Nibe SAM 42 User guide

IHB EN 2119-1
631195
INSTALLER MANUAL
Supply air module
SAM 42
LEK

LEK
LEK

41 Important information
4Safety information
5General
72 Delivery and handling
7Transport
7Assembly
7Supplied components
7Compatible products
8Removing the covers
8Mounting
93 The design of the supply air module
10Pipe connections
10HVAC components
10Sensors etc.
10Electrical components
10Ventilation
10Miscellaneous
114 Pipe and ventilation connections
11General pipe connections
12Heating medium side
13Installation alternative
13General ventilation connection
13Ventilation flow
14Adjusting ventilation
14Dimension and ventilation connections
155 Electrical connections
15Supply
15Connecting communication
176 Commissioning and adjusting
17Preparations
17Filling and venting
18Start-up and inspection
197 Program settings
19Menu system
208 Disturbances in comfort
219 Accessories
2210 Technical data
22Dimensions and setting-out coordinates
23Technical specifications
24Electrical circuit diagram
26Contact information
3Table of ContentsSAM 42
Table of Contents

Safety information
This manual describes installation and service proced-
ures for implementation by specialists.
The manual must be left with the customer.
This appliance can be used by children
aged from 8 years and above and persons
with reduced physical, sensory or mental
capabilities or lack of experience and
knowledge if they have been given super-
vision or instruction concerning use of the
appliance in a safe way and understand
the hazards involved. Children shall not
play with the appliance. Cleaning and user
maintenance shall not be made by children
without supervision.
This is an original manual. It may not be
translated without the approval of NIBE.
Rights to make any design or technical
modifications are reserved.
©NIBE 2021.
System pres-
sure
Defined by
main
product
MPaMax. system
pressure, heat-
ing medium
Defined by
main
product
l/sMax flow
35°CMax. permitted
ambient temper-
ature
If the supply cable is damaged, only NIBE,
its service representative or similar author-
ised person may replace it to prevent any
danger and damage.
SYMBOLS
NOTE
This symbol indicates danger to person or ma-
chine .
Caution
This symbol indicates important information
about what you should consider when installing
or servicing the 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 electrical equip-
ment.
IP
Danger to person or machine.
!
Read the User Manual.
SAM 42Chapter 1 | Important information4
1 Important information

General
SOFTWARE VERSION
The heat pump must have software version 8432R2
(F370) or later. Visit www.nibeuplink.com and click on
the "Software" tab to download the latest software for
your installation or use the enclosed USB memory.
SERIAL NUMBER
The serial number can be found at the bottom left inside
the front cover.
LEK
Serial number
LEK
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.
When disposing of the product, its constituent
materials and components, e.g. compressors,
fans, circulation pumps and circuit boards, must be dis-
posed of at a special waste station or dealer who
provides this type of service.
To access the separate components, refer to the section
that shows the construction of the product. No special
tools are required for access.
Improper disposal of the product by the user results in
administrative penalties in accordance with current le-
gislation.
5Chapter 1 | Important informationSAM 42

INSPECTION OF THE INSTALLATION
In addition, fill in the page for the installation data in the User Manual.
Current regulations require the supply air module to be inspected before it is put into service. The inspection must
be carried out by a suitably qualified person.
DateSigna-
ture
NotesDescription
✔
Ventilation (page 13)
Setting ventilation flow exhaust air
Setting ventilation flow supply air
Heating medium (page 12)
System flushed
Accessories bled
Check against output and pressure
drop diagrams
Connected according to outline dia-
gram
Electricity (page 15)
Supply connected 230 V
Connected communication
SAM 42Chapter 1 | Important information6

Transport
The supply air module must be transported and stored
dry.
Assembly
SAM 42 is mounted free-standing on brackets, alternat-
ively above a VPB 200 (for VPB 300/VPBS 300 installa-
tion is carried out using brackets). Noise from the fan
can be transferred to the brackets.
•Install the brackets to an outside wall, ideally in a room
where noise does not matter, in order to eliminate
noise problems. If this is not possible, avoid placing
it against a wall behind a bedroom or other room
where noise may be a problem.
• Wherever the unit is located, walls to sound sensitive
rooms should be fitted with sound insulation.
• Route pipes so they are not fixed to an internal wall
that backs on to a bedroom or living room.
INSTALLATION AREA
Leave a free space of 800 mm in front of the supply air
module. All service on SAM 42 can be carried out from
the front.
800
NOTE
Ensure that there is sufficient space (300 mm)
above the supply air module for installing
ventilation hoses.
Supplied components
LEK
Vent hose
1 x
Support bushes
4 x
Compatible products
• F370
• F750
7Chapter 2 | Delivery and handlingSAM 42
2 Delivery and handling

Removing the covers
FRONT COVER
1. Remove the service cover by pulling it straight out.
LEK
Mounting
INSTALLING ON BRACKETS
1. Install SAM 42 on brackets (accessory BAU 40) as
illustrated below.
2. Connect heating medium pipes and ventilation ducts.
LEK
3 - 5 mm
INSTALLING ON WATER HEATER
VPB 200
1. Remove the service cover from VPB 200.
2. Remove the top panel from VPB 200 (installed with
6 screws).
3. Install DEW 40 according to the instructions in the
installation manual. The pipes in VPB 200 can be
adjusted/replaced in such a way that SAM 42 can
easily be installed above VPB 200.
4. Install SAM 42 from the top and slide into position.
LEK
5. Secure SAM 42 with the 2 screws supplied.
LEK
6. Connect heating medium and ventilation pipes.
7. Reinstall the service cover on VPB 200.
SAM 42Chapter 2 | Delivery and handling8

LEK
LEK
EP13 XL37 XL36
QN40
GQ3
Svenskt produktblad
GQ3EP13 XL36
XL37
BT69 BT68
QN40
LEK
LEK
XL33 XL34QM20
PF1 HQ11
Svenskt produktblad
XL33 BT23
HQ11
XL34
AA100
QM20.2
PF1
BT22
QM20.1
W101
W102
SF1
AA5
AA5-S2
9Chapter 3 | The design of the supply air moduleSAM 42
3 The design of the supply air
module

Pipe connections
Ventilation connection supply airXL33
Ventilation connection outdoor airXL34
Connection, heating medium inXL36
Connection, heating medium outXL37
HVAC components
Supply air batteryEP13
Venting heating mediumQM20.1
Venting heating mediumQM20.2
Control valve heating mediumQN40
Sensors etc.
Temperature sensor, supply airBT22
Temperature sensor, outdoor airBT23
Temperature sensor, flowBT68
Temperature sensor, returnBT69
Electrical components
Accessory cardAA5
Dip switchAA5-S2
Joint board1 AA100
Switch, position 0 - 1, main switchSF1
Cord with connection plugW101
Communication cableW102
Ventilation
Supply air fanGQ3
Air filter supply airHQ11
Miscellaneous
Rating platePF1
Designations according to standard EN 81346-2.
SAM 42Chapter 3 | The design of the supply air module10

General pipe
connections
Pipe installation must be carried out in accordance with
current norms and directives.
Dimensions and setting-out coordinates can be found
at the end of the manual.
SYMBOL KEY
MeaningSymbol
Expansion vessel
Fan
Compressor
Control valve
Temperature sensor
Reversing valve/shunt
Heat exchanger
SYSTEM DIAGRAM
Caution
This is an outline diagram. Actual installations
must be planned according to applicable
standards.
NOTE
External frost protection (outdoor air damper)
should be installed in the outdoor air duct, if
SAM 42 is installed in a cold climate.
-AZ2
SAM 40
SAM 42
11Chapter 4 | Pipe and ventilation connectionsSAM 42
4 Pipe and ventilation
connections

Heating medium side
DIMENSIONING THE SYSTEM
1. Check the water flow that is required for the SAM
42 using one of the diagrams for supply temperature
(35°C, 45°C or 55°C).
2. Check that the climate system’s pressure drop is
within the recommended range in the diagram for
“Working range SAM 42”
3. Check that the pump capacity from the heat pump
is sufficient for both the heating system and SAM
42.
NOTE
For supply air flows that are not in the dia-
grams, an estimate (linear interpolation) can be
made.
OUTPUT TRANSFER TO THE SUPPLY AIR
The diagrams show the required water flow through the
supply air coil for an 18°C supply air temperature at
various supply air flows.
Supply temperature 35°C
0-40 -35 -30 -25 -20 -15 -10 -5 0 5
200
400
600
800
1000
1400
1200
1600
Vattenflöde
(l/h)
Utetemperatur
(ºC)
18 l/s
71 l/s
53 l/s
36 l/s
Water flow
Outdoor temperature
Supply temperature 45°C
0-45 -40 -35 -30 -25 -20 -15 -10 0-5 5
50
100
150
200
250
350
300
400
Vattenflöde
(l/h)
Utetemperatur
(ºC)
18 l/s
71 l/s
53 l/s
36 l/s
Water flow
Outdoor temperature
Supply temperature 55°C
0-45 -40 -35 -30 -25 -20 -15 -10 0-5 5
50
100
150
200
250
Vattenfl de
(l/h)
Utetemperatur
(ºC)
18 l/s
71 l/s
53 l/s
36 l/s
Water flow
Outdoor temperature
WORKING RANGE SAM 42
Recommended pressure drop in the system
00 0,200,150,100,05 l/s
5
10
15
20
25
30
35
Tillg ngligt tryck
(kPa)
Vattenflöde
0 800 l/h600400200
Pressure drop across the
climate system
Water flow
The diagram shows the climate system’s required
pressure drop. The pressure drop across SAM 42 is the
same as that across the climate system that is parallel
with SAM 42.
Check that the working point is inside the grey area. If
the working point is inside the dark grey area, to the left
in the diagram, it can give rise to an oscillating supply
air temperature. If there is too low a pressure drop
across the climate system that is parallel with SAM 42,
there is a risk of ending up in the white area. In this area,
there is a risk of too low a water flow through the supply
air module and there is then a risk of freezing.
SAM 42Chapter 4 | Pipe and ventilation connections12

Installation alternative
SAM 42 can be installed in several different ways, some
of which are shown here.
Further option information is available at nibe.eu/ODM
and in the respective assembly instructions for the ac-
cessories used. See page 21 for a list of the accessories
that can be used with SAM 42.
VOLUME VESSEL
During hot water production, and when F750 is defrost-
ing, no energy is supplied to the climate system. For
this reason, to achieve satisfactory function of the supply
air module, stored energy must be available in the cli-
mate system during these operating cases. If there are
thermostat valves that can block the flow through the
radiators/underfloor heating coils, the volume in these
cannot be included in the system volume.
If the total volume in the climate system (excluding the
heat pump volume) is less than 40 litres, extra system
volume, e.g. volume vessel UKV, has to be connected
to the supply line after the heat pump.
-AZ2
SAM 40
UKV
SAM 42
EXTRA CLIMATE SYSTEM
In buildings with several climate systems that require
different supply temperatures, the accessory
ECS 40/ECS 41 can be connected.
SAM 42 is connected to the climate system that has
the lowest supply temperature.
-AZ2
-EP21-RM1
-EP21-GP10-EP21-BT2
-EP21-AA25
-EP21-BT3
-EP21-QN25
-EP21
SAM 40
ECS
UKV
SAM 42
General ventilation
connection
• Ventilation installation must be carried out in accord-
ance with current norms and directives.
• Connections must be made via flexible hoses, which
should be installed so that they are easy to replace.
• Provision must be made for inspection and cleaning
of the duct.
• Make sure that there are no reductions of cross-sec-
tional area in the form of creases, tight bends, etc.,
since this will reduce the ventilation capacity.
• The air duct system must be a minimum of air tight-
ness class B.
• To prevent fan noise being transferred to the ventila-
tion devices, install silencers in the ducts.
• The outdoor air duct is insulated using diffusion-proof
material (at least PE30 or equivalent) along its entire
length.
• Ensure that the condensation insulation is fully sealed
at any joints and/or at lead-in nipples, silencers, roof
cowls or similar.
• The air must be routed to the outdoor air duct through
an outer wall grille in the facade. The outer wall grille
must be installed so that it is protected from the
weather and must be designed so that no rainwater
and/or snow can penetrate the facade or follow the
air into the duct.
• When positioning the outdoor air and extract air
hood/grille, bear in mind that the two air flows must
not short circuit to prevent the extract air from being
drawn into SAM 42 again.
• When external devices that affect the ventilation are
used, for example kitchen fans and stoves, the heat
pump must be in operation. There is a risk of freezing
at low outdoor temperatures.
• It is not permitted to use a duct in a masonry chimney
stack for outdoor air.
Ventilation flow
The supply air flow must be lower than the exhaust air
flow to prevent over pressure in the house.
The ventilation capacity is set in the heat pump’s menu
system (menu 5.1.6).
13Chapter 4 | Pipe and ventilation connectionsSAM 42

Adjusting ventilation
To obtain the necessary air exchange in every room of
the house, the exhaust air device and the supply air
device must be correctly positioned and adjusted and
the fans in the heat pump and supply air module adjus-
ted.
Immediately after installation adjust the ventilation so
that it is set according to the projected value of the
house.
Incorrect adjustment of the ventilation may lead to re-
duced installation efficiency and thus poorer operating
economy, a poorer indoor climate and moisture damage
in the building.
Dimension and
ventilation
connections
Ø160
195
160
450
275
LEK
Supply air
Outdoor air
SAM 42Chapter 4 | Pipe and ventilation connections14

NOTE
All electrical connections must be carried out
by an authorised electrician.
Electrical installation and wiring must be carried
out in accordance with national provisions.
The main product must be disconnected from
the power supply when installing SAM 42.
• To prevent interference, sensor cables to external
connections must not be laid close to high voltage
cables.
• The minimum area of communication and sensor
cables to external connections must be 0.5 mm² up
to 50 m, for example EKKX, LiYY or equivalent.
• SAM 42 restarts after a power failure.
The electrical circuit diagram is at the end of this Installer
handbook.
Use a suitable tool to release/lock cables in terminal
blocks.
LEK
1
1
2
2
3
3
1
2
3
3
4
1
2
LEK
1
1
2
2
3
3
1
2
3
3
4
1
2
1
2
Supply
SAM 42 is connected to a earthed single-phase wall
socket or a permanent installation. For permanent install-
ations, SAM 42 must be preceded by a circuit breaker
with at least a 3 mm breaking gap.
Connecting
communication
ON
12345678
-X9
-X2
24 20212223 1516171819 1011121314 56789 1
1
N
L
PE
PE
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
234
-X8
-X4
-X10
-X1
AA5-S2
SAM 42 contains an accessory board (AA5) that con-
nects directly to the main product’s input board (terminal
block AA3-X4).
If more accessories are to be connected, or are already
installed, the boards are connected in series.
Because there can be different connections for accessor-
ies with accessory board (AA5), you should always read
the instructions in the manual for the accessory that is
to be installed.
15Chapter 5 | Electrical connectionsSAM 42
5 Electrical connections

AA3-X4
15
14
13
A
B
GND
AA5-X4
1
2
3
4
5
6
7
8
A
B
GND
A
B
GND
AA5-X4
1
2
3
4
5
6
7
8
A
B
GND
A
B
GND
ON
12345678
-X9
-X2
24 20212223 1516171819 1011121314 56789 1
1
N
L
PE
PE
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
234
-X8
-X4
-X10
-X1
ON
12345678
-X9
-X2
24 20212223 1516171819 1011121314 56789 1
1
N
L
PE
PE
1
2
3
4
5
6
7
8
2
3
4
5
6
7
8
9
234
-X8
-X4
-X10
-X1
Main product
Accessory card 1
Accessory card 2
AA5-X4
AA5-X4
AA3-X4
CONNECTION OF EXTERNAL FROST
PROTECTION (OUTDOOR AIR DAMPER)
For connection of external frost protection (outdoor air
damper), see the Installer Manual for the main product.
DIP SWITCH
The DIP-switch (S2) on the accessory board (AA5) is set
in the factory as below.
ON
12345678
SAM 42Chapter 5 | Electrical connections16

Preparations
PREPARATIONS
1. Make sure the heat pump is switched off.
2. Check that the filling valves are fully closed.
Filling and venting
FILLING THE CLIMATE SYSTEM
Fill with water using the filler valve in the heat pump.
VENTING THE CLIMATE SYSTEM
1. Vent SAM 42 through the vent valves (QM20.1),
(QM20.2) and the rest of the climate system
through its respective vent valves.
2. Keep topping up and venting until all air has been
removed and the pressure is correct.
Caution
Check that the system has been vented prior
to the heating season. Air in the supply air
module entails a risk of frost damage in cold
weather conditions.
-AZ2
SAM 40
QM20.1
SAM 42
QM20.2
17Chapter 6 | Commissioning and adjustingSAM 42
6 Commissioning and adjusting

Start-up and
inspection
START-UP WITH COMPATIBLE HEAT PUMP
NOTE
There must be water in the climate system
before the switch on the heat pump is set to
"".
1. Set switch (SF1) onSAM 42 in position "1".
2. Start the heat pump.
3. Follow the instructions in the display’s start guide.
If the start guide does not start when you start the
heat pump, you can start it manually in menu 5.7.
Commissioning with a compatible heat pump
The first time the installation is started a start guide is
started. The start guide instructions state what needs
to carried out at the first start together with a run
through of the installation’s basic settings.
The start guide ensures that the start-up is carried out
correctly and, for this reason, cannot be skipped.
Caution
As long as the start guide is active, no function
in the installation will start automatically.
The start guide will appear at each restart of
the installation, until it is deselected on the last
page.
SETTING THE VENTILATION
Ventilation must be set according to applicable stand-
ards. The supply air flow is adjusted to approx. 80% of
the exhaust air flow. The setting is made in menu 5.1.6.
Even if ventilation is roughly set at installation it is im-
portant that a ventilation adjustment is ordered and
permitted.
NOTE
Order a ventilation adjustment to complete the
setting.
Ventilation capacity
010 20 30 40 50 60 70 80 90
100
200
300
400
500
600
Tryck
(Pa)
Flöde
(l/s)
70%
60%
100%
90%
80%
50%
40%
Available pressure
Airflow
Fan rating
010 20 30 40 50 60 70 9080
20
40
60
80
100
120
140
Effekt
(W)
Flöde
(l/s)
60%
50%
40%
100%
90%
80%
70%
Output
Airflow
SAM 42Chapter 6 | Commissioning and adjusting18

Caution
See also the User and/or Installer Manual for
the main product.
Menu system
If you do not make all settings via the start guide or need
to change any of the settings, this can be done in the
menu system.
MENU 5.2 -SYSTEM SETTINGS
Activating/deactivating of accessories.
Select: "ext sup air md"
MENU 5.3.9 - EXT SUP AIR MD
Setting the supply air temperature.
When changing the supply air temperature, the settings
for other parts of the climate system may need to be
adjusted.
outdoor temp.T1
supply air temp. at T1
outdoor temp.T2
°C
°C
°C
ext sup air md 5.3.9
supply air temp. at low outd
temp.
supply air temp. at avg outdoor
temp.
18
Caution
This accessory may require a program software
update in your heat pump.
The heat pump must have software version
8432R2 (F370) or later.
19Chapter 7 | Program settingsSAM 42
7 Program settings

In most cases, the main product notes a malfunction (a
malfunction can lead to disturbance in comfort) and in-
dicates this with alarms and shows action instructions
in the display.
If the operational interference is not shown in the display
the following tips can be used:
BASIC ACTIONS
Start by checking the following items:
• That the heat pump is operating and the supply cable
to SAM 42 is connected.
• Group and main fuses of the accommodation.
• The property's earth circuit breaker.
LOW HOT WATER TEMPERATURE OR A
LACK OF HOT WATER
• The heat pump has temporarily prioritised supply air
ventilation to prevent too low temperatures in the
supply air coil.
LOW ROOM TEMPERATURE
• Incorrect value set in supply air automatic control
system.
– Enter menu 5.3.9 (ext sup air md) and adjust the
setting for the supply air temperature.
HIGH ROOM TEMPERATURE
• Incorrect value set in supply air automatic control
system.
– Enter menu 5.3.9 (ext sup air md) and adjust the
setting for the supply air temperature.
LOW OR A LACK OF VENTILATION
• Filter (HQ11) blocked.
– Change the filter.
• The ventilation is not adjusted.
– Order/implement ventilation adjustment.
• Supply air device closed, blocked or throttled down
too much.
– Check the supply air inlets.
• Check external frost protection (outdoor air damper).
HIGH OR DISTRACTING VENTILATION
• Filter (HQ11) blocked.
– Change the filter.
• The ventilation is not adjusted.
– Order/implement ventilation adjustment.
LOW SUPPLY AIR TEMPERATURE
• Air in the heating medium system.
– Vent SAM 42 using vent valve (QM20.1) and
(QM20.2).
• Incorrect value set in supply air automatic control
system.
– Enter menu 5.3.9 (ext sup air md) and adjust the
setting for the supply air temperature.
HIGH SUPPLY AIR TEMPERATURE
• Incorrect value set in supply air automatic control
system.
– Enter menu 5.3.9 (ext sup air md) and adjust the
setting for the supply air temperature.
SAM 42Chapter 8 | Disturbances in comfort20
8 Disturbances in comfort