Laars NEOTHERM NTH Manuel utilisateur
Installation and Operation Instructions Document 1252B
H2355200B
WARNING
If the information in this manual is not
followed exactly, a re or explosion may
result causing property damage, personal
injury or loss of life.
Do not store or use gasoline or other
ammable vapors 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
nearby phone. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call
the re department.
Installation and service must be performed
by a qualied installer, service agency, or gas
supplier.
FOR YOUR SAFETY: This product must be installed and serviced by a professional service technician,
qualied in hot water boiler and heater installation and maintenance. Improper installation and/or operation
could create carbon monoxide gas in ue gases which could cause serious injury, 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 ni
d’autres vapeurs ou liquides inammables dans
le voisinage de cet appareil ou de tout autre
appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR DE GAZ:
• Ne pas tenter d’allumer d’appareils.
• Ne touchez à aucun interrupteur. Ne pas vous
servir des téléphones dansle bâtiment où vous
vous trouvez.
• Appelez immédiatement votre fournisseur de
gaz depuis un voisin. Suivez les instructions
du fournisseur.
• Si vous ne pouvez rejoindre le fournisseur de
gaz, appelez le sservice des incendies.
L’installation et l’entretien doivent être assurés par
un installateur ou un service d’entretien qualié ou
par le fournisseur de gaz.
Installation and Operation
Instructions for
NEOTHERM
®
Modulating Boiler
Model NTH
Sizes 080–850 MBTU/h
Water Heater
Model NTV
Sizes 150–850 MBTU/h
LAARS Heating Systems
Section 1 -
General Information
1.1 Introduction....................................................... 1
1.2 ModelIdentication........................................... 1
1.3 ApplianceOverview.......................................... 2
1.4 Warranty ........................................................... 6
1.5 Unpacking......................................................... 6
1.6 Dimensions....................................................... 6
Section 2 -
Locating the Appliance
2.1 GeneralInformation.......................................... 8
2.2 LocatingApplianceforCorrectVentDistance
fromOutsideWallorRoofTermination............. 8
Section 3 -
Venting and Combustion Air
3.1 CombustionAir ................................................. 9
3.2 Venting............................................................ 10
3.3 LocatingVent&CombustionAirTerminals..... 12
3.4 CommonVentTest ......................................... 15
Section 4 -
Gas Supply and Piping
4.1 GasSupplyandPiping ................................... 15
Section 5 -
Pump Requirements
5.1 NeoThermBoilerFlowand
HeadRequirements........................................ 16
5.2 NeoThermWaterHeater
FlowandHeadRequirements ........................ 16
Section 6A -
Water Connections - NTH Boiler
6A.1 NTHSystemPiping:HotSupply
Connections.................................................... 17
6A.2 NTHColdWaterMake-Up.............................. 17
6A.3 CondensateDrain........................................... 18
6A.4 FreezeProtection ........................................... 18
6A.5 NTHSuggestedPipingSchematics ............... 18
6A.6 RecognizedChemicals................................... 18
Section 6B -
Water Connections - NTV Water Heater
6B.1 NTVWaterQuality.......................................... 26
6B.2 PipingRequirements ...................................... 26
6B.3 ColdWaterMake-Up ...................................... 27
6B.4 CondensateDrain........................................... 27
6B.5 FreezeProtection ........................................... 27
6B.6 NTVSuggestedPipingSchematics................ 27
6B.7 NTVSuggestedPumps .................................. 27
Section 7-
The User Interface
7.1 AbouttheUserInterface................................. 30
7.2 NavigatingthroughtheUserInterface............ 30
7.3 TheHomeDisplay .......................................... 31
7.4 CustomizingyourHomeDisplay .................... 31
7.5 Entering/ChangingControlSettings ............... 31
Section 8A -
Quick Start Menu
8A.1 QuickStartMenu............................................ 35
Section 8B -
Basic Installation and Wiring
8B.1 InstallationWarnings ...................................... 36
8B.2 MainPowerConnections................................ 37
8B.3 PumpConnectionsandOperation ................. 37
Section 8C -
Detailed Setup Instructions and Diagrams
8C.1 24VACTransformerwithIntegral
CircuitBreaker................................................ 38
8C.2 HydronicHeatingDemand ............................. 38
8C.3 Anti-Short-Cycle ............................................. 38
8C.4 OutdoorAirTemperatureSensor.................... 38
8C.5 OutdoorReset ................................................ 38
8C.6 WarmWeatherShutdown............................... 40
8C.7 DomesticHotWater........................................ 40
8C.8 CascadingLead/LagOperation..................... 42
8C.9 HydronicHeatingUsingExternal
ModulationControl ......................................... 45
8C.10 OptionalFieldConnections ............................ 46
8C.11 Connectionstoa
BuildingAutomationSystem........................... 46
8C.12 LadderandWiringDiagrams.......................... 47
Table of Contents
i
NEOTHERM Boilers and Water Heaters
Section 9 -
First Start-Up and Adjustment Instructions
9.1 FillingtheBoilerSystem ................................. 50
9.2 FirstOperation................................................ 50
9.3 AdjustingtheDifferentialand
ManifoldPressure........................................... 51
9.4 ShuttingDowntheNeoThermUnit................. 53
9.5 RestartingtheNeoThermUnit........................ 53
Section 10 -
Maintenance
10.1 SystemMaintenance ...................................... 54
10.2 ApplianceMaintenanceandComponent
Description...................................................... 54
10.3 GasConversion.............................................. 57
Section 11 -
Operating Details and Troubleshooting
11.1 NormalStartupandInitialization..................... 58
11.2 SequenceofOperation.................................. 58
11.3 ModulationControl ......................................... 58
11.4 PumpControl.................................................. 58
11.5 Anti-Short-Cycle ............................................. 59
11.6 TemperatureSensors ..................................... 59
11.7 Diagnostics ..................................................... 59
11.8 ErrorCodes .................................................... 59
Section 12 -
Replacement Parts
13.1 GeneralInformation........................................ 60
13.2 PartsList......................................................... 60
Appendices -
AppendixA-SoftwareControlFunctions.................... 71
AppendixB-ErrorMessages...................................... 77
ii
LAARS Heating Systems
Page 1
NEOTHERM Boilers and Water Heaters
Section 1 -
GENERAL INFORMATION
WARNING
NeoTherm units must be installed in accordance
with the procedures detailed in this manual, or the
LAARS Heating Systems warranty will be voided.
The installation must conform to the requirements
of the local jurisdiction having authority, and, in the
United States, to the latest edition of the National
Fuel Gas Code, ANSI Z223.1/NFPA54. In Canada,
the installation must conform to the latest edition
of CSA B149.1 Natural Gas and Propane Gas
Installation Code, and/or local codes. Where required
by the authority having jurisdiction, the installation
of NeoTherm boilers must conform to the Standard
for Controls and Safety Devices for Automatically
Fired Boilers, ANSI/ASME CSD-1. Any modications
to the boiler, its gas controls, or wiring may void the
warranty. If eld conditions require modications,
consult the factory representative before initiating
such modications.
1.1 Introduction
This manual provides information necessary for the
installation, operation, and maintenance of LAARS Heating
Systems NeoTherm appliances. Read it carefully before
starting the installation.
All application and installation procedures should be reviewed
completely before proceeding with the installation. Consult
the LAARS Heating Systems factory, or local factory
representative, with any problems or questions regarding
this equipment. Experience has shown that most operating
problems are caused by improper installation.
NeoTherm is protected against over pressurization. A
pressure relief valve is included with each NeoTherm. Some
NeoTherms may require that the PRV be installed prior to
lling the system. Refer to Figures 1-7 for PRV locations.
DANGER
The inlet gas pressure to the appliance must not
exceed 13” W.C. (3.2kPa).
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 ModelIdentication
Consult the rating plate on the unit. The following information
describes the model number structure.
(1-2) ModelSeriesDesignation
N T = NeoTherm
(3) Usage
H = Hydronic
V = Volume Water
(4-6) Size
0 8 0 = 80,000 BTU/hr input
1 0 5 = 105,000 BTU/hr input
1 5 0 = 150,000 BTU/hr input
1 9 9 = 199,000 BTU/hr input
2 1 0 = 210,000 BTU/hr input
2 8 5 = 285,000 BTU/hr input
3 9 9 = 399,000 BTU/hr input
5 0 0 = 500,000 BTU/hr input
6 0 0 = 600,000 BTU/hr input
7 5 0 = 750,000 BTU/hr input
8 5 0 = 850,000 BTU/hr input
(7) Fuel
N = Natural Gas
P = LP Gas
(8) Options Code
X = Standard Unit
J = CSD-1, FM, GAP, IL Code (size 500-850 only)
(9) Pump Options
N = Pump included (80-500 only)
X = No pump (conguration available for all sizes)
(10) Revision
3 = Third version
1 2 3 4 5 6 7 8 9 10 11
SERIES
N T
USAGE
H - HYDRONIC
V - VOLUME
WATER
SIZE
MBTU/h
0 8 0
1 0 5
1 5 0
1 9 9
2 1 0
2 8 5
3 9 9
5 0 0
6 0 0
7 5 0
8 5 0
FUEL
N - NATURAL
P - PROPANE
OPTIONS CODE
X - STANDARD
J - CSD-1,
FM, GAP,
IL
(500-850 only)
PUMP OPTIONS
N - PUMP INCL.
(80-500 only)
X - NO PUMP
REVISION
3 - THIRD
REG DESIGNATION
ModelNomenclature
B3N T
B- INTERNAL USE
NTH only
NTH only
NTV only
NTH only
Page 2
LAARS Heating Systems
Figure1-LocationofComponents,Sizes80–105
Figure2-LocationofComponents,Sizes150-210
EXHAUST VENT CONNECTION
GAS CONNECTION
USER CONTROL
INTERFACE
HEAT EXCHANGER
GAS VALVE
VENTURI
AIR/ GAS
BLOWER
PRESSURE RELIEF VALVE
WATER INLET
WATER OUTLET
AIR INLET CONNECTION
DRAIN VALVE
CONDENSATE TRAP
AIR TRANSITION
EXHAUST VENT CONNECTION
GAS CONNECTION
AIR PRESSURE SWITCH
USER CONTROL
INTERFACE
HEAT EXCHANGER GAS VALVE
VENTURI
AIR/ GAS
BLOWER
PRESSURE RELIEF VALVE
WATER INLET
WATER OUTLET
AIR INLET CONNECTION
DRAIN VALVE
CONDENSATE TRAP
AIR TRANSITION
1.3 ApplianceOverview-See Figures 1 through 7.
ON / OFF SWITCH
ON / OFF SWITCH
Page 3
NEOTHERM Boilers and Water Heaters
Figure4-LocationofComponents,Size399
Figure3-LocationofComponents,Size285
EXHAUST VENT CONNECTION
AIR INLET CONNECTION
GAS CONNECTION
USER CONTROL
INTERFACE
HEAT EXCHANGER
GAS VALVE
VENTURI
AIR/ GAS
BLOWER
EXHAUST VENT CONNECTION
GAS CONNECTION
USER CONTROL
INTERFACE
HEAT EXCHANGER
MANUAL SHUTOFF
GAS VALVE
VENTURI
AIR/ GAS
BLOWER
PRESSURE RELIEF VALVE
WATER INLET
WATER OUTLET
AIR INLET CONNECTION
DRAIN VALVE
CONDENSATE TRAP
GAS VALVE
WATER INLET
WATER OUTLET
PRESSURE RELIEF VALVE
AIR PRESSURE SWITCH
DRAIN VALVE
CONDENSATE TRAP
AIR TRANSITION
ON / OFF SWITCH
ON / OFF SWITCH
Page 4
LAARS Heating Systems
Figure6-LocationofComponents,Size600
Figure5-LocationofComponents,Size500
EXHAUST VENT CONNECTION
PRESSURE RELIEF VALVE
AIR PRESSURE SWITCH
USER CONTROL
INTERFACE
HEAT EXCHANGER
MANUAL SHUTOFF
GAS VALVE
VENTURI
GAS VALVE
EXHAUST VENT CONNECTION
GAS CONNECTION
PRESSURE RELIEF VALVE
USER CONTROL
INTERFACE
HEAT EXCHANGER
MANUAL SHUTOFF
GAS VALVE
VENTURI
AIR/ GAS BLOWER
WATER INLET
WATER OUTLET
AIR INLET CONNECTION
DRAIN VALVE
CONDENSATE TRAP
AIR PRESSURE SWITCH
WATER INLET
WATER OUTLET
AIR INLET CONNECTION
DRAIN VALVE
CONDENSATE TRAP
GAS CONNECTION
AIR/ GAS BLOWER
GAS PRESSURE
SWITCH
AIR PRESSURE SWITCH
ON / OFF SWITCH
GAS VALVE
MANUAL SHUTOFF
GAS VALVE
ON / OFF SWITCH
Page 5
NEOTHERM Boilers and Water Heaters
Figure7-LocationofComponents,Sizes750and850
WATER INLET
WATER OUTLET
AIR INLET
DRAIN VALVE
CONDENSATE TRAP
AIR/ GAS BLOWER
PRESSURE RELIEF
VALVE
USER CONTROL
INTERFACE
HEAT EXCHANGER
EXHAUST VENT
CONNECTION
VENTURI
GAS VALVE
GAS CONNECTION
MANUAL SHUTOFF
GAS VALVE
ON / OFF SWITCH
Page 6
LAARS Heating Systems
Figure8-ContentsofShippingPackage
1.4 Warranty
LAARS Heating Systems’ NeoTherm appliances are covered
by a limited warranty. The owner should complete the
warranty registration at www.Laars.com.
All warranty claims must also be made at www.Laars.com. or
to an authorized LAARS Heating Systems representative.
Claims must include the serial number and model (this
information can be found on the rating plate), installation
date, and name of the installer. Shipping costs are not included
in the warranty coverage.
Some accessory items may be shipped in separate packages.
Verify receipt of all packages listed on the packing slip.
Inspect everything for damage immediately upon delivery,
and advise the carrier of any shortages or damage. Any such
claims should be led with the carrier. The carrier, not the
shipper, is responsible for shortages and damage to the
shipment whether visible or concealed.
1.5 Unpacking
The NeoTherm unit is shipped in a single crate with the
following standard components packed with the appliance.
(See Figure 8.)
A. Exhaust vent terminal (US only)
B. Air intake terminal
C. Temperature/pressure gauge kit
D. Circulator pump/wire harness (units with pump)
E. CPVC exhaust pipe section (80-850) (US only)
F. Outdoor/system sensor kit
G. Flow switch kit (399-850)
H. Alternate size vent/terminal screens
J. Exhaust vent adapter CPVC/ST ST (750-850)
K. 4x6 PVC adapter with 4x7 PVC pipe section
(750-850) (not to be used on exhaust in Canada)
1. Remove all packing and tie-down materials.
2. Check the contents of the carton against the items
shown.
1.6 Dimensions
All NeoTherm model dimensions are shown in Figure 9.
Autres manuels pour NEOTHERM NTH
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