Install Instructions
Page 1
NEOTHERM Residential Boilers
®
SECTION 1 GENERAL
INFORMATION
1.A Introduction
1.B Warranty
LAARS Heating Systems NeoTherms are covered by
a limited warranty. The owner should complete the
warranty registration at www.Laars.com.
All warranty claims must be made 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.
Consult the rating plate on the unit. The following
information describes the model number structure.
(1-2) Model Series Designation
N T = NeoTherm
(3) Usage
H = Hydronic
(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
2 1 0 = 210,000 BTU/hr input
(7) Fuel
N = Natural Gas
P = LP Gas
(8) Options Code
X = Standard Unit
(9) Pump Options
N = Pump included (80-210 only)
X = No pump (conguration available
for all sizes)
W = HLW w/ Pump
L = HLW w/out Pump
(10) Revision
3 = Third version
1 2 3 4 5 6 7 8 9 10 11
H
X
SERIES
N T
USAGE
H -
HYDRONIC
SIZE
MBTU/h
0 8 0
1 0 5
1 5 0
2 1 0
FUEL
N - NATURAL
P - PROPANE
OPTIONS CODE
X -
STANDARD
REVISION
3 - THIRD
REG DESIGNATION
Model Nomenclature
3
N T
B - INTERNAL USE
PUMP OPTIONS
N -
PUMP INCL.
(80-210 only)
X - NO PUMP
W - HLW w/PUMP
L - HLW w/out
PUMP
This manual provides information necessary for the
installation, operation, and maintenance of the LAARS
Heating Systems NeoTherm. 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.
The NeoTherm is protected against over pressurization.
A pressure relief valve is included with each unit. Some
may require that the PRV be installed prior to lling the
system. Refer to Figure 1 andFigure 2 on page 4 for
PRV locations.
1.C Model Identication (Nomenclature)
NOTE: Throughout the content of this manual,
the NeoTherm will be referred to as a ‘unit’.
unit = NeoTherm