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Installation, operating, commissioning and maintenance instructions

 

Water heaters for other than recreational vehicle installation 

Instruction Manual  

for model 

FLOWMAX-120 

Condensing water heater 

116,000 BTU

 

 

 

 

 
 

 

 
 

WARNING 

If the information in these instructions is not followed exactly, a fire or explosion may result, causing property damage, personal injury or death. 

-Do not store or use gasoline or other flammable vapours and liquids in the vicinity of this or any other appliance. 
-WHAT TO DO IF YOU SMELL GAS 

Do not try to light any appliance. 

Do not touch any electrical switch; do not use any phone in your building. 

 

 

 

 

 

Immediately call your gas supplier from a neighbour’s phone.  Follow the gas supplier’s instructions.                                                                   

If you cannot reach your gas supplier, call the fire department.  

-Installation and service must be performed by a qualified installer, service agency or the gas supplier. 

Summary of Contents for FLOWMAX-120

Page 1: ...sonal injury or death Do not store or use gasoline or other flammable vapours and liquids in the vicinity of this or any other appliance WHAT TO DO IF YOU SMELL GAS Do not try to light any appliance D...

Page 2: ......

Page 3: ...ard 16 3 2 Unpacking 17 3 3 Installation water heater 18 3 4 Water connections 19 3 5 Domestic Hot Water Circuit Hard Water Warning Condensate Drain 20 3 6 Schematic of Piping Installation 22 3 7 Gas...

Page 4: ...Flushing out the primary side 50 6 6 Draining the central heating and domestic hot water system 51 6 7 Maintenance operations 52 6 8 Wiring diagrams 59 6 9 D H W Sensor Connection 65 6 10 Troubleshoo...

Page 5: ...ystem and any gas control which has been underwater Be sure not to reverse the water and gas connections as this may damage the gas valves Water temperatures over 125 F can cause severe burns instantl...

Page 6: ...lammable liquids or engine driven equipment or vehicles are stored operate or are repaired Flammable vapours are heavy and travel along the floor and may be ignited by the igniter or main burner flame...

Page 7: ...hould there be a smell of gas present in the room where the appliance is installed DO NOT attempt to activate any electric switches telephones or any other equipment that may cause sparks Open doors a...

Page 8: ...f qualified licensed professionals for the installation of hard wired carbon monoxide detectors a In the event that the side wall horizontally vented gas fuelled equipment is installed in a crawl spac...

Page 9: ...GENERAL INFORMATION 5...

Page 10: ...GENERAL INFORMATION 6...

Page 11: ...GENERAL INFORMATION 7...

Page 12: ...GENERAL INFORMATION 8...

Page 13: ...to operate In its simplicity the wall mounted appliance is equipped with all the appropriate accessories required to make it a fully independent water heater capable of satisfying domestic hot water p...

Page 14: ...pressure heating Bar psi 0 3 4 29 Domestic Hot Water circuit D H W temperature setting min max C F 35 60 95 140 Max Hot water working pressure Bar psi 6 86 Min Hot water working pressure Bar psi 0 5...

Page 15: ...2 5 2 28 7 HO CWI G HI HWO 1 9 3 1 4 1 2 12 2 28 7 4 4 7 3 4 4 1 9 12 3 1 9 4 9 2 7 3 2 2 2 Dimensions LEGEND HI HEATING INLET 3 4 HO HEATING OUTLET 3 4 G GAS 1 2 CWI COLD WATER INLET 1 2 HWO HOT WAT...

Page 16: ...C AIR VENT VALVE 12 HEATING SAFETY THERMOSTAT 13 HEATING SENSOR 14 PUMP WITH AIR VENT 15 WATER PRESSURE SWITCH 16 FLUE HOOD 17 SAFETY THERMOFUSE 18 EXPANSION VESSEL 19 D H W SENSOR 20 CONDENSATE TRAP...

Page 17: ...URE SWITCH 16 FLUE HOOD 17 SAFETY THERMO FUSE 18 EXPANSION VESSEL 19 D H W SENSOR 20 CONDENSATE TRAP 21 WATER PRESSURE GAUGE 22 AUTOMATIC BY PASS 23 CONDENSATE DRAIN PIPE 24 SYSTEM DRAIN VALVE 25 ROOM...

Page 18: ...TECHNICAL CHARACTERISTCS 14 2 5 Circulation pump head flow graph Pump head I II III Pump speed Boiler losses I II III 0 5 10 15 20 25 30 0 2 4 6 8 10 Water flow US gpm Head ft...

Page 19: ...er deficiency indicator Temperature display When the water heater is switched off at the switch on the control panel the word OFF appears on the display The D H W and central heating frost protection...

Page 20: ...and Instantaneous Conforms to ANSI STD Z21 10 3 certified to CSA STD 4 3 Failure to install a gas appliance correctly and in accordance with the above norms could lead to prosecution It is in the inte...

Page 21: ...ntial hazard A Place the packed appliance on the floor see fig 1 making sure that the up arrow is facing down Remove the staples and open out the four flaps of the box B Rotate the water heater 90 whi...

Page 22: ...the necessary clearances indicated in figure 1 are respected To make the installation easier the water heater is supplied with a template to enable the pipe connections to be positioned prior to fixin...

Page 23: ...e drain line is installed to direct discharge to a safe location such as an open drain Avoid scalding and or water damage A pressure relief valve is installed in this dual purpose water heater that is...

Page 24: ...operates A condensate trap and flexible drain pipe comes factory installed inside each water tank The condensate trap must be primed before operation to prevent exhaust gases from entering the buildi...

Page 25: ...cleaning be sure to check for any leaks of condensed water or flue gas Space Heating This water heater is suitable for water potable heating and space heating Piping and components connected to the wa...

Page 26: ...INSTALLATION INSTRUCTIONS 22 3 6 Schematic of Piping Installation...

Page 27: ...INSTALLATION INSTRUCTIONS 23...

Page 28: ...connections and re test Always purge the gas line for any debris before connecting to the water heater gas inlet Never use an open flame to test for gas leaks as property damage personal injury or dea...

Page 29: ...y other voltage to this FLOWMAX Combination Water Heater This will damage the combination water heater and void the warranty Do not disconnect the power supply when the unit is in normal operation If...

Page 30: ...few fundamental rules must be observed Do not touch the appliance with damp or wet parts of the body or when barefoot Do not pull on the electric wires Do not allow the appliance to be used by childr...

Page 31: ...moved connect the wires to the terminal board B as follows Connect the ground wire normally coloured green yellow to the terminal marked with the ground symbol Connect the neutral wire normally colour...

Page 32: ...Make Up Air Will Damage the Unit Recommend not to operate the combination water heater in an area that is or will be under construction or renovation The FLOWMAX warranty will not cover damage and pre...

Page 33: ...C or ABS FLOWMAX 3 Diam 100 ft Natural Gas Schedule 40 PVC CPVC PVC CPVC or ABS FLOWMAX 3 Diam 100ft Natural Gas Schedule 40 PVC CPVC PVC CPVC or ABS Equivalent Lengths Reduce the maximum vent length...

Page 34: ...INSTALLATION INSTRUCTIONS 30...

Page 35: ...INSTALLATION INSTRUCTIONS 31...

Page 36: ...INSTALLATION INSTRUCTIONS 32...

Page 37: ...INSTALLATION INSTRUCTIONS 33...

Page 38: ...INSTALLATION INSTRUCTIONS 34...

Page 39: ...r heater complies with the data plate 120 V 60 Hz and that the live neutral and ground wires are connected properly Also make sure that the ground connection is sound Check that the gas supply is corr...

Page 40: ...runs freely Check that the plug of the air vent valve has been slackened slightly to allow air to escape from the system fig 1 Open the main domestic water supply valve Open the filling tap R fig 2 Un...

Page 41: ...l may be added to the system water to protect the system Please adhere to the specifications given by the antifreeze manufacture Do not use automotive silicate based antifreeze Please observe that the...

Page 42: ...order to eliminate all the air from the pipes To repeat the operation wait approximately three minutes before re attempting to light the water heater To reset the water heater Switch off switch 1 see...

Page 43: ...mospheric not premix FLOWMAX 90 FLOWMAX 120 FLOWMAX 170 152 Zone management board activation 00 01 Off On 163 Telephone control activation 00 01 Off On 17 Minimum fan speed setting 55 Hz Natural Gas 5...

Page 44: ...ssed Wait for PL 0 to appear on the display 3 Release buttons and 4 Keep button S pressed and use button to select the parameter to modify 5 Release button S then re press and release it The display w...

Page 45: ...value of the parameter 00 natural gas 01 propane 7 Press and release button S to confirm The parameter number 2 will appear on the display 8 Switch off the appliance and switch it back on again to ren...

Page 46: ...n default 2 7 Press and release button S to confirm The parameter number 5 will appear on the display 8 Switch off the appliance and switch it back on again to render the new parameter operative PARAM...

Page 47: ...5 min The default value is 18 90 1 5 min 7 Press and release button S to confirm The parameter number 8 will appear on the display 8 Switch off the appliance and switch it back on again to render the...

Page 48: ...SYSTEM 6 If the system is fitted with zone valves set the parameter at 01 If a remote control is installed an extra interface board must be installed to control the zone valves Then set the parameter...

Page 49: ...the new parameter operative PARAMETER 19 MINIMUM FAN SPEED SETTING CENTRAL HEATING MODE 6 Use buttons o to modify the value of the parameter between min 33 max value of parameter 18 The default value...

Page 50: ...pliance and switch it back on again to render the new parameter operative PARAMETER 22 FAN FREQUENCY VALUE DISPLAY 6 Use buttons o to modify the value of the parameter 00 Off 01 On If parameter value...

Page 51: ...60 50 40 30 20 10 0 Natural gas G20 L P G G31 Table no 1 CO2 Values Gas type CO2 Natural gas G20 9 18 Liquid Propane Gas G 31 10 3 Table no 2 Frequency Gas type Minimum Hz Maximum Hz Natural gas G20 5...

Page 52: ...ris is visible on the burners remove and clean with a vacuum cleaner All electric motors are permanently lubricated and do not need oiling Remove the combustion air blower and clean wheel and housing...

Page 53: ...eck the pre fill pressure of the expansion tank see expansion tank rating plate For safety reasons periodically check the integrity and operation of the exhaust system Check that the connection to the...

Page 54: ...ight control panel support brackets see fig 5 and pull them outwards at the same time rotating the panel downwards Unscrew the four fixing screws see fig 6 and remove the panel back piece 6 5 Flushing...

Page 55: ...n the radiators starting with the highest and moving down the system to the lowest When the system has been drained close the radiator breather valves and the drain valve If only the water heater need...

Page 56: ...he ceramic fibre protection from the bottom of the heat exchanger Check that the burner is not affected by deposits scaling or excessive oxidation Check that all the holes in the burner are free Clean...

Page 57: ...check for any leaks from the joints Part replacement Ignition and or flame ionization electrodes see fig 2 Un Plug the electrode wires Slacken the fixing screws Remove the electrodes When fitting the...

Page 58: ...he shut off valves and fill the central heating circuit Then restart the appliance remembering to discharge any air that may be trapped in the system Gas valve see fig 2 Disconnect the joints and remo...

Page 59: ...reverse order Switch on the electricity water and gas supplies and check the soundness of the joint by measuring the CO2 levels Expansion tank see fig 2 Close the shut off valves and drain the central...

Page 60: ...ing circuit of the water heater Unscrew the fixing screws securing the transparent cover of the diverter valve and remove the cover Unscrew the four fixing screws and remove the diverter valve body an...

Page 61: ...ted circuit board correspond to an instantaneous type water heater fed by natural gas When replacing the modulation circuit board check the Minimum heating flow rate Parameter 19 and Max Heating power...

Page 62: ...return pipes Remove the support brackets and pull out the heat exchanger Remove the regulation sensor from the old heat exchanger and refit it together with the two condensate drainpipes to the new o...

Page 63: ...FAN type RG 128 N L yellow green fusibile 2A brown green light blue brown light blue brown orange orange light blue light blue brown white light blue black red black orange orange Heating D H W brown...

Page 64: ...When the wires have been connected place plate A back to position and then the front case panel Connecting the outside temperature sensor Option Connect the wires to the terminal board inside the inst...

Page 65: ...remote controller wires When the wires have been connected place plate A back to position and then the front case panel Connecting the remote controller and the telephone control option Connect the wi...

Page 66: ...one valve management option remote controller board Remote control and zone valves wiring For the installation of a zone valve p c b it is necessary to access the main p c b for electrical connection...

Page 67: ...INSTRUCTIONS 63 REMOTE OPEN THERM Telephone control Terminal block Outside temperature sensor option Zone valve management option remote controller board Remote control zone valves and telephone cont...

Page 68: ...the correction are reported in figure 1 The selection of the compensation curve is determined by the maximum delivery temperature Tm and the minimum outdoor temperature Te N B The y axis values of the...

Page 69: ...INTENANCE INSTRUCTIONS 65 M2 FILLING LOOP REMOTE DHW CYLINDER FLOW REMOTE DHW CYLINDER RETURN MAX LENGHT 8 mt HOT WATER SENSOR LEAD PRINTED CIRCUIT BOARD CVI M SM20021 6 9 D H W Sensor connection Fig...

Page 70: ...SWITCH k REPLACE PART l CHECK FLUE GAS DUCTS m CHECK CABLE E03 FLUE SAFETY THERMOSTAT n THERMOSTAT BROKEN o THERMOSTAT CABLE DICONNECTED p THERMOSTAT LOCK OUT HIGH FLUE TEMPERATURE n REPLACE PART o C...

Page 71: ...ing 08 Frost Protection Central heating circuit The function is activated when the heating sensor senses a temperature of 5 C The water heater operates at minimum gas pressure with the 3 way diverter...

Page 72: ...FLOW CHART 68...

Page 73: ...FLOW CHART 69...

Page 74: ...FLOW CHART 70...

Page 75: ...FLOW CHART 71...

Page 76: ...FLOW CHART 72...

Page 77: ...FLOW CHART 73...

Page 78: ...FLOW CHART 74...

Page 79: ...FLOW CHART 75...

Page 80: ...FLOW CHART 76...

Page 81: ...TION ELECTRODE 35032LA IONISTATION ELECTRODE 36072LA VENTURI MINIFOLD RK50 57KW 36075LA GAS VALVE UL CSA 37033LA FAN RG 128 1300 UL CSA 59015LA WATER PRESSURE SWITCH PC 5411 BRASS 59020LA AIR PRESSURE...

Page 82: ...X EPDM ORM 14X30 10 15 43151LA BY PASS REGULATOR EPDM O RING 1 16 43159LA WASHER EPDM 80 SH M PLEX 16x24x2 5 3 4 1 17 43208LA WASHER 23x30x3sp EPDM 80sh 1 1 18 43248LA O RING 4081 EPDM 18 68X3 53 70SH...

Page 83: ...t heavy calcification lime deposits minerals and or other waterborne build up in the plate heat exchanger or corrosion due to chemical anti freeze additive is not considered defects in workmanship and...

Page 84: ...include expenses of inspection obtaining substitute goods transportation etc Consequential damages include injury to persons or property inconvenience or other consequential damage resulting from a br...

Page 85: ...________________________________________________ City______________________State Province________________ Zip Postal Code___________ Phone No ____________________________ Fax__________________________...

Page 86: ...ith the part request Sold To Address Phone Fax Item Requested Water Heater Model No Water Heater Serial No Date of Purchase Date of Start Up Comments Credit will be issued upon receipt of completed fo...

Page 87: ......

Page 88: ...FLOWMAX Technologies 209 Citation Drive unit 5 6 Concord Ontario L4K 2Y8 Tel 905 264 1414 Fax 905 264 1147 E mail info flowmaxtechnologies com Web Site www flowmaxtechnologies com...

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