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Mascot FT, Heating Only, Boiler

Page 1

Item

Description

Qty

LAARS Wall Mounted,

Boiler

MFTHW (all sizes)

1

Installation Instructions and

User’s Manual

1

Condensate Hose

1

Wall Mount Bracket

1

2 types of Wall Anchors

4

Pressure Relief Valve

(CH LINE 3/4

˝

30psi)

Model: CASH ACME F-82

1

Mesh Screens

3”

2

SECTION 1

Product Accessories

1.1 Introduction

This manual provides information necessary for the
installation, operation, and maintenance of the LAARS
Heating Systems

Mascot FT Boiler

. All application

and installation procedures must be read and reviewed
completely before proceeding with the installation. Consult
the LAARS Heating Systems factory, or your local factory
representative, with any problems or questions regarding
this equipment. Experience has shown that most operating
problems are caused by improper installation.
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. Such applicable requirements take precedence over
the general instructions contained herein.
All electrical wiring is to be done in accordance with the local
codes, or in the absence of local codes, with: 1) The National
Electrical Code ANSI/NFPA No. 70-latest Edition, or 2) CSA
STD. C22.1 “Canadian Electrical Code - Part 1”. This appliance
must be electrically grounded in accordance with these codes.

1.2 Included with the Appliance

4

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1
2
3
4
5
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Содержание mascot ft MFTHW

Страница 1: ...ury property damage or death Improper installation and or operation will void the warranty AVERTISSEMENT 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 pr...

Страница 2: ...ent Air Pipe Termination 27 4 9 Gas Supply and Piping 29 4 10 Gas Supply Pressure 34 4 11 Gas Set Up and Adjustment 35 4 12 High Altitude Installations and Orifices 36 4 13 Natural Gas to Propane Conversion 37 4 14 Plumbing Guidelines 39 4 15 Pressure Relief Valve 46 4 16 Disposal of Condensate 47 4 17 Electrical Wiring Connections 48 4 18 DIP Switches 49 4 19 Control Board Electrical Diagram 50 4...

Страница 3: ...ry representative with any problems or questions regarding this equipment Experience has shown that most operating problems are caused by improper installation 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 ot...

Страница 4: ...A 1 X N SERIES Mascot FT H Heating SIZE MBTU h 8 0 1 0 0 1 2 0 1 4 0 1 9 9 FUEL N Natural P Propane CONFIG W Wall Hung ALTITUDE A 0 10 000 Feet REVISION 1 First OPTIONS X Standard PUMP N with Pump 1 M SECTION 2 Product Characteristics 2 1 Model Nomenclature The Model Nomenclature is shown on your Rating Plate and consists of a series of letters and numbers Nomenclature that further identifies the ...

Страница 5: ... 60Hz 4A Maximum Power Consumption 160W Ignition System Direct Electronic Ignition Automatic Flame Sensing Burner System Single Orifice Premixed Fuel Modulation Metal Ceramic Infrared Gas Valve System Combination modulating Current proportional Dimensions W17 3 H29 0 D14 9 Weight 100 lbs Main Controller Control Display NGTB 900CP P 950EH Water Pressure CH Min 15 Max 30 PSI Connection Sizes CH Supp...

Страница 6: ... 00 WC Power Supply Main Supply 120V 60Hz 4A Maximum Power Consumption 160W Ignition System Direct Electronic Ignition Automatic Flame Sensing Burner System Single Orifice Premixed Fuel Modulation Metal Ceramic Infrared Gas Valve System Combination modulating Current proportional Dimensions W17 3 H29 0 D14 9 Weight 100 lbs Main Controller Control Display NGTB 900CP P 950EH Water Pressure CH Min 15...

Страница 7: ...Power Supply Main Supply 120V 60Hz 4A Maximum Power Consumption 160W Ignition System Direct Electronic Ignition Automatic Flame Sensing Burner System Single Orifice Premixed Fuel Modulation Metal Ceramic Infrared Gas Valve System Combination modulating Current proportional Dimensions W19 6 H32 0 D16 2 Weight 110 lbs Main Controller Control Display NGTB 900CP P 950EH Water Pressure Min 15 Max 30 PS...

Страница 8: ...ems Page 6 Description Diameter A Air Intake Collar 3 B Vent Pipe Collar 3 C CH Supply Adapter 1 D CH Return Adapter 1 E Gas Inlet Adapter 3 4 F Condensate Line 1 2 MFTHW 80 100 120 140 Heating only boiler 2 3 Dimensions ...

Страница 9: ... Only Boiler Page 7 Description Diameter A Air Intake Collar 3 B Vent Pipe Collar 3 C CH Supply Adapter 1 D CH Return Adapter 1 E Gas Inlet Adapter 3 4 F Condensate Line 1 2 MFTHW 199 Heating only boiler 2 3 Dimensions ...

Страница 10: ...pter 16 CH Supply Adapter NO Name of Component 17 CH Pressure Gauge 18 CH Return Adapter 19 Condensate Trap 20 Condensate Adapter 21 CH Return Temperature Sensor 22 Condensate Air Pressure Switch 23 Terminal Block 24 Heat Exchanger 25 Ignition Transformer 26 Sight Glass 27 Burner Overheat Switch 28 Igniter 29 BLDC Fan blower 30 Exhaust Temperature Sensor 31 Air Pressure Sensor 32 Vent Pipe Collar ...

Страница 11: ...Main PCB 11 Control Display 12 Manual ON OFF Power Switch 13 Gas Inlet Pipe 1 14 CH Internal Pump 15 Gas Inlet Adapter 16 CH Supply Adapter NO Name of Component 17 CH Pressure Gauge 18 CH Return Adapter 19 Condensate Trap 20 Condensate Adapter 21 CH Return Temperature Sensor 22 Condensate Air Pressure Switch 23 Terminal Block 24 Heat Exchanger 25 Ignition Transformer 26 Sight Glass 27 Burner Overh...

Страница 12: ...play 13 Manual ON OFF Power Switch 14 CH Internal Pump 15 Gas Inlet Adapter 16 CH Supply Adapter NO Name of Component 17 CH Pressure Gauge 18 CH Return Adapter 19 Condensate Trap 20 Condensate Adapter 21 CH Return Temperature Sensor 22 Condensate Air Pressure Switch 23 Terminal Block 24 Heat Exchanger 25 Ignition Transformer 26 Sight Glass 27 Burner Overheat Switch 28 Igniter 29 BLDC Fan blower 30...

Страница 13: ...r Page 11 Water in the heating pipe is used for space heating 2 5 Product Flow Paths and Characteristics Hydronic Supply Hydronic Return Vent Combustion Air Space Heating Water Return Space Heating Water Supply GasInput Air Intake ...

Страница 14: ...AFETY READ BEFORE OPERATING If you do not follow these instructions exactly a fire or explosion could result causing property damage personal injury or loss of life A This appliance does not have a pilot It is equipped with an ignition device which automatically lights the burner Do not try to light the burner by hand B BEFORE OPERATING smell all around the appliance area for gas Be sure to smell ...

Страница 15: ...this Boiler if any part has been under water Immediately call a qualified technician for inspecting the Boiler and replacing any part of the control system and gas control which have been under water Do not power up the unit until the gas and water supply valves are fully opened Make sure that the fresh air intake port and exhaust gas port are opened and functional DO NOT attempt to install repair...

Страница 16: ...e sure that there is sufficient inflow and outflow of air ventilation while using the unit If the ventilation is improper combustion quality may deteriorate inside the appliance and cause shortened life of the appliance 3 Burn Warning Be careful not to burn yourself on the flue or pipes They become extremely hot during operation 3 2 Safety Precautions and Proper Use WARNING Do not use the applianc...

Страница 17: ... materials gasoline and other flammable liquids Failure to keep Boiler area clear and free of combustible materials gasoline and other flammable liquids and vapors can result in severe personal injury death or substantial property damage The Boiler which has gas control system components must be protected from any possible danger during operation and service If new Boiler replaces an existing appl...

Страница 18: ...n drill 4 holes 0 47 dia with a 1 2 drill bit into the wall through the Bracket If mounting to a concrete wall then use the concrete anchors If onto wood or 5 8 16 mm plywood then use the wood screws Do not hang the Mascot FT onto sheetrock unless it is possible to fasten directly into the structural studs If the included anchors do not suit your installation you must use Field Supplied anchors th...

Страница 19: ...ting of all equipment in the enclosure When communicating to the outdoors through horizontal ducts each opening shall have a minimum free area of not less than 1square inch per 2000 Btu hr 1100 square mm kW of total input rating of all equipment in the enclosure Method 2 One permanent opening commencing within 12 300mm of the top of the enclosure shall be permitted The opening shall directly commu...

Страница 20: ...N CSA B149 1 or applicable provisions of the local building codes CAUTION 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 These instructions shall also specify that the venting system Category I II and IV boilers must ...

Страница 21: ...NFPA 54 CAN CSA B149 1 and ULC S636 Failure to follow this manual and applicable codes may lead to property damage severe injury or death __________________________________________ WARNING Use of cellular core PVC ASTM F891 cellular core CPVC or Radel polyphenolsulfone in non metallic venting systems is prohibited and that covering non metallic vent pipe and fittings with thermal insulation is pro...

Страница 22: ...ot apply an electric damper draft hood or vent damper with this Boiler Do not locate vent termination where exposed to prevailing winds Moisture and ice may fall on surface around vent termination To prevent deterioration surface must be in good repair sealed painted etc with alternate manufacturers certified components and or unlisted components 5 The venting must be installed according to the ve...

Страница 23: ... center line extended above meter regulator assembly 3 ft 91 cm within a height 15 ft 457 cm above the meter regulator assembly I Clearance to service regulator vent outlet 3 ft 91 cm J Clearance to non mechanical air supply inlet to building or the combustion air inlet to any other appliance 12 in 30 cm 36 in 91 cm K Clearance to a mechanical air supply inlet 3 ft 91 cm above if within 10 ft 3 m ...

Страница 24: ...ide corner H Clearance to each side of center line extended above meter regulator assembly 36 in 91 cm within a height 15 ft 4 57 m above the meter regu lator assembly I Clearance to service regulator vent outlet 36 in 91 cm J Clearance to non mechanical air supply inlet to building or the combustion air inlet to any other appliance 48 in 120 cm below or to side of opening 12 in 30 cm above openin...

Страница 25: ...e side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic the hard wired carbon monoxide with alarm and battery back up may be installed on the next adjacent floor level b In the event that the requirements of the subdivision cannot be met at the time of completion of installation the owner shall have a period of thirty 30 days to comply with the above requirem...

Страница 26: ...ue appareil toujours raccordé au système d évacuation commun et qui fonctionne alors que d autres appareils toujours raccordés au système d évacuation ne fonctionnent pas 1 Sceller toutes les ouvertures non utilisées du système d évacuation 2 Inspecter de façon visuelle le système d évacuation pour déterminer la grosseur et l inclinaison horizontale qui conviennent et s assurer que le système est ...

Страница 27: ... the size of vent pipe 2 3 according to the installation conditions Push the pipe into the collar socket until it touches the bottom of the socket fitting For 2 installations install a field supplied 3 to 2 adaptor Adaptor must be installed in vertical section of piping only Boiler model 3 Combustion Air Vent Pipe 2 Combustion Air Vent Pipe Max Elbow Max Max Elbow Max MFTHW all sizes 100 30M 6 50 ...

Страница 28: ...ombustion and ventilation air Model MFTHW80 MFTHW100 MFTHW120 MFTHW140 MFTHW199 Maximum Input BTU H 80 000 100 000 120 000 140 000 199 000 Indoor make up air is provided a minimum free area of 1 in2 per 1 000 BTU H 80 in2 13 1 4 W x 13 1 4 H 100 in2 13 1 4 W x 13 1 4 H 120 in2 13 1 4 W x 13 1 4 H 140 in2 13 1 4 W x 13 1 4 H 199 in2 13 1 4 W x 13 1 4 H Table 7 Adequate Free Area WARNING Use of cell...

Страница 29: ...of the wall vents installed Min 4 Max 20 Figure 3 Horizontal Vent Termination Direct Vent Sidewall Terminations VENT AIR INLET Vent Termination 1 Rodent Screen Installation Install Rodent Screen and Vent Terminal additional purchase see Figure for appropriate configuration After connecting vent air inlet terminal it is required to install screen for the terminal to prevent incoming of rodent which...

Страница 30: ...rect Vent Optional Side Wall Terminations 4 8 Vent Pipe Termination continued Figure 5 Figure 6 Concentric Vent Termination Direct Vent Optional Horizontal and Vertical Concentric Vent Figure 7 Direct Vent Optional Side wall Terminations 4 Concentric Vent Termination Direct Vent Optional Horizontal and Vertical Concentric Vent Strap 1 25mm to 4 100mm Maintain 12 300mm min Combustion Air Vent US 12...

Страница 31: ...roper type of gas by checking the rating plate Mascot FT will function properly at elevations up to 10 000 feet 3050 m Refer to Section 4 12 for High Altitude Settings 2 The maximum inlet gas pressure must not exceed 13 W C 3 2kPa The minimum inlet gas pressure is 3 5 W C 1 0kPa 3 Refer to Table 8 Table 9 and Table 10 to size piping 4 Run gas supply line in accordance with all applicable codes 5 L...

Страница 32: ...3 4 192 137 112 97 87 80 69 62 48 44 1 383 269 218 188 168 153 132 118 91 82 1 1 4 639 456 374 325 292 267 232 208 171 148 1 1 2 1260 888 723 625 559 509 440 393 320 277 2 2930 2080 1700 1470 1320 1200 1040 933 762 661 Pipe size Length ft 10 20 30 40 50 60 80 100 150 200 1 2 172 118 95 81 72 65 56 50 40 34 3 4 360 247 199 170 151 137 117 104 83 71 1 678 466 374 320 284 257 220 195 157 134 1 1 4 13...

Страница 33: ...8 75 69 1 605 425 344 297 265 241 208 186 143 129 1 1 4 971 661 528 449 397 359 307 270 217 183 1 1 2 1990 1400 1140 988 884 805 696 621 506 438 2 4640 3290 2680 2330 2080 1900 1650 1480 1210 1050 Pipe size Length ft 10 20 30 40 50 60 80 100 150 200 1 2 291 200 160 137 122 110 101 94 84 67 3 4 608 418 336 287 255 231 212 197 175 140 1 1150 787 632 541 480 434 400 372 330 265 1 1 4 2350 1620 1300 1...

Страница 34: ...as supply line should be installed close to the unit To facilitate any future maintenance it is also CLOSED POSITION UNION FITTING MANUAL SHUT OFF VALVE GAS PIPE recommended that an approved gas union fitting be installed in the supply line between the shut off valve and the 3 4 female NPT connection on the Boiler 1 Install an approved gas line pipe to gas line connection under the Boiler Include ...

Страница 35: ...Trap Gas Regulator Supply Press 12 LP GAS TANK Other Appliance Sediment Trap Boiler must be installed downstream of the gas meter for adequate gas supply Boiler gas connection pipe not less than a 1 2 Suggested Propane Gas LP Layout Suggested Natural Gas NG Layout ...

Страница 36: ...ividual manual shut off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1 2 psi 3 5 kPa Loosen the pressure port bolts before you check the gas inlet pressure Inlet Gas Pressure Port Manifold Pressure Port Inlet Gas Pressure Port Manifold Pressure Port CAUTION The minimum and maximum inlet gas line pressures must be Natural Gas LP Gas Maxim...

Страница 37: ...59 1583 Headquarters 20 Industrial Way Rochester NH USA 03867 603 335 6300 Fax 603 335 3355 1869 Sismet Road Mississauga Ontario Canada L4W 1W8 905 238 0100 Fax 905 366 0130 800 900 9276 Fax 800 559 1583 Customer Service Service Advisors Document 4296B Mascot FT Heating Only Gas Conversion Kit Figure E Conversion label 14 Setup your combustion analyser and place the sensor into the combustion test...

Страница 38: ...hipped with a Natural Gas Nozzle or Orifice that is designed for altitudes up to 3 000 ft Yet the Mascot FT may be installed without modification at elevations up to 10 000 ft as the unit will de rate at high altitudes Mascot FT s that have been converted to propane will also de rate at high altitudes up to 10 000 ft To order a specialized High Altitude Gas Line Nozzle or Orifice to allow full rat...

Страница 39: ...ns du fabricant et tous les codes et les exigences de l autorité compétente Si les informations contenues dans ces instructions n est pas suivi à la lettre un incendie une explosion ou de la production de monoxyde de carbone mais résultat causant des dommages matériels des blessures ou des pertes de vie Le service est responsable pour la bonne et complète l installation de ce kit L installation n ...

Страница 40: ...OWER COVER GAS INLET PIPE GAS INLET PIPE MFTHW 80 100120 140 MFTHW 199 Figure A MFTHW 80 100 120 140 MFTHW 199 BRASS FITTINGS NOZZLE BRASS FITTINGS PACKING PACKING ORIFICE 3 Using a Phillips screwdriver remove the 4 screws on the front cover See Figure A 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 of the Gas Inlet Pipe 5 Com...

Страница 41: ...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 Figure D Gas Valve for 80 to 140 MBH Gas Valve for 199 MBH The gas valve on the smaller models is mounted vertically Manifold Pressure Port Manifold Pressure Port DO NOT C H A N G E REFERENCE ONLY Table C Manifold pressure Propane Gas LP Natural Gas NG MFTHW 80 100 0 102 WC 0 102 W...

Страница 42: ...e a minor adjustment 1 8 turn to either increase or decrease CO2 21 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 CO2 at both are within acceptable levels Be sure to put the adjustment port cap screw back onto the valve when done 22 Once the CO2 and manifold pressure measurements for both MIN and MAX Fire are acce...

Страница 43: ...l heating water pipe should be 1 diameter Isolation valves Shutoff valve will be used All piping should be insulated Applicable Backflow Preventer Apply a backflow preventer valve in the DHW supply inlet water Inlet to the unit as required by local codes Use at least the MINIMUM pipe size for the entire boiler loop piping connecting boiler to and from the primary secondary connection Use only prim...

Страница 44: ...ane When the tank is installed in and connected to the piping of the system water enters the other side of the tank chamber and presses down on the diaphragm You should always install an Automatic Air Vent on the top of the air separator to remove residual air from the system Automatic air vent has been installed on the inside of the Kiturami boiler The installation of additional air vent is optio...

Страница 45: ...Circulation pump Pressure relief valve Expansion tank Air separator Closed type Isolation valve Check valve Gate valve 4 14 Plumbing Guidelines Zoning with circulation pump 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 Figure 10 Plumbing Diagram using zones and circulation pu...

Страница 46: ...ed type Isolation valve Check valve Gate valve 4 14 Plumbing Guidelines Zoning with zone valve 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 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 Figure 11 Plumbi...

Страница 47: ...Tank CH DHW Pump Pressure relief valve Indirect DHW Tank Isolation Valve 2 way valve Mixing Valve Indirect Water Heating Installer is responsible for all equipment and detailing required by local codes The minimum pipe size of CH piping should be 1 in diameter 4 14 Plumbing Guidelines Figure 12 Plumbing Diagram using indirect tank ...

Страница 48: ...must be installed on the DHW supply line as close to the unit as possible Valve size 3 4 maximum 150 psi Not included with boiler For safety the relief valve s must be installed into it s designed location and not be removed or plugged Failure to comply with the guidelines on installing the pressure relief valves and discharge piping can result in personal injury death or substantial property dama...

Страница 49: ...ain lines such as 1 2 PVC CPVC Polypropylene pipe or included plastic hose NOTICE For Category II and IV boilers be installed so as to prevent accumulation of condensate and For Category II and IV boilers where necessary have means provided for drainage of condensate AVIS les chaudières de catégories II et IV doivent être installées de façon à empêcher l accumulation de condensat et si nécessaire ...

Страница 50: ...llowable current for each circulator is 16 amps at 125VAC Housing Nylon 66 UL 94V 2 Rocker Nylon 66 UL 94V 2 Terminal Copper Alloy Terminal block External power connector DFT 20A 10P 20 amps at 300VAC DHW and CH pump terminals for external pump are live 120V limited to 2 0 A They operate respective to an external call e g T T for heat WARNING Install wiring and electrically ground boiler in accord...

Страница 51: ...Table B set DIP Switch 5 to OFF for LP Propane 10 Turn ON the GAS and WATER supply to the Mascot FT 11 Turn ON the Mascot FT 12 Connect a manometer to the manifold pressure port For dual port manometers use the positive pressure side Check for proper manifold gas pressure Refer to Table C ON OFF MIN Fire Normal Operation MAX Fire Normal Operation NG Natural LP Propane 3 Vent Size 2 Vent Size ON OF...

Страница 52: ...LAARS Heating Systems Page 50 4 19 Control Board Electrical Diagram Control Board ...

Страница 53: ...Mascot FT Heating Only Boiler Page 51 4 20 Ladder Diagram ...

Страница 54: ... 485 RS485 SELV 5V 2 RS485 SELV 5V 3 4 RS485 SELV 5V 5 RS485 SELV 5V CN4 LWD1140 06D 1 FAN Unuse 2 GND SELV 30V 3 VDD SELV 14V 4 Fan power start coil SELV 30V 5 Fan power end coil SELV 30V 6 Fan speed feedback signal SELV 14V CN8 SMW250 04D 1 MCU ISP GND SELV 5V 2 ISP Reset port SELV 5V 3 ISP TOOL0 Data port SELV 5V 4 VCC SELV 5V CN11 LWD 1140 16 1 HWL AC 24V Input Heat Demand SELV 12V 9 2 LWL Low...

Страница 55: ...ing water temperature sensor SELV 5V 9 3 DH S Exhaust temperature sensor SELV 5V 10 4 I S CH Return temperature sensor SELV 5V 11 5 BG S DHW temperature sensor or Mechanical aquastat connection SELV 5V 12 6 ST S System temperature sensor SELV 5V 13 7 SP S CH over heat temperature sensor SELV 5V 14 CN3 SMW250 06D 1 APS VCC SELV 5V 2 GND SELV 5V 3 Voltage input SELV 5V 4 6 FLUX1 Unuse ...

Страница 56: ... F D Time Date Set No Change To SET Year Month Week Day Time Min E Scroll Select Menu select or value up down or setting dial 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 Mascot FT and to change temperature set points set system variab...

Страница 57: ...ate Communication state indication Time setting mode Time Dispaly Install mode indication Fan operating mode Fan operating mode indication Flame signal Flame Signal indication CH pump mode CH pump mode indication Storage pump mode Storage pump mode indication Internal recirculation mode Internal recirculation mode indication Celsius mode Indicated as Celsius temperature Fahrenheit mode Indicated a...

Страница 58: ...t have specific LCD output and dedicated controls Set point change mode Lock mode Error mode Status display mode Outside Temperature mode Installer mode Control Display will not allow changing of button in case of lock mode activated Indicate Indicator Current Operating Temperature Set Point If the Fan is operating If a flame is detected Celsius or Fahrenheit or Date and Time indicator If Outside ...

Страница 59: ...h 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 Set the HOUR 1 24 Hour of the Day by turning the dial E Then press the dial E to Save e Set the MIN 1 60 Minute of the Hour by turning the dial E Then press the dial E to Save f Set the Day Sun Sat by turning the dial E Then pr...

Страница 60: ... Time indicator If CH pump is operating If there currently a Demand for Central Heat CH Default CH set point is 180 F 82 C CH set point range is 86 F 180 F 30 0 C 82 0 C To change 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 c...

Страница 61: ... 2 rh Time for burner operation Unit 1hour 3 rH Time for burner operation Unit 1 000hour 4 It Cycle for ignition Cycle 10 times the displayed unit 5 IH Cycle for ignition Cycle 10 000 times the displayed unit M CC SELF Percentage of self units running Percentage of self units running ALL Capacity for all operating cascade units Percentage of all cascade units running This screen shows the overal c...

Страница 62: ...F 5 OL Minimum Outdoor Temperature Sets the minimum outdoor design temperature for the system Minimum outdoor temperature must be set at least 9 F below the maximum outdoor temperature Range 4 F to Maximum Outdoor Temperature 9 F Default 5 F 6 cH Maximum Supply temperature Sets the maximum design supply temperature based on the minimum outdoor design temperature Maximum supply temperature must be ...

Страница 63: ... NO or YES Default NO 16 Ft CH Anti Cycling time This function delays burner operation during CH mode Range 0 20 min Default 1 17 bo Set differential temperature to turn burner ON When set the appliance will operate to heat CH water when water temperature falls below a differential setting Example If set point is 180 F and differential is 27 F the appliance will turn on when CH water temperature f...

Страница 64: ... Only works in installation mode Turns off when in normal mode Default OFF 35 SS SS Sd Allows the user to set the year of next service reminder Allows the user to set the year of next service reminder XX XX XXXX MONTH DAY YEAR SS br Allows the user to set the service reminder based on BURNER RUN HOURS Allows the user to set the service reminder based on BURNER RUN HOURS 0 OFF 1 9000Hours Default 0...

Страница 65: ... 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 Turn the E dial clockwise to increase and counterclockwise...

Страница 66: ...s the appliance will ignite As the signal continues to rise towards its maximum of 10 volts the appliance will increase in set point temperature Adjust 6 cH and 7 cL to set MIN and MAX boiler water temperatures respectively Connect a building management system or other auxiliary control signal to the terminals marked for this purpose on the appliance terminal block shown in Piping Diagrams this ma...

Страница 67: ...ication between the Control Display and the main controller is lost the will not be displayed Error mode The Control Display will show the following information when an Error is presented Indicate Indicator Error Er sign Segment Error Code Er 11 If Communication state is activated ...

Страница 68: ... Max Fire setting is ON Switches 6 and 7 should be OFF for normal operation 2 Check if CH inlet pipe is blocked Ensure there is enough water flowing to the appliance 3 Check Operating Temperature sensor at CH heat exchanger outlet If resistance is zero replace the sensor 4 If the problem persists replace the main control Hard Lock 20 Condensate Closed is Normal Open is Fault Condensate Drain Trap ...

Страница 69: ...nections for blockages 2 Check the burner assembly 3 Check fan operation If fan appears to be operating normally but RPMs are too high replace the fan 4 If the problem persists replace the main control Hard Lock 42 Jumped Wire Disconnected Press the Power button to clear the Error Code If Error happens again 1 Ensure the jumped wire is properly connected 2 If the problem persists replace the main ...

Страница 70: ...s to low water level sensor Ensure all are secure 4 Check low water level sensor resistance If resistance is zero replace the sensor 5 If the problem persists replace the main control Soft Lock 81 Low Water Level Circuit This Error Code will go away when the condition is remedied If Error happens again 1 Ensure all valves are open to the appliance and there are no leaks 2 Check wiring connections ...

Страница 71: ...Mascot FT Heating Only Boiler Page 69 6 2 Fault Tree Analysis 1 Flame detection ...

Страница 72: ... Systems Page 70 6 2 Fault Tree Analysis 2 Gas Detection 3 Storage DHW OP CH overheat Exhaust heat Sensor detects Error code contents E28 DHW NTC open or short E33 OP NTC open or short E35 Exhaust NTC open or short ...

Страница 73: ...t Make sure that the filter in the cold water supply line is not clogged with debris Make sure that the gas supply type is correct Hot water temperature fluctuates at the opened tap Make sure that the filter in the cold water supply line is clean Make sure that the gas supply type is correct Check the supply gas pressure is sufficient The blower is still operating after the combustion stops This i...

Страница 74: ...boiler Is there 120 Volts at the service switch Troubleshoot and correct the power supply to the manual switch Is the ON OFF POWER SWITCH inside boiler case turned on Turn ON the manual power switch inside the boiler case Check for 120 volts at the line voltage terminal block located inside the boiler case Correct wiring inside the boiler case using the wiring diagram in this manual Inspect the fu...

Страница 75: ... when turned off Reset using manual reset screen on Control Display Power button Check wire harness for loose connections and pin engagement at blower Connections Boiler in standby mode and blower not running If BLOWER SPEED is not 0 RPM then replace blower If blower does not rotate during ignition sequence check for 120V power at blower connection If 120Vac power at blower motor and it doesn t st...

Страница 76: ... properly sealed Call your qualified service technician if you notice any problems Check the relief valve Inspect the Boiler relief valve and the relief valve discharge pipe for any signs of weeping or leakage If the relief valve often weeps immediately contact your qualified service technician for inspecting the Boiler and system Check the condensate outlet While the Boiler is running check the d...

Страница 77: ...oiding any possibility of scalding from hot water If water flows freely release the lever and allow the valve to seat Watch the end of the relief valve discharge pipe to ensure that the valve does not weep after the line has had time to drain If the valve weeps lift the seat again to attempt to clean the valve seat If the valve continues to weep contact your qualified service technician for inspec...

Страница 78: ... pump inlet and place the free end in the bucket 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 ...

Страница 79: ...all Is there space for a drain which is close to the Boiler Are there any combustible materials near the Boiler and vent pipe Is the air supply sufficient for proper operation of the Boiler Are the proper service clearances maintained Is the distance between the Boiler and point of vent termination minimized Is the proper distance from windows doors and other intake vents maintained Final check Ga...

Страница 80: ...e pressure relief valve of CH Plumbing at least 1 in diameter Is the pressure relief valve of DHW Plumbing at least 3 4 in diameter Have you installed the pressure relief valve on the hot water outlet pipe near the Boiler Final check Burner flames The burner flame must be checked periodically for a constant proper blue color If the flame does not appear normal the burner may need to be cleaned If ...

Страница 81: ...Mascot FT Heating Only Boiler Page 79 ...

Страница 82: ...uct FT1611 8 2 Air Inlet adaptor inside FT1612 9 Air Vent FT1321 10 Air Vent adpator FT1548 11 Air vent rubber cap FT1013 12 Control Bracket FT1049 13 Air pressure switch FT1015 14 Ignition Transformer ST1006 15 Control sub bracket FT1050 16 Bracket FT1051 17 PCB Control NGTB 900CP FT1052 18 Display Contol P 950EH FT1053 19 Power Switch FT1020 20 Condensate Blockage Air Press Switch FT1022 21 Term...

Страница 83: ...Mascot FT Heating Only Boiler Page 81 ...

Страница 84: ...anger Ass y 80 100K FT1852 Heat Exchanger Ass y 120 140K FT1068 35 1 Burner Ass y FT1309 35 2 Overheat sensor FT1310 35 3 Burner upper case FT1658 35 4 Ceramic Paper TBD FT1659 35 5 Burner FT1314 35 6 Burner case sealing O ring FT1661 35 7 Ingiter FT1315 35 8 Ignitor Gasket FT1316 35 10 Refractory FT1665 38 Flame detector sensor Cover FT1069 39 Flame detector sensor FT1327 40 Flame detector sensor...

Страница 85: ...Mascot FT Heating Only Boiler Page 83 ...

Страница 86: ...T1865 Intake Orifice FT 100 FT1866 Intake Orifice FT 120 FT1867 Intake Orifice FT 140 FT1535 57 3 Gas Mixer housing FT1409 57 4 Fan sealing O Ring ST1038 58A Nozzle natural 80K FT1854 Nozzle natural 100K FT1855 Nozzle natural 120K FT1856 Nozzle natural 140K FT1083N 58B Nozzle LP 80K FT1857 Nozzle LP 100K FT1858 Nozzle LP 120K FT1859 Nozzle LP 140K FT1083P 59 1 2 Packing FT1421 60 Gas Pipe upper 80...

Страница 87: ...Mascot FT Heating Only Boiler Page 85 ...

Страница 88: ... P75 FT1609 8 Air Inlet Duct Ass y FT1010 8 1 Air Inlet Duct FT1611 9 Air vent FT1321 10 Air vent adaptor FT1548 11 Air vent rubber cap FT1013 12 Air pressure sensor FT1015 13 Control bracket FT1751 14 Ignition transformer ST1006 15 Control sub bracket FT1752 16 Control Display P 950EH FT1620 17 Bracket FT1753 18 Condensate blockage air press switch FT1022 20 power switch FT1020 21 Terminal block ...

Страница 89: ...Mascot FT Heating Only Boiler Page 87 ...

Страница 90: ...aust sensor Bracket FT1306 33 Exhaust pipe FT1756 34 Exhaust pipe packing lower FT1757 35 Heat exchanger ass y FT1758 35 1 Burner Ass y FT1759 35 2 Burner upper case FT1760 35 3 Burner packing FT1761 35 4 Burner FT1762 35 5 Ignitor FT1763 35 6 Ignitor gasket FT1316 35 7 overheat sensor FT1310 35 8 Burner down case FT1764 36 Temperature sensor FT1324 37 Low level sensor FT1325 38 Flame detector bra...

Страница 91: ...Mascot FT Heating Only Boiler Page 89 ...

Страница 92: ...52 1 Fan FT1406 52 2 Fan sealing O Ring ST1038 52 3 AGM venturi FT1773 52 4 AGM O Ring FT1774 52 5 AGM Body FT1775 53 Stainless band FT1603 54 Intake hose FT1776 55 Stainless band FT1777 56 Intake adaptor FT1713 57 Gas Valve ass y FT1778 57 1 Gas valve outlet FT1728 57 2 Gas valve O Ring FT1727 57 3 Gas valve FT1750 57 4 Gas valve inlet FT1538 57 5 Gas valve bracket FT1779 58 1 2 Packing FT1421 59...

Страница 93: ...Mascot FT Heating Only Boiler Page 91 ...

Страница 94: ...LAARS Heating Systems Page 92 This page intentionally left blank ...

Страница 95: ...Mascot FT Heating Only Boiler Page 93 This page intentionally left blank ...

Страница 96: ...4W 1W8 905 238 0100 Fax 905 366 0130 www Laars com Litho in U S A Laars Heating Systems 1609 Document 1342E Dimensions and specifications subject to change without notice in accordance with our policy of continuous product improvement H2375000E Notes For LAARS Product and Service VIDEOS All Manuals Install Operate Start Up and Service Manuals can be downloaded at https www youtube com user LaarsHe...

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