Power For Starters And Fans; Fire System Integration - Greenheck KFCC Installation, Operation And Maintenance Manual

Power for Starters and Fans

The KFCC is equipped with contactors that may have
thermal overloads attached to them. Each fan should
have a designated power source. The breaker size
(amps), wire gauge, phase, and voltage for each fan is
specified on the KFCC wiring diagram.
115 VAC Single Phase Fan(s) Power Wiring
• LINE - from breaker to terminals L1 and L2
• LOAD, 115 VAC - from terminal block L2 and T3 on
the bottom of contactor/overload to fan disconnect
INPUT POWER L1
2 wire N
L2
115/1 phase
from breaker
Single phase, 115 VAC
Wiring Connection Example
200/208/230/277 VAC Single Phase Fan(s) Power
Wiring
• LINE - from breaker to terminals L1 and L2
• LOAD, 200/208/230/277 VAC - from T1 and T3 on
the bottom of contactor/overload to fan disconnect
INPUT POWER L1
2 wire
L2
208/1 phase
from breaker
Single phase, 200/208/230/277 VAC
Wiring Connection Example
Three Phase Fan(s) Power Wiring
• LINE - from breaker to terminals L1, L2 and L3
• LOAD - from T1, T2 and T3 on the bottom of
contactor/overload to fan disconnect
INPUT POWER L1
3 wire
L2
208/3 phase
from breaker
L3
Three phase, Wiring Connection Example
200V, 208V, 230V, 460V, and 575V also available
®
ST1 OL1
L1 T1 T1
Exh
L2 T2 T2
FAN 1
L3 T3 T3
ST2 OL2
L1 T1 T1
Exh
L2 T2 T2
FAN 2
L3 T3 T3
ST3 OL3
L1 T1 T1
Exh
L2 T2 T2
FAN 3
L3 T3 T3

Fire System Integration

A dedicated fire system microswitch needs to be wired
into the KFCC for all Type I hood systems. During a fire,
this will disengage supply starters, and therefore turn off
corresponding supply fans. If KFCC is configured with
"Exhaust in Fire" option, the KFCC will also engage the
exhaust starters, therefore turning on exhaust fans in
the event of a fire.
Dedicated Fire System Microswitch
• Common to terminal C1
• Normally-closed to terminal NC1
• Normally-open to terminal NO1
FS1
G
RD(RD) BR(BK)
C1
C
BK(YW)
NO
C2, NC2, and NO2 terminals are provided for a
second fire system microswitch. These terminals
are not wired to any components; they are simply
provided for a connection point only.
Wiring Multiple Fire Systems into KFCC
If wiring in multiple fire systems into one KFCC, a series
connection of normally-closed contacts (a dedicated
microswitch in each fire system) should be connected
G
between terminals C1 and NC1. All normally-open
wires from the microswitches used for the series
connection between C1 and NC1 should be connected
to terminal NO1.
• Common of first fire system switch to terminal C1
• Normally-closed of first fire system switch to
common of second fire system switch
• Normally-closed of second fire system switch to
terminal NC1
• Normally-open on both switches tie to terminal NO1
FS1
RD(RD)
NC
C1
G
C
NO
ANSUL
NC1
COM RD
N.C. BR
NO1
N.O. BK
NOTE
FS2
BR(BK) BR(BK)
NC
NC1
C
BK(YW) BK(YW)
NO
NO1
Kitchen Fan Control Center
® ®
AMEREX
(RD)
(BK)
(YW)
7