Installation and Operation Instructions Document 1342H Installation and Operation Instructions for THE FT 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 maint
TABLE OF CONTENTS SECTION 1 Product Accessories 1.1 1.2 Introduction....................................................... 3 Included with the Unit........................................ 3 SECTION 2 Product Characteristics 2.1 2.2 2.3 2.4 2.5 Model Nomenclature (model number)............... 4 Specifications, 80 MBH and 100 MBH.............. 5 Dimensions....................................................... 8 Names of Components...................................
The FT Series Heating Only, Boiler SECTION 1 1.1 Product Accessories Introduction This manual provides information necessary for the installation, operation, and maintenance of the FT Series Heating Only, Boiler. All application and installation procedures must be read and reviewed completely before proceeding with the installation. Consult the manufacturer (see the back cover), or your local manufacturer’s representative, with any problems or questions regarding this equipment.
Page 4 1.2 Included with the Appliance (continued) Items Qty Descriptions 199 MBH Propane Conversion Orifice 1 80 / 100 / 120 / 140 MBH O-Ring and Gasket Kit 1 Outdoor Temperature Sensor with anchors and screws Auto Fill Valve and Backflow Preventer Valves are NOT included (Field Supplied). SECTION 2 Product Characteristics Model Nomenclature (model number) 2.
The FT Series Heating Only, Boiler 2.2 Page 5 Specifications, 80 MBH and 100 MBH Model Name Gas Input Rate FTHW80 FTHW100 MAX 80,000 Btu/h 100,000 Btu/h MIN 16,000 Btu/h 20,000 Btu/h Installation Indoor / Wall hung type Flue System Sealed Combustion Direct / Single Vent /Sidewall Vent Vent Run 2˝(50ft*) , 3˝(100ft) Schedule 40 CPVC, PP Orifice Size Gas Supply Pressure 0.2”(5.05mm) 0.215˝ (5.45mm) LP 0.157”(4.0mm) 0.169˝ (4.3mm) NG 3.5˝ WC to 10.5˝ WC LP 8.0˝ WC to 13.
Page 6 2.2 Specifications, 125 MBH and 140 MBH Model Name Gas Input Rate FTHW120 FTHW140 MAX 120,000 Btu/h 140,000 Btu/h MIN 24,000 Btu/h 28,000 Btu/h Installation Indoor / Wall hung type Flue System Sealed Combustion Direct / Single Vent /Sidewall Vent Vent Run 2˝(50ft*) , 3˝(100ft) Schedule 40 CPVC, PP Orifice Size Gas Supply Pressure 0.213˝ (5.4mm) 0.255˝ (6.5mm) LP 0.173˝ (4.4mm) 0.191˝ (4.85mm) NG 3.5˝ WC to 10.5˝ WC LP 8.0˝ WC to 13.0˝ WC Gas type LP NG Max fire -0.
The FT Series Heating Only, Boiler 2.2 Page 7 Specifications, 199 MBH Model Name FTHW199 Gas Input Rate MAX 199,000 Btu/h MIN 19,900 Btu/h Installation Indoor / Wall hung type Flue System Sealed Combustion Direct / Single Vent / Concentric Vent Vent Run 2˝(50ft*) , 3˝(100ft) Schedule 40 CPVC, PP Orifice Size Gas Supply Pressure Manifold Pressure Power Supply NG 0.326˝ (8.3mm) LP 0.244˝ (6.2mm) NG 3.5˝ WC to 10.5˝ WC LP 8.0˝ WC to 13.0˝ WC Gas type LP NG LP NG Max fire -0.
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The FT Series Heating Only, Boiler Page 9 2.
Page 10 2.4 Names of Components FTHW 80/100 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.
The FT Series Heating Only, Boiler Page 11 2.
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The FT Series Heating Only, Boiler 2.5 Page 13 Product Flow Paths and Characteristics Water in the heating pipe is used for space heating.
Page 14 SECTION 3 3.1 Safety Regulations Safety Symbols WARNING To avoid product damage, personal injury, or even possible death, carefully read, understand, and follow all the instructions in the Installation and Operation manual before installation, operation and service the Boiler. Manufacturer cannot anticipate every circumstance that might involve a potential hazard. Therefore, all possible incidents are not included in our warnings.
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. DANGER Vapors from flammable liquids will explode and catch on fire. These will cause death or severe burns. Do not use or store flammable products such as gasoline, solvents or adhesives in the same room or area near the appliance.
Page 16 3.2 Safety Precautions and Proper Use When in Operation Before Operation 1. Check the Gas Type (NG/LP) When using or moving the unit for the first time, check if gas type matches with the gas type of the Boiler. Check whether the gas type which is supplied is NG (Natural Gas) or LP (Propane) and also check the Boiler gas type. The gas type is indicated on the rating plate on side of the Boiler. 2. Check the Power (120V 60Hz) Check that the appliance is connected properly. 3.
The FT Series Heating Only, Boiler SECTION 4 Page 17 Installation NOTE: For Cascading Installations, please refer to document 1349 ‘Cascading the FT Series Boiler’, available online. 4.1 Location and Clearances The FT must be mounted to a suitable wall by a qualified heating contractor under the guidelines of a boiler. The wall may be of concrete or wood. Suitable fasteners for concrete or wood must be used.
Page 18 4.2 4.2.2 Wall Mount Bracket 3" to Top of Unit The installation height and location 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 position to mount the Wall Mount Bracket.
The FT Series Heating Only, Boiler 4.3 Page 19 Combustion Air FT boilers must have provisions for combustion and ventilation air in accordance with the applicable requirements for Combustion Air Supply and Ventilation in the National Fuel Gas Code, ANSI Z223 1; or in Canada, the Natural Gas and Propane Installation Code, CSA B149.1. All applicable provisions of local building codes must also be adhered to.
Page 20 NOTICE The instructions for the installation of the venting system shall specify that the horizontal portions of the venting system shall be supported to prevent sagging; the methods of and intervals for support shall be specified.
The FT Series Heating Only, Boiler 4.4 Page 21 Venting, Exhaust NOTICE DO NOT COMMON VENT FT UNITS. FT units are never permitted to share a vent with Category I appliances. ___________________________________________ NOTICE For Cascading Installations, please refer to document 1349 ‘Cascading the FT Series Boiler’, available online. The flue temperature of the FT changes dramatically with changes in operating water temperature.
Page 22 4.4 Venting, Exhaust (continued) WARNING be from a certified manufacturer. 4 . Vent system components must not be mixed with alternate manufacturers certified components and/or unlisted components. 5 . The venting must be installed according to the vent manufacturers installation instructions. The unit’s vent can terminate through the roof, or through an outside wall.
The FT Series Heating Only, Boiler 4.6 4.6.1 Page 23 Locations for Vent Pipe Terminator Direct Venting Clearances U.S. Installations (see note 1) Canadian Installations (see note 2) A= Clearance above grade, veranda, porch, deck, or balcony 12 inches (30 cm) See note 6 12 inches (30 cm) See note 6 B= Clearance to window or door that may be opened Direct vent only: 12 inches (30cm); Other than Direct vent: 4 ft (1.
Page 24 4.6.2 Venting Requirements in the Commonwealth of Massachusetts In Massachusetts the following items are required if the side-wall exhaust vent termination is less than seven (7) feet above finished grade in the area of the venting, including but not limited to decks and porches. From Massachusetts Rules and regulations 248 CMR 5.08 1.
The FT Series Heating Only, Boiler NOTICE DO NOT COMMON VENT FT UNITS. FT units are never permitted to share a vent with Category I appliances. Page 25 AVIS NE PAS ÉVENT COMMUNE FT UNITÉS. FT unités ne sont jamais autorisés à partager un évent Catégorie I avec les appareils. Common Vent Test NOTE: This section does not describe a method for common venting FT units. It describes what must be done when an existing unit is removed from a common vent system.
Page 26 Air Supply and Vent Connections 4.7 4.7.1 Vent / Air Pipe Lengths Boiler model 3˝ Combustion Air / Vent Pipe 2˝ Combustion Air / Vent Pipe Max 100´ (30M) Max 50´ (15M ) FTHW (all sizes) Table 5. * Maximum Vent / Air Pipe Lengths for either 3” or 2 “ Pipes NOTE: F or each elbow, reduce the maximum allowable length • 5 feet (1.5M) for each 3-inch 90-degree elbow • 2.5 feet (0.75M) for each 3-inch 45-degree elbow • 8 feet (2.4M) for each 2-inch 90-degree elbow • 4 feet (1.
The FT Series Heating Only, Boiler 4.7.3 Page 27 Indoor Combustion Air 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. In Canada refer to CAN/CSA B-149.1 NOTE: The FT needs fresh air for safe operation and must be installed so there are provisions for adequate combustion and ventilation air.
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 12” MIN Apart 90o Elbow 12” MIN Exhaust Exhaust Screen NOTE: The Exhaust must be equal to or above the Combustion Intake while at a Minimum of 12” apart. A NOTE: Must be 12” Minimum distance above highest anticipated snow level or grade, whichever is greater (TYP).
The FT Series Heating Only, Boiler • Direct Vent - Optional Side wall Terminations Exterior Wall Concentric Vent Termination • Direct Vent - Optional Horizontal and Vertical Concentric Vent Side Wall Kit (2” or 3”) Exhaust 4. Concentric Vent Termination • Direct Vent - Optional Horizontal and Vertical Concentric Vent 4" (100mm) Exhaust 12” Minimum clearance above highest anticipated snow level or grade, 12” (30cm) Minimum Combustion Air clearance above whichever is greater.
Page 30 4.9 Gas Supply and Piping Gas piping should be supported by suitable hangers or floor stands, not the appliance. Review the following instructions before proceeding with the installation. 1. Verify that the appliance is fitted for the proper type of gas by checking the rating plate. FT will function properly at elevations up to 10,000 feet (3050 m). Refer to Section 4.12 for High Altitude Settings. 2. For minimum and maximum gas supply pressures. See Section 2.
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. Referenced from gas pipe manufacturer specifications for actual delivery capacity. The DOE standard for Natural Gas is 1100 BTU/ft 3. Contact the local gas supplier for actual BTU/ft 3 rating.
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. Contact the local gas supplier for actual BTU/ft3 rating. Inlet Pressure : 11 in. w.c / Pressure Drop : 0.5in. w.c / Specific Gravity : 1.
The FT Series Heating Only, Boiler The gas connection fitting on the unit is 3/4˝ male NPT. The supply line must be sized for the maximum output of the boiler model being installed. If there are additional gas appliances from the main supply line, you must measure sizes of the supply line according to the COMBINED total maximum BTUH draw for the appliances as if they were all operating at the same time. Measure the length of the gas supply line from the gas meter to the Boiler.
Page 34 4.9 Gas Supply and Piping (continued) Suggested Natural Gas (NG) Layout Other Applianc e Sediment Trap Suggested Propane Gas (LP) Layout Sediment Trap Other Applianc e 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”.
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 Maximum Pressure 10.5˝ WC Maximum Pressure 13.0” WC Minimum Pressure 3.5˝ WC Minimum Pressure 8.
ON OFF Page 36 OFF MBH 80 ON ON OFF OFF OFF OFF ON ON ON 100 120 140 N/A 199 ON 4.11 These Gas3 Setup and Adjustment bottom switches must be set per unit SIZE. Table B DIP Switch Settings Shown is a Model 140 with 3" Venting and usingon the FT, please refer to Steps 12 thru For the Step by step process to measure CO values 2Natural Gas Step 22 in Section 4.13 of this Installation Manual. 9. Per Table B, set DIP Switch 5 to OFF for LP Propane. 10.
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. AUTODESK � � � � � � � � � � Follow these instructions if your installation is at 2,000’ - 10,000’. AUTODESK � � � � � � � � � � AUTODESK � � � � � � � � � � 1.
Page 38 The FT Series, Heating Only, Gas Conversion Kit 4.13 Natural Gas to Propane Conversion Kit # R20773 Document 4296D AUTODESK � � � � � � � � � � AUTODESK � � � � � � � � � � AUTODESK � � � � � � � � � � The FT Series, heating only, condensing boiler is configured for Natural Gas (NG) from the factory. A Natural Gas to Propane Conversion Kit is included with every FT. The gas conversion kit will show you how to convert your FT boiler to propane gas.
The FT Series Heating Only, Boiler Page 39 The FT Series, Heating Only, Gas Conversion Kit 3. Document 4296D Using a Phillips screwdriver, remove the 4 screws on the front cover. See Figure A. GAS VALVE COMBUSTION TEST PORT GAS VALVE COMBUSTION TEST PORT BLOWER BLOWER GAS INLET PIPE GAS INLET PIPE COVER COVER Figure A ( FTHW 80/100120/140 ) 4.
Page 40 The FT Series, Heating Only, Gas Conversion Kit 4.13 Natural Gas to Propane Conversion (continued) MBH ON OFF MIN Fire Normal Operation MAX Fire Normal Operation NG Natural LP Propane 3” Vent Size 2” Vent Size ON OFF ON OFF ON ON OFF ON ON OFF OFF ON OFF OFF OFF ON ON ON 80 100 120 140 N/A 199 These 3 bottom switches must be set per unit SIZE. Shown is a Model 140 with 3" Table B DIP Switch Settings 9. 10. 11. 12.
The FT Series Heating Only, Boiler Page 41 The FT Series, Heating Only, Gas Conversion Kit CO2 value Document 4296D Propane Gas (LP) 2˝ VENT MFTHW 80/100 All sizes 120/140/175/199 (and all altitudes) Natural Gas (NG) 3˝ VENT 2˝ VENT 3˝ VENT 9.5~11% 8.5~10.5% 9~10.5 % 8~10% Table D 14. 15. 16. 17. 18. 19. 20. 21. 22. Refer to the below table. Setup your combustion analyzer and place the sensor into the combustion test port Per Table B for Max Fire, change dip switch 6 to ON and 7 to OFF.
Page 42 4.14 Plumbing Guidelines 4.14.1 E xternal Plumbing and Water Connection Guidelines - Ensure pipe material meets local codes and industry standards. - The pipe end must be clean and free of debris. - Do not apply torch heat within 12˝ of the bottom connections of the unit. - The CH supply and return connections are 1-1/4”. The system piping must be a minimum of 1-1/4”. (See Sections 1.14.4 & 4.14.5) - Isolation valves(Shutoff valve) will be used. - All piping should be insulated. 4.14.
The FT Series Heating Only, Boiler Page 43 4.14 Plumbing Guidelines ZONE 3 ZONE 3 ZONE 2 ZONE 2 ZONE 1 - 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. - 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. ZONE 1 4.14.
Page 44 ZONE 3 ZONE 2 ZONE 3 ZONE 1 4.14.3 Zoning with circulation pumps ZONE 1 ZONE 2 4.14 Plumbing Guidelines - Each heating zone of a pump based system has its own circulator pump which runs when that zone demands it. SECONDARY LOOP HEATING) - Each zone thermostat goes (SPACE to SECONDARY LOOP (SPACE HEATING) a controller which controls the pumps.
ZO ZO ZO The FT Series Heating Only, Boiler Page 45 4.14 Plumbing Guidelines SECONDARY LOOP (SPACE HEATING) 4.14.4 Indirect Water Heating - Installer isDoresponsible for all equipment and detailing required by local codes. not exceed - The minimum pipe size of CH piping should be 1 ¼˝ in diameter. 12" See Note Expansion tank (Diaphragm-type) Automatic air vent Make-Up Water Auto Fill Valve and Backflow Preventer Valves are NOT included (Field Supplied).
Page 46 ZONE 3 ZONE 2 4.14.5 M ultiple units using zones pumps and an indirect for DHW ZONE 1 4.
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. WARNING Do not operate this appliance before the pressure relief valve supplied is installed with sufficient relieving capacity in accordance with the ASME Rating Plate on the boiler.
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. to floor drain 2. to neutralizer (optional kit) 3. to laundry tub 4.
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. ELECTRICAL SHOCK HAZARD — For your safety, turn off electrical power supply at service entrance panel before making any electrical connections to avoid possible electric shock hazard.
Page 50 4.18 DIP Switches DIP switches 6 and 7 have to be set in the OFF position when the boiler is running normally. DIP sFT witches 1, 2,Heating and 3 are system and are factory set to the boiler model and size The Series, Only,switches Gas Conversion Kit Document 4296D and should not be touched.
The FT Series Heating Only, Boiler 4.
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The FT Series Heating Only, Boiler Page 53 4.
Page 54 4.21 Electrical Connections (cont) Connector #, Location, Type PIN 1 8 2 9 3 10 CN7 LWD1140-14 4 F.S 12 6 13 7 14 SELV (5V) OP.S Operating water temperature sensor SELV (5V) DH.S Exhaust temperature sensor SELV (5V) CH Return temperature sensor SELV (5V) BG.S DHW temperature sensor or Mechanical aquastat connection SELV (5V) ST.S System temperature sensor SELV (5V) SP.S CH over-heat temperature sensor SELV (5V) VCC SELV (5V) GND SELV (5V) Voltage input SELV (5V) I.
The FT Series Heating Only, Boiler Control Display and Operation SECTION 5 5.1 Page 55 Control Dial and Buttons The Control Display Status Light (constant green when operating normally) E 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 56 5.
The FT Series Heating Only, Boiler 5.3 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. It will then display the following information.
Page 58 5.4 Setting the Clock B C E A D The P-950EH Control Display does NOT have a daily timer or programmable thermostat. Setting the Clock a. Press and hold the ‘Clock button’ for about 5 seconds. Set the ‘Year’ by turning the dial E. And then, press the dial E to Save. b. Set the ‘MON’ (Month) by turning the dial E to the desired month number. Then press the dial E to Save. c. Set the ‘DATE’ (1-31, Day of the Month) by turning the dial E. Then press the dial E to Save. d.
The FT Series Heating Only, Boiler 5.5 Page 59 CH Set Point Change Mode CH Set point Change Mode B A C E D To c hange CH Setpoint, press the C button. The CH Icon and current CH Setpoint will flash. Turn the E dial clockwise to increase, and counterclockwise to decrease CH setpoint, until desired temperature is reached. Press E dial to save changes and to Exit.
Page 60 5.6 Status Display Mode To change any Status Parameter, to get into the Status Display Mode. Press and Hold Button B Rotate Dial E until you find the Parameter that you wish to change. Tap Dial E to enter that Parameter. Adjust to the setting that you require and then press (tap) Dial E to save and to Exit. B A Digital Display NOTE: For Cascading Installations, please refer to document 1349 ‘Cascading the FT Series Boiler’, available online.
The FT Series Heating Only, Boiler 5.7 Page 61 Installer Mode These changes are to be made only by a qualified technician. B A C E D 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. Rotate Dial E until you find the Installer Parameter (full list on facing page) that you wish to change. Tap Dial E to enter that Parameter.
Page 62 5.7 Installer Mode (continued) Index Numbers Parameter Description 7: cL Minimum Supply temperature Sets the design supply water temperature based on the maximum outdoor design temperature. Minimum supply temperature must be set at least 9°F below the maximum supply temperature.
The FT Series Heating Only, Boiler Index Numbers Parameter Page 63 Description 27: Cn Cascade Number Cascade Number Range: 0 (Master), 1(slave 1), …., 19(slave 19) “29: CP” has to be set with the total number of units in the cascade before “28: Cn” can be set.
Page 64 5.8 Storage Mode Storage Mode / Indirect Water Heater B A C E D To change Storage Mode Temp, First turn OFF the power to the Control Display. Then Press and Hold Button B to get into the Installer Mode. Rota te Dial E until you find 25:St Tap Dial E to enter Storage Mode. Storage Mode indicates that the boiler is heating the water held in an indirect water heater. When Storage Mode is active, the display will appear as shown.
The FT Series Heating Only, Boiler 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 4:OH “high outdoor temperature setpoint”, the control point setting is adjusted to 7:cL “low boiler temperature setpoint”.
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.
The FT Series Heating Only, Boiler SECTION 6 6.1 Error Code Page 67 Error Codes Error Code Table Error Code Description Possible Remedies Recover methods Flame has Extinguished 8 (Eight) Times 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" to 10.5” WC (Natural Gas) and 8" to 13" WC (Propane). 2. Check gas valve wire. Ensure connection is secure. 3. Check flame detection sensor.
Page 68 Error Code Table (continued) Error Code Error Code Description Possible Remedies Recover methods Venting (Exhaust) Sensor Open or Short This Error Code will go away when exhaust temperature decreases. If Error happens again: 1. Check Venting (exhaust) temperature sensor. Ensure connections are secure. 2. Check sensor resistance. If resistance is zero, replace the sensor. 3. Check vent pipes for blockage. 4.
The FT Series Heating Only, Boiler Page 69 Recover methods Error Code Error Code Description 70 Register, Ram, Rom, I/O Port, AD Abnormal, Important EPROM Data or Safe Data Abnormal This Error Code will go away when the condition is remedied. If Error happens again: 1. Turn power OFF and ON at the main power switch internal to the appliance. 2. If the problem persists, replace the main control.
Page 70 6.2 Fault Tree Analysis 1.
The FT Series Heating Only, Boiler Page 71 6.2 Fault Tree Analysis (continued) 2. Gas Detection 3.
Page 72 SECTION 7 7.1 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 when the hot water is opened. Make sure that there is water supplied to the unit. The unit activates once the inlet water flow is over 0 gpm.
The FT Series Heating Only, Boiler 7.2 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. Display Nothing shown on display Control Display and blower running at full speed. Nothing is shown in display Control Display and no other boiler components are operating. Nothing is shown on Control Display, but boiler is operating.
Page 74 7.2 Suggested Corrective Actions (continued) Fault TEMPERATURE SENSOR FLAME FAULT Condition Occurs when a temperature sensor has electrically shorted (SHORT) or has become disconnected (OPEN). Occurs when flame is detected when there should be no flame. Diagnostic Reset using manual reset screen on Control Display.
The FT Series Heating Only, Boiler SECTION 8 8.1 Page 75 Maintenance Annual startup & general maintenance Regular Maintenance - This Manual should be placed in a safe and dry location near the Boiler. Maintenance instructions should be carried out by the following guidelines. Maintenance procedures [ Daily ] - Check that the boiler casing is closed. Check if there is any problem with the Boiler casing and the two upper and lower screws are tightened well.
Page 76 8.1 Annual startup & general maintenance (continued) - Check the air vent If the air vent valve seems to work freely without leaking, replace cap “A” by twisting all the way on. Loosen cap “A” one turn to allow vent to operate. If vent does not operate correctly, replace the vent. lever completely, the valve or discharge line may be blocked. Shut down the Boiler immediately. Call your qualified service technician to inspect the boiler and system.
The FT Series Heating Only, Boiler Page 77 4. Pour the cleaning solution into the bucket. Place the drain hose (D1) and the hose (D2) to the pump inlet into the cleaning solution. 5. Open service valves (V3 & V4) on the hot water outlet and cold water inlet lines. 6. Turn on the circulation pump (Operate the pump and allow the cleaning solution to circulate through the boiler for at least 1 hour at a rate of 4 gallons per minute.) D1 D2 7.
Page 78 Freeze Protection (continued) WARNING Do NOT use automotive antifreeze or ethylene glycol. Use only inhibited propylene glycol solutions which are specially formulated for hydronic systems. Ethylene glycol is toxic and can attack gaskets, seals, and metallic components used in hydronic systems. A correct glycol concentration and inhibitor level is critical. Some items to consider are • Consider the effects of reduced heat transfer and an increase in head pressure against the system circulator.
The FT Series Heating Only, Boiler 9.2 Page 79 Final Check Lists Final check : Installation Conditions.
Page 80 SECTION 10 Parts Casing _ Feature Casing _ List Casing Parts (80 MBH to 140 MBH) 10.1 Parts Lists and Illustrations (80-140) No. O-7 Description Part Number Note s No.
re The FT Series Heating Only, Boiler Page 81
Heat Exchanger _ Page 82 Heat Exchanger Parts (80 MBH to 140 MBH) No.
The FT Series Heating Only, Boiler at Exchanger _ Feature Page 83
Page 84 Fan & Gas Valve _ Blower Parts (80 MBH to 140 MBH) No. Description Part Number Notes 60 Gas valve Ass 51 Damper packing FT1955 60-1 Gas valve outle 51N Damper packing FT1941 60-2 Gas valve O-R 52 Damper body FT1915 60-3 Gas valve 52N Damper body FT1942 60-4 Gas valve inlet 53 Fan rubber packing (1.
an & Gas Valve _ The FT Series Heating Only, Boiler Feature Before January of 2018 & Gas Valve _ _ Feature Feature After January of 2018 Page 85
Casing _ Page 86 Casing _ List Casing Parts (199 MBH) 10.2 Parts Lists and Illustrations (199) No.
The FT Series Heating Only, Boiler Page 87
Page 88 Heat Exchanger Parts Heat Exchanger _ (199 MBH) No. Description Part Number Notes List No.
The FT Series Heating Only, Boiler Heat Exchanger _ Page 89 Feature
Fan & Gas Valve _ Page 90 Blower Parts (199 MBH) No. Description Part Number 50 Fan guide FT1769 51 Damper packing FT1770 52 Damper body FT1915 53 Fan rubber packing (1.
The FT Series Heating Only, Boiler Gas Valve _ Feature Page 91
Notes: For Product and Service VIDEOS H2375000H Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement. Customer Service and Product Support: 800.900.9276 • Fax 800.559.