*All
models are equipped with 2 temperature controls. One
manual Reset High Limit Control shuts the boiler off
if the adjustable temperature control fails. The water
temperature control is adjustable from 100° F to
240° F. When the boiler water temperature reaches
the limit, all heating elements are de-energized. The
circulator pump will continue to run as long as there
is a call for heat from the room thermostat.
Circulator
All models contain a circulator fuse and relay. The
circulator is protected and there is no need for either
a separate fuse box or external wiring. For Models HMR
there is a circulator switch. During the initial start-up,
air is automatically purged from the system. Thus, manual
operation of the circulator is permitted if desired.
General
Boiler shells are constructed of low carbon steel to
comply under the "H" symbol of the A.S.M.E.
Code and are individually inspected. These shells are
made from A.S.M.E grade boiler plate and wrapped with
fiberglass insulation.
Heavy
gauge boiler jackets are furnished in eye appealing
enamel.
Elements
are low watt density which insures longer life. The
elements are Copper sheathed and pressure sealed to
the flange. Models HMR are single phase. Provisions
have been made in the boiler jacket for quick and easy
removal of the elements.
All
element ratings are based on 240 volt power input. Other
voltages available.
Control
panels for all models are mounted in a control box outside
of the unit. This insures easy access to all controls
and more important does not allow overheating of wires,
controls or fuses. For these reasons the circulator
pump is mounted outside the jacket. This insures uninterrupted
service and long life. |
