Greenheck CONTROLS AND ENERGY MANAGEMENT User Manual
Kitchen Ventilation Systems
Controls and Energy Management
• Relay Box • Temperature Interlock
• Fan Control Center • Variable Volume Systems
September
2009
Control Decision Guide
No
No
No
No
No
Which Control is Right For Your Application?
Do you want to start and
stop your fans via a prewired
control package?
No
Field wired or optional
factory mounted switches.
Yes
Do you want the system
to vary the exhaust and
supply rates based on the
cooking load?
No
Do you ONLY require a
temperature interlock
to comply with IMC
507.2.1.1?
No
Do you require factory
prewired options such
as exhaust on in fire,
temperature interlock (IMC
507.2.1.1), etc?
No
Yes
Yes
Yes
Greenheck Vari-Flow System
or Melink Intelli-Hood
System
(Both systems comply with *IMC 507.2.1.1)
Temperature Interlock
Kitchen Fan Control Center
(KFCC)
IMC International Mechanical Code
Do you have:
• More than two fans?
• 3-phase motors?
• The need for thermal
overloads?
No
Relay Box
Yes
Kitchen Fan Control Center
(KFCC)
All Greenheck controls are UL Listed to
Standard 891 or 710 as it applies.
2
3
Greenheck’s relay box is compact, prewired and offers a low-cost method of starting one or several single-
phase fan motors. The relay box can be used in place of larger, more expensive starters.
All
Greenheck Controls
When switches are moved to the on position, lights turn
Relay Box
Standard Construction Features
Requirements:
Limitations:
Temperature Interlock
Standard Construction Features
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