Nibe ELK 15 User manual

INSTALLATION AND MAINTENANCE INSTRUCTIONSMOS GB 1238-4
ELK 15
031179 ELK 15
LEK

For Home Owners
General
System description
Principle of operation 3
Components 3
System diagram 3
Operation and maintenance
General 4
Operation 4
Safety valve 4
Venting 4
Draining 4
Actions in the event of freeze risk 4
For the Installer
General information for the installer
Function 5
Pipe installation 5
Electrical installation 5
Draining 5
Installation alternative
Components 6
FIGHTER 1320/1330 and F1330 7
F1345 10
Miscellaneous
Electrical circuit diagram
To F1145 12
ELK 15 13
Technical specifications
Dimensions 14
Component positions 15
List of components 15
Technical specifications 16
Dealing with malfunctions
Low room temperature 17
1ELK 15
Table of Contents

General
In order to get the greatest benefit from the electric heater ELK 15 you should read the "For Home Owners" section
in this Installation and Maintenance Instruction. ELK 15 is an electric heater that is intended for installation together
with a heat pump for heating detached houses and small apartment buildings.
ELK 15 is a Swedish-made quality product offering long life and reliable operation.
The serial number* (95) must always be stated in all correspondence with NIBE.
069___________
Installation date
Plumber
Electrician
Insert any notes here.
Datum__________________________ Sign___________________________
*The serial number can be found at the bottom corner on the inside of the electric heater.
This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or
lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a
person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
Rights to make any design or technical modifications are reserved.
©NIBE 2012.
ELK 152
For Home Owners
General

System description
Principle of operation
NIBE ELK 15 is an electric heater that is primarily intended
for installation together with a heat pump for heating
buildings.
ELK 15 contains overheat protection and contactors for ex-
ternal control of the two power groups 5.0 and 10.0 kW.
Time delay recommended in compliance with the Association
of Swedish Electricity Utilities norms (always apply national
regulations) when connected power output exceeds 6 kW.
The electric module is principally an immersion heater in-
stalled in a water container, or an electric boiler without do-
mestic hot water heater.
The stainless electric coils and electric boiler tube are made
from acid proof steel (SIS 2333), which gives a very long
service life.
Economical
A small water volume and a well insulated cassette mean
small heat losses.
Components
Shut-off valveAV
Non-return valveBV
Circulation pumpCP
Expansion vesselEXP
Flow line sensorFG
Return line sensorRG
Control valveRV
Safety valveSÄV
NOTE! This is an outline sketch. Actual installations must be
planned according to applicable standards.
See the relevant outline diagram for connection to the differ-
ent heat pumps.
System diagram
Additional heat from ELK 15 is controlled by the heat pump.
ELK 15 BV
RV
AV
AV
SÄV
EXP
CP FG
RG
LEK
LEK
LEK
ELK 15
3ELK 15
For Home Owners
System description

Operation and maintenance
General
After installing, check with the installer that the installation
is in good condition. Allow the installer to show controls and
functions so that you are fully aware about how to use and
maintain the installation.
Check that the water pressure is correct; air may remain in
the system after installing. This is why bleeding and pressure
checks should be carried out again.
Operation
Electrical output is controlled externally by the heat pump.
This means that the electrical output is connected and dis-
connected by the additional heater.
Safety valve
A safety valve that is installed in the heating system, in con-
nection with the closed expansion system, must be exercised
regularly, approximately 4 times per year to maintain the
safety function or according to national regulations.
Venting
Regularly check that there is water in the system. Air can re-
main in the system after installation and the radiators and
boiler should be bled again. After bleeding, the pressure
must be checked and water topped up if necessary.
Draining
If draining the system of water, the electric module must be
switched off to prevent damaging the immersion heater’s
electric coils.
Actions in the event of freeze risk
In the event of extreme cold, no part of the heating system
must be switched off, there is a risk of frost damage.
If a part of the heating system is thought to be frozen, con-
tact the installer.
If the heating system must be switched off for a long period
of time, drain the water and ensure that the immersion
heater cannot be started.
ELK 154
For Home Owners
Operation and maintenance

General information for the installer
Function
Area of use for NIBE immersion heater is in combination with
NIBE ground source heat pumps and air/water heat pumps.
When the heating demand is greater then heat pump's ca-
pacity, the immersion heater connects automatically as addi-
tional heat. The electrical equipment is adapted to the heat
pump's function.
ELK 15 contains overheating protection and contactors to
externally regulate the two power steps, 5 and 10 kW. For
optimum function the outputs should be binary controlled,
i.e. 5, 10 and 15 kW.
If there is no operating voltage from the heat pump, the
largest power stage can be force controlled via thermostat.
See the wiring diagram.
Pipe installation
The pipe installation must be carried out in accordance with
applicable standards.
LEK
The immersion heater must be installed standing (see image
above). An area of 500 mm is required in front of the immer-
sion heater for service work. If this is not possible, detachable
connections should be used.
Circulation pump must be used to ensure the flow over the
immersion heater. If the heating system’s valves can close
the circulation completely, a by-pass must be installed to
prevent the flow through the immersion heater from being
stopped. When the unit is off, an approved safety valve must
be installed as well as a pressure expansion vessel. The safety
valves must be checked about four times a year. This is done
by quickly opening and closing the valves. The pressure is
reset by filling with water.
Electrical installation
ELK 15 must be installed via an isolator switch with a minim-
um breaking gap of 3 mm.
NOTE
Electrical installation and service must be carried out
under the supervision of a qualified electrician. Electric-
al installation and wiring must be carried out in accord-
ance with the stipulations in force.
Power supply
The electric heater must be supplied with 4x6mm
2cable,
3 x 400 V AC 50Hz, fused3x25A.
The cable for the operational supply must be 5 x 1,5 mm2.
NOTE
Reset the temperature limiter, it may have tripped
during transport.
NOTE
In the event of any servicing all electrical supplies must
be checked and disconnected. The immersion heater
can be supplied with voltage from connected heat
pump.
Draining
The system is most easily drained by installing a drain valve
to the lowest point of the piping. Draining via such a valve
leaves a small amount of water in the immersion heater,
which is therefore drained via drain connection (71). If the
unit is normally drained via the immersion heater's drain
connection, install a suitable drain valve.
5ELK 15
For the Installer
General information for the installer

Installation alternative
Components
Shut-off valveAV
Rock collector/Soil collectorBK/JK
Non-return valveBV
Circulation pumpCP
Immersion heaterELK
Electric water heaterEL VVB
Expansion vesselEXP
Flow sensorFG
Auxiliary relayHR
BrineKB
Charge pumpLP
Level vesselNK
Return temperature sensorRG
Control valveRV
Particle filterSF
Safety valveSÄV
Outdoor temperature sensorUG
Circulation pumpVBP
Heat pumpVP
Accumulator with hot water heaterVVB/ACK
Hot water temperature sensorVVG
Three way valve, VST 11/VST 20VXV
Accessory cardAA5
Pressure gaugeBP6
Outdoor temperature sensorBT1
Temperature sensor, hot water chargingBT6
Temperature sensor, heating medium flow, ex-
ternal
BT25
Temperature sensor, heating medium return,
external
BT71
Expansion vesselCMX
Accumulator tankCP10
Immersion heaterEB1
Immersion heaterEB2
Heat pumpEB100
Collector, brine sideEP12
Cooling module AEP14
Cooling module BEP15
Safety valve, heating mediumFL2
Safety valve, brineFL3
Safety valveFL1X
Circulation pump, heating mediumGP10
Particle filterHQ1X
Auxiliary relay, immersion heaterKA1
filler valveQM11
Venting valveQM2X
Shut-off valveQM30-QM59
Reversing valve, hot water/heatingQN10
Non-return valveRMXX
Trim valveRN11
Connection boxXD1
Connection, filling brine
XL27-XL28
ELK 156
For the Installer
Installation alternative

FIGHTER 1320/1330 and F1330
B
A
AB III
50.0 C
Varmvattentemperatur
13.43
1.0
AB
VPB
EXP
SÄV
UG
VBP3
RV
AV HR BV
RG
FG
RV BV
VXV
HR
RV BV
SÄV
SF AV VVG
F1330
EXP
AV
AV
SF
P
KB-ut
KB-in
ELK 15
FIGHTER 1320/1330 / F1330 prioritises loading of hot water
with half the output (heat pump module B) via a reversing
valve. When the hot water heater/accumulator tank is fully
charged, the reversing valve switches to the heating circuit.
When there is a heat demand, module A starts first. For larger
heating demands, module B is also started. FIGHTER
1320/1330 / F1330 connects ELK 15 in steps when the energy
requirement exceeds the heat pump capacity.
If HWH/ACC is fitted with an immersion heater and a junction
box the "Extra hot water" function can be used. A by-pass
contactor is recommended.
Menu settings
1. Select “Electric” in menu 9.1.8 - "Additive".
2. Select ”Binary” in menu 6.2.1 - "Immersionheater type".
3. Select ”2” in menu 6.2.2 - "Immersionheatrelays".
4. Select "1" in menu 6.2.3 - "Steps at 2h delay", if a re-
striction of the electrical power for 5 kW within 2 hours
from start-up is required.
5. Select "Auto" operating mode in order for the electrical
addition to be permitted to start.
Check the max. output setting on knob (101), in FIGHTER
1320/1330 / F1330.
See the appropriate “Installation and Maintenance Instruc-
tions” for FIGHTER 1320/1330 / F1330 for more information.
7ELK 15
For the Installer
Installation alternative

Electrical connection FIGHTER 1320/1330
Without thermostat
12
13
14
15
9
8
10
11
J1,2
J1,1
7
6
L1
L2
L3
PE
8
J2,2
4
5
X6
X9
10
11
FIGHTER
1320/1330 ELK 15
With thermostat
10 kW immersion heater step active in emergency mode.
12
13
14
15
9
8
10
11
J1,2
J1,1
7
6
L1
L2
L3
PE
8
J2,2
4
5
T
X6
X9
10
11
35
FIGHTER
1320/1330 ELK 15
NOTE
The thermostat (35) must be adjusted so that the sys-
tem's highest permitted temperature is not exceeded.
The adjustment must not be so great that it limits the
power.
ELK 158
For the Installer
Installation alternative

Electrical connection F1330
Without thermostat, 2 active electrical steps
15 kW immersion heater step active.
16
17
18
19
13
12
14
15
J1,2
J1,1
7
6
L1
L2
L3
PE
8
J2,2
4
5
X6
X9
10
11
F1330 ELK 15
With thermostat, 2 active electrical steps
15 kW immersion heater step active.
10 kW immersion heater step active in emergency mode.
16
17
18
19
13
12
14
15
J1,2
J1,1
7
6
L1
L2
L3
PE
8
J2,2
4
5
T
X6
X9
10
11
35
F1330 ELK 15
NOTE
The thermostat (35) must be adjusted so that the
temperature above the system's highest permitted
temperature is not exceeded.
9ELK 15
For the Installer
Installation alternative

F1345
-BT6
-CP10
-EP12
-CM3
P
-BP6 -QM21 -FL3
-XL28-XL27
-QM33
-FL2
-CM1
-QM11 -QM20
-QM34
-EB100-BT25
-EB100-BT71
-FL12
-FL11
-FL13
-FL14
-QM54
-QM55
-QM56
-QM57
-QM50
-QM51
-QM52
-QM53
-RM11
-RM10
-BT1
-EB100
-EB100
-EP15
-EP14
-HQ15
-HQ14
-RM12
-RM13
-HQ13
-HQ12
-EB100
-CM5
-FL10
-QM42
-QM43
-EB1
-EB1
-EB2
-XD1
-RN11
-QN10
-EB100
-GP10
-KA1
-AA5
-RM42
Module EP14 prioritises hot water charging via a reversing
valve. When the hot water heater/accumulator tank is fully
charged, the reversing valve switches to the heating circuit.
The heat pump is controlled by an outdoor sensor combined
with the flow line sensor which must be placed on the main
pipe to the radiators. ELK 15 is connected automatically when
the energy requirement exceeds the heat pump capacity.
Menu settings
1. Set start diff additional heat and diff. between additional
steps in menu 4.9.3 - degree minute setting.
2. Set whether there should be binary control or not, max
step and fuse size in menu 5.1.12 - step controlled add.
heat.
See the “Installer manual” for F1345 for more information.
ELK 1510
For the Installer
Installation alternative

Electrical connection F1345
Without thermostat, 2 active electrical steps
15 kW immersion heater step active.
X9
F1345 ELK
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
X2
X3
J1,2
J1,1
7
6
L1
L2
L3
PE
8
J2,2
4
5
10
11
F1345 ELK 15
With thermostat, 2 active electrical steps
15 kW immersion heater step active.
10 kW immersion heater step active in emergency mode.
X9
F1345 ELK
10
11
35
1
2
3
4
5
6
1
2
3
1
2
3
4
5
6
7
8
9
X2
X3
X4
J1,2
J1,1
7
6
L1
L2
L3
PE
8
J2,2
4
5
T
F1345 ELK 15
NOTE
The thermostat (35) must be adjusted so that the
temperature above the system's highest permitted
temperature is not exceeded.
11ELK 15
For the Installer
Installation alternative

Electrical circuit diagram
To F1145
ELK 1512
Miscellaneous
Electrical circuit diagram

ELK 15
-X9 -X9
13ELK 15
Miscellaneous
Electrical circuit diagram

Technical specifications
Dimensions
530
300
90
140 60
560
30
15
240
135
65
200
Ø6 x4
ELK 1514
Miscellaneous
Technical specifications

Component positions
L1
2
J2
1
8
7
6
5
4J1
2
J1 L2
L3 PE
LEK
9
35
10
11
78
6
100
70
81
95
71
1
List of components
Immersion heater (-R1)1
Overheat protection (-B1)6
Terminal block (-X9)9
Contactor, 5,0 kW (-K1)10
Contactor, 10,0 kW (-K2)11
Emergency mode thermostat (-B2)35
Connection, flow line, G 4070
Connection, return line, G 4071
Cable grommet78
Venting81
Sign, serial number95
Installation hole4x(Ø6mm)100
15ELK 15
Miscellaneous
Technical specifications

Technical specifications
IP 44
560 mmHeight
240 mmWidth
135 mmDepth
11 kgWeight
4.5 litresVolume
3 x 400 V AC 50HzSupply voltage
15 kWOutput immersion heater
25 AFuse immersion heater
IP 44Enclosure class
0.7 MPa (7 bar)Max permitted pressure in the
boiler
SIS 2333 EN 1.4301Material immersion heater
SIS 2333 EN 1.4301Material tube
069 022Part No.
ELK 1516
Miscellaneous
Technical specifications

Dealing with malfunctions
In the event of a malfunction or disruption to normal operation, first check the points below:
Low room temperature
႑Circuit or main MCB tripped.
႑Possible earth circuit-breaker tripped.
႑The overheating protection has tripped. If the overheating
protection has tripped, the function of the system’s circu-
lation pumps and valves must be checked. Reset by
pressing in the button on the overheating protection,
when the temperature has dropped below 80 °C.
႑Circulation pump stopped.
႑Air in boiler or system.
႑The pressure is to low in the expansion vessel.
႑The load monitor or some external control unit may have
blocked the power output.
NOTE
Work behind panels secured by screws may only be
carried out by a qualified installation engineer.
17ELK 15
Miscellaneous
Dealing with malfunctions

ELK 1518