Tabla de contenido
DHE Pro
Electrical details
Phase
Frequency
Voltage
Wattage
Amperage draw
Required number & size of circuit
breakers
1
(double pole)
Required wire size and number of runs
Connections
Water connection
Hydraulic data
Volume of water in unit
Volume of water in unit
Minimum water flow to activate unit
Minimum water flow to activate unit
Maximum permissible inlet temperature
Maximum permissible inlet temperature
Application limits
Maximum permissible pressure
Maximum permissible pressure
Test pressure
Test pressure
Features
Temperature display
Cover and back panel
Color
Dimensions
Height
Height
Width
Width
Depth
Depth
Weights
Weight
Weight
1
This is our recommendation as the manufacturer. Check local codes for compliance if necessary. Tankless water heaters are considered a non-continuous load.
2
Copper must be used. Conductors should be sized to maintain a voltage drop of less than 3% under load.
3
Requires a minimum of 200 A main service.
4
Requires a minimum of 300 A main service
5
29/Pro 29 & 36/Pro 36 may be wired for balanced 3-phase 208V. 15/Pro 15, 20/Pro 20, 24/Pro 24 may be wired for unbalanced 3-phase 208V.
*
DHE Pro models have Advanced Flow Control that automatically reduces the output flow rate to maintain the set temperature when demand temporarily
exceeds capacity
11. Troubleshooting
Symptom
No hot water
Not enough hot water
Water not hot enough
If you are not able to resolve a problem please contact us toll free
at 800-582-2213 before removing the unit from the wall. Aqua
Power is happy to provide technical assistance. In most instanc-
es, we can resolve the problem over the phone.
DHE Pro 12
612546
single
Hz
50/60
V
208
240
kW
9
12
A
44
50 2 x 26 2 x 30 2 x 35 2 x 40 2 x 44 2 x 50 3 x 35 3 x 40 3 x 44 3 x 50
A
1 x 60
2
AWG Copper
1 x 6/2
3/4˝ NPT
l
0.5
gal
0.13
l/min
1.4
GPM
0.37
°C
55
°F
131
MPa
1.0
PSI
150
MPa
2.0
PSI
300
digital
Sheet steel
gray
mm
369
in
14.52
mm
420
in
16.54
mm
117
in
4.61
kg
6.1
lb
13.5
Possible cause
– circuit breakers off
– safety thermal cut-out tripped
– not enough flow rate to activate unit
– filter screen clogged
– water flow rate too high
– voltage too low
DHE Pro 15
DHE Pro 20
612547
612548
single
5
single
5
50/60
50/60
208
240
208
240
10.8
14.4
14.4
19.2
2 x 40
2 x 50
2 x 8/2
2 x 8/2
3/4˝ NPT
3/4˝ NPT
1.0
1.0
0.26
0.26
1.9
1.9
0.50
0.50
55
55
131
131
1.0
1.0
150
150
2.0
2.0
300
300
digital
digital
Sheet steel
Sheet steel
gray
gray
369
369
14.52
14.52
420
420
16.54
16.54
117
117
4.61
4.61
7.3
7.3
16.1
16.1
Solution
– turn circuit breakers on
– reset safety thermal cut-out
– clean filter screen at unit
– clean faucet aerator or shower head
– clean filter screen at unit
– reduce water flow rate until power light on front
cover stops blinking
– supply correct voltage to unit
– 11 –
DHE Pro 24
3
DHE Pro 29
3
612549
612550
single
5
single
5
50/60
50/60
208
240
208
240
208
18
24
21.6
28.8
2 x 60
3 x 50
2 x 6/2
3 x 8/2
3/4˝ NPT
3/4˝ NPT
1.0
1.5
0.26
0.39
1.9
2.9
0.50
0.77
55
55
131
131
1.0
1.0
150
150
2.0
2.0
300
300
digital
digital
Sheet steel
Sheet steel
gray
gray
369
369
14.52
14.52
420
420
16.54
16.54
117
117
4.61
4.61
7.3
8.6
16.1
19
DHE Pro 36
4
612551
single
5
50/60
240
27
36
3 x 60
3 x 6/2
3/4˝ NPT
1.5
0.39
2.9
0.77
55
131
1.0
150
2.0
300
digital
Sheet steel
gray
369
14.52
420
16.54
117
4.61
8.6
19
Capítulos
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Solución de problemas
