Installation and Service Manual - Co
Contents
1. 01563 Side Cover 01564 Outdoor Temperature Sensor 01591 Heat Exchanger 4 kW 240V 01565 Heat Exchanger 6 kW 240V 01566 Heat Exchanger 8 kW 240V 01567 Heat Exchanger 12 kW 240V 01568 Heat Exchanger 14 4kW 240V 01569 Inlet Connection Pipe 01570 Pump Pipe EKCO LN2UL 01571 Power Board ZM 60 w o pipe 01572 Inner Pipe of Power Board 01573 Outlet Connection Pipe 1 01574 Outlet Connection Pipe 2 01575 Safety Valve Pipe 01576 Control Panel Main Circuit Board 01577 Case 01578 Nipple 3 4 01579 Nut 01580 Nut G 3 4 01581 Connection 01582 Sleeve 01583 Panel ZIO 50 01584 Pump Wilo Star S21 U15 130 PR3 01585 Apollo Safety Relief Valve 30 psi 3 4 01586 Thermal Safety Cut Out 60T X25 90 05 Thermodisc 01587 Contactor HVVY2XQ04GG Hartland 01588 Transformer 4000 09AW 18AE999 01589 Glass Fuse Connection 16A 01590 Time delay Glass Fuse 6 3 x 32mm 2A 01592 Connector VC05 0046 01593 Holder KU 2 color Grey 01594 Thermal Cut Out auto reset 36T 01601 Return Temperature Sensor NTC 01294 Magentic Filter F Mag 3 4 01195 Differential Pressure Relief Valve 00853 Expansion Vessel 01339 Flow Sensor Huba Control www NextGenboiler com 18 Phone 844 227 9977 Limited Product Warranty Kospel S A warrants and WH Response LLC carries out the NextGen Boiler to the original purchaser to be free from manufacturing defects in materials and workmanship at the location of the original inst2. 10 Re fasten the screws on bottom 2 and top 1 to hold front door in place www NextGenboiler com 10 Phone 844 227 9977 Control Panel The control panel consists of two working areas the signaling area and control buttons The user can select the following working modes winter mode heating mode or summer mode stand by mode Utilize the push button arrows to scroll through the different working parameters of the boiler The control panel will automatically switch to main view if no buttons are pressed within 1 minute After learning the indicators proceed to initial startup section The control panel allows the user to identify flow rate GPM the inlet and outlet operating temperatures and the Btu h of the boiler at any given time It will also aid in identifying any faults which may occur by displaying the fault codes Indicators X 100 Btu h British thermal units per hour psi Pounds Square Inch pressure level gpm Gallons minute or Flow rate x100BTU h F Temperature Fahrenheit AO VC Buttons eda Boiler power Up and down selection Scroll option FAILURES INDICATION INDICATOR STATUS DETAILS EEE EEE Message on electronic Data record error aJ display Parameter out of range or a failed temperature sensor Instructions for the user Heating Mode Initial Start up 1 To set in the heating mode press the power button
3. 0 8 1 3 1 8 2 3 2 8 3 3 3 8 4 3 4 8 Flow gpm www NextGenboiler com 4 Phone 844 227 9977 NextGen Boiler Mounting Clearances ee a geo boiler depth EE 6 2 3 16 arike Ss Flow Qutlet Return Inlet ATTENTION INSTALLER A After reading instructions please keep this manual with the boiler for future reference Affix the plastic holder to the outside of the boiler and insert manual in this pocket Instructions for the installer www NextGenboiler com 5 Phone 844 227 9977 Piping Arrangement Typical radiant floor heating application 0 DI 2 additional expansion tank if needed __ SZ Instructions for the installer NextGen Boiler piped in a primary secondary P S configuration Consider 1 P S when higher flow rates are necessary and when the boiler meets the intended heatloss of the hydronic system 1 boiler 2 additional expansion tank if needed 3 low loss header Pa www NextGenboiler com 6 Phone 844 227 9977 Sizing of the NextGen Boiler It is very important to conduct a heatloss analysis of the intended heated space Select the boiler size in kW based on its Btu hr rating that best meets the designed heatloss It is important not to overly exceed the kW sizing as this will lead to unnecessary costs of boiler wiring and materials Consequentially it
4. n Next Gen B O I L E R Installation and Service Manual Congratulations You have purchased the most innovative electric boiler on the market The NextGen Boiler will provide comfort and efficiency for your heating applications for many years to come WH Response LLC USA Distributor Importer UL 6800 Electric Drive CERTIFIED Rockford MN 55373 SAFETY US CA SECURITE US CA Phone 844 227 9977 347788 Fax 763 477 3054 www nextgenboiler com TABLE OF CONTENTS Instructions for the installer Safety Instructions NextGen Boiler Ratings and Specifications Piping Arrangement Sizing of the NextGen Boiler Designed Temperature Differential Circulating Pump Information Plumbing Installation Guidelines Electrical Installation Instructions for the user Control Panel Heating Mode Initial Start Up Winter Mode Heating Mode Summer Mode Stand by Mode Advanced Settings Troubleshooting Care and Maintenance General Boiler View Part List Warranty Information Warranty Registration GO GO Pd Pd Pd GO AR 11 11 12 13 14 15 15 16 17 19 21 This appliance is not intended for use by persons including children with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety Children should be supervised to ensure tha
5. The indicators will show the current working mode of the boiler 2 Set the supply water temperature SWT set point Utilize the right arrow push button to scroll through working parameters of the boiler Highlight the SWT symbol and utilize the up and down arrows to select the temperature that meets hydronic radiant heating application The supply water temperature can be set between 85 140 F Notice the F symbol will light up at the same time when changing temperature 3 If 120 VAC power is connected to the circulating pump turn control panel on and utilize push buttons to scroll to psi indicator Disconnect thermostat wiring connection below control panel This will insure boiler will not operate If pressure is below the 7 psi level the circulating pump indicator will blink Verify pressure psi reading on control panel to achieve desired pressure levels Typical pressure readings should be slightly above the 12 psi expansion tank reading or higher depending on application 15 20 psi recommended 4 For testing turn the thermostat above the room temperature reading This will turn the boiler on After testing return the thermostat to a comfort setting 5 To automatically return to main viewing mode momentarily press the power button The controller will switch over to the main view if you don t push any of the buttons for 1 minute www NextGenboiler com 11 Phone 844 227 9977 Instructions for the user Wint
6. is extremely imperative NOT to undersize the boiler How to choose the correct boiler size Convert BTU to kW by dividing the BTU load by 3 413 Ex 33 513 BTU 3 413 9 81kW Choose a boiler that slightly exceeds this kW requirement by no more than 20 For larger BTU loads consider cascading the boilers together and pipe the system in a parallel configuration as described in the piping arrangement section Note that utilizing propylene glycol freeze protection will reduce the heat transfer and cause the system to be less efficient Under no circumstance should more than a 50 50 ratio of water to propylene glycol be used Consult with radiant system designers for required freeze protection guidelines Designed Temperature Differential Radiant floor heating systems are typically designed for a 10 20 F temperature differential determined by when the heating fluid leaves the boiler and where it enters the radiant heat source i e radiant PEX tubing Circulating Pump Information This boiler is equipped with a Wilo Star S 21 U 15 3 speed circulating pump To determine the speed or setting of the pump confirm with radiant design completed by others and or complete a pressure loss calculation Refer to calculations of loop lengths to determine proper speed The pump will automatically operate based on a thermostat call for heat After the thermostat temperature set point has been reached the pump will continue to circulate
7. other than intended as noted above 7 Incorrect product sizing for the application 8 Boilers not installed according to manufacturer s specifications and installation instructions as noted in the product installation manual 9 Products that have internal wiring or parts altered or removed bypassing of safety circuits modifications of parts or circuit boards or mechanical water flow changes not authorized in writing by the manufacturer 10 Unusual wear and tear of the product 11 The name plate decal and the UL certification label including serial number are either defaced or destroyed 12 Damages resulting in shipment or handling by the freight carrier It is the receiver s responsibility to claim and process freight damage caused by others Replacement parts under this limited warranty do not extend the warranty term or period Kospel S A and WH Response LLC are not bound by representatives installers warranties or promises made by others beyond the terms of this limited warranty In no way shall Kospel S A or WH Response LLC be responsible for any installation incidental or consequential damage Kospel S A and WH Response LLC or an authorized representative from either has the right to inspect any reported defective products and or parts Materials are to be returned at owner s expense This warranty gives you specific legal rights and you may also have other rights which vary from states to state www NextGe
8. pressure press A or STATUS PUMP VIEW Circulation pump is active In summer mode heating elements turned off The circulating pump will operate for 15 minutes once every 24 hours each day www NextGenboiler com 13 Phone 844 227 9977 Instructions for the user Instructions for the user Advanced Settings For advanced settings switch the control panel to stand by mode First press and hold power button for 3 seconds and release Then press and hold the D button and immediately press the power button To select parameter press DA or S7 buttons to enable you to change the values Press and hold the power button to exit and save the settings Indicator Status Parameters E DETAILS display value 1 4 14 Boiler power enter the power amount kW as indicated on identification label This value is factory preset 2 Aln Working mode of pump PA automatic Pn manual continuous duty of pump 3 1 2 3 Maximum quantity of active heating elements 4 psi off on Installation pressure control 30 70 Outside temperature above which boiler will not heat case of boiler s 5 failure or lack of outside temperature sensor function is not active off Function not active 6 1 9 Selection of heating curves see diagram Outdoor comp
9. Inlet temperature OUTLET TEMPERATURE VIEW Outlet temperature FLOW VIEW gpm Flow rate gallons min PRESSURE VIEW psi Pressure level pounds square inch ENERGY CONSUMPTION VIEW X100 BTU h Current energy consumption BTU h OUTDOOR TEMPERATURE VIEW r e H3 Outdoor temperature In case of lack of outdoor temperature sensor preview is not available www NextGenboiler com 12 Phone 844 227 9977 To use the outdoor compensation option refer to outdoor compensation graphs on page 14 The outlet temperature is adjusted depending on the outdoor temperature For example if it s cold the outlet temperature should increase but if outdoor temperature is warmer the outlet temperature should be adjusted lower Outdoor compensation option is based on heating curves see Advanced Settings User can choose from one of the 9 curves available declaring the desired thermal efficiency of the boiler One method of selecting the correct curve is as follows The first step is to determine the temperature on the horizontal axis outside temperature from O F to 70 F which at the present time most frequently occurs for example 30 F Then run in a straight line up to the height on the value of the temperature on the vertical axis which we want to obtain in the hydronic system In our example at 30 F outside the building we want to have 115 F for the heating see the diagram on
10. air heat applications Temperature adjustments can be made on control panel to meet these applications requiring desired water temperatures between 85 140 F www NextGenboiler com 3 Phone 844 227 9977 Instructions for the installer Instructions for the installer NextGen Boiler Ratings and Specifications Boiler Name NextGen 4 NextGen 6 NextGen 8 NextGen 12 NextGen 14 4 Boiler Type EKCO 4 EKCO 6 EKCO 8 EKCO 12 EKCO 14 4 kW 4 6 8 12 14 4 Boiler Rated Power Btu h 13 652 20 478 27 304 40 956 49 147 Voltage V 240 Rated Current A 16 66 25 0 33 3 50 0 60 0 1 1 2 Breaker Quantity Amps A d A 30 amp 40 amp 40 amp Heating Elements Quantity 3 Element Resistance each Q 43 3 28 8 21 6 14 4 12 0 Circulating Pump Wilo Star S 21 U 15 3 speed Circulating Pump Voltage V 120V 60Hz Circulating Pump Amps A 97 Speeds 3 Fuse Rating 2 0 amp Operating Temperature Range 85 140 Inlet Outlet Pipe Thread 34 Internal Thread Expansion Vessel 14 psi Gallon 1 6 Safety Relief Valve Rating psi 30 Maximum Pressure psi 30 Minimum Pressure psi 7 Weight Lbs 68 5 Dimensions L x W x D Inches 28 x 17 x 9 7 8 Minimum Flow Rate gpm 1 1 1 32 e Disposable Available Pump Head 16 14 s 12 de 10 D I Setting 3 Setting 2 E Setting 1 4 2
11. allation except as noted below for a period of 26 months from the date of manufacture The NextGen Boiler must have been purchased from an authorized NextGen Boiler distributor A Return Materials Authorization RMA form must be completed in full and returned along with the defective component s freight pre paid Special labor allowance If any component or parts fail due to manufacturing defects within the first ninety days 90 of installation and the repair is diagnosed by a licensed contractor reimbursement of reasonable labor cost can be requested through WH Response LLC Request for labor allowance must be completed on an RMA form A copy of the original installation invoice and a written record showing the date of service from a licensed contractor must be provided This warranty does not cover normal maintenance transportation installation or labor charges for the replacement part or components except for special allowances as noted above or any other service calls or labor repairs Exclusions or conditions that void warranty 1 Applications and installations that are in violation of state and or federal codes or statutes 2 Products that have been altered replaced or repaired from original factory condition 3 Damages from improper voltages or power supply wiring or voltage transients or spikes 4 Damages due to natural disaster 5 Component damage due to freezing or water quality conditions 6 Incorrect application use
12. cted parameters alternately and marks it means that the procedure is started The procedure will close automatically and the unit will start normal operation once the minimal flow rate is reached Summer Mode Stand by Mode Important Do not shut off the power supply between heating seasons To set the boiler to summer or stand by mode press and hold power button for 3 seconds When the control panel is switched to summer mode the control panel is off and the stand by mode indicator e remains blinking In this mode the boiler is off but the pump is activated every day for 15 minutes This summer mode protects the boiler and the hydronic heating installation from being blocked and silted up The pump will run every day at the same time when the boiler is switched to summer mode For example if you turn the boiler to stand by mode at 6 p m the timer will activate the pump every day for 15 minutes starting at 6 p m To set the boiler back to winter heating mode press and hold power button for 3 seconds Note In summer mode based on U S national electric rates of 10 kWh the cost of operating the circulating pump for 15 minutes day will equate to approximate usage of 08 month on the highest speed MODE VIEW INDICATOR DETAILS The control panel is off and the stand by mode indicator dot blinks only PRESSURE VIEW Pressure level pounds square inch To check out the installation
13. ect sizing of electrical breakers and size of electric conductor wires Refer to boiler nameplate for current and kW ratings Local electric codes may require an electrical disconnect 5 The circulating pump requires a separate 120 VAC 15 amp electrical circuit Utilize 72 electrical knockout as marked on the left side of cabinet to access circulating pump wiring connections inside boiler Do not combine the high voltage power for circulating pump with any thermostat or off peak low voltage wires An optional secondary pump can be installed in the system for hydronic applications plumbed with multiple circulators and or primary secondary applications Utilize the Pump 2 connections to operate the secondary pump The secondary pump will automatically turn on upon closure of thermostat connections on control panel Spare fuses are taped into TG LINE LINT the inside cover Fuses specified as Time delay Glass Fuse 6 3 x 32mm 2A N www NextGenboiler com 9 Phone 844 227 9977 Instructions for the installer Instructions for the installer 6 Thermostat This boiler can be signaled to turn on from a standard two wire thermostat end switches of an actuating valve or a zone control panel These connections should all be voltage free dry contact Extend wires from thermostat to TT connections on control OP TT T panel using 2 x 18 gauge wires Utilize 72 electrical knockout to left s
14. ensation 0 Manual setting of outlet temperature 7 9 9 Offset of heating curve characteristic F see diagram Offset for outdoor compensation 8 Boiler working time counter in hours Outdoor compensation Offset for outdoor compensation 140 9 E E 120 5 2 S bo E 3 100 E p 6 Se 80 5 ca 60 70 60 50 40 30 20 10 0 70 60 50 40 30 20 10 0 Outdoor Temperature F Outdoor Temperature F www NextGenboiler com 14 Phone 844 227 9977 Troubleshooting A Do not attempt to service this boiler unless you have been trained in all aspects of its functionality and methods to repair Failure to service properly may lead to further damage to components Symptom Reason Action All indicators on control panel are OFF No power to boiler Check for 240 VAC on boiler main connection terminals Reset manual safety high limit Contact authorized service person PSI indicator blinks Insufficient pressure below 7 psi Switch the controller to pressure view and increase system pressure above the minimum required 7 psi level Pressure sensor failure Switch the controller to pressure view if display shows Contact authorized service person indicator blinks Pump is blocked Unblock the pump unscrew the screw on pump housing and move the pump rotor manually Heat does not circulate through the boile
15. er Mode Heating Mode To set in the heating mode press the power button The indicators will show the current parameters of the boiler see control panel MAIN VIEW INDICATOR STATUS DETAILS Heating Status on Thermostat is calling for heat Q off Room set temperature has been reached no call for heating dx Off Peak load control or master appliance mode blinks Outdoor temperature reached a thermal cut off valve see parameter 5 in advanced settings Circulating Pump Indicator on Pump is active proper flow rate of water has been reached e blinks Lack of water flow or insufficient flow of water heating elements off Supply Water Temperature red light Boiler is in heating mode O green light Supply water temperature has been reached in the boiler O off Heating is off Outlet Temperature er 25 Temperature on the outlet of the boiler SUPPLY WATER TEMPERATURE VIEW INDICATOR DETAILS Ron The LED in the first location on the display indicates automatic setting according to the heating E 7 7 curve and offset see parameters 4 and 5 in advanced settings This is active only when the outdoor pe 6 sensor is wired to Text terminals on control panel Manual setting see parameter 4 in advanced settings outlet temperature can be set manually in range 85 140 F Use buttons A and to change the parameter INLET TEMPERATURE VIEW
16. ide of control panel to gain entrance to this connection Install ext thermostat in a location where it will not be influenced by other heat J sources D D 7 Off peak control optional This boiler is equipped with a connection normally closed to receive a utility signal for off peak denoted by on the control board Ensure the interconnection from utility radio receiver is voltage free dry contact Consult with local utility on questions with off peak installations Keep blue white jumper wire in place if not connected to a utility radio receiver 8 Outdoor compensation The boiler can utilize an outdoor sensor T stat for outdoor compensation capability Install the outdoor sensor preferably on the north side of the building Keep the outdoor sensor SO away from any sources of heat Refer to Advanced Settings on page 14 to set proper heat curve If no outdoor sensor is wired to the Text terminals on the control panel the boiler will work in normal compensation operation A 9 Final check Verify all electrical connections are tight Loose connections can cause premature failures of electrical components Once you have finished the above procedures and before starting the boiler understand the control buttons and indicators on the control panel in the following page
17. istance on elements Control panel set up failure Insure control panel is set up for correct kW and number of heating elements through advanced settings Care and Maintenance 1 In order to protect flow sensor located within the boiler it is imperative that the pre installed magnetic filter is removed and cleaned at least annually Failure to clean out this filter could increase contamination of the boiler by system residue 2 Periodically check system pressure Contact authorized service person to make adjustments only www NextGenboiler com 15 Phone 844 227 9977 Instructions for the user Instructions for the user General Boiler View www NextGenboiler com 16 Phone 844 227 9977 Part List Ge Beard EO m A Geu Ubera UM eet LII ELE 11 Wiring Entrance T Manual Reset High Limit Device 24 Control Panel 8 Heating Element 9 Pump Flow and Outlet Temperature Sensor 4 Pressure Relief Valve 10 By Pass Valve 5 Pressure Sensor aile Water Inlet 6 Magnetic Filter 12 Water Outlet www NextGenboiler com 17 Phone 844 227 9977 Instructions for the user CAL Nlextf emm wl B NextGen Boiler Parts R
18. n products for hydronic heating systems that are non toxic and corrosion resistant The propylene glycol mix shall not exceed 50 by volume AA Under no circumstance should methanol or ethylene glycol automobile antifreeze be added to the boiler system as this may damage internal components Insure purging of all air throughout boiler system and related components This boiler requires a minimum pressure of 7 psi in order to operate Pressure levels for hydronic systems typically are above the pre charged expansion tank pressure level 12 psi If additional pressure gauges are installed verify reading as described on item 7 The boiler is equipped with a pressure differential bypass valve This allows the minimum flow rate to pass through the boiler when all zone valves are closed The valve will also help reduce noise issues upon closing of zone valves or actuators To adjust Turn differential bypass valve clockwise until it stops Turn on all heating zones and let them heat for a couple of minutes Caution piping can get hot quickly upon opening the valve Slowly open the bypass valve by turning in a counter clock wise direction Stop turning once an increase in temperature is felt on the outlet side ofthe valve This is referred to the tipping point After reaching the tipping point continue to turn the valve one complete turn The valve is now set to bypass excess flow as zone valves close Set the thermostats to normal set temperature
19. n the outlet of the safety valve Connect and extend 34 copper piping from relief valve and terminate at least 6 from the floor or floor drain This boiler is equipped with a 194 F manual reset safety high limit device The reset button is clearly located in the center of this device This boiler will not operate below a 7 psi water pressure level This boiler is equipped with a Wilo circulator pump After thermostat temperature set point has been reached the pump will continue to circulate water for 3 additional minutes as part of a post purge sequence to push heated water away from heat exchanger This boiler is equipped with a differential pressure relief bypass valve It allows the system to keep minimal flow of heating water through the boiler and reduce noise in the installation when equipped with thermostatic zone valves Do not drain the water from the boiler after the heating season In summer do not shut off the power supply 120 VAC and 240 VAC and leave the controller in stand by summer mode between the heating seasons The boiler is equipped with an exercise timer control feature that allows the circulating pump to operate 15 minutes each day and will ensure longer operation the circulating pump and will help to eliminate the buildup of debris See section Summer mode stand by mode on page 11 Boiler is pre set by the manufacturer to work with hydronic radiant floor radiant ceiling hot water baseboard and water to
20. nboiler com 19 Phone 844 227 9977 www NextGenboiler com 20 Phone 844 227 9977 Warranty Registration WH Response LLC NextGen Boiler Warranty Registration 6800 Electric Drive Rockford MN 55373 Fax 763 477 3054 or by Email info NextGenboiler com NextGen Boiler Warranty Registration Name Address City State Zip code Telephone Model Serial Installer Name Telephone Date Installed Warranty registration must be filled out completely and mailed or emailed within Sixty 60 days of installation order to gain warranty coverage www NextGenboiler com 21 Phone 844 227 9977 www NextGenboiler com 22 Phone 844 227 9977 US 031C_f 561
21. om of the boiler From there it j 9 be connected any pressure gauge to check the pressure or pump to refill the air inside the tank The boiler is equipped with an ASME approved 30 psi automatic safety pressure relief valve Install the necessary length of 4 copper piping from the relief valve to within 6 of the floor to prevent personal e E injury or water damage to surrounding area Shrader valve Observe inlet return piping blue and outlet supply feed piping red connections Install full way shut off valves below inlet and outlet connections before plumbing the boiler to the hydronic heating system DO NOT reverse these connections to the radiant supply and return manifolds Optional temperature or pressure gauges can be installed below the boiler if desired Install a boiler drain valve s as necessary to aid in filling purging and draining of unit and the related system components Water supply feed or pressure reducing valve can be installed to comply with local building codes Local codes may require a back flow preventer called a check valve when installing a fixed domestic water supply line to the boiler When possible fill the boiler and hydronic system with treated water i e soft or distilled water This will substantially extend the life of the heating elements and reduce sediment buildup Freeze protection additives can be added Only use propylene glycol type freeze protectio
22. page 14 so we get exactly the heating curve defined as 4 If the intersection point of selected temperatures is not placed on the curve we choose the closest For example 30 F outdoor temperature and the desired 110 F for hydronic system can lead to a selection of curve 3 or 4 It should be checked periodically whether the choice was correct if not another curve should be used The heating curve offset If in wide range of outdoor temperatures the boiler is not able to maintain the desired indoor temperature it s too cold or too warm the heating curve chosen before should be shifted offset in range 9 F to 9 F available in options on control panel If the indoor temperature is too warm the heating curve should be shifted down and vice versa refer to the diagram on page 14 Special start up procedure when the system is filled with an antifreeze solution A flow rate reading error may occur if you start up the unit at low ambient temperature This error may occur because the physical properties of antifreeze solution If the indicator flickers and the cut off valves are opened you have to close OP and TT contacts which will automatically start the special start up procedure As a result the medium will be warmed up to temperature that enable you to read the flow rate correctly The duration of procedure depends on both the installation capacity and the temperature inside the installation When a control panel display shows sele
23. r boiler is blocked Air bubble is caught in system purge the installation pump and boiler Check 1 amp fuse on control panel Failure of pump or flow sensor Check power supply for circulating pump a failure of pump or flow sensor Contact an authorized service or the seller Circulator indicator blinks Heating status is off Lack of water flow 2 1 GPM min No thermostat connection Adjust flow characteristics as needed Insure thermostat is calling for heat and is above ambient temperature set point Verify connections on thermostat Failure of control board Check fuse on control panel glass fuse 6 3 x 32mm 2A Heating status blinks Off Peak signal no heat Electric utility off peak control and Inlet temp blinks A failure of inlet temperature sensor boiler in failure condition Check connection or replace thermistor sensor 2 and Outlet temp blinks A failure of outlet temperature sensor or loose connection Check connections Replace HC DN 15 sensor Boiler does not heat Failure of cylinder temperature sensor Contact authorized service person for replacement of cylinder temperature sensor or thermostat A failure of control panel Contact authorized service person EEE message on display Data record error Contact authorized service person Insufficient heat output Heating elements Check for res
24. s Proceed to the Electrical Installation www NextGenboiler com 8 Phone 844 227 9977 Electrical Installation Electrical Wiring Diagram Boiler Boiler cover basis CTRL PUMP 1 PUMP 2 LINJE o L Pump2 optional external temperature sensor temperature termostat o L Pump1 oo off peak OP TT Text P Control panel F2 Manual Reset Trip Free D Auto Reset SPST Heat Thermal cut out 240VAC DD Flow Tout Tin Pres E 1112 CTRL Power unit Pressure sensor Temperature sensor Tin Flow amp temperature Tout sensor A For supply connections use 10 awg or larger wires suitable for at least 167 75 C o 1 All electrical work should be completed in accordance to local or state electrical and building codes c 5 2 This boiler must be electrically grounded in accordance with National g Electrical Code ASNI NFPA70 or local codes d O 3 This boiler operates with 240 VAC single phase electrical power 9 d source 4 Connect the boiler to the electrical service using A COPPER WIRE ONLY Tighten connections by using a 3 16 Hex key tool Conform to local electrical codes for corr
25. t they do not play with the boiler appliance Consider all piping and electrical connections before selecting boiler location Failure to follow the instructions in this manual could result in severe personal injury death or property damage Safety Instructions 10 11 12 13 14 Read and strictly follow the installation and operating instructions to ensure a longevity and reliable boiler operation This manual provides general installation guidelines Your installation must comply with ALL applicable local codes AA Always have a qualified electrician perform electrical wiring Manufacturer will not be held responsible for faulty installations which are performed by unqualified electricians An efficient electrical installation which has been completed in accordance with the binding norms of electric installation Electric installation should be equipped with electric circuit breakers and other solutions which will ensure disconnecting the boiler from the source of power All installation work must be performed when the power and water supply is disconnected from the main electrical panel This boiler must be installed vertically and on an even wall surface with access to plumbing connections on bottom Any associated components i e boiler water tubing valves manifolds etc must be flushed before boiler installation This boiler is equipped with a safety relief valve Do not install any barrier fitting or valve o
26. water for 3 additional minutes as part of a post purge operation to push heated water away from the heat exchanger This boiler is also equipped with an additional pump relay This will aid the installer if there is any need to pipe the systems with a secondary circulating pump to overcome pressure drop due to piping or hydronic tubing design This is commonly referred to as primary secondary applications described in the piping arrangement section www NextGenboiler com 7 Phone 844 227 9977 Instructions for the installer Instructions for the installer 10 Tig 12 13 14 Plumbing Installation Guidelines Remove outer screws at the bottom and at the top of boiler and carefully open the front cover The boiler is wall hung and must be installed in a vertical position where plumbing connections are located at the bottom Utilize key holes slots to hang the boiler Refer to diagram on clearances page 5 The boiler is provided with a 3 8 air vent located on top of the heat exchanger It is designed to collect and remove air Ensure plastic drain tubing remains in place and exits the boiler in the lower right corner The boiler is equipped with a pre charged flat expansion tank located on the back housing of the boiler Expansion tank has a Shrader valve which location s is shown on the figure This figure presents the bottom view of the boiler Access to the valve is i E only from the bott
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