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Lx Series Installation and Operation Instructions

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Trinity Lx

Indoor Combustion Air Requirements (Lx800 Only)

Drawing  combustion  air  from  the  room  can  result  in  competition  for  combustion  air  with  other  fuel  burning
appliances,  ventilation  air  systems  or  exhaust  sources.  See  Table  4.5  for  a  list  of  design  considerations  and
installation guidelines. Check with applicable codes and authorities regarding specific application requirements.

MERV Filter – The Indoor Combustion Air Kit comes with a 2” MERV 7 filter which is
mandatory for appliance operation. Do not operate the unit using indoor combustion air

without the filter installed. Failure to comply may result in property damage, serious injury or death.

Mandatory Interlocks - Required between motorized dampers and burner ignition controls to ensure adequate
supply or make-up air is provided. The Lx800 comes equipped with auxiliary proving capability. Simply remove
the jumper on the Low Voltage barrier labeled Aux. Proof (T2-7,8) and replace with field supplied end switch
incorporated with motorized damper and/or louver controls.

Wall Openings - Outdoor opening for louvers/grilles must be sized so that the minimum unobstructed area will
provide adequate air flow at high fire, known as the FREE AREA and is expressed in square inches/Btuh. Free
Area (FA) is determined by taking the area of the wall opening less any obstructions. Common louver free areas
range from 35% to 60% of the wall opening, meaning 65% to 40% is obstructed by the frame and blades.

Table 4-5 Indoor Combustion Air Guidelines

Parameters Method / Type

Requirements

NFPA 54 Part 9.3 /
CSA B149 Part 8.0

Comments

Ventilation

applicable codes

Supply Air

Combustion Air

five methods (below)

locate combustion air openings lower

than ventilation air openings

see "Combustion Air Methods";
see "Air Competition"

Indoor Air

by volume

infiltration or air changes/hour

see "Air Competition"

Outdoor Air

by opening area

1 or 2 permanent openings

see "Outdoor Opening"

Comb Indoor/Outdoor

see indoor/outdoor air

calculate each method separately

see "Indoor Air"

"Outdoor Air"

Engineered Air

adequate air

approved engineered design

Combustion
Air Methods

Mechanical Air

outdoor air supplied

0.35cfm/1000Btuh

interlocks mandatory

subject to approval by authority
having jurisdiction

Exhaust Fans

provide make-up air

supply = exhaust

combustion air

Other Appliances

adequate air for all

supply = collective combustion air

Air
Competition

Building Ventilation

additional air

supply = ventilation

combustion air

fuel burning appliances must not
share combustion air with other
appliances or compete for air
with exhaust sources

Damper interlock

on driven member

Interlocks

Fan interlock

with appliance burner

combustion air must be proven prior

to igniting appliance burner

interlocks required by ASME
CSD-1, Part CG-260

Fixed

fully open position

Automatically adjustable

interlocks required

Louvers,
Grilles, &
Dampers

Manually adjustable

not permitted

opening must be sized to provide the

Required Free Area

see "Outdoor Opening"

Opening Free Area

unrestricted flow

Outdoor
Opening

Opening Nominal

gross dimensions

Opening FA must be > Required FA

for Combustion Air.

see "Free Area, Required"

Free Area,
Required

Calculate Required FA
for Combustion Air

1 sq. in./4000 Btuh

Required FA for Lx800 = (1/4000) x

800,000 Btuh = 200 sq. in.

see "Free Area, Opening Size"
and/or "Free Area, Duct Area"

Known FA, specified

Opening FA

Nominal larger than Opening FA.

Nominal,
Opening
Size

Unknown FA, assumed

wood

25%;

metal

75%

Nominal=Required FA/Assumed FA

200 sq. in.

75%

276 sq. in.

select louver/grille/damper with
Opening FA = Required FA

Vertical ducts

1/4000

vertical duct area = FA

Free Area,
Duct Area

Horizontal ducts

1/2000

horizontal duct area = FA / 2

combustion air ducts, minimum
dimension = 3”

Notes:

Placing ventilation and combustion air openings too close to each other may result in short circuiting of air flow.

Combustion air for each appliance must be calculated separately. The outdoor opening size can be a single opening

large enough for the collective total of each appliance in the room or a separate opening for each appliance.

Louvers/dampers must be fixed open or interlocked with fuel burning equipment to prove air flow during operation.

Screens/grilles over air openings create air flow resistance decreasing the effective area of unrestricted flow.

Free Area

(FA) is the minimum unobstructed area needed for adequate air flow at high fire expressed in square inches/Btuh.

Each appliance must be interlocked with the mechanical air supply system in the boiler room to prevent burner

operation when the fan is not operating.

Содержание Lx150-800

Страница 1: ...RTS LIST 47 14 0 TROUBLESHOOTING 57 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 haza...

Страница 2: ...burner Do not try to light the 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...

Страница 3: ...ion Requirements The installation of your NTI Trinity Lx gas appliance must conform to the requirements of this manual your local authority and the National Fuel Gas Code ANSI Z223 1 and or CAN CGA B1...

Страница 4: ...le models and corresponding conversion kit numbers Appliance Vent Air Intake Piping The Trinity Lx is a Direct Vent appliance requiring a Special Venting System Vent and Combustion Air Intake piping m...

Страница 5: ...ted and IAS certified 3 SIGNAGE A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight 8 feet above grade directly in line wi...

Страница 6: ...test procedures prescribed by the U S Department of Energy Ratings have been confirmed by AHRI GAMA excluding Lx400 and Lx800 4 Units sold in Canada are 3 4 NPT 5 Trinity Lx require a special venting...

Страница 7: ...tions For closet installations it is necessary to provide two ventilation air openings as shown in Figure 3 1 a b and c each providing a minimum area equal to 1 in2 per 1000 Btu hr but not less then 1...

Страница 8: ...ers Left Side 12 305 mm Right Side 12 305 mm 6 152 mm max below vent opening Ventilation Air Opening 1 in2 per 1000 Btu hr min 100 in 2 Ventilation Air Opening 1 in2 per 1000 Btu hr min 100 in2 Remova...

Страница 9: ...ee Ventilation Air Opening dimensions in Figure 3 1 2 Clearances can be as low as 12 305 mm if the right side has a clearance of 24 610 mm 3 Water Heaters require a minimum clearance of 36 915 mm in f...

Страница 10: ...ations for appliance weight Mount the appliance to the bracket by aligning the slots in the back of the appliance with the hooks protruding from the wall bracket The top of the slots must rest at the...

Страница 11: ...r to Table 2 1 Specifications Ensure the wall mount bracket is mounted level and flush to the wall with mounting holes on the bottom flange pointed upward and angled away from the wall Mount the appli...

Страница 12: ...s Fixer hydrochloric acid muriatic acid bromide iodine Photo labs chemical plastics processing plants Cement powder crack fill dust cellulose fiber based insulation Concrete plant or construction site...

Страница 13: ...6 PVC Flue Outlet Stainless Steel Adapter factory supplied Coupling 4 Removable factory supplied supplied 90o elbow typical or tee and drain cap option for easy cleanouts Air Inlet 3 Pipe Coupling 3 R...

Страница 14: ...alled on gas fired appliances in CAN US must meet the Standards listed in Table 4 3 Failure to comply could result in fire serious injury or death Notes 1 Refer to Table 4 4 for Allowable Vent and Air...

Страница 15: ...ith Natural Gas When operating with Propane Gas LP the maximum vent length in equivalent feet is limited to 50 3 pipe Maximum equivalent feet may vary depending on model number and vent pipe size i e...

Страница 16: ...ion kits contain more detailed assembly and installation instructions Clearance requirements in this manual supersede those of the instructions included with the vent terminal Side Wall Termination Ki...

Страница 17: ...igure 4 5 a Lx150 200 Figure 4 5 b All Models Two Pipe Side Wall Termination Two Pipe Roof Termination Figure 4 6 a Lx300 400 Figure 4 6 b Lx300 400 Two Pipe Side Wall Termination Two Pipe Side Wall T...

Страница 18: ...a Lx800 Figure 4 7 b Lx800 Two Pipe Side Wall Termination Two Pipe Side Wall Termination Optional Kit Indoor Combustion Air Options Figure 4 8 a Lx800 Only Figure 4 8 b Lx800 Only Side Wall Vent Indoo...

Страница 19: ...nterlocks mandatory subject to approval by authority having jurisdiction Exhaust Fans provide make up air supply exhaust combustion air Other Appliances 2 adequate air for all supply collective combus...

Страница 20: ...tion Concentric Vent Detail Insert vent screen between the end of the appliance exhaust vent and the end cap as shown The End Cap Insert vent screen between the end of the appliance exhaust vent and t...

Страница 21: ...ent Screen Vent Screen Insert vent screen into socket joint of termination elbow Secure by cementing a short piece of venting into the socket Venting Vent Screen Gas Vent Directly Below Keep Free of O...

Страница 22: ...back to the appliance a minimum 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...

Страница 23: ...mm ID for Lx150 200 or 4 114 mm ID for Lx300 400 and 6 165 mm ID for Lx800 13 mm thick Closed Cell Foamed Polyolefin Tubing i e Tundra Seal Plus or equivalent 5 The pipe is supported every 24 610 mm 6...

Страница 24: ...ng 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...

Страница 25: ...gure 5 2 All Models Side Wall Termination Clearances Above Grade G Letter represents a specific Termination Position Refer to Table 5 1 for corresponding termination clearances Concentric Vent Termina...

Страница 26: ...r all models in contrast concentric vent terminations are model specific Vertical Separation Horizontal Separation 4 12 102 mm 305 mm or greater than 36 915 mm From appliance exhaust Minimum 12 305 mm...

Страница 27: ...any unused openings in the common 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 def...

Страница 28: ...unit will shut down and damage to the flame sensor and components can occur NEVER use copper steel or galvanized piping in the construction of the condensate system condensate is very corrosive and w...

Страница 29: ...s The Appliance shall be 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...

Страница 30: ...rigid gas line piping within the appliance cabinet Rigid piping must protrude beyond the outside of the cabinet wall Flexible Gas Line Piping Recommended to eliminate strain on the appliance gas compo...

Страница 31: ...ic 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 fire de...

Страница 32: ...safety system replace the wire on the flame sensor and reconfirm proper lighting If the unit fails to light consistently and smoothly contact NTI for technical assistance at 1 800 688 2575 Never allow...

Страница 33: ...t 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 compl...

Страница 34: ...ly Line Pressure Test Port Orifice Location See Kit 82650 1 Gas In Gas Valve Venturi Air Intake Manifold Pressure Test Port Throttle Input Adjustment Screw Orifice Location See Kit 82650 1 Throttle In...

Страница 35: ...justment Screw Manifold Pressure Test Port outlet flange Gas Valve Venturi Manual Gas Shutoff Valve Air Intake Gas In Line Pressure Test Port inlet flange Remove cover to make adjustments to the throt...

Страница 36: ...ailure to follow these instructions may result in serious injury or death Combustion Calibration To calibrate burner operation perform the following procedure using a calibrated combustion analyzer ca...

Страница 37: ...flue gas analysis Re install plug once sampling completed to prevent flue gas leakage during appliance operation Failure to comply with these instructions will result in serious injury or death Test P...

Страница 38: ...ing Using Test Port Test Port Combustion Analyzer FLUE GAS TEST PORT PLUG Remove test port plug to perform flue gas analysis Re install plug once sampling completed to prevent flue gas leakage during...

Страница 39: ...Lx Series Installation and Operation Instructions Trinity Lx 39 10 0 WIRING SCHEMATICS Figure 10 1 a Lx150 400 Connection Diagram...

Страница 40: ...Trinity Lx Installation and Operation Instructions Lx Series 40 Figure 10 1 b Lx150 400 Ladder Logic Diagram...

Страница 41: ...Lx Series Installation and Operation Instructions Trinity Lx 41 Figure 10 2 a Lx800 Connection Diagram...

Страница 42: ...Trinity Lx Installation and Operation Instructions Lx Series 42 Figure 10 2 b Lx800 Ladder Logic Diagram...

Страница 43: ...or Plastic Venting in Section 4 0 Failure to follow these instructions can result in explosion serious injury or death 1 Turn gas shut off valve to the ON position 2 Turn Power on to appliance 3 Set C...

Страница 44: ...1 LWCO not required on water tube boilers flow switch is mandatory If required by other codes must be installed as a Limit Water Temperature High Limit 2 Limit CW 410 c 2 15 1 ASME CSD 1 compliant Sa...

Страница 45: ...t the high vent pressure switch with a 1 2 wrench At the blower end support the brass fitting body with a 1 2 wrench to keep it from rotating while loosening the compression fitting nut with a 9 16 wr...

Страница 46: ...or removing this appliance This appliance contains materials that have been identified as carcinogenic or possibly carcinogenic to humans Table 14 1 Handling Instructions for Refractory Ceramic Fibers...

Страница 47: ...r is being referenced Building Owners Replacement parts are available from your stocking wholesaler Contact your local Installer or Wholesaler for assistance with parts Wholesalers Contact NY Thermal...

Страница 48: ...ls Heat Exchanger Gas Valve Blower and Burner Assembly Figure 13 2 Lx150 400 Common Electrical Housing Controller and Display Module 56 58 57 52 70 59 62 71 61 63 69 58 60 67 81 68 51 54 65 58 10 11 5...

Страница 49: ...Lx Series Installation and Operation Instructions Trinity Lx 49 Figure 13 3 a Lx300 400 Models Cabinet Vent and Air Intake Parts 74 44 42 39 50 49 46 47 72 73 75 48 37 76 78 77 45 41...

Страница 50: ...ation and Operation Instructions Lx Series 50 Figure 13 3 b Lx300 400 Models Heat Exchanger Gas Valve Blower and Burner Assembly 3 5 6 7 36 11 10 34 33 31 29 28 30 24 25 19 18 17 16 9 15 4 35 13 79 14...

Страница 51: ...ies Installation and Operation Instructions Trinity Lx 51 Figure 13 4 a Lx800 Model Cabinet Vent and Air Intake Parts 76 77 73 72 95 95 95 95 78 101 101 42 98 49 48 96 96 47 46 47 41 74 100 99 104 75...

Страница 52: ...ns Lx Series 52 Figure 13 4 b Lx800 Model Heat Exchanger Gas Valve Blower and Burner Assembly 1 6 2 3 4 5 7 9 36 11 10 11 32 34 31 33 14 14 89 90 86 89 88 87 20 19 25 15 24 30 85 26 93 Reverse Angle V...

Страница 53: ...Air Gas Inlet Pipe Stabilor Lx800 4 82766 All Models Blower Gasket Lx Series 4 84026 800 Blower Gasket Lx800 5 82052 150 EBM Blower RG130 Lx100 150 not Lx150E 5 82661 150E 200 300 EBM Blower RG148 120...

Страница 54: ...x to Heat Exchanger Gasket 24 83605 All Models Inlet Sensor Single Lx Series 25 83706 150 150E 200 300 400 Plug Brass 1 4 NPT Lx Series 25 84075 800 Plug Brass 1 2 NPT Lx800 26 83395 150 CAN Heat Exch...

Страница 55: ...ll Mounting Support Bottom Lx300 400 51 83508 All Models Display Molding Lx Series 52 83592 All Models Trinity Touch Screen Display Lx Series 53 83876 150 150E 200 Electrical J box Cover R1 Left Lx100...

Страница 56: ...s Valve Orifice O ring Large Lx400 80 84057 800 Coupling 2 Brass 81 84010 All Models System Sensor Pipe Sensor TSA00A4 Lx Series 82 84087 800 Gasket Cork Lx800 83 84045 800 Cross Brass M5 Thread To Ba...

Страница 57: ...in the electrical panel supplying power to the appliance is not tripped o The service switch if applicable is in the ON position There is a heat call from the thermostat o Verify 24VAC to thermostat...

Страница 58: ...d knurled knob of their respective holders Push the knob toward the panel and twist approximately 1 4 turn counter clockwise To access Fuse C remove the two 10 pan head Phillips screws and lift the to...

Страница 59: ...ng to the cabinet 3 Pivot the housing down until its bottom edge rests against the extended air tube or cabinet sides 4 Verify that the two mating 4 position single row Molex housings are securely con...

Страница 60: ...be inserted and removed from the controller with power applied Restore the settings to the new controller with the following procedure To display the Summary page touch the Home icon at the upper left...

Страница 61: ...o problem normal operation Hold 65 will normally be displayed momentarily during the drive to light off Blown fuse Check Fuse A blown fuse prevents blower from operating Faulty blower If Fuse A is goo...

Страница 62: ...and Cleanser See Table 2 1 in Appendix B Dirty heat exchanger Inspect and if required clean the combustion chamber and or heat exchanger Refer to 14 0 Annual Manintenance and Inspection and Supplemen...

Страница 63: ...hes on or off If the controller is providing 24VAC to the gas valve and the wiring is intact it should be possible to detect if the valve is responding Lockout 113 Flame circuit timeout A flame circui...

Страница 64: ...gnal cable disconnected Verify that the 5 position Molex connector on the wiring harness is securely connected to its mating connector on the blower Blower power disconnected Verify that the 3 positio...

Страница 65: ...M write Lockout 20 Internal fault Flame ripple and overflow Hold 21 Internal fault Flame number of sample mismatch Hold 22 Internal fault Flame bias out of range Hold 23 Internal fault Bias changed si...

Страница 66: ...Outlet high limit Hold 80 DHW high limit Disabled 81 Delta T limit Hold Lockout 82 Stack limit Lockout 83 90 RESERVED 91 Inlet sensor fault Hold 92 Outlet sensor fault Hold 93 DHW sensor fault Hold 9...

Страница 67: ...Combustion pressure and Flame OFF Lockout 158 Main valve ON Lockout 159 Main valve OFF Lockout 160 Ignition ON Lockout 161 Ignition OFF Lockout 162 Pilot valve ON Lockout 163 Pilot valve OFF Lockout...

Страница 68: ...15 Invalid Purge rate proving setting Lockout 216 Invalid Run flame failure response setting Lockout 217 Invalid Run stabilization time setting Lockout 218 Invalid Stack limit enable setting Lockout 2...

Страница 69: ...verification table was detected 20 26 RESERVED 27 Safety processor was reset 28 Application processor was reset 29 Burner switch was turned OFF 30 Burner switch was turned ON 31 Program Module PM was...

Страница 70: ...id 78 Fan gain up was invalid 79 Fan minimum duty cycle was invalid 80 Fan pulses per revolution was invalid 81 Fan PWM frequency was invalid 82 89 RESERVED 90 Modulation output type was invalid 91 Fi...

Страница 71: ...id 132 CH P gain was invalid 133 CH I gain was invalid 134 CH D gain was invalid 135 CH OFF hysteresis was invalid 136 CH ON hysteresis was invalid 137 CH sensor type was invalid 138 CH hysteresis ste...

Страница 72: ...n outdoor set point was invalid 238 LL min water set point was invalid 239 LL outdoor temperature range was too small minimum 12 C 22 F 240 LL water temperature range was too small minimum 12 C 22 F 2...

Страница 73: ...air flow switch was off during Pre Ignition time 301 Abnormal Recycle Interrupted air flow switch was off during Main Flame Establishing Period 302 Abnormal Recycle Ignition failed due to interrupted...

Страница 74: ...HFS LCI shorted 350 Abnormal Recycle Hardware HFS LFS shorted 351 Abnormal Recycle Invalid zero crossing 352 Abnormal Recycle fault stack sensor 353 Abnormal Recycle stack limit 354 Abnormal Recycle d...

Страница 75: ...was incorrect 479 Internal error Safety key bit 1 was incorrect 480 Internal error Safety key bit 2 was incorrect 481 Internal error Safety key bit 3 was incorrect 482 Internal error Safety key bit 4...

Страница 76: ...NY Thermal Inc 65 Drury Cove Road Saint John NB E3H 2Z8 Canada Technical Assistance 1 800 688 2575 Website www nythermal com Fax 1 506 432 1135...

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