ActronAir ECOFLEX MINI VRF Series User manual

ECOFLEX MINI VRF R-32 SERIES
Air Conditioner - Outdoor
Installation and Commissioning Guide
CAUTION:
The system is charged with flammable
refrigerant, safety checks are necessary to
ensure that the risk of ignition is minimised.
IMPORTANT NOTE:
Please read the R-32 Safety Manual and this manual carefully
before installing or operating your air conditioning unit.
Information in this manual is to be used in conjunction with
the R-32 Safety Manual.
Make sure to save this manual for future reference.
Model Numbers
Single Phase Three Phase
MMV-080CS
MMV-100CS
MMV-120CS
MMV-140CS
MMV-160CS
MMV-180CS
MMV-120CT
MMV-140CT
MMV-160CT
MMV-180CT

2Installation & Commissioning Guide ECOFLEX MINI VRF R-32 SERIES - OUTDOOR
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Installation Manual ECOFLEX MINI VRF R-32 SERIES
Table of Contents
. PRECAUTIONS ............................................................................................................................... 
. PACKING BOX ................................................................................................................................ 
. Delivery and Moving 
. Attached Fittings 
. OUTDOOR UNIT ............................................................................................................................ 
. Outdoor Unit Combination Ratio 
. Outdoor unit Stop Valve Size 
. PREPARATIONS BEFORE INSTALLATION ......................................................................................... 
. Choosing and Preparing the Installation Site 
. Selecting and Preparing the Refrigerant Piping 
. OUTDOOR UNIT INSTALLATION ................................................................................................... 
. Preparing the Structure for Installation 
. Things to Note When Connecting the Refrigerant Piping 
. Refrigerant Piping Connection 
. Leak Detection 
. Heat Insulation 
. Airtight Test 
. Air Purge with Vacuum Pump 
. Refrigerant Amount to be Added 
. ELECTRICAL WIRING .................................................................................................................... 
. Safety Device Requirements 
. Connecting the Power Cord 
. Connecting the Communication Wiring 
. CONFIGURATION ......................................................................................................................... 
. Overview 
. Digital Display and Button Settings 
. COMMISSIONING ........................................................................................................................ 
. Overview 
. Things to Note During the Test Run 
. Checklist Before Test Run 
. About Test Run 
. Test Run Implementation 
. Rectifications after Test Run is Completed with Exceptions 
. Operating This Unit 
. PRECAUTIONS ON REFRIGERANT LEAKAGE .................................................................................. 
. Important Information for the Used Refrigerant 
. Start Up and Commissioning ....................................................................................................... 
. Recording of Final R- Refrigerant Charge 
. Start Up and Commissioning Report 
. Handing over to the customer 
. TECHNICAL DATA ........................................................................................................................ 
. Component Layout and Refrigerant Circuits 
. Fan Performance 
. Before Operating ......................................................................................................................... 
. Overview 
. Safety Instructions 
. Instructions for Application Using R- Refrigerant 
. OPERATIONS ............................................................................................................................... 
. Operating Range 
. Operation and Performance 

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Installation & Commissioning Guide ECOFLEX MINI VRF R-32 SERIES - OUTDOOR
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Installation Manual ECOFLEX MINI VRF R-32 SERIES
. MAINTENANCE AND REPAIR ....................................................................................................... 
. Maintenance After the Unit Has Been Shut Down for a Long Period 
. About the Refrigerant 
. Shorter Maintenance and Replacement Cycle 
. TROUBLESHOOTING .................................................................................................................... 
. Air Conditioner Troubles and Their Causes 
. Troubles and Causes of Remote Controller 
. Error Code: Overview 
. Fault Symptom: Non Air Conditioning Issues 
. CHANGING INSTALLATION SITE AND DISPOSAL ........................................................................... 
. Maintenance Frequency Checklist ............................................................................................... 
NOTE
The figures in this manual are for explanation purposes only. They may be slightly different from the air conditioner you
purchased (depending on the model). The actual shape shall prevail.
The single-phase units comply with IEC 61000-3-12.
NOTE
The single-phase units comply with IEC 61000-3-12.
The figures in this manual are for explanation purposes only. They may be slightly different from the air conditioner you
purchased (depending on the model). The actual shape shall prevail.
Refrigerant pipe
connector
Air inlet
Mounting
bracket
Air outlet

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Installation Manual ECOFLEX MINI VRF R-32 SERIES
. PRECAUTIONS
• Ensure that all Local, National and International regulations are satisfied.
• Read these “PRECAUTIONS” carefully before Installation.
• The precautions described below include important items regarding safety. Observe them without fail.
• After the installation work, perform a trial operation to check for any problems.
• Follow the Operation Manual to explain how to use and maintain the unit to the customer.
• Turn off the main power supply breaker before maintaining the unit.
• Ask the customer to keep the Installation Manual and the Operation Manual should together.
CAUTION
New Refrigerant Air Conditioner Installation
THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT(R-32) WHICH HAS A LOW GWP.
The characteristics of R-32 refrigerant are: it is a hydrophilic, oxidizing membrane or oil, and its pressure is approx. 1.6
times higher than that of refrigerant R-22. Accompanied with the new refrigerant, refrigerating oil has also been changed.
Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating oil does not enter the
refrigerating cycle.
To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging port of the
main unit and installation tools are different from those for the conventional refrigerant.
This means that exclusive tools are required for the new refrigerant (R-32):
For connecting pipes, use new and clean piping designed for R-32, and please take care so that water or dust does not enter.
In addition, do not use the existing piping because there are problems with pressure-resistance force and impurities in it.
CAUTION
Do not connect the appliance to the main power supply.
This unit must be connected to the main power supply by means of a switch with a contact separation of at least 3 mm.
The installation breaker must be used for the power supply line of this air conditioner.
WARNING
• If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly qualified person in
order to avoid creating a hazard.
• An all-pole disconnection switch which has a contact separation of at least 3 mm in all poles should be connected using fixed
wiring.
• The appliance shall be installed in accordance with national wiring regulations.
• The temperature of the refrigerant circuit will be high. Please keep the interconnection cable away from the copper tube.
• An all-pole disconnection device which has at least 3 mm of separation distance in all poles and a residual current device
(RCD) with the rating of above 10 mA shall be incorporated in the fixed wiring according to national requirements.
• The power cord type designation is H05RN-R/H07RN-F or above.
• Ask an authorized dealer or qualified installation professional to install or maintain the air conditioner.
• Inappropriate installation may result in water leakage, electric shock or fire.
• Turn off the main power supply breaker before attempting any electrical work.
• Make sure all power breakers are off. Failure to do so may cause electric shock.
• Connect the connecting cable correctly.

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Installation Manual ECOFLEX MINI VRF R-32 SERIES
WARNING
• If the connecting cable is connected incorrectly, electric parts may become damaged.
• When moving the air conditioner for the installation into another place, be very careful not to enter any gaseous matter
other than the specified refrigerant into the refrigeration cycle.
• If air or any other gas is mixed into the refrigerant, the gas pressure in the refrigeration cycle becomes abnormally high and
it may cause pipes to burst and injuries on persons.
• Do not modify this unit by removing any of the safety guards or by by-passing any of the safety interlock switches.
• Exposure of the unit to water or other moisture before installation may cause a short-circuiting of electrical parts.
• Do not store the unit in a wet basement or expose it to rain or water.
• After unpacking the unit, examine it carefully to see if there is possible damage.
• Do not install the unit in a place that might increase the vibration of the unit.
• To avoid personal injury (with sharp edges), be careful when handling parts.
• Perform installation work properly according to the Installation manual.
• Inappropriate installation may result in water leakage, electric shock or fire.
• When the air conditioner is installed in a small room, take appropriate measures to ensure that the concentration of
refrigerant leakage occurring in the room does not exceed the critical level.
• Install the air conditioner securely in a location where the base can sustain the weight adequately.
• Perform the specified installation work to guard against an earthquake.
• If the air conditioner is not installed appropriately, the unit could fall and cause an accident.
• If refrigerant gas has leaked during installation, ventilate the room immediately.
• If the leaked refrigerant gas comes into contact with fire, noxious gas may be generated.
• After the installation work, confirm that refrigerant gas does not leak.
• If refrigerant gas leaks into the room and flows near a source of flame, such as a cooking range, noxious gas might be
generated.
• Electrical work must be performed by a qualified electrician in accordance with the installation manual. Make sure the air
conditioner uses a dedicated power supply.
• An insufficient power supply capacity or inappropriate installation may cause fire.
• Use the specified cables for wiring to connect the terminals securely, and to prevent external forces applied to the terminals
from affecting the terminals.
Be sure to provide grounding.
Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone cables.
Conform to the regulations of the local electric company when wiring the power supply.
Inappropriate grounding may cause electric shock.
Do not install the air conditioner in a location subject to a risk of exposure to a combustible gas.
If a combustible gas leaks, and stays around the unit, a fire may occur.

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Installation Manual ECOFLEX MINI VRF R-32 SERIES
Required tools for installation work
1 Philips screw driver 2 Hole core drill (65mm)
3 Spanner 4 Pipe cutter
5 Knife 6 Reamer
7 Gas leak detector 8 Tape measure
9 Thermometer 10 Mega-tester
11 Electro circuit tester 12 Hexagonal wrench
13 Flare tool 14 Pipe bender
15 Level vial 16 Metal saw
17 Gauge manifold (Charge hose: R-32 special
requirement)
18 Vacuum pump (Charge hose: R-32 special require-
ment)
19 Torque wrench
1/4 (6.4 mm) 14.2-17.2 N·m (144-176 kgf·cm)
3/8 (9.5 mm) 32.7-39.9 N·m (333-407 kgf·cm)
1/2 (12.7 mm) 49.5-60.3 N·m (504-616 kgf·cm)
5/8 (15.9 mm) 61.8-75.4 N·m (630-770 kgf·cm)
20 Copper pipe gauge adjusting projection margin 21 Vacuum pump adapter
Equipment complying with IEC 61000-3-12.
. PACKING BOX
02.01. Delivery and Moving
Delivery
Remember the following:
• At the time of delivery, check the unit for any damage. Report any damage immediately to the carrier’s claim agent.
• As far as possible, transport the packaged unit to its final installation site to prevent damage during the handling
process.
• Take note of the following items when transporting the unit:
• Fragile. Handle with care.
• Keep the unit with its front facing upwards so as not to damage it
• Select the unit transportation path in advance.
Moving
• Since the gravity center of the unit is not at its physical center, please be careful when lifting it with a sling.
• Never hold the inlet of the outdoor unit to prevent it from deforming.
• Do not touch the fan with your hands or other objects.
• Do not lean the unit more than 45°, and do not lay it on its side.

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Installation Manual ECOFLEX MINI VRF R-32 SERIES
02.02. Attached Fittings
INSTALLATION
FITTINGS
NAME APPEARANCE QUANTITY
Outdoor Unit Installation manual 1
1
Water outlet pipe connector 1
Magnetic ring (Only for single-phase
units) 1
Build-out resistor 1
NOTE
• Check if any accessory in the above figure is missing. All the accessories must be kept properly.
• All the fittings should be factory fittings.
• Wired/Remote controller —purchase separately.
• Outlet sealant — purchase separately.
• All the figures in the manual explain only the general appearance and dimensions of the unit. The air conditioner you
purchased may not be completely consistent with the appearance and functions listed in the figures. Please refer to the
actual product.
. OUTDOOR UNIT
03.01. Outdoor Unit Combination Ratio
Single-phase outdoor unit
Outdoor Unit
model (kW)
Capacity of
Outdoor Unit
(horsepower)
Number of IDUs Combination Ratio
83.0 1~5 50%~160%
10 3.6 1~6 50%~160%
12 4.5 1~8 50%~160%
14 5.0 1~10 50%~160%
16 6.0 1~11 50%~160%
18 6.5 1~12 50%~160%
Three-phase outdoor unit
Outdoor Unit
model (kW)
Capacity of
Outdoor Unit
(horsepower)
Number of IDUs Combination Ratio
12 4.5 1~8 50%~160%
14 5.0 1~10 50%~160%
16 6.0 1~11 50%~160%
18 6.5 1~12 50%~160%

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Installation Manual ECOFLEX MINI VRF R-32 SERIES
CAUTION
• The total capacity of the Indoor Units, measured in KW, must not exceed 160% of the capacity of the Outdoor Unit.
When the combination ratio of Indoor Unit exceeds 100%, the output capacity of the system may decrease.
• When the startup capacity of the Indoor Unit is greater than 130% of the Outdoor Unit, the operating fan speed of
Indoor Unit is limited to low speed.
• The heating capacity of the system decreases as the ambient outdoor temperature decreases.
• In areas where the design heating temperature of the air conditioner is ≤5°C and the unit needs to be fully switched
on, the combination ratio of indoor unit is recommended not to exceed 110%.
• In areas where the design heating temperature of the air conditioner is ≤0°C and the unit needs to be fully switched
on, the combination ratio of indoor unit is recommended not to exceed 100%.
03.02. Outdoor unit Stop Valve Size
Outdoor Unit
model (kW)
The size of outdoor unit stop valve(mm
Gas Side Liquid Side
8 Ø15.9 Ø9.52
10 Ø15.9 Ø9.52
12 Ø15.9 Ø9.52
14 Ø15.9 Ø9.52
16 Ø15.9 Ø9.52
18 Ø15.9 Ø9.52
. PREPARATIONS BEFORE INSTALLATION
04.01. Choosing and Preparing the Installation Site
04.01.01. Site requirements
Please refrain from installing the unit in the following places, or malfunction of the machine may occur:
• A place where there is combustible gas leakage.
• A place where there is a lot of oil (including engine oil). A place where there is salty air (locations near the
coast)
• A place where there is caustic gas (sulfide, for example) present in the air (near a hot spring)
• A place where the heated air expelled out from the outdoor unit can reach your neighbor’s window.
• A place where the noise interferes with your neighbors’ everyday life.
• A place that is too weak to bear the weight of the unit An uneven place.
• A place with insufficient ventilation.
• Near a private power station or high frequency equipment.
• Install the indoor unit, outdoor unit, power cord and connecting wire at least 1 m away from a TV set or radio
to prevent noise or picture interference.
• Install the unit in a place that can offer enough space for installation and maintenance. Don’t install it in a place
that has high requirements regarding noise, such as in a bedroom.

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Installation Manual ECOFLEX MINI VRF R-32 SERIES
CAUTION
• Install the outdoor unit at a place where discharge air is not blocked.
• When an outdoor unit is installed in a place that is frequently exposed to strong winds like a coast or on the high
story of a building, ensure normal fan operation by using a duct or a wind shield.
• When installing the outdoor unit in a place that is constantly exposed to a strong wind such as the upper floors or
rooftop of a building, apply the windproof measures referring to the following examples.
• Supposing the wind direction during the operation season of the discharge port is set at a right angle to the wind
direction.
600
150
600
04.01.02. Installation space
Figure 4-2
600
150
600
600
150
600
Model 8/10/12/14/16/18kW
A 1038 mm
B 1073 mm
C 454 mm
D 409 mm
E 191 mm
F 656 mm
G 864 mm
H 463 mm
I 523 mm

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Installation Manual ECOFLEX MINI VRF R-32 SERIES
Single unit installation
Figure 4-3
> 300
> 2000
> 300
> 600
(Wall or obstacle)
Air outlet surface
Air inlet surface
Air inlet
surface
Maintenance
cable and
pipeline surface
Parallel connect the two units or above
600
150
600
Parallel connect the front with rear sides
600
150
600
CAUTION
600
150
600
Keep a distance of 2000mm or
more between the unit and the
wall surface when the discharge
port faces to the wall of the
building.