The complete wiring schematic diagram for 240 Volt and 120 Volt
units is shown below in Figure 6 & 7.
qualified electrician. The voltage requirements and wattage load for the
water heater is specified on the rating plate on front of heater. Be certain
that the power supply provided is equivalent to that marked on the water
heater’s rating plate. All wiring must conform to local codes or, in the
absence of local codes, the latest edition of National Electrical Code
ANSI/NFPA 70.
The Specification Table (supplied separately with the water heater) recom-
mends minimum branch circuit sizing based on National Electric Code.
The branch circuit wiring must include either:
A.
Metallic conduit or metallic sheathed cable approved for use as a
grounding conductor and installed with fittings approved for the pur-
pose. (refer to Figure 5A)
B.
Non-metallic sheathed cable or metallic conduit or metallic sheathed
cable not approved for use as a ground conductor shall include a
separate conductor for grounding. It should be attached to the ground
terminals of the water heater and the electrical distribution box. (Refer
to Fig. 5B)
Be sure to follow local and national codes as well as any electric utility
requirements when making the connections.
Tank MUST BE full of water before power is turned on. Heating
elements WlLL BE DAMAGED if energized for even a short time
while tank is dry. The water heater’s warranty does not cover
damage or failure resulting from operation with an empty or
partially empty tank. (Refer to the limited warranty for complete
terms and conditions.)
8. PIPE WRAP —
To realize maximum energy savings, all exposed pipes
should be insulated. However, most of the energy losses occur close to the
water heater. Install one piece of insulation on the cold water supply line and
one piece on the hot water line. (Refer to Figure 8). Install the pipe wrap as
close to the water heater as the installation allows. Make sure fittings are cov-
ered and the joint in the pipe wrap is sealed.
The water heater tank is insulated with 2
1
/
2
” of foam insulation to stop heat
loss. More insulation is not needed. DO NOT install an insulating blanket.
6
Installation
Figure 7 — Complete Wiring Schematic Diagram — 120 Volt
Units
3
4
BLACK
GROUND
RED
YELLOW
BLUE
From 240 V
Power Source
Water Heater
Junction Box
High Limit
Switch
Temperature Control
Thermostat
BLACK
GROUND
WHITE
YELLOW
WHITE
From 120 V
Power Source
Water Heater
Junction Box
High Limit
Switch
Temperature Control
Thermostat
Figure 6 — Complete Wiring Schematic Diagram —240 Volt Units
Figure 8 — Pipe Wrap
Pipe Wrap
(Seal Tightly)
NOTE!
Do Not Cover or Block
This Opening on
Vacuum Valve
CAUTION
!