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Weil-McLain ECO 110, Manual

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Weil-McLain ECO 110 Manual Download Page 125

Go to www.weil-mclain.com to locate Weil-McLain distributors

Replacement parts

(continued)

Figure 130

   

Controls and electrical assemblies — 

ECO 70/110/155

 (see  Figure 129, page 124  for part numbers)

&$0

Part number 550-142-190/1218

 125 

®

 

S

ERIES

 2 

G

AS

-

FIRED

 

WATER

 

BOILER

 — 

Boiler Manual

Summary of Contents for ECO 110

Page 1: ...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...

Page 2: ...IAL settings 69 ECO control settings menus 70 BOILER SETTINGS menu 71 HEATING SETTINGS menu 72 DHW SETTINGS menu 74 CIRCULATOR EXERCISING and FREEZE PROTECTION 75 DIAGNOSTIC menu 76 DATE AND TIME menu...

Page 3: ...ed by the installer 15 Control module The control module responds to signals from the room thermostat DHW aquastat if used boiler sensors boiler return boiler supply ue temperature and outdoor tempera...

Page 4: ...Series 2 Gas red water boilers continued 2 E D E D QRW VKRZQ E 0 OUFSJPS TPNF EFUBJMT PNJUUFE GPS DMBSJUZ 0 PUUPN 0 PUUPN 0 5PQ 0 SPOU Part number 550 142 190 1218 4 SERIES 2 GAS FIRED WATER BOILER Bo...

Page 5: ...2 E D E 0 OUFSJPS TPNF EFUBJMT PNJUUFE GPS DMBSJUZ Part number 550 142 190 1218 5 The ECO 110 Series 2 Gas red water boilers continued SERIES 2 GAS FIRED WATER BOILER Boiler Manual...

Page 6: ...E D DQG QRW VKRZQ E 0 OUFSJPS TPNF EFUBJMT PNJUUFE GPS DMBSJUZ 0 PUUPN Part number 550 142 190 1218 6 The ECO 155 Series 2 Gas red water boilers continued SERIES 2 GAS FIRED WATER BOILER Boiler Manua...

Page 7: ...components failures power outages or other electrical system failures could result in frozen plumbing and water damage in a matter of hours For your protection take preventative actions such as havin...

Page 8: ...ations or Natural Gas and Propane Installation Code CSA B149 1 and B149 2 for Canadian installations Locate or protect the boiler so it cannot be damaged by a moving vehicle Ensure that the installati...

Page 9: ...he minimum clearances in this illustration then the enclosure must have air openings located and sized per Figure 2 B Left side service clearance 3 inches minimum C Service clearance above top of boil...

Page 10: ...55 120 pounds Failure to comply with above and the procedure given below could result in severe personal injury death or substantial property damage 1 Stud spacing Bracket holes are spaced for studs o...

Page 11: ...c part 3 Obtain assistance to lift the boiler into position 4 Lift the boiler high enough that its mounting studs item 3 will be above the wall mount bracket item 2 5 Let the rear of the boiler slide...

Page 12: ...nce around the bracket because the display is larger than the bracket It may be helpful to remove the display from the box and temporarily t it up to the bracket to estimate the needed clearance Remov...

Page 13: ...After the hydrostatic test this plug must be removed and the relief valve must be installed Fill and pressure test 1 See Figure 9 page 14 for use with the following instructions 2 CLOSE the boiler dra...

Page 14: ...e with boiler 5b Reducing tee NPT 1 x 1 x on 70 110 1 x 1 x on 155 shipped loose with boiler 6 Nipple NPT 1 x close on 70 110 1 x close on 155 shipped loose with boiler 7 Bushing NPT 1 x 1 shipped loo...

Page 15: ...boiler follow all instructions in this manual to start up the boiler and verify operation of the boiler and all system components 1 Locatethepropaneori cefromthepropaneconversionkitbag 2 Verify that...

Page 16: ...damagedbymanometer uid contamination Failure to comply could result in severe personal injury death or substantial property damage 10 After installation is complete attach the propane conversion label...

Page 17: ...s to venturi Support the gas valve after disconnecting it DO NOT allow it to hang from the gas valve ex line When re attaching the gas valve ensure the gas valve propane ori ce is properly seated in r...

Page 18: ...on both the gas valve and venturi 12 Swing the silencer bracket clip item 5 back into position and snap on to the gas line DO NOT ATTEMPT TO MEASURE VALVE OUTLET PRESSURE The valve could be damaged by...

Page 19: ...condition 9 Insert the propane gas ori ce item 7 into the gas valve opening as shown in Figure 18 page 20 10 Make sure that the rubber grommet item 8 is rmly seated in the gas valve opening When re at...

Page 20: ...encer leave connected to venturi 5 Flexible gas line 6 Gas line to silencer bracket rotate forward before disconnecting gas valve from venturi 7 Propane ori ce in propane conversion kit envelope 8 Rub...

Page 21: ...ngths using data from Figure 20 b Figure 19 is only for natural gas with speci c gravity 0 60 with a pressure drop through the gas piping as listed in the table c For additional gas pipe sizing inform...

Page 22: ...ng system should be corrected so the installation conforms with the National Fuel Gas Code ANSI Z223 1 NFPA 54 latest edition and or the Natural Gas and Propane Installation Code CAN CSA B149 1 When r...

Page 23: ...DWV CPVC PP SS 2 PVC PVC DWV CPVC PP SS 2 PVC PVC DWV CPVC PP SS 2 PVC PVC DWV CPVC PP SS 3 PVC PVC DWV CPVC PP SS 3 PVC PVC DWV CPVC PP SS 3 PVC PVC DWV CPVC PP SS 3 PVC PVC DWV CPVC PP SS 3 PVC PVC...

Page 24: ...detailed information MUST USE LOCKING COLLAR ON EVERY JOINT ULC S636 PVC PVC DWV CPVC or polypropylene AL29 4C stainless steel piping materials Vent pipe AL29 4C stainless steel Heat Fab Inc Saf T Ve...

Page 25: ...EP CLEAR OF ALL OBSTRUCTIONS 4 INSPECTION The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation unless upon inspection the inspe...

Page 26: ...ropane Installation Code CAN CSAB149 1 The vent termination clearances below are for U S A for Canadian vent termination clearances please refer to the requirements of CAN CSA B149 1 Natural Gas and P...

Page 27: ...otherwise by appliance manufacturer TWO openings each at least 1 square inch per 4 000 Btuh of all other appliances in the room OR ONE opening each at least 1 square inch per 3 000 Btuh of all other...

Page 28: ...ou have read page 22 through page 27 See notices at left Step 2 Install the boiler in a location that allows proper routing of all vent and air piping to the selected sidewall location Step 3 Make sur...

Page 29: ...through oors or walls 6 Seal exterior openings thoroughly with exterior caulk Termination and fittings 1 Prepare the vent termination elbow and the air termination elbow by inserting bird screens See...

Page 30: ...minimum clearance as shown in Figure 30 page 31 for U S installations For Canadian installations provide clearances required by CSA B149 1 or B149 2 Installation Code and a ULC S636 compliant vent kit...

Page 31: ...unt and secure the concentric termination as shown in Figure 31 The vent and air piping must be securely supported and must not rest its weight on the boiler ttings Failure to properly support the ven...

Page 32: ...a direct vent connection It is not classi ed as a forced air intake with regard to spacing from adjacent boiler vents For terminations of other appliances provide at least the clearance shown The inst...

Page 33: ...template with a level For the Weil McLain plate the template must be level to ensure the ue and air pipe will be side to side as shown in Figure 34 Failure to comply could result in severe personal in...

Page 34: ...adjacent boiler vents Figure 36 Separate pipes vertical termination Terminate vent and air pipes such that a AIR INTAKE IS AT LEAST 12 inches below vent outlet b AIR INTAKE IS NO FURTHER than 12 inche...

Page 35: ...e vent termination elbow and the air termination elbow Figure 36 page 34 by inserting bird screens Bird screens must be purchased separately See the parts list at the end of this manual for part numbe...

Page 36: ...ng multiple ECO boilers install the concentric vent air termination assemblies as described in this manual All vent outlets must terminate at the same height to avoid possibility of severe personal in...

Page 37: ...g must be securely supported and must not rest its weight on the boiler ttings DO NOT drill or screw into either the vent pipe or air pipe Failure to properly support the vent and air piping could res...

Page 38: ...ts list at the end of this manual for part numbers 2 Maintain the required dimensions of the finished termination piping as shown in Figure 42 Multiple vent terminations 1 When terminating multipleECO...

Page 39: ...lation with exhaust from other appliances such as inside building corners near adjacent buildings or surfaces window wells stairwells alcoves courtyards or other recessed areas c Locate the air inlet...

Page 40: ...to cover the end of the assembly with plastic before inserting through the roof penetration to prevent debris from blocking the air passages If necessary you can shorten the lengths of the inner and o...

Page 41: ...e Provide 2 or 3 PVC transitions at the termination if using a PVC concentric vent kit Install a locking collar at every joint For AL29 4C vent pipe applications comply with any additional requirement...

Page 42: ...external limit for example Separate low water cutoff 1 A separate low water cutoff device is recommended when the boiler is installed above piping level and may be required by certain state or local c...

Page 43: ...may reduce pump life Expansion tank location Figure 48 and Figure 50 show typical installation of the system expansion tank It is highly recommended that you locate the air separator and expansion ta...

Page 44: ...the system will cause water logging of the expansion tank Closed type expansion tank Follow tank manufacturer s instructions for lling the tank Typical tank sizing provides for approximately 12 PSIG w...

Page 45: ...nect discharge piping to safe disposal location following guidelines in the WARNING below To avoid water damage or scalding due to relief valve operation as per local or state codes Install relief val...

Page 46: ...pages 48 53 for piping suggestions and guidelines 2 Systems zoned with zone valves MUST use a by pass pressure regulator Taco 3196 shown 3 Install a system circulator supplied by installer capable of...

Page 47: ...e up water addition Always locate the cold water ll connection at the expansion tank Never locate this elsewhere Diaphragm or bladder type tank Refer to Figure 52 for suggested piping when using a dia...

Page 48: ...m the system and will cause water logging of the tank This will result in water loss through the boiler relief valve due to over pressurization NEVER use an automatic air vent in a system equipped wit...

Page 49: ...Hi UPS 15 42F Spd 3 Star S 21 FX Spd 3 NRF 22 NRF 25 Spd 3 Astro 250 Spd 3 30 9 5 2 7 007 007 Med UPS 15 58 Spd 2 Star S 21 FX Spd 2 NRF 22 NRF 25 Spd 1 Astro 230 Spd 2 40 7 2 1 5 007 007 Lo UPS 15 58...

Page 50: ...own 3 Connect discharge piping to safe disposal location following guidelines in the WARNING below To avoid water damage or scalding due to relief valve operation as per local or state codes Install r...

Page 51: ...r compliance information and exemptions Controlling the Zones 1 The ECO control can be used to control space heating only domestic water heating only or both Refer to eld wiring beginning on page 60 f...

Page 52: ...nergyAct See page 127 for compliance information and exemptions Controlling the Zones 1 The ECO control can be used to control space heating only domestic water heating only or both Refer to eld wirin...

Page 53: ...connection Pipe from the near boiler piping to the DHW tank s boiler connections as shown 2 DHW as zone A DHW tank can be connected as a zone if a DHW tank is NOT already connected to the boiler To pr...

Page 54: ...2 000 Btuh total boiler input or see Figure 133 page 128 c If combustion air damper is used wire to boilers to prevent operation except after damper has opened ONLY air piping can be combined DO NOT u...

Page 55: ...ns using copper or steel pipe sized for the required ow rate It is recommended to pipe to boilers such that the rst boiler connection off the return manifold is piped to the furthest connection on the...

Page 56: ...55 6 Primary circulator 7 Expansion tank diaphragm type 8 System air eliminator 9 System automatic air vent 10 Pressure reducing valve 11 Check valve or back ow preventer as required by applicable cod...

Page 57: ...on the last boiler in the sequence When using a multiple boiler control with lead boiler rotation it is recommended that the boiler connected to the DHW tank is always set as the last boiler to operat...

Page 58: ...n minimum PVC for the piping to drain or condensate pump Use materials approved by the authority having jurisdiction In the absence of other authority PVC and CPVC pipe must comply with ASTM D1785 F44...

Page 59: ...th or substantial property damage DO NOT adjust or attempt to measure gas valve outlet pressure The gas valve is factory set for the correct outlet pressure This setting is suitable for natural gas an...

Page 60: ...left electrical entrances following the left side of the cabinet 3 Wires should be bundled together and secure with the provided wire ties to the wire tie bases located on the left side wire chase Two...

Page 61: ...holes provided on the two bent tabs along the right side of the boiler You may need to push the wire harness or other low voltage wires out of the way to access the holes 5 Find the grommet that is at...

Page 62: ...res this output to a Provide 120VAC to a system circulator such as on a zone valve system with system circulator b Provide 120VAC to a boiler loop circulator in primary secondary piping c Provide post...

Page 63: ...on page 127 2 Mount the outdoor sensor on an exterior wall shielded from direct sunlight or ow of heat or cooling from other sources The wire outlet on the sensor must be oriented DOWN to prevent wate...

Page 64: ...Wiring diagram schematic Figure 73 Schematic wiring diagram see Figure 74 page 65 for legend and notes Part number 550 142 190 1218 64 SERIES 2 GAS FIRED WATER BOILER Boiler Manual...

Page 65: ...Wiring diagram ladder Figure 74 Ladder wiring diagram see Figure 73 page 64 for schematic wiring diagram Part number 550 142 190 1218 65 SERIES 2 GAS FIRED WATER BOILER Boiler Manual...

Page 66: ...ature setting are summarized in Figure 75 below Verify that these settings are acceptable for the system type 9 If the system quali es for direct connect system piping guidelines on page 43 reference...

Page 67: ...mers if more than one system is calling highest priority starts rst Start circulators for this priority setup Calculate target temp If sensor temp is below target temp begin ring sequence Blower to ig...

Page 68: ...Figure 77 ECO control display screens and typical navigation ECO control operation continued Part number 550 142 190 1218 68 SERIES 2 GAS FIRED WATER BOILER Boiler Manual...

Page 69: ...NOT match the boiler the selection MUST be changed to the correct model number Failure to comply could result in severe personal injury death or substantial property damage Step 7 Navigate to the BOIL...

Page 70: ...e Figure 78 for the screen sequences up to the BOILER SETTINGS and HEATING SETTINGS menus 3 Adjust control settings as needed for the central heating and DHW systems supplied by the boiler 4 Wire the...

Page 71: ...tting will automatically return to 200 F if power is turned off The boiler will restart when power is restored 3 Use this control setting only to test the control s high limit function WWSD 1 WWSD sta...

Page 72: ...system 2 The factory default is 130 F This could be set as low as 60 F which would supply zero heat when outdoor temperature is 60 F because supply water temp would equal room temp 3 See examples in...

Page 73: ...nterval elapses 4 Boost will continue until the set point target temperature reaches the SUPPLY MAX setting 5 The purpose of boost is to compensate for changes in demand not addressed by the reset cur...

Page 74: ...or system OD RESET MAX F 50 100 70 Outdoor temp at which supply target reaches min OD RESET MIN F 20 50 0 Outdoor temp at which supply target reaches max Modulate On Diff F 2 10 5 Boiler turns on if t...

Page 75: ...tor will continue to run this amount of time after the burner is shut down when the call for heat is satis ed MIN MAX BLOWER RPM 1 Use to set minimum and maximum boiler inputs by setting minimum and m...

Page 76: ...WER SIGNAL ERRORS CONTROL FAULT IGNITION RETRIES MANUAL RESET CNT AUTO RESET CNT LOCKOUT HISTORY 1 FAULT NAME FAULT TYPE FAULT TIME HH MM AM FAULT DATE MM DD YY STATUS TEMPERATURES INPUTS OUTPUTS TEMP...

Page 77: ...nce and shut down boiler Outputs Status text Data Current operating status of the boiler Prepurge Ignition Heating or DHW Post Purge Warm Weather Shutdown WWSD Fault Gas Valve on off Data Control s ga...

Page 78: ...ata Software version of the microprocessor on the display circuit board Main Micro E Data Software version of the main microprocessor on the control circuit board Second Micro E Data Software version...

Page 79: ...d ll connection to the system 3 Close zone isolation valves 4 Open quick ll valve on cold water make up line 5 Open purge valve 6 One zone at a time open the isolation valves Allow water to run throug...

Page 80: ...r inhibitor test kit indicates low level the inhibitor level may not be suf cient to prevent corrosion 3 Test antifreeze concentration Testantifreezeconcentrationatleastannually If concentration is lo...

Page 81: ...rnal circuits one at a time and check the voltmeter reading across the incoming wires 3 There should NEVER be a voltage reading 4 If a voltage does occur under any condition check and correct the exte...

Page 82: ...er at once Find the leak source with bubble test and repair immediately Do not start boiler again until corrected Failure to comply could result in severe personal injury death or substantial property...

Page 83: ...hecks continued Figure 92 Operating instructions WARNING Verify that the control is set for the correct boiler model before proceeding Part number 550 142 190 1218 83 SERIES 2 GAS FIRED WATER BOILER B...

Page 84: ...g Note whether CO2 increases or decreases b Turn the screw slightly in the direction needed to increase or decrease reading as needed Allow the boiler to stabilize and take another reading Continue un...

Page 85: ...are acceptable at low re verify high re readings again Restore ring rate to AUTO DO NOT adjust throttle on low re 7 Consult your localWeil McLain representative if acceptable results cannot be obtain...

Page 86: ...155 Throttle screw ONLY for use by a quali ed technician using calibrated combustion test instruments Figure 96 Acceptable combustion values measured values must be within the ranges given below Part...

Page 87: ...west setting and veri ed boiler goes off Natural gas input measured page 82 Incoming gas pressure checked by connecting manometer to gas valve ahead of boiler Gas pressure must be at least the minimum...

Page 88: ...that domestic hot water is being supplied to xtures at the correct temperature Every 6 months Check boiler piping gas and water Operate relief valve Service technician see page numbers indicated for d...

Page 89: ...must be replaced Failure to replace the items above when needed could result in severe personal injury death or substantial property damage 1 No later than 12 months after the boiler is installed perf...

Page 90: ...cer 4 Vacuum any sediment from the inside of the boiler and components Remove any obstructions Do not use solvents to clean any of the boiler components The components could be damaged resulting in un...

Page 91: ...the water as it returns from the system Do not use automatic air vents in systems with closed type tanks The air will escape from the system instead of returning to the tank Eventually the tank will w...

Page 92: ...aner or compressed air Do not use compressed air to clean burner if performed inside a building 3 To access the burner remove the heat exchanger cover plate following the procedure beginning on pages...

Page 93: ...boiler return temperature 2 The ue gas temperature should be no more than 50 F higher than the boiler return temperature 3 If the ue temperature is higher than this shut down the boiler allow to cool...

Page 94: ...taken to avoid contact with hot water and to avoid water damage Before operating lever check to see that a discharge line is connected to this valve directing the ow of hot water from the valve to a p...

Page 95: ...en thermostat wire nuts and ground 2 Make sure all external limit controls are either installed and closed or temporarily jumpered for testing 3 Make sure that connectors to ECO control are securely p...

Page 96: ...s the temperature difference between the sensors must be no more than 10 F 2 Use the resistance values at 32 F 60 F 70 F and 212 F to measure the sensor resistance at known temperatures ice point room...

Page 97: ...lly but others may require the use of the control s manual reset screen to reset the fault Make sure to determine the causes of outages Do not leave the boiler operating without a complete diagnosis P...

Page 98: ...ler s condition at the time of the three previous faults or errors This information is available to view in Contractor Menus under DIAGNOSTICS by selecting ERRORS The control will display the followin...

Page 99: ...KLY Occurs if supply water temperature in heat exchanger rises faster than 2 F per second during the rst two minutes the burner is on Automatically resets after 1 minute delay or using manual reset on...

Page 100: ...display Follow procedure for above for SHORT and OPEN sensor conditions to properly diagnose sensor In addition inspect heat exchanger combustion chamber and ue ways for abnormal wear or buildup Insp...

Page 101: ...manual reset if control is in lockout Check wire harness connections between gas valve and control module Check resistance between control and gas valve Disconnect low voltage wires connected to the l...

Page 102: ...lity of leakage or ue gas feedback into the air line Dirty burner and or heat exchanger will cause high back pressure and poor ignition Follow procedure in maintenance section of this manual to clean...

Page 103: ...t up and check out Removing and reinstalling components can change boiler behavior After any maintenance procedure you must prove the boiler is operating correctly To do so follow the complete procedu...

Page 104: ...ble tube with tape Then use a length of PVC pipe long enough to locate the funnel as directed 5 Insert a funnel into the open end of the exible tube Wrap the funnel to tube joint with tape so it will...

Page 105: ...se improper and dangerous operation f Remove the four 4 10mm hex nuts item 9 that secure the heat exchanger cover plate item 6 g Disconnect the ground wire and ignition cable from the igniter item 7 h...

Page 106: ...Figure 113 Accessing the burner or heat exchanger see Legend on page 105 Part number 550 142 190 1218 106 Cleaning heat exchanger ue side 70 continued SERIES 2 GAS FIRED WATER BOILER Boiler Manual...

Page 107: ...stall the control module item 16 to the control bracket and reconnect all connectors and wire harnesses 3 Reinstall the burner item 10 and burner gasket item 13 on the cover plate item 6 Tighten the b...

Page 108: ...and ignition cable from the igniter item 7 Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation h Lift the cover plate burner assemb...

Page 109: ...Figure 115 Accessing the burner or heat exchanger see Legend on page 108 Part number 550 142 190 1218 109 Cleaning heat exchanger ue side 110 continued SERIES 2 GAS FIRED WATER BOILER Boiler Manual...

Page 110: ...for reference 2 Reinstall the control module item 14 to the control bracket and reconnect all connectors and wire harnesses 3 Reinstall the burner item 9 and burner gasket item 12 on the cover plate i...

Page 111: ...6 by removing the two 5 16 locknuts attaching them This will make removing the cover plate signi cantly easier 4 Remove the heat exchanger cover plate assembly a See Figure 117 page 113 part A part C...

Page 112: ...t exchanger a Seat the heat exchanger cover plate gasket on the heat exchanger sealing surface b Tiltheatexchangercoverplatefrontlipdownwarduntilbacklip clears cabinet and burner can slide inside comb...

Page 113: ...attempt to remove the burner from the heat exchanger cover plate without first removing the heat exchanger cover plate from heat exchanger Damage to refractory will result This damage is dif cult to...

Page 114: ...tions on page 89 of this manual Failure to comply could result in severe personal injury REINSTALL Jacket door Inspect boiler jacket door gaskets on front of cabinet and reinstall boiler jacket door a...

Page 115: ...ain sidewall vent air cap termination kit for AL29 4C vent pipe and PVC air pipe Includes sidewall vent air termination cap inside and outside cover plates and mounting hardware openings are sized for...

Page 116: ...ket 560 907 719 190 Boiler flue pipe Internal flue pipe and gasket 560 907 720 200 Air inlet adapter Top air inlet adapter with internal gasket 560 907 718 210 Gasket pipe adapter to cabinet Gasket pi...

Page 117: ...d Figure 121 Jacket assembly ECO 70 110 155 see Figure 120 page 116 for part numbers Go to www weil mclain com to locate Weil McLain distributors Part number 550 142 190 1218 117 SERIES 2 GAS FIRED WA...

Page 118: ...h to internal flue pipe 383 700 104 150 Refractory insulation silicone sealant 383 700 105 383 700 244 160 Heat exchanger cover plate refractory silicone and gaskets includes items 150 170 200 220 and...

Page 119: ...locate Weil McLain distributors Figure 123 Heat exchanger assembly ECO 70 110 see Figure 122 page 118 for part numbers Replacement parts continued Part number 550 142 190 1218 119 SERIES 2 GAS FIRED...

Page 120: ...nsate dish 383 700 205 180 Gasket to seal condensate dish to internal flue pipe 383 700 104 190 Heat exchanger cover plate refractory and gaskets includes items 200 230 260 and 290 383 700 184 200 Ref...

Page 121: ...Figure 125 Heat exchanger assembly ECO 155 see Figure 124 page 120 for part numbers Replacement parts continued Part number 550 142 190 1218 121 SERIES 2 GAS FIRED WATER BOILER Boiler Manual 0...

Page 122: ...r clip Clip 562 650 116 270 Gas valve adapter block Threaded block o ring and screws 563 910 031 271 Gas flex line adapter NPT to flare adapter 562 302 576 275 Gas valve outlet o ring O ring 590 318 0...

Page 123: ...eil McLain distributors Replacement parts continued Figure 128 Combustion components for ECO 70 110 155 see Figure 126 page 122 for part numbers 0 110 155 70 Part number 550 142 190 1218 123 SERIES 2...

Page 124: ...0 591 392 030 Wire harness ECO 155 591 392 002 170 Wire harness display not shown Connects display to control 591 392 004 180 Ignition cable not shown Ignition cable 591 391 997 190 F1 3 amp fast blow...

Page 125: ...Weil McLain distributors Replacement parts continued Figure 130 Controls and electrical assemblies ECO 70 110 155 see Figure 129 page 124 for part numbers 0 Part number 550 142 190 1218 125 SERIES 2 G...

Page 126: ...70 110 1 1 4 NPT 155 3 Control display and navigation buttons 4 Electrical entrance openings 5 Vent connection 3 PVC 6 Gas connection 7 Condensate trap nozzle 8 Air connection 3 PVC Figure 131 Dimens...

Page 127: ...d for normal piping and pickup Ratings are based on a piping and pickup allowance of 1 15 An additional allowance should be made for unusual piping and pickup loads 4 ECO boilers must be direct vented...

Page 128: ...individually piped or manifolded See Figure 60 page 54 for manifolded air piping Boilers in system Model ECO Total Input Output Heating capacity Boiler H P Net water ratings Manifolded combustion air...

Page 129: ...odel ECO ________ Supply Max F Boiler Supply F High Altitude Yes ____ NO ____ Supply Min F OD Reset Max F WWSD Temp F OD Reset Min F Adjust Outdoor F Mod On Diff F On Diff F Mod Off Diff F Off Diff F...

Page 130: ...eratures Temperatures Status Status Status Boiler out 1 Boiler out 1 Boiler out 1 Boiler out 2 Boiler out 2 Boiler out 2 Boiler in Boiler in Boiler in Flue 1 Flue 1 Flue 1 Flue 2 Flue 2 Flue 2 Outdoor...

Page 131: ...Part number 550 142 190 1218 131 Notes SERIES 2 GAS FIRED WATER BOILER Boiler Manual...

Page 132: ...SERIES 2 GAS FIRED WATER BOILER Boiler Manual Part number 550 142 190 1218 132...

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