OM-HY/6E 7
Installation & Start-Up
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.
ELECTRICAL SUPPLY CONNECTION
1. Panel Removal
Open the wiring and control panel by removing the screws on the right side panel.
Slide the panel forward, and set it aside.
2. Supply Voltage
The unit must be operated at the rated nameplate voltage.
3. Phase Selection
Refer to heater schematics (Page 28) 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 near
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 below or
to the label on the unitʼs back for correct wire size and temperature rating. The
equipment grounding wire must comply with the National Electrical Code (NEC)
requirements. The schematic on the inside of the unitʼs right side cover gives
directions for proper connection of the terminal block jumpers. The specified
wire must be used, or the unit will not meet Underwriters Laboratories and NEC
requirements. The knockout hole is sized for a 1 inch conduit fitting. Pass the wire
up the back through this knockout hole to the front. Make the connections from the
front.
FIELD WIRING TABLE - USE COPPER WIRE ONLY - INSULATION RATING THHN (90ºC)
VOLTAGE
WIRING REQUIRED
MAXIMUM
CURRENT
POWER
208 1 PHASE
#2 AWG COPPER ONLY, AT LEAST 75
º
C
#3 AWG COPPER ONLY, AT LEAST 90ºC
92 AMP
19 KW
208 3 PHASE
#4 AWG COPPER ONLY, AT LEAST 75ºC
#6 AWG COPPER ONLY, AT LEAST 90ºC
53 AMP
19 KW
240 1 PHASE
#3 AWG COPPER ONLY, AT LEAST 75ºC
#4 AWG COPPER ONLY, AT LEAST 90ºC
80 AMP
19 KW
240 3 PHASE
#6 AWG COPPER ONLY, AT LEAST 75ºC
#8 AWG COPPER ONLY, AT LEAST 90ºC
46 AMP
19 KW
480 3 PHASE
#10 AWG COPPER ONLY, AT LEAST 75ºC
#10 AWG COPPER ONLY, AT LEAST 90ºC
23 AMP
19 KW
480 1 PHASE
#10 AWG COPPER ONLY, AT LEAST 75ºC
#10 AWG COPPER ONLY, AT LEAST 90ºC
40 AMP
19 KW
CAUTION
DO NOT INSTALL THE UNIT WITH THE RIGHT
OR LEFT SIDE VENTS BLOCKED OR WITHIN
12 INCHES OF A HEAT SOURCE (SUCH AS A
BRAISING PAN, DEEP FRYER, CHAR BROILER
OR KETTLE). TO AVOID DRAINAGE PROBLEMS,
LEVEL THE UNIT FRONT TO BACK.
CAUTION
EACH UNIT MUST HAVE A SEPARATE
GROUND WIRE FOR SAFE OPERATION.
WARNING
TO AVOID DAMAGE OR PERSONAL INJURY,
FOLLOW THE ELECTRICAL SCHEMATIC
EXACTLY WHEN CONNECTING THE UNIT.
