Cooper & Hunter CHV6-072URB User manual

Installation Manual
VRF AIR-CONDITIONER
(HEAT RECOVERY)
IMPORTANT:
THANK YOU FOR PURCHASING THIS CENTRAL AIR
CONDITIONERS. READ AND UNDERSTAND THIS
MANUAL BEFORE USING TH AIR CONDITIONERS.
KEEP THIS MANUAL FOR FUTURE REFERENCE.
Outdoor Unit
Basic Units:
CHV6-072URB
CHV6-096URB
CHV6-120URB
CHV6-144URB
CHV6-168URB
CHV6-192URB
Combination
Modules:
CHV6-216~456URB

Dear user:
Thank you for choosing and using our products. For your better understanding and use of this product, be sure to read
and comply with the following related matters before use
This manual should be considered as a permanent part of the air conditioning equipment and should remain with
the air conditioning equipment.
This manual gives a common description and information for this air conditioner which you operate as well for other
models.  pursues a policy of continuing improvement in design and performance of products.The right is
therefore reserved to vary specifications without notice.
 cannot anticipate every possible circumstance that might involve a potential hazard. This air conditioner is
designed for standard air conditioning only. Do not use this heat recovery air conditioner for other purposes such as
drying clothes, refrigerating foods or for any other cooling or heating process. Do not install the unit in the following
places. It may cause a fire, deformation, corrosion or failure.
*Places where oil (including machinery oil) sprays *
●
●
●
●
●
●
Temperature
●
CAUTION
●
DANGER
WARNING
NOTE
: DANGER indicates a hazardous situation which, if not avoided, will result in death or serious injury.
:WARNING indicates a hazardous situation which, if not avoided, could result in death or serious injury.
:CAUTION, used with the safety alert symbol, indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
:NOTE is useful information for operation and/or maintenance.
regions，or places with high acidity or alkalinity.
Do not install the unit in the place where silicon gas drifts. If the silicon gas attaches to the surface of heat exchanger, the fin
surface repels water. As a result, drain water splashes outside of the drain pan and splashed water runs inside of electrical
box. In the end, water leakage or electrical devices failure may occur.
Do not install the unit in the place where the breeze directly catches the animals and plants. It could adversely affect the
animals and plants.
Installation and service engineering must comply with local standards, laws and regulations.
As the“public inaccessible appliances”, the indoor units are required to be installed at a height of no lower than 8.2ft.(2.5m).
The installation of the air conditioner can only be carried out by dealer or professional, and self installation by user may
cause water leakage, electric shock or a fire.
● If you have any questions, contact your dealer or designated service center of .
● To protect the environment, please do not discard the product at will, and  can provide recycling services in
accordance with the relevant provisions of the country and provide replaceable parts in accordance with national standard
requirements.
This air conditioner has been designed for the following temperatures. Operate the air conditioner within this range.
●
I
*
Places where a lot of sulfide gas drifts such as a hot spring.
* Places where flammable gas may generate or flow. Places where strong salty wind blows such as coast
IMPORTANT NOTICE
Signal words (R, RI and CUTI) are used to identify levels of hazard seriousness.
Definitions for identifying hazard levels are provided below with their respective signal words：
Indoor
Outdoor
Indoor
Outdoor
Cooling
Operation
Heating
Operation
Maximum Minimum
DX Indoor Unit
89/73
(32/23)
69/59
(21/15)
126
(52)*
14
(-10)
80
(27)
59
(15)
6
(16.5)
-13
(-25)**
oF DB/oF WB
(oC DB/oC WB)
oF DB
(oC DB)
oF DB
(oC DB)
oF WB
(oC WB)
oF(oC)
Water Inlet
Outdoor
Water Inlet
Cooling
Operation
Heating
Operation
Maximum Minimum
Water Module
Outdoor
77
(25)
50
(10)
130
(54)
50
(10)

()
50
(10)
-13
(-25)
**
110
(43)
oF
(oC)
oF DB
(oC DB)
oF
(oC)
NOTES:
(*) 118 oF(48oC )DB ~ 126oF(52oC) DB, Operation Control Range
(**) -4oF(-20oC) WB ~-13oF (-25oC) WB, Operation Control Range
DB：Dry Bulb, WB：Wet Bulb
oF WB
(oC B)

●
●
●
●
●
●
●
●
●
●
●
●
Do not use any sprays such as insecticide, lacquer, hair spray or other flammable gases within approximately 3.28ft.(1m) from
the system.
If circuit breaker is often activated, stop the system and contact your dealer or service contractor.
Check that the ground wire is securely connected. If the unit is not correctly grounded, it leads electric shock. Do not connect
the ground wiring to gas piping, water piping, lighting conductor or ground wiring for telephone.
Before performing any brazing work, check to ensure that there is no flammable material around. When charging refrigerant be
sure to wear leather gloves to prevent cold injuries.
Protect the wires, electrical parts, etc. from rats or other small animals. If not protected, rats may gnaw at unprotected parts
and which may lead to a fire.
Fix the cables securely. External forces on the terminals could lead to a fire.
Provide a sufficiently strong foundation. If not, the unit may fall down and it may lead to injuries.
Perform electrical work according to Installation Manual and all the relevant regulation and standards.
If the instructions are not followed, an electrical failure and fire may occur due to insufficient capacity and inadequate
performance. Use specified cables between units and choose the cables correctly. If not, an electrical failure or a fire may
break out.
Ensure that the outdoor unit is not covered with ice and snow before use.
●
DANGER
Do not perform installation work, refrigerant piping work, drain pump, drain piping and electrical wiring connection without
referring to our installation manual. If the instructions are not followed, it may result in a water leakage, electric shock or a fire.
In case of a fire, cut off the power immediately; do not touch the electrical parts by hand to avoid electric shock hazard. These
products are equipped with electrical parts. Do not pour water into the indoor or outdoor unit. Otherwise, it will cause a serious
electrical failures.
Do not open the service cover of the indoor or outdoor units without turning OFF the main power supply, otherwise it may
cause a serious safety accident. (In any case, users of the equipment are not allowed to open the service cover).
Do not touch or adjust safety devices inside the indoor unit or outdoor units. If these devices are touched or readjusted, it
may cause a serious accident.
Refrigerant R410A for this unit is incombustible, non-toxic and odorless; however if the refrigerant is leaked and is contacted
with fire, toxic gas will generate. Also because the R410A is heavier than air, the floor surface will be filled with it, which could
cause difficulty with breathing due to insufficient air. Turn OFF the main switch, extinguish any naked flames and contact your
service contractor, if refrigerant leakage occurs. Do not charge oxygen, acetylene or other flammable and poisonous gases
into the refrigerant cycle when performing a leakage test or an air-tight test. These types of gases can cause an explosion. It
is recommended that nitrogen be used for these types of tests.
Refrigerant safety leakage standards for construction and operation systems are determined in accordance with local
regulations or standards.
Use an ELB (Earth Leakage Breaker, with an actuation time of 0.1 second or less) at or above medium induction speed,
otherwise it may cause an electric shock or a fire.
For installation, firmly connect the refrigerant pipe before the compressor starts operating.
For maintenance, relocation and disposal, remove the refrigerant pipe after the compressor stops.
Do not perform a short-circuit of the protection device such as a pressure switch when operating. It may cause a fire and
explosion.
II
WARNING
●Do not step on or put any objects on the product.
●Do not put any foreign matters on the unit or inside the unit.
●Do not install the indoor unit, outdoor unit, remote control switch and cable within approximately 9.8ft.(3m) from strong
electromagnetic wave radiators such as medical equipment.
●Starting the unit after longtime idleness requires the compressor temperature to meet the starting requirements or reach
a certain heating time.
CAUTION
This appliance can be used by children aged from 8 years and above and persons with reduced physical, sensory or mental
capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the
appliance in a safe way and understand the hazards involved. Children shall not be made by children without supervision.
The A-weighted emission sound pressure level at workstations does not exceed 70 dB(A).
Cancer and reproductive harm-www.P65Warnings.ca.gov.
Take measures to ensure that the refrigerant limitations in ASHRAE Standard 15 (Canada: B52) or other local codes, are
followed. If refrigerant gas has leaked during the installation work, ventilate the room immediately.
●
●
●
●
●
●
●
●
●
●

CHECKING PRODUCT RECEIVED
●
●
Upon receiving this product, inspect it for any shipping damage.
Claims for damage in a written form, either apparent or concealed, should be filed immediately with the shipping
company.
Check the model number, electrical characteristics (power supply, voltage and frequency) and accessories to
determine if they are correct. The standard utilization of the unit shall be explained in these instructions.
Please contact your local agent, as the occasion arises.
’s liability shall not cover defects arising from the alteration performed by a customer without 
’s consent in a written form.
I
The heating capacity of the outdoor is decreased according to the air temperature. Therefore, it is recommended
that auxiliary equipment be used in the field when the unit is installed in a low temperature region.
The repair and maintenance of this air conditioner can only be carried out by the professionals.
N OTE:
*
*
●
●It is recommended to ventilate the room every 3 to 4 hours.
●In some cases, the air conditioner may not operate properly under the following cases.
●
In case the power supplied by the power transformer is less than or equal to the electric power of the air conditioner.
In case the large power-consuming equipment is too close to the power supply wiring for the air conditioner, so that
surge voltage may be inducted in the power supply wiring of the air conditioner.

1.Structure .................................................................................... .........................................................................................
1.1 Outdoor Unit & Refrigerant Cycle
.................................................................................................................................
TABLE OF CONTENTS
2.Before Installation ................................................................................................................................................
1.2 Necessary Tools and Instrument List for Installation
...................................................................................................
V
3.Transportation and Handling ................................................................................................................................
3.1 Transportation
...............................................................................................................................................................
3.2 Handling Method
...........................................................................................................................................................
4.Outdoor Unit Installation ......................................................................................................................................
4.1 Accessories Factory-Supplied
......................................................................................................................................
4.2 Installation environment
..............................................................................................................................................
4.3 Foundation
...................................................................................................................................................................
4.4 Drainage
.......................................................................................................................................................................
5.Refrigerant Piping Work .......................................................................................................................................
5.1 Piping Materials
...........................................................................................................................................................
5.2 Flaring and Joint
..........................................................................................................................................................
5.3 Caution about Outdoor Unit Installation
.......................................................................................................................
5.4 Piping Connection for System
......................................................................................................................................
6.Electrical Wiring ..................................................................................................................................................
6.1 General Check
.............................................................................................................................................................
6.2 Electrical Wiring
...........................................................................................................................................................
6.3 Electrical Wiring Connection
........................................................................................................................................
6.5 DIP Switch Setting of Outdoor Unit
.............................................................................................................................
7.Additional Refrigerant Charge .............................................................................................................................
7.1 Air-Tight Test
...............................................................................................................................................................
7.2 Vacuuming
...................................................................................................................................................................
7.3 Charging Operation ......................................................................................................................................................
8.Test Run .............................................................................................................................................................
8.1 Before Test Run
...........................................................................................................................................................
8.2 Test Run
.......................................................................................................................................................................
6. Electrical Wiring Connection of The System
...............................................................................................................
1
1
1
2
4
4
5
6
6
6
7
8
11
11
12
13
15
19
19
20
21
22
25
28
28
29
30
3
3
3

1 6
2712 17
3813 18
4914 19
5
1.Structure
1.1 Outdoor Unit & Refrigerant Cycle
Regarding structure drawings and refrigerant cycle diagram, please refer to Technical Catalogue.
No. Tool No. Tool No. Tool
Handsaw
Phillips Screwdriver
No.
Vacuum Pump
Refrigerant Gas Hose
Megohmmeter
Copper Pipe Bender
Plier
Pipe Cutter
Brazing Kit
Hexagon Wrench
Spanner
Charging Cylinder
Control Valve
Cutter for Wires
Gas Leak Detector
Leveller
Clamper for Solderless
Terminals
Hoist (for Indoor Unit)
Ammeter
Voltage Meter
Note: Use tools and measuring instruments exclusively for the new refrigerant R410A in case of direct
contact with the refrigerant.
The design pressure for this product is 601psi(4.15MPa).
To avoid accidental mixing of the different refrigerant or different refrigerant oil, the sizes of the charging
connections have been changed. It is necessary to prepare the following tools before performing installation.
Tool
The pressure of refrigerant R410A is 1.4 times higher than that of conventional refrigerant, impurities such as
moisture, oxide film, and grease affect R410A easily. Be sure to remove any moisture, dust, different refrigerant
or refrigeration oil from the refrigerant cycle. Otherwise, it may lead to explosion, injury, leakage, electric shock
or a fire.
10
11
15
16
20
1
1.2 Necessary Tools and Instrument List for Installation
DANGER

2
Capacity
kBtu/h(RT) 96(8RT) 120(10RT) 144(12RT) 168(14RT)
Model
192(16RT)
CHV6-072URB CHV6-096URB CHV6-120URB CHV6-144URB CHV6-168URB
CHV6-192URB
(6RT)
Measuring Instrument
and Tool R407C R410A
Reason of Non-Interchangeability
and Attention (★: Strictly Required)
Application
Pipe Cutter
Chamfering
Reamer
○ —— Cutting Pipe
Removing Burrs
Flaring Tool ○ ○■ Flaring for Tubes
Extrusion －
Adjustment
Gauge
■
* R410A requires high pressure resistance piping and larger
flaring. In case of material 1/2H, flaring is not
available.(The flaring tools for R410A are applicable to
R407C)
Dimensional Control
of Tube after Flaring
Pipe Bender ○ ○ *In case of material 1/2H, bending is not available. Use elbow
for bend and braze. Bending
Expanding
Tool ○ ○ *In case of material 1/2H, expanding of tube is not available.
Use joint for connecting tube. Expanding Tubes
Torque
Wrench
* For Φ1/2in., Φ5/8in. of R410A, spanner size is up to 5/64in. Connection of Flare Nut
Brazing Tool ○ ○ * Perform brazing work properly (adjustable flame and heating
method, filler applicable)
Nitrogen Gas ○
* Strict control against contamination (Blow nitrogen during
brazing.) Prevention from Oxidation
during Brazing Air-tight test
Refrige-
rant
Pipe
Lubrication Oil
(for Flare
Surface)
■
*Use a synthetic oil which is equivalent to the oil used in the
refrigerant cycle.
*Synthetic oil absorbs moisture quickly.
Applying Oil to the Flared
Surface
Refrigerant
Cylinder ● ■
*Check the cylinder for the corresponding refrigerant.
★Liquid refrigerant charging is required regarding zeotropic
refrigerant.
Refrigerant Charging
Vacuum Pump ○ ★The current pumps are applicable. However, it is required to
mount a vacuum pump adapter which can prevent reverse flow
when a vacuum pump stops, resulting in no reverse oil flow. Vacuum Pumping
Vacuum Pumping, Vacuum
Holding, Refrigerant Charg-
ing and Check of Pressures
Control Valve ● ■
Charging
Hose ● ■
Charging
Cylinder × * Use the weight scale when charging Refrigerant Charging
Weight Scale ○ ○ —— Measure refrigerant quantity
● ※■
Adapter for
Vacuum
Pump Reverse
Flow prevention
Refrige-
rant
Charge
Vacuum
Drying
Interchangeable
with R410A
*The current gas leakage detector (R22) is not applicable due
to different detecting method. Refrigerant Charging Gas
Leakage Check
■
For Φ1/4in.，Φ3/8.、Φ3/4in., spanner size is the same.
○
*No interchangeability is available due to higher pressures
when compared with R22. Connection diameter is different:
R410A: UNFl/2, R407C: UNF7/16
★Do not use old ones to the different refrigerant. Otherwise,
mineral oil will flow into the cycle and cause sludges, resulting
in clogging or compressor failure.
※ interchangeable with R407C
● ※■
Interchangeable
with R410A
*
■: only for Refrigerant R410A (not interchangeable with R22)
○ : interchangeable with current R22
× : Prohibited ● : only for Refrigerant R407C (not interchangeable with R22)
○
○
○
●
○
Brazing for Tubes
Refrigerant
Gas Leakage
Detector
Interchangeability
with R22
2.Before Installation
Line-Up of Outdoor Unit
【Basic Unit】
Capacity
kBtu/h(RT)
Model
×
-

【Combination Module】※
3
Combination
Capacity
kBtu/h(RT)
Model
Combination
Capacity
kBtu/h(RT)
Model
Combination
Capacity
kBtu/h(RT)
Model
456(38RT)
CHV6-456URB
CHV6-168URB
CHV6-144URB
CHV6-144URB
432(36RT)
CHV6-432URB
CHV6-144URB
CHV6-144URB
CHV6-144URB
408(34RT)
CHV6-408URB
CHV6-144URB
CHV6-144URB
384(32RT)
CHV6-384URB
CHV6-192URB
CHV6-192URB
360(30RT)
CHV6-360URB
CHV6-192URB
CHV6-168URB
336(28RT)
CHV6-336URB
CHV6-168URB
CHV6-168URB
312(26RT)
CHV6-312URB
CHV6-168URB
CHV6-144URB
288(24RT)
CHV6-288URB
CHV6-144URB
CHV6-144URB
264(22RT)
CHV6-264URB
CHV6-144URB
CHV6-120URB
240(20RT)
CHV6-240URB
CHV6-120URB
CHV6-120URB
216(18RT)
CHV6-216URB
CHV6-120URB
CHV6-096URB
CHV6-120URB

3.Transportation and Handling
3.1 Transportation
1.Transportation and Storage
Due to the limited strength of corrugated paper frame, pay attention to the followings in order
to prevent the unit from deformation.
●Do not step on or put any objects on the product.
●Apply two lifting wires onto the outdoor unit, when lifting by crane.
●Do not stack the product when storing.
2.Transportation and Wire Rope
●To protect the unit, do not remove any packing.
●Do not stack or put any objects on the product.
●Apply wire ropes on the both side of the unit as shown in the figure.
CAUTION
4
Rope Position
CORRECT INCORRECT
Transport the product as close to the installation location as practical before unpacking. When using
a crane, hang the unit according to the description on the label attached to the outdoor unit.
Corrugated Paper Frame
Do not remove
corrugated
paper frame and
plastic bands
Apply ropes on the splints
or corrugated paper with
thickness greater than
19/32in.(15mm).
Wooden Pallet
Do not hang the unit by the ropes at the wooden pallet.
DANGER
Wire Rope
Wooden Pallet
Wire Rope
Apply wire ropes through
circular holes
Wooden Pallet

NOTE
Do not apply excessive
force (both sides)
When hanging the unit, ensure a balance of the unit, check to ensure safety and lift up smoothly.
 Do not remove any packing materials.
 Hang the unit    with two wire ropes, as shown in Fig. 3.1.
(3)Hang the unit without wooden pallet, as shown in Fig.3.2.
*Do not push the bottom base by fork.
*Do not use roller.
In case of transportation after unpacking, protect the unit with splints or cloth.
3.2 Hanging Method
WARNING
Check to ensure that no foreign matters left in the outdoor unit before installation and test run.
Otherwise, a fire, failure or personal injury, etc. may occur.
5
Fig. 3.1 Hanging Work for Transportation
CORRECT
Rope Position
Wire Rope
INCORRECT
Wire Rope
Square Hole
Apply wire ropes
through circular holes
Do not remove
corrugated paper frame
and plastic bands
Wire Rope
Corrugated Paper Frame
Apply rope on the splints or
corrugated paper with thickness
greater than 19/32in. (15mm)
Angle of wire rope
greater than 60°
Do not apply any
force 
(Both Sides)
Do not apply excessive force  the square holes with forks or
other materials. The bottom of the unit may be deformed.
Do not apply
any force .
(Both Sides)
Do not remove
corrugated paper frame
and plastic bands
Corrugated Paper Frame
Wooden Pallet
Wire Rope
Carefully guide the sling belts through
both side slots of the wooden pallet.
Bottom corners: Attach four
5/8in (15mm) thick cardboard
padding on both sides at
this point for protection.
Apply rope on the splints
or corrugated paper with
thickness greater than
19/32in. (15mm).
Angle of wire rope
 than 60°
Bottom corners: Attach four
5/8in (15mm) thick cardboard
padding on both sides at
this point for protection.
Circular Hole
Fig. 3.2 Hanging Work without Wooden Pallet

4.Outdoor Unit Installation
4.1 Factory-Supplied Accessories
Check to ensure that the following accessories are packed with the outdoor unit.
Table 4.1 Factory-Supplied Accessories
6
NOTE:
If any of these accessories are not packed with the unit, please contact your contractor.
NOTES:
4.2 Installation
1.Do not install the outdoor unit where there is a high level of oil mist, flammable gases, salty air or harmful
gases such as sulphur and an acid or alkaline environment.
2.Do not install the outdoor unit where the electromagnetic wave is directly radiated to the electrical control box.
3.Install the outdoor unit as far as possible, at least 9.8ft.(3m) from the electromagnetic wave radiator.
nit:in.(mm)
1.
2.
3.
72 96 120 144 168 192
Accessory
Accessory
pipe pouch
Screw (Spare)
Installation Manual
×3 ×3 ×3 ×3 ×3 ×3
Electrical
accessory pouch
Fastener pouch ×1
×1
×1
×1
×1
×1
×1×1×1×1×1×1
×1×1×1×1×1×1
(1) Install the outdoor unit in a dry well ventilated environment.
(2) Install the outdoor unit where it is in the shade or a place where not be exposed to direct sunshine
or direct radiation from high temperature heat source.
(3) Install the outdoor unit where the sound or the discharge air from the outdoor unit does not affect
neighbors or surrounding ventilation.
The operating sound at the rear or right/left side is 3 to 6dB(A) higher than the value in the catalog at the
front side.
(4) Install the outdoor unit in a space with limited access to general public.
(5) Check to ensure that the foundation is flat, level and sufficiently strong.
(6) Do not install the outdoor unit where dust or other contamination could block the outdoor heat exchanger.
(7) When installing the outdoor unit in snow-covered areas, mount the field-supplied hoods on the top of the
outdoor unit and the inlet side of the heat exchanger.
(8) In heating or defrosting operation, drain water is discharged. Provide adequate drainage around the
foundation. If installing the unit on a roof or a veranda, avoid draining in or over walkways to prevent
water dripping on people or the formation of ice in winter. In case of installing such a place, provide the
additional drainage around the foundation.
(9) Do not install the outdoor unit in a space where a seasonal wind directly blows to the outdoor heat
exchanger or a wind from a building space directly blows to the outdoor fan.

unit:in.(mm)
left and right front and rear
4.3 Foundation
*Provide concrete foundation as shown in the figure. *Do not provide concrete foundation as shown below.
The foot of the outdoor unit may be deformed.
(3) Install the outdoor unit in the front-rear and right-left direction horizontally with a level gauge. Check to
ensure that the gradient in four directions (front, rear, right and left) is within 24/64in.(10mm).
(4) Provide a strong and correct foundation so that:
a. the outdoor unit is not on an incline.
b. no abnormal sound.
c. the outdoor unit will not fall down due to a strong wind or earthquake.
●Concrete Foundations
(1) The height of the foundation should be 5-29/32in.(150mm ) higher than
the ground level.
(2) Provide a drainage ditch around foundation for smooth drain.
7
Mortar Hole
Φ3-15/16(100)×Depth 5-29/32(150)
Drainage
Width 3-15/16(100)×Depth 25/32(20)
Drainage
Vibration Proof Mat
CORRECT
Front Side of Unit
Foot
Width
Foundation
Foot
Width
Front Side of Unit
INCORRECT
Foundation
2-31/64(63)
2-31/64(63)
24-9/16(624)

Model: 144-168 unit: in.(mm)
(5) When installing the outdoor unit, fix the unit by anchor bolts (field-supplied). 
Nut
Washer
Anchor Bolt
M12
Filled with Mortar
3-15/16(100)
Mortar
4.4 Drainage
Drainage is discharged during heating and defrosting operation, and so is rain
water. Pay attention to the following:
(1) Choose a place where well drainage is available, or provide a drain ditch.
8
Model: 192 unit: in.(mm)
Secure the outdoor unit with the anchor bolts.
2-43/64
(68)
Model: 72-96 unit: in.(mm)
2-43/64
(68) 31-31/32
(812)
2-43/64
(68)
Model: 120 unit: in.(mm)
2-43/64
(68) 42-21/64
(1075)
43/64
(17)
43/64
(17)
28-17/64
(718)
43/64
(17)
43/64
(17)
28-17/64
(718)
Hole of Anchor Bolt
4×25/32(20)×19/32(15)
Hole of Anchor Bolt
4×25/32(20)×19/32(15)
Hole of Anchor Bolt
4×25/32(20)×19/32(15)
Hole of Anchor Bolt
4×25/32(20)×19/32(15)
43/64
(17)
43/64
(17)
28-17/64
(718)
57-41/64
(1464)
2-43/64
(68)
2-43/64
(68)
28-17/64
(718)
43/64
(17)
43/64
(17)
47-29/32
(1217)
2-43/64
(68)
2-43/64
(68)

(2) Do not install the unit over the walkways. Condensate may fall on people.
In case of installing the unit in such a place, provide the additional drain pan.
(3) When drain piping is necessary for the outdoor unit, use the drain boss set (Optional, DC-01Q).
Do not use drain boss and drain pan kit in the cold area. The drain water in the drain pipe may be frozen
and then crack the drain pipe.
(4) When installing the unit on a roof or a veranda, drain water sometimes turns to ice on a cold morning.
Therefore, avoid draining into an area where people often use because it is slippery.
9
unit: in.(mm)
Model: 72-96
Model: 120 unit: in.(mm)
unit: in.(mm)
(8-21/32(220)×4-23/32(120) square hole)
Model: 144-168
Connection of communication cable
(Ø55/64(22)×2 via hole)
0-3/64(268)
4-9/64(105) 25-63/64(660) 7-9/16(192)Drain port (Φ1-1/32(26)x 2)
Drain pipe connector (optional)
Drain port (Φ1-1/32(26)×2)
Drain pipe connector (optional)
Connection of power cable
(Φ1-23/32(43.7) via hole)
Connection of communication cable
(Ø55/64(22)×2 via hole)
Connection of Refrigerant pipeline
14-45/64(373)
10-33/64(267)
4-1/16(103)
1-49/64(45)
3-15/16
(100)
7-3/4(197)
Drain port (Φ1-1/32(26)×5)
Drain pipe connector
(optional)
Connection of power cable
Connection of Refrigerant pipeline
(9-21/4(23)×-3/64(128) square
hole)
8-11/32(212)
30-45/64(780)
4-9/64(105) 5-45/64(145)
10-7/16(265)
14-61/64(380)
8-47/64(222)
10-33/64(267)
4-1/16(103)
(Φ1-23/32(43.7) via hole)
Connection of communication cable
(Ø55/64(22)×2 via hole)

DC-01Q
DC-01Q
1
1
4
Name Model
Drain Boss
Model Parts Name Application
Drain Cap
Rubber Cap
Drain Boss Connecting for Drain Piping
Embolization for Drain Hole
Sealing for Boss and Cap
Installation Position
Example: Model 72
●Drain Boss (Optional Parts)
The drain boss is for the drain pipe connection in order to use
outdoor unit bottom base as a drain pan.
Component Formation of Drain Boss
Q'ty
Drain Cap Position (2 Places)
Drain pipe
(Field-Supplied)
Drain Boss Position (2 Places)
(Outdoor Unit Rear Side)
Side view
(Front Side)
Bottom Base
Drain Cap
Drain Boss
Rear Side
3-47/64(95) 12-61/64(329)
2-3/64(52)
2-23/64(60)
5/16(8)
10
Model: 192 unit: in.(mm)
Drain port (Φ1-1/32(26)×5)
Drain pipe connector
(optional)
Connection of power
cable (Φ1-23/32(43.7)
via hole)
Connection of
communication cable
(Ø55/64(22)×2 via hole)
Connection of Refrigerant pipeline
(8-/4(225)×4-/4(108)
square hole)
8-31/32(228)
36-17/32(928)
4-11/64(106)8-15/64(209)
12-13/32(315)
15-5/16(389)
10-1/8(257)
6-1/16(154) 4-11/64(106)

When installing pipe through the wall, secure
a cap at the end of the pipe.
Correct Incorrect
Hole Hole
Attach a cap or vinyl tape.
Do not place the pipe directly on the
ground
Correct Incorrect
Attach a cap or vinyl tape.
Correct Incorrect
Rain water can enter
Attach a cap or
vinyl bag with
rubber band.
with two 
●Use refrigerant R410A in the refrigerant cycle.
Do not charge oxygen, acetylene or other flammable and poisonous gases into the refrigerant cycle when
performing a leakage test or an air-tight test. These types of gases are extremely dangerous and can cause
an explosion. It is recommended that compressed air, nitrogen be used for these types of tests.
●Check to ensure that no pressure exists inside the stop valve before removing the flange
5.Refrigerant Piping Work
5.1 Piping Materials
(1) Prepare copper pipes to be supplied in the locality.
(2) Select the piping size from the Technical Catalog.
(3) Select clean copper pipes. Make sure there is no dust and moisture inside the pipes. Purge pipes with nitrogen
●Cautions for Refrigerant Pipe Ends
●Cautions for Piping Connection Work
(1) Connect the indoor/outdoor units with refrigerant pipes. Fix the pipes and pay attention
(2) Apply refrigerant oil slightly on the sheet surface of the pipe and flare nut before the
NOTE:
Refrigerant oil is field-supplied.
●When tightening the flare nut, use two
.
Apply Refrigerant Oil
DANGER
CAUTION
Ensure to connect the piping among the units in the same refrigerant cycle.
Do not apply excessive force to the flare nut when tightening. Otherwise, the flare nut may crack due to
aged deterioration and refrigerant leakage may occur. Use the specified tightening torque.
11
【Model: FVC68D】
WARNING
or dry air to remove any dust or foreign matters before connecting pipes. Do not use any tools which produce a
lot of swarf such as a saw or a grinder.
not to contact with weak materials such as ceiling. Otherwise, vibration of piping may
give off abnormal sound.
flaring work. Then tighten the flare nut by two spanners with the specified tightening
torque. Perform the flaring work on the liquid piping then on the gas piping. Check
the gas leakage after the flaring work.
(3) In case the temperature and humidity inside the ceiling exceed 80.5°F/RH80%, apply additional insulation
(approx. 3/8in. thickness) to the accessory insulation. It prevents dew condensation on the surface of the
insulation (refrigerant pipe only).
(4) Perform the air-tight test (601psi for the test pressure).
(5) Perform cold insulation work by insulating and taping the flare connection and reducer connection. Also
insulate all the refrigerant pipes.

12
1/64(0.4)~1/32(0.8)R
A
d
90o + 2o
B
Flare Nut
unit:in.(mm)
1/2H material
Thickness Material
1/32(0.8) O material
1/32(0.8)
1/32(0.8)
3/64(1.0)
3/64(1.0)
3/64(1.0)
3/64(1.0)
3/64(1.0)
3/64(1.1)
3/64(1.35)
1/16(1.45)
1/16(1.55)
5/64(2.0)
5/64(2.0)
Diameter
1/2H material
Φ1/4(6.35)
Φ3/8(9.53)
Φ1/2(12.7)
Φ5/8(15.88)
Φ3/4(19.05)
Φ7/8(22.2)
Φ1(25.4)
Φ1-1/8(28.6)
Φ1-1/4(31.75)
Φ1-1/2(38.1)
Φ1-5/8(41.3)
Φ1-3/4(44.5)
Φ2(50.8)
Φ2-1/8(53.98)
O material
O material
O material
1/2H material
1/2H material
1/2H material
1/2H material
1/2H material
1/2H material
1/2H material
1/2H material
R410A
5.2 Flaring and Joint
Flaring Dimension
Perform the flaring work as shown below.
(*)It is impossible to
perform flaring work with
1/2H material. In this
case, use an accessory
pipe (with a flare)
Joint Selection
If you use 1/2H material, you can not perform flaring work. In this case, use a joint selected from the chart below.
45o + 2o
Piping Thickness and Material
Use the pipe as below.
●
●
●
Diameter (Φd)
R410A
1/4(6.35) 23/64(9.1)
3/8(9.53) 33/64(13.2)
1/2(12.7) 21/32(16.6)
5/8(15.88) 25/32(19.7)
3/4(19.05) (*)
A 1/64
+0
unit:in.(mm)
<Minimum Thickness of Joint (in.(mm))>
Diameter R410A
Φ1/4(6.35) 1/64(0.5)
Φ3/8(9.53) 1/32(0.6)
Φ1/2(12.7) 1/32(0.7)
Φ5/8(15.88) 1/32(0.8)
Φ3/4(19.05) 1/32(0.8)
Φ7/8(22.2) 1/32(0.9)
Φ1(25.4) 1/32(0.95)
Φ1-1/8(28.6) 3/64(1.0)
Φ1-1/4(31.75) 3/64(1.1)
Φ1-1/2(38.1) 3/64(1.35)
Φ1-5/8(41.3) 1/16(1.45)
Φ1-3/4(44.5) 1/16(1.55)
Φ2(50.8) 5/64(2.0)
Φ2-1/8(53.98) 5/64(2.0)
< Flare Nut Dimension B (in.(mm))>
Diameter R410A
Φ1/4(6.35) 43/64(17)
Φ3/8(9.53) 55/64(22)
Φ1/2(12.7) 1-1/32(26)
Φ5/8(15.88) 1-9/64(29)
Φ3/4(19.05) 1-27/64(36)