Hot
Water Heating Boiler
Model HL 36Z thru HL 180Z
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Electric
Hydronic Boilers
Designed for Commercial and Industrial Circulating
Systems (i.e. Swimming Pools, Water Source Heat
Pumps, Comfort Heating, Tank Heating, etc.)
Models 36 thru 54
Equipment includes a 24 volt circuit for remote sensor
operation and timers to limit initial amperage drawn by the
boiler.
Models
60 thru 100
Same as small models 36 thru 54 but to include a Solid State
Step Control (First-on, First-off) for energy conservation.
Models
120 thru 500
Same as Models 60 thru 100. Low water Cut-Off Controls are
used in lieu of Flow Switch. Equipped for 120 volt remote
control.
All models are equipped with 120 volt Control Circuit, Adjustable Temperature Controls, Hi-Limit
Safe Temperature Control, and Low Water Cut Off w/ Manual Reset. |
|
 Hot
Water Heating Boiler
Model HMH 25E1B
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Models HMR 12-25
Insulated Jacket, Element & Circulator Pilot Lights,
Aquastat Temperature Control, Aquastat Hi Limit Control*,
Integrally Mounted Manual Element Control and Air
Purging Switch, 24 Volt Transformer, 24 Volt Room
Thermostat, 1 1/4 Bell & Gossett Circulator No. 125, Extol
Expansion Tank (with Water Fill Valve, Air Scoop and
Automatic air Vent), Pressure-Temperature Gauge,
A.S.M.E. Safety Relief Valve, and Boiler Drain Valve with
Hose Connection.
*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 Blue 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. |
