Metro Therm 60 User manual

78:013-1603
Manual
Smart Control model 60, 110 and 160
Type 206 ECO, 211 ECO and 216 ECO
ELECTRICAL WATER HEATERS
78:013-1603

2
Model 60 – 3 kW , Smart Control
Type 206 ECO
METRO-number: 112061003
VVS-number: 345181360
Model 110, Smart Control
Type 211 ECO
METRO-number: 112111003
VVS-number: 345181560
Model 160, Smart Control
Type 216 ECO
METRO-number: 112161003
VVS-number 345181760
Type 206 ECO
Type 216 ECO
Type 211 ECO

3
Table of Contents
Transport 4
Placement 5
Drawing 6
Hot Water Heater-setup 7
Electrical Setup 9
User’s Guide 11
Maintenance 15
Troubleshooting 17
Warranty provisions 18
Declaration of conformity 19

4
Transport
Immediately upon receipt, inspect the water heater for integrity and absence of damage. If
there is damage, report it to the transport company immediately. The recipient is responsible
for shipping unless otherwise agreed.

5
Placement
Installation of the water heater may be carried out only by an authorized HVAC Installer and
in accordance with building regulations. The water heater with attached tubes must be lo-
cated in a frost free area. The water heater should be set up close to a main faucet and close
to a oor drain. The water heater must be located so that there is room for maintenance and
service.
The Electric water heater must always be mounted vertically and with the pipe stubs down-
wards.
For wall-mounted models, the distance to the oor must be min. 400 mm and the distance
to ceiling should be min. 200 mm (Figure 1). When hanging the water heater, the supplied
mounting bracket must be used.
Please be aware that the wall must be able to support the weight of the tank including
water.
Water heater models 60, 110 and 160 – as an option – can be supplied with a stand and
support plates with adjustable feet, making it possible to level the water heater on a solid,
at oor.
Figure 1
200 mm
400 mm

6
Type No. Model Volume
(litres)
Net weight
(kg)
a a1 b c e f h i
206 ECO 60 56 48 875 40 390 390 100 60 175 255
211 ECO 110 98 59 1030 40 460 460 100 70 175 255
216 ECO 160 142 76 1400 40 460 460 100 70 175 255
Model 60-110-160 (type 206 ECO, 211 ECO, 216 ECO)
Diagram
B Hot water output
C Cold water input
G Socket 3/4” with stopper (for
circulation)
H Holes in mounting bracket
I CC measurements at mounting
bracket
Dimensions
All measurements are shown in mm.

7
Hot Water Heater setup
Note the following when installing
• Installations must comply with building regulations along with other relevant regulations
and provisions, including requirements for electricity and water installation.
• Check all technical data and information on the data plate.
• Make sure that all accessories are unpacked.
• Ensure that there is easy access to the water heater. An external shut-off valve must be
installed on the input to the water heater.
• Prior to being connected, water pipes must be carefully cleaned.
• The water heater must never be exposed to water pressure in excess of 1 MPa (10 bar).
Installation of the water heater may be carried out only by an authorized HVAC Installer and in
accordance with the relevant building code.
Approvals
VA-no. 3.23/19559
Risk of corrosion
METRO THERM storage tanks are constructed from enameled steel and protected by a magne-
sium anode. If the connections and the rest of the piping is made of copper or stainless steel,
there may be risk of galvanic corrosion at the connections. The risk of galvanic corrosion can
be minimized by using a PEX-tube transition piece between the tank and the pipe installation.
Failures resulting from such risk are not covered by the METRO THERM warranty.
The Water heater is supplied with PEX bushings for cold and hot water connections.
These bushings protect the enamel coating and must not be removed.
The water heater is to be installed as a pressure tank with a shut-off valve, check valve, and
safety valve such as a METRO safety system. The safety system must be placed as shown in
Figure 2.
The use of soft water in METRO THERM tank
Salt based soft water may be used in a METRO THERM hot water tank. It would however be
a good idea to remove the anode before the tank is put into use, since otherwise the anode
may degrade. If the anode breaks down, water may begin to smell, glass in dishwashers may
become milky white, and hydrogen sulphide may be formed, causing the tank to bubble.
Do not use demineralised water (double ion-exchanged) as the tank will then corrode in a
short time. Demineralized water is also referred to as totally desalinated water and de-ionized
water.
1. Water input (cold) 3/4” shut off valve
2. Check valve (built-in)
3. Relief Valve
4. Overow 3/4”
5. Drain spout
B Hot water out 3/4”
C Cold water in 3/4”
Figure 2
CB
4
5
321
Hot water tank
Test pressure 13 bar
Operating pressure 10 bar

8
Security system
The safety valve shall be located in the water input near the tank and be readily accessible
for testing and inspection. The connection pipe between the safety valve and the tank and
the overow from the safety valve must not be capable of being blocked. Opening min.
3/4”(Ø 20 mm). The overow should discharge visibly and unobstructedly to a drain and
should not discharge outside due to the risk of frost.
The safety valve must at least be able to relieve the water heater’s rated power. By using a
METRO security system (Figure 3), this requirement is fullled. As the water expands during
heating (approximately 2%), the safety valve drain will drip during warm-up.
Installation of circulation
A plastic plug is located in the top plate. Under it (in the insulation) is a sleeve (3/4” internal
RG) with a stopper (NV 26).
Forced circulation
We recommend forced circulation with a pump mounted with a circulations set (supplied as
an accessory). The circulation set consists of an enamelled extension pipe for mounting in the
top of the water heater and a PEX-pipe for extending into the water heater (Figure 4).
Natural circulation
If the water heater is connected to natural circulation, the hot water outlet must be con-
nected at the top of the water heater. The circulation pipe connects to the hot water outlet at
the bottom and the PEX pipe in the hot water tank shall be shortened to 2/3” in length.
Note
The user shall be made aware of the heat loss from the circulation line and the resulting
operating costs. Circulation can be controlled by a timer.
In cases of high circulation losses, the circulation may result in disruptions if the control is set
to ECO operation. In these cases, it may be necessary to switch control to manual operation
and control the temperature in the tank in the same manner as with an ordinary electric
water heater.
1. Water input (cold) 3/4 “shut off valve
3. Relief Valve
4. Overow 3/4”
5. Drain cock
C Cold water in 3/4”
Figure 3
C
53
1
4
Figure 4

9
Electrical Setup
The electrical installation should be performed only by a certified
electrician.
The water heater is constructed as class IP24 and must always have extra protection
according to the LVD directive.
The water heater is equipped with a Smart Control containing an operation thermostat, an
excess temperature reset and a display for setting various control schemes and temperature
levels.
Smart Control
The water heater is supplied with a resettable Thermal Cut Out thermostat. The Thermal Cut Out
thermostat may be reset only by an authorized installer. The Thermal Cut Out thermostat sits
behind the plastic plug in the bottom plate near the manual reset button.
The Smart Control with thermostat and Thermal Cut Out thermostat is mounted behind the
bottom plate on the water heater. The Smart Control display for setting the various control
schemes and temperature levels is located at the bottom in the front.
Note: The sensor tube from the thermostat and the Thermal Cut Out thermostat sensor must be
inserted as far from the spade connector on the heating element as possible.
Electric heater - up to and including 3 kW
3 kW / 400 V - 1 kW / 230 V
The standard heater element can be connected to 400 V (3 kW) or 230 V (1 kW), see the
electric diagram.The water heater is delivered from the factory with a 4-wire cable (cable
without connectors) that must be connected to the xed installation. If it is damaged, it must be
replaced with a new cable (purchased as a spare part).
Note: Before power is
connected, the water
heater must be filled with
water.

10
Smart Control
Electrical diagram 3 kW (1 kW)
Type 206 ECO, 211 ECO og 216 ECO

11
User Guide
Read this manual carefully before installation and before putting the water heater into service.
Safety guidelines
Installation, initial startup, and maintenance of this product may be performed only by autho-
rised HVAC/electrical Installers who will be responsible for adherence to applicable standards
and installation regulations. We accept no liability for damage caused by not complying with
safety regulations.
Flooding and frost risk
If the water heater is installed in a vacation home or an all-year residence from which you are
away for an extended period of time, the water heater and the pipe installation should be pro-
tected against frost damage by completely emptying the water heater. If there is no risk of frost,
it is sufcient to shut off the main water supply where the water comes into the building.
Smart Control
The Smart Control reads the actual consumption pattern in the household’s hot water usage and
heats only the amount of water that will be used.This saves energy and ensures that there is
always a sufcient amount of hot water.
Smart Control Display
Level Meter
Function
Vacation
Manual
ECO
Function selector
Level
4
3
2
1
+
–

12
Start-up
When switching on power to the water heater – at the switch in the xed installation – the
Smart Control will perform a short test; each of the seven LEDs will light up in turn. After a few
seconds, the operational function ECO automatically switches on, using comfort level 2, and the
water heater is put in operation. The LED next to the applied comfort level ashes when heater
is turned on.
Control features
The Smart Control has three different control functions: ECO, Manual, and Vacation. The desired
function is selected by pressing the mode selector button until the LED of the desired function
lights up
• ECO
Economy mode:The Smart Control continuously monitors the actual consumption pattern in
the household’s hot water usage and then heats only the amount of water to be used.
The consumption pattern observed during week 1 is used as a forecast for the heating of
the required amount of hot water, at the right time, in week 2. If the consumption pattern
changes, the Smart Control will automatically adapt for the next week.
You can choose between four levels of comfort, 1 to 4, by pressing the level selector buttons
+ (arrow up) and (arrow down) until the LED next to the desired comfort level lights up.
The lowest comfort level is no. 1. It uses less energy and replicates the previous week’s
actual hot water consumption pattern.The higher the comfort level, the greater the amount
of extra hot water usage compared to the forecast. Therefore, it is more likely that there is
always enough hot water – but the energy consumption is higher.
The factory setting is comfort level no. 2, which is also used in connection with the factory
test for energy labeling of the electric water heater.

13
• Manual
The Smart Control serves as a traditional Electrical hot water heater-thermostat, where the
entire water volume is heated to the selected temperature. You can choose temperature
levels between four levels of comfort, 1 to 4, by pressing the level selector buttons + (arrow
up) and (arrow down) until the LED next to the desired temperature level lights up.
Temperature level no. 1 = 60°C should normally be used, as it minimizes limestone precipita-
tion on the heating element and thus prolongs its life.
Temperature level no. 2 = 65°C should be selected only if level no. 1 does not produce
enough domestic hot water. The higher temperature will cause an increase in lime precipita-
tion on the heating element.
Temperature level no. 3 = 70°C and no. 4 = 75°C may be used only if scalding protection is
installed on the hot water outlet of the water heater. Otherwise there is a danger of scalding!
Lime precipitation will also be substantially increased.
• Vacation
“Standby” mode in which the Smart Control turns down the temperature of the water
heater so that it is kept frost free at 6°C. You cannot select any temperature levels in this
operational function.
Legionella protection
The Smart Control always operates a Smart Legionella protection function which continuously
monitors the water heater’s condition. If an operating condition occurs where Legionella could
exist, the temperature of the water heater is raised automatically to 65°C. This temperature is
held until all possible Legionella bacteria are destroyed.
Child lock
The Smart Control can be put in a condition where its features are locked to prevent changes to
selection options. The child lock is activated by simultaneously holding down the function button
and the level selector button – (arrow down) until the LED alternately lights up ECO + Manual
and level 3 + 4. The child lock is removed in the same manner it is enabled.

14
Error indicators
The Smart Control can detect and display the errors listed below. In case of an error, all opera-
tion of the water heater is automatically stopped!
• RESET
When the reason for the error is removed, the Smart Control must be RESET before it goes
back to operating mode. This is done by simultaneously holding down the level selector but-
ton + (arrow up) and – (arrow down).
• Lack of water in the water heater
If there is not enough water in the water heater when the heater is switched on, the Smart
Control shows this by alternately blinking the LEDs levels 1 + 2 and levels 3 + 4. The LED of
the selected function will be turned off.
• Abnormally long warm-up time
If an abnormally long warm-up time occurs, the Smart Control will show this by alternately
blinking the LED levels 1 + 3 and level 2. The LED of the selected function will be turned off.
This is typically due to the fact that the excess temperature thermostat has activated or a
heater element is defective.
• Other errors
If there are other errors – such as a defective temperature sensor, a water temperature above
90°C, or an error in the control system – the Smart Control will show this by alternately
blinking the LED for functions ECO + Vacation and manual, and the LEDs for level 1 to 4 will
all be off.
Note
Pipes and faucets near the water heater can reach temperatures above 60˚C.
The water heater is tted with an Thermal Cut Out thermostat that interrupts the electric con-
nection in case of excess temperature in the water heater. The Thermal Cut Out thermostat may
be reconnected only by an authorized installer.
Disposal
The product must be disposed of in the most environmentally sound manner. Individuals must
follow the municipality’s waste regulations for disposal from private households.

15
Maintenance
Exterior cleaning
The water heater may be wiped down only with a damp cloth. Window and glass cleaning
products can be used, but never scouring powder or varnish dissolving chemicals. Always
read the instructions for the cleaning product.
Relief Valve
The pressure relief valve should be inspected at least twice per year. The HVAC Installer can
show how. When testing it, water must ow out.
Descaling instructions
Descaling may be performed only by an authorized installer.
When the old gasket cannot be reused, it must be replaced.
• Disconnect the electrical connection from the main circuit breaker and shut off the water
inow at the turnoff valve.
• Drain the tank.
• Remove the bottom cover in order to get to the heating element. It is a ceramic heating ele-
ment placed in an immersion tube on the bottom ange (ange pipe).
• Disconnect the wires on the heating element and pull the capillary tubes gently out of the
small immersion tube.
• Disconnect the ange. It is possible that the gasket must be scraped off the tank with a thin-
blade knife. The ange pipe may be hard to pull through the opening due to lime deposits
etc., so it should be gently eased out as rough treatment of the enamelled parts may cause
damage later resulting in corrosion.
• Remove loose lime. Lime adhering to the heating element tube may be loosened by light
taps with e.g. a wooden rod.
• Flush the lime residues from the tank.
• Put the ange in place with a new gasket and spacer ring on the outer side of the bolts
(Figure 8). Tighten the bolts with a torque of 15 to 17 Nm.
• Fill with water and check for leaks by pressure testing with a water pressure of 10 bar.
• Re-attach the capillary tubes and wires. Place the sensor for the Smart Control completely
inside the immersion tube
Important! Make sure the capillary tubes cannot touch live electrical parts.
Gasket
Figure 8
Spacer ring
exterior

16
Figure 9
Figure 10
Inspection/replacement of the anode
Must be performed only by a certied HVAC installer. The tank comes with a controllable
magnesium anode. It is mounted in the bottom ange and is checked by disconnecting the
tank connection and inserting a multimeter (see Figure 9).
If the measured anode current is greater than 0.3 mA, the mass of the anode is large enough
to protect the tank. On the other hand, if the anode current is below 0.3 mA, the anode
should be replaced. That is done by emptying the tank and disassembling the ange pipe
(Figure 10).
Plate screw (2) is used for
installation of the ground wire.
Wire (3) must be installed
between points 4 and 5

17
Troubleshooting
The table below can help identify and remedy problems. If the problem cannot be remedied
using this table, contact an authorized HVAC/electrical installer.
Error Cause Action
No water ow Water supply disconnected
on cold or hot water stream.
Open ball valve - it may be
closed.
Check if the ball valve on the
safety system is open.
Reduceret varmt vand Water capacity of the tank is
exhausted.
Wait half an hour and try to
drain water again.
No hot water Thermostat set too low Change to higher setting.
No power to heating
element.
Check out panel board and
fuses.
Thermal Cut Out thermostat
is disconnected.
Reset*
Heating element burned out. Replace*
No power to the water
heater
Disconnected panel board. Turn on the panel board.
Fuse has blown. Replace fuse.
Thermal Cut Out thermostat
is disconnected.
Reset*
The water is too hot Thermostat set too high. Change to lower setting.
Thermostat defective. Replace control box*
The water is too cold Thermostat set too low. Change to higher setting.
*to be performed by authorized installer.
The Smart Control also has a built-in error detector that can detect and display several
different operating problems.
Review the Smart Control section of the user Manual additional detail.

18
Warranty provisions
Dear Customer,
METRO THERM produces and delivers thoroughly controlled quality products requiring authorization to install and service. Respon-
sibility for sizing, delivery, setup and commissioning therefore rests with the installer, and we refer to all authorised HVAC and electri-
cal installers in the country regarding installation, use, and potential warranty claim handling.
Should material or manufacturing defects arise, a number of provisions for warranty and repair apply, as indicated below:
The warranty applies under these conditions:
- The product is covered by warranty within 24 months from documented installation or purchase date according to Danish law.
- For tanks: METRO THERM provides an additional 3-year warranty against inside corrosion of the inner tank. In case of inside cor-
rosion, METRO THERM will perform repair of the tank free of charge at its own factory.
- For heat pumps: METRO THERM provides an additional 3-year warranty against internally generated function failures. In such
cases, METRO THERM will perform repairs free of charge.
- The product must be placed so that it can be serviced without obstacles. If the product is positioned such that accessibility is dif-
cult, METRO THERM disavows any obligation in relation to additional costs that may arise. We refer to DS 439 §5.1 and §5.2.
- The product shall be installed in accordance with BR §8.4.2.3 part 1.
- Where the repair is performed on site, the factory will deliver new replacement parts according to an agreed repair.
The above provisions shall apply ONLY if the following conditions are met:
- The installer has contacted METRO THERM before starting repair or replacement, and an agreement has been reached as to the
extent of the repair service.
- The installer has made available the manufacturing serial number by contacting METRO THERM.
- The installer sends a copy of the purchase or installation invoice as well as the defective product part to METRO THERM after
replacement/repair.
The warranty is NOT valid in the following cases:
- For damages for things other than those mentioned above or for personal injury caused by defects in the product.
- If the product has been connected to a temperature, voltage or pressure other than that indicated on the rating plate.
- If damage is due to frost, lightning, or dry excess temperature damage, or damage due to lime deposits or excess pressure.
- If repairs or other interventions have been carried out over and above normal and prescribed installation.
- Lime deposits in heat exchanger and high-wattage tanks, since lime is often caused by incorrect settings or use of the product.
- Damage caused by leaking water and hidden water installations.
- Damage caused during transport. Such damage must be reported to the transport company.
- Increased or additional costs in connection with repair or replacement made during weekends, public holidays or outside of
normal working hours are not covered. Driving expenses are not covered. Using a local installer is therefore recommended.
Applicable warranty provisions are available at www.metrotherm.dk.
Manufacturing serial number:
Setup performed and instruction given by the installer: (Name)
Signature: Date:

19
Declaration of conformity
The declaration of conformity is available on our website: www.METROTHERM.dk

METRO THERM A/S
RUNDINSVEJ 55
3200 HELSINGE
[email protected]
WWW.METROTHERM.DK
78:013-1603
Get a 1-year additional warranty on your METRO
product
We offer a one-year additional warranty on your METRO product when you register the product and indicate the place and time
of installation and the name of the installer company.
1. Click on http://fqr.dk or scan the QR-code
2. Enter product and installation information
3. Once we have processed your information, you will receive an
email conrming your additional warranty within a few days.