ECR International Utica Boilers MAC-115 Installation, Operation & Maintenance Manual Download Page 81

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APPENDIX A - WIRING DIAGRAMS

A-5 MODEL 205 - Combi

240013354 REV A [07/01/2021]

Summary of Contents for Utica Boilers MAC-115

Page 1: ...anufactured by ECR International Inc 2201 Dwyer Avenue Utica NY 13501 Tel 800 325 5479 www ecrinternational com MAH 100 MAC 115 MAH 125 MAC 150 MAH 165 MAC 205 CONDENSING WALL MOUNTED GAS FIRED BOILER...

Page 2: ...MAC 205...

Page 3: ...CONTENTS INSTALLATION OPERATION AND MAINTENANCE MANUAL 240013354 APPLICATION GUIDE 240011430 COMMISSIONING GUIDE 240011376 REQUIRED INSPECTION SPECIAL 240011561 BACK COVER...

Page 4: ...MAH 165...

Page 5: ...er Avenue Utica NY 13501 Tel 800 325 5479 www ecrinternational com PN 24013354 REV A 07 01 2021 CONDENSING WALL MOUNTED GAS FIRED INSTALLATION OPERATION MAINTENANCE MANUAL Models COMBI MAC 115 MAC 150...

Page 6: ...4x2 Gaskets Includes Essential Documents and Warranty 11x17 Wire Diagrams Drain Valve 5 GPM Flow Restrictor 205 Combi Only Used for Valve Connections Document Package Wall Mount Template Manifold Mani...

Page 7: ...9 Start Up Procedure 47 9 1 Central Heating System Connections Heat Only 47 9 2 Central Heating System Connections Combi 48 9 3 System Start Up 49 9 4 Fill Condensate Trap With Water 49 9 5 Control Pa...

Page 8: ...t 0 035 gal 0 13 L 0 053 gal 0 23L 0 10 gal 0 37 L SYSTEM When boiler is operating at maximum operating temperature providing heating with all heat emitters operating pressure gauge should not indicat...

Page 9: ...tom View Dimensions 41 2 7 51 2 3 51 2 101 2 125 HEAT ONLY Bottom View Dimensions 101 2 4 D E I G C B 9 1 2 31 2 D E I G C B F D E I G C B F H D E I G C B F 115 COMBI Bottom View Dimensions 5 31 2 31...

Page 10: ...zing needs can scald and cause permanent injury Children elderly and infirmed or physically handicapped persons are more likely to be permanently injured by hot water Never leave them unattended in ba...

Page 11: ...able water Indirect heating is acceptable Heat water with non hydronic heating system chemicals present example swimming pool water Toxic chemicals such as those used for boiler treatment shall not be...

Page 12: ...with Motor 6 Water Safety Thermostat 7 NTC Heating sensor Flow Return QTY 2 1 Shown for clarity 8 Flue Sensor 9 Pressure Switch 10 Coaxial Flue Connector 11 Heat Exchanger Temperature Protector 12 He...

Page 13: ...with Motor 6 Water Safety Thermostat 7 NTC Heating sensor Flow Return QTY 2 1 Shown for clarity 8 Flue Sensor 9 Pressure Switch 10 Coaxial Flue Connector 11 Heat Exchanger Temperature Protector 12 He...

Page 14: ...hanger Temperature Protector 10 Heat Exchanger 11 Burner Door Temperature Sensor 12 Burner not shown 13 Ignition Electrode 14 Flame Detection Electrode 15 Air Gas Blend Manifold 16 Air Vent 17 Venturi...

Page 15: ...5 Controlled Fast Fill 6 Gas Valve 7 NTC DHW Sensor 8 Low Water Pressure Cutoff 9 3 Way Valve with Motor 10 Check Valve 11 DHW Heat Exchanger 12 Water Safety Thermostat 13 NTC Heating sensor Flow Retu...

Page 16: ...NTC Heating sensor Flow Return QTY 2 1 Shown for clarity 14 Flue Sensor 15 Pressure Switch 16 Coaxial Connector 17 Heat Exchanger Temperature Protector 18 Heat Exchanger 19 Burner not shown 20 Igniti...

Page 17: ...Flue Sensor 13 Coaxial Connector 14 Heat Exchanger Temperature Protector 15 Heat Exchanger 16 Burner Door Temperature Sensor 17 Burner not shown 18 Ignition Electrode 19 Flame Detection Electrode 20 A...

Page 18: ...ectricity Multiple Boilers can be wall mounted placed side by side or back to back Observe service clearances in all installations For Direct Vent installations air vents are not required in room boil...

Page 19: ...6 in 345 mm 4 2 Clearances 165 205 211 2in 571 5 mm 1 1 3 4 3 4 in in 45 mm 45 mm Left Side View of Boiler Front View of Boiler Service Clearances Combustible Clearances 1 3 4 in 45 mm 17 3 4 in Top V...

Page 20: ...of hole for flue 5 Cut hole in wall for coaxial flue See sizing below 100 115 125 150 4 3 8 110 mm diameter 165 205 5 5 16 135 mm diameter 6 Pre pipe supply and return water connections with factory f...

Page 21: ...ipe and fittings with thermal insulation shall be prohibited Failure to follow these instructions could result in death or serious injury Note Follow venting manufacturer s equivalent lengths for spec...

Page 22: ...to common venting system are located and other spaces of building Turn on clothes dryer and any appliance not connected to common venting system Turn on exhaust fans such as range hoods and bathroom...

Page 23: ...prohibited Use of cellular core PVC for venting flue gas could result in death or serious injury Coaxial venting shall be fastened with screws Dual flue venting is NOT fastened with screws Install an...

Page 24: ...o Polypropylene venting for the exhaust pipe 5 COMBUSTION AIR AND VENT PIPING VENT MATERIAL OPTIONS Maximum Equivalent Vent Length Shown 165 205 Vent Type Vent Size Vent Material Intake L1 Exhaust L2...

Page 25: ...rt flue back into intake air vent and pass them through hole in wall Check all measurements before cutting Clearance to combustible materials is zero when using coaxial vent system After installing ve...

Page 26: ...nce to ventilated soffit FIGURE 5 5 Coaxial Vertical Exhaust CAN BE USED ON ALL SIZES 12 305 mm Minimum Separation Manufacturer Recommends Greater Separation FIGURE 5 7 Coaxial Horizontal Exhaust CAN...

Page 27: ...nsition from Coaxial at the top of the boiler to Twin Pipe polypropylene venting an adapter kit is available C Twin Pipe Separated Flue Exhaust and combustion air intake are not located in same genera...

Page 28: ...applications Follow venting manufacturer s instructions for applying the securing mechanism on twin pipe polypropylene venting Example for Natalini venting system See Figure 5 11 For other venting sys...

Page 29: ...al separation between combustion air intake and vent of different appliances 15 381 mm Max horizontal length of vent Min vent intake between different appliances 12 305 mm Max allowable total vertical...

Page 30: ...rs required in all multiple boiler installations FIGURE 5 22 2 60 mm ONLY Twin Pipe Side Wall Vent CAN BE USED ON ALL SIZES 3 80 mm Min 24 610 mm Max Separation See Grade Snow Ice Combustion Air Vent...

Page 31: ...t lengths based on equivalent straight runs only Include rigid pipe and fittings in overall equivalent length calculations Flexible venting installations use single wall polypropylene to pass flue gas...

Page 32: ...r 9 229 mm 9 229 mm G Clearance to inside corner 36 456 mm 36 456 mm H Clearance to each side of center line extended above meter regulator assembly 3 ft 0 9 m within a height of 15 ft 4 5 m above the...

Page 33: ...ch Condensate from Boiler is slightly acidic and may cause property damage if overflow Field source condensate neutralizing kit as required by authority having jurisdiction or for environmentally frie...

Page 34: ...stall them to properly clean the system When purging installations that include standing iron radiators and systems with manual vents at high points start with nearest manual air vent Open the vent un...

Page 35: ...f Valve 6 2 Special Conditions Note System piping exposed to freezing conditions Use inhibited propylene glycol solutions certified by fluid manufacturer for use with closed water heating system Do no...

Page 36: ...rol Boiler control allows domestic hot water prioritization WARNING Burn and scald hazard Verify all plastic caps are removed from boiler connections Failure to follow these instructions could result...

Page 37: ...RE TEE OR LWCO Note 1 To Drain Check Local Codes for Maximum Distance to Floor Arrange piping to prevent water dripping onto boiler 1 Return 5 gpm Limiter Factory Installed 205 Only Purge Valve Magnet...

Page 38: ...to the system ground Ground in accordance with the requirements of the authority having jurisdiction or in the absence of such requirements with the National Electrical Code NEC or Canadian Electrica...

Page 39: ...fore entering the boiler The strainer prevents any sedimentation and debris from your water supply piping from entering the boiler Debris carried from the water supply will clog DHW water flow sensor...

Page 40: ...ber The flame sensor will acknowledge the presence of the flame in the combustion chamber and send a signal to the control board Temperature sensors will send a signal to the control board allowing th...

Page 41: ...4 GAS SUPPLY REQUIRED MODEL NATURAL GAS A LIQUID PROPANE E MAH 100 92 ft3 h 2 60 m3 h 38 ft3 h 2 61 m3 h MAC 115 114 ft3 h 3 22 m3 h 47 ft3 h 1 32 m3 h MAH 125 118 ft3 h 3 30 m3 h 51 ft3 h 1 48 m3 h M...

Page 42: ...tallic pipe and Corrugated Stainless Steel Tubing CSST is manufacturer recommended for best performance Use of Gas Appliance Connectors flexible connectors typically used for gas stoves or water heate...

Page 43: ...8 118 137 227 265 60 68 80 131 153 107 126 207 241 80 60 69 113 132 94 109 178 208 100 54 62 101 118 85 98 159 186 INTENDED USE Pipe Sizing Between Natural Gas Meter or Propane Single or Second Stage...

Page 44: ...noncorrosive detection fluid or other leak detection method acceptable to authority having jurisdiction Do not use matches candles open flames or other methods that can provide ignition source Correc...

Page 45: ...al location on all sizes 8 ELECTRICAL CONNECTIONS Note Wiring diagrams can be found in Appendix A of this Manual 8 3 Electrical Connections Boiler requires 120V 60Hz power supply Verify electrical sup...

Page 46: ...rated in the power supply terminal block To check or replace fuse pull out black fuse carrier TERMINAL BLOCK M1 L Live brown N Neutral light blue Ground yellow green 1 2 contact for 120V Room Thermost...

Page 47: ...es OAS sensor when wired to M2 terminal block Display changes to show current default Kt value 80 Note display value 2 When operating in CH mode boiler setpoint is determined by the Kt value selected...

Page 48: ...mperatures below 40 F 40 C maximum heating flow temperature set point no longer increases curves shown on graph become horizontal Boiler set point will override sensor set point Flow temp Outside temp...

Page 49: ...turer Use of after market sensors will diminish boiler performance 10K Sensor 8 9 Management of 0 10V Input The functions with 0 10V regulator are activated by means of their parameters To enable 0 10...

Page 50: ...46 8 ELECTRICAL CONNECTIONS FIGURE 8 8 Circulator Pump Connections For more information please review the application guide received with your boiler 240013354 REV A 07 01 2021...

Page 51: ...ID Hose 3 4 NPT I Heating supply connection 3 4 22 2 mm 1 25 4 mm J Optional Indirect DHW connection 3 4 22 2 mm na MANIFOLD MAH 100 MAH 125 9 START UP PROCEDURE 9 1 Central Heating System Connections...

Page 52: ...n for Combi 1 2 15 9 mm 3 4 NPT E Gas shutoff connection 3 4 22 2 mm F Boiler Fast Fill External to Boiler NA G DHW outlet indirect storage tank connection 1 2 15 9 mm 3 4 NPT H Drain connection for c...

Page 53: ...s out Close drain as soon as water appears During initial system air purge open valve connected to top left of heat exchanger Open four 4 full turns counterclockwise until steady stream of water is wi...

Page 54: ...acturing information 06 Heating return temperature F C 16 Manufacturing information 07 Thermo fuse status 000 001 17 Fan speed 17 x100 08 Not used 18 Manufacturing information DHW temperature adjustme...

Page 55: ...TICE All connections shall be made and water added before performing this function 9 6 Prior to Commissioning Check system pressure is correct Power boiler Open gas tap positioned under boiler Select...

Page 56: ...3 Gas Inlet Tap Pi 9 START UP PROCEDURE PI Gas Supply Inlet Pressure Tap IMPORTANT INFORMATION A If venting or gas recognition function is interrupted by power blackout start function again when power...

Page 57: ...bustion analyzer for combustion analysis During normal operation boiler performs combustion control cycles In this phase CO values higher than 400 ppm can occur for brief periods of time 9 START UP PR...

Page 58: ...mple Natural Gas Gas flow from Meter 2 cu ft Measured time 72 seconds 3600 x 2 cu ft 100 MBH 72 seconds For Propane LP Input MBH 9160 x cu ft seconds For Metric formulas See Glossary 2 Compare measure...

Page 59: ...minimum setpoint 10V maximum setpoint 2 Power Setpoint 3V minimum power 10V maximum power 0 P82 4 Disabled 3 Enabled 0 10V DC Input 4 P11 P12 Manufacturer information P13 Max heating output 0 100 100...

Page 60: ...200 20 0 52 41 75 100 22 0 59 47 81 900 24 0 67 53 88 700 26 0 74 59 95 500 28 0 80 65 102 300 30 0 88 71 109 200 32 0 96 75 112 600 33 0 100 80 Btu h kW MAH 165 MAC 205 27 400 8 0 0 0 31 300 9 2 4 3...

Page 61: ...water required during central heating period boiler automatically switches to hot water mode until demand is satisfied i e storage water is to required temperature This interruption in central heatin...

Page 62: ...ler only and not for complete Central Heating System 10 6 Pump If electricity is connected to the boiler regardless if power is On or Off and has not operated for 24 hours for heating or hot water boi...

Page 63: ...Verify proper operation after servicing Note Perform regular service and maintenance by qualified service agency at least once every 12 months to assure safe trouble free operation and maximum efficie...

Page 64: ...could result in death or serious injury CAUTION Label all wires prior to disconnection when servicing controls Wiring errors can cause improper and dangerous operation Failure to follow these instruc...

Page 65: ...serious injury 11 4 Draining the Boiler turn boiler off isolate electrical supply close boiler gas service cock allow boiler to cool drain boiler through onboard drain if available or external drain...

Page 66: ...erence across heating supply and return pipes at the boiler Check system for proper volume and pressure See page 4 for acceptable volume and pressure Turn off boiler Thoroughly flush water pipe work C...

Page 67: ...ersonnel D Ensure boiler controls and room thermostat if fitted are set to User s requirements E Tell User about sealed system pressure F Tell User if display is active and boiler has not operated for...

Page 68: ...DHW temp 140 F 60 C 1 2 Copper stub adapters included with boiler 240013354 REV A 07 01 2021 Model Number CH Input MBH 1 1 2 CH Heating Capacity MBH 1 3 Net AHRI Rating Water MBH 2 AFUE Maximum Minimu...

Page 69: ...DHW Flow rate 3 5 gpm 13 2 l min MAC 205 Max DHW flow rate 5 0 gpm 18 9 L min 12 3 High Altitude Ratings 12 4 High Altitude Chart GAS Natural LP Model Altitude 0 2 000 ft 0 610 m 2 000 10 000 ft 610...

Page 70: ...c head pump fit for installation on any type of single or double pipe heating systems The automatic air valve incorporated in the pump allows quick venting of the heating system Q WATER FLOW RATE MIN...

Page 71: ...circuit on wiring Check cable between control unit and boiler 109 Pre circulation alarm temporary fault Check correct circulation of water and pump Check supply and return wiring is correct 110 Safety...

Page 72: ...nd the combustion levels E70 Flame signal problem micro interruption of the flame signal Check cable and integrity of the sensing electrode verify the continuity between burner and earth E73 Combustio...

Page 73: ...P34 C02 P35 C03 P36 C04 P37 C05 P38 C06 RESET ANOMALY P39 C07 P40 C08 P41 C09 FAILURE CODE NUMBER OF TIMES OCCURRED SYSTEM STATUS CODES 0 STANDBY 1 DHW ON 2 CHIMNEY SWEEP ACTIVE 3 CH ON 4 PREHEAT ON 5...

Page 74: ...wood compressed paper plant fibers or other materials capable of being ignited and burned Such material shall be considered combustible even though flame proofed fire retardant treated or plastered C...

Page 75: ...or servicing of appliances and equipment Experienced in such work Familiar with all precautions required Complies with all requirements of authority having jurisdiction SAFETY RELIEF VALVE Valve desig...

Page 76: ...eturn Sensor Sonde NTC retour 10 NTC flow sensor Sonde NTC d part 11 Remote User Interface or Open Therm 12 Prov for Outside Sensor Pred Sonde Ext rieure 13 Link 24V Joint 24V 14 Flame Sensing Electro...

Page 77: ...73 APPENDIX A WIRING DIAGRAMS A 2 MODEL 125 Heat Only 240013354 REV A 07 01 2021...

Page 78: ...74 APPENDIX A WIRING DIAGRAMS A 3 MODEL 165 Heat Only 240013354 REV A 07 01 2021...

Page 79: ...75 APPENDIX A WIRING DIAGRAMS A 1 MODEL 115 Combi 240013354 REV A 07 01 2021...

Page 80: ...76 APPENDIX A WIRING DIAGRAMS A 4 MODEL 150 Combi 240013354 REV A 07 01 2021...

Page 81: ...77 APPENDIX A WIRING DIAGRAMS A 5 MODEL 205 Combi 240013354 REV A 07 01 2021...

Page 82: ...__________ Installation instructions have been followed Checkout procedure and adjustments performed Maintenance and Service issues reviewed with owner maintenance person Installation booklet affixed...

Page 83: ...decreases This feature is equipped with an override which is provided primarily to permit the use of an external energy management system that serves the same function THIS OVERRIDE MUST NOT BE USED U...

Page 84: ...NY 13501 Tel 800 325 5479 www ecrinternational com PN 240011430 REV O 07 01 2021 This manual has been prepared for use with the appropriate Installation Operation and Maintenance Manual APPLICATION G...

Page 85: ...5 With Zone Circulators Piping Diagram 20 115 150 205 With Zone Circulators Wiring Diagram 21 115 150 205 With Zone Valves Piping Diagram 22 115 150 205 With Zone Valves Wiring Diagram 23 External Buf...

Page 86: ...all requirements before beginning installation 3 Installation shall conform to requirements of authority having jurisdiction or in absence of such requirements United States National Fuel Gas Code ANS...

Page 87: ...ose 3 4 NPT I Heating supply connection 3 4 22 2mm 1 25 4mm J Optional Indirect DHW connection 3 4 22 2mm na MANIFOLD 100 125 115 150 LABOR SAVING PIPING MANIFOLDS NEAR BOILER PIPING CONNECTIONS 100 1...

Page 88: ...as shutoff connection 3 4 22 2mm F Cold DHW inlet tap 1 2 15 9mm na G DHW outlet 1 2 15 9mm 3 4 NPT H Drain connection for condensate 13 16 21mm ID Hose 3 4 NPT I Heating supply connection 3 4 22 2mm...

Page 89: ...be maintained Limit combined supply and return pipe lengths to maximum linear lengths of 20 ft 6 1 m between boiler and closely spaced tees when minimum in NPT pipe size is used Linear length may be i...

Page 90: ...cut for use as shown on page 24 increase pipe size to match Buffer tank connections as shown Locate tank as close to boiler as possible Use of Indirect Water Heater DHW Heating Only Boiler Note Sensor...

Page 91: ...H2O Buffer Tank Reference the zone control manufacturer instruction manual for control operation and priority setting of DHW zones Note DO NOT use 120 V thermostat terminals M1 1 and 2 Provided Wirin...

Page 92: ...SS VALVE DIVERTER VALVE T P OR RELIEF VALVE THERMOSTATIC MIXING VALVE DHW INDIRECT TANK INDIRECT TANK AQUASTAT 10K INDIRECT DHW TANK SENSOR TEMPERATURE PRESSURE GAUGE EXPANSION TANK FLAT PLATE HEAT EX...

Page 93: ...CIRCULATORS DHW TANK PIPING DIAGRAM 100 125 W ZONE CIRCULATORS DHW TANK PIPING DIAGRAM MAGNETIC DIRT SEPARATOR 1 1 Locate shut off valve after any field installed LWCO Shut off Purge Valve PN 24001143...

Page 94: ...Y Fuse ZONE MODULE TO EXPANSION Transformer PTC 12A 250V 115 Vac FIELD SUPPLIED POWER PER NEC AND LOCAL CODES Z2 Z3 ZONE THERMOSTATS Domestic Hot Water Tank w Sensor 1 2 3 4 5 6 7 8 9 10 VAC 24 G M2 M...

Page 95: ...LD SUPPLIED POWER PER NEC AND LOCAL CODES Z2 Z3 ZONE T STATS 1 2 3 4 5 6 7 8 9 10 VAC 24 M2 M2 terminal strip G on boiler Domestic Hot Water Tank 100 125 W INDIRECT ZONE CIRCULATORS DHW TANK W T STAT...

Page 96: ...5 WITH ZONE VALVES DHW TANK PIPING DIAGRAM 100 125 WITH ZONE VALVES DHW TANK MAGNETIC DIRT SEPARATOR 1 Shut off Purge Valve 1 Locate shut off valve after any field installed LWCO PN 240011430 REV O 07...

Page 97: ...NEC AND LOCAL CODES PRIMARY PUMP ZONE THERMOSTATS ZONE VALVES VANNES DE ZONE 4 Wire Valve 3 Wire Valve 1 2 3 4 1 2 3 Domestic Hot Water Tank w Sensor 1 2 3 4 5 6 7 8 9 10 VAC 24 M2 M2 terminal strip o...

Page 98: ...FIELD SUPPLIED POWER PER NEC AND LOCAL CODES Water Tank PRIMARY PUMP ZONE THERMOSTATS ZONE VALVES VANNES DE ZONE 4 Wire Valve 3 Wire Valve 1 2 3 4 1 2 3 w T Stat 1 2 3 4 5 6 7 8 9 10 VAC 24 M2 G 100...

Page 99: ...6 165 WITH ZONE CIRCULATORS PIPING DIAGRAM MAGNETIC DIRT SEPARATOR 1 Shut off Purge Valve 1 Locate shut off valve after any field installed LWCO 165 WITH ZONE CIRCULATORS PN 240011430 REV O 07 01 2021...

Page 100: ...C 12A 250V Domestic Hot 115 Vac FIELD SUPPLIED POWER PER NEC AND LOCAL CODES DHW Z2 Z3 Water Tank ZONE THERMOSTATS w T Stat 1 2 3 4 5 6 7 8 9 10 VAC 24 M2 G 165 INDIRECT ZONE CIRCULATORS DHW TANK W T...

Page 101: ...18 165 WITH ZONE VALVES 165 WITH ZONE VALVES PIPING DIAGRAM MAGNETIC DIRT SEPARATOR 1 Shut off Purge Valve 1 Locate shut off valve after any field installed LWCO PN 240011430 REV O 07 01 2021...

Page 102: ...LIED POWER PER NEC AND LOCAL CODES Water Tank PRIMARY PUMP ZONE THERMOSTATS ZONE VALVES VANNES DE ZONE 4 Wire Valve 3 Wire Valve 1 2 3 4 1 2 3 4 1 2 3 w T Stat 1 2 3 4 5 6 7 8 9 10 VAC 24 M2 G 165 WIT...

Page 103: ...205 WITH ZONE CIRCULATOR PUMPS 115 150 205 WITH ZONE CIRCULATORS PIPING DIAGRAM MAGNETIC DIRT SEPARATOR 1 Shut off Purge Valve 1 Locate shut off valve after any field installed LWCO PN 240011430 REV O...

Page 104: ...4 3 2 1 4 3 2 1 4 3 2 1 NEC Class 2 Low Voltage 24Vac W R T T C W R T T C PRI PUMP ZC ZR DIGITAL LCD USER DISPLAY Fuse ZONE MODULE TO EXPANSION Transformer PTC 12A 250V 115 Vac FIELD SUPPLIED POWER PE...

Page 105: ...15 150 205 WITH ZONE VALVES 115 150 205 WITH ZONE VALVES PIPING DIAGRAM MAGNETIC DIRT SEPARATOR 1 Shut off Purge Valve 1 Locate shut off valve after any field installed LWCO PN 240011430 REV O 07 01 2...

Page 106: ...Low Voltage 24Vac W R T T C W R T T C PRI PUMP ZC ZR DIGITAL LCD USER DISPLAY Fuse ZONE MODULE TO EXPANSION Transformer PTC 12A 250V 115 Vac FIELD SUPPLIED POWER PER NEC AND LOCAL CODES ZONE THERMOSTA...

Page 107: ...it Using Internal Boiler Circulator Buffer Tank Piping When installing low mass systems additional water mass may be required to avoid short cycling by the boiler In these applications it is recommend...

Page 108: ...NK PIPING DIAGRAM NOTE Acceptable primary pump locations Either 1 or 2 For pump wiring see diagrams on pages 26 29 Buffer Tank On Central Heat Circuit With Primary Pump and Supplied Manifold PN 240011...

Page 109: ...26 EXTERNAL BUFFER TANK WIRING DIAGRAM Buffer Tank Pump Wiring Controlling A Primary Pump On A Combi Boiler With Zone Valves No Indirect Tank PN 240011430 REV O 07 01 2021...

Page 110: ...27 EXTERNAL BUFFER TANK WIRING DIAGRAM Buffer Tank Pump Wiring Controlling A Primary Pump On A Combi Boiler With Zone Pumps Argo ARM 4P Zone Control and A822 II PN 240011430 REV O 07 01 2021...

Page 111: ...W R NEC Class 2 Low Voltage T T C THERMOSTATS ZONE VALVES ZONE 3 ZONE 2 4 3 2 1 4 3 2 1 4 3 2 1 NEC Class 2 Low Voltage 24Vac W R T T C W R T T C PRI PUMP ZC ZR DIGITAL LCD USER DISPLAY Fuse ZONE MODU...

Page 112: ...4 804 69 8 1 170 14 0 4 574 71 6 1 125 15 8 4 358 73 4 1 081 17 6 4 152 75 2 1 040 19 4 3 958 77 0 1 000 21 2 3 774 78 8 962 23 0 3 600 80 6 926 24 8 3 435 82 4 892 26 6 3 279 84 2 858 28 4 3 131 86...

Page 113: ...r Kt setting To change default Kt value on boiler control use or CH Heating buttons Restrict the upper limit of the Kt curve by using Parameter P16 to set the maximum boiler water temperature P16 Defa...

Page 114: ...52 4 19 2 65 5 25 5 87 0 7 57 135 18 5 63 1 23 4 80 0 31 1 106 0 8 65 149 22 2 75 7 27 7 94 5 36 6 125 0 9 73 163 25 3 86 2 31 9 109 0 42 5 145 0 10 80 176 27 4 93 6 36 9 125 0 48 1 164 0 To activate...

Page 115: ...32 CIRCULATOR CONNECTIONS WIRING DIAGRAM Single Zone Circulator Wiring Using ARGO AR822 II PN 240011430 REV O 07 01 2021...

Page 116: ...retour 10 NTC flow sensor Sonde NTC d part 11 Remote User Interface or Open Therm 12 Prov for Outside Sensor Pred Sonde Ext rieure 13 Link 24V Joint 24V 14 Flame Sensing Electrode Electrode pr sence...

Page 117: ...34 MODEL 125 Heat Only 125 HEAT ONLY WIRING DIAGRAM PN 240011430 REV O 07 01 2021...

Page 118: ...35 MODEL 165 Heat Only 165 HEAT ONLY WIRING DIAGRAM PN 240011430 REV O 07 01 2021...

Page 119: ...36 115 COMBI WIRING DIAGRAM MODEL 115 Combi PN 240011430 REV O 07 01 2021...

Page 120: ...37 MODEL 150 Combi 150 COMBI WIRING DIAGRAM PN 240011430 REV O 07 01 2021...

Page 121: ...38 MODEL 205 Combi 205 COMBI WIRING DIAGRAM PN 240011430 REV O 07 01 2021...

Page 122: ...160 000 180 000 200 000 220 000 0 2 000 4 000 6 000 8 000 10 000 BOILER INPUT BTUH ALTITUDE FEET MODELS 165 205 CALCULATED EFFECTS OF HI ALTITUDE ON BOILER PERFORMANCE DHW MODE HEAT MODE NET RATNG HEA...

Page 123: ...WATER TANK PERFORMANCE CHART HEATING ONLY BOILERS 100 125 165 Notes 176 F Boiler Supply Water Temperature AHRI Conditions 50 F Inlet Water 240 GPH Flow Rate BOILER OUTPUT NEEDED FOR MAXIMUM PERFORMAN...

Page 124: ...CEC LWCO Wiring Diagram Low Water Cutoff LWCO Electrical Conduit J Box 120 V 60 HZ Conduit or Power Supply cord Polarized L1 N G GND L1 N GND BLK WHT 120 V 60 HZ Socket Polarized 120 V 60 HZ Cord Set...

Page 125: ...Check Local Codes for Maximum Distance to Floor Arrange piping to prevent water dripping onto boiler 1 Return 5 gpm Limiter Factory Installed 205 Only Magnetic Dirt Separator Purge Valve Purge Valve N...

Page 126: ...43 Low Water Cutoff Detail LOW WATER CUTOFF NO NO YES PN 240011430 REV O 07 01 2021...

Page 127: ...ty with a suitable meter NOTE These checks must be repeated after any servicing or fault finding 5 Ensure all external controls are calling for heat and check all external and internal fuses Before an...

Page 128: ...flashing NO 3 way valve open to central heating circuit YES Burner output modulates to maintain the temperature set YES YES YES YES YES Error E130 flashing NO YES Burner goes out YES Go to section I N...

Page 129: ...conds and for 5 attempts YES NO YES Burner lights YES YES Error E109 flashing NO Error E110 flashing YES NO NO NO NO DHW flow rate more than 21 min Error 160 flashing Go to section C Error 160 flashin...

Page 130: ...Wiring Diagram NO Replace PCB Fan connections correct at fan and PCB Connectors X11 X23 See Wiring Diagram YES NO 120V between PCB connector x13 pump terminal Blue and PCB connector x11 pump terminal...

Page 131: ...48 3 FAULT SOLUTION SECTIONS PN 240011430 REV O 07 01 2021...

Page 132: ...2 is there approx 5 V DC between the green and black NO terminals Check flow temperature sensor connections and position Sensors swapped Cold resistance approximately 1OkO 77 F CH sensors resistance r...

Page 133: ...approximately 5 VDC between the Red and Blue wires See Wiring Diagrams With water running through DHW circuit measure red and white wire for 2 8 VDC for flow triggering Check DHW NTC senor for proper...

Page 134: ...51 Parameter ID Changed From Changed To Date Reason PARAMETER CHANGE HISTORY PN 240011430 REV O 07 01 2021...

Page 135: ...All specifications subject to change without notice 2021 ECR International Inc 2201 Dwyer Avenue Utica NY 13501 Tel 800 325 5479 www ecrinternational com BDR THERMEA GROUP...

Page 136: ...TION ASSURE FACTORY SUPPLIED CONVERSION LABEL IS APPLIED TO PRODUCT IF CONVERTING TO LP IMPORTANT Gas type Check Ensure the maximum heat exchange to the system in Heating or DHW mode DHW request in or...

Page 137: ...imum l installation de chauffage ou de production d ECS afin d viter que la chaudi re ne s teigne suite un probl me de surchauffe INTERRUPTION DE LA FONCTION Si la fonction de d sa ration ou d identif...

Page 138: ...ver checking combustion chamber Spark Electrode Clean Set gap according to IOM directions Clean electrode with plumbers cloth to remove oxides Flame Sensor Clean sensor Condensate Neutralizer Check co...

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Summary of Contents for Utica Boilers MAC-115

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Summary of Contents for Utica Boilers MAC-115

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