Blodgett SC-E Series - Manual (Page 9)

OM-SC-E 7
A. Electrical Supply Connection
1. Access for Connection, Panel Removal
Open the wiring and control panel by removing screws from the front
panel. Lift the panel, and swing its bottom toward you. Set the panel aside.
2. Supply Voltage
The unit must be operated at the rated nameplate voltage. A temporary
fluctuation of plus or minus 10 percent is acceptable.
3. Phase Selection
Refer to the steamer schematic (at the back of this manual) for wiring
information.
4. Terminal Block
The terminal block for incoming power is located at the back of the control
compartment. The ground terminal is located in the wiring compartment
next to the terminal block. The unit must have a separate ground wire for
safe operation. Minimum size for the ground wire is 10 AWG.
5. Supply Wire
To determine the type of wire you need for the power supply, find the
operating voltage and number of phases on the unit data plate. Refer to the
table provided on the next page or to the label on the unit’s back for the
correct wire size and insulation temperature rating. The “Electrical Supply
Connection” label inside the unit gives directions for proper connection
of the terminal block jumpers. The wire specified has to be used, or the
unit will not meet Underwriters Laboratories and National Electrical Code
requirements.
6. Branch Circuit Protection
Each conductor must have over-current protection. Refer to the label on
the back of the unit for the proper wire type and size. Connections to the
unit must be watertight. We strongly recommend that the steamer have its
own branch circuit protection. Current and power demands for the different
units are as follows:
WARNING
THE UNIT MUST BE INSTALLED BY
PERSONNEL WHO ARE QUALIFIED TO
WORK WITH ELECTRICITY AND PLUMBING.
IMPROPER INSTALLATION CAN CAUSE
INJURY TO PERSONNEL AND/OR DAMAGE
TO THE EQUIPMENT. THE UNIT MUST BE
INSTALLED IN ACCORDANCE WITH
APPLICABLE CODES.
CAUTION
DO NOT INSTALL THE UNIT WITH THE RIGHT
SIDE VENTS BLOCKED OR WITHIN 12 INCHES
OF A HEAT SOURCE (LIKE A BRAISING PAN,
DEEP FRYER, CHAR BROILER, OR KETTLE).
TO AVOID DRAIN PROBLEMS, LEVEL THE
UNIT FRONT TO BACK.
Installation
Control
Box
UNIT
FRONT
The knockout hole is sized for a one inch
conduit fitting. Pass the wire up the back
through this knockout hole to the front. Make
the connections from the front.
WARNING
TO AVOID DAMAGE OR INJURY, FOLLOW THE
ELECTRICAL SCHEMATIC EXACTLY WHEN
CONNECTING THE UNIT.
ELECTRICAL SUPPLY CONNECTIONS
VOLTAGE PHASE WIRING REQUIRED
MAXIMUM
CURRENT
POWER
208 1
#2 AWG copper only, at least 75 °C
#3 AWG copper only, at least 90 °C
92 AMP 19 Kw
208 3
#4 AWG copper only, at least 75 °C
#6 AWG copper only, at least 90 °C
53 AMP 19 Kw
240 1
#3 AWG copper only, at least 75 °C
#4 AWG copper only, at least 90 °C
80 AMP 19 Kw
240 3
#6 AWG copper only, at least 75 °C
#8 AWG copper only, at least 90 °C
46 AMP 19 Kw
480 3
#10 AWG copper only, at least 75 °C
#10 AWG copper only, at least 90 °C
23 AMP 19 Kw
480 1
#10 AWG copper only, at least 75 °C
#10 AWG copper only, at least 90 °C
40 AMP 19 Kw