/155 Wiring diagram — ladder Figure 61 Ladder wiring diagram (see Figure 60, page 62 for schematic wiring diagram) Part number 550-100-191/0917...

  • Page 64: Zoning With The Evg Control

    ® as-fired water boiler — Boiler Manual 70/110/155 Zoning with the EVG Control A. Zoning with CIRCULATOR S, suggested applications Three space heating zones (no DHW) 1. Review wiring information on page 56 (120VAC outputs) and page 57 (24VAC inputs). 2.
  • Page 65 ® as-fired water boiler — Boiler Manual 70/110/155 Zoning with the EVG Control (continued) B. Zoning with ZONE VALVES, suggested applications Two space heating zones (no DHW) 1. Review wiring information on page 56 (120VAC outputs) and page 57 (24VAC inputs). 2.

  • Page 66: Evergreen Control Operation

    ® as-fired water boiler — Boiler Manual 70/110/155 Evergreen control operation Figure 62 Control sequence of operation Evergreen control setup 1. Set control parameters using the WIZARD option provided on initial start-up or manually enter parameters using control menus Display Control action (see Figure 69, page 79 and following pages for information.) status...
  • Page 67 ® as-fired water boiler — Boiler Manual 70/110/155 Evergreen control operation (continued) EVG control Priorities & Input/Outputs Setting Up the Boiler • For heating installations with multiple systems, the EVG control • DETERMINE input/output needs – uses PRIORITIES to determine the order of operation of the •...
  • Page 68 ® as-fired water boiler — Boiler Manual 70/110/155 Evergreen control operation (continued) Outdoor reset operation Figure 63 Outdoor reset operation 1. Set desired temperatures for space heating zones. 2. For an explanation of the target temperatures and associated outdoor temperatures, see Figure 63 . 3.
  • Page 69 ® as-fired water boiler — Boiler Manual 70/110/155 Evergreen control operation (continued) Figure 65 Evergreen single boiler essential settings (REQUIRED on initial start-up) — see page 78 for explanation Part number 550-100-191/0917...

  • Page 70: Evg Control Settings Menus

    ® as-fired water boiler — Boiler Manual 70/110/155 EVG control settings menus Figure 66 Evergreen control display screens and typical navigation Part number 550-100-191/0917...
  • Page 71 ® as-fired water boiler — Boiler Manual 70/110/155 Notes Part number 550-100-191/0917...

  • Page 72: Express Setup - Example A

    ® as-fired water boiler — Boiler Manual 70/110/155 EXPRESS SETUP — Example A Multi-zone SPACE HEATING (Circulators with circulator relays) | DHW (Direct-piped) — VALUE MUST BE SET OR VERIFIED EVG Control settings Boiler Model, Altitude and Fuel Type are critical D —...
  • Page 73 ® as-fired water boiler — Boiler Manual 70/110/155 EXPRESS SETUP — Example A (continued) Multi-zone SPACE HEATING (Circulators with circulator relays) | DHW (Direct-piped) 14 Unions as needed Evergreen boiler. for service. Indirect water heater, if 15 Return temperature used (domestic water sensor.

  • Page 74: Express Setup - Example B

    ® as-fired water boiler — Boiler Manual 70/110/155 EXPRESS SETUP — Example B 2- or 3- Zone SPACE HEATING (Circulators without circulator relays) | DHW (Direct-piped) — VALUE MUST BE SET OR VERIFIED EVG Control settings Boiler Model, Altitude and Fuel Type are critical D —...
  • Page 75 ® as-fired water boiler — Boiler Manual 70/110/155 EXPRESS SETUP — Example B (continued) 2- or 3- Zone SPACE HEATING (Circulators without circulator relays) | DHW (Direct-piped) 14 Unions as needed Evergreen boiler. for service. Indirect water heater, if 15 Return temperature used (domestic water sensor.

  • Page 76: Express Setup - Example C

    ® as-fired water boiler — Boiler Manual 70/110/155 EXPRESS SETUP — Example C Multi-zone SPACE HEATING (Zone valves + WMZV controller) | DHW (Direct-piped) — VALUE MUST BE SET OR VERIFIED EVG Control settings Boiler Model, Altitude and Fuel Type are critical D —...
  • Page 77 ® as-fired water boiler — Boiler Manual 70/110/155 EXPRESS SETUP — Example C (continued) Multi-zone SPACE HEATING (Zone valves + WMZV controller) | DHW (Direct-piped) 14 Unions as needed Evergreen boiler. for service. Indirect water heater, if 15 Return temperature used (domestic water sensor.

  • Page 78: Available Control Settings And System Presets

    ® as-fired water boiler — Boiler Manual 70/110/155 Available control settings and system presets Figure 67 Evergreen control settings available in BASIC MODE (see Advanced Manual for ADVANCED MODE settings) Available settings from CONTRACTOR MENU Boiler Settings Menu Priority 2 menu Assign Inputs menu •...

  • Page 79: Contractor Menus

    ® as-fired water boiler — Boiler Manual 70/110/155 CONTRACTOR menus Boiler Model, Altitude and Fuel Type are 1. Access contractor menus by pressing and holding the UP and DOWN arrow keys at the same time for 7 seconds. critical settings. Failure to set correctly could result in severe personal injury, death or substantial 2.

  • Page 80: Boiler Settings Menu, Basic Mode

    ® as-fired water boiler — Boiler Manual 70/110/155 BOILER SETTINGS menu, BASIC mode Boiler Model, Altitude and Fuel Type are 1. Access contractor menus by pressing and holding the UP and Failure to set correctly could critical settings. DOWN arrow keys at the same time for 7 seconds. result in severe personal injury, death or substantial 2.

  • Page 81: Priority 1, 2, 3 Menus, Basic Mode

    ® as-fired water boiler — Boiler Manual 70/110/155 PRIORITY 1, 2, 3 menus, BASIC mode Boiler Model, Altitude and Fuel Type are 1. Access contractor menus by pressing and holding the UP and Failure to set correctly could critical settings. DOWN arrow keys at the same time for 7 seconds.

  • Page 82: Assign Inputs Menu, Basic Mode

    ® as-fired water boiler — Boiler Manual 70/110/155 ASSIGN INPUTS menu, BASIC mode Boiler Model, Altitude and Fuel Type are 1. Access contractor menus by pressing and holding the UP and Failure to set correctly could critical settings. DOWN arrow keys at the same time for 7 seconds. result in severe personal injury, death or substantial 2.
  • Page 83 ® as-fired water boiler — Boiler Manual 70/110/155 ASSIGN INPUTS menu, BASIC mode (continued) Figure 73 AUX PUMP/OUTPUT operation (accessed in ASSIGN INPUTS menu – see Figure 72, page 82 ) Option Activation conditions Suggested uses • Hot loop for seasonal boilers that are manually ALWAYS ON •...

  • Page 84: Diagnostic Menu

    ® as-fired water boiler — Boiler Manual 70/110/155 DIAGNOSTIC menu Figure 75 DIAGNOSTICS menu navigation (see Figure 66, page 70 for access information) Menus Next screen Next screen Next screen Next screen Follow information at the bottom of each screen to navigate to next/previous screen or enter/save data DIAGNOSTICS TEMPERATURES STATUS:...
  • Page 85 ® as-fired water boiler — Boiler Manual 70/110/155 DIAGNOSTICS menu (continued) Figure 76 DIAGNOSTICS menu navigation, continued (see Figure 66, page 70 for access information) Menus Next screen Next screen Next screen Next screen Follow information at the bottom of each screen to navigate to next/previous screen or enter/save data DIAGNOSTICS (cont.) NETWORK INPUTS Shows input status of all network boiler inputs.
  • Page 86 ® as-fired water boiler — Boiler Manual 70/110/155 DIAGNOSTICS menu (continued) Figure 77 DIAGNOSTICS menu details (see Figure 66, page 70 for access information) Menu/Item Comment Temperatures Current operating status of the boiler. Prepurge, Ignition, Name of the system Type being satisfi ed, post purge, Warm Weather Status Shut down, Trouble Boiler Out1...
  • Page 87 ® as-fired water boiler — Boiler Manual 70/110/155 DIAGNOSTICS menu (continued) Figure 78 DIAGNOSTICS menu details (continued) (see Figure 66, page 70 for access information) Menu/Item Comment Run Times Burner Time Displays cumulative time the burner has been active (can be increased by user) Rotate Time Records the days of operation passed from the last time the Master boiler rotated the fi...
  • Page 88 ® as-fired water boiler — Boiler Manual 70/110/155 DIAGNOSTICS menu (continued) Figure 79 DIAGNOSTICS menu details (continued) (see Figure 66, page 70 for access information) Menu/Item Comment Displays the type of fault that occurred Fault Type Displays time that lockout occurred Time Date Displays date that lockout occurred...

  • Page 89: Maintenance, Date And Time Menus

    ® as-fired water boiler — Boiler Manual 70/110/155 MAINTENANCE, DATE AND TIME menus Figure 80 MAINTENANCE, DATE AND TIME menus — navigation (see Figure 66, page 70 for access information) Maintenance Info Comment Name Contractor name to appear in maintenance reminders and during lockouts Phone Contractor phone number Model...
  • Page 90 ® as-fired water boiler — Boiler Manual 70/110/155 Notes Part number 550-100-191/0917...

  • Page 91: Startup - Fi Ll The System

    Antif reeze 1. You must thoroughly flush the system (without boiler 1. Use only antifreeze listed by Weil-McLain as suitable for connected) to remove sediment. The high-effi ciency heat use with EVG Gas Boilers. See Figure 110, page 127 for information.
  • Page 92 Weil-McLain boilers. Do not apply 4. Follow instructions on antifreeze container to determine the amount these products or instructions for of antifreeze needed.

  • Page 93: Startup - Fi Nal Checks

    ® as-fired water boiler — Boiler Manual 70/110/155 Startup — fi nal checks Inspect/fi ll condensate system Check for gas leaks Inspect/check condensate lines and fi ttings Remove fl oor stand front access panel to access the condensate trap. Before starting the boiler, and during initial operation, Inspect the condensate drain line, condensate PVC fi...
  • Page 94 ® as-fired water boiler — Boiler Manual 70/110/155 Startup — fi nal checks (continued) ❏ Final checks before starting boiler Check gas piping ❏ Read the instructions to adjust and set up the control. 1. Check around the boiler and inside the boiler jacket for gas odor following the procedure of page 53 of this manual.
  • Page 95 ® as-fired water boiler — Boiler Manual 70/110/155 Startup — fi nal checks (continued) Figure 82 Operating instructions (WARNING -Verify that the control is set for the correct boiler model before proceeding.) Part number 550-100-191/0917...
  • Page 96 fi re, verify high fi re readings again. Restore fi ring rate to AUTO. DO NOT adjust throttle on low fi re. 7. Consult your local Weil-McLain representative if acceptable results cannot be obtained for both high and low fi re.
  • Page 97 EVG 110 Restore fi ring rate to AUTO. DO NOT adjust throttle on low fi re. 7. Consult your local Weil-McLain representative if acceptable Adjust the throttle screw in small movements. results cannot be obtained for both high and low fi re.
  • Page 98 AUTO. DO NOT adjust throttle on low fi re. weepage or other indications that there might be 7. Consult your local Weil-McLain representative if acceptable results leakage, follow the procedure for checking the heat cannot be obtained for both high and low fi re.

  • Page 99: Check-Out/Startup Verifi Cation

    ® as-fired water boiler — Boiler Manual 70/110/155 Check-out/startup verifi cation ❏ Adjust and test boiler controls Additional field-installed controls tested as outlined by control manufacturers? (Boiler should be operating and 1. Follow instructions in this manual to set and verify operation should go off when controls are tested.

  • Page 100: Annual Startup And General Maintenance

    ® as-fired water boiler — Boiler Manual 70/110/155 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 101: Annual Startup

    HANDLING CERAMIC FIBER FIRST-YEAR SPECIAL INSPECTION MATERIALS It is recommended that you obtain a Weil-McLain Boiler Maintenance kit before REMOVING BURNER GASKET or attempting the fi rst-year inspection, to ensure COVER PLATE INSULATION all parts that may be needed are available .

  • Page 102: Address Reported Problems

    ® as-fired water boiler — Boiler Manual 70/110/155 Annual startup (continued) Clea n condensate trap The boiler should be inspected and 1. See Figure 88 . started annually, at the beginning of 2. Remove floor stand front access panel to access the the heating season, only by a qualifi...

  • Page 103: Check Air Openings

    ® as-fired water boiler — Boiler Manual 70/110/155 Annual startup (continued) • Do not use automatic air vents in systems with Check air openings closed-type tanks. The air will escape from the system instead of returning to the tank. 1. Verify that combustion and ventilation air openings to the •...

  • Page 104: Check Ignition Wiring

    7. Write down the blower RPM value. It should be within 200 not acceptable, check combustion values. If combustion RPM of the value listed in Figure 90 . is properly adjusted, obtain a replacement burner from 8. Set the fi ring rate to HIGH (high fi re). Weil-McLain. Part number 550-100-191/0917...

  • Page 105: Check Fl Ue Gas Temperature

    Manual Test has ended. Ensure critical applications remain heated. Long periods For elevations above 10,000 feet, please contact Weil-McLain Technical Support for details. of low heating can cause property damage. 4. The selected boiler will run at the forced rate until it is In Canada, Input rates are derated 10% for altitudes of either returned to AUTO, the user selects “End Manual...

  • Page 106: Check Boiler Relief Valve

    ® as-fired water boiler — Boiler Manual 70/110/155 Annual startup (continued) Check b oiler relief valve Reinsta ll jacket door after servicing 1. Inspect the relief valve and lift the lever to verify fl ow as in the following warnings, excerpted from a relief valve manufacturer’s warning label.

  • Page 107: Troubleshooting

    ® as-fired water boiler — Boiler Manual 70/110/155 Troubleshooting Before calling for troubleshooting assistance, fi ll in the “ ” ( page 144 ). EVG Gas Data Collection Sheet 1. See Figure 91 for tools and kits recommended for troubleshooting Record the boiler size and CP number (located on the Evergreen ®...

  • Page 108: Checking Temperature Sensors

    ® as-fired water boiler — Boiler Manual 70/110/155 Troubleshooting (continued) Check control fuses Figure 93 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 Line Voltage control or other components from operating.
  • Page 109 ® as-fired water boiler — Boiler Manual 70/110/155 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 2. Figure 94 shows the screen behavior 3.
  • Page 110 ® as-fired water boiler — Boiler Manual 70/110/155 Troubleshooting (continued) Figure 95 Troubleshooting suggestions for EVG boilers — EVG control Error Condition Log RESET TO FACTORY DEFAULT 1. Selecting this will prompt the user to hold the enter button 2. Reset to Factory Default can be found on the BOILER SETTINGS menu, see Figure 69, page 79 .
  • Page 111 ® as-fired water boiler — Boiler Manual 70/110/155 Troubleshooting (continued) Figure 97 Troubleshooting suggestions for EVG boilers — Fault displays, diagnostics and corrective actions Condition Diagnostics Corrective Action(s) Display Nothing shown Control is not receiving 24V Check wiring for short circuit or Correct wiring per wiring diagram including connection of transformer on display power.
  • Page 112 fl ueways for abnormal wear or buildup. Manual reset is required if the Inspect vent system for abnormal wear or damage. temperature rises above 220° F. Reset using manual reset screen Contact Weil-McLain Technical Support. on display. Part number 550-100-191/0917...
  • Page 113 ® as-fired water boiler — Boiler Manual 70/110/155 Troubleshooting (continued) Figure 99 Troubleshooting suggestions for EVG boilers — Fault displays, diagnostics and corrective actions Condition Diagnostics Corrective Action(s) Display Occurs if manual or automatic Automatic external limit will Is there an external safety device connected? If yes, trouble shoot the LIMIT OPEN reset limit opens.
  • Page 114 ® as-fired water boiler — Boiler Manual 70/110/155 Troubleshooting (continued) Figure 100 Troubleshooting suggestions for EVG boilers — Fault displays, diagnostics and corrective actions Condition Diagnostics Corrective Action(s) Display IGNITION Boiler went through 5 ignition Automatically resets after 1 hour Check condensate trap for blockage allowing condensate to accumulate FAULT attempts and never detected...

  • Page 115: Maintenance

    SIDE, when required the boiler. 1. Isolate the boiler from the heating system. 2. Obtain Sentinel X400 cleaner from Weil-McLain. Follow Failure to replace damaged components and to use only instructions supplied with the cleaner to clean the boiler the parts specifi cally intended for the boiler can result heat exchanger.
  • Page 116 ® as-fired water boiler — Boiler Manual 70/110/155 Notes Part number 550-100-191/0917...

  • Page 117: Cleaning Heat Exchanger Fl Ue Side, 70

    ® as-fired water boiler — Boiler Manual 70/110/155 Cleaning heat exchanger fl ue side, 70 Cleaning the EVG 70 hea t exch anger Figure 101 Legend for Figure 104 , page 118 FLUE SIDE or ac cessing the burner, if required A Boiler interior 6 Heat exchanger cover plate...
  • Page 118 ® as-fired water boiler — Boiler Manual 70/110/155 Cleaning heat exchanger fl ue side, 70 (continued) Figure 102 Accessing the burner or heat exchanger (see Legend on page 117 ) Part number 550-100-191/0917...
  • Page 119 ® as-fired water boiler — Boiler Manual 70/110/155 Cleaning heat exchanger fl ue side, 70 (continued) Inspect and clean the burner 3. Reinstall the burner (item 10) and burner gasket (item 13) on the cover plate (item 6). Tighten the burner screws (item 14) 1.

  • Page 120: Cleaning Heat Exchanger Fl Ue Side, 110

    ® as-fired water boiler — Boiler Manual 70/110/155 Cleaning heat exchanger fl ue side, 110 Cleaning the EVG 110 hea t exch anger Figure 103 Legend for Figure 106 , page 107 FLUE SIDE or ac cessing the burner, if required A Boiler interior 4 Venturi gas line clip...
  • Page 121 ® as-fired water boiler — Boiler Manual 70/110/155 Cleaning heat exchanger fl ue side, 110 (continued) Figure 104 Accessing the burner or heat exchanger (see Legend on page 120 ) Part number 550-100-191/0917...
  • Page 122 ® as-fired water boiler — Boiler Manual 70/110/155 Cleaning heat exchanger fl ue side, 110 (continued) Inspect and clean the burner 4. Apply a ring of silicone adhesive on the cover plate (to secure the refractory). 1. See Figure 106, page 121 part D. 5.

  • Page 123: Cleaning Heat Exchanger Fl Ue Side, 155

    ® as-fired water boiler — Boiler Manual 70/110/155 Cleaning heat exchanger fl ue side, 155 Cleaning the EVG 155 hea t exch anger Disconnect the two wire harnesses connected to the blower and the wire harness connected to the gas valve. FLUE SIDE or ac cessing the burner, 3.
  • Page 124 ® as-fired water boiler — Boiler Manual 70/110/155 Cleaning heat exchanger fl ue side, 155 (continued) DO NOT gouge or crack the refractory. The Figure 105 Legend for Figure 108, page 125 refractory is made of ceramic fi ber materials. Read the ceramic fi...
  • Page 125 ® as-fired water boiler — Boiler Manual 70/110/155 Cleaning heat exchanger fl ue side, 155 (continued) Figure 106 Accessing the burner or heat exchanger (see Legend on page 124 ) Do NOT attempt to remove the burner from the heat exchanger cover plate without first removing the heat exchanger cover plate from heat exchanger.

  • Page 126: Replacement Parts

    Failure to replace Replacement parts must be purchased through a local Weil-McLain distributor. When ordering, specify boiler model and size and include damaged components and to use only the parts description and part number of replacement part.
  • Page 127 VENT/AIR PARTS AND KITS (PVC or STAINLESS STEEL) 3PPF available from Weil-McLain VENT/AIR PARTS AND KITS (POLYPROPYLENE PIPE) Weil-McLain sidewall vent/air cap termination kit for PVC vent 383-500-397 available from Centrotherm Eco Systems ONLY and air pipes Centrotherm INNOFLUE SIDEWALL concentric vent/air Includes sidewall vent/air termination cap, inside and outside cover plates, and mounting hardware;...
  • Page 128 Includes (4) leg leveling glides 5/16-18 nickel plated steel with 383-500-065 polyethylene base Bumpers Stand-off .5 inches threaded #10-24 563-039-984 Shoulder screw Screw shoulder 1/4" x 5/16 10-24 x 3/8 thread stainless steel 562-150-305 Go to www.weil-mclain.com to locate Weil-McLain distributors Part number 550-100-191/0917...
  • Page 129 ® as-fired water boiler — Boiler Manual 70/110/155 Replacement parts (continued) Figure 110 Jacket assembly — EVG 70/110/155 (see Figure 111, page 128 for part numbers) Go to www.weil-mclain.com to locate Weil-McLain distributors Part number 550-100-191/0917...
  • Page 130 Burner, gasket, and hardware (includes item 250) 383-700-246 — 383-700-107 — Burner gasket 383-700-247 — Heat exchanger water temperature sensor (one sensor for either boiler inlet or outlet water 511-724-296 temperature) Go to www.weil-mclain.com to locate Weil-McLain distributors Part number 550-100-191/0917...
  • Page 131 ® as-fired water boiler — Boiler Manual 70/110/155 Replacement parts (continued) Figure 112 Heat exchanger assembly EVG 70/110 (see Figure 113, page 130 for part numbers) Go to www.weil-mclain.com to locate Weil-McLain distributors Part number 550-100-191/0917...
  • Page 132 ® as-fired water boiler — Boiler Manual 70/110/155 Replacement parts (continued) Figure 113 Heat exchanger parts EVG 155 (see Figure 116, page 133 for illustration) Item Name Part Number Heat exchanger 383-800-231 Heat exchanger, condensate dish, cover plate, burner, igniter, sight glass, refractory, water sensors, gaskets, silicone, and hardware 383-800-233 (includes items 100, 130, 140, 160, 170,180, 190, 200, 210, and 270)
  • Page 133 ® as-fired water boiler — Boiler Manual 70/110/155 Replacement parts (continued) Figure 114 Heat exchanger assembly EVG 155 (see Figure 115, page 132 for part numbers) Part number 550-100-191/0917...
  • Page 134 Propane orifi ce — boilers converted to propane ONLY — available only with propane conversion kit — see — Figure 109, page 126 for information Gas fl ex line Gas pipe and hardware 383-800-241 Gas pipe fl ange gasket Gasket, gas fl ex line to cabinet 590-300-027 Go to www.weil-mclain.com to locate Weil-McLain distributors Part number 550-100-191/0917...
  • Page 135 ® as-fired water boiler — Boiler Manual 70/110/155 Replacement parts (continued) Figure 117 Combustion components for EVG 70/110 /155(see Figure 117, page 134 for part numbers) Go to www.weil-mclain.com to locate Weil-McLain distributors Part number 550-100-191/0917...
  • Page 136 Includes 8 connectors 383-900-111 Low voltage sealed wire grommet (not shown) Seals thermostat wire at entrance to cabinet 562-248-771 Communication board terminal block 512-050-248 Communication board standoffs Includes 4 stand offs 383-900-112 Go to www.weil-mclain.com to locate Weil-McLain distributors Part number 550-100-191/0917...
  • Page 137 ® as-fired water boiler — Boiler Manual 70/110/155 Replacement parts (continued) Figure 119 Controls and electrical assemblies — EVG 70/110/155 (see Figure 120, page 136 for part numbers) Go to www.weil-mclain.com to locate Weil-McLain distributors Part number 550-100-191/0917...

  • Page 138: Dimensions

    ® as-fired water boiler — Boiler Manual 70/110/155 Dimensions ® Figure 120 Evergreen Dimensional data — 70/110/155 (all dimensions in inches) 1 Boiler supply tapping — 1" NPT -70/110, 1-1/4" NPT -155 5 Vent connection: 3" PVC 2 Boiler return tapping — 1" NPT -70/110, 1-1/4" NPT -155 6 Gas connection 3 Control display and navigation buttons 7 Condensate trap nozzle...

  • Page 139: Ratings - Evergreen® Boilers

    95.1 3.22 3" PVC Notes As an Energy Star Partner, Weil-McLain for the requirements of the building All vent and air pipe elbows must be sweep has determined that Evergreen ® 70, 110 and nothing need be added for normal elbows, NOT short-radius elbows.
  • Page 140 110 155 Note 1 Note 2 Net AHRI ratings are based on piping and pickup allowance of 1.15. Consult Weil-McLain Technical Services for other allowances. Total amp requirement includes up to four circulators, not exceeding 2.2 amps per 12.8 circulator.

  • Page 141: Installation And Service Certifi Cate

    ® as-fired water boiler — Boiler Manual 70/110/155 Installation and Service Certifi cate Boiler Data Boiler Model / Series Evergreen ________ / Series ____ Date installed _____________________ CP Number ________________ FUEL: Natural ______ LP ______ Btu Input ___________________ ❏ Installation instructions have been followed. CERTIFIED THAT ❏...
  • Page 142 ® as-fired water boiler — Boiler Manual 70/110/155 Installation and Gas Boiler Data Collection Sheet Boiler Model / Series EVG ________ / Series _______ Date Installed: ___________________ CP Number: __________________ Fuel Type: Natural___ LP___ BTU Input: ____________ Flame signal on control display at HIGH fi re: _________________ Flame signal on control display at LOW fi...
  • Page 143 ® as-fired water boiler — Boiler Manual 70/110/155 Installation and Gas Boiler Data Collection Sheet CO2 @: High Fire______% Low Fire______% CO@: High Fire _____ ppm Low Fire _____ ppm Natural Gas / LP input rate measured: HIGH ______ CFH / LOW________ CFH Priority 4 Settings Priority 2 Settings Priority 3 Settings...

  • Page 144: Evergreen® Gas Boiler Data Collection Sheet

    ® as-fired water boiler — Boiler Manual 70/110/155 ® Eve rgreen Gas B oiler Data Collection Sheet Customer Info: Maintenance Info: Contact: Name: Contractor: Phone: Job name: Model: City, state: CP#: Distributor: Installed: Boiler/System Piping Details (Please Sketch) System Components: Near boiler pipe size: DHW tank (yes/no): DHW direct/system:...

This manual is also suitable for:

Evergreen evg 155Evergreen evg 110

Table of Contents