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To Electrical Distribution Panel
Union
Heat Trap
6" Min.
Hot Water
Outlet to Fixtures
Electrical Junction
Box
(Use only Copper
Conductors)
Jacket Access
Panels
Drain Valve
Auxiliary Catch Pan
Figure 2. — Typical Installation
rating label located on front of the heater (1 watt = 3.412 BTUH).
Connect the outlet of the relief valve to a suitable open drain so
that the discharge water cannot contact live electrical parts and
to eliminate potential water damage. Piping used should be of a
type approved for hot water distribution. The discharge line must
be no smaller than the outlet of the valve and must pitch down-
ward from the valve to allow complete drainage (by gravity) of
the relief valve and discharge line. The end of the discharge line
should not be threaded or concealed and should be protected
from freezing. No valve of any type, restriction or reducer coupling
should be installed in the discharge line.
5. TO FILL WATER HEATER — Make certain drain valve is com-
pletely closed. Open shut-off valve in cold water supply line.
Open each hot water faucet slowly to allow air to vent from the
water heater and piping. A steady flow of water from the hot water
faucet(s) indicates a full water heater.
!
WARNING
Tank MUST BE full of water before power is turned on. Heating ele-
ment(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 fail-
ure 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
copper conductors, overcurrent protective device and suitable
disconnecting means must be provided by a qualified electrician.
All wiring must conform to local codes or latest edition of the Na-
tional Electrical Code ANSI/NFPA 70.
Installation
Temperature & Pressure Relief Valve
Anode
Union
Heat Trap
6" Min.
Shut-Off
Valve
To Cold
Water
Thermal Expansion
Supply
Tank (if required)
Air Gap
6"
Relief Valve Discharge
Line to suitable open drain
The water heater is completely wired to the junction box inside
jacket at top front of water heater. An opening for
cal 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.
Figure 3. — Water Heater Junction Box.
Table 1 recommends minimum branch circuit sizing based on
National Electric Code. Refer to wiring diagram on back cover
of this manual for field wiring connections.
Recommended Over
P
Current Protection
Total
h
(Fuse or Circuit Breaker)
Water
a
Amperage Rating
Heater
s
Wattage
e
208V
240V
1
20
20
3,000
3
20
20
1
25
25
4,000
3
25
25
1
30
25
4,500
3
30
25
1
30
30
5,000
3
30
30
1
35
30
5,500
3
35
30
1
40
35
6,000
3
35
30
1
50
45
8,000
3
45
40
1
---
50
9,000
3
50
45
1
---
---
10,000
3
---
50
1
---
---
11,000
3
---
50
1
---
---
12,000
3
---
---
Table 1. —
Branch Circuit Sizing Guide Based on
N.E.C. ANSI / NFPA 70
4
⁄
" or
⁄
l
3
2
Copper Wire Size -
AWG Based on N.E.C.
Table 310-16 (75°C.)
277V
480V
208V
240V
277V
15
15
12
12
14
---
15
12
12
---
20
15
10
10
12
---
15
10
10
---
25
15
10
10
10
---
15
10
10
---
25
15
10
10
10
---
15
10
10
---
25
15
8
10
10
---
15
8
10
---
30
20
8
8
10
---
15
8
10
---
40
25
8
8
8
---
20
8
8
---
45
25
---
8
8
---
25
8
8
---
50
30
---
---
8
---
25
---
8
---
50
30
---
---
8
---
25
---
8
---
---
35
---
---
---
---
30
---
---
---
" electri-
4
480V
14
14
14
14
14
14
14
14
14
14
12
14
10
12
10
10
10
10
10
10
8
10
- Quick Links:
- Replacement Parts List
- Wiring Diagrams
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