Laars FTCF140 Installation And Operation Instructions Manual
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Laars FTCF140 Installation And Operation Instructions Manual

Floor-standing, modulating gas, condensing, combination 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
Floor-Standing, Modulating
Gas, Condensing, Combination Boiler
Model MFTCF
140,000 BTU/hr
199,000 BTU/hr
Natural Gas (NG) - Factory Configuration
•
•
Propane Gas (LP) - Field-Convertible
WARNING
FT
SERIES
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 1320D
AVERTISSEMENT
GAZ:

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  • Page 1 Installation and Operation Instructions Document 1320D Installation and Operation Instructions for SERIES Floor-Standing, Modulating Gas, Condensing, Combination Boiler Model MFTCF 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

    TABLE OF CONTENTS 4.16 Disposal of Condensate ........47 SECTION 1 Product Accessories Introduction ............3 4.17 Electrical Wiring Connections ......48 4.18 DIP Switches ............49 Included with the Unit ...........3 4.19 Control Board, Electrical Diagram ......50 4.20 Ladder Diagram ...........51 SECTION 2 Product Characteristics 4.21 Electrical Connections .........52 Model Nomenclature (model number) ....5 Specifications ............6...

  • Page 3: Introduction

    1) American National Standard Z223.1/NFPA54-Latest Edition “National Fuel Gas Code” or Included with the Unit Item Description Floor-Standing, Combination Boiler FTCF140 or FTCF199 FTCF140 FTCF199 LP Conversion Kit. The FT Series, Floor-Standing, Gas Conversion Kit The FT Series, Floor-Standing, Gas Conversion Kit Document 4290C...
  • Page 4 Page 4 1.2 Included with the Unit (continued) Items Descriptions Mesh screen (3" mesh) Outdoor Sensor with Screws and Anchors Pressure Relief Valve (CH LINE 3/4″ 30psi) Auto Fill Valve and Backflow Preventer Valves are NOT included (Field Supplied).

  • Page 5: Section 2 Product Characteristics Model Nomenclature (Model Number)

    The FT Series Floor Standing, Combination Boiler Page 5 SECTION 2 Product Characteristics Model Nomenclature (model number) The Model Nomenclature is shown on your Rating Plate and consists of a series of letters and numbers ( Nomenclature ) that further identifies the characteristics of your FT. FUEL SERIES SIZE...

  • Page 6: Specifications

    If CO 2 readings in Max Fire and MIN fi re are acceptable, then skip ahead to Step 23. If not, then open the Model Name FTCF140 Gas Valve Adjustment Port by removing the cap screw with a 4mm Allen wrench. See Figure E.
  • Page 7 Detector, Exhaust Temperature High Limit Switch, Water Safety Devices Temperature High Limit Switch Note; The greatest installation difference between the FTCF140 and FTCF199, other than general output capability (BTU’s), is that the air inlet and exhaust vents are opposite. See Section 2.4...

  • Page 8: Dimensions

    Page 8 Dimensions 3.0" 7.6 cm FTCF140 3.3" 8 cm 15.7" 40 cm 9.2" 23 cm 3” O EXHAUST VENT 68 cm 26.7" 3” O AIR INLET 20.5" GAS CONNECTION 9.3" 39.3" HYDRONIC SUPPLY 2.7" 52.4" 133 cm HYDRONIC RETURN 4.3"...
  • Page 9 FTCF199 4.0" 10.4 cm Note: The greatest installation difference between the 6.6" 16.9 cm FTCF140 and FTCF199, other than general output 15.7" 40 cm capability (BTU’s), is that the air inlet and exhaust vent are opposite. 3” O AIR INLET 68 cm 26.7"...

  • Page 10: Names Of Components

    Page 10 Names of Components FTCF140 Name of Component Name of Component Exhaust Vent Condensate Drain Hose DHW Inlet Adapter Air Pressure Sensor Blower Condensate Trap DHW Outlet Adapter PCB Bracket Condensate Heat Exchanger Hose Flame Detection Sensor CH Return Connection...
  • Page 11 The FT Series Floor Standing, Combination Boiler Page 11 FTCF199 Note: The greatest installation difference between the FTCF140 and FTCF199, other than general output capability (BTU’s), is that the air inlet and exhaust vent are opposite. Name of Component Name of Component...

  • Page 12: Product Flow Paths And Characteristics

    Page 12 Product Flow Paths and Characteristics 2.5.1 Central Heating flow. Combination Boiler Heating Mode. acteristics Operating Mode Water in the heating pipe is used for space heating. Space Heating ng mode. (Central Heating = CH mode) Water Supply Space Heating d for space heating.

  • Page 13: Domestic Hot Water Flow

    The FT Series Floor Standing, Combination Boiler Page 13 Characteristics Operating Mode 2.5.2 Domestic Hot Water flow. Combination Boiler Domestic Hot Water Mode. f Hot water mode. (Domestic Hot Water = DHW mode) Cold water passes through the exchanger and is heated via a mini indirect tank. Sub heat exchanger’, then cold water transformed into hot water.

  • 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 Floor Standing, Combination 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 The FT Series Floor Standing, Combination Boiler Page 17 WARNING Do not use the appliance for any other purpose than for heating and hot water. Do not store combustibles or flammable material such as gasoline near the appliance. Do not store other items on or near this boiler. Do not store combustible (flammable) materials such as papers.

  • Page 18: Location And Clearances

    Page 18 SECTION 4 Installation Location and Clearances The appliance should be located to provide clearances on all sides for maintenance and inspection. It should from water (dripping, spraying, rain, etc.) during not be located in an area where leakage of any operation and service (circulator replacement, connections will result in damage to the area adjacent to control replacement, etc.).
  • Page 19 The FT Series Floor Standing, Combination Boiler Page 19 WARNING Installations must comply with • All the local, state, provincial, and national codes, laws, regulations and ordinances. • National Fuel Gas Code, ANSI Z223.1 – The latest version. • National Electrical Code. •...

  • Page 20: Combustion Air

    Page 20 SECTION 4. Installation (continued) Combustion Air with the outdoors or shall communicate through a FT boilers must have provisions for combustion and ventilation air in accordance with the applicable vertical or horizontal duct to the outdoors or spaces requirements for Combustion Air Supply and Ventilation that directly communicate with the outdoors and shall in the National Fuel Gas Code, ANSI Z223 1;...
  • Page 21 The FT Series Floor Standing, Combination Boiler Page 21 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 22: Venting (Exhaust)

    Page 22 SECTION 4. Installation (continued) Venting (Exhaust) NOTICE AVIS NE PAS ÉVENT COMMUNE FT UNITÉS. FT DO NOT COMMON VENT FT UNITS. FT units are unités ne sont jamais autorisés à partager un never permitted to share a vent with Category I évent Catégorie I avec les appareils.

  • Page 23: General Location Guideline

    The FT Series Floor Standing, Combination Boiler Page 23 4 . Vent system components must not be WARNING mixed with alternate manufacturers certified components and/or unlisted Failure to vent this Boiler in accordance components. with these instructions could cause a fire, resulting in severe property damage, 5 .

  • Page 24: Locations For Vent Pipe Terminator

    Page 24 Locations for Vent Pipe Terminator 4.5.1 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) deck, or balcony See note 6 See note 6 B= Clearance to window or door that may be Direct vent only: 12 inches (30cm);...

  • Page 25: Venting Requirements In The Commonwealth Of Massachusetts

    The FT Series Floor Standing, Combination Boiler Page 25 Venting Requirements in the 4.5.2 Commonwealth of Massachusetts In Massachusetts the following items are required if b. In the event that the requirements of the the side-wall exhaust vent termination is less than subdivision cannot be met at the time of completion seven (7) feet above finished grade in the area of installation, the owner shall have a period of thirty...

  • Page 26: Common Vent Test

    Page 26 NOTICE AVIS NE PAS ÉVENT COMMUNE FT UNITÉS. FT unités DO NOT COMMON VENT FT UNITS.FT units are ne sont jamais autorisés à partager un évent never permitted to share a vent with Category I Catégorie I avec les appareils. appliances.

  • Page 27: Air Supply And Vent Connections

    Page 27 Air Supply and Vent Connections 3˝ Combustion Air / Vent Pipe 2˝ Combustion Air / Vent Pipe Combination Boiler Model FTCF140/199 100´ (30M) 50´ (15M Table 5. Maximum Vent / Air Pipe Lengths for either 3” or 2 “ Pipes Propane models are limited to 25 equivalent feet of 2”...

  • Page 28: Indoor Combustion Air

    FTCF 2. Provide two openings to allow for circulation of combustion air as specified by ANSI Z224.1/NFPA 54. In Canada refer to CAN/CSA B-149.1 Model FTCF140 FTCF199 Maximum Input (BTU/H) 140,000 199,000 If indoor make up air is provided, 13 1/4"...
  • Page 29 The FT Series Floor Standing, Combination Boiler Page 29 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 30 Page 30 • Direct Vent - Optional Side wall Terminations 4.8 Vent / Air Pipe Termination Exterior Wall (continued) Exterior Wall Side Wall Kit (2” or 3”) Side Wall Kit Concentric Vent Termination Exhaust • Direct Vent - Optional Horizontal (2”...

  • Page 31: Gas Supply And Piping

    The FT Series Floor Standing, Combination Boiler Page 31 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 32 The gas connection fitting on the unit is To facilitate any future maintenance, it is also recommended that an approved gas union fitting 1/2”(FTCF140) or 3/4”(FTCF199) male NPT. be installed in the supply line between the shut-off valve and the 3/4” male NPT connection on the The supply line must be sized for the maximum Combination boiler.
  • Page 33 AUTODESK � � � � � � � � � � Combination boiler must be installed downstream of the gas meter for adequate gas supply. Combination boiler gas connection pipe not less than a 1/2” (FTCF140) or 3/4” (FTCF199). Suggested Natural Gas (NG) Layout...

  • Page 34: Gas Supply Pressure

    1/2 psi (3.5 kPa). Loosen the pressure port bolts before you check the gas inlet pressure. FTCF140 FTCF199 Inlet Gas Pressure Port...
  • Page 35 The FT Series Floor Standing, Combination Boiler Page 35 The FT Series, Floor-Standing, Gas Conversion Kit Document 4290C FTCF199 FTCF140 Gas Valve Adjustment Port (under the cap screw) Manifold Pressure Port Figure E It may be necessary to go back and forth between HI Fire and LOW Fire several times (and making adjustments ONLY at LOW Fire), before CO 2 at both are within acceptable levels.
  • Page 36 Gas Type ‘LP’ Manifold pressure 2" VENT 3" VENT 2" VENT 3" VENT MAX Fire " " " " -0.15 -0.216 -0.15 -0.216 FTCF140 ” ” ” ” 0.002 0.079 MIN Fire MAX Fire ” ” -0.134 -0.173 FTCF199 ”...

  • Page 37: High Altitude Installations

    The FT Series Floor Standing, Combination 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

    Control Display. Turn OFF the GAS and WATER supply to the FT (valves are located on the plumbing pipes.) Propane Gas Natural Gas (NG) Part # (LP) Part # FTCF140 FT1412N5 FT1412P5 Nozzle FTCF199 FT1780 FT1802...
  • Page 39 Unthread the Front Panel Knob at the top of the front panel and then remove the entire panel. See Figure A. With the internal components exposed, locate the gas inlet pipe of your model. See Figure B. FTCF199 FTCF140 GAS INLET PIPE GAS VALVE...
  • Page 40 Gas Type ‘LP’ Manifold pressure 2" VENT 3" VENT 2" VENT 3" VENT MAX Fire " " " " -0.15 -0.216 -0.15 -0.216 FTCF140 ” ” ” ” 0.002 0.079 MIN Fire MAX Fire ” ” -0.134 -0.173 FTCF199 ”...
  • Page 41 The FT Series Floor Standing, Combination Boiler Page 41 4.13 Natural Gas to Propane Conversion (continued) The FT Series, Floor-Standing, Gas Conversion Kit Document 4290C FTCF199 FTCF140 Gas Valve Adjustment Port (under the cap screw) Manifold Pressure Port Figure E It may be necessary to go back and forth between HI Fire and LOW Fire several times (and making adjustments ONLY at LOW Fire), before CO 2 at both are within acceptable levels.

  • Page 42: Plumbing Guidelines

    Page 42 4.14 Plumbing Guidelines 4.14.4 Diaphragm Type Expansion Tank 4.14.1 External Plumbing and Water Connection Guidelines - The air in a diaphragm-type expansion tank is separated from the water by a flexible rubber - Ensure pipe material meets local codes and membrane.
  • Page 43 The FT Series Floor Standing, Combination Boiler Page 43 4.14 Plumbing Guidelines (continued) Diaphragm Type Expansion tank Air separator SECONDARY LOOP (SPACE HEATING) Circulation pump Flow Check valve Do not Pressure relief valve exceed 12" Ball valve Note Isolation valve Anti-scald rated Mixing Valve 1”...

  • Page 44: Zoning With Circulation Pumps

    Page 44 4.14.5 Zoning with Circulation Pumps - Each heating zone of a pump based system has its own circulator pump which runs when the zone needs it. - Each zone thermostat goes to a controller which controls the pumps. CAUTION Scalding Risk: Manufacturer strongly recommends the...

  • Page 45: Zoning With Zone Valves

    The FT Series Floor Standing, Combination Boiler Page 45 4.14.6 Zoning with Zone Valves - In a valve based system, there is one circulator pump at the boiler and each heating zone has its own valve. - Each thermostat is wired directly to the corresponding zone valve. Contacts in the zone valves provide a proper signal to the boiler when the valve is opened.

  • Page 46: Pressure Relief Valves

    Page 46 4.15 Pressure Relief Valves 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. WARNING Do not operate this combination boiler before installing a Pressure Relief Valve (PRV) that...

  • Page 47: Disposal Of Condensate

    The FT Series Floor Standing, Combination Boiler Page 47 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.

  • Page 48: Electrical Wiring Connections

    Page 48 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. ELECTRICAL SHOCK HAZARD —...

  • Page 49: Dip Switches

    Gas Type ‘LP’ Manifold pressure 2" VENT 3" VENT 2" VENT 3" VENT MAX Fire " " " " -0.15 -0.216 -0.15 -0.216 FTCF140 ” ” ” ” 0.002 0.079 MIN Fire MAX Fire ” ” -0.134 -0.173 FTCF199 ”...

  • Page 50: Control Board, Electrical Diagram

    Page 50 4.19 Control Board, Electrical Diagram...

  • Page 51: Ladder Diagram

    The FT Series Floor Standing, Combination Boiler Page 51 NEUTRAL 4.20 Ladder Diagram Pump1 Relay 1 Pump2 Relay 2 Pump3 Relay 6 Gas Valve Relay 4 Relay Relay Ignitor FILTER Power Detector Primary SMPS Secondary DC 30V Speed Control DC 14 V DC 5V Water Air Pressure Sensor...

  • Page 52: Electrical Connections

    Page 52 4.21 Electrical Connections Connector Description SELV #, Location, Type Label GROUND Power Supply Line HT (120VAC) HT (120V~) Mixing Pump HT (120V~) Igniter HEAT/CP2 HT (120V~) Central Heating Pump 65001WS-12 Gas Valve HT (120V~) Power Supply Neutral HT (120V~) AC Power COM Line HT (120V~) 9-12...
  • Page 53 The FT Series Floor Standing, Combination Boiler Page 53 4.21 Electrical Connections (continued) Connector Description SELV #, Location, Type Label SELV (5VDC) Flame Detect Sensor OP.S Operation water temperature sensor SELV (5VDC) DH.S DHW temperature sensor SELV (5VDC) CH Return sensor SELV (5VDC) LWD1140-14 BG.S...

  • Page 54: Control Dial And Buttons

    Page 54 SECTION 5 Control Display and Operation Control Dial and Buttons 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). This section of this manual gives instruction on how to navigate into the many functions of the FT and to change temperature set points, set system variables and controller parameters.

  • Page 55: Lcd Overview

    The FT Series Floor Standing, Combination Boiler Page 55 LCD Overview Anti-Freeze Storage Lock Communicating Central Mode Heating Heat Status and Installer Summer Mode Modes (warm weather Flame shutdown) Signal Outside Temp Mode or 0-10V Pump Numeric Display Domestic Hot Water Mode Central Heat mode icon can be adjusted CH mode Anti-freeze mode...

  • Page 56: Operating Mode

    Page 56 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. It will then display the following information. Example Indicate 110°F...

  • Page 57: Status Display Mode

    The FT Series Floor Standing, Combination Boiler Page 57 Status Display Mode Digital Display Status Display Parameter Description O:ot Outdoor temperature Current Outdoor temperature A: Li or A: GA Flow unit Current flow value(Li: L/m, GA: GPM) b: It CH Return Water Temperature Current Return Water Sensor Temperature C: Fr Fan rpm Current fan rpm value...

  • Page 58: Dhw Set Point Change Mode

    Page 58 AUTODESK � � � � � � � � � � DHW Set Point Change Mode DHW Set Point Change Modes The display shows the following information when changing water heating temperature set points. Changing between Celsius and Fahrenheit When the button D is pressed (for more than 5 seconds), temperature unit will toggle...

  • Page 59: Set Point Change Mode

    The FT Series Floor Standing, Combination Boiler Page 59 CH Set Point Change Mode Changing between Celsius and Fahrenheit When the button D is pressed (for more than 5 seconds), temperature unit will toggle between °C and °F. Example Indicate 110°F Current Operating Temperature Temperature sign Celsius or Fahrenheit letter...

  • Page 60: Storage Mode

    Page 60 Storage Mode Example Indicate 110°F Current Operating Temperature Temperature sign Celsius or Fahrenheit letter °C or °F Display and Controller are communicating If flame detected Storage mode indication If Pump is operating To change Storage Mode Temp, First turn OFF the power to the Control Display. to get into the Installer Mode.

  • Page 61: Installer Mode

    The FT Series Floor Standing, Combination Boiler Page 61 AUTODESK � � � � � � � � � � 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.
  • Page 62 Page 62 Index Parameter Description History fault code (E0~E9) 1: EH History entry Clear Error History Clearing of error History buffer 2: cE System initialize System initialize to default 3: In Flow unit gallon / liter 4: Fu Heat storage function On/Off 5: St Heat storage function Maximum Outdoor...

  • Page 63: Outdoor Reset Adjustment

    The FT Series Floor Standing, Combination Boiler Page 63 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 outdoor air temperature reaches 6:OH “high outdoor temperature setpoint”, the control point setting is adjusted to 17:cL “low boiler temperature setpoint”.

  • Page 64: Error Mode

    Page 64 5.11 Error Mode Flashing Example Indicate Error ‘ Er : ’ will flash Er:11 Error Code Er:11 Display and Controller are communicating NOTE: When communication between the Control Display and the main controller is lost, the will not be displayed.

  • Page 65: Section 6 Error Codes Error Code Tables

    The FT Series Floor Standing, Combination Boiler Page 65 SECTION 6 Error Codes Error Code Tables Error Error Code Recover 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 66 Page 66 Error Recover Error Code Description Possible Remedies 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 2.
  • Page 67 The FT Series Floor Standing, Combination Boiler Page 67 SECTION 6. Error Codes (continued) Error Recover Error Code Description Possible Remedies Code methods This Error Code will go away when the condition is remedied. Mixing Valve Initial Value If Error happens again: Error 1.

  • Page 68: Fault Tree Analysis

    Page 68 Fault Tree Analysis 6.2.1 Flame detection...

  • Page 69: Gas Detection

    The FT Series Floor Standing, Combination Boiler Page 69 6.2 Fault Tree Analysis (continued) 6.2.2 Gas Detection ‘Storage’, ‘DHW’, ‘OP’, ‘CH overheat’, ‘Exhaust heat’ Sensor detects 6.2.3 Error code contents DHW Storage Temperature Sensor open or short DHW NTC open or short OP NTC open or short Exhaust NTC open or short...

  • Page 70: Diagnostics

    Page 70 SECTION 7 Trouble Shooting Diagnostics Question Answer Make sure that the ON/OFF button on the Control Panel has been turned ON. If the monitor on the Control Panel 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 71: Suggested Corrective Actions

    The FT Series Floor Standing, Combination Boiler Page 71 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. Corrective Action(s) Display Condition...
  • Page 72 Page 72 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 Check wire harness for loose TEMPERATURE...

  • Page 73: Section 8 Maintenance Annual Startup & General Maintenance

    The FT Series Floor Standing, Combination Boiler Page 73 SECTION 8 Maintenance Annual Startup & General - Check the power source. Maintenance Make sure that the power cord is correctly connected. The main power line is connected to Regular Maintenance the manual switch box inside a Combination boiler.
  • Page 74 Page 74 - Check the air vent - Check the pressure relief valve If the air vent valve seems to work freely without leaking, replace cap “A” by twisting all the way on. WARNING Loosen cap “A” one turn to allow vent to operate. If vent does not operate correctly, replace the vent.

  • Page 75: Flushing Or Draining

    The FT Series Floor Standing, Combination Boiler Page 75 Flushing or Draining Flushing the Heat Exchanger is a complicated procedure that should only be done by an authorized technician or licensed professional. Keep in mind that improper maintenance can void your warranty. 1.

  • Page 76: Freeze Protection

    Page 76 Freeze Protection FT Series Boilers are certified for indoor use only, and WARNING are not design-certified for placement outdoors. Proper precautions for freeze protection are Do NOT use automotive antifreeze or ethylene recommended for boiler installations in areas where glycol.

  • Page 77: Quick View

    The FT Series Floor Standing, Combination Boiler Page 77 SECTION 9 Installation Check Final Check Lists Quick View Final check : Installation Conditions. Before Installing - Make sure that there is enough space for • Is the Boiler properly mounted on the wall? •...

  • Page 78: Sight Glass

    Page 78 9.2 Final Check Lists (continued) Final check : Connecting the power supply • Please check that the power is 120V AC. • Have you checked the polarity of the electrical connection? Final check : Pressure relief valve • Have you installed an approved pressure relief valve on the boiler? •...
  • Page 79 The FT Series Floor Standing, Combination Boiler Page 79 This page intentionally left blank.

  • Page 80: Section 10 Parts List And Illustrations

    Casing _ Feature&List Page 80 SECTION 10 Parts List and Illustrations. FTCF140 Casing _ Feature&List Casing _ Feature Part Notes Description Number Part Notes Description Number O-Ring P7 FT1601 O-Ring P7 FT1601 Air inlet duct Ass’y FT1010 Air inlet duct Ass’y...
  • Page 81 The FT Series Floor Standing, Combination Boiler Page 81 Part Description Notes Number 16-5 O-Ring P85 FT1607 16-6 Exhaust vent adaptor(Inside) FT1608 16-7 O-Ring P75 FT1609 Upper AS Cover FT1891 Air pressure sensor(18) FT1015 PCB Control (GTX-920CP) R2080600 FT1616 Control bracket FT1617 Terminal block(10P) FT1021...
  • Page 82 Heat Exchanger & Pump_ Feature&List Page 82 Heat Exchanger FTCF140 Heat Exchanger & Pump_ Feature&List Part Notes Description Part Notes Number Description Number O-14 O-Ring P14 FT1642 O-14 O-Ring P14 FT1642 O-16 O-Ring P16 O-16 O-Ring P16 FT1643 FT1643 O-22 O-Ring P22...
  • Page 83 The FT Series Floor Standing, Combination Boiler Page 83 Part Notes Description Number Heat Exchanger BK FT1649 Air Vent FT1321 Exhaust overheat sensor FT1307 Exhaust sensor bracket FT1529 Exhaust pipe FT1654 Exhaust pipe packing (lower) FT1666 Heat Exchanger Ass'y FT1655 68-1 Burner Ass'y FT1309 68-2 Overheat sensor...

  • Page 84: Domestic Hot Water

    Page 84 Domestic Hot Water FTCF140 DHW Tank _ List Part Description Notes Number O-14 O-Ring P14 FT1642 O-15 O-Ring P15 FT1685 O-16 O-Ring P16 FT1643 O-18 O-Ring P18 FT1687 DHW Tank _ List 1/2" Packing FT1645 3/4" Packing FT1646...
  • Page 85 The FT Series Floor Standing, Combination Boiler Fan & Gas Valve _ Page 85 Feature Blower FTCF140 Fan & Gas Valve _ List Part Notes Description Number 1/2" Spiral packing #2 FT1953 1/2" Spiral packing FT1710 Stainless band(Ø60) FT1078 Air intake hose...

  • Page 86: Mftcf 199

    Casing _ Feature&List Page 86 CASE Part Notes Description FTCF199 Number O-7 O-Ring P7 FT1601 Exhaust vent duct Assembly FT1002 12-1 Stainless band (Ø100) FT1603 12-2 Packing FT1604 12-3 Exhaust vent duct FT1611 12-4 Exhaust testing cap FT1606 12-5 O-Ring P85 FT1607 12-6 Exhaust vent adaptor (Inside) FT1608...
  • Page 87 The FT Series Floor Standing, Combination Boiler Page 87 Part Description Notes Number Air inlet duct Assembly FT1909 13-1 Air inlet duct FT1605 Upper AS Cover FT1891 Air pressure sensor (80) FT1804 Control bracket FT1617 PCB Control (GTX-920CP) R2080603 FT1898 Terminal block (6p) FT1827 Control sub bracket...
  • Page 88 Heat Exchanger & Pump_ Feature&List Page 88 Heat Exchanger FTCF199 Heat Exchanger & Pump_ Feature&List Part Part Description Notes Description Notes Number Number O-16 O-Ring P16 FT1643 O-16 O-Ring P16 FT1643 O-22 O-Ring P22 FT1644 O-22 O-Ring P22 FT1644 1" Packing FT1691 Flow Sensor Clip FT1208...
  • Page 89 The FT Series Floor Standing, Combination Boiler Page 89 Part Description Notes Number Exhaust Pipe FT1823 Exhaust sensor bracket FT1529 Exhaust overheat sensor FT1307 EX-Adaptor FT1784 Exhaust pipe packing (lower) FT1836 Heat Exchanger Assembly FT1837 63-1 Burner Assembly FT1796 63-2 Burner upper case FT1760 63-3 Burner gasket FT1824...
  • Page 90 Page 90 Domestic Hot Water FTCF199 DHW Tank _ List Part Description Number O-15 O-Ring P15 FT1685 O-16 O-Ring P16 FT1643 DHW Tank _ O-18 O-Ring P18 FT1687 List 1/2" Packing FT1645 Part 3/4" Packing FT1646 Description Notes Number 1" Packing FT1691 O-15 O-Ring P15 FT1685...
  • Page 91 The FT Series Floor Standing, Combination Boiler Page 91 Blower FTCF199 Fan & Gas Valve _ List Part Description Notes Number Fan guide FT1769 Damper packing FT1770 Damper body FT1915 Fan rubber packing (1.6t) FT1082 Fan guide packing FT1772 Fan Assembly FT1916 88-1 Fan FT1406...
  • Page 92 The FT Series Floor Standing, Combination Boiler 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 1320D...

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