Operating Guide

17 West Street | West Hatfield, MA 01088 | Toll Free 800.582.2213 | Phone [phone] | Fax [phone] | [e-mail] | www.aptankless.com
DHE Model Item Number 12 6124 46 15 6124 47 20 6124 4 8 24
3
6124 49 29
3
612450 36
4
612451
Pro 12 612546 Pro 15 612547 Pro 20 6125 4 8 Pro 24
3
612549 Pro 29
3
612550 Pro 36
4
612551
Phase
- 60/50 Hz Single Single
5
Single
5
Single
5
Single
5
Single
5
Voltage 240 V or 208 V 240 V or 208 V 240 V or 208 V 240 V or 208 V 240 V or 208 V 240 V or 208 V
Wattage 12 kW 9 kW 14.4 kW 10.8 kW 19.2 kW 14.4 kW 24 kW 18 kW 28.8 kW 21.6 kW 36 kW 27 kW
Amperage draw (see below
for required breaker size)
50 A 44 A 2 x 30 A 2 x 26 A 2 x 40 A 2 x 35 A 2 x 50 A 2 x 44 A 3 x 40 A 3 x 35 A 3 x 50 A 3 x 40 A
Required number & size
of circuit breakers (double pole)
1
1x 60 A 2 x 40 A 2 x 50 A 2 x 60 A 3 x 50 A 3 x 60 A
Required wire size
and number of runs (copper)
2
1 x 6/2 Awg 2 x 8/2 Awg 2 x 8/2 Awg 2 x 6/2 Awg 3 x 8/2 Awg 3 x 6/2 Awg
Maximum temperature @ 1.50 GPM
54 41 65 49 88 66 92 82 92 92 92 92
increase above ambient @ 2.25 GPM
36 27 43 37 58 44 73 54 87 66 92 82
water temperature @ 3.00 GPM
27 20 33 25 44 33 54 41 66 49 82 61
@ 4.50 GPM
- - - - 29 22 37 27 44 33 55 41
Minimum water ow
to activate unit
0.37
GPM
1.4 l/min
0.50 GPM
1.9 l/min
0.50 GPM
1.9 l/min
0.50 GPM
1.9 l/min
0.77 GPM
2.9 l/min
0.77 GPM
2.9 l/min
Volume of water in unit 0.13 gal / 0.5 l 0.26 gal / 1.0 l 0.26 gal / 1.0 l 0.26 gal / 1.0 l 0.39 gal / 1.5 l 0.39 gal / 1.5 l
Weight 13.5 lb / 6.1 kg 16.1 lb / 7. 3 kg 16.1 lb / 7. 3 kg 16.1 lb / 7.3 kg 19.0 lb / 8.6 kg 19.0 lb / 8.6 kg
Dimensions (H x W x D) 14 ½” / 369 mm x 16
5
/
8
” / 420 mm x 4
5
/
8
” / 117 mm
Max. inlet water temperature 131°F / 55°C
Working pressure 150
psi / 10 BAR
Tested to pressure 300 psi / 20 BAR
Water connections ¾” NPT
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 ow rate to maintain the set temperature when demand temporarily exceeds capacity
DHE Series Technical Data
*
ISO 9001
CERTIFIED
The Aqua Power DHE series is tested and
certied by WQA against NSF/ANSI 372
for lead free compliance.
Conforms to ANSI/UL Std. 499
Certied to CAN/CSA E335-1 &
E335-2-35