ECO ULTRA Electric Boiler
Installation, Use and Care Manual
(Revision June 2017)
, Page
3.
Section 1 : TECHNICAL SPECIFICATIONS
1.1 POWER AND DIMENSIONS
Table 1: Boiler specifications 208V/240V/1ph.
1
:
Model
ECO ULTRA
Power
(kW)
Heating
Elements
Amperage
2
Suggested
electrical
cable
at 240V
3
Suggested
Breaker/Fuse
at 240V
3
208 V
240V
208 V
240V
cu
al
4.5
3.4
4.5
1 x 4,5 kW
16.3
18.9
10
10
30
7.5
5.6
7.5
1 x 4.5 kW +
1 x 3 kW
27.2
31.2
8
6
40
9
6.8
9
2 x 4,5 kW
32.6
37.5
8
6
50
12
9
12
2 x 6 kW
43.5
50
6
4
70
15
11.2
15
2 x 3 kW +
2 x 4,5 kW
54.3
62.5
6
4
80
18
13.5
18
4 x 4,5 kW
65.2
75
4
2
100
20
15
20
4 x 5 kW
72.5
83.3
3
2
110
24
18
24
4 x 6 kW
87
100
2
0
125
27
4
20.3
27
6 x 4,5 kW
97.9
112.5
1
00
150
29
4
21.8
29
2 x 4,5 kW +
4 x 5 kW
104
120
1
00
175
1
Electrical supply: 120/240V or 120/208V single-phase (L1
– N – L2) with three 90°C conductors, or two conductors
L1
– L2 if the boiler does not require power to a 120 VAC pump or accessories.
2
Add the amperage of the circulating pump and other external accessories if they are connected to the boiler (max.
5A).
3
A higher cable size could be required. In all cases the local electrical code has priority. The electrician has the
responsibility to select the appropriate size.
4
These models are only available on the ECO ULTRA 70.
Maximum operating pressure on the tank: 207 kPa / 30 psi
Tank temperature range : 10°C to 88°C (50°F to 190°F)
1 kW = 3412 BTU/h
Table 2: Dimensions:
ECO ULTRA 50
ECO ULTRA 70
Height
56-
7/16’’
66-
7/16’’
Diameter
22’’
24’’
Depth (with door)
25-1/2
’’
28’’
Weight
280 lb
380 lb
Heating supply
1’’ NPTM
1-
1/4’’ NPTM
Heating return
1’’ NPTM
1-
1/4’’ NPTM
