Argo AQUA UNIT AUAH User manual

EN
IT
AQUA UNIT
Indoor unit - Inverter split air to water heat pump
Unità interna - Pompa di calore split Inverter aria / acqua
Unité intérieure - Pompe à chaleur split Inverter air / eau
37.4255.173.04 07/2019
INSTALLATION
INSTRUCTIONS
MANUALE
D’INSTALLAZIONE
NOTICE
D’INSTALLATION
AUAH
AUBH
AUCH
AUDH
FR

EN
22
CONTENTS
1 - Generalities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
2 - Presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
3 - Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
4 - Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
5 - System wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
6 - System layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
7 - Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
8 - Maintenance instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
9 - Electrical diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
10 - Auto-diagnosis table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
REGULATION (EU) No. 517/2014 - F-GAS
The unit contains R410A, a fluorinated greenhouse gas
with a global warming potential (GWP) of 2087.50.
Do not release R410A into the atmosphere.
Power Supply:
220 - 240 V ~ 50 Hz
IMPORTANT!
Please read before installation
Installation of these products must be carried out by qualified personnel in accordance with European regulations
303/2008 and 517/2014.
This system meets strict safety and operating standards.
For the installer or service person, it is important to install or service the system so that it operates safely and efficiently.
To begin the warranty, the product must be started by a service center Argoclima S.p.A.
Recommendations
• The personnel responsible for receiving the unit must conduct a visual inspection in order to identify all damage
to which the unit may have been subjected during transport: refrigerating circuit, electrical cabinet, chassis and
cabinet.
• During installation, troubleshooting and maintenance operations, never use the pipes as a step: under the stress,
the pipes may break and the refrigerant may cause serious burns.
For safe installation and trouble-free operation, you must:
• Carefully read this instruction booklet before beginning.
• Follow each installation or repair step exactly as shown.
• Observe all local, state and national electrical (and safety) codes.
• Pay close attention to all warning and caution notices given in this manual.
• Supply the unit with a dedicated electrical line.
• Make install the unit by qualified personnel, in possession of license F-GAS.
• Before installation, check that the voltage of the electric supply in your home or office is the same as the voltage
shown on the nameplate.
This symbol refers to a hazard or unsafe practice which can result in severe personal injury or death.
This symbol refers to a hazard or unsafe practice which can result in personal injury or product or property damage.
WARNING
CAUTION

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33
If necessary, get help
These instructions are all you need for most installation sites and maintenance conditions.
If you require help for a special problem, contact our sale/service outlet or your certified dealer for additional
instructions.
In case of improper installation
The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure
to follow the instructions in this document.
SPECIAL PRECAUTIONS
• During installation, connect before the hydraulic and refrigerant system and then the wiring one; proceed in the
reverse order when removing the unit.
ELECTRICAL SHOCK CAN CAUSE SEVERE PERSONAL INJURY OR DEATH.
ONLY QUALIFIED, EXPERIENCED ELECTRICIANS SHOULD ATTEMPT TO WIRE THIS SYSTEM.
• Do not supply power to the unit until all wiring and tubing are completed or reconnected and checked, to ensure
the grounding.
• Highly dangerous electrical voltages are used in this system. Carefully refer to the wiring diagram and these
instructions when wiring.
Improper connections and inadequate grounding can cause accidental injury and death.
• Ground the unit following local electrical codes.
• The Yellow/Green wire cannot be used for any connection different from the ground connection.
• Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fire hazard.
• Do not allow wiring to touch the refrigerant tubing.
• Do not use multicore cable when wiring the power supply and control lines. Use separate cables for each type of
line.
When transporting
Be careful when picking up and moving the unit. Get a partner to help, and bend your knees when lifting to reduce
strain on your back. Sharp edges or thin aluminium fins on the unit can cut your fingers.
When installing
... In a room
Properly insulate any tubing run inside a room to prevent “sweating”, which can cause dripping and water damage
to walls and floors.
... In a wall or floor
Make sure they are strong enough to hold the unit weight. It may be necessary to build a strong wooden or metal
frame to provide added support.
... In moist or uneven locations
Use a raised concrete base to provide a solid level foundation for the unit.
This prevents damage and abnormal vibrations.
... In area with strong winds
Securely anchor the unit down with bolts and a metal frame. Provide a suitable air baffle.
... In a snowy area
Install the unit on a raised platform that is higher than drifting snow. Provide snow vents.
When connecting refrigerant tubing of Emix / Emix-Tank
• Use the flare method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces of the flare and union tubes before connecting them; screw
by hand and then tighten the nut with a torque wrench for a leak-free connection.
• Check carefully for leaks before starting.
• Insulate the tubes with foamed polyethylene (min. thickness 8mm).
When connecting hydraulic tubing
• Keep all tubing runs as short as possible.
• Insulate the tubing.
• Check carefully for leaks before starting.
When servicing
• Turn the power OFF at the main power board before opening the unit to check or repair electrical parts and wiring.
• Keep your fingers and clothing away from any moving parts.
• Clean up the site after the work, remembering to check that no metal scraps or bits of wiring have been left inside
the unit being serviced.
• Ventilate the room during the installation or testing the refrigeration system; make sure that, after the installation,
no gas leaks are present, because this could produce toxic gas and dangerous if in contact with flames or heat-
sources.
When wiring
WARNING

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44
OPERATING CONDITIONS
1 - GENERALITIES
Water system pressure
Minimum: 1,5 bar
Maximum: 2,0 bar
Water temperature
The maximum allowable water inlet temperature of the heat pump is 75 ° C
Water volume of the system (to be compulsorily checked)
Minimum: AUAH: 40 litres (*)
AUBH: 40 litres (*)
AUCH: 80 litres (*)
AUDH: 80 litres (*)
Maximum:dimension the expansion vessel according to the maximum volume of water, the maximum
water temperature and the plant static height.
(*) If the water volume of the system (plant and product) is below the minimum, a buffer tank must be installed.
For the minimum water volume, consider the volume continuously connected to
the heat pump (don’t consider the volumes which could be isolated by automatic valves).
Operating limits Maximum temperature of water outlet
Outdoor ambient temperature
Heating: -20°C / +35°C
Cooling: +10°C / +47°C
58
-20 5
-10
55
35
10
50
Water outlet temperature (°C)
Outdoor air temperature (°C)

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55
2 - PRESENTATION
ACCESSORIES SUPPLIED WITH THE UNIT
OUTSIDE TEMPERATURE SENSOR
2.1 - DESCRIPTION OF THE PARTS
1 - Plate type heat exchanger.
2 - Electric heater: 2 kW
3 - Air vent valve.
5 - Automatic reset safety thermostat.
6 - Manual reset safety thermostat.
7 - Circulator pump.
8 - Expansion vessel.
9 - Refrigerant pressure transducer.
10 - Safety valve.
11 - Water ow sensor (owmeter).
12 - Water inlet connection.
13 - Water outlet connection.
14 - Connection for drainage of the water system.
15 - Safety valve drain connection.
16 - Flare gas connector.
17 - Flare liquid connector.
18 - Electrical cable passage.
19 - Front panel.
20 - Control panel.
21 - Electrical box.
22 - PCB.
23 - Terminal blocks
Materials:
- Copper piping.
- Stainless steel water heat exchanger.
- Painted sheet metal cabinet.
8
12
13
15
16
17
18
19
20
39 10
5
61
2
7
11
14
18
21
22
23
FRONT VIEWS
REAR VIEW

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66
2.2 - DIMENSIONS AND WEIGHT
AUAH AUBH AUCH AUDH
1Water inlet connection 3/4” M 3/4” M 3/4” M 3/4” M
2Water outlet connection 3/4” M 3/4” M 3/4” M 3/4” M
3Safety valve connection and drainage ø 18mm ø 18mm ø 18mm ø 18mm
4Gas refrigerant connection 1/2” 1/2” 1/2” 5/8”
5Liquid refrigerant connection 1/4” 1/4” 1/4” 3/8”
6Holes for electric cables ----
Model Weight (kg)
AUAH 33.5
AUBH 34
AUCH 35
AUDH 36
488
620 383
420
28741 40 93
495
63 161 35 102 69 75 53 62
100
110
14427641
12
4
5
3
6
HOLE Ø8 FOR
WALL FIXING
REAR VIEW
FRONT VIEW SIDE VIEW

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77
• Deoxidized annealed copper tube for refrigerant tubing connecting Emix; it has to be insulated with foamed
polyethylene (min. thickness 8mm).
• Anti-freeze oil for flare connections (about 30g.)
• Electric wire: use insulated copper wires of size and length as shown at paragraph “SYSTEM WIRING DIAGRAMS” .
• Tubes for water.
2.3 - ADDITIONAL MATERIAL REQUIRED FOR INSTALLATION (NOT SUPPLIED)
1.Standard screwdriver
2.Phillips head screwdriver
3.Knife or wire stripper
4.Tape measure
5.Level
6.Sabre saw or key hole saw
7.Hacksaw
8. Core bits ø 5
19.Hammer
10.Drill
11.Tube cutter
12.Tube flaring tool
13.Torque wrench
14.Adjustable wrench
15.Reamer (for
reburring)
16.Hex. key
Tools required for installation (not supplied)
3 - INSTALLAZIONE
3.1 - INSTALLATION LOCATION
The unit must be installed in a closed location.
AVOID
• Proximity to heat sources, exhaust fans.
• Proximity to combustible materials.
• Direct sunlight.
• Locations where the unit could be splashed with
water or affected by dampness or humidity (i.e. in
laundries).
• Unsteady locations that will cause noise or possible
waterleakage.
• To make holes in areas where electrical wiring or
conduits are located.
IMPORTANT NOTES
• Select a sufficiently strong location/wall to support
the weight of the unit.
• Leave a minimum operation and maintenance area
around the unit.(See figure).
60 cm 60 cm
20 cm

EN
8
INSTALLATION ON EMIX TANK V2
• Place the unit on Emix Tank V2, aligning the front and side panels.
• Maximum height with 200l: 1948mm.
• Maximum height with 300l: 2363mm.
3.2 - HOW TO INSTALL THE UNIT
IINSTALLATION TO THE WALL OR ON THE FLOOR
• Remove the front panel from the unit, pulling towards you (fig. 1).
NOTE:
The panel is connected with two wires to the electrical junction
box. Be careful not to pull the wires and, in case, disconnect them.
• Make 4 holes in the wall, using the supplied template (see fig. 2).
Use pins and screws (not supplied) that are appropriate to the
weight of the unit and the type of wall.
• Hook and fix the unit.
• Replace the front panel, reconnecting the wires that you have
eventually disconnected.
Fig. 1
4 x ø 8
495 mm
420 mm
461 mm
Fig. 2
ø 8
ø 14
ø 8
ø 14
ø 8
ø 8
495
420
REAR VIEW
FRONT VIEW

EN
9
4 - CONNECTIONS
AUAH AUBH AUCH AUDH
Connection to the refrigerant
circuit of outdoor unit *Circuit A Circuit A Circuit A Circuit A **
ø Liquid tube (narrow) 1/4”
(6,35 mm)
1/4”
(6,35 mm)
1/4”
(6,35 mm)
3/8”
(9,52 mm)
ø Gas tube (large) 1/2”
(12,7 mm)
1/2”
(12,7 mm)
1/2”
(12,7 mm)
5/8”
(15,88 mm)
Minimum pipe length 3 m 3 m 3 m 3 m
Maximum pipe length without
additional refrigerant
SEE INSTALLATION INSTRUCTIONS
OF OUTDOOR UNIT
Maximum pipe length with
additional refrigerant
Additional charge per meter
NOTES
• For the connecting pipes, use the flare nuts provided with the unit or nuts intended for the R 410 A.
• Minimum pipe thickness: 1mm.
• Utilise, if necessary, the adapters supplied with the outdoor unit.
• Connect the units with the connecting tubes in accordance with the above table.
*IMPORTANT!
Connect
EXCLUSIVELY
to the circuit «A» of the
outdoor unit.
4.1 - REFRIGERANT CONNECTION
Outdoor unit
indoor unit
Gas line
Liquid line
** For AUDH
Check in particular the
outdoor unit installation
instructions.

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10
4.2 - HYDRAULIC CONNECTION
4.2.1 - WATER INLET AND OUTLET CONNECTION
• Connect the water pipes to the corresponding connections (for diameters and position, see page 6).
• It is mandatory to install a hydraulic lter (1) (not supplied) on the water intake. Connect it using two
on-off valves (2) (not supplied) for cleaning purposes.
• It is recommended to install anti-vibration exible hoses (not supplied), for the hydraulic connections.
4.2.2 - WATER FILLING / DRAINAGE CONNECTION
• Provide at the lowest point of the hydraulic circuit, outside the unit, a circuit ll / discharge tting.
• To drain the hydraulic circuit, rst drain the water from the outside tting, then drain the residual water
into the unit through the drain plug (3). Place a pan under the plug or use a tube to avoid dropping
water on the oor.
4.2.2 - SAFETY VALVE CONNECTION
• The safety valve opens if the pressure of the hydraulic system exceeds 3 bar.
• A exible hose (4) (not supplied) can be connected to the coupling insert (coupling outside ø: 18 mm)
of the valve.
1
24
3
REAR VIEW
FRONT VIEW

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11
4.3 - ELECTRICAL CONNECTION
• Remove the front panel (fig.1).
NOTE:
The panel is connected with two wires to the electrical junction box. Be careful not to pull the wires and, in
case, disconnect them.
• Remove the cover of electrical junction box to access the terminal blocks (fig. 2).
• Let the electrical wires pass rst in the wire grommets on the back of the unit and then in the wire glands
placed over the electrical panel (fig. 3).
• Connect the power line and interconnecting wires to the unit and secure them with the wire glands.
Fig. 2
Fig. 1
Fig. 3
TERMINAL BLOCKS
REAR VIEW
FRONT VIEW
FRONT VIEW
LN
1 2 3 4 5 6 7 8 C1 C2 C3 C4 C3 C3C4 C4 9 101112 13 1415 16 17 1819 2021
DHW VALVE EXT.BHU ALARM C OUTDOOR UNIT DATALOGGER 1 MODBUS GATEWAY DATALOGGER 2 2 ZONE CONTROL REMOTE DISPLAY ON/OFF H/C DHW ECO OAT 0-10V

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4 - SYSTEM WIRING DIAGRAMS
LENGTH, SIZE WIRES AND DELAYED FUSE
Supply power wire A:
Multipolar electric wire; the size of the suggested electric wire is shown on table. The wire must be Mod.
H07RN-F (according to CEI 20-19 CENELEC HD 22). Make sure the length of the conductors between the fixing
point and the terminals allows the straining of the conductors L, N before that of the grounding.
Connecting wire B (SHIELDED):
Bipolar electric shielded wire; the size of the suggested electric wire is shown on table. The wires have not to
be lighter than Mod. H05VVC4V5-K (according to CEI 20-20 CENELEC HD21).
Connecting wire C / D:
Multipolar electric wire; the size of the suggested electric wire is shown on table. The wires have not to be
lighter than Mod. H07RN-F (wire C) / H05RN-F (wire D), according to CEI 20-19 CENELEC HD22).
DELAYED FUSE Main switch for disconnection from
the supply line must have a contact
separation in all poles that provides
full disconnection under category III
overvoltage conditions.
220 - 240 V ~ 50 Hz
WIRING DIAGRAMS’ SYMBOLS
ABCD
S ( mm2) S ( mm2) S ( mm2) S ( mm2)
2,5 0,75 0,75 0,75 10 A
A
EXT.
OUTDOOR UNIT
DATALOGGER 1
MODBUS GATEWAY
DATALOGGER 2
SW3
B
C3
C3
C3
C4
C4
C4
OUTDOOR UNIT
NOTES
• Do not connect the power supply of Aqua Unit on the terminal block of outdoor unit.
• Connect the power supply under the same circuit breaker of outdoor unit.
• Check out maximum power input on circuit breaker (outdoor unit + Aqua Unit).
• Use the ON/OFF button on the control panel to switch off the unit.
• Aqua Unit must always be powered on, to allow internal protections (eg. anti-freeze) to be activated.
AQUA UNIT
5.1 - OUTDOOR UNIT CONNECTION
To dimension the
outdoor unit fuses,
see the outdoor unit
installation manual.

EN
13
• DHW VALVE
• EXTERNAL BACKUP HEATING
• ALARM / DEFROST
(1): DHW valve closing command. Phase output 230 Vac / 20 W max.
(2): Neutral
(3): DHW valve opening command. Phase output 230 Vac / 20 W max.
(4): Neutral
(5): Backup heating activation command. Phase output 230 Vac / 20 W max.
It is necessary to insert an external backup heating pilot relay (boiler, resistance, etc.).
(6): Neutral
(7): Alarm / defrost signaling. Phase output 230 Vac / 20 W max.
EXT.
5.2 - FULL CONFIGURATION
C
B
OUTDOOR UNIT
DATALOGGER 1
MODBUS GATEWAY
DATALOGGER 2
D
MODBUS
DATALOGGER 1
EXT.
SW3
A
B
OUTDOOR UNIT
C3
C3
C3
C4
C4
C4
C3
C4
C3
C4
C3
C4
5.3 - CONNECTIONS DETAILS

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• THERMOSTAT H/C
• If switch SW3 (see page 30) of main board is set on 12 Vdc, connect thermostat dry contact between
poles (11) and (12):
(11): Low voltage input
(12): 12 Vdc
Closed contact: cooling mode selected
Open contact: heating mode selected
• If switch SW3 (see page 30) of main board is set on 24 Vac, connect neutral of power supply 24 Vac to
terminal (8) and output 24 Vac of thermostat to terminal (11):
(8): Neutral 24 Vac
(11): Phase input 24 Vac
(12): Not connected
Powered input: cooling mode selected
Not powered input: heating mode selected
• THERMOSTAT ON/OFF
• If switch SW3 (see page 30) of main board is set on 12 Vdc, connect thermostat dry contact between
poles (9) and (10):
(9): Low voltage input
(10): 12 Vdc
Closed contact: heating / cooling request
Open contact: unit in standby
• If switch SW3 (see page 30) of main board is set on 24 Vac, connect neutral of power supply 24 Vac to
terminal (8) and output 24 Vac of thermostat to terminal (9):
(8): Neutral 24 Vac
(9): Phase input 24 Vac
(10): Not connected
Powered input: heating / cooling request
Not powered input: unit in standby
NOTE: On the terminals (9) and (10) a jumper is preinstalled (factory default). Remove the jumper be-
fore connecting the thermostat.

EN
15
• DHW CONTROLLER
• If switch SW3 (see page 30) of main board is set on 12 Vdc, connect thermostat dry contact between
poles (13) and (14):
(13): Low voltage input
(14): 12 Vdc
Closed contact: ACS production request / secondary setpoint selection
Open contact: normal mode
• If switch SW3 (see page 30) of main board is set on 24 Vac, connect neutral of power supply 24 Vac to
terminal (8) and output 24 Vac of thermostat to terminal (13):
(8): Neutral 24 Vac
(13): Phase input 24 Vac
(14): Not connected
Powered input: ACS production request / secondary setpoint selection
Not powered input: normal mode
• ECO MODE
• If switch SW3 (see page 30) of main board is set on 12 Vdc, connect thermostat dry contact between
poles (15) and (16):
(15): Low voltage input
(16): 12 Vdc
Closed contact: ECO mode selection (limitation of maximum power consumption)
Open contact: normal mode
• If switch SW3 (see page 30) of main board is set on 24 Vac, connect neutral of power supply 24 Vac
to terminal (8) and output 24 Vac of thermostat to terminal (15):
(8): Neutral 24 Vac
(15): Phase input 24 Vac
(16): Not connected
Powered input: ECO mode selection (limitation of maximum power consumption)
Not powered input: normal mode

EN
16
• OUTDOOR / MODBUS GATEWAY / 2 ZONE CONTROL / REMOTE CONTROLLER /
DATALOGGER (1 AND 2)
Connect terminals (C1) and (C2) to the corresponding terminals (C1) and (C2) of the outdoor unit, terminals
(C3) and (C4) to the corresponding terminals (C3) and (C4) of the connected unit (Remote controller, etc…).
Connect the shield of the communication wire to the corresponding ground wire.
OUTDOOR UNIT
DATALOGGER 1
MODBUS GATEWAY
DATALOGGER 2
OUTDOOR
MODBUS
DATALOGGER 1
C3
C3
C3
C4
C4
C4
C3
C4
C3
C4
C3
C4
C1
C2
• OUTDOOR TEMPERATURE SENSOR (OAT)
INSTALLATION OF THE OUTDOOR TEMPERATURE SENSOR FOR HEAT PUMP OPERATION
This sensor must be located outside in a location that is representative of the temperature to be measured
(on a wall facing North / North-west) and located away from parasitic heat sources (chimney, thermal bridge,
etc..) and sheltered from inclement weather (under a roof overhand, for example).
NOTE: The installation of this sensor is optional.
• ROOM TEMPERATURE CONTROLLER / SETPOINT CONTROLLER
(19): Low voltage ground
(20): Input 0-10 Vdc
(21): 12 Vdc

EN
17
WORKING MODE SELECTION WITH ON/OFF THERMOSTAT
WORKING MODE SELECTION WITH ON/OFF THERMOSTAT AND HEAT/COOLING (H/C)
NOTE: see paragraph “STARTING” section “JUMPERS/SWITCH SETTING” - ENABLING COOLING MODE
C
A
EXT.
OUTDOOR UNIT
DATALOGGER 1
MODBUS GATEWAY
DATALOGGER 2
SW3
B
C3
C3
C3
C4
C4
C4
OUTDOOR UNIT
C
A
EXT.
OUTDOOR UNIT
DATALOGGER 1
MODBUS GATEWAY
DATALOGGER 2
SW3
B
C3
C3
C3
C4
C4
C4
OUTDOOR UNIT
5.4 - CONNECTION EXAMPLES

EN
18
WORKING MODE SELECTION WITH ON/OFF THERMOSTAT AND ECO FUNCTION
WORKING MODE SELECTION WITH ON/OFF THERMOSTAT, THERMOSTAT FOR DHW
AND SAFETY THERMOSTAT
C
C
A
EXT.
OUTDOOR UNIT
DATALOGGER 1
MODBUS GATEWAY
DATALOGGER 2
SW3
B
C3
C3
C3
C4
C4
C4
OUTDOOR UNIT
C
A
EXT.
OUTDOOR UNIT
DATALOGGER 1
MODBUS GATEWAY
DATALOGGER 2
SW3
B
C3
C3
C3
C4
C4
C4
OUTDOOR UNIT

EN
19
WORKING MODE SELECTION WITHOUT THERMOSTAT
WORKING MODE SELECTION WITHOUT THERMOSTAT + SAFETY SWITCH
A
EXT.
OUTDOOR UNIT
DATALOGGER 1
MODBUS GATEWAY
DATALOGGER 2
SW3
B
C3
C3
C3
C4
C4
C4
OUTDOOR UNIT
C
A
EXT.
OUTDOOR UNIT
DATALOGGER 1
MODBUS GATEWAY
DATALOGGER 2
SW3
B
C3
C3
C3
C4
C4
C4
OUTDOOR UNIT

EN
20
WORKING MODE SELECTION WITH 0 - 10V ROOM TEMPERATURE CONTROLLER AND
DHW PRODUCTION
WORKING MODE SELECTION WITH 24 Vac THERMOSTAT AND DHW PRODUCTION
C
A
EXT.
OUTDOOR UNIT
DATALOGGER 1
MODBUS GATEWAY
DATALOGGER 2
SW3
B
C3
C3
C3
C4
C4
C4
OUTDOOR UNIT
A
EXT.
OUTDOOR UNIT
DATALOGGER 1
MODBUS GATEWAY
DATALOGGER 2
SW3
B
C3
C3
C3
C4
C4
C4
OUTDOOR UNIT