Laars OMNITHERM ONH1250, Инструкции по сборке, установке и эксплуатации, Страница: 5 / 136

Page 5
1.C Model Identification
SECTION 1 General Information
1.A
Introduction
1.B
Warranty
The
O
MNI
T
HERM
Consult the rating plate on the unit. The following
information describes the model number structure.
Prices Effective July 1st, 2019 Document 6119B
Customer Service and Product Support:
800.900.9276 • Fax 800.559.1583
Headquarters:
20
Industrial Way, Rochester, NH, USA 03867 • 603.335.6300 • Fax 603.335.3355
9 Brigden Gate, Halton Hills, Ontario, Canada L7G 0A3 • 905.203.0600 • Fax 905.636.0666
www.Laars.com
Printed in U.S.A. © Laars Heating Systems 1911 Document 6119B
O
MNI
T
HERM
®
• ASME "H" stamp (ONH) • Sealed combustion chamber • High & low gas pressure switches
• ASME "HLW" stamp (ONV) • Pre-mix stainless steel burner • Vent temperature cutoff
•
160 psi maximum working pressure
•
Electronic PID control with large
•
Normally open alarm contact
• Certified for Category I fan-assisted touchscreen and color display • Air filter
and Category III vent • Multiple, independent heat demands • Water flow switch
• Cat III horizontal / vertical direct vent • Control cascades with up to • Temperature & pressure gauge
• Cat III vent & air pipe lengths of up to eight OmniTherm ONH/ONV units • Low water cutoff
100 equivalent feet (each) • Accepts 4-20ma or 0-10VDC • 75 psi (517kPa) ASME rated
•
Indoor/outdoor external set point control pressure relief valve (ONH)
• Low NOx system exceeds the • Modbus RTU & BACnet MSTP • 125 psi (861kPa) ASME rated
most stringent NOx regulations on board pressure relief valve (ONV)
• Sophisticated gas/air valve allows • Multiple pump control, each with delay • Groove lock fittings
for constant control of combustion • Indirect DHW priority (ONH) (optional flange adapter)
• Stainless steel heat exchanger • Domestic water sensor • Burner site glass
with welded construction
•
Outdoor reset with sensor (ONH)
•
10-year limited warranty
1 2 3 4 5 6 7 8 9 10 11 12 13
O N N 1
1 2 5 0
1 5 0 0
1 7 5 0
2 0 0 0
2 5 0 0
X- std ONH, 75psi PRV, H-Stamp N- ONV w/ H-Stamp, 30psi PRV
W- std ONV, 125psi PRV, HLW-Stamp P- ONV w/ H-Stamp, 50psi PRV X- None H- Gateway LONworks
A- 30psi PRV R- ONV w/ H-Stamp, 60psi PRV A- Gateway, BACnet IP & alarm bell
B- 50psi PRV S- ONV w/ H-Stamp, 75psi PRV B- Gateway, LONworks J- Gateway LONworks
C- 60psi PRV T- ONV w/ H-Stamp, 125psi PRV C- Alarm bell & high limits
D- ONV 75psi PRV U- ONV w/ H-Stamp, 150psi PRV D- Auto & manual K- Gateway LONworks
E- ONH 125psi PRV 2- Flange kit, ONV w/ H-Stamp, 30psi PRV high limits & alarm bell
F- 150psi PRV 3- Flange kit, ONV w/ H-Stamp, 50psi PRV E- Gateway BACnet IP & high limits
G- Flange kit & 30psi PRV 4- Flange kit, ONV w/ H-Stamp, 60psi PRV & alarm bell L- Alarm & high limits
H- Flange kit & 50psi PRV 5- Flange kit, ONV w/ H-Stamp, 75psi PRV F- Gateway BACnet IP
J- Flange kit & 60psi PRV 6- Flange kit, ONV w/ H-Stamp, 125psi PRV & high limits
K- Flange kit & 75psi PRV 7- Flange kit, ONV w/ H-Stamp, 150psi PRV G- Gateway BACnet IP
L- Flange kit & 125psi PRV & alarm bell
M- Flange kit & 150psi PRV & high limits
Revision
N- Nat X- Standard A- 120V, single phase (1250-2000) 1- First
OmniTherm - Category I / III Vent
Commercial Boiler / Water Heater ONH & ONV with Laars Linc Control
Standard Features
Model Nomenclature
Size / MBH Fuel Construction Electrical System Series
ON- Cat I / III
F- 600V, three phase (2500)
Waterway Options
Additional Options
J- CSD-1 B- 220/240V, single ph (1500-2500)
Usage C- 208V, single phase (1500-2500)
H - Hydronic D- 208V, three phase (2500)
V - Volume Water E- 480V, three phase (2500)
This manual provides information necessary for the
installation, operation, and maintenance of LAARS
Heating Systems OmniTherms. Read this manual
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.
OmniTherm is protected against over pressurization. A
pressure relief valve is included with each OmniTherm.
Some OmniTherms may require that the PRV be
installed prior to filling the system. Refer to Section 1.E
on page 8 for PRV locations.
LAARS Heating Systems OmniTherms 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.