RA-‐OM-‐713
6
CONNECTION TO POWER SUPPLY
WARNING:
YOUR SEISCO
®
MUST BE INSTALLED AND SERVICED BY QUALIFIED PERSONNEL. DAMAGE TO
YOUR UNIT, SERIOUS PERSONAL INJURY OR DEATH MAY OCCUR IF INSTALLED OR HANDLED
IMPROPERLY. CARE MUST ALWAYS BE USED TO AVOID ELECTRICAL ACCIDENTS WHEN INSTALLING OR
SERVICING. NEVER USE PARTS THAT ARE NOT ORIGINAL EQUIPMENT OR APPROVED ALTERNATE
REPLACEMENT PARTS.
NOTE:
THIS WATER HEATER MUST BE INSTALLED TO MEET THE CURRENT NATIONAL ELECTRIC
CODE, AND ANY APPLICABLE LOCAL PLUMBING, ELECTRICAL, HEATING AND AIR CONDITIONING
CODES
.
Install wiring (see wiring diagram) from the unit to the Main Power Circuit Breaker Panel. Connect
the wiring to the unit as shown on the wiring diagram attached to the inside of the unit's cover.
ELECTRICAL INSTALLATION GUIDE
WARNING
MOST MODELS REQUIRE MULTIPLE POWER SOURCES.
WHEN WIRED DIRECTLY TO THE BREAKER BOX, THEY
REQUIRE MORE THAN ONE DOUBLE POLE CIRCUIT
BREAKER.
RISK OF ELECTRICAL SHOCK
. HEATING ELEMENT IS
NOT GROUNDED. ALL UNITS CAN HAVE MULTIPLE
POWER SUPPLIES. DISCONNECT ALL POWER SUPPLIES
BEFORE SERVICING.
IF USING STRANDED WIRE, MAKE SURE THAT ALL
STRANDS ARE IN SECURELY PLACED IN THE TERMINAL
BLOCK. A LOOSE STRAND IN CONTACT WITH THE
CIRCUIT BOARD CAN IMPAIR PERFORMANCE OR
DAMAGE THE BOARD.
HEATER SUPPLY SIDE CONNECTION
FOR TWO CHAMBER MODELS INSTALLED WITH A
SINGLE BREAKER AND WITH JUMPERS INSTALLED ON
THE CIRCUIT BOARD, ONE PAIR OF WIRES SHOULD BE
ATTACHED WITHIN THE UNIT AT POWER CIRCUIT 1
(CKT 1)-‐ONE WIRE TO L1 AND ONE WIRE TO L2. FOR
TWO CHAMBER MODELS INSTALLED WITH A TWO
BREAKERS AND WITH JUMPERS REMOVED (OR FOUR
CHAMBER MODELS WITH JUMPERS INSTALLED), A
SECOND PAIR OF WIRES MUST ALSO BE ATTACHED AT
POWER CIRCUIT 2 (CKT2)-‐ ONE TO Ll AND ONE TO L2.
FOR FOUR CHAMBER MODELS WITH JUMPERS
REMOVED, A THIRD AND FOURTH PAIR OF WIRES ARE
REQUIRED FOR POWER CIRCUITS 3 AND 4 (CKT 3 &
CKT 4).
JUMPERS ARE FACTORY INSTALLED ON SMALLER KW
MODELS AND ARE INCLUDED IN THE BOX FOR
OPTIONAL INSTALLATION ON LARGER KW MODELS.
CONSULT THE WIRING DIAGRAM OR SEISCO
CUSTOMER SERVICE FOR ADDITIONAL INFORMATION.
WHERE
REQUIRED
BY
CODE
USE
A
DISCONNECT SWITCH ADJACENT TO THE
WATER HEATER. WHEN MAKING THIS TYPE OF
INSTALLTION, BE SURE THE MAIN FEEDER
WIRES USED ARE PROPERLY SIZED.
MAIN POWER CIRCUIT BREAKER