Laars NeoTherm NTV1000 - Install and Operating Manual Bedienungsanleitung

Installation and Operation Instructions Document 1247H2344800-WARNINGIf the information in this manual is not followed exactly, a re or explosion ma

LAARS Heating SystemsPage 6Section 2LOCATING THE UNIT2.1 Locating the UnitThe NeoTherm unit may be installed indoors or outdoors. The unit may only

LAARS Heating SystemsPage 9611.2.7 BlowerThe combustion air blower is a high-pressure centrifugal blower with a variable speed motor. The speed of t

NeoTherm Boilers and Water HeatersPage 97NT size (mbtu) Kit Number1000 CA006207Table 18 - Gas Conversion Kit11.2.10 Natural/Propane Gas ConversionNeo

LAARS Heating SystemsPage 98Section 12TROUBLESHOOTING12.1 Potential Setup and Synchronization ProblemsBecause the NeoTherm 1000 uses a sophisticate

NeoTherm Boilers and Water HeatersPage 9912.1.2 Flap Valve Status CheckEachboilerincludestwoburners,andeachburnerhasaapvalve.SeeFig.

LAARS Heating SystemsPage 100 Correct the cause of the problem, and press the button on the screen to clear the Hold.2. If a serious problem contin

NeoTherm Boilers and Water HeatersPage 101Fig. 128 – Lockout History Screen The most recent lockouts appear at the top of the list. Any lockout that

LAARS Heating SystemsPage 10212.3 Troubleshooting TableThis table includes a listing of the faults that might be generated by the controllers, and d

NeoTherm Boilers and Water HeatersPage 103Code Description L or HProcedure11 Internal fault:InvalidburnercontrolstateagL Internal fault1. Reset m

LAARS Heating SystemsPage 104Code Description L or HProcedure26 Internal fault:StaticamerippleH Internal fault1. Reset module2. If fault repeats,

NeoTherm Boilers and Water HeatersPage 105Code Description L or HProcedure53 AC input phases reversed L 1. Check the module and display connections.2.

NeoTherm Boilers and Water HeatersPage 7shall be of the same cross-sectional area as the free area of the openings to which they connect.Method 1: Two

LAARS Heating SystemsPage 106Code Description L or HProcedure79 Outlet high limit H or L1. Check wiring and correct any possible errors.2. Replace th

NeoTherm Boilers and Water HeatersPage 107Code Description L or HProcedure97 Internal Fault: A2D mismatch. L Internal Fault.1. Reset module.2. If faul

LAARS Heating SystemsPage 108Code Description L or HProcedure108 Flame lost in run L 1. Check main valve wiring and operation - correct any errors.2.

NeoTherm Boilers and Water HeatersPage 109Code Description L or HProcedure129 Fan speed failed during preignition H or L1. Check wiring and correct an

LAARS Heating SystemsPage 110Code Description L or HProcedure153 Combustion Pressure Off H or L1. Check wiring and correct any errors.2. Inspect the

NeoTherm Boilers and Water HeatersPage 111Code Description L or HProcedure159 Main valve OFF L 1. Check Main Valve terminal wiring and correct any err

LAARS Heating SystemsPage 112Code Description L or HProcedure178 Safety relay ON at safe start check L Internal Fault.1. Reset module.2. If fault rep

NeoTherm Boilers and Water HeatersPage 113Code Description L or HProcedure196 Invalid ignition source setting L 1.ReturntoCongurationmodeandrec

LAARS Heating SystemsPage 114Code Description L or HProcedure210 Invalid Postpurge time setting L 1.ReturntoCongurationmodeandrecheckselected

NeoTherm Boilers and Water HeatersPage 115Code Description L or HProcedure221 UnconguredDHW(DomesticHotWater) high limit setpoint settingL 1.Re

LAARS Heating SystemsPage 8Method 2: One permanent opening, commencing within 12” (300 mm) of the top of the enclosure, shall be permitted. The openi

LAARS Heating SystemsPage 116Code Description L or HProcedure232 Invalid Pressure sensor type setting L 1.ReturntoCongurationmodeandrecheckse

NeoTherm Boilers and Water HeatersPage 11712.4 Diagnostic Tests and Input/Output IndicatorsTwo kinds of screens are grouped together in this section

LAARS Heating SystemsPage 118Fig. 135 – Pump Test12.5 Lead/Lag Slave DiagnosticsThe control system includes a diagnostic screen that lists some info

NeoTherm Boilers and Water HeatersPage 11912.7 AnalysisThe control system includes an Analysis branch that can display the behavior over a period of t

LAARS Heating SystemsPage 120Burner Ignition SequenceHere is the start-up sequence following a Lead Lag (LL) Central Heating request: 1. The thermos

NeoTherm Boilers and Water HeatersPage 121During the Initiate Period:• AllofthechecksmadeunderSynchronization,plus:• LocksoutifA/Clinepo

LAARS Heating SystemsPage 12213.2 Parts ListKey No. Part No. Description1 10J3038 BRACKET, PIPE, NT 10002 10J1270 BRACKET, ANGLE, STIFFENING, CONT

NeoTherm Boilers and Water HeatersPage 123Key No. Part No. Description37 10J1238 BRACKET, LEVELING, HEX.38 10J1203 CHANNEL, BASE39 10J1204 CROSS BR

LAARS Heating SystemsPage 124Key No. Part No. Description70 E2340000 SENSOR, TEMPERATURE, STACK, 1/4” NPT71 10J5056 BLOWER ASSY, LOWER72 10J5055

NeoTherm Boilers and Water HeatersPage 125Key No. Part No. Description119 KM004400 HIGH LIMIT KIT, NT 1000120 KM004300 LWCO KIT, NT 1000121 R20730

NeoTherm Boilers and Water HeatersPage 93.2 Venting WARNINGSelection of improper vent materials for installations that are installed in closets, or w

LAARS Heating SystemsPage 126Fig. 140 - Machine Frame and Rear Panel13.3 PARTS ILLUSTRATIONS

NeoTherm Boilers and Water HeatersPage 127Fig. 141 - Front Panel and Covers

LAARS Heating SystemsPage 128Fig. 142 - Burners and Combustion Chambers

NeoTherm Boilers and Water HeatersPage 129Fig. 143 - Heat Exchanger ComponentsFig. 144 - Burner Detail

LAARS Heating SystemsPage 130Fig. 145 - Electronic Components

NeoTherm Boilers and Water HeatersPage 131Fig. 146 - Condensate TrapFig. 147 - Control Bezel

LAARS Heating SystemsPage 132Fig. 148 - Flow Switch

NeoTherm Boilers and Water HeatersPage 133This page intentionally left blank.

800.900.9276 • Fax 800.559.1583 (Customer Service, Service Advisors)20 Industrial Way, Rochester, NH 03867 • 603.335.6300 • Fax 603.335.3355 (Applicat

LAARS Heating SystemsPage 10The condensate drain must be installed so as to prevent the accumulation of condensate. When a condensate pump is not us

NeoTherm Boilers and Water HeatersPage 11*When vent terminal is less than 10 feet (3 m) horizontally from a forced air inlet, the terminal must be at

LAARS Heating SystemsPage 122. Vent terminals for condensing appliances or appliances with condensing vents are not permitted to terminate above a p

NeoTherm Boilers and Water HeatersPage 133. Locate the combustion air terminal so that it cannot be blocked by snow. The National Fuel GasCoderequi

LAARS Heating SystemsPage 14When an existing boiler is removed from a common venting system, the common venting system is likely to be too large for

NeoTherm Boilers and Water HeatersPage 15Section 4 GAS SUPPLY AND PIPING4.1 Gas Supply and PipingGaspipingshouldbesupportedbysuitablehangerso

LAARS Heating SystemsPage 16SCHED 40 METAL PIPE CAPACITY FOR 1.50 SPECIFIC GRAVITY UNDILUTED PROPANENOMINAL PIPE SIZE @ 11” W.C. INLET AND 0.5” W.C.

NeoTherm Boilers and Water HeatersPage 17Section 5PUMP REQUIREMENTS5.1 NeoTherm Boiler Flow and Head Requirements5.2 NeoTherm Water Heater Flow and

LAARS Heating SystemsPage 18The NeoTherm unit’s efciency is higher with lower return water temperatures. Therefore, to get the best low return tempe

NeoTherm Boilers and Water HeatersPage 19Do not use automotive antifreeze. To help prevent freezing, Laars recommends the use of inhibited glycol conc

LAARS Heating SystemsPage 20Fig. 11 - Hydronic Piping — Single Boiler, Multiple Temperature ZonesZoning with circulatorsWater feedcontrolsAir vent4 p

NeoTherm Boilers and Water HeatersPage 21Fig. 12 - Hydronic Piping — Single Boiler, Zoning with Circulators, Indirect DHW Tank with Zone PumpsIndirect

LAARS Heating SystemsPage 22Fig. 13 - Hydronic Piping — Single Boiler with Low Temperature Zones and Indirect DHW TankIndirect tank directly off of b

NeoTherm Boilers and Water HeatersPage 23Fig. 14 - Hydronic Piping — Multiple Boilers, Multiple Temperature Zones, Reverse ReturnZoning with circulato

LAARS Heating SystemsPage 24Fig. 15 - Hydronic Piping — Multiple Boilers, Indirect DHW Off of One BoilerSpace heating zone circuitsSpace heating zone

NeoTherm Boilers and Water HeatersPage 256B.2 NTV Piping RequirementsThe water piping should be supported by suitable hangersandoorstands.Donot

LAARS Heating SystemsSection 1 - General Information ...11.1 Introduction ...

LAARS Heating SystemsPage 266B.3 NTV Cold Water Make-UpThe cold water make-up may be connected to the tank or to the inlet of the boiler as shown in

NeoTherm Boilers and Water HeatersPage 27Fig. 18 - DHW Piping - Two Heaters, Two Vertical TanksNOTES:1. Optional CWMU & recirculation line loca

LAARS Heating SystemsPage 28Section 7ELECTRICAL CONNECTIONS WARNINGThe appliance must be electrically grounded in accordance with the requirements o

NeoTherm Boilers and Water HeatersPage 29Fig. 19 - Electronics Panel LayoutTB5TB2TB1Primary controller(upper burner)Secondary controller(lower burner)

LAARS Heating SystemsPage 307.3 24 VAC Transformer with Integral Circuit Breaker24 VAC is supplied by a transformer mounted on the control panel. Al

NeoTherm Boilers and Water HeatersPage 31Fig. 20 - Ladder Diagram

LAARS Heating SystemsPage 32Fig. 21 - Wiring Diagram

NeoTherm Boilers and Water HeatersPage 33

LAARS Heating SystemsPage 34Section 8USING THE CONTROLS ON THE NEOTHERM 10008.1 Controls and Indicators on the Front of the UnitThere are only a fe

NeoTherm Boilers and Water HeatersPage 35When a password is necessary, the system will present the keyboard screen. See Fig. 25.Fig. 25 - Keyboard Scr

LAARS Heating SystemsSection9–SetupandConguration ...449.1 Review of Lead/Lag Control System ...44 9.1.

LAARS Heating SystemsPage 36Fig. 26 - Numeric Entry ScreenAnyone can view all of the parameters. However, to change most of the parameters, you will

NeoTherm Boilers and Water HeatersPage 372. Press the View Lead Lag button to go to a screen that shows the status of the whole Lead/Lagsystem.See

LAARS Heating SystemsPage 38Fig. 32 - Status Summary Screen Showing Pumps Information Notice the four buttons at the bottom of each Status Summary s

NeoTherm Boilers and Water HeatersPage 39Fig. 35 - Typical Details Screen – Frost ProtectionThelistpresentedhereistoolongtotontoasinglesc

LAARS Heating SystemsPage 40Fig. 37 - Status Summary Page3. PresstheCongurebuttontostartacongurationsessionfortheselectedcontroller.

NeoTherm Boilers and Water HeatersPage 418.8 VericationProcessforSafety-Related Parameters1. When you start to change a parameter that is relate

LAARS Heating SystemsPage 42Fig. 43 - Reset Button on Controller3. Don’t press the Reset button yet. We just want to show you where the Reset butto

NeoTherm Boilers and Water HeatersPage 438.9 Cleaning the TouchscreenThe operator interface includes a cleaning routine for the touchscreen. If the

LAARS Heating SystemsPage 44Section 9SETUP AND CONFIGURATION9.1 Review of Lead/Lag Control System9.1.1 About Lead/Lag OperationThe boilers in this

NeoTherm Boilers and Water HeatersPage 45In either kind of installation, a system sensor is usually used to monitor the demand. The input from this s

NeoTherm Boilers and Water HeatersPage 1Section 1GENERAL INFORMATION WARNINGNeoTherm units must be installed in accordance with the procedures detail

LAARS Heating SystemsPage 46Fig. 51 – Lead/Lag Activity in a Multi-Boiler SystemLow demand -The first burner* insequence fires atless than 65%Firstb

NeoTherm Boilers and Water HeatersPage 47Fig. 52 – Connection Terminals

LAARS Heating SystemsPage 482. Followingthetable,lookupthespecicinstallation jobs for your system in Section 9.4.Thejobsareidentiedus

NeoTherm Boilers and Water HeatersPage 49System Multiple or single boilersSystem or local boiler controlCommon ventSetpoint control 4-20 maModulation

LAARS Heating SystemsPage 50System 4 –Multiple boilers, Local control, Outdoor resetJobB SetupthenamesforeachofthecontrollersJobC Makeon

NeoTherm Boilers and Water HeatersPage 51System 7 –Single boiler, System controlJobI SettheparametersusedbytheLead/LagsystemJobL Buildinga

LAARS Heating SystemsPage 52System 11 –Single boiler, System control, 4-20 mA setpoint controlJobI SettheparametersusedbytheLead/LagsystemJo

NeoTherm Boilers and Water HeatersPage 53System 15 –Single boiler, System control, 4-20 mA modulation controlJobI SettheparametersusedbytheLea

LAARS Heating SystemsPage 54System19–Multiple boiler, System control, Common vent, 4-20 mA setpoint controlJobA NoteoncommonventingJobB Set

NeoTherm Boilers and Water HeatersPage 55System 22 – Multiple boiler, System control, Common vent, 4-20 mA modulation control, Outdoor resetJobA Not

LAARS Heating SystemsPage 2 OperatorinterfaceBoiler 1Slave 4Boiler 2Slave 3Slave 2Lead LagMaster andSlave 1Slave 6Boiler 3Slave 5Slave 8Boiler 4Slave

LAARS Heating SystemsPage 569.4 Installation JobsNote – To install your system, you will not need to do all of the installation jobs listed here. P

NeoTherm Boilers and Water HeatersPage 57Fig.56-SystemIdenticationandAccess5. GodowntothelineforBoilerNametochangethe name of the co

LAARS Heating SystemsPage 582. In a running system, the following screen would normally show the current activity of eachunitintheLead/Lagsyste

NeoTherm Boilers and Water HeatersPage 591. From the Home screen (Fig. 61), press the icon for the controller you want to work with. In this exampl

LAARS Heating SystemsPage 605. At this point, you have disabled the Master functionononeofthecontrollers.Youwillneed to repeat the process

NeoTherm Boilers and Water HeatersPage 618. PresstheChangeAddressbuttonagain.Thesystem will present a screen that lets you change the address

LAARS Heating SystemsPage 62Aapvalveactslikeaone-wayvalveorcheckvalve.If one burner in a boiler is operating, and the other isnot,one

NeoTherm Boilers and Water HeatersPage 63Fig.73–FlapValveCongurationScreen Notice that there are two items on this screen.Controller ID -This

LAARS Heating SystemsPage 64 In this example, we are still working with the Primary control for Boiler 1. From the table, youcanseethatthiscon

NeoTherm Boilers and Water HeatersPage 65Fig.78–SafetyParameterConrmation Checkthelistcarefully.PressYesifallofthe parameters in the

NeoTherm Boilers and Water HeatersPage 31.3 Safety Notes WARNINGFire or Explosion HazardImpropercongurationcancausefuelbuildupandexplosion.

LAARS Heating SystemsPage 66Fig. 81 – Modbus ConnectionsBoiler 1Ctrl1Ctrl2A B CMB 2MB 1MB 2MB 1A B CBoiler 2Ctrl1Ctrl2A B CMB 2MB 1MB 2MB 1A B CBoile

NeoTherm Boilers and Water HeatersPage 671. FromtheHomescreen(Fig.82),presstheView Lead Lag button.Fig. 82 – Home Screen2. If the system wer

LAARS Heating SystemsPage 68 Here are the settings on this screen:Master enable - Enabled=Lead/LagsystemenabledCH setpoint - Setpoint for LL C

NeoTherm Boilers and Water HeatersPage 698. Presstheleft-arroworright-arrowuntilyouseetheCentralHeatscreen(Fig.87).Fig. 87 – Central Hea

LAARS Heating SystemsPage 7010. Press the left-arrow or right-arrow until you see theOutdoorResetscreen(Fig.89).Fig. 89 – Outdoor Reset “Outdo

NeoTherm Boilers and Water HeatersPage 71 When enabled, the Warm Weather Shutdown feature will turn off the Central Heating functions when the outdoo

LAARS Heating SystemsPage 72The input for the Time of Day function must be wired topins2and3onconnectorJ10.Fig. 93 – Connections for “Time of

NeoTherm Boilers and Water HeatersPage 73Fig. 96 – Warm Weather Shutdown When enabled, the Warm Weather Shutdown feature will turn off the Central He

LAARS Heating SystemsPage 74When you set up the Outdoor Reset feature, you can set the “turning points” on the adjusted setpoint curve.Ifyougoba

NeoTherm Boilers and Water HeatersPage 75Fig.98–LeadLagCentralHeatConguration3. Change the 4 mA water temperature to match the lowest water t

LAARS Heating SystemsPage 4Fig. 4 - Location of Components1.6 WarrantyLAARS Heating Systems’ NeoTherm appliances are covered by a limited warranty. T

LAARS Heating SystemsPage 76• Whenyouarethrough,youshutoffthecontroller/burner you have been working with, turn on the other controller/burn

NeoTherm Boilers and Water HeatersPage 77Fig. 102 – Home Screen4. The system will present the Status Summary screen. Press the Operation button.Fig.

LAARS Heating SystemsPage 78control to Manual, this forces the burner to run at full combustion so you can adjust the gas valve for the correct CO2 o

NeoTherm Boilers and Water HeatersPage 79 • Turnoffthecallforheat,andsetbothburnerstorunat1200RPMforlowre.Turnon the call for h

LAARS Heating SystemsPage 802. Press the Setup button. The system will present the Display Setup screen.Fig. 108 – Display Setup Screen3. Press th

NeoTherm Boilers and Water HeatersPage 819.5 Setup for Domestic Hot Water on a Lead/Lag SystemThere are three ways that a NeoTherm 1000 system can be

LAARS Heating SystemsPage 82Fig. 113 – Lead/Lag Master Screen 4. PresstheCongurebutton.ThedisplaywillpresenttheLead/LagMasterCongurati

NeoTherm Boilers and Water HeatersPage 83• OneachoftheboilersusedforDHW,thetwoburners in that boiler will operate in Lead/Lag mode.Youca

LAARS Heating SystemsPage 842. If the system was running, the following screen would normally show the current activity of each unit in the multiple

NeoTherm Boilers and Water HeatersPage 859.6 Installer ParametersThis is a list of all of the parameters which can be accessed using the Installer pa

NeoTherm Boilers and Water HeatersPage 5Fig. 5 - Dimensions1.7 Dimensions The dimensions are shown in Fig. 5.1.8 UnpackingThe NeoTherm unit is shippe

LAARS Heating SystemsPage 86Label Description How to ReachCH (Central Heat) has priority over LL (Lead/Lag)This controls whether a local Central Heat

NeoTherm Boilers and Water HeatersPage 87Label Description How to ReachCH (Central Heat) Pump Cycle CountCH pump cycle count. Can be written to a ne

LAARS Heating SystemsPage 88Label Description How to ReachDHW (Domestic Hot Water) pump controlThe DHW pump (Pump C) can be turned on manually, or it

NeoTherm Boilers and Water HeatersPage 89Label Description How to ReachLead lag D gainThis is part of the damping function (“Derivative”) used when th

LAARS Heating SystemsPage 90Label Description How to ReachLead lag off hysteresisWhen the Lead/Lag function is enabled, the control system will not s

NeoTherm Boilers and Water HeatersPage 91Label Description How to ReachLead/Lag Outdoor Reset max outdoor temperatureIf Lead/Lag is enabled, this is t

LAARS Heating SystemsPage 9211. Shut down the entire system and vent all radiation units and high points in the system piping, as described in Step

NeoTherm Boilers and Water HeatersPage 93 CautionIf any odor of gas is detected, or if the gas burner does not appear to be functioning in a normal m

LAARS Heating SystemsPage 94Section 11MAINTENANCE WARNINGDisconnect all power to the unit before attempting any service procedures. Contact with ele

NeoTherm Boilers and Water HeatersPage 95power supply to the boiler. Turn off all manual gas valves connecting the boiler to the main gas supply line.