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   McDonnell
&
Miller
   
Flame safeguard,
combustion control and system controls servicing,
troubleshooting and upgrading for optimum efficiency
and comfort control. Contact
us for more information on specific controls or
use the links above for loads of information on each
of their product lines. 773-777-4888
| LIGHT
COMMERCIAL SYSTEMS |
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Outdoor reset
controls with night set back for added fuel
savings, or space sensing with multiple averaging
temperature sensors, or a combination of both for
the ultimate in boiler controls are now available.
Remote communications and monitoring from any PC
are also among many optional features we can
include in a system designed to fit your needs.
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| LARGE
COMMERCIAL / INDUSTRIAL SYSTEMS |
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A recent custom control panel installation for a
20,000 sq. ft. office building retrofit using
Johnson Controls. The control system operates a 4
stage DX air conditioning condenser; 2 remote
boilers, mixing valves and pumps located
approximately 200 ft. away in adjoining building;
economizer and exhaust dampers; and interfaced
with existing Yaskawa frequency drives for supply
and return blowers.
The left picture shows the old panel with
pneumatic devices. Right picture shows new panel
with digital controller and 2 pneumatic
transducers to operate existing pneumatic dampers
that were still functional.
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