mundoclima Series Aerotherm V2 “Aerotherm Heat Pump” Installation manual

AEROTHERM V2
User & Installation manual
www.mundoclima.com
SO30140 to SO30153
English
User & Installation manual
Aerotherm V2
Contents
1 Instruction to Users���������������������������������������������������������������������������������1
2 Safety Considerations�����������������������������������������������������������������������������2
3 Diagram of the Operating Principle���������������������������������������������������������4
4 Operating Principle of the Unit����������������������������������������������������������������4
5 Nomenclature������������������������������������������������������������������������������������������6
6 Installation Example �����������������������������������������������������������������������������7
7 Main Components ����������������������������������������������������������������������������������9
7.1 Indoor unit�������������������������������������������������������������������������������������������������� 9
7.2 Outdoor unit ������������������������������������������������������������������������������������������� 10
8 Installation Guideline of the Unit������������������������������������������������������������12
8.1 Instruction to installation�������������������������������������������������������������������������� 12
8.2 Installation of outdoor unit����������������������������������������������������������������������� 12
9 Installation of Indoor Unit�����������������������������������������������������������������������14
9.1 Select installation location of indoor unit ������������������������������������������������ 14
9.2 Install process of indoor unit�������������������������������������������������������������������� 14
9.3 Outline dimension of indoor unit ������������������������������������������������������������ 16
9.4 Space requirements for installation��������������������������������������������������������� 16
9.5 Precautions on installation of indoor unit������������������������������������������������� 16
9.6 Water volume and pump capacity (with pump)��������������������������������������� 17
9.7 Water volume and expansion vessel pressure���������������������������������������� 17
9.8 The method of calculating the charging pressure of expansion vessel��� 18
9.9 Selection of expansion vessel����������������������������������������������������������������� 18
10 Connection of Pipeline �����������������������������������������������������������������������19
10.1 Connection of outlet pipe for indoor & outdoor unit ������������������������������ 19
10.2 Installation of protective layer on connection pipe �������������������������������� 19
User & Installation manual
Aerotherm V2
11 Remote Air Temperature Sensor���������������������������������������������������������21
12 Thermostat������������������������������������������������������������������������������������������22
13 2-Ways Valve���������������������������������������������������������������������������������������23
14 3-Way Valve����������������������������������������������������������������������������������������23
15 Other Auxiliary Heat Sources �������������������������������������������������������������24
16 Remote ON/OFF (Gate-controller) ����������������������������������������������������������������������������������� 24
17 Filling of Refrigerant����������������������������������������������������������������������������25
18 Installation of Insulated Water Tank ����������������������������������������������������25
18.1 Installation measure������������������������������������������������������������������������������ 25
18.2 Connection of waterway system .......................������������������������������������ 26
18.3 Electric wiring work ������������������������������������������������������������������������������� 28
19 Wring Diagram�������������������������������������������������������������������������������������30
19.1 PCB outline�������������������������������������������������������������������������������������������� 30
19.2 Electric wiring work�������������������������������������������������������������������������������� 35
20 Debugging Operation of Unit ��������������������������������������������������������������43
20.1 Check before startup����������������������������������������������������������������������������� 43
20.2 Test run�������������������������������������������������������������������������������������������������� 44
21 Daily Operation and Maintenance ������������������������������������������������������45
22 Operation Range���������������������������������������������������������������������������������47
User & Installation manual
Aerotherm V2
1 Instruction to Users
Thank you for choosing our Air to water Heat Pump. Please read this manual carefully before
installation and use the unit correctly according to the following procedure.
◆◆ After receipt of the unit, check it for appearance, unit model compared with your desire and
attachments.
◆◆ For proper installation and future maintenance please read this Instruction and keep it
carefully.
◆◆ Design and installation work of the unit must be performed by authorized personnel according
to applicable laws and regulations and this Instruction.
◆◆ After installation work, the unit can not be energized unless there is not any problem in check.
◆◆ Ensure periodical clean and maintenance of the unit after normal operation of the unit for
longer life and reliable operation.
◆◆ For improvement of products, there should be not additional notice of amendment of the
contents.
◆◆ This appliance is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, or lack of experience and knowledge, unless they have been
given supervision or instruction concerning use of the appliance by a person responsible for
their safety.
◆◆ Children should be supervised to ensure that they do not play with the appliance.
Notice!
This product must not be disposed together with the domestic waste. This product has to be
disposed at an authorized place for recycling of electrical and electronic appliances.
1
User & Installation manual
Aerotherm V2
2 Safety Considerations
Please read the following contents carefully before operating.
WARNING
■■Once abnormality like burning
smell occurs, please cut off
the power supply immediately
and then contact with service
center.
If the abnormality still exists, the
unit may be damaged and
electric shock or fire may result.
■■Don't operate the unit with wet
hand.
■■Before installation,please
see if the voltage of local
place accords with that on
nameplate of unit and capacity
of power supply, power cord
or socket is suitable for input
power of this unit.
Otherwise, it may cause electric
shock.
■■S p e c i a l c i r c u i t m u s t b e
adopted for power supply to
prevent fire.
■■Be sure to pull out the power
plug and drain the indoor unit
and water tank when unit is
not in use for a long time.
■■Never damage the electric
wire or use the one which is
not specified.
Do not use octopus multipurpose
plug or mobile terminal board for
wire connection.
Otherwise, the accumulated dust
may cause overheating,fire or
freeze of water tank or coaxial
heater exchanger in winter.
Otherwise, it may cause
overheating or fire.
■■Before cleaning please cut off
the power supply.
■■The power supply must adopt
special circuit with leakage
switch and enough capacity.
■■User can not change power
cord socket without prior
consent. Wiring working must
be done by professionals.
Ensure good earthing and
don't change earthing mode
of unit.
Otherwise, it may cause electric
shock or damage.
2
User & Installation manual
■■Earthing: the unit must be
earthed reliably ! The earthing
wire should connect with
special device of buildings.
If not, please ask the qualified
personnel to install.
Furthermore, don't connect
earth wire to gas pipe, water
pipe, drainage pipe or any
other improper places which
professional does not recognize.
■■Don't step on the top of the
unit or place anything on it.
There is the danger of fall of
things or people.
■■P l e a s e n o t e w h e t h e r t h e
installation stand is firm
enough or not.
Aerotherm V2
■■N e v e r i n s e r t a n y f o r e i g n
matter into uint to avoid
damage . And never insert
your hands into the air outlet
of outdoor unit.
■■Don't attempt to repair the unit
by yourself.
Improper repair may cause electric
sh o ck o r f i re , so yo u sh o u l d
contact the service center to
repair.
■■Never block the air inlet and
outlet of unit.
■■Keep pressurized spray, gas
holder and so on away from
the unit above 1m .
It may reduce efficiency or cause
stop of the unit and even fire.
■■Unit should be installed at the
place with good ventilation to
save energy.
It may cause fire or explosion.
■■When there is not water in
water tank, never power the
unit on to run.
If damaged, it may cause fall of
the unit and injury of people.
Notice!
(1) Before installation, please check if the adopted power is accordance with that listed on
nameplate, and check the safety of power.
(2) Before using, please check and confirm if wires and water pipes are connected correctly to
avid water leakage, electric shock or fire etc.
(3) Don’t operate the unit with wet hand, and don’t allow children to operate the unit.
3
User & Installation manual
Aerotherm V2
(4) The On/off in the instruction is for the operation to on and off button of PCB for users; cut off
power means to stop supplying power to the unit.
(5) Don’t directly expose the unit under the corrosive ambient with water or dampness.
(6) Don’t operate the unit without water in water tank .The air outlet/inlet of unit can not be
blocked by other objects.
(7) The water in unit and pipeline should be discharged if the unit is not in use, to prevent the
water tank, pipe line and water pump from frost-cracking.
(8) Never press the button with sharp objects to protect manual controller. Never use other wires
instead of special communication line of the unit to protect control elements. Never clean
the manual controller with benzene, thinner or chemical cloth to avoid fading of surface and
failure of elements. Clean the unit with the cloth soaked in neutral eradicator .Slightly clean
the display screen and connecting parts to avoid fading.
(9) The power cord must be separated with the communication line.
If there is any question, please contact with local dealer, authorized service center, agencies
or our company directly.
3 Diagram of the Operating Principle
OUTDOOR UINT
INDOOR UINT
3
R1T 9
8
t
M
4
5
6
R2T
17
20
R5T 11
12
t
13
M
M
10
19
t
M
2
7
R4T
t
5
1
18
R3T
t
t
t
1 compressor
2 four-way valve
3 finned coil exchanger
4 fan motor
5 filter
6 electronic expansion valve
7 plate heat exchanger
8 pump
9 air-vent valve
14
10 electric heater
11 flow switch
12 3-way valve
13 2-way valve
14 by-pass valve
15 under-floor heating
16 radiator
17 other thermal system
18 water tank
15
R6T
16
R7T
19 expansion tank
20 safety valve
R1T plate outlet temperature sensor
R2T Liquid line temperature sensor
R3T gas line temperature sensor
R4T returning water temperature sensor
R5T leaving water temperature sensor
R6T water tank temperature sensor 1
R7T water tank temperature sensor 2
4 Operating Principle of the Unit
DC Inverter Air to Water Heat Pump is composed of outdoor unit, indoor unit and internal-fan coil
water tank. Operation functions:
(1) Cooling;
(2) Heating; (3) Water heating; (4) Cooling +water heating; (5) Heating+ water heating; (6) Emergency mode;
(7) Quick water heating; 4
User & Installation manual
Aerotherm V2
(8) Holiday mode; (9) Forced Operation Mode;
(10) Silent mode; (11) Disinfection mode;
(12) Weather-dependent Operation;
(13) Floor debugging
(14) Air removal of the water system
Cooling: in cooling mode, the refrigerant is condensed in the outdoor unit and evaporated in the
indoor unit. Via the heat exchange with water in the indoor unit, the temperature of water decrease
and it releases heat while the refrigerant absorbs heat and evaporates. With the help of wired
controller, the outflow temperature can meet the user’s requirement. Through the control of valve,
the low-temperature water in the system is connected with indoor fan coil and underground pipe, and
exchanges heat with the indoor air so that the indoor temperature decreases to the required range.
Heating: in heating mode,the refrigerant evaporates in the outdoor unit and is condensed in
the indoor unit. Via the heat exchange with water in the indoor unit, the water absorbs heat and its
temperature increase while the refrigerant releases heat and is condensed. With the help of wired
controller, the outflow temperature can meet the user’s requirement. Through the control of valve, the
high-temperature water in the system is connected with indoor fan coil and underground pipe, and
exchanges heat with the indoor air so that the indoor temperature increases to the required range.
Water heating: in water heating mode: the refrigerant evaporates in the outdoor unit and is
condensed in the indoor unit. Via the heat exchange with water in the indoor unit, the water absorbs
heat and its temperature increase while the refrigerant releases heat and is condensed. With the help
of wired controller, the outflow temperature can meet the user’s requirement. Through the control of
valve, the high-temperature water in the system is connected with the coil pipe of bearing water tank,
and exchanges heat with the water in the water tank so that the temperature of water tank increases
to the required range.
Cooling + water heating: when cooling mode exists together with the water heating mode, the
user can set the priority of these two modes based on the needs. The default priority is heat pump.
That is under the default setting, if cooling mode exists together with the water heating mode, the
heat pump gives priority to cooling. In that case, water heating can only realized with e-heater of
the water tank. Inversely, the heat pump gives priority to water heating and switches to cooling after
finishing water heating.
Heating+ water heating: when heating mode exists together with the water heating mode, the
user can set the priority of these two modes based on the needs. The default priority is heat pump.
That is under the default setting, if heating mode exists together with the water heating mode, the
heat pump gives priority to heating. In that case, water heating can only realized with e-heater of
the water tank. Inversely, the heat pump gives priority to water heating and switches to heating after
finishing water heating.
Emergency mode: this mode is only available for heating and water heating. When the outdoor
unit stops due to malfunction, enter the corresponding emergency mode; as to heating mode, after
entering the emergency mode, heating can only be realized through e-heater of the indoor unit. When
the setting outflow temperature or indoor temperature is reached, the e-heater of indoor unit will stop
running; as to water heating mode, the e-heater of indoor unit stops while the e-heater of water tank
runs. When the setting temperature or water tank is reached, the e-heater will stop running.
Quick water heating: in quick water heating mode, the unit runs according to the water heating
control of heat pump and the e-heater of water tank runs at the same time.
Forced Operation Mode: this mode is only used for refrigerant recovery and debugging for the
unit.
5
User & Installation manual
Aerotherm V2
Holiday mode: this mode is only available for heating mode. This mode is set to keep indoor
temperature or leaving water temperature in a certain range, so as to prevent water system of the unit
from freezing or protect certain indoor articles from freezing damage. When the outdoor unit stops
due to malfunction, the two e-heaters of the unit will run.
Disinfection mode: in this mode, the water heating system can be disinfected. When starting up
the disinfection function and setting corresponding time to meet the requirement of disinfection mode,
the function will start. After the setting temperature is reached, this mode will terminate.
Weather-dependent Operation: this mode is only available for space heating. In Weatherdependent mode, the setting value (remote room air temperature or leaving water temperature) is
detected and controlled automatically when the outdoor air temperature is changed.
Silent mode: Silent mode is available in cooling, heating and water heating mode. In silent mode,
the outdoor unit will reduce the running noise via automatic control.
Floor commissioning: this function is intended to preheat the floor periodically for the initial use.
Air removal of the water system: this function is intended to replenish water and remove air in
the water system to make the equipment run at the stabilized water pressure.
5 Nomenclature
CAPACITY
HEATING (kW)
COOLING 2 (kW)
CODE
DESCRIPTION
S030140
S030141
S030144
S030145
S030148
S030149
S030152
S030153
OUTDOOR UNIT AEROTHERM 8 KW 1Ph MUNDOCLIMA
INDOOR UNIT AEROTHERM 8 KW 1Ph MUNDOCLIMA
OUTDOOR UNIT AEROTHERM 12 KW 1Ph MUNDOCLIMA
INDOOR UNIT AEROTHERM 12 KW 1Ph MUNDOCLIMA
OUTDOOR UNIT AEROTHERM 16 KW 1Ph MUNDOCLIMA
INDOOR UNIT AEROTHERM 16 KW 1Ph MUNDOCLIMA
OUTDOOR UNIT AEROTHERM 16 KW 3Ph MUNDOCLIMA
INDOOR UNIT AEROTHERM 16 KW 3Ph MUNDOCLIMA
1
8,5
8,5
12,5
12,5
15,5
14,5
15,5
15,0
Note:
1
Capacities are based on the following conditions:
Indoor Water Temperature 30°C/35°C,Outdoor Air Temperature 7°C DB/6°C WB;
2
Capacities are based on the following conditions:
Indoor Water Temperature 23°C/18°C,Outdoor Air Temperature 35°C DB/24°C WB.
6
User & Installation manual
Aerotherm V2
6 Installation Example
CASE 1: Connecting Under-floor Coil for Heating and Cooling
Under- floor coil
Indoor
Outdoor
B
T
Shut off value
T
Remote room Thermostat(Field supply)
By-pass value(Field supply)
B
Low temperature line
High temperature line
Note:
① Type of thermostat and specification should be complied with installation of this manual;
② By pass valve must be installed to secure enough water flow rate,and by pass valve should be
installed at the collector;
CASE 2: Connecting Sanitary Water Tank
Under-floor coil
Outdoor
Indoor
B
1m
Sanitary water tank
T
Booster heater
Shut off value
T
3-wa y value(Field supply)
Remote room Thermostat(Field suppl y)
B
By-pass value(Fi eld supply)
High temperature line
Note: Install the 3-way valve at 1m distance from the exit of the indoor unit.
7
Low temperature line
User & Installation manual
Aerotherm V2
Note:
① In this case, three-way valve should be installed and should be complied with installation of this
manual;
② Sanitary water tank should be equipped with internal electric heater to to secure enough heat
energy in the very cold days;
CASE 3 : Connecting Sanitary Water Tank and Heat Emitters for Heating and Cooling
Under-floor coil
Outdoor
Radiator
Indoor
B
M
1m
T
Sanitary water tank
FCU 1
FCU2
Booster heater
Shut off value
T
Remote room Thermostat(Field suppl y)
M
3-wa y valu e(Field supply)
B
By-p ass value(Field supply)
2-way value(Field supply)
High tempe rature line
temperature line
Note: Install the 3-way valve at 1m distance from the exit of the indoor unit.
Two-way valve is very important to prevent dew condensation on the floor and Radiator while
cooling mode.
8
User & Installation manual
Aerotherm V2
7 Main Components
7.1 Indoor unit
SO30141
SO30145
SO30149
SO30153
External view
(8 kW)
(12 kW)
(16 kW)
(16 kW - 3 Ph)
Internal view
Safety Valve
Air Vent
Electric Heater
Plate Heat Exchanger
Expansion Tank
Control Box
Water Pump
Control Panel
Water Pressure Gage
Flow Switch
9
User & Installation manual
Aerotherm V2
7.2 Outdoor unit
SO30140 (8 kW)
External view
Internal view
Control Box
DC Fan Motor
Compressor
10
User & Installation manual
SO30144 (12 kW)
SO30148 (16 kW)
SO30152 (16 kW - 3 Ph)
Aerotherm V2
External view
Internal view
Control Box
DC Fan Motor
Compressor
11
User & Installation manual
Aerotherm V2
8 Installation Guideline of the Unit
8.1 Instruction to installation
(1) The installation of unit must be in accordance with national and local safety codes.
(2) Installation quality will directly affect the normal use of air conditioner unit. The user is
prohibited from installation by himself. Please contact your dealer after buying this machine.
Professional installation workers will provide installation and test services according to
installation manual.
(3) Do not connect to power until all installation work is completed.
8.2 Installation of outdoor unit
8.2.1 Select installation location of outdoor unit
(1) Outdoor unit must be installed on a firm and solid support.
(2) Outdoor unit shall be installed close to the indoor unit, hence to minimize the length and
bends of cooling pipe.
(3) Avoid placing the outdoor unit under window or between two constructions, hence to prevent
normal operating noise from entering the room.
(4) Air flow at inlet and outlet shall not be blocked.
(5) Install at a well-ventilated place, so that the machine can absorb and discharge sufficient air.
(6) Do not install at a place where flammable or explosive goods exist or a place subject to
severe dust, salty fog and polluted air.
8.2.2 Outline dimension of outdoor unit
SO30140 (8 kW)
980
790
360
395
650
12
User & Installation manual
Aerotherm V2
1326
1345
SO30144 (12 kW)
SO30148 (16 kW)
SO30152 (16 kW - 3 Ph)
340
378
412
900
572
Description:
Unit: inch
No.
Name
Remarks
1
Liquid-side Service Valve
3/8"
2
Gas-side Service Valve
5/8"
3
Handle
4
Air discharge Grill
8, 12, 16 kW & 16 kW (3-Ph)
Used to cover or uncover the front case
/
＞500
＞1000
8.2.2 Space requirements for installation
＞2000
＞500
＞500
＞2000
＞500
13
User & Installation manual
Aerotherm V2
8.2.3 Precautions on installation of outdoor unit
(1) When moving outdoor unit, it is necessary to adopt 2 pieces of long enough rope to hand the
unit from 4 directions. Included angle between the rope when hanging and moving must be
40°below to prevent center of the unit from moving.
(2) Adopt M12 bolts components to tighten feet and under frame when installing.
(3) Outdoor unit should be installed on concrete base that is 10cm height.
(4) Requirements on installation space dimension of unit’s bodies are shown in following
drawing.
(5) Outdoor unit must be lifted by using designated lifting hole. Take care to protect the unit
during lift. To avoid rusting, do not knock the metal parts.
9 Installation of Indoor Unit
9.1 Select installation location of indoor unit
(1) Avoid direct sunshine.
(2) Ensure the hanger rod, ceiling and building structure have sufficient strength to support the
weight of air conditioner unit.
(3) Drainage pipe is easy to connect out.
(4) Indoor and outdoor connection pipes are easy to go outdoors
(5) Do not install at a place where flammable or explosive goods exist or flammable or explosive
gas might leak.
(6) Do not install at a place subject to corrosive gas, severe dust, salty fog, smoke or heavy
moisture.
(7) Air flow at inlet and outlet air is not blocked.
9.2 Install process of indoor unit
Step1:Drilling hole on the wall in the following draw.
500
463
823
900
expansion bolt hole
unit outline
14
User & Installation manual
Aerotherm V2
Step2:Releasing screws, detach front cover from the indoor unit.
Step3: Attaching indoor unit to the wall make use of accessory expansion bolt.
Expansion bolt
Install wall
CAUTION!
① While lifting the indoor unit, at least two persons should be joined. Weight of the indoor unit is
more than 50kg.
② The indoor unit must be installed vertically to the ground and fastened securely.
③ Before commissioning, the dust-proof cap of the automatic relief valve must be loosened, other
than entirely being removed away, and it can be tightened in case that it leaks.
15
User & Installation manual
Aerotherm V2
9.3 Outline dimension of indoor unit
500
900
324
Description:
Unit: inch
No.
Name
Remarks
1
Leaving Water Pipe
1″Male BSP
2
Returning Water Pipe
1″Male BSP
3
Gas-side Pipe
5/8"
4
Liquid-side Pipe
3/8"
8, 12, 16 kW & 16 kW (3-Ph)
9.4 Space requirements for installation
250
200
800
1300
Service Space
9.5 Precautions on installation of indoor unit
(1) Indoor unit shall be vertically mounted on the wall of the room with expansion bolt.
16
User & Installation manual
Aerotherm V2
(2) Keep the indoor unit away from heat sources like heat sink and so on in the room as much as
possible.
(3) Keep the indoor unit as close as possible to outdoor unit. Level distance between connection
pipes can not exceed 30m(8.0~16KW) or 20m(6.0kw) and vertical distance can not exceed
15m(8.0~16KW) or 10m(6.0kw).
9.6 Water volume and pump capacity (with pump)
8
maximum speed
Hydraulic Head Loss(mH2O)
Hydraulic Head Loss(mH2O)
8
7
6
5
4
3
2
medium speed
7
6
5
4
3
2
1
1
0
0
0
20
40
60
80
100
Water Flow Rate(l/min)
120
20
60
40
Water Flow Rate(l/min)
0
80
100
Note:
① The water pump is three speed-adjustable(maximum/medium/minimum), In most case, we
strongly recommended to set speed as maximum;
② If the noise of the pump is not acceptable, we recommended change the default speed
to medium speed, but to secure enough flow rate, do not set water speed as “Min”, it can lead
unexpected flow rate error “EC”;
Pre-pressure in expension vessel(Bar)
9.7 Water volume and expansion vessel pressure
2.5
2.0
1.5
1.0
0.5
0.0
0
50
100
150
200
250
300
350
400
Maximum total water volume(liter)
Note:
① Expansion vessel is included which 10 liter and 1bar pre-pressure.
② Total water volume of 280 liter is default; If total water is changed because of installation
condition, the pre-pressure should be adjusted to secure proper operation. If the indoor unit is located
at the highest position, adjustment is not required;
③ Minimum total water volume is 20 liter;
④ To adjust pre-pressure, use nitrogen gas by certificated installer.
17
User & Installation manual
Aerotherm V2
9.8 The method of calculating the charging pressure of expansion vessel
The method of calculating the charging pressure of expansion vessel needed to be adjusted is as
follows.
During installation, if the volume of water system has changed, please check if the pre-set pressure
of the expansion vessel needs to be adjusted according to the following formula:
Bar(H ---the difference between installing location of indoor unit and the highest
spot of water system.)
Ensure that the volume of water system is lower than the maximum volume required in the above
figure. If it exceeds the range, the expansion vessel does not meet the installing requirement.
Installation height 1
difference
Water volume
<280L
>280L
<7 m
Adjustment is not necessary
1. Pre-set pressure needs to be adjusted
according to the above formula.
2. Check if the water volume is lower
than the maximum water volume. (with
help of the above figure)
<7 m
1. Pre-set pressure needs to be adjusted
according to the above formula.
2. Check if the water volume is lower
than the maximum water volume. (with
help of the above figure)
The expansion vessel is too small and
adjustment is not available.
1
Note:Installation height difference: the difference between installing location of indoor unit and the highest
spot of water system; if the indoor unit is located at the highest point of the installation,the installation
height difference is considered 0m;
Example 1: The indoor unit is installed 5m below the outdoor unit and the total volume of the water
system is 100L.
Referring to the above figure, it is not necessary to adjust the pressure of the expansion vessel.
Example 2: The indoor unit is installed on the highest spot of the water system and the total water
volume is 350L.
(1) As the volume of water system is higher than 280L, it is necessary to adjust the pressure of
the expansion vessel be lower.
(2) The formula of calculating pressure
Bar
(3) The maximum volume of the water system is about 410L. As the actual volume of the water
system is 350L, the expansion vessel meets the installing requirement.
(4) Adjust the pre-set pressure of the expansion vessel from 1.0Bar to 0.3Bar.
9.9 Selection of expansion vessel
Formula:
V--- Volume of expansion vessel
C--- Total water volume
P1--- Pre-set pressure of expansion vessel
P2-- The highest pressure during running of the system (that is the action pressure of safety valve.)
e---The expansion factor of water (the difference between the expansion factor of the original water
temperature and that of highest water temperature.)
18
User & Installation manual
Aerotherm V2
Water expansion factor in different temperature
Expansion factor e
Temperature(℃)
0
0.00013
4
0
10
0.00027
20
0.00177
30
0.00435
40
0.00782
45
0.0099
50
0.0121
55
0.0145
60
0.0171
65
0.0198
70
0.0227
75
0.0258
80
0.029
85
0.0324
90
0.0359
95
0.0396
100
0.0434
10 Connection of Pipeline
10.1 Connection of outlet pipe for indoor & outdoor unit
(1) Align the expansion end of copper pipe with the center of threaded joint. Tighten the flaring
nuts with your hands.
(2) Tighten the flaring nuts with torque wrench until you hear a “click”.
(3) Bend of fitting pipe shall not be too low; otherwise the fitting pipe might crack. Please use
pipe bender when bending the fitting pipe.
(4) When connecting outdoor and indoor unit, never pull the big and small joint of indoor unit with
force, so as to prevent the tubes of indoor unit from cracking and causing leakage.
(5) Connecting pipe shall be supported by a rack without transmitting its weight to other units.
10.2 Installation of protective layer on connection pipe
(1) To avoid condensate dew or water leakage on connecting pipe, the air pipe and liquid pipe
must be wrapped with heat preservation material and adhesive pipe for insulation from the
air.
19
User & Installation manual
Aerotherm V2
(2) The joints on indoor unit and outdoor unit must be wrapped with heat preservation materials
and have no clearance against the wall surface of indoor unit and outdoor unit.
(3) Wrap the pipe with tapes.
1). Use the adhesive tape to wrap the connecting pipe and cable into one bundle. To prevent
condensate water from overflowing out of the drainpipe, the drainpipe shall be separated
from connecting pipe and cable.
2). Wrap the heat preservation tape so that each ring of tape shall press half of the previous
ring.
3). Fix the wrapped pipe onto the wall with pipe clamp.
4). Do not wrap the protective tape too tightly, as this will decrease the heat insulation
performance.
5). After completing the protection work and wrapping the pipe properly, close the wall holes
with sealing materials.
No clearance
Indoor unit
Outdoor unit
Indoor unit
A
A
Outdoor unit
B
B
Outdoor unit
Indoor unit
Oil trap
A
B
20
User & Installation manual
Aerotherm V2
Pipe size
(Diameter:Φ)
gas
Liquid
Model
Length B
Elevation A
Standard
Max.
Standard
Max.
Additional
refrigerant
8 kW
5/8"
3/8"
5m
30m
0m
15m
50g/m
12 kW
16 kW
5/8"
3/8"
5m
30m
0m
15m
50g/m
5/8"
3/8"
5m
30m
0m
15m
50g/m
16 kW (3-Ph)
5/8"
3/8"
5m
30m
0m
15m
50g/m
Aditional charge (g) = (L - 10) x 50
Note:
① No additional charge of the refrigerant is need when the pipe length is less than 10 m, if the
pipe length is longer than 10m, additional charge of the refrigerant is needed according to the table.
Example:
If 16kW model is installed at a distance of 25m, (25-10)*50=750g refrigerant should be added;
② Rated capacity is based on standard pipe length and maximum allowable length is base on the
product reliability in the operation;
③ Oil trap should be installed every 5-7 meters when the location of outdoor unit is higher than
indoor unit.
11 Remote Air Temperature Sensor
Front side
Back side
Remote Air Temperature Sensor
NO
YES
1.5 Meters
NO
21
NO NO
Doors
User & Installation manual
Aerotherm V2
Remote Air Environment
Temp sensor
CN15
15K
CN1
PCB
RT9
AP1
2
Electric box
Note:
① Distance between the indoor unit and the remote air temperature senor should be less than 15
meter due to length of the connection cable of remote air temperature sensor;
② Height from floor is approximately 1.5 meter;
③ Remote air temperature sensor can not be located where the area may be hidden when door is
open;
④ Remote air temperature sensor can not be located where external thermal influence may be
applied;
⑤ Remote air temperature sensor should be installed where space heating is mainly applied;
⑥ After the Remote air temperature sensor is installed, should be set the value form “0”to“1” at the
function code 1 in the control panel, so as to select remote air temperature to the control point.
12 Thermostat
Installation of Thermostat is very similar to that of Remote air temperature sensor.
XT3
21
Cool
22
Heat
23
24
N
L
(230Vac)
Thermostat
25
Cool
26
Heat
27
N
28
L
(24Vac)
Thermostat
Fig .1
How to Wire Thermostat
(1) Uncover the front cover of the indoor unit and open the control box.
(2) Identify the power specifcation of the thermostat, if it is 230Vac, fnd terminal block XT3
as NO.21~24 or NO.23~26; Otherwise, if it is 24Vac, find terminal block XT3 as NO.25~28
or NO.27~30;
(3) If it is Heating/Cooling thermostat, please connect wire as Fig 1 ;
CAUTION!
① NEVER USE 230Vac and 24Vdc Thermostat at the same time, otherwise, it will cause shortcircuit and power cut-off by circuit breaker;
② Setting temperature by Thermostat(heating or cooling) should be chosen within the setting
temperature range of the product ;
③ For other constrains, please refer to previous page where constrains about remote air
temperature sensor
④ Do not connect external electric loads, Wire (L) and (N) should be used only for operation
Electric type thermostat.
22
User & Installation manual
Aerotherm V2
⑤ Never connect external electric loads such as valves, fan coil units, etc. If connected, PCB of
the indoor unit can be seriously damaged.
⑥ Installation of Thermostat is very similar to that of Remote air temperature sensor.
13 2-Ways Valve
2-way valve is required to control water flow while cooling operation. Role of 2-way valve is to
cut off water flow into under floor loop in cooling mode when fan coil unit is equipped for cooling
operation.
General Information
Type
Power
NO 2-wire
230V 50Hz ~AC
NC 2-wire
230V 50Hz ~AC
Operating Mode
Supported
Closing water flow
Yes
Opening water flow
Yes
Closing water flow
Yes
Opening water flow
Yes
(1) Normal Open type. When electric power is NOT supplied, the valve is open. (When electric
power is supplied, the valve is closed.)
(2) Normal Closed type. When electric power is NOT supplied, the valve is closed. (When
electric power is supplied, the valve is open.)
How to Wire 2-Way Valve:
Follow below procedures Step 1 ~ Step 2.
Step 1. Uncover front cover of the indoor unit and open the control box.
Step 2. Find terminal block and connect wire as below.
1
2
OFF ON
NC
NO
3
5
4
N OFF ON
6
N
N NC
N
NO
Reserved
2 way value
WARING!
① Normal Open type should be connected to wire (NO) and wire (N)for valve closing in cooling
mode.
② Normal Closed type should be connected to wire (NC) and wire (N)for valve closing in cooling
mode.
(NO) : Line signal (for Normal Open type) from PCB to 2-way valve
(NC) : Line signal (for Normal Closed type) from PCB to 2-way valve
(N) : Neutral signal from PCB to 2-way valve
14 3-Way Valve
3-way valve is required to operate sanitary water tank. Role of 3-way valve is flow switching
between under floor heating loop and water tank heating loop.
Note: Install the 3-way valve at 1m distance from the exit of the indoor unit.
General Information
Type
Power
SPDT
3-wire
230V 50Hz ~AC
Operating Mode
Supported
Selecting “Flow A” between “Flow A” and “Flow B”
Yes
Selecting “Flow B” between “Flow B” and “Flow A”
Yes
23
User & Installation manual
Aerotherm V2
(1) SPDT = Single Pole Double Throw. Three wires consist of Live1 (for selecting (for selecting
Flow B), and Neutral (for common).
(2) Flow A means ‘water flow from the indoor unit to under floor water circuit.’
(3) Flow B means ‘water flow from the indoor unit to sanitary water tank.’
How to Wire 3-Way Valve:
Follow below procedures Step 1 ~ Step 2.
Step 1. Uncover front cover of the indoor unit and open the control box.
Step 2. Find terminal block and connect wire as below.
7
OFF
8
ON
9
N
3 way value 1
WARING!
① 3-way valve should select water tank loop when electric power is supplied to wire (ON) and wire
(N).
② 3-way valve should select under floor loop when electric power is supplied to wire (OFF) and
wire (N).
(ON) : Line signal (Water tank heating) from PCB to 3-way valve
(OFF) : Line signal (Under floor heating) from PCB to 3-way valve
(N) : Neutral signal from PCB to 3-way valve
15 Other Auxiliary Heat Sources
Other auxiliary heat sources are allowed for the equipment and controlled in such a way that the
mainboard will output 230V when outdoor temperature is lower than the set point for startup of the
auxiliary heat source.
OFF
ON
N
16 Remote ON / OFF (Gate-controller)
If there is gate control function, pull out the leading wire 50 on terminal board(XT2) between19 and
20 or between 21 and 22, and then connect the Gate-controller .
Installation Guide follow as:
XT
20
19
XT
20
19
ON / OFF
Mundoclima does not supply this section
24
User & Installation manual
Aerotherm V2
17 Filling of Refrigerant
(1) Before shipped out from manufacturer, the outdoor unit has been filled with refrigerant.
Additional refrigerant may be filled when carrying out site connection of pipelines.
(2) Check the liquid valve and the gas valve of the outdoor unit. The valves shall be completely
shut off.
(3) Connect a vacuum pump to the liquid valve and the gas valve of the outdoor unit to remove
air from the inside of the indoor unit and the connecting pipe. Refer to the following figure:
Pressure meter
“HI”knob
“Lo”knob
Liquid valve
Vacuum pump
Connection pipe
Gas valve
(4) After confirming that there is no leakage from the system, when the compressor is not in
operation ,charge additional R410A working fluid with specified amount to the unit through
the filling opening of the liquid pipe valve of the outdoor unit.
◆◆ Be sure to charge the specified amount of refrigerant in liquid state to the liquid pipe.
Since this refrigerant is a mixed refrigerant, adding it in gas form may cause the refrigerant
composition to change, preventing normal operation.
◆◆ Before charging, check whether the refrigerant cylinder is equipped with a siphon tube or not;
With siphon tube
No siphon tube
18 Installation of Insulated Water Tank
18.1 Installation measure
The insulated water tank should be
installed and keep levelly within 5m and
vertically within 3m from the Indoor unit. It
can be installed in the room.
Standing water tank must be installed
vertically with the bottom on the ground,
never suspended. Installation place must be
firm enough and the water tank should be
fixed on the wall with bolts to avoid vibration,
as shown in the following figure. Weight
capacity of water tank during installation
should also be considered.
Water tank
Fix
with
bolts
Installed on the ground and never suspended
25
User & Installation manual
Aerotherm V2
The minimum clearance from the water tank to combustible surface must be 500mm.
There should be water pipe, hot water joint and floor drain near the water tank in favor of water
replenishment, hot water supply and drainage of water tank.
Connection of inlet/outlet waterway: Connect the safety check valve attached with the unit (→
points at insulated water tank) with the water inlet of water tank with PPR pipe according to the
following figure, sealing with unsintered tape. The other end of the safety check valve should connect
with tap water joint. Connect the hot water pipe and water outlet of water tank with PPR pipe.
Safety check valve
Tap water
Note:
For safe use of water, water outlet/inlet of water tank must connect with a certain length of PPR
pipe ,L ≥70×R2(cm, R is inside radius of the pipe). Moreover, heat preservation should be conducted
and metal pipe can not be used. For the first use, water tank must be full of water before the power is
on.
18.2 Connection of waterway system
(1) If connection between water tank and indoor unit should be through the wall, drill a holeφ70
for pass of circulating water pipe. It is unnecessary if the hole is not needed.
(2) Preparation of pipelines: Circulating water outlet/inlet pipe must be hot water pipe, PPR
pipe with nominal out diameter of dn25 and S2.5 series (wall thickness of 4.2mm) being
recommended. Cooling water inlet pipe and hot water outlet pipe of water tank should
also be hot water pipe, PPR pipe with nominal out diameter of dn20 and S2.5 series (wall
thickness of 3.4mm) being recommended. If other insulated pipes are adopted, refer to the
above dimensions for out diameter and wall thickness.
(3) Installation of circulating water inlet/outlet pipes: Connect the water inlet of unit with
circulating outlet of water tank and water outlet of unit with circulating inlet of water tank.
(4) Installation of water inlet/outlet pipes of water tank: Safety check valve (→ on the valve body
points at water tank), filter and cut-off valve must be installed for water inlet pipe according to
the installation sketch of unit. At least a cut-off valve is needed for the water outlet pipe.
(5) Installation of blow-off pipe at the bottom of water tank: Connect a piece of PPR pipe with
drainage outlet to floor drain. A cut-off valve must be installed in the middle of the drainage
pipe and at the place where it is easy to be operated by the users.
(6) After connection of all waterway pipelines, perform leakage test firstly (refer to debugging
of the unit). After that, bind up the water pipes, water temp sensor and wires with wrapping
tapes attached with the unit.
(7) Refer to Installation Sketch of Unit for details.
26
User & Installation manual
Aerotherm V2
Indoor Unit
Other Thermal sensor (less than 5 meters)
Water Tank
Hot water output
Other
Thermal
System
Temp Sensor 1
Safety check
Filter
valve
temp sensor 2
Cool Water
Inlet
Tap water
Blow-off Outlet
Power cord of booster heater
Cut-off Valve
Note:
① Distance between indoor unit and water tank should not exceed 5m levelly and 3m vertically. If
higher, please contact with us. Water tank on lower and main unit on higher side is recommended.
② Prepare the materials according to the above joints dimension. If cut-off valve is installed
outside the room, PPR pipe is recommended to avoid freeze damage.
③ Waterway pipelines can’t be installed until water heater unit is fixed. Do not let dust and other
sundries enter into pipeline system during installation of connection pipes.
④ After connection of all waterway pipelines, perform leakage test firstly. After that, perform heat
preservation of waterway system; meanwhile, pay more attention to valves and pipe joints. Ensure
enough thickness of insulated cotton. If necessary, install heating device for pipeline to prevent the
pipeline from freezing.
⑤ Hot water supplied from insulated water tank depends on pressure of water tap, so there must
be supply of tap water.
⑥ During using, the cut-off valve of cooling water inlet of water tank should be kept normally on.
27
User & Installation manual
Aerotherm V2
18.3 Electric wiring work
18.3.1 Wiring principle
General principles
◆◆ Wires, equipment and connectors supplied for use on the site must be in compliance with
provisions of regulations and engineering requirements.
◆◆ Only electricians holding qualification are allowed to perform wire connection on the site.
◆◆ Before connection work is started, the power supply must be shut off.
◆◆ Installer shall be responsible for any damage due to incorrect connection of the external circuit
of the unit.
Caution --- MUST use copper wires.
Connection of power cable to the electric cabinet of the unit
◆ Power cables should be laid out through cabling trough, conduit tube or cable channel.
◆ Power cables to be connected into the electric cabinet must be protected with rubber or plastic
to prevent scratch by edge of metal plate.
◆ Power cables close to the electric cabinet of the unit must be fixed reliably to make the power
terminal in the cabinet free from an external force.
◆ Power cable must be grounded reliably.
◆
18.4.2 Specification of power supply wire and leakage switch
Power cable specifications and Leakage switch types in the following list are recommended for
selection.
Power Supply
Leakage
Switch
Minimum Sectional
Area of Earth Wire
Minimum Sectional
Area of Power
Supply Wire
V,Ph,Hz
(A)
(mm2)
(mm2)
SO30141 (8 kW - IDU)
50
10
3×10
SO30140 (8 kW - ODU)
25
4
3×4
50
10
3×10
32
4
3×4
SO30149 (16 kW - IDU)
50
10
3×10
SO30148 (16 kW - ODU)
SO30153 (16 kW - IDU)
380-415V,3N~,50Hz
SO30152 (16 kW - ODU)
32
4
3×4
20
2.5
5×2.5
16
1.5
5×1.5
Model
SO30145 (12 kW - IDU)
SO30144 (12 kW - ODU)
220-240V,~,50Hz
Note:
① Leakage Switch is necessary for additional installation. If circuit breakers with leakage
protection are in use, action response time must be less than 0.1 second, leakage circuit must be
30mA.
② The above selected power cable diameters are determined based on assumption of distance
from the distribution cabinet to the unit less than 75m. If cables are laid out in a distance of 75m to
150m, diameter of power cable must be increased to a further grade.
③ The power supply must be of rated voltage of the unit and special electrical line for airconditioning.
④ All electrical installation shall be carried out by professional technicians in accordance with the
local laws and regulations.
⑤ Ensure safe grounding and the grounding wire shall be connected with the special grounding
equipment of the building and must be installed by professional technicians.
28
User & Installation manual
Aerotherm V2
⑥ The specifications of the breaker and power cable listed in the table above are determined
based on the maximum power (maximum amps) of the unit.
⑦ The specifications of the power cable listed in the table above are applied to the conduitguarded multi-wire copper cable (like, YJV XLPE insulated power cable) used at 40℃ and resistible to
90℃(see IEC 60364-5-52). If the working condition changes, they should be modified according to the
related national standard.
⑧ The specifications of the breaker listed in the table above are applied to the breaker with the
working temperature at 40℃. If the working condition changes, they should be modified according to
the related national standard.
29
User & Installation manual
Aerotherm V2
19 Wring Diagram
19.1 PCB outline
(1) SO30140 (8 kW - ODU)
Silk Screen
AC-L
Specification
Live wire input of power supply, red
N
Neutral wire input of power supply, white
E1
Ground wire, yellow green
L2-2
PFC blue inductive wire
L1-1
PFC brown inductive wire
L2-1
PFC yellow inductive wire
L1-2
PFC white inductive wire
U
U-phase of compressor
V
V-phase of compressor
W
W-phase of compressor
DC fan 1 pin: strong power supply; 3 pin: fan GND; 4 pin: +15V; 5 pin: control signal; 6
pin:feedback signal;
4-way valve
DC_MOTOR1
4V 4V1
HEAT
Electric heating tape
VA-1
E-heater of chassis
HPP
High pressure switch
LPP
Low pressure switch
OVC-COMP
Overload protection of compressor
T-SENSOR2
1, 2 hole: pipe temperature; 3, 4 hole: environment; 5, 6 hole: exhaust
T-SENSOR3
1 hole: +3.3V 2 hole: detection ; suction temperature sensor
CN66.CN67
Communication cable 2 pin B, 3pinA
Communication cable: 1 pin earthed, 2 pin B, 3 pin A, 4 pin+12power supply;
It can not be used for communication between outdoor unit and indoor unit;
Pipe electric expansion valve,1-4 pin: driving impulse output; 5 pin: +12V;
Signal input of pressure sensor
1 pin: GND; 2 pin: signal input; 3 pin: +5V;
CN65
FA
H-PRESS
30
User & Installation manual
Aerotherm V2
(2) SO30144 (12 kW - ODU)
SO30148 (16 kW - ODU)
Specification
Silk screen
AC-L
N
live wire input of power supply, red
Neutral line input of power supply(PFC blue inductive wire) blue
L1-1
PFC brown inductive wire
L2-1
PFC yellow inductive wire
L1-2
PFC white inductive wire
U
U-phase of compressor
V
W
V-phase of compressor
W-phase of compressor
DC fan
1 pin: strong power supply; 3 pin: fan GND; 4 pin: +15V; 5 pin:control signal; 6 pin:
feedback signal;
DC fan
1 pin: strong power supply; 3 pin: fan GND; 4 pin: +15V;5 pin: control signal; 6 pin:
feedback signal;
4-way valve
DC_MOTOR1
DC_MOTOR2
4V1
HEAT
electric heating tape
VA-1
e-heater of chassis
HPP
high pressure switch
LPP
low pressure switch
T-SENSOR2
1, 2hole: pipe temperature; 3, 4hole: environment; 5, 6 hole: exhaust;
T-SENSOR3
1 hole:+3.3V
CN66, CN67
communication cable 2 pin B, 3 pin A
communication cable 1 pin earthed, 2 pin B, 3 pin A, 4 pin+12 power supply
It can not be used for communication between outdoor unit and indoor unit.
pipe electric expansion valve
1-4 pin: driving impulse output; 5 pin: +12V;
signal input of pressure sensor
1 pin: GND; 2 pin: signal input; 3 pin: +5V;
CN65
FA
H-PRESS
2 hole: detection: suction temperature sensor
31
User & Installation manual
Aerotherm V2
(3) SO30152 (16 kW 3 Ph - ODU)
Silk screen
L1
L2
L3
N
L
U
V
W
DC_MOTOR1
DC_MOTOR2
4V1
HEAT
VA-1
HPP
LPP
T-SENSOR2
T-SENSOR3
CN66,CN67
CN65
FA
H-PRESS
Specification
live wire input of power supply
Neutral line input of power supply
Reactor red inductive wire
U-phase of compressor
V-phase of compressor
W-phase of compressor
DC fan
1 pin:strong power supply;3 pin:fan GND;4 pin:+15V;5 pin:control signal;6 pin:feedback
signal;
DC fan
1 pin:strong power supply;3 pin:fan GND;4 pin:+15V;5 pin:control signal;6 pin:feedback
signal;
4-way valve
electric heating tape
e-heater of chassis
high pressure switch
low pressure switch
1, 2hole:pipe temperature;3, 4hole:environment;5, 6hole:exhaust
1 hole:+3.3V 2 hole: detection: suction temperature sensor
communication cable 2 pin B,3 pin A
communication cable 1 pin earthed,2 pin B,3 pin A,4 pin+12 power supply
It can not be used for communication between outdoor unit and indoor unit.
pipe electric expansion valve
1-4 pin:driving impulse output;5 pin:+12V;
signal input of pressure sensor
1 pin:GND;2 pin:signal input;3 pin:+5V
32
User & Installation manual
(4) SO30141
SO30145
SO30149
SO30153
Aerotherm V2
(8 kW - IDU)
(12 kW - IDU)
(16 kW - IDU)
(16 kW 3 Ph - IDU)
HEAT2-L
RUN
AC_L N
PUMP1
2V1_OFF
HEAT1-L
PUMP2
HEAT3-L
ERR
2V2_OFF
2V1_ON
3V1_OFF
2V2_ON
3V1_ON
Other _OFF
Other _ON
LED1
LED2
LED3
CN30
T-SENSOR 1
CN31
T-SENSOR 2
T-SENSOR 3
T-SENSOR 4
T-SENSOR 5
T-SENSOR 6
TR-IN
TR-OUT1
TR-OUT2
COM-MANUAL
OVC-HEAT1
IN-SW
COM-OUT
OVC-HEAT2
Specification
Silk screen
Location
AC-L
-
live wire of power supply
N
-
Neutral wire of power supply
PUMP1
X13
live wire of indoor water pump
PUMP2
X14
live wire of solar water pump
RUN
X15
running indicator
HEAT3-L
X16
e-heater of water tank
HEAT1-L
X17
e-heater of indoor unit 1
HEAT2-L
X18
e-heater of indoor unit 2
ERR
X19
error indicator
2V1_OFF
X5
Electric magnetic 2-way valve1 is normally closed.
2V1_ON
X6
Electric magnetic 2-way valve1 is normally open.
2V2_OFF
X7
Electric magnetic 2-way valve2 is normally closed.
2V2_ON
X8
Electric magnetic 2-way valve2 is normally open.
3V1_OFF
X9
Electric magnetic 3-way valve1 is normally closed.
3V1_ON
X10
Electric magnetic 3-way valve1 is normally open.
Other _OFF
X11
Other auxiliary is normally closed.
Other _ON
X12
Other auxiliary is normally open.
33
OVC-HEAT3
DOOR -C
User & Installation manual
Aerotherm V2
T-SENSOR1
CN10
terminal of temperature sensor1
T-SENSOR2
CN11
terminal of temperature sensor2
T-SENSOR3
CN12
terminal of temperature sensor3
T-SENSOR4
CN13
terminal of temperature sensor4
T-SENSOR5
CN14
terminal of temperature sensor5
T-SENSOR6
CN15
terminal of temperature sensor6
DOOR-C
CN23
Door detection input
OVC-HEAT3
CN28
e-heater of water tank adhesion-proof protection detector
OVC-HEAT1
CN26
e-heater of indoor unit1 adhesion-proof protection detector
OVC-HEAT2
CN27
e-heater of indoor unit2 adhesion-proof protection detector
IN-SW
CN25
detection input of water flow switch
COM-MANUAL
CN6
connect the wired controller
COM-OUT
CN5
connect to outdoor unit
TR-OUT1
CN2
transformer output 1
TR-OUT2
CN3
transformer output 2
TR-IN
CN1
220V input of transformer
CN30
CN30
heavy-current interface of end controller
CN31
CN31
heavy-current interface of end controller
34
User & Installation manual
Aerotherm V2
19.2 Electric wiring work
19.2.1 Wiring principle
(1) General principles
◆◆ Wires, equipment and connectors supplied for use on the site must be in compliance with
provisions of regulations and engineering requirements.
◆◆ Only electricians holding qualification are allowed to perform wire connection on the site.
◆◆ Before connection work is started, the power supply must be shut off.
◆◆ Installer shall be responsible for any damage due to incorrect connection of the external circuit
of the unit.
◆◆ Caution --- Must use copper wires.
(2) Connection of power cable to the electric cabinet of the unit
◆◆ Power cables should be laid out through cabling trough, conduit tube or cable channel.
◆◆ Power cables to be connected into the electric cabinet must be protected with rubber or plastic
to prevent scratch by edge of metal plate.
◆◆ Power cables close to the electric cabinet of the unit must be fixed reliably to make the power
terminal in the cabinet free from an external force.
◆◆ Power cable must be grounded reliably.
19.2.2 Electric wiring design
19.2.2.1 Wiring diagram: indoor unit
SO30141 (8 kW - IDU)
SO30145 (12 kW - IDU)
SO30149 (16 kW - IDU)
15K
RT9
AP2
PE
CN12
N
EH2
54
HEAT 22
N 23
(230V) L
24
55
COOL
58
HEAT
EH1
CN11
X6 X5
47
Thermostat
3.power supply for Thermostat:If it is
230V AC,please connect Terminal
block(xt3) 21.22.23.24;If it is 24V
AC, please connect Terminal
block(xt3) 25.26.27.28.
49
20
XT3
21
48
KM3-4
Thermostat
COOL
CN10
X8 X7
45
19
50
2.The wires in the imaninal frames
are connected by the consumer.
43
46
18
Gate-controller
44
56
25
59
60
KM1
XT2
AP
XT3
KM2
XT1
PE
PE
3
PE
PE
1
KM1
17
1 18
0
KM2
19
CN13
14
OUTDOOR
UNIT AP1
HT1
35
CN6
CN2
CN1
TC
Display
board
CN3
62
Water PUMP
15
L
KM3
Terminal block
RT1
Plate heat exchanger
water-out temp sensor
RT2
Plate heat exchanger
water-in temp sensor
RT3
RT4
Liquid line temp sensor
Gas line temp sensor
Auxiliary electric heater
RT5
water-out temp sensor
RT6 Water-tank temp sensor2
RT7 Water-tank temp sensor1
Other thermal
RT8
Water- out temp sensor
16
21 0
AC contactor
Auxiliary electric
heater 1，2
51
3
HT1 XT2
Client water pump
M
SW
25
4
1,2 AC contactor
KM3
Water tank
Auxiliary electric
heater AC contactor
XT1,2,3
0
Auxiliary electric heater
KM2
RT5
13
CN5
CN66
TC
KM3
Thermostat2
(WP95A-R)
20K
11
61
HT2
EH1～2
12
Communication line
Thermostat1
(WP65A-R）
RT4
57
26
N
27
(24V)L
28
Water flow switch
20K
KM1-6
50
42
SW
HT1
KM4
KM2-6
HT2
41
RT3
KM3-6
XT2 20 19
KM4 13
14
HL1
Running
15
indicating lamp
16
Error
HL2
17
indicating lamp
38
39
20K
CN25
Client water pump
AC contactor
31
X17
Other
thermal
X18
BU
RT2
CN26
BK
Main Board
KM1
RT1
20K
CN27
RD
8
37
CN28
WH
6
36
30
X16
6
8
N
6
L1(OFF)
7
L2(ON)
8
N
9
L1(OFF)
10
L2(ON)
11
N
12
3-way
valve1
35
X13
KM1
9
5
RT6
Water-tank
NAME
AP
52
20K
AP
2
L2(ON)
34
4
X10 X9
4
KM2
2-way
valve2
33
2
3
X12 X11
4
2
63
7
RT7
50K
32
1
X14
6
50K
53
8
XT2
X15
XT2 20 19
N
L1(OFF)
5
Specification:
1.If there is gate control function,
pull out the leading wire 50 on
terminal boards between19 and 20
and then connect the
Gate-controller .
L2(ON)
X19
2-way
valve1
3
XT1
PE
L1(OFF)
65
CN23
4
8 KM3 2
1 1
6
4
N(2)
PE
CN15
2
64
3
RT8
CN14
(AC-L)
1
CN30
1
N
CODE
20K
17
L
N
1
CN1
CN31
POWER
Indoor Unit
2
4
PE
Water tank Auxiliary
electric heater
◆◆
1
N
22
14
26 XT2
RT9
Remote Air temp sensor
AP2
Main Board Only For RT9
TC
Transformer
User & Installation manual
◆◆ SO30153
Aerotherm V2
(16 kW 3 Ph - IDU)
19.2.2.2 Wiring diagram: outdoor unit
◆◆ SO30140
(8 kW - ODU)
XT1
L
N
POWER
COMMUNICATION
CORD
OUTDOOR UNIT
W1
SYMBOL
W2
W3
W7
INDOOR UNIT
E1
N
CN66
AC-L
PE
W9
W10
LP P
LPP
H-PRESS
L1
YE
L2
OVC-COMP
L2-2
L1-2
θ
RT33 50K
θ
RT 20K
T－SENSOR3
θ
W17
W15
TERMINAL BOARD
MAIN PCB
L1/L2
INDUCTANCE
COMP
COMPRESSOR
M
EH3
FAN MOTOR
BAND HEATER
4-WAY VALVE
ELECTRONIC
INFLATE VALVE
LOW PRESSURE
SWITCH
Pressure sensor
(High side)
HS
W6
W5
W4
RT31
PIPE TEMP. SENSOR
RT32
ENVIRONMENT
TEMP. SENSOR
DISCHARGE GAS
TEMP. SENSOR
SUCTON TEMP
SENSOR
RT33
RT
RD BK BU
P HP
W19
VA-1
FA
W14
EH1
AP1
EKV
WH
W18
HPP
W16
XT1
LP
W
V
U
20K
θ
RT32 15K
ELECTRIC HEATER
YV
L
BU
EKV
W13
EH3
BN
AP1
HS
RT31
L1-1
L2-1
DC_MOTOR1
AP
PE
T-SENSOR2
CN5
PE
PE
HEAT
YEGN
PE
EH2
36
HIGH PRESSURE
SWITCH
HP
Electric component position map
U V W
RD BKWH YEBU
(S)(C)(R)
COMP
M
3
YV
4V
NAME
EH1 EH2
W8 YEGN
PE
L
AP1
XT1
User & Installation manual
◆◆
Aerotherm V2
SO30144 (12 kW - ODU)
SO30148 (16 kW - ODU)
◆◆ SO30152
(16 kW 3 Ph - ODU)
3
37
User & Installation manual
Aerotherm V2
19.2.2.3 Wiring diagram: indoor and outdoor unit(including feld wiring)
◆◆
8, 12, 16 kW (1-Ph)
AC
reserved
ON / OFF
Mundoclima
does not supply
this section
Note:
1. Running indicating lamp (HL1) and Error indicating lamp (HL2) are connected or not on the basis of
the clients demand.
2. Client water pump AC contactor (KM3) is back-up Pump for the future, so it is not be connect.
el contactor de la bomba auxiliar y nunca para alimentar la bomba de agua de forma directa.
3. Leakage switch (LK) is necessary dor additional installation, please reference to 17.4.2 Specification
of Power Supply Wire and Leakage Switch.
38
User & Installation manual
◆◆
Aerotherm V2
16 kW (3-Ph)
AC
reserved
ON / OFF
Mundoclima
does not supply
this section
Note:
1. Running indicating lamp (HL1) and Error indicating lamp (HL2) are connected or not on the basis of
the clients demand.
2. Client water pump AC contactor (KM3) is back-up Pump for the future, so it is not be connect.
el contactor de la bomba auxiliar y nunca para alimentar la bomba de agua de forma directa.
3. Leakage switch (LK) is necessary dor additional installation, please reference to 17.4.2 Specification
of Power Supply Wire and Leakage Switch.
39
User & Installation manual
Aerotherm V2
19.2.2.4 Terminal board information
◆
8, 12, 16 kW (1-Ph)
ƹ Terminal
21
board X T3:
22
24
23
25
Thermostat
230Vac
ƹ Terminal
26
27
28
Thermostat
24Vac
board X T1:
power supply for Water
tank electric heater
12
L
N
1
345678
91
01
11
21
31
41
51
61
71
81
92
0
N(2)
Connecting external electric
power supply for Indoor Unit
ƹ Terminal
Connection for
Indicating lihgt
board X T2:
1
2 way value
4
5
reserved
6
7
8
9 10
11 12
13 14 15 16
Connection for Client
water's AC contactor
3 way value
40
Remote O N / O FF
17 18 19 20
Connection for
Accident lihgt
User & Installation manual
◆
Aerotherm V2
16 kW (3-Ph)
ƹ Terminal
board X T2:
1
4
2 way value
ƹ Terminal
L1
Connection for
Indicating lihgt
5
6
reserved
7
8
9 10
11 12
13 14
17 18 19
15 16
Connection for Client
water's AC contactor
3 way value
Remote O N / O FF
Connection for
Accident lihgt
board X T1:
L2
L3
N
Connecting external electric
power supply for Indoor unit
ƹ Terminal
21
board X T3:
22
23
24
Thermostat 230Vac
25
26
27
28
Thermostat 24Vac
41
29
30
31
power supply for
water tank eletric
heater
20
User & Installation manual
19.2.2.5 Control wiring design
Aerotherm V2
Diplay board
CN4 CN5
4
CN6
Indoor Unit
Eletric box
AP
3
CN66 AP1 Outdoor Unit
Main board Eletric box
CN5
Main board
Installation Instruction :
(1) Wired controller connects to terminal CN6 on mainboard of indoor unit by 4-core communication line.
(2) The indoor unit connects to outdoor unit by 3-core communication line. Wiring terminal of indoor unit is
CN5 and that of the outdoor unit is CN66.
42
User & Installation manual
Aerotherm V2
20 Debugging Operation of Unit
20.1 Check before startup
For safety of users and unit, the unit must be started up for check before debugging. The
procedures are as below:
The following items shall be performed by qualified repair persons.
Confirm together with the sales engineer, dealer, installing contractor and customers forthe following items
having been finished or to be finished.
No.
1
2
3
No.
1
2
Confirmation of Installation
If the contents of Application for Installation of this Unit by Installer are real. If not, debugging
will be refused.
If there is written notice in which amend project is shown to the installer in
respect of unqualified installation.
If Application for Installation of unit by Installer and Debugging list are filed
together.
Pre-check
If appearance of the unit and internal pipeline system is ok during conveying, carrying or
installation.
Check the accessories attached with the unit for quantity, package and so on.
√
□
□
□
√
□
□
Make sure there is drawings in terms of electricity, control, design of pipeline and so on.
Check if installation of the unit is stale enough and there is enough space for operation and
repair.
Completely test refrigerant pressure of each unit and perform leakage detection of the unit.
□
Check if water tank is installed stably and its bearing is safe upon it is full.
Check if heat insulating measures for the water tank, outlet/inlet pipes and water replenishing
pipe are proper.
Check if nilometer of water tank, water temperature indicator, controller, manometer, pressure
relief valve and automatic discharge valve etc. are installed and operate properly.
Check if power supply accords with the nameplate and model of power cord conform to
applicable requirements.
□
10
Check if power supply and control wiring is connect properly according to wiring diagram,
earthing is safe and each terminal is stable.
□
11
Check if connection pipe, water pump, manometer, thermometer, valve etc. are installed
properly.
□
12
Check if each valve in the system is open or closed according to requirements.
□
13
Confirm that the customers and inspection personnel of Part A are at site.
□
14
Installation Check-up Table is completed and ask installing contractor’s signature for consent.
□
3
4
5
6
7
8
9
□
□
□
□
□
Attention: If the items with ×, please notify the contractor .The above items are recommended.
Confirmed Items after pre-checking
General Evaluation: Debugging □
Amendment □
Judge the following items (if there is not any filling, qualification will be regarded.)
a: Power supply and electric control system
b: Loading calculation
c: Heating problems of Unit
d: Noise problem
e: Pipeline problem
f: Others
Normal debugging work can’t be performed unless all installation items are qualified. If problem,
it must be solved firstly. All costs will be installer’s responsibility for delay of debugging and redebugging incurred by any problem which is not solved immediately.
Submit schedule of amending reports to installer.
If provide written amending report to installer which should be signed after communication.
Yes ( )
No ( )
43
User & Installation manual
Aerotherm V2
20.2 Test run
Test run is testing whether the unit can run normally via preoperation. If the unit can not run
normally, find and solve the engineering or unit problem until the test run is satisfactory. All inspection
must meet the requirements before performing the test run. Test run should follow the content and
steps of the table below:
The following procedure should be executed by experience and qualified maintenance man.
No.
Start up the pretest procedure
Notice: before test, ensure that all power must be cut off including far- end power switch. Otherwise, it may
cause casualty.
1
Ensure that the compressor of the unit is preheated for 8h.
Caution: heat the lubricating oil at least 8h in advance,
to prevent the refrigerant from mixing with the lubricating oil, which may cause damage to the compressor
when starting up the unit.
Check whether the oil temperature of the compressor is obviously higher than the outdoor ambient
temperature.
Caution: if the oil temperature of the compressor is obviously higher than the outdoor ambient
temperature, it means that the heating tape of compressor is damaged.In that case, the compressor will be
damaged easily. Therefore, repair the heating tape Before using the unit.
Check whether the phase sequence of main power supply is correct. If not, correct the phase
3
sequence according to specification.
Recheck the phase sequence before start-up to avoid inversion of the compressor which may damage the
unit.
Apply universal electric meter to measure the insulation resistance between each
4
outdoor phase and earth as well as between phases.
Caution: defective earthing may cause electric shock.
2
No.
1
Ready to start
Cut off all of temporary power supply, resume all the insurance and check the
electricity for the last time.
Check the power supply and voltage of the control circuit; _____V must be ±10%
within the range of rated operating power.
No.
1
Start up the unit
Check all the conditions needed to start up the unit: oil temperature, mode,
required load ect.
Start up the unit, and observe the operation of compressor, electric expanding
valve, fan motor and water pump ect.
2
Note: the unit will be damaged under abnormal running state.
Do not operate the unit in states of high pressure and high current.
affixed information:
Items for
acceptance
after debugging
Estimation or suggestion on the general running situation: good, modify
Identify the potential problem( no writing means the installation and debugging are in
accordance with the requirements.)
a. problem of power supply and electric control system:
b. problem of load calculation:
c. outdoor refrigerant system:
d. noise problem:
e. problem of indoor and piping system:
h. other problems:
During operation, it is needed to charge for the maintenance due to non-quality problems
such as incorrect installation and maintenance.
Acceptance situation:
Is the user trained according to the specification? Please sign. Yes( ) No( )
44
User & Installation manual
Aerotherm V2
21 Daily Operation and Maintenance
In order to avoid damage of unit, all protecting devices in the unit had been set before outgoing, so
the user can never adjust or remove them.
For the first startup of the unit or next startup of unit after long-period stop (above 1 day)by cutting
off the power, please electrify the unit in advance to preheat the unit for more than 8hr
Never put sundries on the unit and accessories. Keep dry, clean and ventilated around the unit.
Remove the dust accumulated on the condenser fin timely to ensure performance of unit and to avoid
stop of unit for protection.
In order to avoid protection or damage of unit caused by blockage of water system, clean the filter
in water system periodically and frequently check water replenishing device.
In order to ensure anti-freezing protection, never cut off the power if ambient temp. is below zero in
winter.
In order to avoid frost crack of the unit, water in the unit and pipeline system not used for a long
period should be drained. In addition, open the end cap of water tank for drainage.
Never frequently make the unit on/off and close manual valve of water system during operation of
unit by users.
Ensure frequently check the working condition of each part to see if there is oil stain at pipeline
joint and charge valve to avoid leakage of refrigerant.
If malfunction of the unit is out of control of users, please timely contact with authorized service
center of company.
Note:
The water pressure gage is installed in returning water line in the indoor unit, Please adjust the
hydraulics system pressure according to next item:
① If the pressure is less than 0.5 bar, please recharge the water immediately;
② When recharging, the hydraulics system pressure should be not more than 2.5Bar.
Troubleshooting
Malfunctions
Reasons
Compressor does
not start up
①
②
③
④
High noise of fan
①
②
③
Troubleshooting
①
②
③
④
②
Power supply has problem.
Connection wire is loose.
Malfunction of mainboard.
Malfunction of compressor.
Fixing bolt of fan is loose.
Fan blade touches shell or grill.
Operation of fan is unreliable.
Liquid slugging happens when liquid
refrigerant enters into compressor.
Internal parts in compressor are broken.
Water pump does
not run or runs
abnormally
①
②
③
Malfunction of power supply or terminal.
Malfunction of relay.
There is air in water pipe.
①
②
③
Compressor starts or
stops frequently
①
②
③
Poor or excess refrigerant.
Poor circulation of water system.
Low load.
The unit does not
heat although
compressor is
running
①
②
Leakage of refrigerant.
Malfunction of compressor.
Poor efficiency of hot
water heating
①
②
③
④
Poor heat insulation of water system.
Poor heat exchange of evaporator.
Poor refrigerant of unit.
Blockage of heat exchanger at water side.
High noise of
compressor
①
①
②
③
①
②
Phase sequence is reverse.
Check out and re-fix.
Find out the reasons and repair.
Replace compressor.
Re-fix fixing bolt of fan.
Find out the reasons and adjust.
Replace fan.
Check if expansion valve is failure and
temp. sensor is loose .If that, repair it.
Replace compressor.
Find out the reasons and repair.
Replace relay.
Evacuate.
① Discharge or add part of refrigerant.
② Water system is blocked or there is air in
it.Check water pump, valve and pipeline.
Clean water filter or evacuate.
③ Adjust the load or add accumulating
devices.
①
Repair by leakage detection and add
refrigerant.
② Replace compressor.
①
45
Enhance heat insulation efficiency of the
system.
② Check if air in or out of unit is normal and
clean evaporator of the unit.
③ Check if refrigerant of unit leaks.
④ Clean or replace heat exchanger.
User & Installation manual
Aerotherm V2
The table of error code
Full Name
Ambient temperature sensor error
Condenser temperature sensor error
Discharge temperature sensor error
Suction temperature sensor error
Outdoor fan error
Compressor internal overload protection
High pressure protection
Low pressure protection
High discharge protection
Incorrect capacity DIP switch setting
Communication error between indoor and outdoor unit
High pressure sensor error
Heat exchanger-leaving water temperature sensor error
Auxiliary heater-leaving water temperature sensor error
Refrigerant liquid line temperature sensor error
Heat exchanger-entering water temperature sensor error
Water tank water temperature sensor 1 error
Water tank water temperature sensor 2 error
Refrigerant gas line temperature sensor error
Solar heater-leaving water temperature sensor error
Room temperature sensor error
Water flow swich protection
Welding protection of the auxiliary heater 1
Welding protection of the auxiliary heater 2
Welding protection of the water tank heater
Under-voltage DC bus or voltage drop error
Over-voltage DC bus
AC current protection (input side)
IPM defective
PFC defective
Start failure
Phase loss
Drive module resetting
Compressor over-current
Overspeed
Sensing circuit error or current sensor error
desynchronizing
Compressor stalling
Communication error
Radiator or IPM or PFC module overtemperature
Radiator or IPM or PFC module temperature sensor error
Charging circuit error
Incorrect AC voltage input
Drive board temperature sensor error
AC contactor protection or input zero crossing error
Temperature drift protection
Current sensor connection protection (current sensor not
connected to phase U/V)
Communication error to the outdoor unit
Communication error to the indoor unit
Communication error to the drive
Overload protection of compresor or driver error
Indoor anti-frozen protection
Pull-out of the remote ON/OFF (gate controller)
46
Displayed Name
Ambient sensor
Cond. sensor
Disch. sensor
Suction sensor
Outdoor fan
Comp. overload
High pressure
Low pressure
Hi-discharge
Capacity DIP
ODU-IDU Com.
Pressure sens.
Temp-HELW
Temp-AHLW
Temp-RLL
Temp-HEEW
Tank sens. 1
Tank sens. 2
Temp-RGL
Temp-SHLW
Sensor-RT
WS-protection
Auxi. heater 1
Auxi. heater 2
Auxi. -WTH
DC under-vol.
DC over-vol.
AC curr. pro.
IPM defective
FPC defective
Start failure
Phase loss
Driver reset
Com. over-curr.
Overspeed
Current sen.
Desynchronize
Comp. stalling
drive-main com.
Overtemp.-mod.
T-mod. sensor
Charge circuit
AC voltage
Temp-driver
AC contactor
Temp. drift
Error Code
F4
F6
F7
F5
EF
H3
E1
E3
E4
c5
E6
FC
F9
dH
F1
F8
FE
FL
F3
dF
F0
EC
EH
EH
EH
PL
PH
PA
H5
HC
LC
LD
P0
P5
LF
PC
H7
LE
P6
P8
P7
PU
PP
PF
P9
PE
Sensor con.
PD
ODU Com.
IDU Com.
Driver Com.
E6
E6
E6
E5
E2
dU
User & Installation manual
Aerotherm V2
22 Operation Range
Mode
Range of Outdoor Temperature( C)
Heating
-20~35
Cooling
10~48
Water heating
-20~45
47
ASK FOR MORE INFORMATION
Phone: (+34) 93 446 27 80
eMail: [email protected]
TECHNICAL ASSISTANCE
Phone: (+34) 93 652 53 57
www.mundoclima.com