Water Connections; Electrical Connection - Aqua Power DHE 12 Manuel D'utilisation / D'installation

NOTICE: THIS UNIT SHOULD NOT BE INSTALLED
!
IN A LOCATION WHERE IT MAY BE EXPOSED
TO FREEZING TEMPERATURES (LESS THAN 36
°F). IF THE UNIT MAY BE SUBJECT TO FREEZING
TEMPERATURES ALL WATER MUST BE DRAINED
FROM THE UNIT. FAILURE TO COMPLY WITH
THIS INSTRUCTION VOIDS ALL WARRANTIES.
THE UNIT SHOULD BE LOCATED IN AN AREA WHERE
WATER LEAKAGE FROM THE UNIT OR CONNEC-
TIONS WILL NOT RESULT IN DAMAGE TO THE AREA
ADJACENT TO THE UNIT. IF SUCH A LOCATION
CANNOT BE AVOIDED IT IT RECOMMENDED THAT
A DRAIN PAN BE INSTALLED UNDER THE UNIT.
1. Install DHE as close as possible to the main hot water draw-
off points.
2. Install DHE in a frost free area. If frost might occur, remove
unit before freezing temperatures set in.
3. Leave a minimum of 5" of clearance on all sides for servicing.
4. Remove the cover screw with a #2 Pozi-drive screwdriver
and open the cover C .
5. Mount unit securely to wall by putting at least three screws
through mounting holes E
Screws and plastic wall anchors for mounting on masonry
or wood are provided.
5.

Water connections

NOTICE: EXCESSIVE HEAT FROM SOLDERING ON COP-
!
PER PIPES NEAR THE DHE MAY CAUSE DAMAGE.
THE COLD WATER CONNECTION TO THE UNIT MUST
BE DISCONNECTED PERIODICALLY IN ORDER TO
CLEAN THE FILTER SCREEN. IT IS REQUIRED TO USE
WATER CONNECTIONS THAT ARE EASILY DETACH-
ABLE SUCH AS BRAIDED STEEL FLEX CONNECTORS.
NOTICE: HARD WATER OR WATER WITH A HIGH
!
MINERAL COUNT MAY DAMAGE THE UNIT. DAM-
AGE TO THE UNIT CAUSED BY SCALE OR A HIGH
MINERAL COUNT IS NOT COVERED UNDER THE
WARRANTY.
1. All plumbing work must comply with national and applica-
ble state and local plumbing codes.
2. A pressure reducing valve must be installed if the cold water
supply pressure exceeds 150 PSI (10 bar).
3. Make certain that the cold water supply line has been flushed
to remove any scale and dirt.
D Also, the DHE unit has a built in filter screen
4.
be cleaned from time to time. Clean screen and put the
screen and the washer
5. The cold water connection (inlet) is on the right side of the
unit, and the hot water connection (outlet) is on the left side
of the unit.
6.
NOTICE: TANKLESS WATER HEATERS SUCH AS THE
!
DHE ARE NOT REQUIRED TO BE EQUIPPED WITH
A PRESSURE AND TEMPERATURE RELIEF VALVE
(P&T). IF THE LOCAL INSPECTOR WILL NOT PASS
THE INSTALLATION WITHOUT A P&T, IT SHOULD
BE INSTALLED ON THE HOT WATER OUTLET SIDE
OF THE UNIT.
1 - 3 .
1 that should
2 back into their original position.
7. The hot water outlet of a DHE is designed for connection to
copper tubing, PEX tubing or a braided stainless steel hose
(recommended) with a 3/4" NPT female tapered thread.
The plumbing on the cold water inlet side needs to
be such that it can easily be removed to allow access
to the inlet filter screen. The easiest way to achieve
this is to us a stainless steel braided hose connector.
If soldering near the unit is necessary, please direct the flame
away from the housing of the unit in order to avoid damage.
8. When all plumbing work is completed, check for leaks and
take corrective action before proceeding.
6.

Electrical connection

WARNING: BEFORE BEGINNING ANY WORK ON
!
THE ELECTRIC INSTALLATION, BE SURE THAT MAIN
BREAKER PANEL SWITCHES ARE "OFF" TO AVOID
ANY DANGER OF ELECTRIC SHOCK. ALL MOUNT-
ING AND PLUMBING MUST BE COMPLETED BE-
FORE PROCEEDING WITH ELECTRICAL HOOK-UP.
WHERE REQUIRED BY LOCAL, STATE OR NATION-
AL ELECTRICAL CODES THE CIRCUITS SHOULD BE
EQUIPPED WITH A "GROUND FAULT INTERRUPTER".
THE UNIT MUST BE PROPERLY GROUNDED IN AC-
CORDANCE WITH STATE AND LOCAL CODES, OR
IN ABSENCE OF SUCH CODES, IN ACCORDANCE
WITH NATIONAL ELECTRIC CODE OR THE CANA-
DIAN ELECTRIC CODE. FAILURE TO ELECTRICALLY
GROUND THE PRODUCT COULD RESULT IN SERI-
OUS PERSONAL INJURY OR DEATH.
1. All electrical work must comply with national and applicable state
and local electrical codes.
H The DHE should be connected to properly grounded ded-
2.
icated branch circuits of proper voltage rating. Ground must
be brought to the "Ground" at the circuit breaker panel.
DHE 12/Pro: These units can be connected to a single circuit.
Use a supply cable protected by a double pole breaker (see
2 ). The DHE 15 to 36 must have multiple power sources.
DHE 15, 20 or 24/Pro: These units require two independant
circuits. Use two supply cables protected by two separate double
pole breakers (see 2 ).
DHE 29 or 36/Pro These units require three independant circuits.
Use three supply cables protected by three separate double pole
breakers (see 2 ).
Please refer to the technical data table for the correct wire and
circuit breaker size. In all cases, make sure that the unit is properly
grounded.
3. Cut the electrical connection cable to length and strip.
4. The wire must be fed through the knock-outs located between
the hot and cold water connections
must be connected to the slots on the terminal block marked L1
and L2. The ground wire must be connected to slot marked with
the ground symbol (see
– 8 –
15 (380)
A H 1
, . The "live" wires
I
).