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1.4

Sequence of Operation

Operational State

User Interface Display

Explanation

If flame detected before Gas Valve

opens during ignition boiler will

lockout.
Please refer to troubleshooting guide.

Gas Valve energized to deliver air/fuel

to burner.

If flame undetected after 3 seconds

boiler will de-energize Gas Valve and

enter post purge mode for 30 seconds.
Ignition attempted 5 times before

lockout.

Boiler will run provided all operational

and safety devices are within limits
Refer to for more information.
Control module adjusts firing rate

according to heating demand. When

Boiler detects demand met, will enter

post purge mode then standby mode.

If simultaneous demand for Central

Heat and DHW, boiler will enter DHW

Priority Mode.
Priority mode limits amount of time

boiler can run in DHW mode to meet

CH demand.
Max DHW Priority Time setting

determines maximum time allowed for

DHW heating mode.
Please refer to section Appendix A

section 1.5 for more information.

Flame

Detected?

Gas Valve

Energized

Flame

Detected?

Heat Demand

Met?

DHW

Priority

Mode

Simultaneous

DHW + CH

Demand?

Yes

See Max DHW

Priority Time

Setting

After 2 seconds

After 3 seconds

30 second

post purge

Yes

Lockout

Error A21

Note:

5 Ignition

trials,

then

Lockout A01

APPENDIX A - CONTROL MODULE

Содержание VX-050

Страница 1: ...PERATION MAINTENANCE MANUAL An ISO 9001 2008 Certified Company P N 240010618 Rev B 08 2014 Models VX 050 VX 075 VX 100 VX 150 VX 200 Manufactured by ECR International Inc 2201 Dwyer Avenue Utica NY 13...

Страница 2: ...s Stopper Rubber 5 16 2 ea 15 Used for packaging holes on back of boiler Plastic Plug 2 ea 16 Used for packaging holes on back of boiler Outdoor Sensor 17 Used for measuring outside temperature Critic...

Страница 3: ...22 56 4mm 2 51mm Location H 2 33 59mm 3 76mm Location I 9 32 237mm 11 279mm Gas Connection Location J 3 06 77 7mm 4 6 117mm Size K 1 2 NPT 3 4 NPT Condensate Drain Connection I 3 4 NPT 3 4 NPT Weight...

Страница 4: ...tion 30 6 10 Condensate Piping 30 7 Gas Supply Piping 31 8 Electrical Connections 33 8 3 Line Voltage Connections 33 8 4 External Connections 33 9 Start Up Procedure 35 9 6 Perform CSD 1 Compliance Te...

Страница 5: ...5 C system design temperature 1 3 Operational Features Modulating 20 100 Integral Dual Limit Connection provided for required field sourced low water cutoff LWCO Outdoor Temperature Reset Integral Mu...

Страница 6: ...d Improper installation could result in death or serious injury Read this manual and understand all requirements before beginning installation 2 3 Installation shall conform to requirements of authori...

Страница 7: ...te as a by product of combustion see page 14 16 Condensate Trap Field Installed Condensate must be piped to appropriate drain See section 6 17 Jacket Panel Latch 18 Supply Water Outlet to Heating Syst...

Страница 8: ...ETY RELIEF VALVE 27 WALL MOUNT SUPPORT BRACKET 3 COMPONENT LISTING 050 075 100 150 200 SIZE SHOWN GAS CONNECTION FIGURE 3 2 Jacket Removal Viewed from Bottom of Boiler Jacket Latch Lift latch to dis e...

Страница 9: ...T 12 LOW VOLTAGE TERMINAL STRIP 22 VENT TEMPERATURE SENSOR 1 GAS CONNECTION SHUT OFF VALVE 23 COMBUSTION ANALYSIS TEST PORT 20 HIGH VOLTAGE JUNCTION BOX 10 HEAT EXCHANGER 9 BOILER CONTROL MODULE Fuse...

Страница 10: ...EM IN 18 SUPPLY WATER TO HEATING SYSTEM OUT 12 LOW VOLTAGE TERMINAL STRIP 1 GAS CONNECTION SHUT OFF VALVE 20 HIGH VOLTAGE JUNCTION BOX 10 HEAT EXCHANGER 9 BOILER CONTROL MODULE Fuse and Holder 5 FLAME...

Страница 11: ...r or water antifreeze solution during boiler service or from safety relief valve discharge See section 5 Access to system water piping gas supply and electrical service See sections 5 7 and 8 Clearanc...

Страница 12: ...16 on center See figure 4 2 Boiler includes 4 3 8 x 3 lag screws and 4 washers for attaching wall mount bracket to wood studs Field source appropriate fasteners for other wall constructions masonry co...

Страница 13: ...uring cooling cycle 5 3 Safety Relief Valve and Air Vent NOTICE Boiler rated at 150 psig 1 03 MPa maximum allowable working pressure Boiler provided with 30 psig 206 kPa safety relief valve Field sour...

Страница 14: ...ingle boiler system See figures 5 4 5 5 5 6 5 7A B for general guidance Additional considerations Boiler control is designed for single central heating pump Installer responsible for integration of mu...

Страница 15: ...ain Table 3 System Piping Configurations Single Boiler Primary Secondary Two Pipe Zoned System With Zone Valves figure 5 5 With Zone Pumps figure 5 6 Primary Secondary Pumping Closed External Primary...

Страница 16: ...Single Boiler Primary Secondary Two Pipe Zoned System With Zone Valves FIGURE 5 6 Single Boiler Primary Secondary Two Pipe Zoned System With Zone Pumps DHW Pump CH System Pump DHW Pump Zone Pump 5 HY...

Страница 17: ...iler Using Primary Secondary Pumping With Closed External Primary Loop FIGURE 5 7B Single Boiler Using Primary Secondary Pumping With Open External Primary Loop CH System Pump 12 305mm Maximum separat...

Страница 18: ...m With Zone Valves See Multiple Boiler Guide 5 HYDRONIC PIPING Up to 16 boilers DHW Pump See Multiple Boiler Guide CH System Pump 12 305mm Maximum Separation System Temperature Sensor Size common pipi...

Страница 19: ...l Primary Loop 5 HYDRONIC PIPING Existing closely spaced tees in primary system loop 12 305mm Maximum Separation Up to 16 boilers CH System Pump 12 305mm Maximum Separation System Temperature Sensor S...

Страница 20: ...mary Loop Existing closely spaced tees in primary system loop 12 305mm Maximum Separation CH System Pump 12 305mm Maximum Separation System Temperature Sensor Size common piping per maximum heat capac...

Страница 21: ...Adjust thermostat so appliances will operate continuously Test for spillage at draft hood relief opening after 5 minutes of main burner operation Use flame of match or candle smoke from cigarette cig...

Страница 22: ...nents must NOT be interchanged with other vent systems or unlisted pipe fittings Minimum Maximum Vent Lengths 2 Pipe 3 Pipe Model 050 075 100 075 100 150 200 Min 6 ft 1 8 m 6 ft 1 8 m 6 ft 1 8 m 6 ft...

Страница 23: ...1 Concentric figure 6 7 Side Wall Single Pipe figure 6 8 Inside Air Single Pipe figure 6 9 Side Wall Roof Single Pipe figure 6 10 Side Wall Two Pipe figures 6 2 6 3 Concentric figures 6 4 6 5 6 6 Ins...

Страница 24: ...ween combustion air intake and vent of different appliances 15 381mm Maximum horizontal length of vent Minimum vent intake between different appliances 12 305mm Maximum allowable total vertical vent l...

Страница 25: ...ote Securing strap must be field installed to prevent movement of termination kit in side wall Vent Combustion Air 1 25 4mm Maximum See Note 2 or 3 51 or 77 mm Diameter PVC intake combustion air Combu...

Страница 26: ...ighest anticipated snow level 24 610mm above roof FIGURE 6 8 Flue on Roof Air Intake on Side Wall FIGURE 6 9 Flue on Roof Combustion Air Grade Snow Ice Terminate vent system bottom minimum 12 305mm ab...

Страница 27: ...w Line 6 COMBUSTION AIR AND VENT PIPING NOTICE Configurations of single pipe vent with flue on the sidewall requires a tee as the vent terminal See figures 6 10 and 6 11 Maintain 12 305mm US 18 457mm...

Страница 28: ...may condense forming moisture may be corrosive Protect building materials at vent from exhaust of vent gas Termination must be 12 305mm from or below doors windows or gravity inlet 12 305mm Minimum Te...

Страница 29: ...rn leaves snow or recirculated vent gases Give consideration to excessive wind and locate away from windward side of building Vapors Position termination where vent vapors are not objectionable Walkwa...

Страница 30: ...provided with boiler and field sourced piping to condensate drain at bottom of boiler See figure 6 17 Slope condensate drain pipe minimum 1 4 per foot 21mm m away from boiler Use field source condensa...

Страница 31: ...See figure 7 1 7 2 Conversion Kit Instructions See Gas Conversion Kit Instructions included with Boiler 7 3 Leak Check Gas Piping CAUTION WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance...

Страница 32: ...as detector 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 so...

Страница 33: ...allowable current draw See Figure 8 3 and Table 9 B Connect pump to line voltage terminal strip DHW PUMP L N G C PUMP L N G Primary Pump A Isolate pump from control module if pump FLA exceeds maximum...

Страница 34: ...e wire C Connect wires interchangeable to DHW T T terminals Wires are interchangeable Central Heating Thermostat A Use thermostat or boiler system control with dry contacts related 0 5 amps 120 VAC Bo...

Страница 35: ...Reset button until boiler resets Do not open gas shutoff valve until all air is purged from system 9 2 Fill Condensate Trap with Water Remove spring tension clip from clear hose attached to barbed fi...

Страница 36: ...104 195 F 40 91 C Temperature Units F F C Installer Menu Boiler Configuration Boiler Address 0 0 15 Low Water Cutoff Required Field Supplied Pump Mode 0 0 4 Service Reminder Status On ON OFF Service R...

Страница 37: ...ws adequately and is disposed properly 8 Check control module operation 9 Check field sourced limits low water cutoffs etc per manufacturer s instructions 9 5 Check Combustion Natural Gas 1 Measure in...

Страница 38: ...opane systems do not have flow meters 1 Check CO2 Propane should be between 10 and 11 0 If CO2 is low increase gas flow following figure 9 3 If CO2 is high decrease gas flow following figure 9 3 FIGUR...

Страница 39: ...boiler will automatically refire then Lockout A 06 requiring manual reset of control module Press Reset button on User Interface OR C Shut off burner E39 Flue Temperature Sensor This is a soft lockou...

Страница 40: ...E page 41 if boiler is not being placed into immediate operation 3 Enter installer information on Warranty Registration Card 4 Gather all instructions manuals wiring diagrams warranty registration car...

Страница 41: ...e upper jacket panel Turn gas shutoff valve to closed position Handle should be perpendicular to gas pipe Wait 5 minutes for any gas to clear Smell for gas including near floor If you smell gas STOP F...

Страница 42: ...r manufacturer s instruction Check following components are operating properly and are free of blockages or obstructions system air vent check venturi air inlet for blockage and clean as required veri...

Страница 43: ...vacuuming Replace burner if it cannot be cleaned or is showing deterioration Clean heat exchanger with low pressure water spray Use flexible handle nylon brush to loosen sediment and oxide on all acce...

Страница 44: ...g jurisdiction for installations above 4500 feet 1350 m above sea level SEA LEVEL RATINGS NATURAL AND PROPANE GASES Size Boiler Input Rate MBH 1 Heating Capacity MBH 1 2 Net AHRI Rating Water MBH 1 3...

Страница 45: ...properly pushed in Release plug lock with finger remove and reconnect all 7 plugs Check wiring from User Interface to Low Voltage Terminal Strip including checking continuity of wires Does User Interf...

Страница 46: ...Control Module High Temperature opens during normal operation Go to Page 52 Control Module detects flame after gas valve is closed more than 10 seconds Replace Gas Valve Flame is detected before gas...

Страница 47: ...61 Hz Go to Page 57 Boiler power supply ground wire is not grounded Go to Page 58 Control board internal error Power down then power up boiler If error repeatedly occurs replace control module Replac...

Страница 48: ...ed to both Gas Valve and J13 connector on Control Module NO YES Disconnect J13 connector on gas valve Measure resistance across top and bottom pins 1 5 Is resistance between 1 0 and 1 2 k NO YES Disco...

Страница 49: ...49 13 TROUBLE SHOOTING...

Страница 50: ...piping Flush system if water is dirty Is boiler supply pipe above heat exchanger hot Wait for boiler to cool down YES NO Replace Broken Switch Unplug molex connector on supply temperature sensor Chec...

Страница 51: ...51 13 TROUBLE SHOOTING...

Страница 52: ...tch 1 Continuity from J13 6 to Switch 3 continuity of the two purple wires Disconnect harness from High Temperature Supply Switch and Control Module J13 Check continuity of both purple wires Continuit...

Страница 53: ...TURN OFF GAS TO APPLIANCE Replace Gas Valve Turn off manual gas shutoff valve Follow instructions TO TURN OFF GAS TO APPLIANCE Replace Gas Valve Follow Operating Instructions to initiate boiler operat...

Страница 54: ...ions Verify J16 connector is connected Verify continuity between low voltage terminal strip LWCO connections and J16 1 and J16 4 Continuity Disconnect LWCO from low voltage terminal strip Check for co...

Страница 55: ...blem if any purging all air out of the system Replace Flue Gas Sensor Replace Control Module Use thermal couple to measure flue gas temperature through sampling port Is the measured temperature and fl...

Страница 56: ...Liquid might be water or antifreeze solution NO Is Primary Pump properly oriented YES NO Disconnect harness from Return Water Sensor Measure resistance using digital ohm meter Is resistance between 95...

Страница 57: ...supply rated at 60 Hz 2 Replace Control Module YES YES NO NO Replace circuit breaker 13 TROUBLE SHOOTING Fix the connection These error messages are displayed when the control board detects fault in...

Страница 58: ...2K to 1K ohms 2K to 3K ohms 3K to 9K ohms 54 to 66 32 to 54 66 to 94 Supply Water Sensor Resistance Chart Disconnect field wiring Is continuity between field wiring neutral and ground less than 10 ohm...

Страница 59: ...r resistance with digital meter Estimate Sensor temperature Do temperature and resistance fall within ranges shown in chart Replace Wires 50 to 90 10 to 32 9K to 24K ohms 150 to 200 90 to 130 F C Resi...

Страница 60: ...rature Sensor Resistance Chart Disconnect wire harness from High Temperature Supply Switch Measure resistance across terminals 2 and 4 Does temperature fall within ranges shown in chart See Thermistor...

Страница 61: ...Replace Control Module Disconnect wire harness from Vent Temperature Sensor Measure Sensor resistance Does resistance match estimated flue temperature NO YES _ P _ _ _ Blocking Error E 6 5 Flue Sens...

Страница 62: ...100 5 41 28590 10 50 22790 15 59 18290 20 68 14770 25 77 12000 30 86 9805 35 95 8055 40 104 6653 45 113 5524 50 122 4809 55 131 3863 60 140 3253 65 149 2752 70 158 2337 75 167 1994 80 176 1707 85 185...

Страница 63: ...63 14 1 Connection Diagram 050 075 100 MBH 14 WIRING DIAGRAM...

Страница 64: ...64 14 2 Schematic Diagram of Ladder Form 050 075 100 MBH 14 WIRING DIAGRAM...

Страница 65: ...65 14 3 Connection Diagram 150 200 MBH 14 WIRING DIAGRAM...

Страница 66: ...66 14 4 Schematic Diagram of Ladder Form 150 200 MBH 14 WIRING DIAGRAM...

Страница 67: ...production of heat or heat and light Complete combustion of fuel is possible only in presence of adequate supply of oxygen COMBUSTIBLE MATERIAL Materials made of or surfaced with wood compressed paper...

Страница 68: ...E Valve designed to relieve pressure in hot water supply system when pressure exceeds pressure capability of equipment SAFETY SHUTOFF DEVICE Device that will shut off gas supply to controlled burner i...

Страница 69: ...em Increase value Scroll down to next menu item Decrease value Boiler Status Indicator F Flame Detected P Central Heating System pump On B Combustion Air Blower On S Safety Relay Check G Gas Valve Ope...

Страница 70: ...ype of heating demand CH call is illustrated Control Module compares supply Temperature to set point Boiler proceeds to ignition if supply temperature is less than set point Combustion Air Blower spee...

Страница 71: ...g rate according to heating demand When Boiler detects demand met will enter post purge mode then standby mode If simultaneous demand for Central Heat and DHW boiler will enter DHW Priority Mode Prior...

Страница 72: ...as part of multiple boiler installation submenu used to view runtime parameters See Multiple Boiler Manual This line is not shown if boiler is not in cascade system Boiler Status Supply Temperature se...

Страница 73: ...to OD Reset Setpoint and cannot be changed Controller calculates set point based on outdoor temperature Note For explanation of available CH heating modes refer to CH Mode section located in CH Settin...

Страница 74: ...ings Modifies Domestic hot Water control settings such as DHW priority time Cascade Settings Refer to Multiple Boiler Manual System Test Tool aids setup of boiler installation or diagnosis of common p...

Страница 75: ...ition If at end of safety period no flame detected control will go to post purge removing unburned gas Re ignition attempt started following same cycle Number of re ignition attempts limited to 3 afte...

Страница 76: ...ler Configuration Address Selection screen used to set boiler position in multiple boiler cascade installation Refer to Multiple Boiler Installation Manual Default setting of 0 indicates boiler is ope...

Страница 77: ...s pump to CH System Pump electrical terminal block See page 35 for diagram DHW pump terminal does not function This is typical of hydronic system design which utilizes zone valves for all CH zones and...

Страница 78: ...and Warm Weather Shutdown temperature Boiler will permanently attempt to satisfy CH demand when CH demand is available CH thermostat input is ignored CH set point calculated as function of outdoor tem...

Страница 79: ...ts A B of Reset Curve below Calculated CH set point always limited between Reset Curve Boiler Minimum Maximum temperatures See points C D of Reset Curve below Figure A 2 Outdoor Reset Curve Calculated...

Страница 80: ...100 Default Setting 100 DHW Settings Two DHW modes are available DHW Mode 0 No DHW DHW Mode is disabled The DHW thermostat input is ignored and the DHW pump is not used DHW Mode 2 DHW Store with Ther...

Страница 81: ...demand being present System Test has priority over any system demand while test mode activated System test mode automatically ends after 30 minutes boiler resumes normal operation The following modes...

Страница 82: ...dle with wire tie This harness will not be required when mounting user interface outside of boiler 7 Before installing user interface in new location route new two conductor wire through hole in back...

Страница 83: ...83 PRIMARY LOOP EQUIVALENT LENGTH CALCULATION PUMP SELECTION 50 75 100 MBH...

Страница 84: ...84 PRIMARY LOOP EQUIVALENT LENGTH CALCULATION PUMP SELECTION 50 75 100 MBH...

Страница 85: ...85 PRIMARY LOOP EQUIVALENT LENGTH CALCULATION PUMP SELECTION 150 200 MBH...

Страница 86: ...86 PRIMARY LOOP EQUIVALENT LENGTH CALCULATION PUMP SELECTION 150 200 MBH...

Страница 87: ...87 NOTES...

Страница 88: ...DUNKIRK BOILERS 2201 Dwyer Avenue Utica NY 13501 web site www ecrinternational com...

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