Nibe ELK 213 User guide

Installer manual ELK 213
LEK
Immersion heater
IHB GB 1714-6
031403

Table of Contents
41 Important information
4Safety information
52 General
5Compatible products
5Contents
5Assembly
63 Component positions
7Front panel
84 Pipe connections
8General
9System diagram
10Installation alternative
135 Electrical connection
13Electrical connection versions F1345
13External control
15Power supply
15Output
15Time relay
16Sensors
16Connection of the circulation pump (GP10)
176 Activating ELK 213
17Start guide
17Menu system
187 Disturbances in comfort
18Troubleshooting
198 Technical data
19Dimensions
20Technical specifications
21Energy labelling
22Electrical circuit diagram
23Item register
27Contact information
3Table of Contents |Immersion heater

Safety information
This manual describes installation and service procedures
for implementation by specialists.
This appliance can be used by children
aged from 8 years and above and per-
sons with reduced physical, sensory or
mental capabilities or lack of experience
and knowledge if they have been given
supervision or instruction concerning use
of the appliance in a safe way and under-
stand the hazards involved. Children shall
not play with the appliance. Cleaning
and user maintenance shall not be made
by children without supervision.
Rights to make any design or technical
modifications are reserved.
©NIBE 2017.
Symbols
NOTE
This symbol indicates danger to person or ma-
chine .
Caution
This symbol indicates important information
about what you should observe when maintain-
ing your installation.
TIP
This symbol indicates tips on how to facilitate
using the product.
Marking
The CE mark is obligatory for most products sold
in the EU, regardless of where they are made.
CE
Classification of enclosure of electro-technical
equipment.
IP21
Serial number
The serial number can be found at the bottom right of
ELK 213.
Caution
You need the product's (14 digit) serial number
for servicing and support.
Recovery
Leave the disposal of the packaging to the in-
staller who installed the product or to special
waste stations.
Do not dispose of used products with normal
household waste. It must be disposed of at a
special waste station or dealer who provides this type of
service.
Improper disposal of the product by the user results in
administrative penalties in accordance with current legis-
lation.
Country specific information
Installer manual
This installer manual must be left with the customer.
Immersion heaterChapter 1 | Important information4
1 Important information

ELK 213 is an electric heater intended for heating build-
ings and indirect heating of hot water. ELK 213 can also
be mounted together with a boiler, accumulator tank
or heat pump. When installing together with a heat
pump, for example, the electric heater is engaged auto-
matically as supplementary heating when the heating
demand is greater than the heat pump’s capacity.
ELK 213 contains overheat protection and contactors
for external control of the four power groups, 7, 9, 11
and 13 kW. Thermostat for the immersion heater and
isolator switch operated by knob on the control panel.
The stainless steel electric coils and electric boiler tube
in ELK 213are made of stainless steel (SIS 2333), which
gives a very good service life.
ELK 213 is equipped with a time relay. Time delay is re-
commended by the Swedish Power Association when
connected power exceeds 6 kW.
Compatible products
Connection is different depending on which product
ELK 213 is to be used with.
These products can be connected directly to ELK 213:
■F1345
■F1355
■SMO 20
■SMO 40
These products require the accessory AXC 40:
■F1145
■F1155
Contents
Immersion heater1 x
Assembly
The electric heater must be installed upright (see image
below).
Free space of 200 mm in front and 500 mm above the
cassette is required for service. If this is not possible, de-
tachable connections must be used.
200
500
5Chapter 2 | GeneralImmersion heater
2 General

123456789NI
N1
N2
L1
L2
L3
QA3
QA2QA1
X8
KF1
X1
SF1
FA1
BT35
FD1
XL1
XL2
EB1
PF3
XL10
*
Component list
Immersion heaterEB1
Thermostat 3-poleBT35
Miniature circuit-breakerFA1
Temperature limiterFD1
Time relayKF1
Serial number platePF3
Contactor (-K10)QA1
Contactor (-K22)QA2
Contactor (-K21)QA3
SwitchSF1
Terminal blockX1
Terminal blockX8
Connection supply line, R50XL1
Connection return line, R50XL2
Drain connection R20XL10
* Counter flanges, R50. Accessory needed. See section "Accumulator tank (SP 300)" on page 10 for more information.
Immersion heaterChapter 3 | Component positions6
3 Component positions

Front panel
SF1
FA1
BT35
FD1
NOTE
The switch (SF1) must not be put in "
D
a
y
15
12
24
21
618
R
3
9
15
ON OF F
" mode
before the boiler water has been filled. The
overheat protection, thermostat and the immer-
sion heater could be damaged.
Functions on the front panel
Switch
with 3 positions 0 -
D
a
y
15
12
24
21
618
R
3
9
15
ON OF F
-
D
a
y
15
12
24
21
618
R
3
9
15
ON OF F
:
SF1
Electric heater off (immersion heater and any
connected devices not in operation).
0
Any circulation pump in operation.
D
a
y
15
12
24
21
618
R
3
9
15
ON OF F
Immersion heater operating (immersion
heater and any connected devices in opera-
tion).
D
a
y
15
12
24
21
618
R
3
9
15
ON OF F
Immersion heater thermostat
This thermostat controls the immersion heaters.
BT35
Miniature circuit-breaker
Reset a tripped miniature circuit breaker by push-
ing the button.
FA1
Overheat protection
Reset overheat protection by pushing the button.
The fault must be rectified before doing this, see
section “Troubleshooting" on page 18.
FD1
7Chapter 3 | Component positionsImmersion heater

General
Pipe installation must be carried out in accordance with
current norms and directives.
ELK 213 can be installed as a freestanding electric boiler
or as an electric heater with another heat source.
Tapping valve
If a drain valve is necessary, it can be installed in the
water heater's drain connection XL10). This connection
can also be used as a circulation pump connection. The
connection is plugged upon delivery.
Circulation pump
A circulation pump must be used to ensure the flow over
the immersion heater. If the heating system valves can
close the circulation completely, a bypass valve must be
installed so that the flow through the electric heater
does not stop. For a closed boiler installation, a pressure
expansion valve must be installed.
Safety valve
In closed boiler installations, the safety valves must be
installed in connection with the highest part of the
electric heater, but not directly on the heater. The con-
nection line must rise continuously.
The safety valve must be "exercised" regularly, at least
four times a year.
Pressure drop diagram
Flow
(kPa)
00 0,1 0,2 0,4 (l/s)
0,5
1
1,5
2
(kPa)
0,3 0,5 0,6
(l/s)
NOTE
The pipe work must be flushed before the elec-
tric heater is connected, so that any contamin-
ants do not damage the component parts.
Immersion heaterChapter 4 | Pipe connections8
4 Pipe connections

System diagram
TIP
See www.nibe.eu for complete docking prin-
ciples.
NOTE
This is the outline diagram. Actual installations
must be planned according to applicable
standards.
Explanation
Electric heater ELK 213EB1
Pressure gaugeBP5
Expansion vesselCM4
Safety valveFL2
Circulation pumpGP10
Shut off valvesQM40 - QM41
Shunt valveQN11
Non-return valveRM5
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
ELK 213 as electric heater
-RM5
Värmepump/
Inomhusmodul
-GP10 -QM41
-BT25
-QM40
-FL2
-CM4
-EB1
P
-BP5
Heat pump/
Indoor module
ELK 213 as freestanding boiler
-GP10 -QM41
-QM40
-FL2
-CM4
-EB1
P
-BP5
9Chapter 4 | Pipe connectionsImmersion heater

Installation alternative
Accumulator tank (SP 300)
For installing ELK 213 to SP 300 accessory "Thread flange
kit" is required (Part no. 022 077).
In the event of large hot water demands, ELK 213, in-
stalled on double-jacket accumulator tank type, can be
used to heat the domestic hot water. This is also a good
solution for aggressive or hard water.
Recommended thermostat setting: 75 °C
Explanation
Expansion vesselCM4
SP 300CP1
ELK 213EB1
Safety valve, heating medium sideFL2
Mixer valve, external heat sourceFQ2
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
-CP1
-EB1
-FL2
-FQ2
-CM4
Immersion heaterChapter 4 | Pipe connections10

Boiler with internal water heater
With the immersion heater installed on an existing boiler,
the existing control equipment is used.
Install the electric heater so that external heating does
not cause overheating, for example, in front of the fire-
box door (to prevent flames blowing out) or next to the
flue pipe (to prevent damaging heat radiation). A suit-
able location is normally at the side of the boiler, directly
on the double jacketed heater’s flanges or similar loca-
tion.
When the electric heater is installed on the existing wood
boiler and is solely responsible for the heating demand,
the flue should be sealed.
Explanation
Pressure gaugeBP5
Expansion vesselCM4
ELK 213EB1
Oil/gas boilerEM1
Safety valve, hot waterFL1
Safety valve, heating medium sideFL2
Mixing valveFQ1
Circulation pump, boilerGP4
Circulation pump, heating medium extern-
al
GP10
Tapping valveQM4
Shut-off valveQM40 - QM44
Shunt valveQN11
Non-return valveRM1
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
-EM1 -QM43 -GP4
-GP10
-QM44
-QM40 -QM41 -QM42-QM4 -RM1
-CM4
-FL1
-EB1
-FQ1
-FL2
P
-BP5
-QN11
11Chapter 4 | Pipe connectionsImmersion heater

Boiler with external water heater
When supplementing with the hot water heater, it is
best to equip the installation with a shut-off valve QM42,
which, during the summer time, when the electric hot
water heater is solely responsible for the hot water sup-
ply, by-passes the existing hot water coil. This prevents
condensation and increases the service life of the boiler.
Explanation
Pressure gaugeBP5
Expansion vesselCM4
ELK 213EB1
Water heaterEB2
Oil/gas boilerEM1
Safety valve, hot waterFL1
Safety valve, heating medium sideFL2
Mixing valveFQ1
Circulation pump, boilerGP4
Circulation pump, heating medium extern-
al
GP10
Tapping valveQM4
Shut-off valveQM40 - QM45
Shunt valveQN11
Non-return valveRM1
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
-EM1
-FL1
-QM44 -GP4
-GP10
-QM45
-QM40 -QM41 -QM43
-QM42
-QM4 -RM1
-EB1
-EB2
-FQ1
-CM4
-FL2
P
-BP5
-QN11
Immersion heaterChapter 4 | Pipe connections12

NOTE
All electrical connections must be carried out
by an authorised electrician.
Electrical installation and wiring must be carried
out in accordance with the stipulations in force.
The climate unit must not be powered when
installing ELK 213.
NOTE
To prevent interference in the event of any spli-
cing, communication and/or sensor cables to
external connections must not be laid closer
than 20 cm from high voltage cables.
ELK 213 must be installed via a circuit breaker with a
minimum breaking gap of 3 mm.
All electrical equipment is connected at the factory.
Do not connect the electric heater without the permis-
sion of the electricity supplier.
The electrical circuit diagram is at the end of this Installer
handbook.
NOTE
Reset the overheat protection, it may have
tripped during transport.
NOTE
The switch (SF1) must not be put in "
D
a
y
15
12
24
21
618
R
3
9
15
ON OF F
" mode
before the boiler water has been filled. The
overheat protection, thermostat and the immer-
sion heater could be damaged.
Electrical connection versions
F1345
F1345 has different electrical connection versions de-
pending on when the heat pump was manufactured. To
check which electrical connection applies to your F1345,
check the designation "2.0" visible above the right hand
side of the terminal block as illustrated.
LEK
External control
If ELK 213 is to be controlled externally, the straps
between X8:1-X8:6, X8:2-X8:7 and X1:N1-X1:N2 must
be removed. In addition, the strap between X8:3-X8:5
must be moved so that it runs between X8:3-X8:9.
F1345 without 2.0
Terminal blocks X1 and X8 in ELK 213 connect to the
terminal blocks X2-X4 in the heat pump as illustrated.
X2 X3 X4
F1345
ELK 213
7 8 9 N PE 4321 5 6
X1
N1 N2 L1 L2 L3
X2
1 2 3 4 5 6 1 2 3 1 2 34 5 67 8 9
X2 X3 X4
ELK213
Heat pump
X8X1
X4X3X2
13Chapter 5 | Electrical connectionImmersion heater
5 Electrical connection

F1345 with 2.0/F1355
Terminal blocks X1 and X8 in ELK 213 connect to the
terminal blocks X5, X7 and X8 on the input board AA101
in the heat pump as illustrated.
X5 X7 X8
L1
-X3 -X4
1 2 3
-AA101 -AA101
NL2 L3 1 2 3456789
-X5
1 2 3456789
-X6
-X7 -X8 -X9
-FC1
-AA101 -AA101
-AA101 -AA101 -AA101
1 2 341 2 31 2 31 2 345
-X10
A B A B
-AA3-X7
K1
-AA101
K2 K3
C C NO NC
K4
CNO NC
QN10 GP16
LNL L L N N N LNLNPE
PE
6789 10 11 12 13 14 15 16 17 18 19 20 21 22
12V
A B 13 14
-BE1
-GP16
-BE2
-BE3
AUX 4
AUX 5
1 2 3456789 10 11 12 13 14 15
-AA3
-X6
0-10V
-EP14 -EP15
-BF1
16 17 18 2
-AA3
-X22
-AA3
-AA3
-X20 -X21
131 2 3
-X23
-BT1
-BT50
-BT25
-BT6
AUX 1
AUX 2
AUX 3
-BT7
-BT71
2.0
F1345 2.0
ELK 213
7 8 9 N PE 432
15 6
X1
N1 N2 L1 L2 L3
X2
1 2 3 1 2 3 44 5 6
X5
X7 X8
1 2 3
ELK213
Heat pump
X1 X8
X8X7X5
F1145 and F1155
To connect ELK 213 to F1145, the AXC 40 accessory is
required.
Terminal blocks X1 and X8 in ELK 213 connect to terminal
block X9 in AXC 40 as illustrated.
AXC 40
ELK 213
4321 7 865
X9
7 8 9 N PE 4321 5 6
X1
N1 N2 L1 L2 L3
X2
ELK213
Accessory card
X8X1
X9
SMO 20 and SMO 40
ELK 213
7 8 9 N432
15 6
X8
N1 N2 L1 L2 L3
X1
654321
2 3 41 0 PE
X1 AA7:X2
ELK213
Control module
X1 X8
AA7:X2X1
Immersion heaterChapter 5 | Electrical connection14

Power supply
The power cable must be selected for the relevant power
and connected to terminal block X1.
Upon delivery the electric heater has three unopened
cable grommets. These are for supply, external control,
circulation pump and load monitor.
Output
The immersion heater can be set up to a maximum of
13 kW. The delivery setting is 9 kW in two steps.
The immersion heater power output is divided into steps,
7, 9, 11 and 13 kW. Connection to another power output
is made at the top of the water heater, directly on the
immersion heater’s connections and on terminal block
(X8) in the electrical connection.
The power output can be controlled in three steps in all
powers and in two steps for power outputs 7 and 9 kW.
Powers 11 and 13 kW must not be controlled in two
steps. Change-over occurs on terminal block (X8) using
the wiring enclosed.
9 kW in two steps (delivery setting)
7 8 9 N4321 5 6
X8
X8
7/9 kW in three steps
7 8 9 N4321 5 6
X8
X8
11/13 kW in three steps
7 8 9 N4321 5 6
X8
X8
Controlling the immersion heater
NOTE
It is recommended that ELK 213 is linearly con-
trolled. If binary control is still required, ensure
that step one has lowest output, step two next
highest output and step three the highest out-
put.
Power step (kW)Set output (kW)
1, 2, 47
2, 3, 49
1, 4, 611
3, 4, 613
Time relay
ELK 213 is equipped with a time relay (KF1), which blocks
part of the electric heater via contactor (QA2) so that a
maximum of 6 kW is connected the first two hours after
the immersion heater has been disconnected.
LEK
LEK
15Chapter 5 | Electrical connectionImmersion heater

Sensors
LEK
Thermostat bulb
Overheat protection bulb
1. Install the thermostat bulb (long).
2. Install the overheat protection bulb (short).
Connection of the circulation
pump (GP10)
Connect the cable for any circulation pump fitted to
terminal block (X8), fused with miniature circuit breaker
(FA1) on 10 A and routed through separate strain-relief.
8
9
N
X8
GP10
L
N
PE
ELK 213 Externt
ELK213
X8
External
GP10
Immersion heaterChapter 5 | Electrical connection16

This section describes how to activate ELK 213 in install-
ations together with a heat pump.
The menu setting of ELK 213 can be performed via the
start guide or directly in the menu system.
Caution
Also see the Installer manual for the product
that ELK 213 will be connected to.
Start guide
The start guide appears upon first start-up after heat
pump installation, but is also found in menu 5.7.
Menu system
F1345, F1355, SMO 20 and SMO 40
Menu 4.9.3 - degree minute setting
Select when the addition is to start.
Menu 5.1.12 - addition
Setting:
■Max. number of permitted additional steps
■If binary stepping is to be used.
Caution
Linear stepping of ELK 213 is recommended.
F1145 and F1155
Information about menu settings for the products above
can be found in the manual for AXC 40.
See the ”Compatible products” section on page 5 to
see which accessory is required for your product.
17Chapter 6 | Activating ELK 213Immersion heater
6 Activating ELK 213

Troubleshooting
TIP
In the event of malfunction or operating mal-
function, first check the points below.
NOTE
Work behind covers secured by screws may only
be carried out by, or under the supervision of,
a qualified installation engineer.
NOTE
In the event of action to rectify malfunctions
that require work within screwed hatches, the
incoming supply electricity must isolated at the
safety switch.
Low room temperature
■Circuit or main MCB tripped.
■Possible earth circuit-breaker tripped.
■Switch (SF1) set in position "0" or "
D
a
y
15
12
24
21
618
R
3
9
15
ON OF F
".
■Miniature circuit breaker (FA1) has deployed.
■The overheat protection (FD1) has tripped. If the
overheat protection has tripped, the function of the
system’s circulation pumps and valves must be
checked. To reset, press the button on the overheat
protection when the temperature has fallen below
80°C.
■Circulation pump has stopped.
■Air in boiler or system.
■The pressure is to low in the expansion vessel.
■The load monitor or some external control unit may
have blocked the power output.
Poor circulation
■Circulation pump, if fitted is stationary.
Immersion heaterChapter 7 | Disturbances in comfort18
7 Disturbances in comfort

Dimensions
All dimensions in mm.
280
400 605
200
19Chapter 8 | Technical dataImmersion heater
8 Technical data

Technical specifications
IP 21
Type
Electrical data
400V 3N ~ 50HzRated voltage
13 (output on delivery 9 kW)kWMax output, electric heater
10AMax. permitted total current for connected apparatus
20ARecommended fuse rating immersion heater
IP21Enclosure class
Heating medium circuit
0.3/3MPa/barMax permitted pressure in the boiler
- / 1800l/hMin. flow/max. flow
Dimensions and weight
200mmWidth
280mmDepth
605mmHeight
18kgWeight
7litreVolume
Miscellaneous
069 500Part No.
Immersion heaterChapter 8 | Technical data20