General Information; A Introduction; B Warranty; C Model Identification - Laars Neotherm NTH Installation And Operation Instruction Manual

N T Commercial Boilers and Water Heaters
EO HERM
SECTION 1

GENERAL INFORMATION

1.A Introduction

This manual provides information necessary for the
installation, operation, and maintenance of LAARS
Heating Systems NeoTherm boilers and water heaters.
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 filling the system. Refer to Figures 2-9
for PRV locations.

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.
NOTE: Throughout the content of this manual,
the NeoTherm will be referred to as a 'unit'.
unit = NeoTherm
v
Model Nomenclature
1 2 3 4 5
N T
SERIES SIZE
N T MBTU/h
1 5
USAGE 1 9
H - Hydronic 2 8
Boiler 3 9
V - Volume 5 0
Water 6 0
7 5
8 5
6 7
FUEL
N - Natural Indoor Units
0 P - Propane X - Standard U.S.
9 C - Standard Canada
5 J - CSD-1 (U.S. 500-850 only)
9 D - CSD-1 (Can 500-850 only)
0 Outdoor Units
0 E - Standard U.S.
0 F - Standard Canada
0 G - CSD-1 (U.S. 500-850 only)
H - CSD-1 (Can 500-850 only)

1.C Model Identification

Consult the Rating Plate on the side of the unit. The
following information describes the Model Identification
(Model Nomenclature).
(1-2)
Model Series Designation
N T = NeoTherm
(3)
Usage
H = Hydronic
V = Volume Water
(4-6)
Size
1 5 0 = 150,000 BTU/hr input, NTV only
1 9 9 = 199,000 BTU/hr input, NTV only
2 8 5 = 285,000 BTU/hr input, NTV only
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 US
J = CSD-1, FM, GAP,
C = Standard Canada
D = CSD-1 (Canada 500-800 only)
E = OUTDOOR (U.S.)
(Canada NTH 399-850 only)
F = OUTDOOR
G = CSD-1, OUTDOOR
H = CSD-1, OUTDOOR (
Pump Options
(9)
N = Pump included
X = No pump
W= HLW w/ Pump
L = HLW w/out Pump
(10)
Revision
3 = Third version
8
OPTIONS
X - No pump
N - Pump included
L - Opt. HLW no pump
W - Opt. HLW w/ pump
(U.S. size 500-850 only)
(U.S. 500-850 only)
)
Canada 500-850 only
(N/A for outdoor NTV 750 & 850)
(NTV only)
(NTV only)
9
PUMP OPTIONS REVISION
3 - Third
(N/A for outdoor
NTV 750 & 850)
(NTV only)
(NTV only)
(N/A for outdoor
NTV 750 & 850)
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