Groen CONVECTION COMBO CC-E series Operator's Manual page 9

1. Mounting
If you wish to install one Convection Combo™
above another, obtain a double-stacked unit from
the factory.
CAUTION
DO NOT INSTALL A CC20-E IN ANY LOCATION
WHERE RIGHT SIDE VENTS ARE BLOCKED, OR
WITHIN 12 INCHES OF A HEAT SOURCE SUCH
AS A BRAISING PAN, DEEP FRYER, CHAR
BROILER OR KETTLE.
DO NOT INSTALL THE UNIT TO THE LEFT OF
ANY OPEN FLAME EQUIPMENT.
To avoid drainage problems, level the unit front-
to-rear, or provide a slight pitch to the rear.
WARNING
T HE UNIT M UST
PERSONNEL QUALIFIED
ELECTRICITY AND PLUMBING.
INST ALLATION CAN CAUSE
P E R S O N N E L A N D / O R
EQUIPMENT.
CAUTION
INSTALLATION MUST BE IN ACCORDANCE
WITH ALL APPLICABLE CODES.
2. Electrical Supply Connections
a. Panel Removal
The right side panel must be removed to gain
access to the wiring and control
compartment. Remove the screw at the
back of the panel. Slide the panel toward
the front of the unit, lift it and set it aside.
b. Supply Voltage
The CC20-E must operate at the rated
nameplate voltage, plus or minus 10%.
c. Terminal block
The terminal block for incoming power is
located at the back of the control
compartment.
The ground terminal is found below the
terminal block. The Convection Combo™
must have a separate ground wire for safe
operation. The ground wire must be at least
8 AWG (3.3 mm) for a 100 amp circuit
B.MODEL CC20-E
BE INS T AL L E D B Y
TO WORK WITH
IMPROPER
INJURY T O
D A M A G E T O
breaker or 10 AWG (2.6 mm) for a 40 to 60
amp breaker.
d. Supply Wire
The type of wire needed is determined by
finding the operating voltage and phase from
the unit's back data plate and phase select
connector. Refer to the "Electrical Supply
Connection" label on the back of the unit for
correct wire size and insulation temperature
rating.
The specified wire must be used to comply
with Underwriters Laboratories and National
Electric Code requirements.
The knockout hole is sized for a one inch
(25.4 mm) conduit fitting.
CC20-E ELECTRICAL SUPPLY CONNECTION
(All wires copper only.
Reference: National Electrical Code)
Size for 75
Voltage
(THWN)
208 4 AWG (5.2 mm)
240 4 AWG (5.2 mm)
480 8 AWG (3.3 mm)
e. Branch Circuit Protection
Groen strongly recommends that each
Convection Combo™ have its own branch
circuit protection. A double stacked unit
should have separate protection for the
upper and lower steamer-ovens.
CURRENT DEMAND
Current per line
Voltage
208
240
480
Each current-carrying conductor must have
overcurrent protection. Refer to the label on
the back of the unit for proper wire size and
type. Watertight connections are required.
3. Water Supply Connection
A check valve (back siphonage device) must be
installed in the incoming cold water line in
keeping with local plumbing codes. Water line
pressure should be between 30 and 60 PSI (210
9
OM-CC-E
o o
C Size for 90 C (THHN)
6 AWG (4.1 mm)
6 AWG (4.1 mm)
8 AWG (3.3 mm)
(Three Phase)
65.4 A
56.7 A
28.3 A
Power
21 KW
21 KW
21 KW