Samsung NH200WHXEA Installation manual

DHW Tank
NH080PHXEA
NH160PHXEA
NH200WHXEA
NH300WHXEA
NH200WHXES
NH300WHXES
E S F I P D DB98-32034A(2)
ENGLISH
DEUTSCH
Air to Water Heat Pump
- Hydro Unit
PORTUGUÊS
ITALIANO
FRANÇAIS
Indoor Unit
ESPAÑOL
INSTALLATION
MANUAL
Contents
Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Typical application examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Main components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensional drawing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pipe work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wiring work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DHW tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
E-2
3
5
8
10
11
12
13
15
22
31
34
Safety precautions
WARNING
ENGLISH
All materials supplied to this manual are indispensable for the safety of equipment.
Users shall establish appropriate safety and health practices and determine the applicability of
regulatory limitation based on following descriptions prior to use.
• Always disconnect the air to water heat pump from the power supply before
servicing it or accessing its internal components.
• Verify that installation and testing operations are performed by qualified personnel.
• Verify that the air to water heat pump is not installed in an easily accessible area.
GENERAL INFORMATION
 Carefully read the content of this manual before installing the air to water heat pump and store the
manual in a safe place in order to be able to use it as reference after installation.
 For maximum safety, installers shall always carefully read the following warnings.
 Store the user and installation manual in a safe location and remember to hand it over to the new owner
if the air to water heat pump is sold or transferred.
 This manual explains how to install an indoor unit with a split system with two SAMSUNG units. The use
of other types of units with different control systems may damage the units and invalidate the warranty.
The manufacturer shall not be responsible for damages arising from the use of non compliant units.
 The air conditioner is compliant with the requirements of the Low Voltage Directive (72/23/EEC), the EMC
Directive (89/336/EEC) and the Directive on pressurized equipment (97/23/EEC).
 The manufacturer shall not be responsible for damage originating from unauthorized changes or the
improper connection of electric and hydraulic lines. Failure to comply with these instructions or to
comply with the requirements set forth in the “Operating limits” table, included in the manual, shall
immediately invalidate the warranty.
 Do not use the units if damaged. If problems occur, switch the unit off and disconnect it from the power
supply.
 In order to prevent electric shocks, fires or injuries, always stop the unit, disable the protection switch and
contact SAMSUNG’s technical support if the unit produces smoke, if the power cable is hot or damaged
or if the unit is very noisy.
 Always remember to inspect the unit, electric connections, refrigerant tubes and protections regularly.
These operations should be performed by qualified personnel only.
 The unit contains moving parts, which should always be kept out of the reach of children.
 Do not attempt to repair, move, alter or reinstall the unit. If performed by unauthorized personnel, these
operations may cause electric shocks or fires.
 Do not place containers with liquids or other objects on the unit.
 All the materials used for the manufacture and packaging of the air to water heat pump are recyclable.
 The packing material and exhaust batteries of the remote control(optional) must be disposed of in
accordance with current laws.
 The air to water heat pump contains a refrigerant must be disposed in authorized center or returned to
retailer as special wastes.
INSTALLING THE UNIT
IMPORTANT: When installing the unit, always remember to connect first the refrigerant tubes, then the
electrical lines. Always disassemble the electric lines before the refrigerant tubes.
 Upon receipt, inspect the product to verify that it has not been damaged during transport. If the product
appears damaged, DO NOT INSTALL it and immediately report the damage to the carrier or retailer (if the
installer or the authorized technician has collected the material from the retailer.)
 After completing the installation, always carry out a functional test and provide the instructions on how
to operate the air to water heat pump to the user.
 Do not use the air to water heat pump in environments with hazardous substances or close to equipment
that release free flames to avoid the occurrence of fires, explosions or injuries.
E-3
Safety precautions (Continued)
POWER SUPPLY LINE, FUSE OR CIRCUIT BREAKER
 Always make sure that the power supply is compliant with current safety standards.
Always install the air to water heat pump in compliance with current local safety standards.
 Always verify that a suitable grounding connection is available.
 Verify that the voltage and frequency of the power supply comply with the specifications and that the
installed power is sufficient to ensure the operation of any other domestic appliance connected to the
same electric lines.
 Always verify that the cut-off and protection switches are suitably dimensioned.
 Verify that the air to water heat pump is connected to the power supply in accordance with the
instructions provided in the wiring diagram included in the manual.
 Always verify that electric connections (cable entry, section of leads, protections…) are compliant with
the electric specifications and with the instructions provided in the wiring scheme. Always verify that all
connections comply with the standards applicable to the installation of air to water heat pumps.
 Make sure that you earth the cables.
- Do not connect the earth wire to the gas pipe, water pipe, lighting rod or telephone wire.
If earthing is not complete, electric shock or fire may occur.
 Install the circuit breaker.
- If the circuit breaker is not installed, electric shock or fire may occur.
 Make sure that the condensed water dripping from the drain hose runs out properly and
safely.
 Install the power cable and communication cable of the indoor and outdoor unit at least 1m
away from the electric appliance.
E-4
ENGLISH
Product specifications
Accessories
Installation Manual(1)
User’s Manual(1)
Pattern Sheet(1)
Service Valve(2)
Wall Mounting Bracket(1)
Remote Controller Wire(1x15m)
(1)
Temperature sensor for
DHW Tank(1x15m) (1)
Cover Controller (1)
Ring band (1)
E-5
Product specifications (Continued)
Specifications
Type
Power Source
Operating Range
Operating Range
[Water]
Electric Heater
Dimensions
Weight
E-6
0~32
0~32
5~25
5~25
°C
15~55
15~55
kW
6
7
8
11
14
16
kg/min
17.0
20.5
23.0
31.5
40.1
45.9
kPa
-/53
-/51
-/45
-/64
-/59
-/54
No of speed
-
High
High
High
High
High
High
Output
W
180
200
Brazing plate
E.S.P
Type
Input power
Materials
-
Brazing plate
kW
2+2
2+4
-
INCOLOY 800
INCOLOY 800
-
Air-vent valve
Expansion vessel
1P, 230, 50
°C
°C
Pressure relief valve
Flow switch
NH160PHXEA
1P, 230, 50
Heat
Flow rate
Heat Exchanger
NH080PHXEA
Cool
Heating Capacity
Water Pump
Unit
V/Hz
3.0 bar [BSPP male 3/8”] 3.0 bar [BSPP male 3/8”]
inch
BSPP male 1/2”
BSPP male 1/2”
Set Point
LPM
12 ± 1.5
16 ± 1.5
Volume
Liter
8.0
8.0
Pre-charge
bar
1.0
1.0
mm
850 x 510 x 315
(1024 x 426 x 564)
850 x 510 x 315
(1024 x 426 x 564)
Net
kg
45
48
Gross
kg
55
58
Net(HxWxD)
Connecting Pipe[Refrigerant]
Liquid/Gas
inch
3/8”, 5/8”
3/8”, 5/8”
Connecting Pipe[Water]
Inlet/Outlet
inch
BSPP male 1 1/4”
BSPP male 1 1/4”
Indoor unit
Subsidiary materials
Capacity
EEV Kit
Duct
Wall mounted
Air to Water unit
Slim Duct
Vivace
Neo-Forte
Hydro Unit
2.2~5.6kW
2.2~7.1kW
2.2~7.1kW
8/16kW
-
MXD-A13K116B
MXD-A13K200B
MXD-A16K200B
MXD-A13K216B
MXD-A13K300B
MXD-A16K231B
MXD-A16K300B
≤3.6kW 1room + ≥5.6kW 1room
≤3.6kW x 2room
≥5.6kW x 2room
≤3.6kW 2room + ≥5.6kW 1room
≤3.6kW x 3room
≤3.6kW 1room + ≥5.6kW 2room
≥5.6kW 3room
-
EEV kit for 2/3 room
MXJ-YA1509K
(≤15.0kW and below)
Y-joint
Remark
Requisite
Requisite
Drain Pump
MDP-E075SEE3
-
-
-
Option
Wireless
remote
controller
MR-BH01
Included
Included
-
Option
Remote
controller
receive kit
MRK-A00
-
-
-
Option
Wired
remote
controller
MWR-TH01
-
-
Included
Option
Domestic
Hot
Water tank
-
-
-
NH300WHXES
NH300WHXEA
NH200WHXES
NH200WHXEA
Option
DHW tank
(200/300L,
200/300S)
 Subsidiary materials are compatible with CAC, DVM and FJM products.
 Components listed above are interchangeable only for Slim Duct, Vivace, Neo-Forte and Hydro unit.
 Install distribution kit for 1, 2 or 3 rooms on the ceiling or outdoor area.
 A2W:Air to Water
E-7
A2A:Air to Air
ENGLISH
Components interchangeability
Typical application examples
When the SAMSUNG Air-to-Water Heat Pump system is used in series with another heat source
(e.g. gas boiler). Ensure that the return water temperature not exceed 55°C. SAMSUNG shall not be
held liable for any damage resulting from not observing this rule.
 The below examples are for illustration purposes only.
Application 1: TDM(Time Division Multi)
 Air-to-Water: Water Heating & Space Heating
 Air-to-Air: Space Heating & Space Cooling
Outdoor
Indoor
EEV Kit
Space Cooling
RAC
Supply Header
Return Header
Hydro-unit
Outdoor unit
Radiator or FCU
Space Heating
Room
Controller
Water Heating
DHW Tank
Application 2: Space heating
Outdoor
Indoor
Room
Controller
45°C
Supply Header
Return Header
Radiators or Convectors
Load
Pump #1
 Our Supply Range
Load
Pump #2
[Application #2]
Thermostatic &
Balancing Valves
40°C
[Application #3]
Room Thermosat &
Actuators
Supply Header
Return Header
Outdoor unit
E-8
Hydro-unit
Mixing Tank
Under-Floor Heating Coils
[Application #1]
Zone Thermostat & 2way Valve
[Application #4]
Differential Pressure bypass Valve
Bypass
valve
ENGLISH
Application 3: Space heating + water heating
Outdoor
Indoor
Room
Controller
45°C
Supply Header
 Our Supply Range
Return Header
Radiators or Convectors
DHW Tank
Load
Pump #1
Load
Pump #2
[Application #2]
Thermostatic &
Balancing Valves
[Application #3]
Room Thermosat &
Actuators
40°C
Supply Header
Return Header
Outdoor unit
Under-Floor Heating Coils
Mixing Tank
Hydro-unit
[Application #1]
Zone Thermostat &
2way Valve
Bypass
valve
[Application #4]
Differential Pressure
bypass Valve
Application 4: Hybrid application(backup boiler and solar panel connected)
Outdoor
Indoor
So
Solar thermal Panel
la
rP
an
Room
Controller
el
Solar Pump
Back-up
Boiler
Supply Header
Return Header
Radiators or Convectors
 Our Supply Range
DHW Tank
Load
Pump #1
Load
Pump #2
[Application #2]
Thermostatic &
Balancing Valves
40°C
[Application #3]
Room Thermosat &
Actuators
Supply Header
Return Header
Outdoor unit
Hydro-unit
Mixing Tank
Under-Floor Heating Coils
[Application #1]
Zone Thermostat &
2way Valve
Bypass
valve
[Application #4]
Differential Pressure
bypass Valve
E-9
Main components
21
1
20
2
3
4
19
18
5
6
17
7
16
8
9
15
14
13
10
12
11
No.
Name
Note
1
Air vent 3/8”
2
Backup heater thermal fuse
Thermal cut out 94°C (+0, -6°C)
3
Backup heater thermostat
Disc. 65°C ±4°C
4
Backup Heater Element
Incoloy 800, 4/6kW, 230V AC 50Hz
5
Drain Hose
BSPP male 3/8”
6
Flow switch
12/16LPM ±1.5LPM
7
Water pump
1P-230V-50Hz, 46LPM x 54kPa
8
Manometer
ø48, 0~4 bar
9
Water outlet pipe
BSPP male, 1-1/4”
10
Drain valves
11
Service valve(L)
BSPP male, 1-1/4”
12
Service valve(R)
BSPP male, 1-1/4”
BSPP male, 1-1/4”
13
Water inlet pipe
14
Refrigerant pipe
ø9.52(3/8”)
15
Refrigerant pipe
ø15.88(5/8”)
16
Wire for controller
length 15m
17
Expansion Vessel
8 Liter, Pre-charge gas : 0.1 MPa, N2, BSPP male, 3/8”
18
Plate heat exchanger
19
LED display
20
Control box
21
Pressure relief valve
E-10
0.3 MPa, BSPP 1/2”
8
ENGLISH
Functional diagram
7
6
Tw2 14
15 Tw3
16
Tr1
3
5
Ref' In
4
10
Ref' Out
9
Tr2 17
Tw1 13
11
2
12
1
Water Out
No.
1
Water In
Note
Service valve(R)
2
Strainer
3
Flow switch
4
Heat exchanger
5
EEV kit
6
Backup heater
7
Pressure relief valve
8
Air-vent valve
9
Water pump
10
Expansion tank
11
Manometer
12
Service valve(L)
13
Water temp. sensor 1
14
Water temp. sensor 2
15
Water temp. sensor 3
16
Refrigerant temp. sensor 1
17
Refrigerant temp. sensor 2
E-11
Dimensional drawing
314.6
39.2
22.0
850.0
510.0
125.0
104.0
E-12
103.7
490
78.5
131.7
Installation of the indoor unit
The indoor unit should be installed indoors and meet the following conditions.
 Installation site should be sheltered from frost.
 In area with suitable space for servicing.
 A place with adequate ventilation.
 Where there is no risk of leakage of flammable gases.
 There is a provision for condensate drain and pressure relief valve blow-off.
 The wall for installation is a flat, vertical and non-combustible wall, capable of supporting the operation
weight of the unit.
Installation space
 Ensure to leave the appropriate space as indicated in the drawing.
 Installation site should be secured with adequate ventilation so that the components of hydro unit will
not be damaged from overheating.
200
(Unit :mm)
300
≥350
≥1200
500
 Before installing the indoor unit, fix the pattern sheet on the wall.
This sheet has a function to take correct position for the wall mounting bracket and screws.
<Pattern Sheet>
E-13
ENGLISH
Installing the unit
Installing the unit (Continued)
Mounting the indoor unit
Handle
 A minimum of two people should lift the unit by the handles and
not by the drain pan or pipe work.
 Drill 6 holes from the pattern sheet for fixing the wall bracket and unit. After completing holes, detach
the pattern sheet.
 Fix the wall-mount-bracket to the wall using appropriate plugs and screws(Use over M8 6 screws).
 Hang the indoor unit on an wall-mount-bracket and fix a front cabinet on the unit by using 4 screws.
• Fix screw through base panel
of the unit.
E-14
Refrigerant pipe work
For all guide lines, specifications regarding refrigerant pipe work between the indoor unit and the outdoor
unit, please follow the outdoor unit installation manual.
Gas pipe (O.D.)
Liquid pipe (O.D.)
Tightening Torque
Final Torque
15.9mm(5/8 inch)
9.5mm(3/8 inch)
400kg·cm
450kg·cm
Outdoor unit 15.9mm(5/8 inch)
9.5mm(3/8 inch)
700 kg·cm
750kg·cm
Indoor unit
When connecting the refrigerant pipes, always use 2 wrenches/spanners for tightening or loosening
nuts. If not, piping connections can be damaged.
Liquid Gas
pipe pipe
WATER
OUTLET
WATER
INLET
E-15
ENGLISH
Pipe work
Pipe work (Continued)
Water pipe work
The hydro unit is equipped with components listed on the table below.
The hot and cold water supply connections are clearly marked on the unit with labels. And service valves
are provided.
Whole water plumbing system including Hydro unit shall be installed by a qualified technician and must
comply with all relevant European and national regulations.
 Allowable water pressure of hydro unit is maximum 3.0 bar.
 2 service valves are provided with the Hydro unit. To facilitate service and maintenance work, install
R-Type service valve at the water inlet of the hydro unit and L-Type service valve at the water outlet of the
hydro unit.
 An air-vent valve is integrated on the hydro unit.
Please check that air purge valve is not overtightened so the air purge valve can release any air out of the
system during system operation.
3
4
2
6
7
5
1
Name
Hydro unit
E-16
Tightening Torque
1
1.25” BSPP
350~380 kgf•cm
34 ~ 37 N•m
2
3/8” BSPP
120 ~ 150 kgf•cm
12 ~ 15 N•m
3
Pressure relief valve
120 ~ 150 kgf•cm
12 ~ 15 N•m
4
Air-vent valve
120 ~ 150 kgf•cm
12 ~ 15 N•m
5
Manometer
200~230 kgf•cm
19 ~ 23 N•m
6
Flow switch
72~82 kgf•cm
7 ~ 8 N•m
7
Strainer
350~380 kgf•cm
34 ~ 37 N•m
ENGLISH
Flushing and air-purging
When filling water, the following start-up procedure should be followed.
1. All system components and pipes must be tested for the presence of leaks.
2. Preparation of a make-up water assembly or Flushing unit is recommended for installation and service.
3. Before connecting pipes to the hydro unit, Flush water pipes clean to remove contaminants during
1 hours using a flushing unit or tap water pressure if it is adequate (at 2 to 3 bar)
4. Fill water into the hydro unit by opening service valves.
5. Purge the air. (Fill with a flushing unit with sufficient capacity: avoid aerating the water)
6. Circulate for long enough to ensure that all air has been bled from the complete water piping system.
After installations, Commissioning should be performed by qualified representatives.
Unless flushing and air-purging works are performed adequately, It might result in malfunctions.
Hydro unit
Heater Vessel
Strainer
Flushing unit
(or purging cart)
Water Out
Water In
Service ports
for flushing & purging
Out of Indoor






Check and clean strainer periodically.
Replace strainer when necessary.
Its recommended that you flush the system for 4 hours minimum once a per annum.
Use chemical cleaning agents(Begin with acid , finish with alkali).
Install Air vents on the top of the system
Pressure of entering water(over 2.0 bar)
E-17
Pipe work (Continued)
The water volume and expansion vessel pressure
The unit is equipped with an expansion vessel of 8 litres which has a default pre-pressure of 1 bar.
To ensure correct operation of the unit, the pre-pressure of the expansion vessel might need to be adjusted
and the minimum and maximum water volume must be checked.
Norminal
ax
.
Hydraulic Head Loss(mH2O)
 To secure enough water flow rate, set water pump
speed as “Max.”.
 The standard pressure drop of the unit is
30~35 kPa.
 When it’s needed to get additional E.S.P(external
pressure drop) according to field piping works,
connect additional pumps(RS25/8) on the field
piping line in series.
m
8 Head
Operating range
7.5
7
6.5
6
5.5 54 kPa
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
46 LPM
0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 [m3/h]
H (mCE)
Water Flow Rate
18
16
14
12
10
8
6
4
2
0
 If the pressure loss of total system is over 54kPa,
additional water pump should be installed in
series.
Otherwise, the water flow rate might be decreased,
causing insufficient heating or cooling.
Head
1# pump
4# pump
1#+4# in series
In Series
108 kPa
Norminal
54 kPa
46 LPM
0
1000
2000
3000
4000
5000
6000
Q (L/h)
 Pre-pressure is adjusted by the total water volume.
Pre-pressure(bar)
2.5
2.0
1.5
Operation range
1.0
0.5
0.0
150
200
250
300
Total water volume(ℓ)
E-18
350
ENGLISH
Setting the pre-pressure of the expansion vessel
When it is required to change the default pre-pressure of the expansion vessel(1 bar), keep in mind the
following guidelines:
 Use only dry nitrogen to set the expansion vessel pre-pressure.
 Inappropriate setting of the expansion vessel pre-pressure will lead to malfunction of the system.
Therefore, the pre-pressure should only be adjusted by a licensed installer.
Expansion Vessel capacity (Liter)
14.00
12.00
10.00
Norminal
[Lit]
8.00
Operation range
6.00
4.00
2.00
0.00
50
100
150
200
250
300
350
400
Water volume (Litre) in total system including pipes
❈ Water volume of total system for reliable performance is minimum 50 litres.
Installation height
difference(a)
Water volume
< 220 Litres
> 220 Litres
Actions required:
• Pre-pressure must be decreased, calculate
according to
“Calculating the pre-pressure of the expansion
vessel”.
• Check if the water volume is lower than
maximum allowed water volume
<7m
No pre-pressure adjustment required.
>7m
Actions required:
• Pre-pressure must be increased, calculate the
appropriate value following by “Calculating the Expansion vessel of the unit too small for the
pre-pressure of the expansion vessel”.
installation.
• Check if the water volume is lower than
maximum allowed water volume
(a) Installation height difference: height difference(m) between the highest point of the water circuit and the indoor unit. If the
indoor unit is located at the highest point of the installation, the installation height is considered 0m.
Calculating the pre-pressure of the expansion vessel
The pre-pressure(Pg) to be set depends on the maximum installation height difference(H) and is calculated
as below:
Pg=(H/10+0.3) bar
E-19
Pipe work (Continued)
Charging water
After installation is completed the following procedures
shall be used to charge water into the hydro unit.
 Connect water lines to water connections of hydro unit.
 The air-vent valve shall be opened at least 2 turns and drain
valves shall be closed.
 Open the service valve in the water supply connection.
 Water pressure of supply line shall be over 2.0 bar for good
charging work.
 Stop water supply when the pressure gauge of hydro unit
indicates 2.0 bar.
Liquid Gas
pipe pipe
WATER
OUTLET
WATER
INLET
Air-vent valve
 Service space should be secured.
 Water pipe and connections must be cleaned using water.
 If internal water pump capacity is not enough, install
external water pump.
 Do not connect electric wire while water charging.
 When initial installation or re-installation required, open
the cap to prevent air trap in the unit while charging
water.
 The back-up heater vessel shall be full of water before
heater is turned on. Confirm if the vessel is empty by
opening the pressure relief valve of hydro unit.
(OK if water is flowing out)
 It is recommended to install the make-up water
assembly to feed small quantities of water to the system
automatically, replacing the minor water losses and
maintaining the system pressure.
This assembly usually consists of a pressure-reducing
valve, water filter, check-valve and shut-off valves.
In this case, Check-valve must be installed to prevent
from contaminating city water.
E-20
Cap
A pressure relief valve is integrated on heater vessel of hydro unit and shall work in abnormal condition for
protecting the hydro unit.
 The pressure relief valve will operate releasing the pressure by flowing out some water through
the drain hose.
 Make certain that the discharged water out of drain pan can not contact any electrical parts.
Piping insulation
The complete water circuit, including all piping must be insulated to prevent condensation forming on the
surface of the pipe and heat loss to external environment.
E-21
ENGLISH
Pressure relief valve
Wiring work
 Field-supplied electrical components such as power switch, circuit breakers, wires, terminal blocks,
etc must be properly chosen with compliance with national legislation or regulation.
 Switch off the power supply before making any connections.
 All field wiring and components must be installed by a licensed electrician.
 Use a dedicated power supply.
 All power connections must be protected from dew condensation by thermal insulation.
 The system shall be earthed. Do not earth the unit to a utility pipe, surge absorber or telephone
earth. Incomplete earth may cause electrical problems.
Layout of PCB
CN 54 (White)
1- 2 : HEATER OUT ( TW3 )
3- 4 : PIPE OUT ( TR2 )
5- 6 : PIPE IN ( TR1 )
7- 8 : OUTLET WATER ( TW2 )
9-10 : INLET WATER (TW1)
LED & Buzzer
CN 01 (White)
EEV
CN 62 (Blue)
Download port DHW tank temp. External room
temp.
CN10 (black) (Default, 15m)
(Optional, 15m)
CN 53 (Red)
CN 55 (White)
Solar temp.
CN52(Black)
Temp. Sensor
SMPS circuit
Communication
Micom
Flow switch
CN 51 (Blue)
COMM1
CN 31 (Red)
LED
CN 02
(White)
Load control
Fuse
Thermostat(DI)
3-Way diverting
Back-up
CN85(White)
valve CN 77 (White)
boiler (DO)
Backup Heater
CN 74 (Black)
CN 71 (Yellow)
2-Way valve
Solar pump (DI)
Thermostat AC-Power CN 76 (Red) Water pump Booster heater (DO)
CN 36 (White)
CN84(Blue)
CN 75 (Red) CN 73 (Yellow)
AC Power
CN 01 (Blue)
E-22
Wired
remote
controller
COMM2
CN 32 (Red)
ENGLISH
Wiring diagram
E-23
Wiring work (Continued)
Selecting solderless ring terminal
 Select a solderless ring terminal of a connecting power cable based on a nominal dimensions for cable.
 Cover a solderless ring terminal and a connector part of the power cable and then connect it.
Silver solder
Nominal Nominal
B
D
d1
E
F
L
d2
t
dimensions dimensions Standard
Standard
Standard
Standard
Allowance
Allowance
Allowance
Allowance
for cable for screw dimension
dimension
dimension
Min. Min. Max. dimension
Min.
(mm)
(mm)
(mm)
(mm)
(mm2)
(mm)
(mm)
(mm)
(mm)
(mm)
4
9.5
8
15
10
8
16
5
20
4.3
9
28.5
8.4
7.9
9
30
8.4
9.5
13
33
8.4
±0.2
5.6
+0.3
-0.2
3.4
±0.2
6
15
±0.2
7.1
4.5
±0.2
8
16
±0.2
9
5.8
±0.2
8
8
8
8
12
16.5
16
22
50
8
70
8
+0.3
-0.2
+0.3
-0.2
+0.5
-0.2
+0.5
-0.2
+0.5
-0.2
+0.5
-0.4
4/6
25
35
±0.3
11.5
±0.3
13.3
22
±0.3
13.5
24
±0.4
17.5
7.7
±0.2
11
15
13
13
13
38
43
8.4
8.4
8.4
8.4
34
9.4
±0.2
12.5
11.4
±0.3
17.5
14
50
8.4
13.3
±0.4
18.5
20
51
8.4
Torque requirements
1
2
3
3
3
3
2
#
3
E-24
Tightening Torque
1
7~9 kgf•m
68 ~ 88 N•m
2
11~12 kgf•m
107 ~ 117 N•m
3
13~15 kgf•m
127 ~ 147 N•m
+ 0.2
0
+0.4
0
+0.4
0
+0.4
0
+0.4
0
+0.4
0
+0.4
0
+0.4
0
0.9
1.15
1.45
1.7
1.8
1.8
2.0
ENGLISH
Types of allowable current
Conductors of supply cord shall have a nominal cross-sectional area not less than that shown in the table
below.
Minimum cross-sectional area of conductors
Rated current of appliance (A)
≤0.2
Nominal cross-sectional area (mm2)
Tinsel corda
≤0.2 and ≤3
0.5a
>3 and ≤6
0.75
>6 and ≤10
1.0(0.75)b
>10 and ≤16
1.5(1.0)b
>16 and ≤25
2.5
>25 and ≤32
4
>32 and ≤40
6
>40 and ≤63
10
Exterior connection
DHW Power IN/OUT
Main power
a: These cords may only be used if their length does not exceed 2m between the
point where the cord or cord guard enters the appliance and the entry to the plug.
b: Cords having the cross-sectional areas indicated in the parentheses may be used
for portable appliances if their length does not exceed 2m.
Grounding work
 Grounding must be done by a qualified installer for your safety.
Grounding the power cable
• The standard of grounding may vary according to the rated voltage and installation place of a heating
pump.
• Ground the power cable according to the following.
Installation place
Power condition
Electrical
potential of lower than 150V
Electrical
potential of higher than 150V
High humidity
Average humidity
Low humidity
Perform the
Perform the grounding work 2 if
grounding work 3. Note 1)
possible for your safety. Note 2)
Must perform the grounding work 3. Note 1)
(In case of installing circuit breaker)
 Note 1) Grounding work 3
◆ Grounding must be done by your installation specialist.
◆ Check if the grounding resistance is lower than 100Ω.
When installing a circuit breaker that can cut the electric circuit in case of a short circuit, the allowable
grounding resistance can be 30~500Ω.
Note 2) Grounding at dry place
◆ The grounding resistance is should be lower than 100Ω.
(It should not be higher than 250Ω)
E-25
Wiring work (Continued)
Connection of the power supply and communication cable
Description
No. of wires
Main power
Max. A
2+ground
32A
2
6A
Communication
Thickness
Supply Scope
4.0mm2 H05RN-F
or H07RN-F
0.75mm2 H05RN-F
or H07RN-F
Field supply (230V~, Input)
7Vdc data
2 wires for communication cable, 1 phase 3 wires(230V ~) for power supply
1 phase 230V~
Earth cable
(U-Trap)
Circuit breaker
Power
cable
Communication cable
between indoor and
outdoor units
Earth
Communication
cable
F1
N
L
N
L
N
F2
L
1 phase 1 phase
230V~ 230V~
Hydro unit
DHW Tank
Power wire connection
Communication cable connection
N
L1
L
N
L1
L
N
L1
L
L1
L2
N
L1
L2
N
L
C1
H1
N
L
N
L1
L2
N
L
C1
H1
N
L
N
N
L
C1
H1
3WAY VALVE 2WAY VALVE THERMO STAT1
(OUT)
(OUT)
(IN)
N
L
C2
H2
N
L
N
L
F1
F2
C2
H2
N
L
N
L
F1
F2
C2
H2
N
L
N
L
F1
F2
THERMO STAT2 BACK-UP SOLAR IN-OUT
(IN)
BOILER(OUT) PUMP(IN) COMM.
N
L
N
L
DHW TANK
POWER OUT
N
L
N
L
DHW TANK
POWER IN
N
L
N
L
MAIN
POWER IN
If the supply cable is damaged, it must be replaced by a special cable or assembly available from the
manufacturer or installer.
Circuit Breaker (ELCB, ELB, MCCB etc.) for outdoor and indoor units shall be installed by installers
because they are not sub-parts in the units. But you don't need to install for hydro unit (Built-in ELCB).
E-26
❈ ELCB : Earth leakage circuit breaker
ELB : Earth leakage breaker
MCCB : Molded case circuit breaker
ENGLISH
Connecting the power terminal
Connect the cables to the terminal board using the solderless ring terminal.
Use certified and reliable cables.
Connect the cables with the torque chart as below.
If the terminal is loose, fire may occur caused by arc.
If the terminal is connected too firmly, the terminal may be damaged.
 External force should not be applied to the terminal block and wires.
 The cable ties to fasten the wire should be an incombustible material, V0 or above.
(The cable ties should be used to fasten the power wire and they are supplied with the unit.)




Solderless
terminal
Cable tie
Thin cable
Thick cable
Separate the solderless terminal up
and down to prevent it being get loosen.
Place the thin cable upward and
the thick cable downward.
Secure the power cable
with the cable tie.
Tightening Torque (kgf • cm)
M3
M5
9~10 (19.8~22)
14~15 (30.8~33)
S
 et hydro unit address
Indoor unit
Y-Joint
EEV kit
Outdoor unit
Hydro unit
0
a
b
c
d
e
 How to set address of each unit
- Address of hydro unit has been set to “0“ from the factory.
- Address of each indoors unit shall be set to from 1 to 4 except “0”
ex) #1
#2
#3
E-27
Wiring work (Continued)
Connection of the backup heater power supply
Do not use a power supply shared by other appliances. Each components for outdoor unit, indoor
unit, backup heater and booster heater has the dedicated power supply.
Heater capacity (kW)
ELCB capacity (A)
NH080PHXEA
Model
4
30
NH160PHXEA
6
40
DHW tank(200 or 300)
3
20
 Circuit Breaker(ELCB, ELB, MCCB etc.)s written above are already included in the hydro unit.
❈ ELCB : Earth leakage circuit breaker
ELB : Earth leakage breaker
MCCB : Molded case circuit breaker
Booster heater ( DHW )
Back up
Heater 1
Back up
Heater 2
M/C
M/C
ELCB
ELCB
N
L
N
L
N
L
N
L
N
L
N
L
DHW Tank
E-28
ENGLISH
Connection of the thermostat
Description
Room Thermostat for
weather control
No. of wires
4
N L C1 H1
Thickness
Supply Scope
22mA
> 0.75mm2
Field supply (230V~, Input)
Process
Thermostat 1 Thermostat 2
N L C1 H1
Max. A
Thermostat
-Weather controller
- Changeover
(Heating and Cooling)
-230V AC
-4 wires
1. Before the installation, hydro unit should be turned
off.
2. Using the appropriate equipment to correct
position of terminal block as shown on the diagram.
3. Make sure what type is you use.
- Contact signal must be “ L “.
◆ When you install two thermostats, thermostat2
is prior to thermostat1.
Connection of the 2-way valve
Description
No. of wires
Max. A
Thickness
Supply Scope
Motorized 2-way valve to
shut off UFH loops during
cooling.
2+ground
22mA
> 0.75mm2
Field supply (230V~, Output)
N L C1 H1
C H
2-way motorized valve
-When outlet water temperature reach to lower than
16°C in cooling mode, UFH loops will be closed.
-230V AC
-2 wires(Normal Open or Normal Close)
: Normal Close type would be better for safety reason
Process
1. Before the installation, hydro unit should be
turned off.
2. Using the appropriate equipment to correct
position of terminal block as shown on the
diagram.
3. Make sure what type is you use.
– Normal OPEN or Normal CLOSED.
th
N
N L1L2
* Connection of 2 wires 2-way valve
Normal
closed type
In case of normal open type
when it opens (relay on)
N
L1
L2
Normal
open type
In case of normal closed type
- When it closes
- When it opens
N
N L1
Mixing
Tank
Floor
Heating
Mixing
Tank
Floor
Heating
2Way Valve
In case of normal open type
- When it opens
2Way Valve
- When it closes
N
Mixing
Tank
Floor
Heating
2Way Valve
Mixing
Tank
L2
Floor
Heating
2Way Valve
There are 2 types of 2-way valve, normal open type and normal closed type. Make sure to connect
terminals to right positions of terminal block. As detailed on the wiring diagram and illustrations above.
E-29
L
Wiring work (Continued)
Connection of the 3-way valve
Description
No. of wires
Max. A
Diverting type 3way valve
4
22mA
3-way diverting valve for water tank
-Diverting type
-230V AC
Thickness
0.75mm2 H05RN-F
or H07RN-F
Supply Scope
Field supply (230V~, Output)
N L1 L
When water pass to floor heating
Process
N
1. Before the installation, hydro unit should be
turned off.
2. Using the appropriate equipment to correct
position of terminal block as shown on the
diagram.
3. Make sure what type of 3 way V/V you use .
L1
When water pass to water tank
N L1 L
L
N
L
N L1
Floor
heating
Hydro
unit
Water
tank
L
Hydro
unit
Floor
heating
3Way Valve
Water
tank
3Way Valve
Connection of the back-up boiler
Description
Back-up Boiler
No. of wires
Max. A
2+ground
1A
Thickness
0.75mm2 H05RN-F
or H07RN-F
Supply Scope
Field supply (230V~, Output)
Process
1. Before the installation, hydro unit should be
turned off.
2. Using the appropriate equipment to correct
position of terminal block as shown on the
diagram.
3. Make sure EXT-CTRL signal of back up boiler
must be 230Vac.
◆ Do not connect supply power of back up
boiler directly.
When it set back up
boiler on the hydro unit
(relay off )
N L
When it order to
back up boiler operates
(relay on)
N L
N
N L
Boiler
Boiler
Connection of the solar circulation pump for DHW tank
Description
Solar pump
No. of wires
Max. A
2+ground
1A
Thickness
0.75mm2 H05RN-F
or H07RN-F
Supply Scope
Field supply (230V~, Input)
Process
1. Before the installation, hydro unit should be turned off.
2. Using the appropriate equipment to correct position of terminal
block as shown on the diagram.
3. It is for hydro unit to inform that the pump is operating.
4. Solar pump is controlled by installer’s handling. And it send the
signal to hydro unit depending on solar pump conditions.
In operating mode, signal shall be around 230Vac B/W N&L.
In non-operating mode, signal shall be around 0Vac B/W N&L.
E-30
In non-operating mode,
No signal to Hydro unit
In operating mode,
On-signal to Hydro unit
N L
N L
N L
Solar pump
Solar pump
Troubleshooting
ENGLISH
If the unit has some problem to work properly, the LED on hydro unit will flash and some error codes will be displayed on the controller.
The following table described the explanation of error codes on the LCD display.
Thermistor




Check its resistance. 10kohm@24°C (Hydro unit), 220kohm@24°C (DHW Tank, Solar)
Check its location as shown at the diagram.
Check its contact status with pipe.
Final solution is to change parts
Display
Explanation
EVA Inlet thermistor SHORT or OPEN
EVA Outlet thermistor SHORT or OPEN
Wired remote controller thermistor SHORT or OPEN
FRAM Read/Write Error(Wired remote controller data error)
Water Inlet thermistor SHORT or OPEN
Water Outlet thermistor SHORT or OPEN
PHE thermistor SHORT or OPEN
Water TANK thermistor SHORT or OPEN
E903
PHE
thermistor
Water outlet
Tw3
E902
Tw2
Tr1
EVA inlet
E122
Ref' In
Wired remote controller
thermistor
E653
Ref' Out
Tr2
EVA outlet
Tw1
E123
Water inlet
E901
Water Out
Water In
Water tank
thermistor
E904
E-31
Troubleshooting (Continued)
Communication
Display
Explanation
Abnormal communication B/W Wired remote controller & Hydro unit
Communication tracking error B/W Wired remote controller & Hydro unit
FRAM Read/Write Error(Wired remote controller data error)
E601, E604
E654
• Wrong data transmit B/W micom & IC07(eeprom)
E-32
ENGLISH
Water pump &flow S/W
Display
Explanation
Flow S/W “OFF” error (Condition : Flow switch signal is off during 10seconds when the
water pump signal is ON)
Flow S/W “ON” error (Condition : Flow switch signal is on during 10seconds when the
water pump signal is off)
Tw2
Tw3
Tr1
Ref' In
Ref' Out
Tr2
Tw1
Water Out
Water In
E911
• Water pump ON ( Flow S/W off )
Water flow>12 LPM(NH080PHXEA)
>16 LPM(NH160PHXEA)
• Water pump ON ( Flow S/W off ) : NOT enough water flow
Water flow>12 LPM(NH080PHXEA)
>16 LPM(NH160PHXEA)
E912
• Water pump OFF ( Flow S/W on )
E-33
DHW tank
Safety information
(Before installing an DHW Tank, please read this manual thoroughly to ensure that you know how to
safely and efficiently install a new appliance.)
WARNING
• If you don’t follow the safety precautions, you may get the risk of serious wound
or death.
 The installation must be done by the manufacturer or its service agent or a qualified person in order to
avoid a hazard.
- Installation by an unqualified person may cause a water leakage, electric shock or fire and so on.
 The electric work must be done by service agent or qualified persons according to national wiring
regulations and use only rated cable.
- Use certified power cable in the market suggested here and do electric work according to installation
manual otherwise, electric shock or fire may occur.
 Install the outdoor unit correctly according to the installation manual.
- An incorrect installation may cause a water leakage, electric shock or fire and so on.
 Manufacturer is not responsible for accidents due to incorrect installation.
 Use certified parts in the market and supplied parts from the factory.
- All wiring, components and materials to be procured on the site must comply with the applicable
local and national codes. If you don’t use the certified parts and tools, it can cause trouble to the air
conditioner and bring into injury.
 Install the DHW Tank on a hard and even place that can support its weight.
- If the place cannot support its weight, the outdoor unit may fall down and it may cause injury.
 Fix the outdoor unit securely on foundation it can fall over strong wind or earthquake.
- If the outdoor unit is not properly fixed, it turns over and accidents may occur.
 Secure power cable with a conduit, which is accessory part for DHW tank, not to be pulled out by external
force.
- If fixing is incomplete, it can cause trouble with a heat generation, electric shock or fire and so on.
E-34
 SAMSUNG Eco Heating system with SAMSUNG DHW tank is designed to withstand SAMSUNG durability
and reliability requirements. We cannot guarantee neither good operation nor reliability of total system
with other brand tanks.
 The piping, valves and system configuration of DHW tank system should be followed a relevant local or
national regulations.
 A pressure relief valve in accordance with an opening pressure of max. 0.9MPa should be connected.
 The electrical box must be opened by a licensed electrician.
 Switch off the power supply before opening the electrical box lid.
 Make sure that the installation location of DHW tank system including piping and valves is frost free.
DHW Tank shall be located and installed indoors (garage, multipurpose room, boiler room).
E-35
ENGLISH
General information
DHW tank (Continued)
Main components
Standard
14
1
9
3
12
6
8
10
11
5
7
2
1
4
13
Solar Connected
14
9
1
3
12
6
10
11
5
8
7
2
1
4
13
No.
Note
No.
Note
1
Top and bottom dome (pressure vessel)
2
Cylinder (pressure vessel)
3
Outer casing
9
4
Base
10
Thermistor pocket
Heating element 2.6kW,1x240V
11
Hole for Conduit/Cable gland
Heating element head
12
Electric box lid
O-ring for immersion heater
13
Adjustable feet
6
Thermostat kit
14
Foam Insulation
7
Heat Exchanger
15
Terminal Block
5
E-36
8
Anode 200 ltr
Anode 300 ltr
Recirculation dip tube
ENGLISH
Outlook diagram
1
Standard
2
3
4
5
1
Solar Connected
6
2
7
3
4
5
No.
1
Note
Hot water connection
2
Threaded thermistor hole
3
Flow inlet connection
4
Return outlet connection
5
Cold water connection
6
Flow inlet connection from solar panel
7
Flow outlet connection to solar panel
E-37
DHW tank (Continued)
Accessories
Leg (3)
E-38
Anode bar (1)
Conduit (1)
ENGLISH
Water tank specifications
Detailed information for the DHW Tank are described in the following table.
There are 4 types of DHW tank by size and operating ways.
Unit
Pressure vessel
Volume capacity
Heating coil for
Solar
Insulation
Solar Connected
NH300WHXEA
litres
198
287
INCOLOY 825
1P, 230~, 50
Duplex LDX 2101
m
0.71
2
m
2
-
-
-
-
Material quality
Thickness
287
2.6
V/Hz
Material quality
Heating Area
NH300WHXES
198
kW
Material quality
Heating Area
NH200WHXES
AISI 444 / DIN 1.4521
Material
Voltage
Heating coil
NH200WHXEA
Material quality
Capacity
Electric element
Standard
Duplex LDX 2101 Duplex LDX 2101
0.47
0.47
Polyurethane form
mm
40
Insulation jacket
Material quality
Dimensions
overall
Diameter
mm
585
585
585
585
Height
mm
1130
1580
1130
1580
Connections
Weight
Cold water inlet
inch
3/4” FBSP
Hot water outlet
inch
3/4” FBSP
Recirculation
mm
ø22mm straight tube (for compression fitting)
Flow & Return
mm
2 x 3/4” female
Sensor pocket(s)
mm
ø8.05 mm inside, 1/2” thread
Overall
Max. Water temperature
Other
Epoxy-coated mild steel – white
kg
°C
Packaging
Adjustable legs
47
61
51
65
70
Eco Foam - PUF
pcs
3
E-39
DHW tank (Continued)
Space requirements
Positions of water inlet and outlet pipe are affected by the layout of DHW Tank.
The layout of pipes and other components except DHW tank are the responsibility of installers.
The DHW Tank must be laid out in accordance with the illustrations as below to prevent any water leakage
and malfunction.
 Observe the clearances and dimensions as seen below during installing the water tank.
Note
 The installation space mentioned above is minimum suggested clearance.
 To secure enough service space and performance of system, take account of more sufficient
space.
 Be sure to install unit in a place strong enough to withstand its weight.
[Total weight 365 kg, Tank(65 kg), Water(300 kg)]
47°
40
0
30°
23°
E-40
110
220
(Unit :mm)
Volume
H
h
200
1130 800
300
1580 1250
475/630
H
296+h
90°
ENGLISH
Piping diagram
The product must be installed without any water leakage.
Please verify that the DHW tank and other components are properly installed and reinstall them
if necessary.
- Use certified components and the correct tools.
- Keep adequate space for the installing.
OVERVIEW
Field supply
Field installation
(Delivered with Hydro unit)
2
1
M
M3S
Hydro
unit
1
WATER
FLOW
Outdoor
unit
WATER
RETURN
FCU
or
Radiator
Option
DHW tank
WATER FLOW
WATER RETURN
OPTION SANITARY WARM WATER TANK
WATER MAIN OUT
WATER MAIN IN
10
TPRV
(*)
(*)
(*)
8
4
DHW tank
t>
Tw4
(*)
5
9
6
(*)
3
7
Field installation except DHW Tank
No.
1
2
3
4
5
6
7
8
9
10
TW4
Note
Service valve
3 way diverting valve
Drain valve
T-Joint
Tundish
Expansion vessel
T-Joint
Expansion relief valve
T-Joint
Pressure reducing valve with integrated check valve and strainer
Temperature sensor for DHW tank
 The table above contains the different components of the functional diagrams.
E-41
DHW tank (Continued)
System configuration
 For the reliable performance and durability, all parts as listed below ,including a relief valve, an
expansion vessel, a drain valve and pressure reducing valve , should be installed according to each
national or regional standards. They are not supplied by SAMSUNG.
- Pressure relief valve (9 bar)
- Expansion vessel (pre-charge pressure = 8 bar)
- Drain valve (manual type)
- Tundish
- Expansion relief valve
- Pressure reducing valve
 Screw the thermistor socket in the foreseen threaded thermistor hole in the tank, use a thread sealant
such as Teflon or similar to make water tight.
 Apply contact glue to the thermistor and insert the thermistor as deep as possible in the thermistor
socket. Fix using the nut provided.
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ENGLISH
Wiring diagram
Turn on the DHW tank and hydro unit after completing electric wiring works.
Do not disassemble the wirings out of the unit while the unit is operating.
Circuit breaker shall be installed for safety and maintenance .
Make sure of a earthing.
 Do not connect the earth wire to the gas pipe, water pipe, lighting rod or telephone wire.
If earthing is incomplete, electric shock or fire may occur.
40.4
66T
1
1
4
4
2
DATE CODE
CAL LOT NO.
59T 4117
2
59T
N
ø5.56
2 HOLES
L
42.52
50.8
63.5
Outer casing
Electrical connections – Technical Data:
Electric element:
2.6 kW 230V 1 phase, 1 1/4” connection with O-ring seal
Adjustable: Electric output can be reduced by cutting one bridge on the element.
Thermostat: Adjustable 40~70°C(preset 60°C)
Safety cut-off: 98°C
Electric central:
Internally connected from factory. Splash proof IP21.
For installation in sanitary rooms special regulations apply.
E-43
DHW tank (Continued)
Switch box layout
DHW tank temp.
(Default, 15m)
CN53(Red)
M/C
ELCB
N
L
N
L
N
To DHW tank 1P, 230V~ 50Hz
E-44
L
ENGLISH
Electrical connections
Procedure
Switch off the power supply before making any connections.
Use a thermal grease in thermistor pocket after installing electric connections.
Connections to be made in the electrical box of DHW tank
1. Connect the booster heater power supply and thermal protection cable.
2. Make sure to ensure strain relief of the cable.
Connections to be made in the electrical box of indoor units
3. Mount the prewired contactor (K3M) and circuit breaker (F2B). The contactor should be fixed with the
two screws supplied.
4. Connect the loose ends of the contactor to terminal 7 and 8 on the terminal block and the connector in
the socket X13A on the PCB.
5. Plug the thermistor cable connector in the socket X9A on the PCB.
6. Connect the booster heater power supply and thermal protection cable (field supply) to terminal 7, 8, 21,
22 and earth on the terminal block.
7. Connect the booster heater power supply cable to the circuit breaker (F2B) and earthing screw.
8. Fix the cables to the cable tie mountings with cable ties to ensure strain relief.
9. Set DIP switch SS2-2 on the PCB to ON.
It is of great importance that the heater is filled with water before the electricity is hooked up, or else- the
warranty is not valid. If the heater is installed and not used, it must be flushed with water once a week.
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DHW tank (Continued)
Power connection
1 phase 230V~
Circuit breaker
Earth cable
(U-Trap)
Power cable
Communication cable
between indoor and
outdoor units
Earth
F1
N
L
N
L
N
L
Communication
cable
F2
1 phase 1 phase
230V~ 230V~
Hydro unit
DHW Tank
Water circuit connection
1. Connect the water inlet and water outlet.
2. Connect the hot and cold water supply tubes.
3. Connect the pressure relief valve (field supply, opening pressure maximum 10 bar) and drain.
Note
E-46
It is important that the 3-way valve is fitted correctly:
When the 3-way valve is idle (not activated) the space heating circuit should be selected,
when the 3-way valve is activated the sanitary heating circuit should be selected.
ENGLISH
Troubleshooting
IMPORTANT: All maintenance or repair work must be executed by an approved installer.
Problem
Hot water is not coming out.
Heating is not working
Water is not warm enough
Safety valve(SV) is dripping.
Leak warning outlet is
dripping.
Other problems, or if none
of the above solves the
problem.
Possible cause
Solution
Check if there is any power on the power
No power supply to the water heater
supply terminal on the thermostat.
The thermostat may be set too high and
Reduce thermostat setting by 5°C and press
cause the fuse or safety cut-off to operate. the reset button.
Check if there is any power on the power
supply on the connector of the heating
Heating element or internal electrical wiring
element between black and yellow/green
is out of order.
wires. If this is OK, press the reset button on
the fuse/safety cut-off.
Adjust the thermostat up using a standard
Thermostat is set too low.
screwdriver.
Check the resistance of the heating element
Heating element or the internal electrical
on the connector of the heater bundle, and
wiring is partially out of order.
the condition of the internal wiring.
UX mixing valve(fitted on top) is incorrectly Adjust the UX mixing valve correctly to the
adjusted.
preferred temperature.
Water expands when heated. If there is no If drip from the SV is severe, it might need
consumption of hot water over a period of to be replaced. Some dripping is normal.
time pressure builds up, causing the safety Alternatively an expansion vessel can be
valve to open.
fitted.
The heating element may not be properly
Check the heating element o-ring seal and
tightened.
all connections.
There may be a leak.
Contact the installer/supplier regarding any
other failure.
Incorrect handling of thermostat, safety valve or other valves may lead to tank rupture. When servicing
the unit follow instructions carefully:
Always turn off main power supply when water supply is being shut off.
Test the free operation of the safety valve regularly by opening the valve ensuring the water flows freely.
Electrical connection and all servicing of the electrical components should only be carried out by an
authorized electrician.
Fitting and all servicing of plumbing fixtures should only be carried out by an authorized installer.
When replacing the thermostat, safety valve or any other valve or part supplied with this unit, use only
approved parts of the same specification.
Before resetting the safety cut-off or altering the thermostat setting, always remember to isolate
the electrical supply to the unit. This must be done prior to removing the electrical box lid.
If the electric element or thermostat is defective, contact authorized electrician.
After adjustments are completed, ensure the lid to the electrical box is refitted correctly and that
the retaining screw is properly fitted.
E-47