GENERAL INF
O
Electric Tankless Water Heater •
9
Point-of-Use Models
(For potable water heating only. Not for space heating.)
NOTICE: Models sorted by
Voltage
, then by
Wattage per Element
.
Model
Recommended
Breaker Size
(Amps)
Voltage
Number
of
Elements
Wattage
per Element
(KW)
Current per
Breaker
(Amps)
Recommended
Wire Size
*
(AWG)
Element Type
*P**-40-Y5
20
277
1
4
14.44
12
Single
*P**-60-Y5
25
277
1
6
21.66
10
Single
*P**-73-Y5
30
277
1
7.3
26.35
10
Single
*P**-90-Y5
40
277
1
9
32.49
8
Single
*
All wiring/conductors must be rated for 90°C or greater.
† Maximum recommended wire size is #6 cu AWG.
‡ This model may used with a 208 VAC supply. Use of 208 VAC may require different breaker and/or wire sizes.
Follow all code requirements.
Two-Chamber Models
(For potable water heating only. Not for space heating.)
NOTICE: Models sorted by
Voltage
, then by
Wattage per Element
.
Model
Recommended
Breaker Size
(Amps)
Voltage
Number of
Elements
Wattage per
Element (KW)
Current per
Breaker
(Amps)
Recommended
Wire Size
*
(AWG)
Element
Type
*2**-140-X5
40 amps each
(2 circuits)
208
2
7
33.65
8
Single
*2**-120-E5
60 amps
240
2
6.1
50
6
†
Single
*2**-140-E5
60 amps
240
2
7
58.34
6
†
Single
*2**-160-E5
40 amps each
(2 circuits)
240
2
8
33.33
8
Single
*2**-180-E5
40 amps each
(2 circuits)
240
2
9
37.5
8
Single
*
All wiring/conductors must be rated for 90°C or greater.
† Maximum recommended wire size is #6 cu AWG.
