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Nibe F1345 Series User manual

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Service manual
LEK
F1345
Ground source heat pump
SEM GB 1714-2
431514
Table of Contents
31 Important information
3Document information
3Safety information
62 The heat pump design
113 System description
11Principle of operation
16System diagram
184 Cooling circuit
18Outline diagram
18Compressor protection
19Expansion valve
205 Component description
20Compressor (GQ10)
20Other components
23Sensors
23Electronics
266 Troubleshooting
26Alarm list
36Troubleshooting guide
44Function check, relays/components
467 Component replacement
46Basic
54Main components
61Circuit board and electronics
64Sensors
658 Technical data
65Technical specifications
68
9 Dimensions and setting-out coordin-
ates
69Item register
F1345Chapter |2
Document information
This technical manual is a complement to the Installer
handbook for F1345, containing:
■Description of functions and component description.
■Information to facilitate fault-tracing.
■Instructions for replacing components.
■Wiring diagram.
■Supplementary technical information.
The document applies to heat pumps with part no.:
065 29724 kW
065 29830 kW
065 29940 kW
065 30060 kW
The heat pump software version can be found in the info
menu (menu 3.1).
Safety information
This manual describes installation and service procedures
for implementation by specialists.
SEMKO text
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. The product
is intended for use by experts or trained
users in shops, hotels, light industry,
farming and similar environments.
Children must be instructed/supervised
to ensure that they do not play with the
appliance.
Do not allow children to clean or main-
tain the appliance unsupervised.
This is an original manual. It may not be
translated without the approval of NIBE.
We reserve the right to make design
modifications without prior notice.
©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.
3Chapter 1 | Important informationF1345
1 Important information
Marking
F1345 is CE marked and fulfils IP21.
The CE marking means that NIBE ensures that the
product meets all regulations that are placed on it based
on relevant EU directives. The CE mark is obligatory for
most products sold in the EU, regardless where they are
made.
IP21 means that objects with a diameter larger than or
equivalent to 12.5 mm cannot penetrate and cause
damage and that the product is protected against vertic-
ally falling drops of water.
Safety precautions
Caution
Install the system in full accordance with this installation
manual.
Incorrect installation can cause bursts, personal injury, water leaks,
refrigerant leaks, electric shocks and fire.
Observe the measurement values before working on the
cooling system, especially when installing in small rooms, so
that the limit for the refrigerant's density is not exceeded.
Consult an expert to interpret the measurement values. If the refri-
gerant density exceeds the limit, lack of oxygen can occur in the
event of any leak, which can cause serious accidents.
Use original accessories and the stated components for the
installation.
If parts other than those stated by us are used, water leaks, electric
shocks, fire and personal injury may occur as the unit may not work
properly.
Ventilate the working area well – refrigerant leakage may occur
during service work.
If the refrigerant comes into contact with naked flames, poisonous
gas is created.
Install the unit in a location with good support.
Unsuitable installation locations can cause the unit to fall and cause
material damage and personal injury. Installation without sufficient
support can also cause vibrations and noise.
Ensure that the unit is stable when installed, so that it can
withstand earthquakes and strong winds.
Unsuitable installation locations can cause the unit to fall and cause
material damage and personal injury.
The electrical installation must be carried out by a qualified
electrician and the system must be connected as a separate
circuit.
Power supply with insufficient capacity and incorrect function can
cause electric shocks and fire.
Use the stated cables for the electrical connection, tighten the
cables securely in the terminal blocks and relieve the wiring
correctly to prevent overloading the terminal blocks.
Loose connections or cable mountings can cause abnormal heat
production or fire.
Check, after completed installation or service, that no refriger-
ant leaks from the system in gas form.
If refrigerant gas leaks into the house and comes into contact with
an aerotemp, an oven or other hot surface, poisonous gases are
produced.
Use types of pipe and tools stated for this type of refrigerant.
Using existing parts for other refrigerants can cause breakdowns
and serious accidents due to process circuit bursts.
Switch off the compressor before opening/breaching the refri-
gerant circuit.
If the refrigerant circuit is breached /opened whilst the compressor
is running, air can enter the process circuit. This can cause unusually
high pressure in the process circuit, which can cause bursts and
personal injury.
Switch off the power supply in the event of a service or inspec-
tion.
If the power supply is not shut off, there is a risk of electric shocks
and damage due to the rotating fan.
Do not run the unit with removed panels or protection.
Touching rotating equipment, hot surfaces or high voltage parts
can cause personal injury due to entrapment, burns or electric
shocks.
Cut the power before starting electrical work.
Failure to cut the power can cause electric shocks, damage and in-
correct function of the equipment.
F1345Chapter 1 | Important information4
Care
Carry out the electrical installation with care.
Do not connect the ground lead to the gas line, water line, lightning
conductor or telephone line's ground lead. Incorrect grounding
can cause unit faults such as electric shocks due to short-circuiting.
Use main switch with sufficient breaking capacity.
If the switch does not have sufficient breaking capacity, malfunc-
tions and fire can occur.
Always use a fuse with the correct rating in the locations where
fuses are to be used.
Connecting the unit with copper wire or other metal thread can
cause unit breakdown and fire.
Cables must be routed so that they are not damaged by metal
edges or trapped by panels.
Incorrect installation can cause electric shocks, heat generation
and fire.
Do not install the unit in close proximity to locations where
leakage of combustible gases can occur.
If leaking gases collect around the unit, fire may occur.
Do not install the unit where corrosive gas (for example nitrous
fumes) or combustible gas or steam (for example thinner and
petroleum gases) can build up or collect, or where volatile
combustible substances are handled.
Corrosive gas can cause corrosion to the heat exchanger, breaks
in plastic parts etc. and combustible gas or steam can cause fire.
Do not use the unit for specialist purposes such as for storing
food, cooling precision instruments, freeze-conservation of
animals, plants or art.
This can damage the items.
Do not install and use the system close to equipment that
generates electromagnetic fields or high frequency harmonics.
Equipment such as inverters, standby sets, medical high frequency
equipment and telecommunications equipment can affect the unit
and cause malfunctions and breakdowns. The unit can also affect
medical equipment and telecommunications equipment, so that
it functions incorrectly or not at all.
Take care when carrying the unit by hand.
If the unit weights more than 20 kg, it must be carried by two
people. Use gloves to minimize the risk of cuts.
Dispose of any packaging material correctly.
Any remaining packaging material can cause personal injury as it
may contain nails and wood.
Do not touch any buttons with wet hands.
This can cause electric shocks.
Do not touch any refrigerant pipes with your hands when the
system is in operation.
During operation the pipes become extremely hot or extremely
cold, depending on the method of operation. This can cause burn
injuries or frost injuries.
Do not shut off the power supply immediately after operation
has start.
Wait at least 5 minutes, otherwise there is a risk of water leakage
or breakdown.
Do not control the system with the main switch.
This can cause fire or water leakage. In addition, the fan can start
unexpectedly, which can cause personal injury.
Especially for units intended for R407C and R410A
- Do not use other refrigerants that those intended for the unit.
- Do not use charging bottles. These types of bottles change the
composition of the refrigerant, which makes the performance of
the system worse.
- When filling refrigerant, the refrigerant must always leave the
bottle in liquid form.
- R410A means that the pressure is about 1.6 times as high as for
conventional refrigerants.
- The filling connections on units with R410A are different sizes, to
prevent the system being filled with the incorrect refrigerant by
mistake.
Serial number
The serial number can be found at the bottom right of
the front cover and in the info menu (menu 3.1) and on
the type plate (PF1).
Serial number
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.
Environmental information
The equipment contains R407C or R410A, fluorinated
greenhouse gases with GWP values (Global Warming
Potential) of 1774 and 2088 respectively. Do not release
R407C or R410A into the atmosphere.
5Chapter 1 | Important informationF1345
General
L1
-X3 -X4
123
-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 2122
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 13123
-X23
-BT1
-BT50
-BT25
-BT6
AUX 1
AUX 2
AUX 3
-BT7
-BT71
2.0
AA101-X6
AA3-X23AA3-X21AA101-X9AA101-X7AA101-X5AA101-X3
AA101-X4 FC1 AA101-X8 AA101-X10 AA3-X6 AA3-X20 AA3-X22
AA101-XJ2
LEK
AA4
SF1
AA4-XJ4
AA4-XJ3
-XJ3
-XJ13
-XJ4
-XJ5
-XJ1
EP15
EP14
UB2
UB3
EP15-XL1
EP15-XL2
EP15-XL6
EP15-XL7
EP14-XL1
EP14-XL2
EP14-XL6
EP14-XL7
UB3
UB2
UB1
EP15-PF2
EP14-PF2
PF1
LEK
-XJ6
-AA101-X1
-AA101-X2
FC1 -AA101
-AA3
-AA27
-XJ10
-AA2
-XJ9
-AA26
-XJ11
-XJ7
-XJ8
F1345Chapter 2 | The heat pump design6
2 The heat pump design
Pipe connections
Connection, heating medium flowXL 1
Connection, heating medium returnXL 2
Connection, brine inXL 6
Connection, brine outXL 7
HVAC components
Cooling moduleEP 14
Cooling moduleEP 15
Sensors etc.
Outside sensorBT 1
Electrical components
Base card-AA 2
Input circuit board-AA 3
Terminal block, sensorAA3-X 6
Terminal block -EP14 -BP8AA3-X 20
Terminal block -EP15 -BP8AA3-X 21
Terminal block, flow meter -EP14 -BF1AA3-X 22
Terminal block, flow meter -EP15 -BF1AA3-X 23
Display unit-AA 4
-AA4-XJ3 USB outlet (no function)
-AA4-XJ4 Service outlet (No function)
Base card 2-AA 26
Relay board for base-AA 27
Interface boardAA101
Terminal block, incoming electrical supplyAA101-X 1
Terminal block, supply -EP14AA101-X 2
Terminal block, operating voltage out -X4AA101-X 3
Terminal block, operating voltage in (tariff
option)
AA101-X 4
Terminal block, supply, external accessories.AA101-X 5
Terminal block, -QN10 and -GP16AA101-X 6
Terminal block, step controlled or shunted
additional heat.
AA101-X 7
Emergency mode relayAA101-X 8
Alarm relay, AUX relayAA101-X 9
Communication, PWM, Power supplyAA101-X 10
Miniature circuit-breaker-FC 1
Switch on Display -AA4-SF 1
Connector, electrical supply to compressor,
cooling module -EP14
-XJ 1
Connector, electrical supply to compressor,
cooling module -EP15
AA101-XJ 2
Compressor heater -EP14-XJ 3
Connector, brine pump, cooling module
-EP14 (only 24 and 30 kW)
-XJ 4
Connector, heating medium pump, cooling
module -EP14
-XJ 5
Compressor heater-EP15-XJ 6
Connector, brine pump, cooling module
-EP15 (only 24 and 30 kW)
-XJ 7
Connector, heating medium pump, cooling
module -EP15
-XJ 8
Communication motor module -EP15-XJ 9
Communication motor module -EP14-XJ 10
Pumps, compressor heater -EP14-XJ 11
Communication motor module -EP14-XJ 13
Miscellaneous
Rating platePF 1
Type plate, cooling sectionPF 2
Serial number platePF 3
Cable gland, incoming electricityUB 1
Cable gland, powerUB 2
Cable gland, signalUB 3
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
7Chapter 2 | The heat pump designF1345
Electrical cabinets
F1345 24 kW, 3x400 V
LEK
LEK
FC1
AA10
Screws
Screws
F1345 30, 40 and 60 kW, 3x400 V
LEK
LEK
FC1
AA10
Screws
Screws
Electrical components
Soft-start cardAA 10
Miniature circuit-breakerFC 1
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
F1345Chapter 2 | The heat pump design8
Cooling section
F1345 24 and 30 kW, 3x400 V
LEK
AA100
BT10
BT11
QM2
BT12
GP2
GP1
BT3
QM1
X401
F1345 40 and 60 kW, 3x400 V
LEK
AA100
BT10
BT11
BT12
GP1
BT3
QM1
X401
QM2
LEK
F1345 24 kW, 3x400V
EP2
BT14
BT17
EP1
BP2
BT15
BP1
GQ10
HS1
XL21
QN1
EB10 XL20
BP8
LEK
F1345 30 kW, 3x400V
EP2
BT14
BP8
EP1
BP2
BT15
BP1
GQ10
HS1
XL21
QN1
EB10 XL20
BT17
BT29
LEK
F1345 40 kW, 3x400V
EP2
BT14
HS1
EP1
BT17
GQ10
XL21
BP1
BP8
XL20
QN1
EB10
BT15
BP2
BT29
LEK
F1345 60 kW, 3x400V
EP2
BT14
BP8
EP1
BT17
GQ10
XL21
BP1
HS1
XL20
QN1
EB10
BT15
BP2
BT29
9Chapter 2 | The heat pump designF1345
Pipe connections
Service connection, high pressureXL 20
Service connection, low pressureXL 21
HVAC components
Circulation pumpGP 1
Brine pumpGP 2
Drainage, climate systemQM 1
Draining, brine sideQM 2
Sensors etc.
High pressure pressostatBP 1
Low pressure pressostatBP 2
Sensor, low pressureBP 8
Temperature sensors, heating medium returnBT 3
Temperature sensor, brine inBT 10
Temperature sensor, brine outBT 11
Temperature sensor, condenser supply lineBT 12
Temperature sensor, hot gasBT 14
Temperature sensor, fluid pipeBT 15
Temperature sensor, suction gasBT 17
Temperature sensor, compressorBT 29
Electrical components
Joint cardAA 100
Compressor heaterEB 10
Joint connector, compressor and motor moduleX 401
Cooling components
EvaporatorEP 1
CondenserEP 2
CompressorGQ 10
Drying filterHS 1
Expansion valveQN 1
Designations in component locations according to
standard IEC 81346-1 and 81346-2.
F1345Chapter 2 | The heat pump design10