Installation and Operation Instructions Document 1483 Installation and Operation Instructions for THE FT SERIES Wall-Mounted, Modulating Gas, Condensing, Heating Only, Boiler Model FTHW 100,000 BTU/h 140,000 BTU/h 199,000 BTU/h • 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.
TABLE OF CONTENTS SECTION 1 Introduction 1.1 1.2 About this Installation Manual........................... 3 Included in the Box............................................ 4 4.14.7 4.15 Multiple units using zones pumps and an indirect for DHW................................. 46 Pressure Relief Valve...................................... 47 SECTION 2 Product Characteristics 4.16 Disposal of Condensate....................... 48 4.17 4.18 4.19 4.20 4.21 Electrical Wiring Connections..................
SECTION 1 1.1 TOP VIEW Introduction For details on Combustion Air and Venting, See page 19 through to page 27 bout this A Installation Manual All installations must be made in accordance with 1) American National Standard Z223.1/ NFPA54-Latest Edition “National Fuel Gas Code” or 2) CSA B149.1 “Natural Gas and Propane Installation Code” and with the requirement of the local utility or other authorities having jurisdiction.
Page 4 1.
Page 5 The FT Series Heating Only, Boiler 1.2 Included in the Box (continued) Items Descriptions Qty Propane Conversion Orifice 1 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 2.
Page 6 2.2 Specifications, 100 MBH Model Name FTHW100 Gas Input Rate MAX 100,000 Btu/h MIN 20,000 Btu/h Installation Indoor / Wall hung type Flue System Sealed Combustion Direct / Single Vent /Sidewall Vent Vent Run / Vent Material 2˝(50ft), 3˝(100ft) Schedule 40 CPVC, PP, PVC Orifice Size Gas Supply Pressure 0.181” (4.6 mm) LP 0.142” (3.6 mm) NG 3.5˝ WC to 10.5˝ WC LP 8.0˝ WC to 13.0˝ WC Gas type LP NG Max fire -0.075” WC (+/- 0.01) -0.070” WC (+/- 0.01) Min fire 0.
Page 7 The FT Series Heating Only, Boiler 2.2 Specifications, 140 MBH Model Name FTHW140 Gas Input Rate MAX 140,000 Btu/h MIN 14,000 Btu/h Installation Indoor / Wall hung type Flue System Sealed Combustion Direct / Single Vent /Sidewall Vent Vent Run / Vent Material 2˝(50ft), 3˝(100ft) Schedule 40 CPVC, PP, PVC Orifice Size Gas Supply Pressure 0.244” (6.2 mm) LP 0.185” (4.7 mm) NG 3.5˝ WC to 10.5˝ WC LP 8.0˝ WC to 13.0˝ WC Gas type LP NG Max fire -0.130” WC (+/- 0.01) -0.
Page 8 2.2 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 / Vent Material 2˝(50ft), 3˝(100ft) Schedule 40 CPVC, PP, PVC Orifice Size Gas Supply Pressure Manifold Pressure Power Supply NG 0.326˝ (8.3mm) LP 0.250” (6.35 mm) NG 3.5˝ WC to 10.5˝ WC LP 8.0˝ WC to 13.0˝ WC Gas type LP NG Max fire -0.169” WC (+/- 0.01) -0.
Page 9 The FT Series Heating Only, Boiler 2.3 Dimensions FTHW 100 / 140 Heating only boiler 11 1/2” 2 3/4” 5 3/4” BOTTOM VIEW E B TOP VIEW F C D 3 1/2” A 10 3/8” 15 3/8” 10 3/4” 2.0" 5 3/4” 3 7/8” 17 3/8” 29.
Page 10 2.3 Dimensions FTHW 199 Heating only boiler 13 7/8” BOTTOM VIEW E TOP VIEW 4 1/2” B A 11 5/8” 16 7/8” 11 3/4” 2 1/4” 2.0" 7 1/4” 5 5/8” 3 3/4” 19 3/4” F D C 32.
Page 11 The FT Series Heating Only, Boiler 2.4 Names of Components FTHW 100 / 140 Heating only boiler 4 SCREWS 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.
Page 12 2.
Page 13 The FT Series Heating Only, Boiler 2.5 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.
Page 15 The FT Series Heating Only, Boiler 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 3. Open windows for ventilation. 4. Call a qualified service technician for immediate repair. 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.
Page 17 The FT Series Heating Only, Boiler SECTION 4 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 Wall Mount Bracket 4.2.1 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.
Page 19 The FT Series Heating Only, Boiler 4.3 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.
Page 21 The FT Series Heating Only, Boiler 4.4 Venting, Exhaust NOTICE DO NOT COMMON VENT FT UNITS. FT units are never permitted to share a vent with Category I appliances. AVIS NE PAS ÉVENT COMMUNE FT UNITÉS. FT unités ne sont jamais autorisés à partager un évent Catégorie I avec les appareils. NOTICE For Cascading Installations, please refer to document 1349 ‘Cascading the FT Series Boiler’, available online.
Page 22 4.4 3. Venting, Exhaust (continued) All components used in the vent system must 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.
Page 23 The FT Series Heating Only, Boiler 4.6 Locations for Vent Pipe Terminator Canadian Installations1 U.S.
Page 24 4.6.1 enting Requirements in the V 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.
Page 25 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. 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 4.7 4.7.1 Air Supply and Vent Connections Vent / Air Pipe Lengths Use this table for Doc. 1483 MFTHW 100/140/199 NG & LP Deductions per 90° Elbow Deductions per 45° Elbow Max. # of Total Elbows on Air Intake & Exhaust Vent 2" Combustion Air & Vent Pipe Min. Min. Vent Max. Combustion Combustion Air Pipe Air & Vent Pipe Pipe 3 FT (1 M) 50 FT (15 M) 0 FT* (0 M) 8 FT (2.4 M) 4 FT (1.2 M) 3" Combustion Air & Vent Pipe Min. Min. Vent Max.
Page 27 The FT Series Heating Only, Boiler 4.7.3 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: T he 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).
Page 29 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 NOTE: Concentric Vent Terminations cannot be less than 12” apart in multi-unit installations or in cascading operations. Consult local codes and the manufacturer’s guidelines for acceptable separation distances.
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.
Page 31 The FT Series Heating Only, Boiler 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.
Page 33 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 NOTE: Total gas supply capacity must not be less than the total demand capacity of the connected appliances. Other Applianc es Gas Regulator (Supply Press 12˝ ) Gas Meter Sediment Trap Suggested Propane Gas (LP) Layout NOTE: Total gas supply capacity must not be less than the total demand capacity of the connected appliances.
Page 35 The FT Series Heating Only, Boiler 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.
Page 36 NG Natural LP Propane 3” Vent Size 2” Vent Size 4.11 Gas Setup and Adjustment For the Step by step process to measure CO2 values on the FT, please refer to Steps 12 thru MBH 140 199 Step 22 in 100 Section 4.13 of this Installation Manual. These 3 bottom switches must be set per unit SIZE. Table B DIP Switch Settings Shown is a Model 140 with 3" Venting and using Natural Gas WARNING 9. Per Table B, set DIP Switch 5 to OFF for LP Propane. Standard Factory Setting is for MAX Fire. 9.
Page 37 The FT Series Heating Only, Boiler 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. Follow these instructions if your installation is at 2,000’ - 10,000’. 1.
Page 38 The FT Series, Heating Only, Gas Conversion Kit37page 4.13 Natural Gas to Propane Conversion Kit # R20773 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. If your FT does not have the bag containing the conversion kit, a replacement kit can be obtained.
Page 39 The FT Series Heating Only, Boiler The FT Series, Heating Only, Gas Conversion Kit 3. Document 4387 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 100 / 140 ) ( FTHW 199 ) 4. Locate the Gas Inlet Pipe at the top of the unit as is shown in Figure A, and loosen the Brass Fittings at both ends 5.
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 100 140 199 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. Document 4387 Venting and using Natural Gas Per Table B, set DIP Switch 5 to OFF for LP Propane.
Page 41 The FT Series Heating Only, Boiler The FT Series, Heating Only, Gas Conversion Kit CO2 value Document 4387 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 4.14.4 & 4.14.5) - Isolation valves (Shutoff valve) will be used. - All piping should be insulated. 4.14.
Page 43 The FT Series Heating Only, Boiler ZONE 3 ZONE 3 ZONE 3 ZONE 2 ZONE 2 ZONE 1 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.
Do not exceed 12" See Note 1" or 1-1/4" min piping depending upon boiler size.
ZO ZO ZO (SPACE HEATING) Page 45 The FT Series Heating Only, Boiler Do not exceed 12" SECONDARY LOOP See (SPACE HEATING) Note 4.14.6 Indirect Water Heating Make-Up Water - 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 sion tank ragm-type) Make-Up Water 1" or 1-1/4" min piping depending upon boiler size.
Page 46 CASCADE SYSTEM SENSOR ZONE 3 4.14.7 M ultiple units using zones pumps and an indirect for DHW ZONE 2 ZONE 1 4.
Page 47 The FT Series Heating Only, Boiler 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. This boiler is provided with 30 psi safety relief valve that complies with the ANSI/ASME Boiler and Pressure Vessel Code, Section IV (“Heating Boilers).
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 3 disposal methods must be followed 1. to floor drain 2. to neutralizer (optional kit) 3.
Page 49 The FT Series Heating Only, Boiler 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 4.17 Electrical Wiring Connections (continued) Low Voltage Terminals Line Voltage Terminals L N G CH PUMP L N G DHW PUMP LWCO CASCADE SYSTEM SENSOR DHW TEMP R 0-10V W (+) INPUT (-) SENSOR TT O/S Outdoor Sensor DHW Temp.
Page 51 The FT Series Heating Only, Boiler 4.
Page 52 4.
Page 53 The FT Series Heating Only, Boiler 4.
Page 54 4.21 Electrical Connections (continued) Connector #, Location, Type PIN 1 8 2 9 3 10 CN7 LWD1140-14 4 11 5 12 6 13 7 14 F.S 2 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.
Page 55 The FT Series Heating Only, Boiler 55page SECTION 5 5.1 Control Display and Operation Control Dial and Buttons B C E A D Status Light (constant green when operating normally) The Control Display 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 5.
Page 57 The FT Series Heating Only, Boiler 5.3 Operating Mode 57page 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.
57page Page 58 5.4 Setting the Clock B E A C 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.
The FT Series Heating Only, Boiler 5.5 57page Page 59 CH Set Point Change Mode CH Set point Change Mode B E A C D To c hange CH Set point, press the C button. The CH Icon and current CH Set point will flash. Turn the E dial clockwise to increase, and counterclockwise to decrease CH set point, until desired temperature is reached. Press E dial to save changes and to Exit.
Page 60 5.6 Status Display Mode To view any Status Parameter, Press and Hold Button B to get into the Status Display Mode. 60page Rotate Dial E until you find the Parameter that you wish to view. Tap Dial E to enter that Parameter as required. Dial E to save and to exit the Status Information Menu. To go back to the Operation Screen Press button B. B C E A Digital Display NOTE: For Cascading Installations, please refer to document 1349 ‘Cascading the FT Series Boiler’, available online.
Page 61 The FT Series Heating Only, Boiler 5.7 Installer Mode 61page These changes are to be made only by a qualified technician. WARNING B E A For low temperature heating applications, adjust P6 to desired value. For cascade applications, adjust P31 to desired water temperature. Call Technical services for assistance in changing settings. C D To c hange any of the Installer Parameters, Start by turning OFF the Power to the Display Control.
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.
Page 63 The FT Series Heating Only, Boiler Index Numbers Parameter 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 64page Storage Mode / Indirect Water Heater B E A C 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.
Page 65 The FT Series Heating Only, Boiler 5.9 Outdoor Reset Adjustment Outdoor Reset varies the control set point 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 set point”, the control point setting is adjusted to 7:cL “low boiler temperature set point”.
Page 66 66page 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 The FT Series Heating Only, Boiler SECTION 6 6.1 Error Code Error Codes Error Code Table Error Code Description Possible Remedies 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. If the problem persists, contact technical support.
Page 69 The FT Series Heating Only, Boiler 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, contact technical support. Soft Lock 72 Flame Signal Detected before Ignition This Error Code will go away when the condition is remedied.
Page 70 6.2 6.2.1 Fault Tree Analysis 1.
Page 71 The FT Series Heating Only, Boiler 6.2.2 2. Gas Detection 6.2.
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. Burner does not ignite when the hot water is opened. 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. Make sure that there is water supplied to the unit. The unit activates once the inlet water flow is over 0 gpm.
Page 73 The FT Series Heating Only, Boiler 7.2 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.
Page 75 The FT Series Heating Only, Boiler SECTION 8 8.1 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. If water does not flow from the valve even though you have lifted the lever completely, the valve or discharge line may be blocked. Shut down the Boiler immediately.
Page 77 The FT Series Heating Only, Boiler 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. O pen 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 7.
Page 78 8.3 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.
Page 79 The FT Series Heating Only, Boiler 9.2 Final Check Lists Final check : Installation Conditions.
Page 80 SECTION 10 Parts 10.
Page 81 The FT Series Heating Only, Boiler Casing Parts 100 MBH No.
Page 82 Heat Exchanger Assembly 100 MBH
Page 83 The FT Series Heating Only, Boiler Heat Exchanger Parts Heat Exchanger & Tank (New) 100 MBH No.
Page 84 Blower Assembly 100 MBH
Page 85 The FT Series Heating Only, Boiler Fan & Gas Valve (New) Blower Parts 100 MBH No. Description 50 50-1 50-2 50-3 50-4 51 51-1 51-2 51-3 51-4 51-5 52 52-1 52-2 52-3 52-4 Fan guide assembly Fan guide Damper body assembly Fan rubber packing #2 Fan rubber packing(1.6t) Fan assembly Fan Fan sealing O-Ring AGM Venturi (Ø18) AGM O-Ring AGM Body Air intake hose (100K) assembly Air intake hose (100K) Stainless band (Ø100) Nylon Barb Y Fitting Stainless band (Ø89) Nozzle NG (Ø4.6) Nozzle LP (Ø3.
Page 86 10.
Page 87 The FT Series Heating Only, Boiler Casing (New) Casing Parts 140 MBH No.
Page 88 Heat Exchanger Assembly 140 MBH
Page 89 The FT Series Heating Only, Boiler Heat Exchanger & Tank (New) Heat Exchanger Parts 140 MBH No.
Page 90 Blower Assembly 140 MBH
Page 91 The FT Series Heating Only, Boiler Fan & GasParts Valve (New) Blower 140 MBH No. Description 50 50-1 50-2 50-3 50-4 51 51-1 51-2 51-3 51-4 51-5 52 52-1 52-2 52-3 52-4 Fan guide assembly Fan guide Damper body assembly Fan rubber packing #2 Fan rubber packing (1.6t) Fan assembly Fan Fan sealing O-Ring AGM Venturi (Ø23) AGM O-Ring AGM Body Air intake hose (140K) assembly Air intake hose (140K) Stainless band (Ø100) Nylon Barb Y Fitting Stainless band (Ø89) Nozzle NG (Ø6.2) Nozzle LP (Ø4.
Page 92 10.
Page 93 The FT Series Heating Only, Boiler Casing Parts Casing (New) 199 MBH No.
Page 94 Heat Exchanger Assembly (199 MBH)
Page 95 The FT Series Heating Only, Boiler Heat Exchanger & Tank (New) Heat Exchanger Parts (199 MBH) No.
Page 96 Blower Assembly (199 MBH)
Page 97 The FT Series Heating Only, Boiler Fan & GasParts Valve (New) Blower (199 MBH) No.
Page 98 Notes:
The FT Series Heating Only, Boiler Notes: Page 99
The FT Series Heating Only, Boiler Notes: H2412200- 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.