LAARS Mighty Therm HH (Sizes 2000-5000) - Installation, Operation and Maintenance Instructions - Manual (Page 3)

Mighty Therm Hydronic Boiler Page 3
SECTION 1.
General Information
IMPORTANT WARNING:
The Model HH hydronic boiler must be installed in
accordance with the procedures outlined in this
manual. Warranty does not apply to boilers not
installed or operated in accordance with these
procedures. Consult local building and safety codes
before proceeding with work. The installation must
conform to the requirements of the authority having
jurisdiction or, in the absence of such requirements,
to the latest edition of the National Fuel Gas Code,
ANSI Z223.1 and/or in Canada, CAN1-B149
requirement.
When required by the authority having
jurisdiction, the installation must conform to
American Society of Mechanical Engineers safety
code for controls and safety devices for automatically
fired boilers No. CSD-1, and in Canada, CGA3.3.
Any modification to the boiler, its gas controls, gas
orifices, wiring or draft diverter may void the Laars
warranty. If field conditions require such
modifications, consult Factory.
1A. Introduction
This manual provides information for the
installation and operation of Laars boilers. It is
strongly recommended that all application and
installation procedures be reviewed completely before
proceeding with the installation. Consult the 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.
Model HH boilers are offered in two
configurations: An indoor version and an outdoor
version. The indoor version is convertible for outdoor
use with the installation of a conversion kit as
described in Section 6 of this manual. The two
configurations are shown in Figure 1.
Some accessory items are 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
filed with the carrier. The carrier, not the shipper, is
responsible for shortages and damage to the shipment
whether visible or concealed.
Indoor Outdoor
When boiler is ordered with stage or modulated control and sales order states it is to be used on a variable flow system, the
temperature controller is factory installed in the outlet water.
Figure 1. Boiler Configuration.