Laars FT Series Installation And Operation Instructions Manual
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Laars FT Series Installation And Operation Instructions Manual

Laars FT Series Installation And Operation Instructions Manual

Wall-mounted, modulating gas, condensing, heating only, boiler
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Installation and Operation Instructions
FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,
qualified in hot water boiler and heater installation and maintenance. Improper installation and/or operation
could create carbon monoxide gas in flue gases which could cause serious injury, property damage, or
death. Improper installation and/or operation will void the warranty.
If the information in this manual is not
followed exactly, a fire or explosion may
result causing property damage, personal
injury or loss of life.
Do not store or use gasoline or other
flammable vapors and liquids in the vicinity of
this or any other appliance.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not
use any phone in your building.
• Immediately call your gas supplier from a
nearby phone. Follow the gas supplier's
instructions.
• If you cannot reach your gas supplier, call
the fire department.
Installation and service must be performed
by a qualified installer, service agency, or gas
supplier.
Installation and Operation
Instructions for
THE
Wall-Mounted, Modulating
Gas, Condensing, Heating Only, Boiler
Model FTHW
WARNING
FT
SERIES
80,000 BTU/hr
100,000 BTU/hr
120,000 BTU/hr
140,000 BTU/hr
199,000 BTU/hr
Natural Gas (NG) - Factory Configuration
•
•
Propane Gas (LP) - Field-Convertible
Assurez-vous de bien suivres les instructions
données dans cette notice pour réduire au
minimum le risque d'incendie ou d'explosion
ou pour éviter tout dommage matériel, toute
blessure ou la mort.
Ne pas entreposer ni utiliser d'essence ou ni
d'autres vapeurs ou liquides inflammables dans
le à proximité de cet appareil ou de tout autre
appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE
• Ne pas tenter d'allumer d'appareils.
• Ne touchez à aucun interrupteur. Ne pas vous servir
des téléphones dans le bâtiment où vous vous
trovez.
• Appelez immédiatement votre fournisseur de
gaz depuis un voisin. Suivez les instructions
du fournisseur.
• Si vous ne pouvez rejoindre le fournisseur de
gaz, appelez le sservice des incendies.
L'installation et l'entretien doivent être assurés par
un installateur ou un service d'entretien qualifié
ou par le fournisseur de gaz.
Document 1342H
AVERTISSEMENT
GAZ:

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  • Page 1 Installation and Operation Instructions Document 1342H Installation and Operation Instructions for SERIES Wall-Mounted, Modulating Gas, Condensing, Heating Only, Boiler Model FTHW 80,000 BTU/hr 100,000 BTU/hr 120,000 BTU/hr 140,000 BTU/hr 199,000 BTU/hr Natural Gas (NG) - Factory Configuration • • Propane Gas (LP) - Field-Convertible FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician, qualified in hot water boiler and heater installation and maintenance.

  • Page 2: Table Of Contents

    SECTION 4 Installation CH Set Point Change Mode ......59 NOTE: For Cascading Installations, please refer to Status Display Mode ........60 document 1349 ‘Cascading the FT Series Boiler’, Installer Mode ..........61 available online. Storage Mode ..........64 Outdoor Reset Adjustment ......65 Location and Clearances .......

  • Page 3: Introduction

    All installations must be made in accordance with This manual provides information necessary for the 1) American National Standard Z223.1/NFPA54-Latest Edition installation, operation, and maintenance of the FT Series Heating Only, Boiler. All application and installation “National Fuel Gas Code” or procedures must be read and reviewed completely before 2) CSA B149.1 “Natural Gas and Propane Installation Code”...

  • Page 4: Section 2 Product Characteristics Model Nomenclature (Model Number)

    Page 4 1.2 Included with the Appliance (continued) Items Descriptions 199 MBH Propane Conversion Orifice 80 / 100 / 120 / 140 MBH O-Ring and Gasket Kit Outdoor Temperature Sensor with anchors and screws Auto Fill Valve and Backflow Preventer Valves are NOT included (Field Supplied).

  • Page 5: Specifications, 80 Mbh And 100 Mbh

    The FT Series Heating Only, Boiler Page 5 Specifications, 80 MBH and 100 MBH Model Name FTHW80 FTHW100 80,000 Btu/h 100,000 Btu/h Gas Input Rate 16,000 Btu/h 20,000 Btu/h Indoor / Wall hung type Installation Sealed Combustion Direct / Single Vent /Sidewall...
  • Page 6 Page 6 Specifications, 125 MBH and 140 MBH Model Name FTHW120 FTHW140 120,000 Btu/h 140,000 Btu/h Gas Input Rate 24,000 Btu/h 28,000 Btu/h Indoor / Wall hung type Installation Sealed Combustion Direct / Single Vent /Sidewall Flue System Vent Vent Run 2˝(50ft) , 3˝(100ft) Schedule 40 CPVC, PP 0.213˝...
  • Page 7 The FT Series Heating Only, Boiler Page 7 Specifications, 199 MBH Model Name FTHW199 199,000 Btu/h Gas Input Rate 19,900 Btu/h Indoor / Wall hung type Installation Flue System Sealed Combustion Direct / Single Vent / Concentric Vent Vent Run 2˝(50ft) , 3˝(100ft) Schedule 40 CPVC, PP...

  • Page 8: Dimensions

    Page 8 Dimensions 80/100/120/140 FTHW Heating only boiler Description Diameter Air Intake Collar 3˝ Vent Pipe Collar 3˝ ¼˝ 'CH' Supply ¼˝ 'CH' Return 3/4˝ Gas Inlet 1/2˝ Condensate Line...
  • Page 9 The FT Series Heating Only, Boiler Page 9 2.3 Dimensions FTHW Heating only boiler Description Diameter Air Intake Collar 3˝ Vent Pipe Collar 3˝ ¼˝ 'CH' Supply ¼˝ 'CH' Return 3/4˝ Gas Inlet 1/2˝ Condensate Line...

  • Page 10: Names Of Components

    Page 10 Names of Components 80/100 FTHW Heating only boiler 4 SCREWS CONTROL DISPLAY COVER (HINGES UPWARD) To remove the cover, unthread the 4 phillips head screws. Keep the screws in a safe place for re-application of cover. This is typical for all models of the FT. Name of Component Name of Component Air Vent (air eliminator)
  • Page 11 The FT Series Heating Only, Boiler Page 11 2.4 Names of Components (continued) 120/140 FTHW Heating only boiler Name of Component Name of Component Air Vent (air eliminator) CH Pressure Gauge Air Intake Collar ‘CH’ Return Adapter Air / Gas Mixing Pipe...
  • Page 12 Page 12 2.4 Names of Components (continued) FTHW Heating only boiler Name of Component Name of Component Air Vent (air eliminator) CH Pressure Gauge Air Intake Collar ‘CH’ Return Adapter Gas Valve Condensate Trap Gas Inlet Pipe 2 Condensate Adapter Air / Gas Mixing Pipe CH Return Temperature Sensor Gas Inlet Pipe 1...

  • Page 13: Product Flow Paths And Characteristics

    The FT Series Heating Only, Boiler Page 13 Product Flow Paths and Characteristics Water in the heating pipe is used for space heating. Combustion Air Intake Vent Gas Input Space Heating Space Heating CH Supply CH Return Water Supply Water Return...

  • Page 14: Section 3 Safety Regulations Safety Symbols

    Page 14 SECTION 3 Safety Regulations Safety Symbols WARNING WARNING To avoid product damage, personal injury, or even FOR YOUR SAFETY READ BEFORE possible death, carefully read, understand, and OPERATING follow all the instructions in the Installation and Operation manual before installation, operation If you do not follow these instructions exactly, a and service the Boiler.
  • Page 15 The FT Series Heating Only, Boiler Page 15 damaging condition that might affect the operation of the unit. Boiler must be checked by a qualified technician before resuming operation. DO NOT use this Boiler if any part has been under water.

  • Page 16: Safety Precautions And Proper Use

    Page 16 Safety Precautions and Proper Use When in Operation CAUTION Before Operation 1. Caution for Gas leak 1. Check the Gas Type (NG/LP) Frequently check for a gas leak at the gas connection When using or moving the unit for the first time, check portion with soapy water.

  • Page 17: Section 4 Installation

    The FT Series Heating Only, Boiler Page 17 SECTION 4 Installation WARNING NOTE: For Cascading Installations, please refer to document 1349 ‘Cascading the FT Series Installations must comply with • All the local, state, provincial, and national codes, Boiler’, available online. laws, regulations and ordinances.

  • Page 18: Wall Mount Bracket

    Page 18 Wall Mount Bracket 3" to Top of Unit 4.2.2 The installation height and location Anchors for your FT depends on your installation scenario. With all clearances considered, and given adequate positioning for air supply and venting, you will need to determine the best Concrete, position to mount the Wall Mount Bracket.

  • Page 19: Combustion Air

    The FT Series Heating Only, Boiler Page 19 Combustion Air FT boilers must have provisions for combustion Method 2: One permanent opening, commencing and ventilation air in accordance with the applicable within 12” (300mm) of the top of the enclosure, shall requirements for Combustion Air Supply and Ventilation be permitted.
  • Page 20 Page 20 NOTICE AVIS The instructions for the installation of the venting Les instructions d'installation du système system shall specify that the horizontal portions of d'évacuation doivent préciser que les sections the venting system shall be supported to prevent horizontales doivent être supportées pour prévenir sagging;...

  • Page 21: Venting, Exhaust

    ___________________________________________ NOTICE For Cascading Installations, please refer to WARNING document 1349 ‘Cascading the FT Series Boiler’, available online. Use of cellular core PVC (ASTM F891), cellular core CPVC, or Radel® (polyphenolsulfone) in non-metallic venting systems is prohibited and covering non-...

  • Page 22: General Location Guideline

    Page 22 Venting, Exhaust (continued) WARNING be from a certified manufacturer. Failure to vent this Boiler in accordance with these instructions could cause a fire, resulting 4 . Vent system components must not be mixed in severe property damage, personal injury or with alternate manufacturers certified components and/or unlisted components.

  • Page 23: Locations For Vent Pipe Terminator

    The FT Series Heating Only, Boiler Page 23 Locations for Vent Pipe Terminator 4.6.1 Direct Venting Clearances U.S. Installations (see note 1) Canadian Installations (see note 2) A= Clearance above grade, veranda, porch, 12 inches (30 cm) 12 inches (30 cm)

  • Page 24: Venting Requirements In The Commonwealth Of Massachusetts

    Page 24 Venting Requirements in the 4.6.2 Commonwealth of Massachusetts b. In the event that the requirements of the In Massachusetts the following items are required if the side-wall exhaust vent termination is less than subdivision cannot be met at the time of completion of installation, the owner shall have a period of thirty seven (7) feet above finished grade in the area (30) days to comply with the above requirements,...
  • Page 25 The FT Series Heating Only, Boiler Page 25 NOTICE AVIS NE PAS ÉVENT COMMUNE FT UNITÉS. FT unités DO NOT COMMON VENT FT UNITS. FT units ne sont jamais autorisés à partager un évent are never permitted to share a vent with Catégorie I avec les appareils.

  • Page 26: Air Supply And Vent Connections

    Page 26 Air Supply and Vent Connections Vent / Air Pipe Lengths 4.7.1 3˝ Combustion Air / Vent Pipe 2˝ Combustion Air / Vent Pipe Boiler model FTHW (all sizes) 100´ (30M) 50´ (15M Table 5. Maximum Vent / Air Pipe Lengths for either 3” or 2 “ Pipes Propane models are limited to 25 NOTE: For each elbow, reduce the maximum allowable length equivalent feet of 2”...

  • Page 27: Indoor Combustion Air

    The FT Series Heating Only, Boiler Page 27 Indoor Combustion Air 4.7.3 Read and Follow Sections 4.3 Guidelines First. 1. Insert the termination end cap into the intake air duct. 2. Provide two openings to allow for circulation of combustion air as specified by ANSI Z224.1/NFPA 54.
  • Page 28 Page 28 4.8 Vent / Air Pipe Termination (continued) Horizontal Vent Termination • Direct Vent - Sidewall Termination Exterior Wall Vent Screens are required 1” MIN Exhaust Elbow 12” MIN 12” MIN Exhaust Apart Exhaust Screen NOTE: The Exhaust must Air Intake Screen NOTE: Must be 12”...
  • Page 29 The FT Series Heating Only, Boiler Page 29 • Direct Vent - Optional Side wall Terminations Exterior Wall Concentric Vent Termination • Direct Vent - Optional Horizontal Exterior Wall and Vertical Concentric Vent Side Wall Kit (2” or 3”) Side Wall Kit Exhaust (2”...

  • Page 30: Gas Supply And Piping

    Page 30 Gas Supply and Piping WARNING: Gas piping should be supported by suitable hangers or Open flame can cause gas to ignite and result in floor stands, not the appliance. property damage, severe injury, or loss of life. Review the following instructions before proceeding with the installation.
  • Page 31 The FT Series Heating Only, Boiler Page 31 Natural Gas Pipe Sizing (Maximum) Maximum capacity of pipe in cubic feet of gas per hour for gas pressures of 0.5psi or less and a pressure drop of 0.5 Inch water column. (Based of a 0.60 Specific gravity gas) For reference only.
  • Page 32 Page 32 4.9 Gas Supply and Piping (continued) Propane Gas Pipe Sizing (Maximum) Intended use : Pipe Sizing Between Single-or Second-Stage (Low Pressure) Regulator and Appliance. For reference only. Referenced from gas pipe manufacturer specifications for actual delivery capacity. The DOE standard for Natural Gas is 1100 BTU/ft3.
  • Page 33 The FT Series Heating Only, Boiler Page 33 The gas connection fitting on the unit is 3 / 4 ˝ male To facilitate any future maintenance, it is also recommended that an approved gas union fitting NPT. be installed in the supply line between the shut-off The supply line must be sized for the maximum valve and the 3 / 4 ˝...
  • Page 34 Page 34 4.9 Gas Supply and Piping (continued) Suggested Natural Gas (NG) Layout Suggested Propane Gas (LP) Layout Gas Regulator (Supply Press 12˝ ) LP GAS TANK Boiler must be installed downstream of the gas meter for adequate gas supply. Boiler gas connection pipe not less than a 1/2”.

  • Page 35: Gas Supply Pressure

    The FT Series Heating Only, Boiler Page 35 4.10 Gas Supply Pressure The minimum and maximum inlet gas line pressures must be Natural Gas LP Gas 10.5˝ WC 13.0” WC Maximum Pressure Maximum Pressure 3.5˝ WC 8.0” WC Minimum Pressure...

  • Page 36: Gas Setup And Adjustment

    CO 2 @ 0-2,000 ft altitude (Natural Gas). side. Check for proper manifold gas pressure. Refer to Table C. Propane Gas (LP) Natural Gas (NG) The FT Series, Heating Only, Gas Conversion Kit Document 4296D value 2˝ VENT 3˝ VENT 2˝...

  • Page 37: High Altitude Installations

    The FT Series Heating Only, Boiler Page 37 4.12 High Altitude Installations. 2,000’ to 10,000’ The FT is shipped with a default factory setting for installation at an altitude of 0 to 2000’ (approx). For maximum efficiencies at higher altitudes (2,000’ to 10,000’), the FT does have an adjustment in the Installer Parameters Mode.

  • Page 38: Natural Gas To Propane Conversion

    Page 38 The FT Series, Heating Only, Gas Conversion Kit Document 4296D 4.13 Natural Gas to Propane Conversion AUTODESK � � � � � � � � � � Kit # R20773 The FT Series, heating only, condensing boiler is confi gured for Natural Gas (NG) from the factory.
  • Page 39 The FT Series Heating Only, Boiler Page 39 The FT Series, Heating Only, Gas Conversion Kit Document 4296D Using a Phillips screwdriver, remove the 4 screws on the front cover. See Figure A. COMBUSTION COMBUSTION VALVE TEST PORT TEST PORT...
  • Page 40 Page 40 The FT Series, Heating Only, Gas Conversion Kit Document 4296D 4.13 Natural Gas to Propane Conversion (continued) MIN Fire Normal Operation MAX Fire Normal Operation NG Natural LP Propane 3” Vent Size 2” Vent Size These 3 bottom switches must be set per unit SIZE.
  • Page 41 The FT Series Heating Only, Boiler Page 41 The FT Series, Heating Only, Gas Conversion Kit Document 4296D Propane Gas (LP) Natural Gas (NG) value 2˝ VENT 3˝ VENT 2˝ VENT 3˝ VENT 9.5~11% 8.5~10.5% MFTHW 80/100 All sizes 120/140/175/199 9~10.5 %...

  • Page 42: Plumbing Guidelines

    Page 42 4.14 Plumbing Guidelines 4.14.1 External Plumbing and Water CAUTION Connection Guidelines Use at least the MINIMUM pipe size for the entire - Ensure pipe material meets local codes and boiler loop piping (connecting boiler to and from industry standards. the primary/secondary connection).

  • Page 43: Zoning With Zone Valve

    The FT Series Heating Only, Boiler Page 43 4.14 Plumbing Guidelines 4.14.4 Zoning with zone valves - In a valve based system, there is one circulator pump at the boiler and each heating zone has a zone valve which opens when the zone demands it.

  • Page 44: Zoning With Circulation Pumps

    Page 44 4.14 Plumbing Guidelines 4.14.5 Zoning with circulation pumps - Each heating zone of a pump based system has its own circulator pump which runs when that zone demands it. SECONDARY LOOP - Each zone thermostat goes to (SPACE HEATING) SECONDARY LOOP a controller which controls the (SPACE HEATING)

  • Page 45: Indirect Water Heating

    The FT Series Heating Only, Boiler Page 45 4.14 Plumbing Guidelines SECONDARY LOOP (SPACE HEATING) 4.14.6 Indirect Water Heating - Installer is responsible for all equipment and detailing required by local codes. Do not - The minimum pipe size of CH piping should be 1 ¼˝ in diameter.

  • Page 46: Multiple Units Using Zones Pumps And An Indirect For Dhw

    Page 46 4.14 Plumbing Guidelines 4.14.7 Multiple units using zones pumps and an indirect for DHW Expansion tank (Diaphragm-type) Automatic air vent Air separator SECONDARY LOOP (SPACE HEATING) Circulation pump Do not Check valve exceed 12" Drain valve Make-Up Water Note Gate valve Backflow preventer...

  • Page 47: Pressure Relief Valve

    The FT Series Heating Only, Boiler Page 47 4.15 Pressure Relief Valve External pressure relief valves must be installed. Observe the following. Failure to comply with the guidelines on installing the pressure relief valve and discharge piping can result in personal injury, death or substantial property damage.

  • Page 48: Disposal Of Condensate

    Page 48 4.16 Disposal of Condensate High efficiency gas condensing Boilers create condensation when operating. Condensation has acidic (pH) of approximately 4-5. Condensate must be drained in accordance with all local regulations. Follow your local code with regards to the disposal of condensation. One of 4 disposal methods must be followed 1.

  • Page 49: Electrical Wiring Connections

    The FT Series Heating Only, Boiler Page 49 4.17 Electrical Wiring Connections WARNING Install wiring and electrically ground boiler in accordance with authority having jurisdiction or, in the absence of such requirements, follow the National Electrical Code, NFPA 70, and/or CSA C22.1 Electrical Code-Part 1 in Canada.

  • Page 50: Dip Switches

    DIP switches 6 and 7 have to be set in the OFF position when the boiler is running normally. DIP switches 1, 2, and 3 are system switches and are factory set to the boiler model and size The FT Series, Heating Only, Gas Conversion Kit Document 4296D and should not be touched.

  • Page 51: Control Board, Electrical Diagram

    The FT Series Heating Only, Boiler Page 51 4.19 Control Board, Electrical Diagram Control Board...

  • Page 52: Ladder Diagram

    Page 52 4.20 Ladder Diagram...

  • Page 53: Electrical Connections

    The FT Series Heating Only, Boiler Page 53 4.21 Electrical Connections Connector HT SELV Description #, Location, Type Label CASE GROUND HT (120V~) Power Supply Line HT (120V~) HT (120V~) Central Heating Pump HT (120V~) Ignitor HEAT/CP2 HT (120V~) CH Pump...
  • Page 54 Page 54 4.21 Electrical Connections (cont) Connector HT SELV Description #, Location, Type Label Flame Detect Sensor SELV (5V) OP.S Operating water temperature sensor SELV (5V) DH.S SELV (5V) Exhaust temperature sensor CH Return temperature sensor SELV (5V) LWD1140-14 DHW temperature sensor or BG.S SELV (5V) Mechanical...

  • Page 55: Section 5 Control Display And Operation

    The FT Series Heating Only, Boiler Page 55 SECTION 5 Control Display and Operation Control Dial and Buttons The Control Display Status Light (constant green when operating normally) The Control Display has a Control Dial (E), 4 buttons (A, B, C, D), and a Liquid Crystal Display (with 72 back-lit segments).

  • Page 56: Lcd Overview

    Page 56 LCD Overview Symbol Name Description Service Reminder mode Service Reminder mode indication Outside Temperature Mode Outside Temp setting indication Anti-freeze mode Anti-freeze mode indication Storage mode Storage mode indication Information mode Information mode indication Communication state Communication state indication Time /Dispaly/Install mode indication Time setting mode Fan operating mode...

  • Page 57: Operating Mode

    The FT Series Heating Only, Boiler Page 57 Operating Mode Operating Mode After the Power is turned on, and/or the Control Display is turned on , the Control Display will go through a ‘Start Up’ checklist and briefly show a sequence of diagnostic codes before entering into the ‘Operating Mode.

  • Page 58: Setting The Clock

    Page 58 Setting the Clock The P-950EH Control Display does NOT have a daily timer or programmable thermostat. Setting the Clock Press and hold the ‘Clock button’ for about 5 seconds. Set the ‘Year’ by turning the dial . And to Save.

  • Page 59: Set Point Change Mode

    The FT Series Heating Only, Boiler Page 59 CH Set Point Change Mode CH Set point Change Mode To change CH Setpoint, button. The CH Icon and current press the C CH Setpoint will flash. Turn the E dial clockwise to increase, and counterclockwise to decrease CH setpoint, until desired temperature is reached.

  • Page 60: Status Display Mode

    Adjust to the setting that you require and then press (tap) Dial E to save and to Exit. NOTE: For Cascading Installations, please refer to document 1349 ‘Cascading the FT Series Boiler’, available online. Status Display Parameter Digital Display Description...

  • Page 61: Installer Mode

    The FT Series Heating Only, Boiler Page 61 Installer Mode These changes are to be made only by a qualified technician. To c hange any of the Installer Parameters, Start by turning OFF the Power to the Display Control. Then, with the power OFF, Press and HOLD (more than 5 seconds) the Button B to get into the Installer Mode.
  • Page 62 Page 62 5.7 Installer Mode (continued) Index Parameter Description Numbers Sets the design supply water temperature based on the maximum outdoor design temperature. Minimum supply Minimum Supply temperature must be set at least 9°F below the maximum 7: cL temperature supply temperature.
  • Page 63 The FT Series Heating Only, Boiler Page 63 Index Parameter Description Numbers Cascade Number Range: 0 (Master), 1(slave 1), …., 19(slave 19) 27: Cn Cascade Number “29: CP” has to be set with the total number of units in the cascade before “28: Cn”...

  • Page 64: Storage Mode

    Page 64 Storage Mode Storage Mode / Indirect Water Heater To change Storage Mode Temp, First turn OFF the power to the Control Display. to get into the Installer Mode. Then Press and Hold Button B Rota te Dial E until you find Tap Dial E to enter Storage Mode.

  • Page 65: Outdoor Reset Adjustment

    The FT Series Heating Only, Boiler Page 65 Outdoor Reset Adjustment Outdoor Reset varies the control setpoint based on the outdoor temperature. The reset function works as shown in Figure ‘CH Outdoor Reset’. When the 4:OH outdoor air temperature reaches “high outdoor...

  • Page 66: Error Mode

    Page 66 5.11 Error Mode The Control Display will show the following information when an Error is presented. Flashing Indicate Indicator Error ‘ Er : ’ sign Segment Error Code Er:11 If Communication state is activated NOTE: When communication between the Control Display and the main controller is lost, the will not be displayed.

  • Page 67: Section 6 Error Codes Error Code Table

    The FT Series Heating Only, Boiler Page 67 SECTION 6 Error Codes Error Code Table Recover Error Error Code Possible Remedies Code Description methods Press the Power button to clear the Error Code. If Error happens again: 1. Monitor the gas pressure to the appliance while in operation. Ensure pressure is between 3.5 and 14”...
  • Page 68 Page 68 Error Code Table (continued) Recover Error Possible Remedies Error Code Description Code methods This Error Code will go away when exhaust temperature decreases. If Error happens again: Venting (Exhaust) Sensor 1. Check Venting (exhaust) temperature sensor. Ensure connections are secure. Soft Lock Open or Short 2.
  • Page 69 The FT Series Heating Only, Boiler Page 69 Recover Error Possible Remedies Error Code Description Code methods Register, Ram, Rom, I/O This Error Code will go away when the condition is remedied. Port, AD Abnormal, Important If Error happens again:...

  • Page 70: Fault Tree Analysis

    Page 70 Fault Tree Analysis 1. Flame detection...
  • Page 71 The FT Series Heating Only, Boiler Page 71 6.2 Fault Tree Analysis (continued) 2. Gas Detection 3. ‘Storage’, ‘DHW’, ‘OP’, ‘CH overheat’, ‘Exhaust heat’ Sensor detects Error code contents DHW NTC open or short OP NTC open or short Exhaust NTC open or short...

  • Page 72: Section 7 Trouble Shooting

    Page 72 SECTION 7 Trouble Shooting Diagnostics Question Answer Make sure that the ON/OFF button on the Control Display has been turned ON. If the monitor on the Control Display is blank, make sure the power cord is plugged and 4A fuses on the main controller in the units are good. Burner does not ignite Make sure that there is water supplied to the unit.

  • Page 73: Suggested Corrective Actions

    The FT Series Heating Only, Boiler Page 73 Suggested Corrective Actions This controller is able to record information about the boiler’s condition at the time of the five previous faults or errors. Refer to the Section ‘5.10 Error Mode’ of this manual.
  • Page 74 Page 74 7.2 Suggested Corrective Actions (continued) Corrective Action(s) Fault Condition Diagnostic Check all the temperature readings of the boiler on the DIAGNOSTICS Occurs when a - TEMPERATURES menu to determine temperature if any sensors are currently displayed as SHORT or OPEN. sensor has Reset using manual electrically...

  • Page 75: Section 8 Maintenance Annual Startup & General Maintenance

    The FT Series Heating Only, Boiler Page 75 SECTION 8 Maintenance Annual startup & general maintenance Regular Maintenance - Check the power source. Make sure that the power cord is correctly connected. The main power line is connected to - This Manual should be placed in a safe and dry the manual switch box inside a Boiler.

  • Page 76: Flushing The Boiler

    Page 76 8.1 Annual startup & general maintenance (continued) - Check the air vent If the air vent valve seems to work freely without lever completely, the valve or discharge line may be leaking, replace cap “A” by twisting all the way on. blocked.

  • Page 77: Freeze Protection

    10. Reinsert the filter and ensure the filter cap is securely tightened. 11. Connect electrical power to the boiler. Freeze Protection FT Series Boilers are certified for indoor use only, and NOTICE are not design-certified for placement outdoors. Proper precautions for freeze protection are...

  • Page 78: Section 9 Installation Check Quick View

    Page 78 Freeze Protection (continued) SECTION 9 Installation Check Quick View WARNING Before Installing Do NOT use automotive antifreeze or ethylene - Make sure that there is enough space for installing glycol. Use only inhibited propylene glycol Water and gas line. solutions which are specially formulated for Verify vent/air termination is located as required.

  • Page 79: Final Check Lists

    The FT Series Heating Only, Boiler Page 79 Final Check Lists Final check : Connecting the power supply Final check : Installation Conditions. • Please check that the power is 120V AC. • Is the Boiler properly mounted on the wall? •...

  • Page 80: Section 10 Parts

    Page 80 SECTION 10 Parts Casing _ Feature Casing _ 10.1 Parts Lists and Illustrations (80-140) List Casing Parts (80 MBH to 140 MBH) Note Part Description Number O-Ring P7 FT1601 Terminal bl Exhaust vent duct Assembly FT1002 Terminal bl Stainless band (Ø100) FT1603 Front cover...
  • Page 81 The FT Series Heating Only, Boiler Page 81...
  • Page 82 Heat Exchanger _ Page 82 Heat Exchanger Parts (80 MBH to 140 MBH) Part Description Number O-22 O-Ring P22 FT1644 3/8" Packing FT1060 FT1646 3/4" Packing 1" Packing FT1691 Exhaust pipe FT1067 Exhaust sensor bracket FT1529 EX-Adaptor FT1784 Exhaust overheat sensor FT1307 Exhaust pipe packing (lower) FT1666...
  • Page 83 The FT Series Heating Only, Boiler Page 83 at Exchanger _ Feature...
  • Page 84 Page 84 Fan & Gas Valve _ Blower Parts List (80 MBH to 140 MBH) Part Description Notes Desc Number Fan guide FT1940 Gas valve Ass Damper packing FT1955 60-1 Gas valve outle Damper packing FT1941 60-2 Gas valve O-R Damper body FT1915 60-3...
  • Page 85 & Gas Valve _ Feature The FT Series Heating Only, Boiler Page 85 Before January of 2018 & Gas Valve _ Feature Feature After January of 2018...

  • Page 86: Parts Lists & Illustrations (Model 199)

    Casing _ Casing _ Page 86 Feature Feature Casing _ 10.2 Parts Lists and Illustrations (199) List Casing Parts (199 MBH) Part Notes Description Number O-Ring P7 FT1601 Terminal b Exhaust vent duct Assembly FT1002 Terminal b Stainless band (Ø100) FT1603 Front cove Packing...
  • Page 87 The FT Series Heating Only, Boiler Page 87...
  • Page 88 Page 88 Heat Exchanger _ List Heat Exchanger Parts (199 MBH) Part Notes Description Number O-22 O-Ring P22 FT1644 Temper 3/8" Packing FT1060 Low lev Flame d 3/4" Packing FT1646 bracket 1" Packing FT1691 Flame d Exhaust pipe FT1823 Flame d Exhaust sensor bracket FT1529 CH Out...
  • Page 89 The FT Series Heating Only, Boiler Page 89 Heat Exchanger _ Feature...
  • Page 90 Fan & Gas Valve _ Page 90 List Blower Parts (199 MBH) Part Notes Description Number Fan guide FT1769 Damper packing FT1770 Damper body FT1915 Fan rubber packing (1.6t) FT1082 Fan guide packing FT1772 Fan Assembly FT1916 55-1 FT1406 55-2 Fan sealing O-Ring ST1038 55-3...
  • Page 91 The FT Series Heating Only, Boiler Gas Valve _ Page 91 Feature...
  • Page 92 Notes: For Product and Service VIDEOS Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement. 800.900.9276 • Fax 800.559.1583 Customer Service and Product Support: Industrial Way, Rochester, NH, USA 03867 20-01 Document 1342H...

This manual is also suitable for:

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