ACPro GMV-ND07PLS/A-T(U) User manual

AC Pro VRF
Indoor Units
Installation Guide

We reserve the right to correct any clerical errors.
Copyright 2018 AC pro.

Product Information
1 INSTALLATION 1
1.1 Installation Notice 1
1.2 Installation Key Points and Importance 1
2 INSTALLATION MATERIALS SECTION 2
2.1 Installation Notice 2
2.2 Condensate Water Pipe 3
2.3 Insulation Material 3
2.4 Communication Cable and Control Cable 3
2.5 Power Cable 4
2.6 Hanger Rod and Support 4
3 INSTALLATION OF INDOOR UNIT 4
3.1 Installation of Low Static Pressure Duct Type Indoor Unit 4
3.2 Installation of Four-way Cassette Type Indoor Unit 6
3.3 Installation of Wall-mounted Indoor Unit 8
3.4 Installation of ConsoleType Indoor Unit 9
3.5 Installation of High Static Pressure Duct Type Indoor Unit 12
3.6 Installation of Two-way CassetteType Indoor Unit 15
3.7 Installation of Floor Ceiling Type Indoor Unit 17
3.8 Installation of Compact Four-way CassetteType Indoor Unit 19
3.9 Installation of Super High Static Pressure Duct Type Indoor Unit 21
3.10 Installation of Air Handler type Indoor Unit 23
3.11 Installation of AHU-KIT type Indoor Unit 25
4 INSTALLATION OF CONNECTION PIPE 26
4.1 Flaring Process 27
4.2 Pipe Bending 27
4.3 Indoor Pipe Connection 27
5 INSTALLATION OF DRAIN PIPE 28
5.1 Precautions When Doing the Piping Work 28
5.2 Installing the Drain Pipes 29
5.3 Precautions When Doing Riser Piping Work 30
5.4 Testing of Drain Piping 31
6 MALFUNCTION LIST 32
6.1 Malfunction List for the Wired Controller 32
6.2 Display of Light Board (Only forTwo-way CassetteType Indoor
Unit)
32
7 AFTER-SALES EMERGENCY MEASURES 33
8 WIRING DIAGRAM 33
8.1 Low Static Pressure Duct Type Indoor Unit 33
8.2 Four-way CassetteType Indoor Unit 34
8.3 Wall Mounted Type Indoor Unit 34
8.4 Console Type Indoor Unit 35
8.5 High Static Pressure Duct Type Indoor Unit 35
8.6 Two-way CassetteType Indoor Unit 36
8.7 Floor Ceiling Type Indoor Unit 37
8.8 Fresh Air Processing Indoor Unit 38
8.9 Compact Four-way CassetteType Indoor Unit 39
Table of Contents

8.10 Super High Static Pressure Duct Type Indoor Unit 40
8.11 Air Handler type Indoor Unit 42
8.12 AHU-KIT type Indoor Unit 42
9 DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN
PARTS
43
9.1 Low Static Pressure Duct Type Indoor Unit 43
9.2 Four-way CassetteType Indoor Unit 44
9.3 Wall Mounted Type Indoor Unit 46
9.4 Console Type Indoor Unit 48
9.5 High Static Pressure Duct Type Indoor Unit 49
9.6 Two-way CassetteType Indoor Unit 50
9.7 Floor Ceiling Type Indoor Unit 52
9.8 Compact Four-way CassetteType Indoor Unit 53
9.9 Super High Static Pressure Duct Type Indoor Unit 58
9.10 Air Handler type Indoor Unit 59

1
1 INSTALLATION
Personnel and property safety are highly concerned during the entire installation process.
Installation implementation must abide by relevant national safety regulations to ensure personnel and
property safety.
All personnel involved in the installation must attend safety education courses and pass
corresponding safety examinations before installation. Only qualified personnel can attend the
installation. Relevant personnel must be held responsible for any violation of the regulation.
VRF air conditioning systems use refrigerant, instead of other agent, to directly evaporate to carry
out the system heat. High level of pipe cleanness and dryness is required in the system. Since various
pipes need to be prepared and laid out onsite, carelessness or mal-operation during installation may
leave impurities, water, or dust inside refrigerant pipes. If the design fails to meet the requirement, various
problems may occur in the system or even lead to system breakdown.
Problems that usually occur during installation are as follows:
1.1 Installation Notice
1.2 Installation Key Points and Importance
No. Installation Problem Possible Consequence
1Dust or impurities enter the
refrigeration system.
Pipes are more likely to be blocked; air conditioning performance is reduced;
compressor wear is increased or even hinder the normal operation of the system
and burn the compressor.
2
Nitrogen is not filled into the refrigerant
pipe or insufficient Nitrogen is filled
before welding.
Pipes are more likely to be blocked; air conditioning performance is reduced;
compressor wear is increased or even hinder the normal operation of the system
and burn the compressor.
3The vacuum degree in the refrigerant pipe is
insufficient.
The refrigeration performance is reduced.The system fails to keep normal
operation due to frequent protection measures. When the problem getting serious,
compressor and other major components can be damaged.
4 Water enters the refrigeration system. Copper plating may appear on the compressor and reduce the compressor efficiency
with abnormal noise generated; failures may occur in the system due to ice plug.
5The refrigerant pipe specifications do not
meet the configuration requirements.
Smaller configuration specifications can increase the system pipe resistance and
affect the cooling performance; larger configuration specifications are waste of
materials and can also reduce the cooling performance.
6 Refrigerant pipe is blocked.
The cooling performance is reduced; in certain cases, it may cause long -term
compressor operating under overheat conditions; the lubricating effect can be
affected and the compressor may be burnt if impurities were mixed with the
lubricating oil.
7 Refrigerant pipe exceeds the limit. The loss in pipe is considerable and the unit energy efficiency decreases, which
are harmful for long-term running of the system.
8Incorrect amount of refrigerant is filled.
The system cannot correctly control the flow allocation; the compressor may be
operating under over-heating environment or running when the refrigerant flows
back to the compressor.
9 The refrigerant pipe leaks.
Insufficient refrigerant circulating in the system decreases the cooling performance
of the air conditioner. Long-term operation under such circumstance may cause an
overheating compressor or even damage the compressor.
10 Water drainage from the condensate water
pipe is not smooth.
Residual water in IDUs can affect the normal operation of the system.The
possible water leakage can damage the IDU’s decoration.

2
2 INSTALLATION MATERIALS SECTION
Understand the special requirement (if any) for unit installation before implementation to ensure
installation quality. Relevant installers must have corresponding engineering construction qualifications.
Special type operators involved in the engineering implementation, such as welders, electricians,
and refrigeration mechanics must have relevant operating licenses and are accredited with vocational
qualification certification.
The materials, equipment and instruments used during air conditioning engineering construction
must have certifications and test reports. Products with fireproof requirements must be provided with
fireproof inspection certificates and must meet national and relevant compulsory standards. If
environmentally-friendly materials are to be used as required by customers, all such materials must meet
national environmental protection requirement and be provided with relevant certificates.
(1) Material requirement: Dephosphorization drawing copper pipe for air conditioners;
(2) Appearance requirement: The inner and outer surface of pipe should be smooth without pinhole,
crack, peeling, blister, inclusion, copper powder, carbon deposition, rust, dirt or severe oxide film, and
without obvious scratch, pit, spot and other defects.
(3) Test report: Certifications and quality test reports must be provided.
(4) The tensile strength must be at least 529 lbs.
2.1 Installation Notice
No. Installation Problem Possible Consequence
11
The ratio of slop for
condensate water pipe is
insufficient or the
condensate water pipe is
incorrectly connected.
Reverse slop or inconsistent connection of condensate water pipe can hinder the
smooth drainage and cause leakage of the IDU.
12 The air channel isimproperly fixed. The air channel will deform; vibration and noise occur during unit operating.
13 The guide vane of air channel is not reason-
ably manufactured.
Uneven air quantity allocation reduces the overall performance of the air
conditioner.
14
The refrigerant pipe or condensate water
pipe does not meet the
insulation requirement.
Water can easily condensate and drip to damage the indoor decoration, or even
trigger the protection mode of system due to overheating operation.
15 The installation space for IDU is insufficient. Since there is a lack of space for maintenance and checking, indoor decoration
might need to be damaged during such operation.
16
The IDU or the location of the air outlet or
return air inlet is not designed
reasonably.
The air outlet or return air inlet may be short-circuited, thus affecting the air
conditioning performance.
17 The ODU is improperly
installed.
The ODU is difficult to be maintained; unit exhaust is not smooth, which reduces
the heat exchanging performance or even prevent the system from normal
operation; in addition, the cold and hot air for heat exchange and the noise may
annoy people in surrounding areas.
18 Power cables are incorrectly provided. Unit components may be damaged and potential safety hazard may occur.
19
Control communication cables are
incorrectly provided or improperly
connected.
The normal communication in the system fails or the control over IDUs and ODUs
turn in a mess.
20 Control communication cables are not
properly protected.
The communication cables are short-circuited or disconnected, and the unit
cannot be started up due to communication failure.

3
(5) Specifications requirement
(6) After the inner part of the copper pipe is cleaned and dried, the inlet and outlet must be sealed
tightly by using pipe caps, plugs or adhesive tapes.
(1) Pipes that can be used for air conditioner drainage include: water supplying UPVC pipe, PP-R
pipe, PP-C pipe, and HDG steel pipe;
(2) All relevant certificates and quality test reports are provided.
(3) Requirements for specifications and wall thickness.
Water supplying UPVC pipe:
Φ1.26in×0.08in, Φ1.57in×0.08in,
Φ1.97in×0.10in. HDG steel pipe:
Φ0.98in×0.128in, Φ1.26in×0.13in.
Φ1.57in×0.14in, Φ1.97in×0.14in.
(1) Rubber foam insulation material;
(2) Flame retardancy level: B1 or higher;
(3) Refractoriness: at least 248°F;
(4) The insulation thickness of condensate water pipe: at least 3/8in;
(5) When the diameter of copper pipe is equal to or greater than Φ5/8in, the thickness of insulation
material should be at least 3/4in; when the diameter of copper pipe is less than
5/8in, the thickness of insulation material should be at least 5/8in.
NOTICE! For air conditioning units installed in places with strong electromagnetic interference,
shielded wire must be used as the communication cables of the IDU and wired controller, and shielded
twisted pairs must be used as the communication cables between IDUs and between the IDU and ODU.
Communication cable selection for ODU and IDUs.
R410A Refrigerant System
OD (in) Wall Thickness (in) Model
Φ1/4 ≥0.03 O
Φ3/8 ≥0.03 O
Φ1/2 ≥0.03 O
Φ5/8 ≥0.04 O
Φ3/4 ≥0.04 1/2 H
2.2 Condensate Water Pipe
2.3 Insulation Material
2.4 Communication Cable and Control Cable
Material Type
Total Length L of
Communication Cable
between Indoor Unit
and
Indoor (Outdoor) Unit
Wire size
AWG
Material
Standard Remarks
Light/Ordinary
polyvinyl chloride
sheathed cord.
(60227 IEC 52
/60227 IEC 53)
L≤3280-5/6ft
≥
2×AWG
18
IEC
60227-5
1. If the wire diameter is enlarged to
6.56×3.28 ft2, the total communication
line length can reach 4921.26 ft.
2. The cord shall be Circular cord (the cores
shall be twisted together).
3. If unit is installed in places with intense
magnetic field or strong interference, it is
necessary to use shielded wire.

4
Only copper conductors can be used as power cables.The copper conductors must meet relevant
national standard and satisfy the carrying capacity of unit.
(1) Hanger rod: M8 or M10;
(2) U-steel: 14# or above;
(3) Angle steel: 1-1/6in × 1-1/6in × 1/8in or above;
(4) Round steel: Φ4/10in or above
Communication cable selection for IDU and wired controller.
2.5 Power Cable
2.6 Hanger Rod and Support
Material Type
Total Length L of
Communication
Cable
between Indoor
Unit and Indoor
(Outdoor) Unit
Wire size
AWG
Material
Standard Remarks
Light/Ordinary
polyvinyl chloride
sheathed cord.
(60227 IEC 52
/60227 IEC 53)
L≤820-1/5ft (2×AWG18~
2×AWG16)
IEC
60227-5
1.Total length of communication line
can’t exceed 820.21ft.
2. The cord shall be Circular cord
(the cores shall be twisted together).
3. If unit is installed in places with
intense magnetic field or strong
interference, it is necessary to use
shielded wire.
3 INSTALLATION OF INDOOR UNIT
The following diagram is applicable for units with the cooling capacity ranging from 7k Btu/h to
22kBtu/h.
3.1 Installation of Low Static Pressure Duct Type Indoor Unit
3.1.1 Outline and Installation Dimension
Multi Variable Air Conditioners Indoor Unit
74
Communication cable selection for IDU and wired controller
Material type
Total length of
communication line
between indoor unit and
wired controller
Wire size
AWG
Material
Standard
Remarks
Light/Ordinary
polyvinyl chloride
sheathed cord.
(60227 IEC 52
/60227 IEC 53)
L≤820-1/5ft
(2×AWG18~
2×AWG16)
IEC
60227-5
①. Total length of communication line
can't exceed 820.21ft.
②. The cord shall be Circular cord
(the cores shall be twisted together).
③. If unit is installed in places with
intense magnetic field or strong
interference, it is necessary to use
shielded wire.
2.5 Power Cable
Only copper conductors can be used as power cables. The copper conductors must meet relevant
national standard and satisfy the carrying capacity of unit.
2.6 Hanger Rod and Support
(1) Hanger rod: M8 or M10;
(2) U-steel: 14# or above;
(3) Angle steel: 1-1/6in × 1-1/6in × 1/8in or above;
(4) Round steel: Φ4/10in or above
3 Installation of Indoor Unit
3.1 Installation of Low Static Pressure Duct Type Indoor Unit
3.1.1 Outline and Installation Dimension
The following diagram is applicable for units with the cooling capacity ranging from 7k Btu/h to
22kBtu/h.
Electric box
Liquid pipe Gas pipe
Drain pipe

5
Model A B C D E F G H I
GMV-ND07PLS/A-T(U)
GMV-ND09PLS/A-T(U)
GMV-ND12PLS/A-T(U)
29-3/16 19-5/16 27-1/2 24-1/4 7-7/8 4-3/4 20-13/16 6-5/16 22-13/16
GMV-ND14PLS/A-T(U) 37-1/16 19-5/16 35-3/8 24-1/4 7-7/8 4-3/4 28-11/16 6-5/16 30-11/16
GMV-ND18PLS/A-T(U)
GMV-ND22PLS/A-T(U) 44-15/16 19-5/16 43-1/4 24-1/4 7-7/8 4-3/4 36-9/16 6-5/16 38-9/16
The following diagram is applicable for units with the cooling capacity ranging from 7k Btu/h to
22kBtu/h.
(1) Installation dimension (refer to the outline dimension in the figure)
(2) Installation foundation
Make sure the top hanging rod, ceiling and building structure have sufficient strength to withstand
the weight of unit.
(3) Installation site and environment
Keep the unit from insolation and rain;
Keep the unit from fire, flammable objects, corrosive gap or exhaust gas;
Please reserve ventilation space;
Please reserve sufficient space for maintenance;
Please take proper measures to reduce noise and vibration.
(4) Electrical installation of unit
All electrical installation must be done by professionals per national and local laws and regulations.
The unit must be grounded reliably. Please connect wire per the wiring diagram on the unit.
3.1.2 Installation Space
3.1.3 Installation Notice
Multi Variable Air Conditioners Indoor Unit
75
The following table lists the detailed dimensions.
Unit: in
Item
Model
A B C D E F G H I
GMV-ND07PLS/A-T(U)
GMV-ND09PLS/A-T(U)
GMV-ND12PLS/A-T(U)
29-3/16
19-5/16
27-1/2 24-1/4 7-7/8 4-3/4 20-13/16 6-5/16 22-13/16
GMV-ND14PLS/A-T(U)
37-1/16 19-5/16 35-3/8 24-1/4 7-7/8 4-3/4 28-11/16 6-5/16 30-11/16
GMV-ND18PLS/A-T(U)
GMV-ND22PLS/A-T(U)
44-15/16 19-5/16 43-1/4 24-1/4 7-7/8 4-3/4 36--9/16 6-5/16 38-9/16
3.1.2 Installation Space
Unit: in.
＞ 11-3/4 ＞
5-7/8
3.1.3 Installation Notice
(1) Installation dimension (refer to the outline dimension in the figure)
(2) Installation foundation
Make sure the top hanging rod, ceiling and building structure have sufficient strength to withstand
the weight of unit.
(3) Installation site and environment
Keep the unit from insolation and rain;
Keep the unit from fire, flammable objects, corrosive gap or exhaust gas;
Please reserve ventilation space;
Please reserve sufficient space for maintenance;
Please take proper measures to reduce noise and vibration.
(4) Electrical installation of unit
All electrical installation must be done by professionals per national and local laws and regulations.
The unit must be grounded reliably. Please connect wire per the wiring diagram on the unit.
Ceiling
Wall Wall

6
Model A B C D E G H
GMV-ND07T/A-T(U) 37-3/8 35 33 26-3/4 30-3/4 2-1/2 8-1/4
GMV-ND09T/A-T(U)
GMV-ND12T/A-T(U)
GMV-ND15T/A-T(U)
GMV-ND18T/A-T(U)
GMV-ND24T/A-T(U)
37-3/8 35 33 26-3/4 30-3/4 2-1/2 10-1/4
GMV-ND30T/A-T(U)
GMV-ND36T/A-T(U)
GMV-ND42T/A-T(U)
GMV-ND48T/A-T(U)
37-3/8 35 33 26-3/4 30-3/4 2-1/2 13-3/8
3.1.4 Selection of Air Switch and Power Cord
3.2 Installation of Four-way CassetteType Indoor Unit
3.2.1 Requirements for External Dimensions and Installation and
Maintenance Spaces
Model Power Cord Size Air Switch
capacity (A)
Minimum Sectional Area
of Ground Wire AWG
Minimum Sectional Area
of Power Cord AWG
GMV-ND07PLS/A-T(U)
208/230V/60Hz 15 AWG18 AWG18
GMV-ND09PLS/A-T(U)
GMV-ND12PLS/A-T(U)
GMV-ND14PLS/A-T(U)
GMV-ND18PLS/A-T(U)
GMV-ND22PLS/A-T(U)
76
Multi Variable Air Conditioners Indoor Unit
3.1.4 Selection of Air Switch and Power Cord
≥ 59t
≥ 59
Model Power Cord Size
Air Switch
capacity
(A)
Minimum Sectional
Area of
Ground Wire
AWG
Minimum Sectional
Area of Power
Cord
AWG
GMV-ND07PLS/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND09PLS/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND12PLS/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND14PLS/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND18PLS/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND22PLS/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
3.2 Installation of Four-way Cassette Type Indoor Unit
3.2.1 Requirements for External Dimensions and Installation and
Maintenance Spaces
.
UNITS:
inches
Unit: in
Model A B C D E G H
GMV-ND07T/A-T(U) 37-3/8 35 33 26-3/4 30-3/4 2-1/2 8-1/4
GMV-ND09T/A-T(U)
GMV-ND12T/A-T(U)
GMV-ND15T/A-T(U)
GMV-ND18T/A-T(U)
GMV-ND24T/A-T(U)
37-3/8 35 33 26-3/4 30-3/4 2-1/2 10-1/4
GMV-ND30T/A-T(U)
GMV-ND36T/A-T(U)
GMV-ND42T/A-T(U)
GMV-ND48T/A-T(U)
37-3/8 35 33 26-3/4 30-3/4 2-1/2 13-3/8
3.2.2 Installation Notice
◆This indoor unit may be installed on ceilings up to 137-3/4in in height (for 30~48k units:157-
≥
98
3/8
Unit: In.

7
This indoor unit may be installed on ceilings up to 137-3/4in in height (for 30~48k units:157-
1/2in). Install the unit higher than 98-3/8in to avoid accidental touching.
 The unit shall be installed by the professional personnel according to this
installation instruction to ensure proper use.
 Please contact the local AC Pro appointed service center before installation. Any malfunction
caused by the unit that is not installed by the AC Pro appointed service center would probably not be
dealt with on time because of the inconvenience of the business contact.
 It should be guided under the professional personnel when the air conditioner unit is moved to
another place.
 The unit shall be installed in accordance with national standards or local regulations.
 Only qualified personnel can carry out installation work, please contact with local dealer before
installation.
 Make sure all the installation work completed before energizing.
The appliances are not accessible to the public.
3.2.2 Installation Notice

8
3.2.3 Selection of Air Switch and Power Cord
3.3 Installation of Wall-mounted Indoor Unit
3.3.1 Outline and Installation Dimension
Model Power Cord Size Air Switch
capacity (A)
Minimum Sectional Area
of Ground Wire AWG
Minimum Sectional Area
of Power Cord AWG
GMV-ND07T/A-T(U)
208/230V/60Hz 15 AWG18 AWG18
GMV-ND09T/A-T(U)
GMV-ND12T/A-T(U)
GMV-ND15T/A-T(U)
GMV-ND18T/A-T(U)
GMV-ND24T/A-T(U)
GMV-ND30T/A-T(U)
GMV-ND36T/A-T(U)
GMV-ND42T/A-T(U)
GMV-ND48T/A-T(U)
78
Multi Variable Air Conditioners Indoor Unit
3.2.3 Selection of Air Switch and Power Cord
Model Power Cord Size
Air Switch capacity
(A)
Minimum Sectional
Area of
Ground Wire
AWG
Minimum Sectional
Area of Power
Cord
AWG
GMV-ND07T/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND09T/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND12T/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND15T/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND18T/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND24T/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND30T/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND36T/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND42T/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND48T/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
3.3 Installation of Wall-mounted Indoor Unit
3.3.1 Outline and Installation Dimension
Unit: in
Model W H D
GMV-N07G/A3A-D(U)
GMV-N09G/A3A-D(U)
33-1/5 10-5/6 7
GMV-N12G/A3A-D(U)
GMV-N18G/A3A-D(U)
37 11-3/4 7-7/8
GMV-N24G/A3A-D(U) 39-2/3 12-5/9 8-5/7
Model W H D
GMV-N07G/A3A-D(U)
GMV-N09G/A3A-D(U) 33-1/5 10-5/6 7
GMV-N12G/A3A-D(U)
GMV-N18G/A3A-D(U) 37 11-3/4 7-7/8
GMV-N24G/A3A-D(U) 39-2/3 12-5/9 8-5/7
Unit: In.

9
(1) Installation dimension (refer to the outline dimension in the figure shown above)
(2) Installation foundation
Make sure the top hanger has sufficient strength to withstand the weight of unit.
(3) Installation site and environment
Keep the unit from insolation and rain;
Water can be drained from drainage pipe conveniently;
Keep the unit from fire, flammable objects, corrosive gap or exhaust gas;
There can’t be any obstacle at air inlet and air outlet to keep good ventilation; Please
reserve sufficient space for maintenance;
Please take proper measures to reduce noise and vibration.
All electrical installation must be done by professionals per national and local laws and regulations.
The unit must be grounded reliably per related requirements.
Please connect wire per the wiring diagram on the unit.
3.3.2 Installation Space
3.3.3 Installation Notice
3.3.4 Electrical Installation of Unit
3.4 Installation of ConsoleType Indoor Unit
3.4.1 Outline and Installation Dimension
79
Multi Variable Air Conditioners Indoor Unit
3.3.2 Installation Space
3.3.3 Installation Notice
(1) Installation dimension (refer to the outline dimension in the figure shown above)
(2) Installation foundation
Make sure the top hanger has sufficient strength to withstand the weight of unit.
(3) Installation site and environment
Keep the unit from insolation and rain;
Water can be drained from drainage pipe conveniently;
Keep the unit from fire, flammable objects, corrosive gap or exhaust gas;
There can’t be any obstacle at air inlet and air outlet to keep good ventilation; Please
reserve sufficient space for maintenance;
Please take proper measures to reduce noise and vibration.
3.3.4 Electrical Installation of Unit
All electrical installation must be done by professionals per national and local laws and regulations.
The unit must be grounded reliably per related requirements.
Please connect wire per the wiring diagram on the unit.
3.4 Installation of Console Type Indoor Unit
3.4.1 Outline and Installation Dimension
Location for securing the installation pane Schematic drawing of hooks
＞118-1/9
＞
6
＞
98-3/7
79
Multi Variable Air Conditioners Indoor Unit
3.3.2 Installation Space
3.3.3 Installation Notice
(1) Installation dimension (refer to the outline dimension in the figure shown above)
(2) Installation foundation
Make sure the top hanger has sufficient strength to withstand the weight of unit.
(3) Installation site and environment
Keep the unit from insolation and rain;
Water can be drained from drainage pipe conveniently;
Keep the unit from fire, flammable objects, corrosive gap or exhaust gas;
There can’t be any obstacle at air inlet and air outlet to keep good ventilation; Please
reserve sufficient space for maintenance;
Please take proper measures to reduce noise and vibration.
3.3.4 Electrical Installation of Unit
All electrical installation must be done by professionals per national and local laws and regulations.
The unit must be grounded reliably per related requirements.
Please connect wire per the wiring diagram on the unit.
3.4 Installation of Console Type Indoor Unit
3.4.1 Outline and Installation Dimension
Location for securing the installation pane Schematic drawing of hooks
＞118-1/9
＞
6
＞
98-3/7

10
(1) Installation dimension (refer to the outline dimension in the figure)
(2) Installation foundation
Make sure building structure have sufficient strength to withstand the weight of unit.
(3) Installation site and environment
Keep the unit from insolation and rain;
Keep the unit from fire, flammable objects, corrosive gap or exhaust gas;
Please reserve ventilation space;
Please reserve sufficient space for maintenance;
Please take proper measures to reduce noise and vibration.
(4) Electrical installation of unit
All electrical installation must be done by professionals per national and local laws and regulations.
The unit must be grounded reliably. Please connect wire per the wiring diagram on the unit.
3.4.2 Installation Space
3.4.3 Installation Notice
Exposed Half Concealed Concealed
Floor Installation Wall Installation
Multi Variable Air Conditioners Indoor Unit
3.4.2 Installation Space
80
3.4.3 Installation Notice
(1) Installation dimension (refer to the outline dimension in the figure)
(2) Installation foundation
Make sure building structure have sufficient strength to withstand the weight of unit.
(3) Installation site and environment
Keep the unit from insolation and rain;
Keep the unit from fire, flammable objects, corrosive gap or exhaust gas;
Please reserve ventilation space;
Please reserve sufficient space for maintenance;
Please take proper measures to reduce noise and vibration.
(4) Electrical installation of unit
All electrical installation must be done by professionals per national and local laws and regulations.
The unit must be grounded reliably. Please connect wire per the wiring diagram on the unit.
Multi Variable Air Conditioners Indoor Unit
3.4.2 Installation Space
80
3.4.3 Installation Notice
(1) Installation dimension (refer to the outline dimension in the figure)
(2) Installation foundation
Make sure building structure have sufficient strength to withstand the weight of unit.
(3) Installation site and environment
Keep the unit from insolation and rain;
Keep the unit from fire, flammable objects, corrosive gap or exhaust gas;
Please reserve ventilation space;
Please reserve sufficient space for maintenance;
Please take proper measures to reduce noise and vibration.
(4) Electrical installation of unit
All electrical installation must be done by professionals per national and local laws and regulations.
The unit must be grounded reliably. Please connect wire per the wiring diagram on the unit.
Multi Variable Air Conditioners Indoor Unit
3.4.2 Installation Space
80
3.4.3 Installation Notice
(1) Installation dimension (refer to the outline dimension in the figure)
(2) Installation foundation
Make sure building structure have sufficient strength to withstand the weight of unit.
(3) Installation site and environment
Keep the unit from insolation and rain;
Keep the unit from fire, flammable objects, corrosive gap or exhaust gas;
Please reserve ventilation space;
Please reserve sufficient space for maintenance;
Please take proper measures to reduce noise and vibration.
(4) Electrical installation of unit
All electrical installation must be done by professionals per national and local laws and regulations.
The unit must be grounded reliably. Please connect wire per the wiring diagram on the unit.
Multi Variable Air Conditioners Indoor Unit
3.4.2 Installation Space
80
3.4.3 Installation Notice
(1) Installation dimension (refer to the outline dimension in the figure)
(2) Installation foundation
Make sure building structure have sufficient strength to withstand the weight of unit.
(3) Installation site and environment
Keep the unit from insolation and rain;
Keep the unit from fire, flammable objects, corrosive gap or exhaust gas;
Please reserve ventilation space;
Please reserve sufficient space for maintenance;
Please take proper measures to reduce noise and vibration.
(4) Electrical installation of unit
All electrical installation must be done by professionals per national and local laws and regulations.
The unit must be grounded reliably. Please connect wire per the wiring diagram on the unit.
Multi Variable Air Conditioners Indoor Unit
3.4.2 Installation Space
80
3.4.3 Installation Notice
(1) Installation dimension (refer to the outline dimension in the figure)
(2) Installation foundation
Make sure building structure have sufficient strength to withstand the weight of unit.
(3) Installation site and environment
Keep the unit from insolation and rain;
Keep the unit from fire, flammable objects, corrosive gap or exhaust gas;
Please reserve ventilation space;
Please reserve sufficient space for maintenance;
Please take proper measures to reduce noise and vibration.
(4) Electrical installation of unit
All electrical installation must be done by professionals per national and local laws and regulations.
The unit must be grounded reliably. Please connect wire per the wiring diagram on the unit.
Multi Variable Air Conditioners Indoor Unit
3.4.2 Installation Space
80
3.4.3 Installation Notice
(1) Installation dimension (refer to the outline dimension in the figure)
(2) Installation foundation
Make sure building structure have sufficient strength to withstand the weight of unit.
(3) Installation site and environment
Keep the unit from insolation and rain;
Keep the unit from fire, flammable objects, corrosive gap or exhaust gas;
Please reserve ventilation space;
Please reserve sufficient space for maintenance;
Please take proper measures to reduce noise and vibration.
(4) Electrical installation of unit
All electrical installation must be done by professionals per national and local laws and regulations.
The unit must be grounded reliably. Please connect wire per the wiring diagram on the unit.

11
Live the sensor securing plate, remove the front metal plate cover, and connect the wire to the
terminal board.
(1) Open the cover of electric box of indoor unit.
(2) Lead the communication line across the rubber ring.
(3) Connect the communication line to terminal D1 and D2 on the wiring board of indoor unit.
(4) Secure the communication line with the wire clamp on the electric box. Pull wires to make sure
that they are securely latches up, then retain wires with wire retainer.
(1) The power connection cord has been inserted on the mainboard through the piping hole of the
chassis. Please connect the power connection cord with the breaker. If the power cord is not long
enough, please prolong it with terminal block.
(2) Reinstall the wiring cover on the original place and tighten the bolt;
(3) Recover the surface panel.
3.4.4 Electrical Installation of Unit
Multi Variable Air Conditioners Indoor Unit
81
3.4.4 Electrical Installation of Unit
Live the sensor securing plate, remove the front metal plate cover, and connect the wire to the
terminal board.
(1) Open the cover of electric box of indoor unit.
(2) Lead the communication line across the rubber ring.
(3) Connect the communication line to terminal D1 and D2 on the wiring board of indoorunit.
(4) Secure the communication line with the wire clamp on the electric box. Pull wires to make sure
that they are securely latches up, then retain wires with wire retainer.
①. The power of every indoor unit should be unity power supply.
②. Do not use tapped wires, stranded
overheating, electrical shock, or fire.
wires, extension cords, or starburst connections, as they may cause
③. Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc.,
from the terminal block.) Doing so may cause electric shock or fire.)
(1) The power connection cord has been inserted on the mainboard through the piping hole of the
chassis. Please connect the power connection cord with the breaker. If the power cord is not long
enough, please prolong it with terminal block.
(2) Reinstall the wiring cover on the original place and tighten the bolt;
(3) Recover the surface panel.
WARNING
The power of every indoor unit should be unity power supply.
Do not use tapped wires, stranded wires, extension cords, or starburst connections, as they may cause overheating, electrical shock, or
fire.
Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc.,
from the terminal block.) Doing so may cause electric shock or fire.)
Multi Variable Air Conditioners Indoor Unit
81
3.4.4 Electrical Installation of Unit
Live the sensor securing plate, remove the front metal plate cover, and connect the wire to the
terminal board.
(1) Open the cover of electric box of indoor unit.
(2) Lead the communication line across the rubber ring.
(3) Connect the communication line to terminal D1 and D2 on the wiring board of indoorunit.
(4) Secure the communication line with the wire clamp on the electric box. Pull wires to make sure
that they are securely latches up, then retain wires with wire retainer.
①. The power of every indoor unit should be unity power supply.
②. Do not use tapped wires, stranded
overheating, electrical shock, or fire.
wires, extension cords, or starburst connections, as they may cause
③. Do not use locally purchased electrical parts inside the product. (Do not branch the power for the drain pump, etc.,
from the terminal block.) Doing so may cause electric shock or fire.)
(1) The power connection cord has been inserted on the mainboard through the piping hole of the
chassis. Please connect the power connection cord with the breaker. If the power cord is not long
enough, please prolong it with terminal block.
(2) Reinstall the wiring cover on the original place and tighten the bolt;
(3) Recover the surface panel.

12
The following diagram is applicable for units with the cooling capacity ranging from 18 to 48 kBtu/h.
Unit: In.
3.4.5 Selection of Air Switch
3.5 Installation of High Static Pressure Duct Type Indoor Unit
3.5.1 Outline and Installation Dimension
Model Power Supply Specification Circuit Breaker Capacity/A
GMV-ND07C/A-T(U)
208-230V~60Hz 6
GMV-ND09C/A-T(U)
GMV-ND12C/A-T(U)
GMV-ND18C/A-T(U)
Multi Variable Air Conditioners Indoor Unit
82
3.4.5 Selection of Air Switch
Mode Power Supply
Specification
Circuit Breaker
Capacity/A
GMV-ND07C/A-T(U) 208-230V~60Hz
6
GMV-ND09C/A-T(U) 208-230V~60Hz
6
GMV-ND12C/A-T(U) 208-230V~60Hz
6
GMV-ND18C/A-T(U) 208-230V~60Hz
6
3.5 Installation of High Static Pressure Duct Type Indoor Unit
3.5.1 Outline and Installation Dimension
The following diagram is applicable for units with the cooling capacity ranging from 18 to 48 kBtu/h.
Below are dimensions of A, B, C, etc. for different models:
Unit: in
Model A B C D E F G H I J
GMV-ND18PHS/A-T(U)
43-3/8 20-3/8 32-1/4 45-5/8
50 22
39-1/2 6-1/4 9-1/4 10-1/2
GMV-ND24PHS/A-T(U)
GMV-ND30PHS/A-T(U)
39-3/4 29-1/2 32-1/4 43-7/8 48-3/8 30-1/2 38-1/2 6-1/4 9-1/8 11-3/8
GMV-ND36PHS/A-T(U)
GMV-ND42PHS/A-T(U)
GMV-ND48PHS/A-T(U)
Model A B C D E F G H I J
GMV-ND18PHS/A-T(U)
43-3/8 20-3/8 32-1/4 45-5/8 50 22 39-1/2 6-1/4 9-1/4 10-1/2
GMV-ND24PHS/A-T(U)
GMV-ND30PHS/A-T(U)
39-3/4 29-1/2 32-1/4 43-7/8 48-
3/8 30-1/2 38-1/2 6-1/4 9-1/8 11-3/8
GMV-ND36PHS/A-T(U)
GMV-ND42PHS/A-T(U)
GMV-ND48PHS/A-T(U)

13
The following diagram is applicable for units with the cooling capacity 70 to 96 kBtu/h.
Model: GMV-ND18PHS/A-T(U)~ GMV-ND48PHS/A-T(U)
Multi Variable Air Conditioners Indoor Unit
83
The following diagram is applicable for units with the cooling capacity 70 to 96 kBtu/h.
Below are dimensions of A, B, C, etc. for different models:
Unit: in
Model A B C D E F G H I
GMV-ND72H/A-T(U) 53-1/4 24-7/8 39 45-1/4 7-1/2 12-7/8 58-3/8 31-1/8 15-3/16
GMV-ND96PH/A-T(U) 61-1/8 27-3/4 39 53-1/8 7-1/2 15-7/8 66-3/8 34-1/4 17-3/4
3.5.2 Installation Space
Model：GMV-ND18PHS/A-T(U)~ GMV-ND48PHS/A-T(U)
Unit: in.
>98-3/8
Unit: In.
Unit: In.
Model A B C D E F G H I
GMV-ND72H/A-T(U) 53-1/4 24-7/8 39 45-1/4 7-1/2 12-7/8 58-3/8 31-1/8 15-3/16
GMV-ND96PH/A-T(U) 61-1/8 27-3/4 39 53-1/8 7-1/2 15-7/8 66-3/8 34-1/4 17-3/4
3.5.2 Installation of High Static Pressure Duct Type Indoor Unit
Multi Variable Air Conditioners Indoor Unit
83
The following diagram is applicable for units with the cooling capacity 70 to 96 kBtu/h.
Below are dimensions of A, B, C, etc. for different models:
Unit: in
Model A B C D E F G H I
GMV-ND72H/A-T(U) 53-1/4 24-7/8 39 45-1/4 7-1/2 12-7/8 58-3/8 31-1/8 15-3/16
GMV-ND96PH/A-T(U) 61-1/8 27-3/4 39 53-1/8 7-1/2 15-7/8 66-3/8 34-1/4 17-3/4
3.5.2 Installation Space
Model：GMV-ND18PHS/A-T(U)~ GMV-ND48PHS/A-T(U)
Unit: in.
>98-3/8

14
Model: GMV-ND72PH/A-T(U), GMV-ND96PH/A-T(U)
The unit shall be installed by the professional personnel according to this
installation instruction to ensure proper use.
Please contact the local AC Pro appointed service center before installation. Any malfunction caused
by the unit that is not installed by the AC Pro appointed service center would probably not be dealt with on
time because of the inconvenience of the business contact.
It should be guided under the professional personnel when the air conditioner unit is moved to
another place.
Installation of the unit must be in accordance with National Electric Codes and local regulations.
Improper installation will affect unit’s performance, so do not install the unit by yourself. Please
contact local dealer to arrange professional technicians for the installation.
Do not connect power until all installation work is finished.
If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a
similarly qualified person to avoid a hazard
Unit: In.
3.5.3 Installation Notice
3.5.4 Selection of Air Switch and Power Cord
Multi Variable Air Conditioners Indoor Unit
84
Model：GMV-ND72PH/A-T(U)、GMV-ND96PH/A-T(U)
Unit: in.
3.5.3 Installation Notice
◆ The unit shall be installed by the professional personnel according to this
installation instruction to ensure proper use.
◆Please contact the local AC Pro appointed service center before installation. Any malfunction caused
by the unit that is not installed by the AC Pro appointed service center would probably not be dealt with on
time because of the inconvenience of the business contact.
◆It should be guided under the professional personnel when the air conditioner unit is moved to
another place.
◆Installation of the unit must be in accordance with National Electric Codes and local regulations.
◆Improper installation will affect unit’s performance, so do not install the unit by yourself. Please
contact local dealer to arrange professional technicians for the installation.
◆Do not connect power until all installation work is finished.
◆If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a
similarly qualified person to avoid a hazard
3.5.4 Selection of Air Switch and Power Cord
Model Power Cord Size Air Switch capacity
(A)
Minimum Sectional
Area of Ground Wire
AWG
Minimum Sectional
Area of Power Cord
AWG
GMV-ND18PHS/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND24PHS/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND30PHS/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND36PHS/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND42PHS/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND48PHS/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND72PH/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
GMV-ND96PHS/A-T(U) 208/230V/60Hz 15 AWG18 AWG18
Nut with
Washe
r
>39-3/8 >22
Nut Spring
Washer
>98-3/8
Model Power Cord Size Air Switch capacity
(A)
Minimum Sectional
Area of Ground Wire
AWG
Minimum Sectional
Area of Power Cord
AWG
GMV-ND18PHS/A-T(U)
208/230V/60Hz 15 AWG18 AWG18
GMV-ND24PHS/A-T(U)
GMV-ND30PHS/A-T(U)
GMV-ND36PHS/A-T(U)
GMV-ND42PHS/A-T(U)
GMV-ND48PHS/A-T(U)
GMV-ND72PH/A-T(U)
GMV-ND96PHS/A-T(U)

15
3.6 Installation ofTwo-way CassetteType Indoor Unit
3.6.1 Outline and Installation Dimension
11.6.2 Installation Space
Multi Variable Air Conditioners Indoor Unit
85
3.6 Installation of Two-way Cassette Type Indoor Unit
3.6.1 Outline and Installation Dimension
Unit: in
Model Indoor unit(A) Suspension bolt pitch(B) Ceiling opening(C) Decoration panel(D)
GMV-ND09TS/A-T(U) 47-1/4 49-5/16 55-1/4 56-13/16
GMV-ND12TS/A-T(U)
GMV-ND15TS/A-T(U)
47-1/4 49-5/16 55-1/4 56-13/16
GMV-ND18TS/A-T(U)
GMV-ND24TS/A-T(U) 47-1/4 49-5/16 55-1/4 56-13/16
3.6.2 Installation Space
Unit: in.
Ceili
W
W
≥59
≥59
Flo
≥98-3/8
>3/4
≥13-3/4
Multi Variable Air Conditioners Indoor Unit
85
3.6 Installation of Two-way Cassette Type Indoor Unit
3.6.1 Outline and Installation Dimension
Unit: in
Model Indoor unit(A) Suspension bolt pitch(B) Ceiling opening(C) Decoration panel(D)
GMV-ND09TS/A-T(U) 47-1/4 49-5/16 55-1/4 56-13/16
GMV-ND12TS/A-T(U)
GMV-ND15TS/A-T(U)
47-1/4 49-5/16 55-1/4 56-13/16
GMV-ND18TS/A-T(U)
GMV-ND24TS/A-T(U) 47-1/4 49-5/16 55-1/4 56-13/16
3.6.2 Installation Space
Unit: in.
Ceili
W
W
≥59
≥59
Flo
≥98-3/8
>3/4
≥13-3/4
Unit: In.
Unit: In.
Model Indoor unit(A) Suspension bolt pitch(B) Ceiling opening(C) Decoration panel(D)
GMV-ND09TS/A-T(U) 47-1/4 49-5/16 55-1/4 56-13/16
GMV-ND12TS/A-T(U)
GMV-ND15TS/A-T(U) 47-1/4 49-5/16 55-1/4 56-13/16
GMV-ND18TS/A-T(U)
GMV-ND24TS/A-T(U) 47-1/4 49-5/16 55-1/4 56-13/16