Temperature Display; General; Mounting The Unit - Aqua Power DHE 12 Manuel D'utilisation / D'installation

This manual must be read carefully before attempting to install the DHE water heater. If you do
not follow the safety rules or the instructions outlined in this manual, the unit may not operate
properly and it could cause property damage, serious bodily injury and/or death.
Aqua Power will not be liable for any damages because of failure to comply with the installation
and operating instructions outlined in this manual or because of improper use. Improper use
includes the use of this appliance to heat any liquid other than water. Failure to comply with the
installation and operating instructions or improper use voids warranty. Never remove the unit's
cover unless the electricity is turned off.
If you have any questions regarding the installation or operation of this water heater, or if you need
any additional installation manuals, please call our technical service line on 800-582-2213 (USA
and Canada only). If you are calling from outside the U.S. Or canada, please call USA 413-247-3380
and we will refer you to a qualified Aqua Power service representative in your area.
Figure legend
Figure legend
1 Temperature adjustment knob
2 Temperature scale

2.1 Temperature display

3 "Power" light
4 Knock-outs for wires
5 Safety thermal cut out
6 Outlet temperature sensor
7 Wiring block
8 Electronic control unit
9 Heating system
10 Flow sensor
11 Motor-operated valve
12 Cold water connection
13 Hot water connection
14 Hot valve (left)
15 Cold valve (right)
16 Sink
17 Water supply line for faucet/tap installation
3.

General

DANGER: WATER TEMPERATURES OVER 125 °F
!
CAN CAUSE SEVERE BURNS INSTANTLY OR DEATH
FROM SCALDING. A HOT WATER SCALDING PO-
TENTIAL EXISTS IF THE THERMOSTAT ON THE UNIT
IS SET TOO HIGH. HOUSEHOLDS WITH SMALL
CHILDREN, DISABLED OR ELDERLY PERSONS MAY
REQUIRE THAT THE THERMOSTAT BE SET AT 120 °F
OR LOWER TO PREVENT POSSIBLE INJURY FROM
HOT WATER.
The DHE and DHE Pro units are designed to supply hot water for a
house, apartment or certain commercial applications. Unlike a con-
ventional storage type water heater the DHE tankless water heater
does not store hot water. Instead, water is heated instantaneously as
it flows through the unit. The DHE offers greater energy efficiency than
storage type water heaters due to the absence of stand-by losses and
reduced hot water pipe runs.
The input of heat into the water is controlled electronically. The DHE
will deliver any water temperature between 86 °F (30 °C) and 140 °F
(60 °C). Please set the desired temperature using the knob on the front
cover. The DHE Pro Temperature adjustment knob can be set to: OFF,
86...140 °F (30...60 °C).
The DHE has a °F and a °C scale. The output temperature of the DHE
Pro is shown in the digital display in °F or °C units. (°F or °C units can
be selected during installation, factory setting: °F). The maximum tem-
perature is electronically limited to 140 °F (60 °C).
For reasons of appliance efficiency and durability (scaling),
the optimum temperature setting lies between 86 °F (30 °C)
and 120 °F (50 °C).
The outlet temperature of the DHE Pro can be limited (see "Initial
settings").
DHE units:
In case the "Power" LED is flashing while the unit operates, the water
flow rate exceeds the heating capacity of the unit. Reduce the hot
water flow rate in order to let the unit achieve the set point tem-
perature.
In case you have questions regarding the way you plan to use the DHE
unit, please call our technical service line at 800-582-2213 (USA and
Canada). For service outside the U.S. and Canada, please call us at USA
413-247-3380. You can also e-mail us at info@aptankless.com or fax us
at USA 413-247-3369.
The DHE can be used for the following applications.
G
1 Typical residential installation
G 2 Typical commercial installation
4.

Mounting the unit

NOTICE: UNIT MUST BE INSTALLED IN A VERTICAL
!
POSITION WITH THE WATER FITTINGS POINTING
DOWNWARD.
WARNING: DO NOT INSTALL UNIT WHERE IT
WOULD ROUTINELY BE SPLASHED WITH WATER.
ELECTRIC SHOCK MAY RESULT.
CAUTION: HOT WATER OUTLET PIPES LEAVING
UNIT CAN BE HOT TO THE TOUCH. INSULATION
MUST BE USED FOR HOT WATER PIPES BELOW 36"
DUE TO BURN RISK TO CHILDREN.
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