Greenheck Canopy Hoods (452413 IOM) - Manual (Page 28)

Kitchen Hoods • Type I and Type II 28
®
Overall Wiring Plan View for Switch Panels
The diagrams below show typical wiring for combined
exhaust and supply switching when the switches are
shipped loose for remote mounting, and for hood
mounted switches.
The diagram shows how to wire the exhaust and
supply fan starters to the switches and fire suppression
contact. Typically, supply fans will be turned off and
exhaust fans will be turned on (or continue to run) in the
event the fire system is activated. The fire suppression
micro-switch is provided as part of the fire suppression
system and is normally mounted in the fire system
control box.
EXH
STR
FAN
CONTROL
VOLTAGE
H N
SUP
STR
FAN
OL
FANS LIGHTS
SWITCHES HOOD LIGHTS
VOLTAGE FOR LIGHTS
J-BOX ON
TOP OF
HOOD
SUP
HTR
CTRL
SUP
CTRL
COOL
HEAT/COOL
CONTROL
VOLTAGE
SUPPLY FAN
CONTACT
BLACK WHITE
N H
H N
NC
NO
COM
OL
FIRE SUPPRESSION
MICRO-SWITCH/CONTACTS
120 VAC
TYPICAL WIRING FOR COMBINED
EXHAUST & SUPPLY SWITCHING (SHIPPED LOOSE)
FIELD WIRING
FACTORY WIRING
COM
NO
NC
STR
Normally-open
Normally-closed
LABEL DESCRIPTION
Common
Motor Starter
OL Overload
FAN STARTERS PROVIDED
BY OTHERS
EXH
STR
FAN
CONTROL
VOLTAGE
H N
SUP
STR
FAN
OL
FANS LIGHTS
SWITCHES HOOD LIGHTS
VOLTAGE FOR LIGHTS
FAN STARTERS PROVIDED
BY OTHERS
J-BOX ON
TOP OF
HOOD
SUP
HTR
CTRL
SUP
CTRL
COOL
HEAT/COOL
CONTROL
VOLTAGE
SUPPLY FAN
CONTACT
BLACK WHITE
N H
H N
FIELD WIRING
FACTORY WIRING
NC
NO
COM
OL
FIRE SUPPRESSION
MICRO-SWITCH/CONTACTS
120 VAC
COM
NO
NC
STR
Normally-open
Normally-closed
LABEL DESCRIPTION
Common
Motor Starter
OL Overload
BLACK BLACK BROWN
RED
J-BOX ON
TOP OF
HOOD
ORANGE PURPLE YELLOW
TYPICAL WIRING FOR COMBINED
EXHAUST & SUPPLY SWITCHING (HOOD MOUNTED)
Shipped Loose Hood Mounted
Circuit Diagrams
ON
ON (NO)
ON
ON (NO)
ON
ON
ON (NO)
ON
ON (NO)
ON
ON
ON (NO)
ON (NO)
ON ON
ON
ON (NC) ON (NC)
ON
ON (NC) ON (NC)
ON
ON (NC)
ON (NC)
OFF
OFF OFF
OFF
OFF OFF
OFF
OFF OFF
On if both are not activated
Off if both are activated
Off if either are not activated
Off if both are not activated
On if both are activated
Off if either are not activated
Off if both are activated
On if either is activated
On if either is activated
On if both are activated
Off if both are not activated
Off if either not activated
Single Throw
Single Pole Double Pole
Double Throw
Double Throw
Center Off
Series Circuit
Normally
Open
Contacts
Parallel Circuit
Normally
Closed
Contacts
NOTE
Wiring examples for use when a control panel is not
provided as part of the kitchen package.