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NTI Trinity TX101, Installation And Operation Instructions Manual

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NTI Trinity TX101 Installation And Operation Instructions Manual Download Page 51

 

Tx I&O Manual 

│

DHW Piping (Combi)

 

 

 

51 

Tx-Combi w/ DHW Storage Tank 

To completely avoid the DHW limitations inherent with on demand hot water heating, install a DHW storage tank 
as per Figure 11-2.  When the tank temperature is insufficient, a Thermostat located within the storage tank 
completes a 120VAC circuit to operate a Potable (bronze or Stainless Steel) Circulator pump.  The pump 
circulates water from the bottom of the storage tank (typical location of a drain fitting) to the DHW inlet fitting of 
the Tx-Combi.  The internal DHW flow sensor senses the water flow and triggers a DHW demand; heated water 
flows from the Tx-Combi and enters the Recirculation Inlet fitting of the storage tank.  
 

 
 
 
 
 

 
 

Figure 11-2  DHW Piping with Optional Storage Tank (Tx151C & Tx200C) 

 

 

 

 

When using a Storage Tank, set Preheat Mode (Installer Menu setting 2-10) to OFF to 
prevent the boiler from redundantly maintaining DHW temperature. 
 

Y-Strainer (factory 
supplied) 

Drain Valve 

Outlet 

Inlet 

Isolation Valve 

Potable Circulator 

(w/ check valve) 

Cold Inlet / Drain 

Recirculation Inlet 

Thermostatic 

Mixing Valve 

Hot Outlet 

Cold Water Supply 

DHW to Fixtures 

Summary of Contents for Trinity TX101

Page 1: ...PARTS LIST 77 HAZARD SYMBOLS AND DEFINITIONS Danger Sign Indicates a hazardous situation which if not avoided will result in serious injury or death Warning Sign Indicates a hazardous situation which if not avoided could result in serious injury or death Caution Sign plus Safety Alert Symbol Indicates a hazardous situation which if not avoided could result in minor or moderate injury Caution Sign ...

Page 2: ...he burner by hand 4 Turn the manual gas valve to the OFF position Remove front access panel 5 Wait five 5 minutes to clear out any gas Then smell for gas including near the floor If you smell gas STOP Follow B in the safety information above If you do not smell gas go to the next step 6 Turn the manual gas valve ON Wait an additional five 5 minutes smelling for gas 7 Replace the front access panel...

Page 3: ...E USED UNLESS AT LEAST ONE OF THE FOLLOWING CONDITIONS IS TRUE An external energy management system is installed that reduces the boiler water temperature as the heating load decreases This boiler is not used for any space heating This boiler is part of a modular or multiple boiler system having a total input of 300 000 BTU hr or greater This boiler is equipped with a tankless coil User Responsibi...

Page 4: ...tructions Liquefied Petroleum LP propane gas is heavier than air therefore it is imperative that your Trinity Tx boiler is not installed in a pit or similar location that will permit heavier than air gas to collect Local Codes may require boilers fueled with LP gas be provided with an approved means of removing unburned gases from the room Check your local codes for this requirement Natural to LP ...

Page 5: ... print size no less than one half 1 2 inch in size GAS VENT DIRECTLY BELOW KEEP CLEAR OF ALL OBSTRUCTIONS plate included with boiler 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 inspector observes carbon monoxide detectors and signage installed in accordance with the provisions ...

Page 6: ...ift the boiler into place Failure to follow these instructions may result in property damage or personal injury High Altitude Operation The Trinity is designed to operate at its maximum listed capacity in installations located at 0 2000ft above Sea Level Since the density of air decreases as elevation increases maximum specified capacity should be de rated for elevations above 2000 ft 610 m in acc...

Page 7: ...vided Closet Installations For closet installations it is necessary to provide two ventilation air openings as shown in Figure 3 1 each providing a minimum area equal to 1 in2 per 1000 Btu hr but not less than 100 in2 and within 6 of the top and bottom of the closet door See Table 3 1 for minimum clearances Alcove Installations Alcove installations have the same minimum clearances as closet instal...

Page 8: ...ecommended Clearances listed in Table 3 1 Bottom ventilation opening Max 6 above floor bottom Top ventilation opening Max 6 below ceiling top Sides 4 Front 6 if removable Removable surface closet door Ventilation air opening 1in 2 per 1000 Btu hr min 100in 2 Ventilation air opening 1in 2 per 1000 Btu hr min 100in 2 Min 1 clearance for hot water and vent pipes Bottom 9 Top 12 ...

Page 9: ...inted upward and angled away from the wall Mount the appliance to the wall by aligning the two wall mount brackets Top Bracket A with the Bottom bracket B Slide the top bracket fastened to the boiler down over the wall mounted bracket until it hooks Once the appliance is resting securely on the wall attach the L shaped Bracket C to the underside of the appliance using the mounting hardware removed...

Page 10: ...g Size and Location for accessing indoor combustion air shall be used when the air infiltration rate is adequate i e greater than 0 4 ACH air changes per hour and when the boiler area and communicating spaces have a minimum volume of 50 cubic ft per 1000 Btu hr If the air infiltration rate is known to be less that 0 4 ACH refer to the National Fuel Gas Code for further guidance 1 Combined spaces o...

Page 11: ...tion Air Opening Size and Location described above c Outdoor Opening s Size The outdoor opening s size shall be calculated in accordance with the following i The ratio of interior spaces shall be the available volume of all communicating spaces divided by the required volume i e 50 cubic ft per 1000 Btu hr if 0 4 ACH or greater ii The outdoor size reduction factor shall be 1 minus the ratio of int...

Page 12: ...mmable Solvents and Plastic Piping Due to the extremely flammable characteristics of most glues cements solvents and primers used in the process of joining plastic vent and air inlet pipe explosive solvent vapors must be evacuated from the vent and air inlet prior to start up Avoid using excess cement or primer that may lead to pooling inside the pipe assembly Freshly assembled piping assembly sho...

Page 13: ...ce potential strain on vent piping and cemented joints See Figure 4 2 b Stainless Steel Piping The Trinity Tx has been tested and approved for use with DuraVent FasNSeal AL29 4C Stainless Steel Special Gas Vent Venting with FasNSeal will require DuraVent adapter part number 300715 contact DuraVent at 1 800 835 4429 or www duravent com Remove the lower gasket and toothed ring from the appliance exh...

Page 14: ...ceptable pipe material Flue Outlet Adapter factory supplied PVC CPVC Exhaust Vent Swing Joint to attain slope in horizontal runs Air inlet Pipe Air Inlet Adapter factory supplied PVC CPVC w 1 8 bevel PPs Gasket Ring remove lower gasket ring not used w PVC PVC Gasket Ring retain upper gasket ring PPs Pipe w 1 8 bevel PPs Gasket Ring retain lower gasket ring Air inlet Adapter factory supplied PPs El...

Page 15: ...S Near Boiler Venting SS Flue Outlet Adapter factory supplied SS Exhaust Vent Pipe Swing Joint to attain slope in horizontal runs SS Air inlet Pipe SS Adapter Table 4 3 Air inlet Adapter factory supplied SS Adapter Table 4 3 PPs Gasket Ring remove lower gasket ring not used w PVC PVC Gasket Ring retain upper gasket ring ...

Page 16: ...gh temperature applications requiring boiler supply water temperatures greater than 140o F 60o C must use ULC S636 CPVC PP or SS The use of cellular core PVC ASTM F891 cellular core CPVC or Radel polyphenolsulfone in the exhaust venting system is prohibited Failure to follow these instructions may result in property damage personal injury or death Covering non metallic vent pipe and fittings with ...

Page 17: ... CPVC7 3 196985 NTI P N 84357 IPEX Concentric Wall Roof 5 6 7 2 196005 4 3 c 4 4 c 4 5 b 4 6 b 3 196116 NTI P N 82666 197009 DuraVent PolyPro Concentric Wall 2 2PPS HK 4 3 c 4 5 d PVC CPVC PPs 3 3PPS HK DuraVent PolyPro Concentric Roof 2 2PPS VK 4 4 c 4 6 c 3 3PPS VK Centrotherm InnoFlue Flush Mount 2 ISLPT0202 4 3 b 4 5 c 3 ISLPT0303 Centrotherm InnoFlue Concentric Wall 8 2 ICWS2413 ICTC0224 4 3 ...

Page 18: ...ation Sidewall Exhaust must terminate a minimum of 18 above Air inlet termination see Figure 4 5 a for more details Exhaust Inlet 3 IPEX Low Profile Termination illustrated see Figure 4 5 c for more details Exhaust Inlet 3 DuraVent Concentric Termination illustrated see Figure 4 5 d for more details Exhaust Inlet 3 IPEX Concentric Termination illustrated see Figure 4 5 b for more details Exhaust I...

Page 19: ...on Roof 3 DuraVent Concentric Termination illustrated see Figure 4 6 c for more details Exhaust Inlet Exhaust Inlet Exhaust must terminate a minimum of 18 above the Air inlet termination see Figure 4 6 a for more details 3 IPEX Concentric termination illustrated see Figure 4 6 b for more details Exhaust Inlet Exhaust Inlet Exhaust must terminate a minimum of 12 above snow level see Figure 4 6 d fo...

Page 20: ...entation included with termination kit for complete installation instructions Min 12 above grade or snow level Exhaust Air inlet Exhaust Air inlet around perimeter Min 12 above grade or snow level Exhaust center Air inlet bottom Exhaust Air inlet Gas Vent Directly Below Keep Free of Obstructions Exhaust Air inlet Min 12 above grade or snow level Vertical Min 18 Horizontal 4 12 or greater than 36 E...

Page 21: ...Min 12 above grade or snow level Vent Screen Vent pipe piece to retain vent screen Exhaust center Air inlet around perimeter Flashing Refer to documentation included with termination kit for complete installation instructions Refer to documentation included with termination kit for complete installation instructions Min 12 above grade or snow level Flashing Exhaust Air inlet Figure illustrates two...

Page 22: ...of per linear foot of vent 6 25 mm per linear 305 mm For applications where excessive condensation is possible per linear foot 13 mm per linear 305 mm is recommended 9 Vent Supports Where required Vent and Air inlet piping shall be secured to the wall for more rigidity All interior vent pipe shall be supported a minimum of every 36 915 mm 10 Roof Exhaust In all roof applications the discharge must...

Page 23: ...tained 3 The pipe is supported every 24 610 mm 4 The exhaust and inlet are sloped back to the boiler elevation for every linear foot 13 mm for every linear 305 mm Figure 4 9 Existing Chimney Chase Way It is permissible to use an existing chimney as a chase way to run the Vent Air inlet piping as long as 1 The chimney is not being used by any other boiler 2 Flue gases don t enter the vacant chimney...

Page 24: ...ft 2 13 m 7 ft 2 13 m R Above a sidewalk driveway or parking lot on public property X X X X S Above a sidewalk driveway on private property between serving both dwellings X X X X T Under a concrete veranda porch deck or balcony 7 24 in 610 mm 24 in 610 mm U Above under or near exterior stairs X X X X V Into a canopy or carport X X X X Notes 1 Canadian installations must comply with the current CSA...

Page 25: ...igure 5 2 Sidewall Termination See Table 5 1 G Letter represents a specific Termination Position Refer to Table 5 1 for corresponding termination clearances Concentric Vent Termination Q Two Pipe Termination F Clearance Q Adjacent to Public Walkway or Driveway Minimum 7ft 2 13 m G Clearances F and G Canada Minimum 3 ft 915 mm The US Minimum 1 ft 305 mm ...

Page 26: ...venting system 2 Visually inspect the venting system for proper size and horizontal pitch Verify that there is no blockage restriction leakage corrosion or other deficiencies which could cause an unsafe condition 3 Insofar as is practical close fireplace dampers all building doors and windows and all doors between the space in which the boilers remaining connected to the common venting system are ...

Page 27: ... a pump that is designed for residential furnaces Condensate Trap Installation Instructions see Figure 6 1 Note the Condensate Trap is factory supplied with the boiler and must be field installed 1 Attach Corrugated Outlet Tube Remove the Outlet Retaining Nut and Outlet Gasket and slide components onto the Corrugated Outlet Tube note orientation gasket should be positioned approximately 1 8 from t...

Page 28: ...ened Corrugated Outlet Tube routed to household drain condensate pump or neutralizer no strain applied on tubing or condensate drain assembly Inlet Gasket Outlet Corrugated Outlet Tube Outlet Retaining Nut Outlet Gasket Inlet Cleanout Cap Condensate Trap Boiler Condensate Drain Outlet Gasket Ball float ...

Page 29: ...es not interfere with the vent pipe or the removal of the valve burner and serviceable components The Boiler is installed such that the gas ignition system components are protected from water dripping spraying rain etc during installation and servicing The gas piping is large enough for all the gas appliances in the home No appreciable drop in line pressure should occur when any unit or combinatio...

Page 30: ... death Manual Gas Shutoff Valve Should overheating occur or the gas supply fail to shutoff close the Manual Gas Shutoff Valve to the boiler Union Flexible Gas Line Piping Recommended to eliminate strain on the boiler gas components only use if acceptable by local codes Drip Leg Rigid Gas Line Piping Use only rigid gas line piping within the boiler cabinet Rigid piping must protrude beyond the outs...

Page 31: ...witch 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 fire department C Use only your hand to turn the gas shutoff valve Never use tools If the handle will not turn by hand don t try to repair it call a qualified service technician Force or attempted repair may res...

Page 32: ... 0 for details 4 Perform at least three ignitions in succession to ensure proper operation 5 After the three successive ignitions unplug the flame sensor and allow the unit to cycle again The flame safety system will allow the unit to go through 5 ignition cycles before going to Loc 1 Once you have confirmed this behavior reinstall the wire on the flame sensor press the reset button and reconfirm ...

Page 33: ...Tx I O Manual Lighting the Boiler 33 Turning Off the Boiler 1 Set the thermostat to the lowest setting and then turn off all power to the boiler 2 Turn the gas shutoff valve to the off position ...

Page 34: ...e 9 1 are attained under all conditions See NOTICE below If possible adjust the line pressure to the Nominal Desired value listed in Table 9 1 while the unit is operating at the maximum modulation rate see Table 9 2 8 Continue observing the gas line pressure until the completion of the combustion analyses in case adjustments need to be made 9 Complete pressure testing and then return the bleed scr...

Page 35: ...bration To calibrate burner operation perform the following procedure using a calibrated combustion analyzer capable of measuring CO2 and CO from Natural and Propane Gas burning boilers 1 Operate the unit at the maximum modulation rate see Table 9 2 2 Ensure the gas line pressure is maintained within tolerance see Table 9 1 3 While at the maximum modulation rate measure the CO2 and CO adjust as ne...

Page 36: ...Tx51 151 Figure 9 2 Gas Valve and Venturi Assembly Tx200 Gas Valve Line Pressure Test Port DO NOT Adjust Throttle Input Adjustment Screw Manifold Pressure Test Port Venturi DO NOT Adjust Venturi Line Pressure Test Port Gas Valve Manifold Pressure Test Port Throttle Input Adjustment Screw ...

Page 37: ... premature heat exchanger failure and property damage Table 10 1 Boiler System Cleansers and Corrosion Inhibitors Application Fernox Product NTI Part Description Boiler Water Treatment F1 Protector 83448 Corrosion inhibitor Cleanser for new and old systems F3 Cleaner 83449 Removes flux grease and carbon residue Cleanser for Retrofits DS 40 System Cleaner 83450 Removes heavy limescale and sludge de...

Page 38: ...tally and elbowing downward If installed in the incorrect orientation horizontally with drain pipe out the bottom the relief valve may not function properly resulting in property damage or personal injury Ensure the discharge of the pressure relief is piped to a location where the steam or water will not cause property damage or serious injury Pressure Gauge Trinity Tx units come with a factory su...

Page 39: ...51C Tx200C Combi CH Piping Brass Street Elbow Factory supplied 1x1x3 4 Brass Tee factory supplied 30 PSI Relief Valve factory supplied Boiler Inlet Boiler Outlet Outlet Inlet Pressure Relief Valve Pressure Gauge Primary Loop factory supplied Gaskets factory supplied 30 PSI Relief Valve factory supplied Boiler Inlet Boiler Outlet DHW Outlet DHW Inlet Pressure Gauge factory supplied Brass Elbow fact...

Page 40: ...models only Central Air Removal Devices i e Micro Bubbler or Air Scoop Pressure Regulating Fill Valve Backflow Preventer Expansion Tank Circulating Pumps Trinity Tx boilers are equipped with three 120VAC pump outputs 1 DHW Pump operates during a Domestic Hot Water demand DHW 2 CH Pump operates during a Central Heat demand CH 3 Boiler Pump operates during any demand Ensure pumps are oriented as per...

Page 41: ... NRF 25 3 UPS26 99 2 0011 Astro 50 3 25 10 8 18 4 1 1 4 NRF 36 3 UPS26 99 3 0011 E7 20 13 5 23 2 1 1 4 PL 36 UPS26 99 3 2400 20 E8 Tx2002 35 10 2 10 1 1 4 NRF 25 3 UPS26 99 2 0011 Astro 50 3 25 14 3 20 1 1 4 NRF 36 3 UPS26 99 3 0011 E9 20 17 9 29 7 1 1 2 PL 553 UPS26 1503 2400 453 E213 Notes 1 Pump sizing based on Primary Secondary plumbing configuration with specified minimum pipe diameter with u...

Page 42: ...rinity Tx boilers are equipped with an automatic air vent to aid in purging of air from the boiler during the initial fill This air vent is not intended to be the primary air removal device in the system Expansion Tank The expansion tank must be sized in accordance with the water volume of the system as well as the firing rate of the appliance It is important to locate the expansion tank and make ...

Page 43: ...d the boiler energizes CH Pump During a Domestic Hot Water DHW demand the boiler de energizes CH Pump and energizes DHW Pump In this configuration both CH Pump and DHW Pump are responsible for water flow through the boiler and must be sized in accordance with Table 10 4 Figure 10 6 Single System Circulator Configuration Combi Used in applications zoned with Zone Valves During a demand for Central ...

Page 44: ...ary Secondary Plumbing non Combi Single System Circulator Configuration Figure illustrates the basic plumbing requirements for a Tx51 151 non Combi boiler installation with a single Central Heating circulator Refer to Figures 10 2 a and 10 2 b for boiler fitting identification ...

Page 45: ...imary Secondary Plumbing non Combi Multiple System Circulator Configuration Figure illustrates the basic plumbing requirements for a Tx151C Combi boiler installation with a single Central Heating circulator Refer to Figures 10 2 c and 10 2 d for boiler fitting identification ...

Page 46: ... Combi Single System Circulator Configuration Figure illustrates the basic plumbing requirements for a Tx Combi boiler installation with a single Central Heating circulator Refer to Figures 10 2 c and 10 2 d for boiler fitting identification Primary Loop factory supplied Pressure Gauge factory supplied ...

Page 47: ...ombi Multiple System Circulator Configuration Figure illustrates the basic plumbing requirements for a Tx Combi boiler installation with a multiple central heating circulators Refer to Figures 10 2 c and 10 2 d for boiler fitting identification Pressure Gauge factory supplied Primary Loop factory supplied ...

Page 48: ...d scaling However in some applications the fouling tendency can be very high e g when using extremely hard water at high temperatures In such cases it is always possible to clean the exchanger by circulating a cleaning liquid Use a tank with weak acid 5 phosphoric acid or if the exchanger is frequently cleaned 5 oxalic acid Pump the cleaning liquid through the exchanger For optimum cleaning the cl...

Page 49: ...solation valves installed hot water line as a throttle valve to regulate the maximum hot water flow rate The Tx Combi has a limited firing rate 151MBH for model Tx151C 199MBH for model Tx200C therefore excessive flow rates will result in cooler hot water temperatures Drain and Isolation Valves Install drain and isolation valves on the cold water inlet and hot water outlet lines as shown in Figures...

Page 50: ...o OFF Procedure for Setting up Domestic Hot Water If the Tx Combi is being installed in an application that uses municipal water often the pressure is high enough to generate flow rates at the faucets that will exceed the appliances capacity to heat it See the following tables to determine the maximum flow rate that can be heated at given inlet and outlet water temperatures Table 11 1 Tx151C DHW M...

Page 51: ... drain fitting to the DHW inlet fitting of the Tx Combi The internal DHW flow sensor senses the water flow and triggers a DHW demand heated water flows from the Tx Combi and enters the Recirculation Inlet fitting of the storage tank Figure 11 2 DHW Piping with Optional Storage Tank Tx151C Tx200C When using a Storage Tank set Preheat Mode Installer Menu setting 2 10 to OFF to prevent the boiler fro...

Page 52: ...el at the bottom of the boiler cabinet see Figure 12 1 Field wiring enters the cabinet through holes located on the bottom underside of the boiler cabinet use suitable strain relief grommets to protect the wires Field wiring connections are to be installed in accordance with instructions provided in Figure 12 2 and Table 12 1 Fuse 120VAC The Trinity Tx is equipped with a 3 15 Amp fuse located at F...

Page 53: ...ain boiler The use of the OD Sensor is required to allow the boiler control to automatically infer the heat load of a central heating system DHW 6 Tank Thermostat Sensor Not Applicable for Tx Combi models Connect the contacts of a DHW Tank Thermostat or leads of an approved DHW Tank Sensor NTI P N 84632 to terminals 3 and 6 When using a Thermostat set DHW mode 2 menu setting 2 08 When using a Sens...

Page 54: ...Field Wiring Tx I O Manual 54 Figure 12 2 Field Wiring ...

Page 55: ...minals 1 and 2 see Figure 12 2 Establish Managing Boiler choose one boiler to be the Managing Boiler this boiler will receive all control wiring and will be used for setting control parameters see steps below All non Managing Boilers must have the S4 switch located on the top right side of the control switched OFF Note the S4 switch is factory set to ON The switch is in the off position when it is...

Page 56: ...witch must be an isolated end switch dry contact Central Heat settings are programed from the Managing Boiler only i e Installer menu settings 2 01 2 02 2 03 2 04 2 05 and 2 06 Tank Thermostat Sensor connect to terminals 3 and 6 of the Managing Boiler DHW settings are programed from the Managing Boiler only i e Installer menu settings 2 07 2 08 and 2 09 Set DHW Mode Installer menu setting 2 08 acc...

Page 57: ...Tx I O Manual Wiring Schematics 57 14 0 WIRING SCHEMATICS Figure 14 1 Tx Connection Diagram ...

Page 58: ...Wiring Schematics Tx I O Manual 58 Figure 14 2 Tx Ladder Logic Diagram ...

Page 59: ... serious injury or death 1 Turn gas shut off valve to the ON position 2 Turn Power on to the boiler 3 Set Controller to the desired settings 4 Turn thermostat up Ignition will occur Operational Checklist 1 System is free of gas leaks 2 System is free of water leaks 3 Water pressure is maintained above 15 PSI 4 All air is purged from the heating system piping 5 Ensure proper water flow rate unit mu...

Page 60: ...e work in the combustion chamber Take all necessary precautions and use recommended personal protective equipment as required Cleaning Checklist 1 Remove the demand for heat allow the post purge cycle to finish turn gas and power supply off 2 Working inside the cabinet swing the control panel out of the way disconnect the cabling to the combustion blower gas valve spark igniter and flame sensor th...

Page 61: ... This boiler contains materials that have been identified as carcinogenic or possibly carcinogenic to humans Table 16 1 Handling Instructions for Refractory Ceramic Fibers RCF Reduce the Risk of Exposure Precautions and Recommended Personal Protective Equipment Avoid contact with skin and eyes Wear long sleeved clothing gloves and safety goggles or glasses Avoid breathing in silica dust Wear a res...

Page 62: ...and personal injury Figure 17 1 de Air Sequence Main Screen Following power up of the boiler after the de air sequence or after 60 seconds of inactivity no buttons pressed the boiler defaults to the Main Screen see Figure 17 2 Under normal operating conditions the Main Screen displays the boiler outlet temperature and water pressure as well as an indication of the current heat demand CH or DHW bur...

Page 63: ...details Figure 17 3 User Menu Navigation Water pressure Water pressure units Radiator flashes during CH demands Faucet flashes during DHW demands Menu button Reset button press and hold to clear lockouts or exit Installer Menu Power button Temperature units Boiler outlet temperature OD reset indicator illuminates when OD sensor is enabled Down button Up button No flame displayed during lockout or ...

Page 64: ... sensor temperature displays reading from outdoor temperature sensor NTI P N 83604 NOTICE when sensor is open not connected display indicates 40 F C or OPEn when sensor is shorted display indicates 176 F 80 C or OPEn 1 09 Return sensor temperature displays reading from boiler inlet temperature sensor NTI P N 84745 1 10 Flue sensor temperature displays reading from boiler flue temperature sensor NT...

Page 65: ...ess the OK button to enter save the new value At this point the value will stop flashing 4 Repeat for the next setting Once complete return to the Main Screen by holding the RESET button Figure 17 4 Installer Menu Navigation Table 17 2 Installer Menu Setting Description Factory Setting 2 01 CH setpoint at OD 0 F establishes the boiler operating temperature during central heat demands when the outd...

Page 66: ...ature boost determines the increase in boiler target temperature for every 15 minutes of continuous central heat demand Only applicable when an outdoor sensor is used i e CH modes 1 2 Target temperature will not exceed CH setpoint setting 2 01 Range 0 to 36 F 0 F 2 07 DHW setpoint establishes a tank temperature setting for DHW mode 1 e g 130 140 F b boiler outlet setpoint for DHW mode 2 e g 170 19...

Page 67: ...W demand Range 0 255seconds 10 sec 2 20 Cascade boiler address assign a unique boiler address for each boiler in a cascade managing boiler address must be set to 1 Managing boiler must have S4 switch set to ON all others must be set to OFF Central heat and DHW demands and setpoints are received and set at the managing boiler only A boiler that is not part of a cascade must have the boiler address ...

Page 68: ...ach occurrence Navigate the Lockout and Error History submenus as follows 1 Navigate to Installer Menu setting 2 34 Lockout History or 2 35 Blocking Error History From this screen the display indicates how long ago the most recent error occurred see Figure 17 5a 2 Press the OK button to display the most recent error and the time between it and the preceding error see Figure 17 5b 3 Press the UP bu...

Page 69: ...t of the screen the specific error code number is displayed in large text to the right see Figure 17 7 Blocking errors are only displayed while a problem exists during which time the burner is not permitted to operate To clear a blocking error the problem must be corrected i e the blocking error will not be cleared by cycling the power off and on or by pressing the RESET button While the blocking ...

Page 70: ...ssure is sufficient check pressure during ignition sequence i e when gas valve opens a If pressure drops below minimum 4 for NG 8 for LP check gas supply line and regulator b If pressure does not move verify 120VDC at valve during ignition if no power check wiring replace control if power is present replace gas valve c If pressure drops slightly proceed to next step 5 Unit ignites but immediately ...

Page 71: ...me present 10 seconds after closing gas valve verify flame is going out immediately following the end of a burner demand check flame sensor replace check condensate drain for blockages increase post purge setting Installer Menu setting 2 30 Loc 28 Flame present before ignition check flame sensor replace check condensate drain for blockages increase post purge setting Installer Menu setting 2 30 Lo...

Page 72: ...cribed under Controller Replacement Instructions see page 73 Err 94 up Controller Malfunction contact NTI check field wiring replace controller Att 2 Outdoor Sensor Shorted controller has sensed a short circuit at the Outdoor sensor check wiring to terminals 3 and 5 and outdoor sensor Att 3 DHW Sensor Open controller has sensed an open circuit at the DHW tank sensor check wiring to terminals 3 and...

Page 73: ...the control the display will prompt you to set the appliance type i e tYPE 0 will automatically be displayed on the screen see Notice below Adjust to the applicable Appliance Type setting see Table 17 4 using the UP DOWN buttons press the OK button to enter the value Check the appliance setting via Installer Menu setting 2 11 make sure it matches the correct boiler model as per Table 17 4 Set the ...

Page 74: ...heat to radiators perform the following steps Ensure there is a heat call from the thermostat radiator symbol on the display will flash during a thermostat demand If uncertain about thermostat operation place a jumper between the boiler s Thermostat terminals If the radiator symbol does not display check outdoor sensor reading User Menu reading 1 08 and compare to the warm weather shutdown setting...

Page 75: ... to COMMON and DHW boiler terminals 3 and 6 see Figure 12 2 o Verify there is a demand from the thermostat when the demand is on DHW temp User Menu reading 1 03 will indicate On or 242 F 117 C when demand is off DHW temp will indicate Off or 14 F 10 C If uncertain about thermostat operation place a jumper between terminals 3 and 6 the faucet symbol will flash on display when there is a DHW demand ...

Page 76: ...tor Resistance vs Temperature Temp F C Resistance Ohms Ω Temp F C Resistance Ohms Ω 22 30 176 133 122 50 3 603 4 20 96 761 131 55 2 986 14 10 55 218 140 60 2 488 32 0 32 650 149 65 2 083 41 5 25 390 158 70 1 752 50 10 19 900 167 75 1 481 59 15 15 710 176 80 1 258 68 20 12 490 185 85 1 072 77 25 10 000 194 90 918 86 30 8 057 203 95 789 95 35 6 531 212 100 680 104 40 5 327 230 110 506 113 45 4 369 S...

Page 77: ...saler Contact your local Installer or Wholesaler for assistance with parts Wholesalers Contact NY Thermal Inc directly when ordering replacement parts 1 506 657 6000 Installers Contact NY Thermal Inc directly if technical assistance required 1 800 688 2575 Figure 19 1 a Tx Heat Engine and Gas Train Tx51 151 Tx151C Gas Valve Blower Assembly 5 48 20 98 17 17 22 19 91 96 27 27 27 27 30 15 29 97 18 21...

Page 78: ...t Tx I O Manual 78 Figure 19 1 b Tx200 Gas Valve Blower Assembly Figure 19 1 c Tx Cabinet Cabinet Vent and Air Inlet Parts 79 8 79 9 14 6 105 7 5 42 41 49 75 39 73 45 50 74 50 46 95 77 35 37 72 78 77 78 44 56 57 ...

Page 79: ...door insulation gasket Tx101 1 84885 Burner Assembly c w door insulation gasket Tx151 Tx151C 1 85056 Burner Assembly c w door insulation gasket Tx200 Tx200C 2 84743 Flue Outlet Gasket all Tx models 3 84597 Blower Mounting Screws M5x12 Hex all Tx models 70 70 70 52 23 61 107 74 There are 5 different Tx Conversion Kits Each kit has the required orifice decal and instructions 113 112 8 Natural Gas to...

Page 80: ...let Inlet Pipe 18mm Tx51 pre s n 72000 17 84734 old Retaining Clip Boiler Outlet Inlet Pipe 19mm Tx81 151 Tx151C pre s n 72000 17 84975 Retaining Clip Boiler Outlet Inlet Pipe 25mm all Tx models post s n 72000 18 84809 old Outlet Pipe 18mm Tx51 pre s n 72000 18 84806 old Outlet Pipe 19mm Tx81 151 pre s n 72000 18 84972 Outlet Pipe 25mm Tx51 200 post s n 72000 18 84804 old Outlet Pipe Combi 19mm Tx...

Page 81: ... 42 84786 Air Inlet Adapter PPS PVC all Tx models 44 84916 Test Port Plug all Tx models 45 84920 Wall Mount Bracket Top all Tx models 46 83505 Gas Line Grommet IPS all Tx models 47 84917 Circulator Cartridge UPS15 78 Tx151C Tx200C 48 84886 Thermal Fuse all Tx models Contact NTI Tech Support before replacing 49 84440 Air Vent Grommet 1875 all Tx models 50 84872 Wall Mount Bracket Bottom all Tx mode...

Page 82: ...alve Harness Tx200 Tx200C 107 84422 Rocker Power Switch all Tx models 109 13701 Relief Valve 30 PSI all Tx models 110 84090 Pressure Gauge Bottom Stem Mount 60 PSI Tx51 200 110 84859 old Pressure Gauge Back Mount 60 PSI Tx151C pre s n 72000 110 85021 Pressure Gauge Top Stem Mount 60 PSI Tx151C Tx200C post s n 72000 111 82616 3 Bird Screen all Tx models 112 84925 Natural Gas to LP Conversion Instru...

Page 83: ...Tx I O Manual Parts List 83 NOTES ...

Page 84: ...NY Thermal Inc 30 Stonegate Drive Saint John NB E2H 0A4 Canada Technical Assistance 1 800 688 2575 Website www nythermal com Fax 1 506 432 1135 ...

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