Greenheck Fire Ready Hood - GRRS - Manual (Page 16)

16 Fire Ready Hood
ClockBox Wiring Diagram (if applicable)
ClockBox System Interface Diagram
1. An independent 110 VAC supply line is provided to
the ClockBox.
a. This supply line provides power to the ClockBox,
which is independent from the supply line to the
hood.
2. The ClockBox provides 110 VAC to the Power
Disconnect Assembly
3. The ClockBox provides control signal voltage (5VDC)
and logic control to the Touchscreen [HMI]
4. The Power Disconnect Assembly supplies the input
line to the stove/range as follows:
a. If an Electric Disconnect
- Controls the 110 VAC contactor coil allowing the
220 VAC supply line to the stove/range via the
NEMA 14-50 receptacle.
b. If a Gas Disconnect
- Open the solenoid valve allowing gas to flow to
the input line of the stove/range
c. If Dual Disconnect
- Both conditions 6.a.i and 6.b.i will apply
d. The above reference will be maintained for as long
as there is time left at the ClockBox, it will open
the contact in the timer, stopping the supply line
to the Power Disconnect, which in turn, will shut
off the stove.
NOTE
Some electric stoves/ranges have a warning light
to alert the user that the burners/coils are hot.
These warning lights will be off since the supply line
powering the stove/range is not present.
120VAC
INPUT
Supply Line
GND
N
H
Green
White
Black
Fuse
5.5 Amps
T3 T4 T5
24 VDC
Blue
Brown
T5
Green/
Yellow
Y0
Y1
Y2
Y3
COM
Y4
COM
Y5
COM
(NEG)
(POS)
Circ DIN
5 VDC
PLC
Black
Black
CLOCKBOX
Black
White
Green GND
T5 T4 T1
H N
A1 A2
PWR DISC
OUTPUT
Supply Line
White
Brown
Green
Black
Red
1 - SG
2 - SD
3 - RD
4 - (NEG)
5 - (POS)
SCREEN
TOUCH
T2
L N GND -V +V
POWER SUPPLY
H
N
HOOD 120VAC
INPUT
Supply Line
ClockBox
Touchscreen ClockBox
Touchscreen
110VAC to
Disconnect 110VAC to
Disconnect
110VAC
Supply Cable
110VAC
Supply Cable
110VAC
Supply Cable
110VAC
Supply Cable
110VAC to Hood 110VAC to Hood
5VDC
Communication
Wire
5VDC
Communication
Wire
Clock
Box
Clock
Box
®