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ENGLISH
WWW.APTANKLESS.COM AQM TANKLESS ELECTRIC WATER HEATERS | 7
INSTALLATION
INSTALLATION INSTRUCTIONS
6.4 Incorrect use
The following are not permitted and will void the factory
warranty:
- Installation of the appliance where it is at risk
from frost
- Installation in rooms where the appliance is at risk from
explosions as a result of dust, gases or vapors
- Ignoring safety clearances and safety zones
- Incorrect power connection
- Operation of the appliance without water owing through
the unit, or with air in the lines (See section 8, “Initial start-
up”, pg. 8)
- Operation of the unit with the cover o
- Heating liquids other than potable water
6.5 First steps to be taken in the event of
malfunction
WARNING: ALWAYS SHUT OFF POWER AND WATER
TO THE UNIT PRIOR TO REMOVING THE FILTER
SCREEN. FAILURE TO DO SO MAY CAUSE SERIOUS BODILY
INJURY OR DEATH.
» Check the circuit breaker
» Check the lter screen for scale blockage or dirt
accumulation. See section 12, “Troubleshooting”, pg. 10.
6.6 Maintenance and care
!
MAINTENANCE WORK, SUCH AS CHECKING
ELECTRICAL SAFETY, MAY ONLY BE CARRIED OUT
BY A QUALIFIED INSTALLER.
WARNING: ALWAYS SHUT OFF POWER AND WATER
TO THE UNIT PRIOR TO REMOVING THE FILTER
SCREEN. FAILURE TO DO SO MAY CAUSE SERIOUS BODILY
INJURY OR DEATH.
Regularly clean and descale the lter screen located in the cold
water inlet connection and if necessary replace. Always shut o
power and water to the unit prior to removing the lter screen.
A damp cloth is su cient for cleaning of the unit's housing. Do
not use any abrasive or corrosive cleaning agents.
7. Installation instructions
Keep these instructions carefully and pass them on
to your successor in the event of a change in owner-
ship, in the event of maintenance and possible repair work
they should be passed to the quali ed installer for his or
her reference.
7.1 Mounting the unit
!
UNIT MUST BE INSTALLED WITH THE PLUMBING
CONNECTIONS POINTING DOWNWARD OR UP-
WARD ONLY.
WARNING: DO NOT INSTALL UNIT WHERE IT WOULD
ROUTINELY BE SPLASHED WITH WATER. ELECTRIC
SHOCK OR DEATH MAY RESULT.
» 1. Install AQM as close as possible to the hot water draw-o
point, for example, directly underneath the sink or next to
the shower stall.
» 2. Install AQM in a frost-free area. If frost may occur, remove
unit before freezing temperatures set in.
» 3. Leave a minimum of 5" of clearance on all sides for
servicing.
» 4. Remove plastic cover by removing screws located on the
left and right sides of the unit
B
.
» 5. Remove plastic backplate by pulling on the tab with a
screwdriver
B
.
» 6. Mount backplate securely to wall by putting two screws
through mounting holes
A B
.
» 7. Snap unit back onto mounting plate
B
.
» 8. Reinstall cover with screws on left and right side of unit
B
.
7.2 Plumbing connections
Note: if soldering near the unit is necessary, please
direct the ame away from the housing of the unit in
order to avoid damage. Excessive heat from soldering on cop
per pipes near the aqm may cause damage.
All plumbing work must comply with national and appli-
cable state and local plumbing codes.
» 1. All plumbing work must comply with national and
applicable 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
ushed to remove any scale and dirt.
» 4. Install isolating valve in cold water line as shown in
illustration
C
. This allows the unit to be isolated for
maintenance purposes.
» 5. Cold water connection (inlet) is on the right side of the
unit, hot water connection (outlet) is on the left side of unit.
» 6. Tankless water heaters such as the AQM are not required
to be equipped with a Pressure and Temperature Relief
Valve (except in Massachusetts). If the local inspector will
not pass the installation without a P+T valve, it should be
installed on the hot water outlet side of unit.
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