Pioneer YN-M Series User manual

IMPORTANT NOTE:
Read this manual carefully before
installing or operating your new air
conditioning unit. Be sure to store
this manual for your future reference.
This manual only describes the outdoor
unit of the system. For more info on the
indoor unit, refer to its installation manual.
•
MULTI-SPLIT SYSTEM AIR CONDITIONER / HEAT PUMP
Installation
Manual
YN-M Series
Inverter++ Models
Two, Three, Four, and Five Zones
(Dual, Triple, Quad, and Quint Multi)
•

Accessories.......................................................................04
Safety Precautions................................................... 05
Outdoor Unit Installation....................................09
a. Outdoor Unit Installation Instructions..........09
b. Drain Joint Installation..............................................11
c. Notes on Wall Hole Drilling....................................11
d. When Selecting a 24K Indoor Unit...................11
Table of Contents
Installation Manual
Installation Diagram...............................................07
Installation Overview............................................06
1
2
6
3
4
Specications.................................................................08
5

Page 3 
Refrigerant Piping Connection.....................12
Wiring...................................................................14
a. Outdoor Unit Wiring.............................14
b. Wiring Figure..............................................16
Air Evacuation...........................................................19
a. Evacuation Instructions....................................19
b. Note on Adding Refrigerant.........................26
Test Run.......................................................27
Function of Automatic Wiring/Piping Correction......28
MC MC
7
8
9
10
11
L1 L2

Page 4 
Accessories 1
The air conditioning system comes with the below accessories. Use all of the installation parts and
accessories to install the air conditioner. Improper or incomplete installation can result in water
leakage, electrical shock and re, or equipment failure.
Name Shape Quantity
Connecting
pipe
assembly
Liquid side
Gas side
1
Drain joint (some models)
1
Seal ring (some models)
Ø9.52 (3/8) 9K
Ø6.35 (1/4) 9K, 12K, 18K
Parts sold separately.
Consult a technician to
learn the proper size.
Ø12.7 (1/2) 12K, 18K
Ø9.52 (3/8) 24K
Ø15.9 (5/8) 24K
1
1
Owner’s manual
Installation manual
Optional part
(one piece/one indoor unit)
Optional part
(1-5 pieces for outdoor
unit, depending on models)
Transfer connector (packed with the indoor or
outdoor unit, depending on models)
NOTE: Pipe size may dier based on capacity and model
To meet dierent pipe size requirements, sometimes
the pipe connections need a transfer connector adapter
to be installed on the outdoor unit service valves.
Optional part
(one piece/one cable)
Magnetic ring
(Hitch onto the connective cable between the indoor
unit and outdoor unit after installation)
1
Cord protection rubber ring
(If the cord clamp cannot secure a small diameter cord,
use the cord protection rubber ring [supplied with
accessories] to wrap around the cord. Then, x it in
place with the cord clamp.)
(on some models)
Optional Accessories
There are two types of remote controls: wired and wireless.
Select a remote controller based on personal preferences and requirements, and install it in an
appropriate place.
Refer to catalogs and technical literature for guidance on selecting a suitable remote controller.

Page 5 
Safety Precautions 2
Read and Understand All Safety Precautions Before Installation
Incorrect installation due to negligence of instructions can lead to serious damage or injury.
The magnitude of potential damages or injuries is classified as either a WARNING or CAUTION.
WARNING
• Carefully read the Safety Precautions before installation.
• In certain functional environments, such as kitchens, server rooms, etc., the use of specially
designed air-conditioning units is highly recommended. This is a comfort cooling system.
• Only trained and certied technicians should install, repair, and service this air
conditioning unit.
Installation by unqualied persons is highly ill-advised, and can cause diminished performace, as
well as risk of damage to equipment or nearby persons.
• Strictly follow the installation instructions set forth in this manual.
Improper installation may lead to electrical shock, short circuit, leaks, fire or other damage to
the equipment.
• Before installing the unit, consider strong winds, earthquakes, or other hazards that might aect
your unit, and locate it accordingly. Failure to do so could cause equipment failure.
• After installation, ensure that there are no refrigerant leaks and that the unit is operating properly.
Refrigerant and/or oil in the system is toxic, flammable, and poses a serious health and safety risk.
Note about Fluorinated Gasses
1. This air-conditioning unit contains fluorinated refrigerant, commonly known as R410a.
For the charged amount, please refer to the relevant label on the unit side panel.
2. Installation, service, maintenance, and repair of this unit must be performed by a certified
technician possessing specialized training and specic tools.
3. Product removal and recycling must also be performed by a certified technician.
4. If the system has a leak-detection feature installed, it must be checked for leaks at least every 12
months.
5.
When the unit is checked for leaks, proper record-keeping of all checks is strongly recommended.
Failure to observe a warning may result in severe injury or death. The appliance must be
installed in full accordance with all relevant national regulations.
Failure to observe a caution may result in injury or equipment damage.
WARNING
CAUTION

Page 6 
Installation Overview 3
Unit Installation
Overview
L1 L2
123
MC MC
4
5
INSTALLATION ORDER
Install the outdoor unit
(Page 9)
Evacuate each of the line
sets and Indoor Units.
(Page 20)
Connect the wires
(Page 14)
Connect the refrigerant pipes
(Page 12)
Perform a test run
(Page 22)

Page 7 
Installation Diagram 4
Installation Diagram
Fig. 4.1
Safety Precautions
CAUTION
•This illustration is for demonstration
purposes only.
The actual shape of your air conditioner may
be slightly dierent.
Copper lines must be independently and
individually insulated.
•
CAUTION
•To prevent wall damage, use a stud nder
to locate studs.
A minimum pipe run of 3 m. (10’) is needed
to minimize vibration and excessive noise.
A, B, and C air circulation clearance area and
pathways must be free from obstructions
at all times.
•
•
Installation
Diagram
4”
80”
24”
24”
12”
If wall mount condenser bracket is used, rear clerance can be reduced to 6”
Dual (2) Zone
Triple (3) Zone
Quad (4) Zone
Quint (5) Zone

Table 5.1
Table 5.2
Page 8 
Specications 5
Outdoor Unit
Specications
Number of units that can be used
together Connected units 1 to 5 units
Compressor stop/start frequency Stop time 3 min or more
voltage uctuation within ±10% of rated voltage
Power source voltage voltage drop during start within ±15% of rated voltage
interval phase unbalance within ± 3% of rated voltage
2 Zone 3 Zone
Max. length for all rooms 40/130 60/200
Max. length for one indoor unit 25/80 30/100
Max. height dierent between indoor and outdoor unit 15/50 15/50
Max. height dierent between indoor units 10/33 10/33
4 Zone 5 Zone
80/260 80/260
35/115 35/115
15/50 15/50
10/33 10/33
Unit: m/ft.
10m(33ft)
When installing multiple indoor units to work with a single outdoor unit, ensure that the length of the
refrigerant pipe and the drop height between the indoor and outdoor units meet the requirements
illustrated in the following diagram:
Indoor unit
Indoor unit
Indoor unit
Outdoor unit
15m(50ft)
15m(50ft)
Max.Height dierence

Page 9 
Outdoor Unit
Installation
Outdoor Unit Installation
Outdoor Unit Installation Instructions
Step 1: Select installation location.
The outdoor unit should be installed at a location
in accordance with the following guidelines:
Place the outdoor unit as close to the indoor
units as possible.
Ensure that there is enough room for
installation and maintenance.
The air inlet and outlet must not be
obstructed or exposed to strong winds.
Ensure the location of the unit will not be
subject to snowdrifts, accumulation of leaves,
or other seasonal debris. If possible, provide
an awning for the unit. Ensure the awning
does not obstruct the airflow.
The installation area must be dry and well
ventilated.
There must be enough room to install the
connecting pipes and cables, and to access
them for maintenance.
The area must be free of combustible gases
and chemicals.
The pipe length between the outdoor and
indoor unit may not exceed the maximum
allowable pipe length.
If possible, DO NOT install the unit where it
is exposed to direct sunlight.
If possible, make sure the unit is located far
away from your neighbors’ property so that
the noise from the unit will not disturb them.
If the location is exposed to strong winds (for
example: near a seaside), the unit must be
placed against the wall to shelter it from the
wind. If necessary, use an awning.
(See Fig. 6.1 & 6.2)
Install the indoor and outdoor units, cables
and wires at least 1 meter from televisions or
radios to prevent static or image distortion.
Depending on the radio waves, a 1m (3’)
distance may not be enough to eliminate all
interference.
Strong wind
Strong wind
Strong wind
Fig. 6.1
Fig. 6.2
Step 2: Install outdoor unit.
Fix the outdoor unit with anchor bolts (M10 or 3/8”)
>60cm / 24”
Fix with bolts
CAUTION
• Be sure to remove any obstacles that
may block air circulation.
• Make sure you refer to length
specifications to ensure there is
enough room for installation and
maintenance.
Fig. 6.3
6
√
√
√
√
√
√
√
√
√
√
√
√
(Alternatively, use condenser
Wall Mounting Brackets)
Minimum clearance
needed in front of the
unit is 2m (80 Inches)

Page 10 
Table 6.1: Length Specications of Split Type
Outdoor Unit (unit: mm/inch)
Split Type Outdoor Unit
(Refer to Fig 6.4, 6.5, 6.6, 6.10 and Table 6.1)
Outdoor Unit
Installation
Fig. 6.6
Fig. 6.7
Fig. 6.5
A
L
B
D
W
H
H
W
H
Fig. 6.4
Outdoor Unit Dimensions
W x H x D
Mounting Dimensions
Distance A Distance B
946x810x420 (37-1/4x31-7/8x16-1/2) 673 (26-1/2) 403 (15-7/8)
952x1333x415 (37-1/2x52-1/2x16-1/4) 634 (25) 404 (15-7/8)
845x702x363 (33-1/4x27-5/8/14-3/8) 540 (21-1/4) 350 (13-3/4)
300 cm / 120” or more
A
60 cm / 24”
or more
150 cm / 60”
or more
25 cm / 10”
or more
25 cm / 10”
or more
Installation in Rows (Parallel or Serial)
L ≤H L ≤1/2H
LA
25 cm / 10” or more
1/2H < L ≤H 30 cm / 12” or more
L >H Cannot be installed
Table 6.2 The relations between H, A, and L
are as follows:
946x810x420 (37-1/4x31-7/8x16-1/2) 673 (26-1/2) 403 (15-7/8)
2 Zone (Dual Multi Split)
3 Zone (Triple Multi Split)
4 Zone (Quad Multi Split)
5 Zone (Quint Multi Split)