Metro Therm 15 pipe downwards 905, 15 pipe upwards 906, 30 pipe downwards 907, 30 pipe upwards 910, 35 pipe upwards 909 User Manual
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TANKS
08:008-1902
ELECTRICAL
WATER HEATERS
Manual
Models 15, 30 and 35
Type 611, 905, 906, 907, 909 and 910
Type 905, 907
Type 906, 910
Model 15 pipe downwards
Type 905
METRO number: 119051004
Plumbing number: 345166200
Model 15 pipe upwards
Type 906
METRO number: 119061004
Plumbing number: 345167200
Model 30 pipe downwards
Type 907
METRO number: 119071004
Plumbing number: 345166400
Model 30 pipe upwards
Type 910
METRO number: 119101004
Plumbing number: 345167400
Model 35 pipe upwards
Type 909
METRO number: 119091001
Plumbing number: 345161034
Type 611
Model 35 pipe downwards
Type 611
METRO number: 116111004
Plumbing number: 345121100
Type 909
2
Contents
Transport 4
Position 4
Diagram 5
Plumbing installation 6
Electrical installation 8
User Guide 10
Maintenance 12
Troubleshooting 14
Guarantee terms 16
Declaration of compliance 18
3
Transport
Inspect the water heater for damage and missing parts immediately upon receipt. Report any
damage or missing parts to the carrier immediately. All carriage is the responsibility of the
recipient unless otherwise agreed.
Position
Installation can only be performed by an authorised plumbing installer, and in accordance
with the Danish Building Code.
Tank and pipes cannot be exposed to freezing. Position the tank close to its water supply and
a floor drain. Ensure that there is sufficient room for service and maintenance.
Important!
Check that the wall can bear the weight of the tank when full of water.
Type 906, 909 and 910 (pipe upwards) must stand on a firm, level surface.
4
Diagram
B Hot water outlet
C Cold water inlet
H Holes in mounting plate
J Drain spout
N Control box
O Indicator light
Q Electrical connection
W Removable plate
I CC measurements for mounting plate
Models 15-30 (type 905, 907) Models 15-30 (type 906, 910)
Model 35 (type 611)
Model 35 (type 909)
Dimensioned diagram
All dimensions are in mm.
Type no. Pipe
connection
905
906
907
909
910
611
i
h
i
h
h
i
Model Volume
(litres)
Net
weight
a a1 b c e f h i
15 14 16 450 35 300 390 70 110 103 255
15 14 16 450 35 300 390 70 110 103 255
30 26 22 525 65 345 460 70 138 103 255
35 33 25 380 25 540 380 100 105 -
30 26 22 525 65 345 460 70 138 103 255
35 33 23 700 30 300 300 70 50 183 160
-
5
Plumbing installation
Note following for installation
Installation can only be performed by an authorised plumbing/electrical installer, and in
accordance with the Danish Building Code.
• Installations shall comply with the Danish Building Code and all other relevant regulations
and provisions, including those for electrical and water installations.
• Check all technical data and information on the type plate.
• Check that all accessories are removed from the packaging.
• Check that there is easy access to the hot water tank.
• Flush all water pipes carefully before connection.
• Always perform pressure testing at water pressure of 10 bar when replacing a water heater
or service has been performed on pressurised parts.
• Never expose the heater to water pressure exceeding 1 MPa (10 bar).
• The heater is fitted with nylon bushings for the cold water connection and PEX pipes for the
hot water connection. These parts protect the enamel coating and must not be removed.
The installer shall instruct the user of the heater’s function, care and disposal.
Approvals
VA no. 3.23/DK 19559
Approved by DEMKO
Hot water tank
Test pressure 13.5 bar
Operating pressure 10 bar
Energy labels at www.METROTHERM.dk
Risk of corrosion
METRO THERM hot water tanks are made of enamelled steel, and protected by a magnesium
anode. If connections and pipes are copper or stainless steel, there can be risk of galvanic
corrosion at the point of connection.
The risk can be mitigated by using a PEX pipe adapter between tank and pipe installation.
Using softened water in a METRO THERM tank
Water softened using salt can be used in a METRO THERM hot water tank. Conductivity must
be kept under 100 mS/m (millisimiens per m), to be able to use the anode. Water pH value
must be between 6 and 9, and chloride content must be under 250mg Cl/l.
If this level of conductivity is exceeded, the anode current will be too high, degrading the
anode too rapidly. That will cause the water to smell. It may be necessary to remove the anode
to remedy this, which will invalidate the METRO THERM 5-year corrosion guarantee on the
inner tank.
Do not use demineralised water (double ion exchange), which will rapidly corrode the tank.
Demineralised water is also referred to as totally desalinated or deionised water.
6
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