Installation and Operation Instructions Document 1487 Installation and Operation Instructions for THE FT SERIES Wall-Mounted, Modulating Gas, Condensing, Combination Boiler Model FTCW 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.
Page 2 TABLE OF CONTENTS SECTION 1 Introduction 1.1 1.2 About this Installation Manual...............................3 Included in the Box...............................................4 SECTION 2 Product Characteristics 2.1 2.2 2.3 2.4 2.5 2.5.1 2.5.2 Model Nomenclature (model number)..................5 Specifications.......................................................6 Dimensions . ........................................................8 Names of Components.......................................
43 TOP VIEW Page 3 The FT Series Wall Mounted, Combination Boiler SECTION 1 1.1 Introduction For details on Combustion Air and Venting, See page 18 through to page 26 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 Wall Mounted, Combination Boiler 1.2 Included in the Box (continued) Items Descriptions Qty 3” Mesh Screens 2 O-Ring and Gasket Kit 1 Outdoor Sensor with screws and anchors 1 FTCW140 FTCW199 * 4.5 GPM Flow Restrictor (dark blue) ** 1 Propane Conversion Orifice 1 his additional 4.5 GPM (dark blue) is provided with the FTCW140 for use in higher inlet water * Ttemperature and/or well water applications to reduce internal pressure drop. A 3.
Page 6 2.2 Specifications, 140 Model Name FTCW140 Gas Input Rate Hot Water Capacity MAX 140,000 Btu/h MIN 14,000 Btu/h 35°F Rise 7.1 GPM 45°F Rise 5.5 GPM 77°F Rise 3.2 GPM 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 NG 0.224” (6.2 mm) Orifice Size Gas Supply Pressure Manifold Pressure LP 0.185” (4.7 mm) NG 3.5˝ WC to 10.5˝ WC LP 8.
Page 7 The FT Series Wall Mounted, Combination Boiler 2.2 Specifications, 199 Model Name FTCW199 Gas Input Rate Hot Water Capacity MAX 199,000 Btu/h MIN 19,900 Btu/h 35°F Rise 9.88 GPM 45°F Rise 7.7 GPM 77°F Rise 4.8 GPM Installation Indoor / Wall hung type Flue System Sealed Combustion Direct / Single Vent / Concentric Vent Vent Run 2˝(50ft), 3˝(100ft) Schedule 40 CPVC, PP, PVC Orifice Size Gas Supply Pressure NG 0.326” (8.3 mm) LP 0.250” (6.35 mm) NG 3.5˝ WC to 10.
Page 8 Dimensions FTCW140 17 14 3/8” 7/8” 10 3/4” 8 7/8” 6 3/4” 2 3/8” 4 3/8” 5 3/4” BOTTOM VIEW 10 3/4” 5 3/4” 3 7/8” 12 5/8” G 6 3/4” C 4 3/8” B A TOP VIEW D E H F 10 3/4” 5.0" 15 1/2” 2 3/4” FRONT VIEW 29.0" 2.
Page 9 The FT Series Wall Mounted, Combination Boiler 2.3 Dimensions FTCW199 3 3/4” 19 3/4” 15.0" 10 3/4” 10 5/8” 9 1/4” 3 1/4” 21/2” 16 5/8” 5 7/8” 12 1/2” 7.0" C 5 3/8” TOP VIEW D E H F 6 3/8” A 7 5/8” B G 10 5/8” 16 7/8” BOTTOM VIEW 4.0" 32.
Page 10 2.
Page 11 The FT Series Wall Mounted, Combination Boiler 2.
Page 12 2.5 Product Flow Paths and Characteristics 2.5.1 Central Heating flow. Combination Boiler Heating Mode. Water in the heating pipe is used for space heating. FTCW140 Note: The model 140 is shown in this illustration. The model 199 is identical in terms of flow path characteristics. Combustion Air CH SupplyCH Return CH Supply CH Return Vent 2.5.2 FTCW140 FTCW omestic Hot Water flow. Combination Boiler D Domestic Hot Water Mode.
Page 13 The FT Series Wall Mounted, Combination Boiler 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 14 3.2 Safety Precautions and Proper Use 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 15 The FT Series Wall Mounted, Combination Boiler 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.
Page 16 SECTION 4 4.1 Installation Location and Clearances WARNING 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. Failure to wall mount this boiler using correct fasteners will affect the performance and life expectancy of the boiler and will void the warranty.
Page 17 The FT Series Wall Mounted, Combination Boiler 4.2 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.
Page 18 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. A FT unit can take combustion air from the space in which it is installed, or the combustion air can be ducted directly to the unit.
Page 19 The FT Series Wall Mounted, Combination Boiler 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 20 4.4 Venting (Exhaust) WARNING 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. The flue temperature of the FT changes dramatically with changes in operating water temperature. Therefore, it is necessary to assess the application of the boiler to determine the required certified vent class.
Page 21 The FT Series Wall Mounted, Combination Boiler be from a certified manufacturer. WARNING 4 . Vent system components must not be mixed with alternate manufacturers certified components and/or unlisted components. Failure to vent this Boiler in accordance with these instructions could cause a fire, resulting in severe property damage, personal injury or death. Do not interchange vent systems or materials unless it is specified.
Page 22 4.6 Locations for Vent Pipe Terminator Canadian Installations1 U.S.
The FT Series Wall Mounted, Combination Boiler 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 24 4.7 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. NOTICE At the time of removal of an existing boiler, the following steps shall be followed with each appliance remaining connected to the common venting system placed in operation, while the other appliances remaining connected to the common venting system are not in operation. 1.
**When using 2" Combustion Air & Vent pipe, Propane Models are limited to 25 equivalent feet (7.5 M) of vent and 25 equivalent feet (7.5 M) of combus Page 25 The FT Series Wall Mounted, Combination Boiler 4.8 4.8.1 Air Supply and Vent Connections Vent / Air Pipe Lengths Use this table for Doc. 1487 MFTCW 140/199 NG & LP Deductions per 90° Elbow Deductions per 45° Elbow Max. # of Total Elbows on Air Intake & Exhaust Vent Table 5. 2" Combustion Air & Vent Pipe Min. Min. Vent Max.
Page 26 4.8.2 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 27 The FT Series Wall Mounted, Combination Boiler Horizontal Vent Termination 4.9 Vent / Air Pipe Termination (continued) • 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 28 • 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”) 12” Minimum clearance above highest anticipated snow level or grade, Exterior Wall whichever is greater. 12” Minimum clearance above highest anticipated Kit snow Side levelWall or grade, (2” or 3”) whichever is greater. 4.
Page 29 The FT Series Wall Mounted, Combination Boiler 4.10 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.
Page 30 4.10 Gas Supply and Piping (cont) he gas connection fitting is, T 3/4” male NPT on FTCW140 models 3/4” male NPT on FTCW199 models The supply line must be sized for the maximum output of the combination 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.
Page 31 The FT Series Wall Mounted, Combination Boiler 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˝ ) Sediment Trap Gas Meter Suggested Propane Gas (LP) Layout NOTE: Total gas supply capacity must not be less than the total demand capacity of the connected appliances.
Page 32 4.11 Gas Supply Pressure Refer to the illustration. Offset Adjustment. Do Not Adjust without using a combustion analyzer to verify adjustment. Adjust ONLY when in MIN Fire and when using a combustion analyser. See Section 4.12 for step by step details. Gas Outlet / Manifold Pressure Port Inlet Gas Pressure Port FTCW140 FTCW199 Gas Outlet / Manifold Pressure Port Inlet Gas Pressure Port Offset Adjustment. Do Not Adjust without using a combustion analyser to verify adjustment.
Page 33 The FT Series Wall Mounted, Combination Boiler 4.12 Adjusting Combustion 1. Using a Phillips screwdriver, remove the 4 screws on the front cover and remove cover. 10. For MIN Fire, change dip switch 6 to OFF and 7 to ON. The unit will cycle down to MIN Fire. 2. Turn ON the GAS and WATER supply to the FT. 11. WAIT for your combustion analyser to stabilize. Then check the CO2 measurement for MIN fire. Refer to Table 10 for acceptable MIN fire combustion readings 3. Turn ON the FT. 4.
bility Page 34 Adjusting Combustion (continued) Manifold pressure FTCW140 MAX FIRE MIN FIRE NG' type combustibility 2''/3'' VENT ‐0.130''WC 0.004''WC LP' type combustibility 2''/3'' VENT ‐0.100''WC 0.002''WC NG' type combustibility LP' combustibility Manifold pressure FTCW199 2" VENT MAX FIRE ‐0.129" WC MIN FIRE ‐0.015" WC 3" VENT 2" VENT 3" VENT ‐0.314 WC ‐0.169" WC ‐0.173" WC ‐0.015" WC ‐0.015" WC ‐0.015" WC Table 11. Manifold Pressures 4.13 High Altitude Installations.
Page 35 The FT Series Wall Mounted, Combination Boiler The FT Series, Wall Combi, Gas Conversion Kit 4.14 Natural Gas to Propane Conversion Document 4388 37page Kit # RXXXXX The FT Series, wall combi, 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.
Page 36 4.
Page 37 The FT Series Wall Mounted, Combination Boiler The FT Series, Wall Combi, Gas Conversion Kit Document 4388 4.14 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 140 199 Table B DIP Switch Settings Shown is a Model 140 with 3" Venting and using Natural Gas Figure D 7. Install the new LP (propane) nozzle or orifice. Re-use the packing from previous. 8.
Page 38 The FT Series, Wall Combi, Gas Conversion Kit Document 4388 4.14 Natural Gas to Propane Conversion (continued) NOTE: Installer is required to verify combustion settings as part of the installation process. CO should not exceed 200 ppm. Natural Gas (NG) CO2 value FTCW (ALL Sizes) ( and all altitudes) 2˝ VENT Propane Gas (LP) 3˝ VENT 2˝ VENT 3˝ VENT MAX FIRE 8.5 - 10.5% 9.5 - 11% MIN FIRE 8 - 10% 9 - 10.
Page 39 The FT Series Wall Mounted, Combination Boiler 4.15 Plumbing Guidelines 4.15.1 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 DHW inlet and outlet connections are 3/4”. The CH supply and return connections are 1”. The system piping must be a min. of 1-1/4” (see Sections 4.15.4 & 4.15.
Page 40 Plumbing Guidelines (continued) Differential Pressure By-Pass Expansion tank Expansion tank (Diaphragm-type) 11/4” 4” Min 11/ Min Piping Piping Check valve Drain valve PRIMARY LOOP (SPACE HEATING) Air separator ZONE 3 ZONE 3 ZONE 2 ZONE 2 Make-Up Water Make-Up Water DHW INLET DHW INLET PRIMARY LOOP (SPACE HEATING) Automatic air vent Circulation pump P TO DRAIN P P Do not exceed Do not 12" exceed See 12" Note See Note TO DRAIN Auto Fill Valve and Backflow Preventer Valves are
Page 41 ZONE 3 ZONE 2 ZONE 3 ZONE 3 - In a pump based system, each heating zone of has its own circulator pump which runs when the zone demands. - Each zone thermostat goes to a controller which controls the pumps. SECONDARY LOOP ZONE 2 ZONE 2 ZONE 1 ZONE 1 4.15.
Page 42 4.16 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 43 The FT Series Wall Mounted, Combination Boiler 4.17 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 44 4.18 DHW Flow Restrictor Flow Restrictors are factory installed. Rated at 3.2 GPM for the model 140 and 7.0 GPM for the model 199, both of these factory installed restrictors are white in color. For the 140, an additional flow restrictor, rated at 4.5 GPM, is blue in color and is packaged with the Product Accessories. See Section 1. If 3.
Page 45 The FT Series Wall Mounted, Combination Boiler 4.
Page 46 4.19 Electrical Wiring Connections (continued) Line Voltage Terminals L N G MAIN POWER Low Voltage Terminals L N G CH/BOILER PUMP LWCO 0-10V INPUT TT Low Water Cutoff Outdoor Sensor (Factory Jumper Installed) 120V/15A Service (18 Gauge Wire) External Circulator Pump (14 Gauge Wire) O/S (14 Gauge Wire) Thermostat or Endswitch (18 Gauge Wire) The FT Series, Wall Combi, Gas Conversion Kit 4.
The FT Series Wall Mounted, Combination Boiler 4.
Page 48 4.
Page 49 The FT Series Wall Mounted, Combination Boiler 4.
Page 50 Electrical Connections , (table) (continued) Connector #, Location, Type Description HT SELV F.S Flame Detect Sensor SELV (5V) OP.S Operating water temperature sensor SELV (5V) DH.S DHW temperature sensor SELV (5V) I.S Return temperature sensor SELV (5V) BG.S Venting (Exhaust) temperature sensor SELV (5V) ST.S Not Used SELV (5V) SP.
Page 51 The FT Series Wall Mounted, Combination Boiler 53page SECTION 5 Control Display and Operation 5.1 Control Dial and Buttons B C E A Status Light (constant green when operating normally) D 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 52 5.
Page 53 The FT Series Wall Mounted, Combination Boiler 5.3 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 54 5.
The FT Series Wall Mounted, Combination Boiler 5.5 Page 55 57page DHW Set Point Change Mode B DHW Set Point Change Modes The display shows the following information when changing water heating temperature set points. C E A B Changing between Celsius and Fahrenheit D C E A When the button D is pressed (for more than 5 seconds), temperature unit will toggle between °C and °F.
Page 56 5.6 58page 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.
59page Page 57 The FT Series Wall Mounted, Combination Boiler 5.8 Installer Parameters WARNING B A E C D For low temperature heating applications, adjust P16 and possibly P17 to desired value(s). Proper high temperature protection might be required when the combination boiler transitions from DHW production to low temperature heating. Contact Technical Services for assistance in changing settings. These changes are to be made only by a qualified technician.
Page 58 5.
Page 59 The FT Series Wall Mounted, Combination 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 6:OH “high outdoor temperature set point”, the control point setting is adjusted to 17:cL “low boiler temperature set point”.
Page 60 5.11 Error Mode 62page B A Indicate E C Flashing D Example 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.
The FT Series Wall Mounted, Combination Boiler SECTION 6 Error Codes 6.1 Page 61 Error Code Tables Error Error Code DescripPossible Remedies Code tion 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 (Nat. Gas) and 8” to 13” WC (Propane). 2. Check gas valve wire. Ensure connection is secure. 3.
Page 62 SECTION 6. Error Codes (continued) Error Error Code Description Code 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.
The FT Series Wall Mounted, Combination Boiler Error Code Error Code Description Possible Remedies Page 63 Recover methods Mixing Valve Initial Value Error (Mixing Valve Cannot Return to Initial Position) 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. Check wiring connections to mixing valve. Ensure all are secure. 3. Replace mixing valve. 4.
Page 64 6.2 Fault Tree Analysis 1.
The FT Series Wall Mounted, Combination Boiler 6.2 Fault Tree Analysis (cont) 2. Gas Detection 3.
Page 66 SECTION 7 7.1 Trouble Shooting Diagnostics Question Answer Make sure that the ON/OFF button on the Control Panel has been turned ON. Burner does not ignite when the hot water is opened. 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. Make sure that there is water supplied to the unit. The unit activates once the inlet water flow is over 0 gpm.
Page 67 The FT Series Wall Mounted, Combination 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 panel and blower running at full speed. Nothing is shown in display control panel and no other boiler components are operating. Nothing is shown on control panel, but boiler is operating.
Page 68 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 panel.
The FT Series Wall Mounted, Combination Boiler this page intentionally left blank.
Page 70 SECTION 8 8.1 Maintenance nnual startup & A general maintenance Regular Maintenance - This Manual should be placed in a safe and dry location near the Combination 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 Combination boiler casing and the two upper and lower screws are tightened well.
The FT Series Wall Mounted, Combination Boiler - 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. AA Page 71 seat. If the valve continues to weep, contact your qualified service technician for inspecting the valve and system.
Page 72 8.2 Flushing the Combination Boiler 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. Disconnect electric power to the combination boiler. 2. Close the shutoff valves on both hot water outlet and cold water inlet lines. (V1 & V2) V3 V4 V2 V1 V3 valveV4“V3” 3. Connect hose “D1” to the V2 and place the free end in the bucket.
Page 73 The FT Series Wall Mounted, Combination Boiler 8.3 Draining and Cleaning Flow Restrictor Flow Restrictor DHW Cold Water Inlet Filter DHW Cold Water Inlet Filter CH Return Filter CH Return Filter FTCW140 FTCW199 1. Place a bucket under the appliance to collect the residual water inside the combination boiler. 2. Press the Power button on the front control panel to turn OFF the electrical power to the combination boiler. 3. Turn off the gas valve. 4.
Page 74 Freeze Protection (continued) 9.1 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 75 The FT Series Wall Mounted, Combination Boiler 9.2 Final Check Lists Final check : Installation Conditions.
Page 76 SECTION 10 Parts List and Illustrations FTCW140 Casing Assembly
Page 77 The FT Series Wall Mounted, Combination Boiler FTCW140 Casing140- (New) Casing Parts No.
Page 78 FTCW140 CH Assembly
Page 79 The FT Series Wall Mounted, Combination Boiler FTCW140 CH Block & DHW Block Ass’y (New) ‘B2’ CH Block Ass’y ‘B3’DHW Block Ass’y CH Parts No.
Page 80 FTCW140 DHW Assembly
C-3 Pump clip 53 CH Supply pipe assembly 53-1 Combination CH Supply pipe The FT Series Wall Mounted, Boiler P-5 3/4" Packing P-6 1" Packing FTCW140 54 Pump assembly ‘B3’DHW Block Ass’y 54-1 Pump P-6 1" Packing Part O-25 O-Ring P25 No.
Page 82 FTCW140 Heat Exchanger & Tank Assembly
Page 83 The FT Series Wall Mounted, Combination Boiler FTCW140 Heat Exchanger & Tank (New) Heat Exchanger & Tank Parts No.
Page 84 FTCW140 Blower and Gas Valve Assembly
& Gas Wall ValveMounted, (New) The Fan FT Series Combination Boiler Page 85 No. Description Part Number 82 82-1 82-2 82-3 82-4 83 83-1 83-2 83-3 83-4 83-5 84 84-1 84-2 84-3 84-4 85 85-1 85-2 85-3 85-4 85-5 P-7 Fan guide assembly Fan guide Damper body assembly Fan rubber packing #2 Fan rubber packing (1.
Page 86 FTCW199 Casing Assembly
Page 87 The FT Series Wall Mounted, Combination Boiler FTCW199 Casing Casing Parts No.
Page 88 FTCW199 CH Assembly
Page 89 The FT Series Wall Mounted, Combination Boiler FTCW199 CH Block & DHW Block Ass’y (New) CH Parts No. Description Part Number No.
Page 90 FTCW199 DHW Assembly
Page 91 The FT Series Wall Mounted, Combination Boiler FTCW199 DHW Block Ass’yDHW(New) Parts ion assembly ssembly ock ap er 20 22 22A ip y connector assembly pipe ing ssembly lve ensor ing 22 22 22A 25 ip ip assembly pipe ing ng mbly ng 25 ip Part Number No.
Page 92 FTCW199 Heat Exchanger & Tank Assembly
Heat Exchanger & Tank (New The FT Series Wall Mounted, Combination Boiler FTCW199 Heat Exchanger & Tank Parts No.
Page 94 FTCW199 Blower and Gas Valve Assembly
Page 95 The FT Series Wall Mounted, Combination Boiler Fan & Gas Valve _ Feature (Ne FTCW199 Blower and Gas Valve Parts No.
The FT Series Wall Mounted, Combination Boiler Notes: H2412400- 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.