18
Electrical Connections cont.-
Branch Circuit Sizing Guide
Installation Checklist
Total Water
Heater Wattage
Recommended Over-Current
Protection (fuse or circuit breaker
amperage rating)
208V
240V
277V
480V
3,000
20
20
15
15
4,000
25
25
20
15
4,500
30
25
25
15
5,000
30
30
25
15
5,500
35
30
25
15
6,000
40
35
30
20
8,000
50
45
40
25
9,000
-
50
45
25
10,000
-
-
50
30
11,000
-
-
50
30
12,000
-
-
-
35
Total Water
Heater Wattage
Copper Wire Size AWG Based on
N.E.C. Table 310-16 (167ºF/75ºC.)
208V
240V
277V
480V
3,000
12
12
14
14
4,000
10
10
12
14
4,500
10
10
10
14
5,000
10
10
10
14
5,500
8
10
10
14
6,000
8
8
10
12
8,000
8
8
8
10
9,000
-
8
8
10
10,000
-
-
8
10
11,000
-
-
8
10
12,000
-
-
-
8
1.
Tank location:
–
Does room size require a louvered door, ducting kit, or similar ventilation? 10 ft x 10 ft x 7 ft or
700 ft
3
(19.8 m
3
), or 240 in
2
(0.15 m²) open air-flow area needed.
–
7 in (17.5 cm) clearance at the rear of the unit and at least 7 in (17.5 cm) clearance around the
sides of the unit. 6 in (15.2 cm) clearance for earthquake strap installations, with additional
clearance on the opposite side of the unit).
–
Front
of unit is free and clear.
–
Is the water heater level? If no, add shims under the base of the unit to ensure proper function of
sensors.
2.
Verify Air Filter is installed (located in packaging).
3.
Plumbing connections:
–
Ensure that air filter removal is not prevented.
–
Check for leaks after filling the tank with water, when water is or isn’t flowing.
4.
Condensate lines are in place:
–
Main flexible or rigid drain line must be installed and directed to a drain or condensate pump.
Reducer fittings are
not
recommended.
5.
Temperature and pressure-relief valve
is working and drain line completed per local code.
6.
Electrical:
–
Verify 208/240 VAC to L1 and L2 at tank.
–
Ensure that the electrical connection does
not
prevent air filter removal.
7.
Verify that the control panel displays 120ºF (49ºC) in Hybrid Mode. Assist user in how to adjust
temperature and modes (see “Water Temperature Adjustment” section).
Содержание RE2H50S 1NCWT Series
Страница 28: ...28 Notes...
