LAARS Mighty Max VW (Sizes 320M - 400M) - Installation, Operation and Maintenance Instructions - Manual (Page 3)

Mighty Max Volume Water Heater Page 3
SECTION 1.
General Information
1.1 Introduction
This manual provides installation, operation, and
maintenance instructions for the Mighty Max Volume
Water Heater, Model VW, Sizes 320M and 400M.
Review all application and installation procedures
completely before proceeding with the installation.
Consult the local factory representative or Laars
factory with any questions regarding this equipment.
Experience has shown that most operating problems
are caused by improper installation. The VW heaters
are offered in an indoor version and an outdoor
version (see Figure 1). Table 1 lists the input/output
ratings for each heater size.
The indoor version is convertible for outdoor use
with the installation of a conversion kit (see Section 6,
Parts List, for part number).
1.2 Warranty
The Mighty Max VW heaters are sold with a
limited factory warranty. Details are specified on the
back cover of this manual.
Make all warranty claims to an authorized Laars
representative or directly to the factory. Claims must
include the heater serial number and model number
(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 are shipped in separate
packages. Inspect everything for damage immediately
upon delivery, and advise the transporter of any
shortages or damage. Any such claims should be filed
with the transporter. The transporter will not accept a
claim from the shipper, Laars.
The warranty does not cover damage caused by
improper installation, operation, or field modification.
1.3 Technical Assistance
Consult the local factory representative or Laars
factory with any questions regarding the specification,
installation, and operation of Laars equipment. An
experienced technical support staff is ready to assist in
assuring the proper performance and application of
Laars products.
Heater Input Output
Size BTU/h kW BTU/h kW
320M 320,000 94 272,000 80
400M 399,000 117 339,150 99
Table 1. Input/Output Ratings.
SECTION 2.
Installation Instructions
2.1 General Information
Install the Mighty Max VW heater in accordance
with the procedures in this manual (or the Laars
warranty may be voided), local codes, and ordinances.
In the absence of such codes, install the heaters in
accordance with the latest edition of the National Fuel
Gas Code, ANSI Z223.1/National Fire Protection
Association (NFPA) 54. In Canada, the installation
must be in accordance with CSA B149.1 and local
codes. The authority having jurisdiction may require
the installation be in accordance with the American
Society of Mechanical Engineers (ASME) Safety
Codes for Controls and Safety Devices for
Figure 1. Mighty Max VW Heater Configuration.
INDOOR OUTDOOR
Front Side
(Water Connections)
Rear Side
(Opposite Water
Connections)
OUT OF
PRODUCTION