7.4Wiring diagram: Outdoor unit .................................................... 17
1About the documentation
a General safety precautions
1.1About this document
Target audience
Authorised installers
RZAG71~140M_V1+Y1
Sky Air Alpha-series
4P485927-1B – 2017.08
b Outdoor unit installation manual
c Cable tie
d Fluorinated greenhouse gases label
e Energy label
Installation manual
5
3 Preparation
(mm)
>150
620
350
(345-355)
4× M12
a
20
a
4× M12
≥150 mm
A
B
B
C
D
E
160160620
36
61
262
416
595
285
279
260
161
(345~355)
3Preparation
3.1Preparing the installation site
WARNING
The appliance shall be stored in a room without
continuously operating ignition sources (example: open
flames, an operating gas appliance or an operating electric
heater).
3.1.1Installation site requirements of the
outdoor unit
Mind the spacing guidelines. See the "Technical data" chapter, and
the figures on the inside of the front cover.
INFORMATION
The sound pressure level is less than 70dBA.
CAUTION
Appliance not accessible to the general public, install it in a
secured area, protected from easy access.
This unit, both indoor and outdoor, is suitable for
installation in a commercial and light industrial
environment.
NOTICE
Fix the outdoor unit to the foundation bolts using nuts with
resin washers (a). If the coating on the fastening area is
stripped off, the nuts rust easily.
4.1.2To install the outdoor unit
4.1.3To provide drainage
4Installation
4.1Mounting the outdoor unit
4.1.1To provide the installation structure
Prepare 4 sets of anchor bolts, nuts and washers (field supply) as
follows:
INFORMATION
If necessary, you can use a drain plug kit (field supply) to
prevent drain water from dripping.
NOTICE
If drain holes of the outdoor unit are covered by a mounting
base or by floor surface, raise the unit to provide a free
space of more than 150mm under the outdoor unit.
Drain holes (dimensions in mm)
Installation manual
6
a Make sure not to cover the drain holes of the bottom plate
of the unit.
INFORMATION
The recommended height of the upper protruding part of
the bolts is 20mm.
A Discharge side
B Distance between anchor points
C Bottom frame
D Drain holes
E Knockout hole for snow
Snow
In regions with snowfall, snow might build up and freeze between the
heat exchanger and the external plate. This might decrease the
operating efficiency. To prevent this:
1 Drill (a, 4×) and remove the knockout hole (b).
RZAG71~140M_V1+Y1
Sky Air Alpha-series
4P485927-1B – 2017.08
b
a b
4× Ø6 mm
c
a
b
d
a
b
c
d
cc
ba
4× Ø6 mm
a
b
d
e
f
b
a
c
a
2 Remove the burrs, and paint the edges and areas around the
edges using repair paint to prevent rusting.
4 Installation
▪ Drill (a, 4×) and remove the knockout hole (b).
▪ Cut out the slits (c) with a metal saw.
4.1.4To prevent the outdoor unit from falling
over
1 Prepare 2 cables as indicated in the following illustration (field
supply).
2 Place the 2 cables over the outdoor unit.
3 Insert a rubber sheet between the cables and the outdoor unit
to prevent the cable from scratching the paint (field supply).
4 Attach the cable’s ends. Tighten those ends.
4.2Connecting the refrigerant piping
DANGER: RISK OF BURNING
4 Do the following:
▪ Connect the liquid pipe (a) to the liquid stop valve.
▪ Connect the gas pipe (b) to the gas stop valve.
5 Do the following:
▪ Insulate the liquid piping (a) and the gas piping (b).
▪ Wind heat insulation around the curves, and then cover it
with vinyl tape (c).
▪ Make sure the field piping does not touch any compressor
components (d).
▪ Seal the insulation ends (sealant etc.) (e).
4.2.1To connect the refrigerant piping to the
outdoor unit
▪ Piping length. Keep field piping as short as possible.
▪ Piping protection. Protect the field piping against physical
damage.
1 Do the following:
▪ Remove the service cover (a) with screw (b).
▪ Remove the piping intake plate (c) with screw (d).
2 Choose a piping route (a, b, c or d).
6 If the outdoor unit is installed above the indoor unit, cover the
stop valves (f, see above) with sealing material to prevent
condensed water on the stop valves from moving to the indoor
unit.
NOTICE
Any exposed piping might cause condensation.
7 Reattach the service cover and the piping intake plate.
8 Seal all gaps (example: a) to prevent snow and small animals
from entering the system.
3 If you have chosen the downwards piping route:
RZAG71~140M_V1+Y1
Sky Air Alpha-series
4P485927-1B – 2017.08
Installation manual
7
4 Installation
a
c
f
c
f
bdeh
g
i
a
b
A
B
de
R32
R32
NOTICE
Do not block the air vents. This could affect air circulation
inside the unit.
WARNING
Provide adequate measures to prevent that the unit can be
used as a shelter by small animals. Small animals that
make contact with electrical parts can cause malfunctions,
smoke or fire.
NOTICE
Make sure to open the stop valves after installing the
refrigerant piping and performing vacuum drying. Running
the system with the stop valves closed may break the
compressor.
4.3Checking the refrigerant piping
4.3.1Checking refrigerant piping: Setup
NOTICE
Make sure to use a recommended bubble test solution
from your wholesaler. Do not use soap water, which may
cause cracking of flare nuts (soap water may contain salt,
which absorbs moisture that will freeze when the piping
gets cold), and/or lead to corrosion of flared joints (soap
water may contain ammonia which causes a corrosive
effect between the brass flare nut and the copper flare).
1 Charge the system with nitrogen gas up to a gauge pressure of
at least 200kPa (2 bar). It is recommended to pressurize to
3000kPa (30bar) in order to detect small leaks.
2 Check for leaks by applying the bubble test solution to all
connections.
3 Discharge all nitrogen gas.
4.3.3To perform vacuum drying
NOTICE
▪ Connect the vacuum pump to both the service port of
the gas stop valve and the service port of the liquid
stop valve to increase efficiency.
▪ Make sure that the gas stop valve and liquid stop valve
are firmly closed before performing the leak test or
vacuum drying.
1 Vacuum the system until the pressure on the manifold indicates
−0.1MPa (−1bar).
2 Leave as is for 4-5minutes and check the pressure:
If the pressure…Then…
Does not changeThere is no moisture in the
system. This procedure is
finished.
IncreasesThere is moisture in the
system. Go to the next step.
3 Evacuate for at least 2 hours to a pressure on the manifold of
−0.1MPa (−1bar).
4 After turning OFF the pump, check the pressure for at least
1hour.
5 If you do NOT reach the target vacuum or cannot maintain the
vacuum for 1hour, do the following:
▪ Check for leaks again.
▪ Perform vacuum drying again.
NOTICE
A Setup in case of pair
B Setup in case of twin
a Pressure gauge
b Nitrogen
c Refrigerant
d Weighing machine
e Vacuum pump
f Stop valve
g Main piping
h Refrigerant branch kit
i Branch piping
4.3.2To check for leaks
NOTICE
Do NOT exceed the unit's maximum working pressure (see
"PS High" on the unit name plate).
4.4Charging refrigerant
4.4.1About charging refrigerant
The outdoor unit is factory charged with refrigerant, but in some
cases the following might be necessary:
Make sure to open the stop valves after installing the
refrigerant piping and performing vacuum drying. Running
the system with the stop valves closed may break the
compressor.
WhatWhen
Charging additional refrigerantWhen the total liquid piping
length is more than specified
(see later).
Completely recharging refrigerant Example:
▪ When relocating the system.
▪ After a leak.
Installation manual
8
RZAG71~140M_V1+Y1
Sky Air Alpha-series
4P485927-1B – 2017.08
Charging additional refrigerant
a
b
c
Before charging additional refrigerant, make sure the outdoor unit's
external refrigerant piping is checked (leak test, vacuum drying).
INFORMATION
Depending on the units and/or the installation conditions, it
might be necessary to connect electrical wiring before you
can charge refrigerant.
Typical workflow – Charging additional refrigerant typically consists
of the following stages:
1 Determining if and how much you have to charge additionally.
2 If necessary, charging additional refrigerant.
3 Filling in the fluorinated greenhouse gases label, and fixing it to
the inside of the outdoor unit.
Completely recharging refrigerant
Before completely recharging refrigerant, make sure the following is
done:
1 All refrigerant is recovered from the system.
2 The outdoor unit's external refrigerant piping is checked (leak
test, vacuum drying).
3 Vacuum drying on the outdoor unit's internal refrigerant piping is
performed.
NOTICE
Before completely recharging, perform vacuum drying on
the outdoor unit's internal refrigerant piping as well.
NOTICE
To perform vacuum drying or a complete recharge of the
outdoor unit’s internal refrigerant piping it is necessary to
activate the vacuum mode (see "4.4.7 To activate/
deactivate the vacuum mode field setting" on page 11)
which will open required valves in the refrigerant circuit so
the vacuuming process or recharge of refrigerant can be
done properly.
▪ Before vacuum drying or recharging, activate field
setting "vacuum mode".
▪ After finishing vacuum drying or recharging, deactivate
field setting "vacuum mode".
WARNING
Some sections of the refrigerant circuit may be isolated
from other sections caused by components with specific
functions (e.g. valves). The refrigerant circuit therefore
features additional service ports for vacuuming, pressure
relief or pressurizing the circuit.
In case it is required to perform brazing on the unit, ensure
that there is no pressure remaining inside the unit. Internal
pressures need to be released with ALL the service ports
indicated on the figures below opened. The location is
depending on model type.
Location of service ports:
4 Installation
a Internal service port
b Stop valve with service port (liquid)
c Stop valve with service port (gas)
Typical workflow – Completely recharging refrigerant typically
consists of the following stages:
1 Determining how much refrigerant to charge.
2 Charging refrigerant.
3 Filling in the fluorinated greenhouse gases label, and fixing it to
the inside of the outdoor unit.
4.4.2About the refrigerant
This product contains fluorinated greenhouse gases. Do NOT vent
gases into the atmosphere.
Refrigerant type: R32
Global warming potential (GWP) value: 675
WARNING: FLAMMABLE MATERIAL
The refrigerant inside this unit is mildly flammable.
WARNING
The appliance shall be stored in a room without
continuously operating ignition sources (example: open
flames, an operating gas appliance or an operating electric
heater).
WARNING
▪ Do NOT pierce or burn refrigerant cycle parts.
▪ Do NOT use cleaning materials or means to accelerate
the defrosting process other than those recommended
by the manufacturer.
▪ Be aware that the refrigerant inside the system is
odourless.
RZAG71~140M_V1+Y1
Sky Air Alpha-series
4P485927-1B – 2017.08
Installation manual
9
4 Installation
L1 (m)
L1 (m)
L2=7 m
(Ø6.4 mm)
L3=5 m
(Ø6.4 mm)
L1=45 m (Ø9.5 mm)
RZAG100
L2=20 m
(Ø6.4 mm)
L3=17 m
(Ø6.4 mm)
L4=17 m
(Ø6.4 mm)
L1=15 m (Ø9.5 mm)
RZAG125
WARNING
The refrigerant inside the unit is mildly flammable, but
normally does not leak. If the refrigerant leaks in the room
and comes in contact with fire from a burner, a heater, or a
cooker, this may result in fire, or the formation of a harmful
gas.
Turn off any combustible heating devices, ventilate the
room, and contact the dealer from which you purchased
the unit.
Do not use the unit until a service person confirms that the
portion from which the refrigerant leaked is repaired.
4.4.3To determine the additional refrigerant
amount
To determine if adding additional refrigerant is necessary
See "4.3.1Checking refrigerant piping: Setup"on page8.
4.4.6To charge additional refrigerant
WARNING
▪ Only use R32 as refrigerant. Other substances may
cause explosions and accidents.
▪ R32 contains fluorinated greenhouse gases. Its global
warming potential (GWP) value is 675. Do NOT vent
these gases into the atmosphere.
▪ When charging refrigerant, always use protective
gloves and safety glasses.
Prerequisite: Before charging refrigerant, make sure the refrigerant
piping is connected and checked (leak test and vacuum drying).
1 Connect the refrigerant cylinder to both the service port of the
gas stop valve and the service port of the liquid stop valve.
2 Charge the additional refrigerant amount.
3 Open the stop valves.
4.4.7To activate/deactivate the vacuum mode
field setting
Description
To perform vacuum drying or a complete recharge of the outdoor
unit’s internal refrigerant piping it is necessary to activate the
vacuum mode which will open required valves in the refrigerant
circuit so the vacuuming process or recharge of refrigerant can be
done properly.
To activate vacuum mode:
Activating the vacuum mode is done by operating the push buttons
BS* on the PCB (A1P) and reading the feedback from the 7‑segment
displays.
Operate the switches and push buttons with an insulated stick (such
as a closed ball-point pen) to avoid touching of live parts.
3 When 2–28 is reached, press the BS3 button once.
4 Change the setting to '1' by pressing the BS2 button once .
5 Push the BS3 button once
6 When the display is not blinking anymore, press the BS3 button
again to activate vacuum mode.
To deactivate vacuum mode:
After charging or vacuuming the unit, please deactivate the vacuum
mode by changing the setting back to '0'.
Make sure to reattach the electronic component box cover and to
install the front cover after the job is finished.
NOTICE
Make sure that all outside panels, except for the service
cover on the electrical component box, are closed while
working.
Close the lid of the electrical component box firmly before
turning on the power.
4.4.8To completely recharge refrigerant
WARNING
▪ Only use R32 as refrigerant. Other substances may
cause explosions and accidents.
▪ R32 contains fluorinated greenhouse gases. Its global
warming potential (GWP) value is 675. Do NOT vent
these gases into the atmosphere.
▪ When charging refrigerant, always use protective
gloves and safety glasses.
Prerequisite: Before completely recharging refrigerant, make sure
the system is pumped down, the outdoor unit's external refrigerant
piping is checked (leak test, vacuum drying) and vacuum drying on
the outdoor unit's internal refrigerant piping is performed.
1 If not already done (for vacuum drying of the unit), activate the
vacuum mode (see "4.4.7 To activate/deactivate the vacuum
mode field setting"on page11)
2 Connect the refrigerant cylinder to the service port of the liquid
stop valve.
3 Open the liquid stop valve.
4 Charge the complete refrigerant amount.
5 Deactivate the vacuum mode (see "4.4.7To activate/deactivate
the vacuum mode field setting"on page11).
6 Open the gas stop valve.
4.4.9To fix the fluorinated greenhouse gases
label
1 Fill in the label as follows:
a If a multilingual fluorinated greenhouse gases label is
delivered with the unit (see accessories), peel off the
applicable language and stick it on top of a.
1 When the unit is powered on and not running, hold down the
BS1 pushbutton for 5 seconds.
Result: You will reach the setting mode, the 7 segment display
will show '200'.
2 Press the BS2 button until you reach page 2–28.
RZAG71~140M_V1+Y1
Sky Air Alpha-series
4P485927-1B – 2017.08
b Factory refrigerant charge: see unit name plate
c Additional refrigerant amount charged
d Total refrigerant charge
e Greenhouse gas emissions of the total refrigerant charge
expressed as tonnes CO2-equivalent
f GWP = Global warming potential
Installation manual
11
4 Installation
NOTICE
In Europe, the greenhouse gas emissions of the total
refrigerant charge in the system (expressed as tonnes
CO2-equivalent) is used to determine the maintenance
intervals. Follow the applicable legislation.
Formula to calculate the greenhouse gas emissions:
GWP value of the refrigerant × Total refrigerant charge [in
kg] / 1000
2 Fix the label on the inside of the outdoor unit. There is a
dedicated place for it on the wiring diagram label.
4.5Connecting the electrical wiring
DANGER: RISK OF ELECTROCUTION
WARNING
ALWAYS use multicore cable for power supply cables.
CAUTION
For use of units in applications with temperature alarm
settings it is recommended to foresee a delay of 10
minutes for signalling the alarm in case the alarm
temperature is exceeded. The unit may stop for several
minutes during normal operation for "defrosting the unit", or
when in "thermostat stop" operation.
4.5.1About electrical compliance
RZAG71~140M7V1B
Equipment complying with EN/IEC 61000‑3‑12 (European/
International Technical Standard setting the limits for harmonic
currents produced by equipment connected to public low-voltage
systems with input current >16A and ≤75A per phase.).
RZAG71~140M7Y1B
Equipment complying with EN/IEC 61000‑3‑2 (European/
International Technical Standard setting the limits for harmonic
currents produced by equipment connected to public low-voltage
systems with input current ≤16A per phase.).
4.5.2Guidelines when connecting the electrical
wiring
If limited space is available at the wire terminal, use bended crimpstyle ring terminals.
4.5.3Specifications of standard wiring components
ComponentV1Y1
Power supply cable MCA
Interconnection cablesMinimum cable section of 2.5 mm² and applicable for 230 V
Recommended field fuse20A32A16A
Earth leakage circuit breakerMust comply with applicable legislation
(a) MCA=Minimum circuit ampacity. Stated values are maximum values (see electrical data of combination with indoor units for exact values).
(a)
Voltage range220~240V380~415V
Phase1~3N~
Frequency50Hz
Wire sizesMust comply with applicable legislation
71100~14071100125140
18.8A28.5A12.3A15.9A15.7A15.4 A
4.5.4To connect the electrical wiring on the
outdoor unit
NOTICE
▪ Follow the wiring diagram (delivered with the unit,
located at the inside of the service cover).
▪ Make sure the electrical wiring does NOT obstruct
proper reattachment of the service cover.
1 Remove the service cover.
2 Connect the interconnection cables and power supply as
follows:
Installation manual
12
RZAG71~140M_V1+Y1
Sky Air Alpha-series
4P485927-1B – 2017.08
4 Installation
c
a
d
e
1~50 Hz
220-240 V
3N~50 Hz
380-415 V
V1Y1
L1 L2 L3
L1 L2 L3
N
b
b
a
a
a
a
71
d
c
e
100~140
d
e
c
d
f
d
c
c
f
b
a
b
a
b
a
b
2
3
1
a b cde
A B
f
b
a
e
d
c
I, II, III, IV Pair, twin, triple, double twin
M, S Master, slave
a Interconnection cables
b Power supply cable
c Earth leakage circuit breaker
d Fuse
e User interface
Routing through
the frame
Connecting to the
frame
Choose one of the 3 possibilities:
a Power supply cable
b Interconnection cable
When cables are routed from the unit, a
protection sleeve for the conduits (PG
insertions) can be inserted at the knockout
hole.
When you do not use a wire conduit,
protect the wires with vinyl tubes to
prevent the edge of the knockout hole from
cutting the wires.
A Inside of the outdoor unit
B Outside of the outdoor unit
a Wire
b Bush
c Nut
d Frame
e Hose
5 Reattach the service cover.
6 Connect an earth leakage circuit breaker and fuse to the power
supply line.
4.6Finishing the outdoor unit
installation
4.6.1To finish the outdoor unit installation
1 Insulate and fix the refrigerant piping and interconnection cable
a Switch box
b Stop valve attachment plate
c Earth
d Cable tie
e Interconnection cable
3 Fix the cables (power supply and interconnection cable) with a
cable tie to the stop valve attachment plate and route the wiring
according to the illustration above.
4 Route the wiring through the frame and connect the wiring to
the frame at the knockout hole.
RZAG71~140M_V1+Y1
Sky Air Alpha-series
4P485927-1B – 2017.08
f Power supply cable
as follows:
a Gas pipe
b Gas pipe insulation
c Interconnection cable
d Liquid pipe
e Liquid pipe insulation
f Finishing tape
2 Install the service cover.
Installation manual
13
5 Commissioning
AB
Cool
Set to
28°C
ReturnSetting
Service Settings 1/3
Test Operation
Maintenance Contact
Field Settings
Demand
Min Setpoints Differential
Group Address
4.6.2To check the insulation resistance of the
compressor
NOTICE
If, after installation, refrigerant accumulates in the
compressor, the insulation resistance over the poles can
drop, but if it is at least 1 MΩ, then the unit will not break
down.
▪ Use a 500V mega-tester when measuring insulation.
▪ Do not use a mega-tester for low-voltage circuits.
1 Measure the insulation resistance over the poles.
IfThen
≥1MΩInsulation resistance is OK. This procedure
is finished.
<1MΩInsulation resistance is not OK. Go to the
next step.
2 Turn ON the power and leave it on for 6hours.
Result: The compressor will heat up and evaporate any
refrigerant in the compressor.
3 Measure the insulation resistance again.
5Commissioning
NOTICE
NEVER operate the unit without thermistors and/or
pressure sensors/switches. Burning of the compressor
might result.
There are NO refrigerant leaks.
The correct pipe size is installed and the pipes are
properly insulated.
The stop valves (gas and liquid) on the outdoor unit are
fully open.
5.2To perform a test run
This task is only applicable when using the BRC1E52 user interface.
▪ When using BRC1E51, see the installation manual of the user
interface.
▪ When using BRC1D, see the service manual of the user interface.
NOTICE
Do not interrupt the test run.
INFORMATION
Backlight. To perform an ON/OFF action on the user
interface, the backlight does not need to be lit. For any
other action, it needs to be lit first. The backlight is lit for
±30seconds when you press a button.
1 Perform introductory steps.
#Action
1Open the liquid stop valve (A) and gas stop valve (B)
by removing the stem cap and turning
counterclockwise with a hex wrench until it stops.
5.1Checklist before commissioning
Do NOT operate the system before the following checks are OK:
You read the complete installation instructions, as
described in the installer reference guide.
The indoor units are properly mounted.
In case a wireless user interface is used: The indoor unitdecoration panel with infrared receiver is installed.
The outdoor unit is properly mounted.
The following field wiring has been carried out according
to this document and the applicable legislation:
▪ Between the local supply panel and the outdoor unit
▪ Between the outdoor unit and the indoor unit (master)
▪ Between the indoor units
There are NO missing phases or reversed phases.
The system is properly earthed and the earth terminals
are tightened.
The fuses or locally installed protection devices are
installed according to this document, and have not been
bypassed.
The power supply voltage matches the voltage on the
identification label of the unit.
There are NO loose connections or damaged electrical
components in the switchbox.
The insulation resistance of the compressor is OK.
2Close the service cover to prevent electric shocks.
3Turn ON power for at least 6hours before starting
operation to protect the compressor.
4On the user interface, set the unit to cooling operation
mode.
2 Start the test run.
#ActionResult
1Go to the home menu.
2Press at least 4seconds.The Service Settings menu
is displayed.
3Select Test Operation.
There are NO damaged components or squeezedpipes on the inside of the indoor and outdoor units.
Installation manual
14
RZAG71~140M_V1+Y1
Sky Air Alpha-series
4P485927-1B – 2017.08
6 Disposal
Cool
ReturnSetting
Test Operation
Return Setting
ReturnSetting
Air Volume/direction
Air VolumeDirection
Position 0
Low
Return Setting
ReturnSetting
Air Volume/direction
Air VolumeDirection
Low
Position 0
ReturnSetting
Service Settings 1/3
Test Operation
Maintenance Contact
Field Settings
Demand
Min Setpoints Differential
Group Address
#ActionResult
4Press.
Test Operation is
displayed on the home
menu.
5Press within 10seconds.Test run starts.
3 Check operation for 3minutes.
4 Check operation of the airflow direction.
#ActionResult
1Press.
2Select Position 0.
Error codePossible cause
Nothing displayed
(the currently set
temperature is not
displayed)
▪ The wiring is disconnected or there is a
wiring error (between power supply and
outdoor unit, between outdoor unit and
indoor units, between indoor unit and
user interface).
▪ The fuse on the outdoor unit PCB has
blown out.
E3, E4 or L8▪ The stop valves are closed.
▪ The air inlet or air outlet is blocked.
E7There is a missing phase in case of three-
phase power supply units.
Note: Operation will be impossible. Turn
OFF the power, recheck the wiring, and
switch two of the three electrical wires.
L4The air inlet or air outlet is blocked.
U0The stop valves are closed.
U2▪ There is a voltage imbalance.
▪ There is a missing phase in case of
three-phase power supply units. Note:
Operation will be impossible. Turn OFF
the power, recheck the wiring, and switch
two of the three electrical wires.
U4 or UFThe inter-unit branch wiring is not correct.
UAThe outdoor and indoor unit are
incompatible.
3Change the position.If the airflow flap of the
indoor unit moves,
operation is OK.
If not, operation is not OK.
4Press.
The home menu is
displayed.
5 Stop the test run.
#ActionResult
1Press at least 4seconds.
The Service Settings menu
is displayed.
2Select Test Operation.
3Press.The unit returns to normal
operation, and the home
menu is displayed.
NOTICE
▪ The reversed phase protection detector of this product
only functions when the product starts up.
Consequently reversed phase detection is not
performed during normal operation of the product.
▪ The reversed phase protection detector is designed to
stop the product in the event of an abnormality when
the product is started up.
▪ Replace 2 of the 3 phases (L1, L2, and L3) during
reverse-phase protection abnormality.
6Disposal
NOTICE
Do not try to dismantle the system yourself: the dismantling
of the system, treatment of the refrigerant, oil and other
parts must comply with applicable legislation. Units must
be treated at a specialised treatment facility for reuse,
recycling and recovery.
5.3Error codes when performing a
If the installation of the outdoor unit has NOT been done correctly,
the following error codes may be displayed on the user interface:
RZAG71~140M_V1+Y1
Sky Air Alpha-series
4P485927-1B – 2017.08
test run
Installation manual
15
7 Technical data
7Technical data
A subset of the latest technical data is available on the regional Daikin website (publicly accessible). The full set of latest technical data is
available on the Daikin extranet (authentication required).
7.1Overview: Technical data
This chapter contains information about:
• Service space
• Piping diagram
• Wiring diagram
7.2Service space: Outdoor unit
Suction sideIn the illustrations below, the service space at the suction side is based on 35°CDB and cooling operation. Foresee
Discharge sideTake refrigerant piping work into account when positioning the units. If your layout does not match with any of the
Single unit () | Single row of units ()
See figure 1 on the inside of the front cover.
A,B,C,D Obstacles (walls/baffle plates)
E Obstacle (roof)
a,b,c,d,e Minimum service space between the unit and obstacles A, B, C, D and E
eBMaximum distance between the unit and the edge of obstacle E, in the direction of obstacle B
eDMaximum distance between the unit and the edge of obstacle E, in the direction of obstacle D
HUHeight of the unit
HB,HDHeight of obstacles B and D
1 Seal the bottom of the installation frame to prevent discharged air from flowing back to the suction side through the bottom of the unit.
2 Maximum two units can be installed.
Not allowed
Multiple rows of units ()
See figure 2 on the inside of the front cover.
Stacked units (max. 2 levels) ()
See figure 3 on the inside of the front cover.
A1=>A2 (A1) If there is danger of drainage dripping and freezing between the upper and lower units…
(A2) Then install a roof between the upper and lower units. Install the upper unit high enough above the lower unit to prevent ice buildup at the
upper unit's bottom plate.
B1=>B2 (B1) If there is no danger of drainage dripping and freezing between the upper and lower units…
(B2) Then it is not required to install a roof, but seal the gap between the upper and lower units to prevent discharged air from flowing back to the
suction side through the bottom of the unit.
more space in the following cases:
▪ When the suction side temperature regularly exceeds this temperature.
▪ When the heat load of the outdoor units is expected to regularly exceed the maximum operating capacity.
layouts below, contact your dealer.
Installation manual
16
RZAG71~140M_V1+Y1
Sky Air Alpha-series
4P485927-1B – 2017.08
7.3Piping diagram: Outdoor unit
LPS
HPS
sv
A
B
LPS
1
Charge port / Service port (with 5/16" flare)
Stop valve
The wiring diagram is delivered with the unit, located at the inside of
the service cover.
(1) Connection diagram
EnglishTranslation
Connection diagramConnection diagram
Only for ***Only for ***
See note ***See note ***
OutdoorOutdoor
IndoorIndoor
UpperUpper
LowerLower
FanFan
ONON
OFFOFF
(2) Layout
EnglishTranslation
LayoutLayout
FrontFront
BackBack
Position of compressor terminalPosition of compressor terminal
(3) Notes
NotesNotes
X1MIndoor/outdoor communication
RZAG71~140M_V1+Y1
Sky Air Alpha-series
4P485927-1B – 2017.08
EnglishTranslation
Connection
Earth wiring
NOTES:
1Refer to the wiring diagram sticker (on the back of the front
2When operating, do not short-circuit protective devices S1PH
3Refer to the combination table and the option manual for how