Arden BLN-006TC1 User manual

Heat Pump for Heating & Cooling & DHW
Service Manual
Model:
BLN-006TC1
BLN-012TC1、BLN-012TC3
BLN-018TC1、BLN-018TC3
ARDEN Heat Pumps Pty Ltd

Service Manual

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ARDEN Heat Pumps Pty
contents
1. Product introduction .....................................................................................................................4
1.1. Product model pictures ......................................................................................................4
1.2. Parameter Table .................................................................................................................5
1.3. Dimension...........................................................................................................................6
1.3.1. BLN-006TC1.............................................................................................................6
1.3.2. BLN-012TC1、BLN-012TC3......................................................................................6
1.3.3. BLN-018TC1、BLN-018TC3......................................................................................7
1.4. Exploded view.....................................................................................................................8
1.4.1. BLN-006TC1、BLN-012TC1、BLN-012TC3...............................................................8
1.4.2. BLN-018TC1、BLN-018TC3......................................................................................9
1.5. System diagrams and performance curves.......................................................................10
1.5.1. Schematic diagram of the cooling system .............................................................10
1.5.2. How heat pumps work...........................................................................................10
1.5.3. Introduction to Heat Pump System Components ..................................................11
1.5.4. Heating Performance Curve...................................................................................13
2. Product selection and installation ...............................................................................................18
2.1. Product installation instructions and special precautions ................................................18
2.1.1. Disclaimer..............................................................................................................18
2.1.2. warning..................................................................................................................18
2.1.3. Precautions............................................................................................................19
2.2. Installation........................................................................................................................19
2.2.1.Heat pump installation...........................................................................................19
2.2.2. Auxiliary pump installation....................................................................................20
23. Pipeline installation; water pressure commissioning; pipeline insulation requirements 21
2.3.1. Water distribution installation system diagram.....................................................21
2.4. Precautions for electrical wiring .......................................................................................23
2.5. Room heat load calculation ..............................................................................................24
2.5.1. basic requirements................................................................................................24
2.5.2. water system design ..............................................................................................26
2.5.3. Distributor and water collector configuration principal.........................................27
2.5.4. Selection of floor heating heat pump unit.............................................................27
2.6. *Waterway antifreeze protection.....................................................................................37
3. Electrical operation......................................................................................................................39
3.1. Control..............................................................................................................................39
3.1.1. out of service.........................................................................................................39
3.1.2. DC water pump control（PWM）.........................................................................39
3.1.3. Start control...........................................................................................................39
3.1.4. High temperature sterilization...............................................................................42
3.1.5. Silent mode............................................................................................................42
3.1.6. Waterway emptying mode/forced open water pump ...........................................42
3.1.7. Forced defrost .......................................................................................................42

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3.1.8. Linkage control ......................................................................................................42
3.1.9. Refrigerant recovery function................................................................................43
3.1.10. Expiry date password setting...............................................................................43
3.1.11. Electric heating control EH1/gas control signal output........................................43
3.1.12. Heating auxiliary electric heater EH2...................................................................44
3.1.13. Unit auxiliary pump P_c.......................................................................................45
3.1.14. Hot water three-way valve SV1............................................................................45
3.1.15. Air conditioning three-way valve SV2..................................................................45
3.1.16. Air conditioner secondary water pump P_b (secondary system) ........................46
3.1.17. Heat source hot water pump P_e........................................................................46
3.1.18. Heat source heating water pump P_f..................................................................47
3.1.19. winter frost protection ........................................................................................47
3.1.20. Host water flow switch protection ......................................................................48
3.1.21. Protection against excessive temperature difference between inlet and outlet
pipes 49
3.1.22. High voltage protection.......................................................................................50
3.1.23. Low voltage protection........................................................................................50
3.1.24. Exhaust temperature too high protection ...........................................................50
3.2. Display and operation of the wire controller....................................................................51
3.2.1. Wire controller interface display and operation....................................................51
3.2.2. Setting and operation of climate temperature curve.............................................55
3.2.3. Setting and operation of unit tooling number.......................................................57
3.2.4. Network connection method and display of multiple units...................................58
3.2.5. Operation method of unit status parameter query ...............................................59
3.2.6. Factory parameter setting method........................................................................61
3.2.7. Reset......................................................................................................................63
3.2.8. *Touch screen controller operation.......................................................................64
L parameter setting table.................................................................................................80
P parameter setting table................................................................................................81
3.3. Setting method of pump flow range setting value ...........................................................85
3.4. Outdoor unit electric control box layout ..........................................................................85
3.4.1. BLN-006TC1...........................................................................................................85
3.4.2 BLN-012TC1............................................................................................................86
3.4.3. BLN-006TC1/ BLN-012TC1/ BLN-018TC1 ...............................................................86
3.4.4. BLN-012TC3...........................................................................................................87
3.4.5. BLN-018TC3...........................................................................................................87
3.1.6. BLN-012TC3/BLN-018TC3 ......................................................................................88
3.5. Host unit port definition diagram.....................................................................................88
3.5.1. Main control board port definition diagram (AP1) ................................................88
3.5.2. Port Definition Diagram of Water Pump Expansion Board (AP3)...........................89
3.5.3. Port definition diagram of switching power supply (AP4)......................................91
3.5.4. DC fan board port definition diagram (AP5) ..........................................................92
3.5.5. Compressor driver board port definition diagram (AP4) .......................................92
3.6. Fault code and fault reason..............................................................................................94

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3.7. Waterway installation and wiring.....................................................................................99
3.7.1. Comparison of system legends..............................................................................99
3.7.2. Single floor heating mode water system installation diagram.............................101
3.7.3. Heating or cooling mode water system installation diagram...............................101
3.7.4. Schematic diagram of wiring in floor heating, heating, and cooling modes........102
3.7.5. Hot water + cooling or hot water + heating mode water system installation
diagram..........................................................................................................................103
3.7.6. Hot water + floor heating mode water system installation diagram....................103
3.7.7. Water wiring diagram for hot water + cooling, hot water + heating, hot water +
floor heating modes ......................................................................................................104
3.7.8. Mixed mode waterway system installation diagram............................................105
3.7.9. Wiring diagram in hybrid mode...........................................................................106
3.7.10. Cascade mode waterway installation schematic ...............................................107
3.7.11. Cascading mode water circuit wiring diagram...................................................108
3.7.12. Floor heating + refrigeration + hot water + gas waterway installation schematic
.......................................................................................................................................109
3.7.13. Floor heating + refrigeration + hot water + gas water circuit wiring diagram....110
3.7.14. Three-way valve wiring method ........................................................................111
3.8. Wiring diagram of each model .......................................................................................112
3.8.1. BLN-006TC1/ BLN-012TC1/ BLN-018TC1 .............................................................112
3.8.2. BLN-012TC3/ BLN-018TC3 ...................................................................................113
3.9. NCT Sensor Resistance Table..........................................................................................114
4. Error Diagnosis and Treatment..................................................................................................116
4.1. maintenance tools..........................................................................................................116
4.2. Model disassembly and parts .........................................................................................118
4.3. Troubleshooting and maintenance of common fault codes ...........................................141
Schedule........................................................................................................................................153
Schedule A: Unit Ground Heat Dissipation and Ground-to-Soil Heat Loss.............................153
(1) Heat dissipation per unit ground area of PE-X pipe and heat loss when turning
downwards....................................................................................................................153
(2) Heat dissipation per unit ground area of PB pipe and heat loss when turning
downwards....................................................................................................................156
Schedule B: Coefficient of Expansion of Water......................................................................159

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1. Product introduction
1.1. Product model pictures
Model
BLN-006TC1
BLN-012TC1、BLN-012TC3
BLN-006TC1
BLN-012TC1、BLN-012TC3
Picture
Model
BLN-018TC1、BLN-018TC3
Picture
Table 1-1

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1.2. Parameter Table
DC Inverter heat pump (R290)
Model：
BLN-006TC1
BLN-012TC1
BLN-012TC3
BLN-018TC1
BLN-018TC3
Heating Capacity Range
kW
3.00~9.05
4.30-15.20
4.30-15.20
7.24-21.9
7.24-21.9
Heating 1
Heating Capacity
kW
6.18
12.05
12.05
18
18
Power Input
kW
1.30
2.61
2.61
3.94
3.94
COP
W/W
4.75
4.61
4.61
4.57
4.57
Heating 2
Heating Capacity
kW
6.16
12.18
12.18
18
18
Power Input
kW
2.03
4.05
4.05
5.90
5.90
COP
W/W
3.03
3.01
3.01
3.05
3.05
Cooling 1
Cooling Capacity
kW
5
10
10
15
15
Power Input
kW
1.91
3.51
3.51
5.77
5.77
EER
W/W
2.62
2.85
2.85
2.60
2.60
Cooling 2
Cooling Capacity
kW
6.05
12.11
12.11
17.95
19.95
Power Input
kW
1.57
3.01
3.01
4.66
4.66
EER
W/W
3.85
4.02
4.02
3.85
3.85
ERP Level（35℃）
/
A+++
A+++
A+++
A+++
A+++
ERP Level（55℃）
/
A+++
A+++
A+++
A+++
A+++
SCOP（35℃）
/
4.83
4.85
4.85
4.90
4.90
SCOP（55℃）
/
3.86
3.84
3.84
3.85
3.85
Rated water flow
m3/h
1.03
1.90
1.90
3.1
3.1
Rated voltage
V
230V
230V
400V/3N~
230V
400V/3N~
Frequency
Hz
50
50Hz
50Hz
50Hz
50Hz
Maximum input power
kW
3.5
5.4
5.4
7.5
10.5
Maximum input current
A
15
25
10
35
17
Fuse protector
rated current
/
15
25
10
35
18
fusing current
/
23
34
15
53
26
Air switch
A
16
32
16
50
25
Sectional area of conductor
mm²
2.5
4
2.5
6
4
Water Piping Connections
inch
G1"
G1"
G1"
G1 1/4”
G1 1/4”
High pressure value cut-off pressure
MPa
3.2
3.2
3.2
3.2
3.2
Low pressure valve cut-off pressure
MPa
0.8
0.8
0.8
0.8
0.8
Table 1-2
Rated Test Conditions:
Heating¹: Ambient Temp 7℃/6℃(DB/WB),Water-In/Out Temp 30℃/35℃;Heating²: Ambient Temp 7℃/6℃(DB/WB),Water-In/Out Temp 47℃/55℃
Cooling¹: Ambient Temp 35℃/24℃(DB/WB),Water-In/Out Temp 12℃/7℃; Cooling²: Ambient Temp 35℃/24℃(DB/WB),Water-In/Out Temp 23℃/18℃
Note: Parameters are subject to change without prior notice. Please refer to the unit nameplate.

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1.3. Dimension
1.3.1. BLN-006TC1
1.3.2. BLN-012TC1、BLN-012TC3
Figure 1-1
Figure 1-2

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1.3.3. BLN-018TC1、BLN-018TC3
Figure 1-3

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1.4. Exploded view
1.4.1. BLN-006TC1、BLN-012TC1、BLN-012TC3
Figure 1-4
No.
Component
No.
Component
No.
Component
1
Outlet
17
Expansion valve bracket
33
safety valve
2
Baffle
18
Expansion tank fixing plate
34
Safety valve drain connector
3
Wind leaf
19
Expansion tank
35
drain hose
4
Motor
20
seat plate
36
Water pump inlet pipe
5
Motor bracket
21
waterproof connector
37
Frequency conversion water pump
6
Left side plate
22
Terminal block mounting plate
38
plate swap out water pipe
7
left column
23
rear right panel
39
Plate replacement water inlet pipe
8
Evaporator
24
terminal block
40
Replace the plate into the fluorine tube
9
Top frame
25
Crimping buckle
41
Replace the fluorine tube with the plate
10
Electrical control part
26
junction box cover
42
Plate heat exchanger
11
Electrical box cover
27
right side panel
43
Liquid reservoir
(non-standard configuration)
12
Top cover
28
draw hands
44
compressor
13
Section
29
right front pillar
45
chassis components
14
Electrical antibody
30
Flow switch
46
right panel
15
Four -pass valve components
31
Auto exhaust valve
47
front right panel
16
Electronic expansion valve component
32
Expansion tank connection
48
front left panel

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1.4.2. BLN-018TC1、BLN-018TC3
Figure 1-5
No.
Component
No.
Component
No.
Component
1
Air outlet grille
18
Plate heat exchanger
35
Safety valve drain connector
2
Baffle
19
Replace the plate into the fluorine tube
36
drain hose
3
left side panel
20
Flow switch
37
Repair shut-off valve
4
left column
21
Auto exhaust valve
38
Water pump inlet pipe
5
wind blade
22
plate swap out water pipe
39
Frequency conversion water pump
6
motor
23
seat plate
40
water pump bracket
7
motor bracket
24
waterproof connector
41
Replace the fluorine tube with the plate
8
Evaporator
25
front right pillar
42
Plate replacement water inlet pipe
9
top frame
26
rear right panel
43
Expansion tank connection
10
Electronic control components
27
rear right column
44
Board replacement bracket
11
Electrical box cover
28
Terminal block mounting plate
45
Electronic Expansion Valve Assembly
12
top cover
29
terminal block
46
Four-way valve assembly
13
Reactor protection cover
30
junction box cover
47
compressor
14
Reactor
31
right side panel
48
chassis components
15
Partition
32
draw hands
49
right panel
16
Expansion tank
33
Crimping buckle
50
front right panel
17
Expansion tank fixing plate
34
safety valve
51
front left panel

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1.5. System diagrams and performance curves
1.5.1. Schematic diagram of the cooling system
Figure 1-6
Code
Component
Code
Component
Code
Component
1
compressor
12
manual drain valve
T4
Inner coil temperature sensor
2
Four-way reversing valve
13
Expansion tank
T7
ambient temperature sensor
3
plate heat exchanger
14
Manual exhaust valve
(non-standard configuration)
T8
Inlet water temperature sensor
4
heat recovery
15
safety valve
T15
Outlet water temperature T15 sensor
5
filter 1
16
Auto exhaust valve
P1
High pressure pressure sensor
6
check valve
17
Flow switch
P2
High voltage switch
7
Auxiliary throttle capillary
18
High Pressure Service Valve
P3
Low Pressure Sensor
8
filter 2
19
Low Pressure Service Valve
P4
low voltage switch
9
Finned Exchanger
T1
coil temperature sensor
EEV
main electronic expansion valve
10
outdoor fan
T2
Suction temperature sensor
11
Circulating pump
T3
exhaust temperature sensor
1.5.2. How heat pumps work
The heat pump system is mainly composed of four major components: compressor,
condenser, throttling device and evaporator. Its working principle is to use electric energy to
drive the compressor to compress the low-temperature and low-pressure gaseous refrigerant
into high-temperature and high-pressure steam, then condense and dissipate heat in the
condenser (plate heat exchanger), and release the heat to the heat transfer medium (water ), the
heat source is provided to the user through the heat transfer medium (water) for heating or
domestic hot water; the condensed medium-temperature and high-pressure refrigerant

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becomes a low-temperature and low-pressure liquid after being throttled by the throttling
device, and then passes through the evaporator (fin Plate heat exchanger) absorbs heat into the
air environment and vaporizes to form a low-temperature and low-pressure gas, which enters
the compressor again to be compressed, thus forming a repeated cycle.
Working principal diagram:
Figure 1-7
1.5.3. Introduction to Heat Pump System Components
No.
Picture
Name
Function Description
１
DC inverter
compressor
The compressor is the heart of the heat pump system. It is a "steam pump"
that compresses low-temperature and low-pressure vapor into
high-temperature and high-pressure vapor, and provides power for the
refrigerant to circulate in the heat pump system.
２
plate heat
exchanger
Plate heat exchanger is a kind of water side heat exchanger. It is used as a
condenser and an evaporator. When heating, it is a condenser, which
condenses the high-temperature and high-pressure gaseous refrigerant into a
medium-temperature and high-pressure liquid state, and transfers the
condensation heat to the heat exchange medium (water); when cooling, it is an
evaporator, which converts the low-temperature and low-pressure liquid state
The refrigerant evaporates into a gaseous refrigerant, absorbing heat from the
heat transfer medium (water) during evaporation.
３
Finned heat
exchanger
Finned heat exchangers can be used as condensers and evaporators. When
heating, it is an evaporator, which evaporates the low-temperature and
low-pressure liquid refrigerant into a gaseous state and absorbs the heat in the
air. When cooling, it is a condenser, which condenses the high-temperature
and high-pressure gaseous refrigerant into a medium-temperature and
high-pressure liquid, and dissipates heat into the air.

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４
reservoir
When the heat pump unit is running, due to changes in working conditions or
adjustments to the cooling capacity, the refrigerant circulation in the system
will change. After the liquid receiver is installed, the liquid storage capacity of
the liquid receiver can be used to balance and stabilize the refrigerant
circulation in the system, so that the heat pump unit can always run efficiently
and reliably.
５
Gas-liquid
separator
The refrigerant returned from the evaporator to the compressor is separated
into gas and liquid, preventing liquid refrigerant from entering the compressor,
damaging the lubrication or damaging the pump body.
6
heat recovery
Increase the subcooling degree of the heat pump system, increase the suction
temperature, and improve the capacity and energy efficiency of the heat pump
unit
7
Electronic
expansion
valve
Throttling and pressure-reducing device, throttling medium-temperature and
high-pressure liquid refrigerant into low-temperature and low-pressure liquid
refrigerant
8
Four-way
reversing valve
Change the refrigerant flow direction to realize the switching function of
cooling, heating and defrosting
9
Solenoid valve
(spray solenoid
valve, throttle
solenoid valve)
Control the circulation and disconnection of refrigerant in the pipeline by
opening and closing the solenoid valve
10
Pressure
Sensor
The role of the high-pressure pressure sensor: unit high-pressure protection,
compressor/fan frequency limiting function control.
The role of the low-pressure pressure sensor: unit low-pressure protection,
compressor/fanfrequency limiting function control, suction superheat control.
11
Pressure Switch
High-pressure switch: When the exhaust pressure of the heat pump system is
higher than the protection value of the high-voltage switch, the high-pressure
switch is disconnected, forcing the unit to stop working to avoid damage to the
unit.
Low-pressure switch: When the suction pressure of the heat pump system is
lower than the protection value of the low-pressure switch, the low-pressure
switch is disconnected, forcing the unit to stop working, and preventing the
unit from being damaged.
12
Flow switch
When the water flow of the heat pump system is cut off or the flow rate is low,
the water flow switch is disconnected and the heat pump unit stops working.
13
Auto exhaust
valve
Automatically removes air from the water system

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14
safety valve
When the pressure of the water system exceeds the design value of the safety
valve, the safety valve will automatically open to release the pressure, and
control the pressure of the water system not to exceed the specified design
value, which plays an important role in protecting personal safety and
equipment operation.
15
Expansion tank
The expansion tank plays the role of buffering pressure fluctuations and part of
the water supply in the water system.
16
DC circulating
water pump
The circulating water pump provides power for transporting the heat transfer
medium (water) in the heat pump water system, and then takes away the heat
in the water side heat exchanger through the heat transfer medium (water) to
increase or decrease the temperature of the heat transfer medium (water).
17
Outdoor fan
(DC motor +
blades)
The outdoor fan provides strong air convection during the heat exchange of the
fin heat exchanger to enhance the heat exchange effect.
18
Service valves
(high pressure
service valves,
low pressure
service valves)
When the heat pump system is in maintenance, discharge and charge
refrigerant and vacuumize through this valve.
Table 1-3
1.5.4. Heating Performance Curve
1.5.4.1. BLN-006TC1
A. Heating capacity curve
Figure 1-8

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B. COP curve
C. Heating input power curve
Figure 1-9
Figure 1-10
Note: *indicates that the ambient temperature of -20°C and the following test data are measured at the outlet water
temperature T1565°C.

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1.5.4.2. BLN-012TC1/C3
A. Heating capacity curve
B. COP curve
Figure 1-11
Figure 1-12

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C. Heating input power curve
Figure 1-13
Note: *indicates that the ambient temperature of -20°C and the following test data are measured at the outlet water
temperature T1565°C.
1.5.4.3. BLN-018TC1/C3
A. Heating capacity curve
Figure 1-14

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B. COP curve
Figure 1-15
C. Heating input power curve
Figure 1-16
Note: *indicates that the ambient temperature of -20°C and the following test data are measured at the outlet water
temperature T1565°C.

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2. Product selection and installation
2.1. Product installation instructions and special precautions
A. Heat pump cooling and heating and heating water systems should be closed systems. If antifreeze or
other refrigerants are used, please consult our company;
B. A filter must be installed before the water inlet pipe of the heat pump unit, and the mesh number of
the filter is more than 40 mesh;
C. The filter screen in the filter must be made of stainless steel to prevent impurities from entering the
system after the filter screen is corroded and causing scratches on the heat exchanger.
The heat pump uses non-toxic, flammable and explosive refrigerants. When installing, install it in an
outdoor ventilated place, away from open flames.
2.1.1. Disclaimer
1) This product must use a copper core power wire that meets the required wire diameter for
independent power supply, and the unit must have a reliable grounding wire; if the wiring does not meet the
requirements, causing the unit to not work normally, the company will not be responsible for it.
2) When cleaning the unit, it is necessary to stop the machine and cut off the power switch. If the unit is
powered on to clean, it will cause electric shock and personal injury, and the company will not be responsible
for it.
3) In winter or when the ambient temperature is below 2°C, if the machine is not used for a long time, be
sure to drain the water in the waterway and the water tank to prevent the water from freezing and expanding,
cracking the waterway and the water tank, and damaging the machine. If the anti-freeze protection of the unit
is stopped due to power failure, resulting in cracking and damage to the unit, the company will not be
responsible for it.
2.1.2. warning
1) Before installation, it should be confirmed that the grid voltage is consistent with the voltage required
by the unit, and whether the carrying capacity of the wires and sockets meets the maximum power
requirements.
2) If the stationary appliance is not equipped with a power supply cord and plug, and there is no other
device for disconnecting the power supply (its contact spacing provides full disconnection under the condition
of overvoltage class III), the fixed wiring for its connection must be configured according to the wiring rules. An
all-pole open leakage protection device with a contact opening distance greater than 3mm.
3) Please entrust a dealer or a professional to install it; the installer must have relevant professional
knowledge. If you install it by yourself, if you do it wrong, it will cause water leakage, fire, electric shock, injury,
etc.
4) The auxiliary items purchased locally must use the products designated by the company;
5) Please follow the regulations of the local electric company when connecting the power supply; confirm
whether the grounding is correct, if the grounding is not perfect, it may cause electric shock.
6) When the heat pump unit needs to be moved or reinstalled, please entrust dealers or professionals to
operate it; if the installation is not perfect, it may cause unit operation failure, electric shock, fire, injury, water
leakage and other accidents.
7) Never modify and repair by yourself. Improper repair will cause water leakage, fire, electric shock,
injury and other accidents. Be sure to entrust dealers or professionals to repair.
8) Do not remove any permanent instructions, labels or nameplates on the inside of the heat pump casing
or various panels.