4
Tank MUST BE full of water before power is turned on. Heating element(s)
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. (Reference is made to the
limited warranty for complete terms and conditions.)
6. ELECTRICAL CONNECTIONS — A separate branch circuit with cop-
per conductors, overcurrent protective device and suitable disconnect-
ing means must be provided by a qualified electrician. All wiring must
conform to local codes or latest edition of the National Electrical Code
ANSI/NFPA 70.
The water heater is completely wired to the junction bracket inside
jacket at top front of water heater. An opening for
l
/
2
” or
3
/
4
” electrical
fitting is provided for field wiring connections. (Refer to Fig. 3)
The voltage requirements and wattage load for the water heater is
specified on the rating plate on front of heater.
Table 1 recommends minimum branch circuit sizing based on Na-
tional Electric Code. Refer to wiring diagram on back cover of this
manual for field wiring connections.
The presence of water in the piping and water heater does not provide
sufficient conduction for a ground. Non-metallic piping, dielectric unions,
flexible connectors etc. can cause the water heater to be electrically iso-
lated.
The branch circuit wiring should 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.
Installation
Figure 2. — Typical Installation (Pictured from rear of heater
with Top Panel and Insulation Pad removed).
Figure 3. — Location of water connections on water heater
tank. (Pictured with top insulation pad removed
WARNING
!
Hot Water
Outlet to Fixtures
To Electrical Distribution Panel
(Use only Copper Conductors)
Shut-Off Valve in
Cold Water
Supply Line
Temperature & Pressure
Relief Valve
Wiring Junction
Bracket
Grounding Screw
To Electrical
Distribution Panel
Flexible Connectors for
Water Connections at
Tank Fittings
To Cold Water
Supply
Relief Valve Discharge
Line to suitable open drain
Anode
CAUTION
!
FRONT OF WATER HEATER
Anode Location
Cold Water
Inlet Coupling
Electrical
Junction
Bracket
Hot Water
Outlet Coupling
Temperature & Pressure
Relief Valve Coupling
Table 1. — Branch Circuit Sizing and Wire Size Guide Based
on N.E.C. ANSI / NFPA 70
P
Recommended Over
Total
h
Current Protection
Copper Wire Size -
Water
a
(Fuse or Circuit Breaker)
AWG Based on N.E.C.
Heater
s
Amperage Rating
Table 310-16 (75°C.)
Wattage
e 208V
240V
277V
480V
208V
240V
277V
480V
3,000
1
20
20
15
15
12
12
14
14
3
20
20
---
15
12
12
---
14
4,000
1
25
25
20
15
10
10
12
14
3
25
25
---
15
10
10
---
14
4,500
1
30
25
25
15
10
10
10
14
3
30
25
---
15
10
10
---
14
5,000
1
30
30
25
15
10
10
10
14
3
30
30
---
15
10
10
---
14
5,500
1
35
30
25
15
8
10
10
14
3
35
30
---
15
8
10
---
14
6,000
1
40
35
30
20
8
8
10
12
3
35
30
---
15
8
10
---
14
8,000
1
50
45
40
25
8
8
8
10
3
45
40
---
20
8
8
---
12
9,000
1
---
50
45
25
---
8
8
10
3
50
45
---
25
8
8
---
10
10,000
1
---
---
50
30
---
---
8
10
3
---
50
---
25
---
8
---
10
11,000
1
---
---
50
30
---
---
8
10
3
---
50
---
25
---
8
---
10
12,000
1
---
---
---
35
---
---
---
8
3
---
---
---
30
---
---
---
10
