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Part 1 - General Safety Information

Table 19 - Boiler Wiring - 1

Connector

Description

HT Selv

No. of Location

Pin

CN1

POWER SUPPLY

120 VAC LIVE INPUT

HT (120V~) AC

120 VAC NEUTRAL INPUT

PROTECTIVE EARTH

CN2

EXTERNAL PUMP 2 /

Hi-V DIVERTER VALVE (DHW)

120 VAC EXT. PUMP2 INPUT / 120VAC LINE DIV1

HT (120V~) AC

120 VAC NEUTRAL

120 VAC EXT. PUMP2 (NO) / 120VAC LINE DIV2

BOILER PUMP

120 VAC LIVE (NO)

120 VAC NEUTRAL

EXTERNAL PUMP 1 (CH)

120 VAC EXT. PUMP1 INPUT

120 VAC EXT. PUMP1 (NO)

CN3

FAN ON/OFF

120 VAC LIVE

HT (120~) AC

120 VAC NEUTRAL

IGNITER

120 VAC LIVE (NO)

120 VAC NEUTRAL

GAS VALVE

120 VRAC + (NO)

120 VRAC - (NO)

CN8

POWER SUPPLY OUT

120 VAC LINE

HT (120V~) AC

120 VAC NEUTRAL

CN4

PROTECTIVE EARTH

CN7

PROTECTIVE EARTH

CN9

PROTECTIVE EARTH

CN26

NTC HEAT RETURN

+5V

SELV (5V)

CH RETURN NTC SENSOR SIGNAL

NTC HEAT FLOW 1

+5V

CH FLOW 1 NTC SENSOR SIGNAL

NOT USED

NTC FLUE

+5V

FLUE NTC SENSOR SIGNAL

AIR PRESSURE SWITCH

+24V

SELV (24V)

APS DETECTION SIGNAL

Bridged

NOT USED

CN20

DHW FLOW SENSOR

+5V

SELV (5V)

GROUND

DHW FLOW DETECTION SIGNAL

WATER PRESSURE SWITCH

+5V

GROUND

CH WATER PRESSURE SWITCH SIGNAL

NTC HEAT DHW

+5V

DHW OUTLET NTC SENSOR SIGNAL

DIVERTER VALVE

STEPPER DIVERTER VALVE COIL 1 START

STEPPER DIVERTER VALVE COIL 1 END

STEPPER DIVERTER VALVE COIL 2 START

STEPPER DIVERTER VALVE COIL 2 END

Part 7 - Connecting Electrical Service

Содержание FTVN

Страница 1: ...vere personal injury or death California Proposition 65 Warning This product contains chemicals known to the State of California to cause cancer birth defects or other reproductive harm The manufactur...

Страница 2: ...trical switch do not use any phone in your building Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions If you cannot reach your gas supplier call the fir...

Страница 3: ...ng and other performance criteria when undergoing tests specified in ANSI Z21 13 latest edition Installation should be made in accordance with the regulations of the Authority Having Jurisdiction loca...

Страница 4: ...e IMPORTANT In accordance with Section 325 f 3 of the Energy Policy and Conservation Act this boiler is equipped with a feature that saves energy by reducing the boiler water temperature as the heatin...

Страница 5: ...and CH Circulators 49 2 Low Voltage Wiring Connections 49 3 Room Thermostat Wiring Connections 50 4 Outdoor Sensor Connections 50 5 Aquastat Default and Tank Sensor Optional Connections non Combi Mod...

Страница 6: ...a fully functional and calibrated combustion analyzer Failure to follow these instructions will result in property damage severe personal injury or death WARNING WARNING DANGER NOTE If the boiler is e...

Страница 7: ...rors can cause improper or dangerous operation Failure to do so could result in electrical shock improper boiler or system operation property damage serious personal injury or death Due to the low wat...

Страница 8: ...gaskets and seals in water systems are poisonous if consumed and can cause personal injury or death Consider piping and installation when determining boiler location Damages resulting from incorrect...

Страница 9: ...econd Table 3 Time and Temperature Relationship in Scalds An ASSE 1017 or ASSE 1070 temperature limiting or mixing valve is required in all combi boiler installations Failure to install a temperature...

Страница 10: ...Guide 11 1 LP Gas Conversion Kit 12 1 Outdoor sensor Kit 13 1 3 4 Cap Not Included with Combis and not shown TRX085 All models TEMPLATE QSG THIS CONTROL WAS CONVERTED FOR USE WITH PROPANE GAS This app...

Страница 11: ...k pump operation Internal By Pass Valve Protects the boiler from damage in low flow conditions Internal ECM Pump The internal ECM Pump uses less electricity than standard pumps providing high performa...

Страница 12: ...nings Ensure a minimum 1 clearance around hot water and exhaust vent pipes NOTE To prevent condensing in the fan it is recommended to avoid prolonged exposure to temperatures below 45oF This boiler ha...

Страница 13: ...leveling Figure 4 Minimum Clearances The space must be provided with correctly sized combustion ventilation air openings for all other appliances located in the space with the boiler For power venting...

Страница 14: ...Fischer S 10x50 screws and field provided washers for wood mounting 3 Install the lower mounting bracket on the boiler Then hang the boiler on the upper mounting bracket Ensure the boiler is level The...

Страница 15: ...mbustion air based on the boiler input Never obstruct the supply of combustion air to the boiler If the boiler is installed in areas where indoor air is contaminated see Table 6 it is imperative that...

Страница 16: ...d to fasten building products Table 6 Products and Areas Likely to Have Contaminants J Removing a Boiler from a Common Vent System When removing an existing boiler follow the steps below 1 Seal any un...

Страница 17: ...t 2 0 100 feet 3 0 150 feet 3 0 150 feet Approved Exhaust Vent Materials3 PVC CPVC PP Stainless Steel Shipping Weight lbs 110 110 120 131 110 121 132 Gas Supply Pressure NG 3 5 to 10 5 WC LP 8 to 13 W...

Страница 18: ...tral Heating Supply 1 1 4 NPT A Central Heating Supply 1 1 4 NPT B Supply to Indirect Water Heater 3 4 NPT B Domestic Hot Water Outlet 3 4 NPT C Gas Inlet 3 4 NPT C Gas Inlet 3 4 NPT D N A D Domestic...

Страница 19: ...r 7 Flame detection electrode 8 Silencer 9 Junction box 10 DHW Heat Exchanger Combi Models Only 11 Condensate trap 12 Gas valve 13 Control panel FTVN Components 15 Circulation Pump 16 DHW Flow Sensor...

Страница 20: ...11 Condensate trap 12 Gas valve 15 Circulation Pump 16 DHW Flow Sensor Combi Models Only 17 Water pressure switch 18 Modulating Fan 19 Boiler inlet temperature sensor 21 Ignition electrode 24 Air int...

Страница 21: ...or death Expansion tanks must be sized according to total system volume This includes all length of pipe all fixtures boilers etc Failure to properly size for system expansion could result in wasted...

Страница 22: ...3 4 C Gas Inlet 3 4 D DHW Inlet 3 4 E CH Return 1 1 4 F Condensate discharge A CH Supply 1 1 4 B Supply to Indirect Water Heater 3 4 Cap if not in use C Gas Inlet 3 4 D N A E CH Return 1 1 4 F Condens...

Страница 23: ...irculation Pump To calculate the size of the heating installation refer to the graph below Table 10 Internal Circulation Head Curve 0 5 10 15 20 25 0 2 4 6 8 10 12 Head Flow Rate US GPM Available Head...

Страница 24: ...line in a manner that will prevent possibility of severe burns or property damage should the relief valve discharge Discharge line must be as short as possible and the same size as the valve discharg...

Страница 25: ...afactoryinstalledWaterPressureSwitch Inthe event water pressure drops below 7 PSI the control will go to a blocking error FILL 108 inhibiting burner operation However a low water cut off may be requir...

Страница 26: ...ach zone thermostat is wired to its corresponding zone valve Contacts in the zone valves provide a signal to the boiler to operate when there is a call for heat 10 Unit is equipped with built in prima...

Страница 27: ...essel on the return side of the boiler as illustrated Figure 16 Boiler without Central Heating Circulator Part 4 Water Piping The piping will not support the weight of the circulators Refer to the cir...

Страница 28: ...Each zone thermostat is wired to its corresponding zone valve Contacts in the zone valves provide a signal to the boiler to operate when there is a call for heat 10 Unit is equipped with built in prim...

Страница 29: ...mum flow rates outlined in this manual 2 gpm must be maintained through the heat exchanger to minimize short cycling 8 In a valve based system each heating zone has a zone valve which opens when that...

Страница 30: ...heating loop This pump is sized to ensure proper flow rate through the boiler heat exchanger and related piping 8 For direct not primary secondary piping applications it is required to install the exp...

Страница 31: ...tall a minimum of 12 diameters of straight pipe upstream of all circulators 7 VERY IMPORTANT Minimum flow rates outlined in this manual 2 gpm must be maintained through the heat exchanger to minimize...

Страница 32: ...at 0 5 GPM 5 Turn Comfort Function ON Set Parameter 2 5 0 to 1 or 2 6 For efficient operation it is recommended to use a recirculation pump with a pulse function such as TACO 006E with Smart Plug 7 D...

Страница 33: ...7 5 131 F increasing phase from 77 F to 131 F 6 days stays at 131 F for 6 days decreasing phase from 131 F to 77 F 6 days Example 2 Parameter 2 7 5 140 F increasing phase from 77 F to 140 F 7 days sta...

Страница 34: ...understand the hazards associated with explosive solvents and take the necessary precautions to avoid these risks Improper seating of vent pipe gaskets can cause eventual gasket failure and exhaust ga...

Страница 35: ...bility of the proposed venting material Failure to follow these directions will result in substantial property damage severe personal injury or death DANGER DANGER B Approved Materials for Exhaust Ven...

Страница 36: ...et 91 cm Power Vent 4 ft below or to side of opening 1 ft above opening K Clearance to mechanical air supply inlet 3 feet above if within 10 feet horizontally 6 feet 1 83 m L Clearance above paved sid...

Страница 37: ...is no minimum length for the intake air pipe run 3 The total length of the exhaust vent pipe run must not be less than six 6 feet 4 The total length of the exhaust vent pipe run must not exceed one hu...

Страница 38: ...t can be avoided do not locate vent directly over public walkways driveways or parking lots in climates where freezing conditions are possible Condensate could drip and freeze resulting in a slip haza...

Страница 39: ...centric Roof 2 3 2ZDVK2 DZDVK3 Not Shown Yes No NOTES 1 Instructions included with termination kits contain detailed assembly and installation instructions 2 Clearance requirements in this manual supe...

Страница 40: ...thods must all comply with the methods and limits given in the Venting section of this manual When installing a combustion air intake from outdoors care must be taken to utilize uncontaminated combust...

Страница 41: ...sible for all equipment and detailing required by local codes Sidewall Venting Options Direct Vent Installation Two Pipe Termination Low Profile Termination Concentric Termination Intake Exhaust Exhau...

Страница 42: ...Vent Directly Below Keep Free of Obstructions 4 in min Refer to documentation included with termination kit for complete installation instructions Refer to documentation included with termination kit...

Страница 43: ...w Grade For installations that exit the wall below grade 1 Excavate the site to a point where the pipes are to exit as shown in Figure 34 2 Ensure the wall is fully sealed where the pipes penetrate 3...

Страница 44: ...f 18 above the air intake termination See Figure 40 for more details 3 Polypro Innoflue Concentric Termination illustrated See Figure 43 for more details Exhaust must terminate a minimum of 12 above s...

Страница 45: ...rmination only Neither vent pipe illustrated is intended for combustion air intake Refer to documentation included with termination kit for complete installation instructions Refer to documentation in...

Страница 46: ...ted in this Venting section apply See Figures 44 1 and 44 2 for venting demonstrations Chase Venting Through an Existing System When venting as a chase follow all instructions included in this Venting...

Страница 47: ...the boiler intake connection Unconfined space is space with volume greater than 50 cubic feet per 1 000 Btu hour 4 8 cubic meters per kW of the total input rating of all fuel burning appliances instal...

Страница 48: ...ratures or any type of blockage In installations that may encounter sustained freezing conditions the use of heat tape is recommended to avoid freezing of the condensate line Longer condensate runs ar...

Страница 49: ...ectrical power must only be turned on when the boiler is completely filled with cold water Failure to follow these instructions could result in component or product failure serious injury or death Lab...

Страница 50: ...e Wiring Connections NOTE WHEN CONNECTING THE BOILER TO EXTERNAL CONTROLS DO NOT RUN 120V CABLES AND CABLES FOR CONTROL CIRCUITS WHICH ARE LOWVOLTAGE TOGETHER USE SEPARATE CABLESTO PREVENT INDUCED VOL...

Страница 51: ...I Bk Bl Bl Rd Wh Bl Bl Rd Rd Br Br Gry Gry Bl Gry Bl Bk Bk Bk Rd Rd Wh Br Br Br Bk Bk Br Wh Br Bl Br Detection electrode EBUS 2 TT2 TT1 System sensor Tank sensor Outdoor sensor Boiler Pump Igniter Gas...

Страница 52: ...A NEUTRAL filtered FAN CIRCUIT SMPS Nf HOT filterd Hf Safety Ground NEUTRAL FLAME CIRCUIT Hf Hf 3 WAY VALVE RELAYS CIRCUIT SENSORS CIRCUIT HMI B Nf Nf C D Nf A G G OUT1 TANK Hf DHW SYSTEM Hf OUT2 OUT...

Страница 53: ...AC NO 6 120 VRAC NO CN8 POWER SUPPLY OUT 1 120 VAC LINE HT 120V AC 2 120 VAC NEUTRAL CN4 PROTECTIVE EARTH 1 CN7 PROTECTIVE EARTH 1 CN9 PROTECTIVE EARTH 1 CN26 NTC HEAT RETURN 1 5V SELV 5V 2 CH RETURN...

Страница 54: ...SIGNAL EBUS2 11 EBUS2 SIGNAL SELV 24V 12 GROUND CN16 FAN MANAGEMENT 1 GROUND SELV 24V 2 PWM FAN DRIVER 3 HALL_EFFECT SENSOR 4 24V CN19 EXTERNAL CLIP IN 1 24V SELV 24V 5V 2 GROUND 3 CLIP IN SERIAL TX...

Страница 55: ...NED total maximum BTUH draw for the appliances as if they were operating at the same time 3 Measure the length of the gas supply line from the gas meter to the boiler The boiler must be installed down...

Страница 56: ...xcess Flow Valve EFV Figure 58 Remove Yellow Cap When performing a pressure test on the gas line pipng be sure the boiler is disconnected or isolated if the test pressure is expected to exceed 1 2 PSI...

Страница 57: ...or After pressing the Reset button to clear an error condition the button will flash for five 5 seconds Display Icon Description Digits Indicating Boiler Status Temperature oF with bar level Error Cod...

Страница 58: ...e setpoint fromthehomescreenbypressingtheCH buttons SeeFigure62 The allowable operating range is limited by the Max and Min Temperature Settings e g Parameters 4 2 5 and 4 2 6 which are adjustable via...

Страница 59: ...eter the number 1 or 2 of the selected zone appears next to the heating symbol Continue to change the setting as described above E User Menu Figure 64 Access user menu Table 26 User Menu Activate chan...

Страница 60: ...ation the Internet time is automatically taken into account Manual entry Day 1 31 Months 1 12 Year 2019 Time 00 00 item 2 Figure 60 for the hour setting item 8 Figure 60 for setting minutes Buttons Bu...

Страница 61: ...Type of Temperature Control 0 Fixed Outlet Temperature Automatic Temperature Control AUTO OFF 1 Basic Temp Control without Optional Room Sensor or Outdoor Sensor 2 Indoor Temp Reset With Optional Room...

Страница 62: ...t The boiler target temperature automatically adjusts between the Min and Max Temperature Settings 4 2 6 and 4 2 5 based on the input temperature provided by the included Outdoor Sensor or Internet We...

Страница 63: ...ting system The function boosts the boiler target temperature by increasing the Slope 10 every 10 minutes a call for heat is continuously active to a maximum of 2X the nominal Slope setting 4 2 2 Whil...

Страница 64: ...r When this function is activated the boiler automatically switches from winter mode to summer mode based on outdoor temperature conditions This means that the appliance can independently activate or...

Страница 65: ...TECHNICIANS MAY ONLY BE ACCESSED AFTER ENTERING THE ACCESS CODE To access the Menus open the cover and proceed as follows in this example Parameter 2 3 1 1 Simultaneously press the OK and ESC buttons...

Страница 66: ...parameters 8 Service Parameters 0 Boiler Statistics 1 1 Boiler Statistics 2 2 Boiler 3 Boiler Temperature 4 Storage 5 Service 6 Error History 7 Free parameters 8 Reset Factory Settings 9 Other 1 10 Ot...

Страница 67: ...0 GENERAL 2 0 0 DHW Setpoint Temperature FTVN COMBI 97 140 F 125 Also settable via the home screen see item 2 Figure 60 not applicable when 2 2 8 2 DHW Setpoint Temperature FTVN non COMBI 104 149 F 1...

Страница 68: ...s set to 0 Deactivated COMFORT function is not active FTVN Combi models set to 1 or 2 On activates conditionally once per Comfort Anti cycling Time Activating the COMFORT function keeps the DHW heat e...

Страница 69: ...on a replacement controller Replacement controllers have generic settings that may not be specific to the boiler model Reset OK yes ESC no To Reset all parameter settings press the OK button 2 10 0 CH...

Страница 70: ...W temperature threshold 50 86 F 68 4 1 2 S W delay time 0 300 minutes 60 4 2 ZONE 1 SETTINGS 4 2 0 Temperature Range 0 1 1 This parameter determines the starting boiler target temperature when using...

Страница 71: ...below room setpoint Only applicable when using an optional NTI Room Sensor and when 4 2 1 2 or 4 4 2 5 MAXIMUM Temperature Setting 68 179 F 179 4 2 5 sets the allowable boiler operating temperature r...

Страница 72: ...ge for Zone 2 heating limiting Automatic Temperature Control and manual adjustments from the User Menu 5 3 ZONE 2 DIAGNOSTICS 5 3 0 Room Temperature Read only Only applicable when using an NTI room se...

Страница 73: ...d 50 86 F 68 6 3 4 S W delay time 0 300 minutes 60 6 7 ZONE 3 REGULATION PARAMETERS 6 7 5 Auto Boost 0 OFF 1 ON 0 See description of Parameter 475 8 SERVICE PARAMETERS 8 0 BOILER STATISTICS 1 Read Onl...

Страница 74: ...ntenance Warning Reset Reset OK Yes Esc No Resets Maintenance Advice and clears the Warning 8 5 4 SW Version Display Interface 8 5 5 SW Version Main Controller 8 6 ERROR HISTORY 8 6 0 10 last errors E...

Страница 75: ...ll install a water meter to monitor water makeup Freeze protection fluid may leak before the water begins to leak causing concentration to drop reducing the freeze protection level 4 Glycol in hydroni...

Страница 76: ...t and close them only when clear water free of air is visible 4 Close the air purge valve when clear water free of air is visible 5 Continue filling the system until at least 12 psi registers on the p...

Страница 77: ...t can be connected to an alarm or another type of warning device to alert the user of a condensate overflow which if not corrected could cause property damage 3 If a long horizontal run is used it may...

Страница 78: ...mplete proceed with Combustion Checking Procedure FOR YOUR OWN SAFETY READ BEFORE OPERATING 1 This boiler does not have a pilot It is equipped with an ignition device which automatically lights the bu...

Страница 79: ...ually looking at the burner does not determine combustion quality Failure to measure combustion with a calibrated combustion analyzer and set the throttle within the recommended CO measurements could...

Страница 80: ...pplicablecodesandrequirements of the authority having jurisdiction If the information in these instructions is not followed exactly a fire an explosion or production of carbon monoxide may result caus...

Страница 81: ...supported Has vent piping been checked for leaks Has the exhaust vent line been pitched back to the boiler at a rate of 1 4 per foot Have the exhaust vent and intake pipes been properly installed to...

Страница 82: ...Has the boiler been started If necessary has the boiler gas valve been adjusted Has the installation been customized per installation location requirements Have all customized system parameters been t...

Страница 83: ...rror condition goes away The button must be pressed on the control panel to restore boiler operation Iftheerrorconditionoccursoftencontactaqualifiedservicetechnician 3 Malfunction Warning This warning...

Страница 84: ...ror Code will go away when the condition is remedied If Error happens again 1 Ensure the system is filled with water Ensure all valves are open to the appliance and there are no leaks 2 Check wiring c...

Страница 85: ...supply Blocking Auto Reset 1 1 Turn Off the Power to the Boiler 3 05 PCB internal error Switch the boiler OFF and ON at the main electrical power supply If the problem happens again replace the main...

Страница 86: ...d 10 5 WC Natural Gas or between 8 and 13 WC for boilers converted to Propane LP operation 2 Check gas valve wire Ensure connection is secure 3 Check flame detection sensor Ensure connections are secu...

Страница 87: ...the condition is remedied 1 Check exhaust temperature sensor Ensure connections are dry and secure 2 If flue is very cold 14 F 10 C remove sensor and warm it then reinstall 3 If flue is very hot see...

Страница 88: ...oiding any possibility of scalding from hot water 2 Shut power off to the boiler To avoid scalding wait for boiler to cool before operating the relief valve 3 Lift the relief valve lever If water flow...

Страница 89: ...y inspect for leaks around the boiler water connections and around the heat exchanger Visually inspect the external system piping circulators and system components and fittings Immediately call a qual...

Страница 90: ...under warranty The combustion chamber insulation in this product contains ceramic fiber material Ceramic fibers can be converted to cristobalite in very high temperature applications The International...

Страница 91: ...amaged resulting in unreliable or unsafe boiler operation substantial property damage severe personal injury or death Figure 88 Remove the Top Plate and Burner Figure 89 Disassembled Burner Assembly F...

Страница 92: ...tched per foot to allow for proper drainage The condensate line must remain unobstructed allowing free flow of condensate If condensate freezes in the line or if line is obstructed in any other manner...

Страница 93: ...n the model loosen the three 3 or four 4 screws to release the fan from the heat exchanger Figure 92 Removed Fan Mixer and Components 4 Reassemble the mixer and fan assembly in the reverse order Ensur...

Страница 94: ...emove it 5 Proceed in reverse order to install the new PCB 6 Follow the instructions provided with the replacement PCB kit for setting all necessary parameters Figure 99 Disconnect the Main PCB 6 Disc...

Страница 95: ...d heating contractor for periodic maintenance of the boiler Installer must also inform the owner that the lack of proper care and maintenance of the boiler may result in a hazardous condition CAUTION...

Страница 96: ...de Clean Set gap at 1 8 CONDENSATE Condensate Trap Clean debris from the condensate trap Fill with clean water Neutralizer Check condensate neutralizer Replace if necessary Condensate hose Disconnect...

Страница 97: ...ely After a failed ignition trial the blower must run for approximately 5 seconds to purge the system If the burner lights during any one of these five ignition trails normal operation will resume If...

Страница 98: ...98 Maintenance Notes...

Страница 99: ...ion Address Product Name Serial Number s Comments Installer s Code Name Installers Phone Number Signed by Installer Signed by Customer Installation Notes IMPORTANT Customer Please only sign after the...

Страница 100: ...NTI Boilers Inc 30 Stonegate Drive Saint John NB E2H 0A4 Canada Technical Assistance 1 800 688 2575 Website www ntiboilers com Fax 1 506 432 1135 Visit us online 87030 Revision Date 5 14 21...

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