Argo CAFM1V Series User manual

CAFM1V
CAFM1VS
CAFM2V
CAFM
MAFM
SPAFM
DSAFM
DSAFMHP
KFM
KFMNC
GRFMI
GRFM
K
INSTALLATION INSTRUCTIONS
MULTISET System - 2 WAY
DC Inverter R410A
Models R410A
Indoor units
Indoor unit type
CAFM1V**
CAFM1VS**
CAFM2V**
CAFM*
MAFM
SPAFM
DSAFM
DSAFMHP **
KFM**
KFMNC**
KPAFM*
SDAFM*
1-Way Air Discharge
semi-concealed
Wall-mounted
Ceiling-mounted
Concealed-Duct
Floor standing
Concealed-Floor
Floor standing
Slim Ducted l
7 9 12 16 18 22 25 36 48
CAFM1V74R CAFM1V94R CAFM1V124R
CAFM1VS94R CAFM1VS124R CAFM1VS184R CAFM1VS254R
CAFM1VS74R CAFM2V94R CAFM2V124R CAFM2V184R CAFM2V254R
CAFM75R CAFM95R CAFM125R CAFM165R CAFM185R CAFM255R CAFM365R CAFM485R
MAFM75R MAFM95R MAFM125R MAFM185R MAFM255R
SPAFM124R** SPAFM184R** SPAFM255R SPAFM365R SPAFM485R
DSAFM75R* DSAFM95R* DSAFM125R* DSAFM165R* DSAFM185R* DSAFM225R* DSAFM255R DSAFM365R DSAFM485R
DSAFMHP254R DSAFMHP364R DSAFMHP484R
KFM74R KFM94R KFM124R KFM184R KFM254R
KFMNC74R KFMNC94R KFMNC124R KFMNC184R KFMNC254R
KPAPM75R KPAFM95R KPAPM125R KPAFM165R KPAFM185R KPAFM225R
SDAFM76R SDAFM96R SDAFM126R SDAFM166R SDAFM186R SDAFM226R
Outdoor units
Optional controllers
Refrigerant R410A is used in the Outdoor units .
GRFMI Main Unit (Inverter) GRFMI 605 R, GRFMI 705 R, GRFMI 905 R, GRFMI 1155 R
GRFM "Constant Speed" unit (Sub) GRFM 705 R, GRFM 905 R, GRFM 1155 R
Wired Remote Controller K70D036Z
Wireless Remote Controller (for CAFM type) K70D037Z
Wireless Remote Controller (for KPAFM type) K70D038Z
Wireless Remote Controller (for SP AFM type) K70D040Z
Wireless Remote Controller+receiver for all types of Indoor units K70D039Z
Wireless Remote Controller (for MAFM type) K70D041Z
Simplified Remote Controller K70D042Z
Remote sensor K70D050Z
System Controller K70D043Z
Schedule timer K70D046Z
K
* For these types of Indoor unit, please see the Installation Instructions accompanying the unit
** These types of Indoor unit are not available
1-Way Air Discharge
semi-concealed slim
2-Way Air Discharge
semi-concealed
semi-concealed
4-Way Air Discharge
Concealed-Duct
high static pressure
standing

2
IMPORTANT!
Please Read Before Starting
This air conditioning system meets strict safety and operat-
ing standards. As the installer or service person, it is an
important part of your job to install or service the system so it
operates safely and efficiently.
For safe installation and trouble-free operation, you must:
●Carefully read this instruction booklet before beginning.
●Follow each installation or repair step exactly as shown.
●Observe all local, state, and national electrical codes.
●This product is intended for professional use.
Permission from the power supplier is required when
installing an outdoor unit that is connected to a 16 A
distribution network.
●Pay close attention to all warning and caution notices
given in this manual.
This symbol refers to a hazard or
unsafe practice which can result
in severe personal injury or death.
This symbol refers to a hazard or
unsafe practice which can result
in personal injury or product or
property damage.
If Necessary, Get Help
These instructions are all you need for most installation
sites and maintenance conditions. If you require help for a
special problem, contact our sales/service outlet or your
certified dealer for additional instructions.
In Case of Improper Installation
The manufacturer shall in no way be responsible for
improper installation or maintenance service, including fail-
ure to follow the instructions in this document.
SPECIAL PRECAUTIONS
When Wiring
ELECTRICAL SHOCK CAN CAUSE
SEVERE PERSONAL INJURY OR DEATH.
ONLY A QUALIFIED, EXPERIENCED
ELECTRICIAN SHOULD ATTEMPT TO
WIRE THIS SYSTEM.
• Do not supply power to the unit until all wiring and tubing
are completed or reconnected and checked.
• Highly dangerous electrical voltages are used in this sys-
tem. Carefully refer to the wiring diagram and these
instructions when wiring. Improper connections and inad-
equate grounding can cause accidental injury or death.
• Ground the unit following local electrical codes.
• Connect all wiring tightly. Loose wiring may cause over-
heating at connection points and a possible fire hazard.
When Transporting
Be careful when picking up and moving the indoor and outdoor
units. Get a partner to help, and bend your knees when lifting
to reduce strain on your back. Sharp edges or thin aluminum
fins on the air conditioner can cut your fingers.
When Installing…
…In a Room
Properly insulate any tubing run inside a room to prevent
“sweating” that can cause dripping and water damage to
walls and floors.
…In Moist or Uneven Locations
Use a raised concrete pad or concrete blocks to provide a
solid, level foundation for the outdoor unit. This prevents
water damage and abnormal vibration.
…In an area with High Winds
Securely anchor the outdoor unit down with bolts and a
metal frame. Provide a suitable air baffle.
…In a Snowy Area (for Heat Pump-type Systems)
Install the outdoor unit on a raised platform that is higher
than drifting snow. Provide snow vents.
When Connecting Refrigerant Tubing
• Ventilate the room well, in the event that is refrigerant
gas leaks during the installation. Be careful not to allow
contact of the refrigerant gas with a flame as this will
cause the generation of poisonous gas.
• Keep all tubing runs as short as possible.
• Use the flare method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces of
the flare and union tubes before connecting them, then
tighten the nut with a torque wrench for a leak-free con-
nection.
• Check carefully for leaks before starting the test run.
Depending on the system type, liquid and gas lines may
be either narrow or wide. Therefore, to avoid confusion the
refrigerant tubing for your particular model is speci-fied as
either “narrow” or “wide” than as “liquid” or “gas.”
When Servicing
• Turn the power OFF at the main power box (mains)
before opening the unit to check or repair electrical parts
and wiring.
• Keep your fingers and clothing away from any moving
parts.
• Clean up the site after you finish, remembering to check
that no metal scraps or bits of wiring have been left
inside the unit being serviced.
• Ventilate any enclosed areas when installing or testing the
refrigeration system. Escaped refrigerant gas, on contact
with fire or heat, can produce dangerously toxic gas.
• Confirm after installation that no refrigerant gas is leak-
ing. If the gas comes in contact with a burning stove, gas
water heater, electric room heater or other heat source, it
can cause the generation of poisonous gas.
NOTE
WARNING
WARNING
CAUTION
CAUTION
04-408 InveterW_Techn_a-p50 12/16/04 3:12 PM Page 2

3
2. The standards for minimum room volume are as
follows.
(1) No partition (shaded portion)
(2) When there is an effective opening with the adja-
cent room for ventilation of leaking refrigerant gas
(opening without a door, or an opening 0.15% or
larger than the respective floor spaces at the top
or bottom of the door).
(3) If an indoor unit is installed in each partitioned
room and the refrigerant tubing is interconnected,
the smallest room of course becomes the object.
But when mechanical ventilation is installed inter-
locked with a gas leakage detector in the smallest
room where the density limit is exceeded, the vol-
ume of the next smallest room becomes the object.
3. The minimum indoor floor space compared with the
amount of refrigerant is roughly as follows: (When
the ceiling is 2.7 m high)
Check of Density Limit
The room in which the air conditioner is to be
installed requires a design that in the event of
refrigerant gas leaking out, its density will not
exceed a set limit.
The refrigerant (R410A), which is used in the air condi-
tioner, is safe, without the toxicity or combustibility of
ammonia, and is not restricted by laws imposed to pro-
tect the ozone layer. However, since it contains more
than air, it poses the risk of suffocation if its density
should rise excessively. Suffocation from leakage of
refrigerant is almost non-existent. With the recent
increase in the number of high density buildings, how-
ever, the installation of multi air conditioner systems is
on the increase because of the need for effective use
of floor space, individual control, energy conservation
by curtailing heat and carrying power, etc.
Most importantly, the multi air conditioner system is
able to replenish a large amount of refrigerant com-
pared to conventional individual air conditioners. If a
single unit of the multi air conditioner system is to be
installed in a small room, select a suitable model and
installation procedure so that if the refrigerant acci-
dentally leaks out, its density does not reach the limit
(and in the event of an emergency, measures can be
made before injury can occur).
In a room where the density may exceed the limit,
create an opening with adjacent rooms, or install
mechanical ventilation combined with a gas leak
detection device. The density is as given below.
Total amount of refrigerant (kg)
Min. volume of the indoor unit installed room (m3)
≤Density limit (kg/m3)
The density limit of refrigerant which is used in multi air con-
ditioners is 0.3 kg/m3(ISO 5149).
1. If there are 2 or more refrigerating systems in a sin-
gle refrigerating device, the amount of refrigerant
should be as charged in each independent device.
For the amount of charge in this example:
The possible amount of leaked refrigerant gas in rooms
A, B and C is 10 kg.
The possible amount of leaked refrigerant gas in rooms
D, E and F is 15 kg.
NOTE
Outdoor unit
Refrigerant tubing
Indoor unit
e.g., charged
amount (10 kg)
Outdoor unit
Indoor unit
Room A Room B Room C Room D Room E Room F
e.g., charged
amount (15 kg)
Refrigerant tubing
Outdoor unit
Very
small
room Indoor unit
Small
room Medium room Large room
Mechanical ventilation device –Gas leak detector
40
35
30
25
20
15
10
5
010 20 30
Total amount of refrigerant
Min. indoor floor space
m
2
kg
Range below the
density limit
of 0.3 kg/m
3
(countermeasures
not needed)
Range above
the density limit
of 0.3 kg/m
3
(countermeasures
needed)
04-408 InveterW_Techn_a-p50 12/16/04 3:12 PM Page 3

4
1-2. Prevent impurities including water, dust and oxide from entering the tubing. Impurities can cause R410A
refrigerant deterioration and compressor defects. Due to the features of the refrigerant and refrigerating
machine oil, the prevention of water and other impurities becomes more important than ever.
2. Be sure to recharge the refrigerant only in liquid form.
2-1. Since R410A is a non-azeotrope, recharging the refrigerant in gas form can lower performance and cause
defects of the unit.
2-2. Since refrigerant composition changes and performance decreases when gas leaks, collect the remaining
refrigerant and recharge the required total amount of new refrigerant after fixing the leak.
3. Different tools required
3-1. Tool specifications have been changed due to the characteristics of R410A.
Some tools for R22- and R407C-type refrigerant systems cannot be used.
Unit: mm
Material 0
Copper tube Outer diameter 6.35 9.52 12.7 15.88
Wall thickness 0.8 0.8 0.8 1.0
Material 1/ 2 H, H
Copper tube Outer diameter 19.05 22.22 25.4 28.58 31.75 38.1
Wall thickness 1.0 1.0 1.0 1.0 1.1 1.35
Item New R407C tools Remarks
tool compatible
with R410A
Manifold gauge Yes No Types of refrigerant, refrigerating machine
oil, and pressure gauge are different.
Charge hose Yes No To resist higher pressure, material must be changed.
Vacuum pump Yes Yes Use a conventional vacuum pump if it is equipped
with a check valve. If it has no check valve,
purchase and attach a vacuum pump adapter.
Leak detector Yes No Leak detectors for CFC and HCFC that
react to chlorine do not function because
R410A contains no chlorine. Leak detector
for HFC134a can be used for R410A.
Flaring oil Yes No For systems that use R22, apply mineral oil (Suniso oil)
to the flare nuts on the tubing to prevent refrigerant
leakage. For machines that use R407C or R410A, apply
synthetic oil (ether oil) to the flare nuts.
Precautions for Installation Using New Refrigerant
1. Care regarding tubing
1-1. Process tubing
●Material: Use C1220 phosphorous deoxidized copper specified in JIS H3300 “Copper and Copper Alloy Seam-
less Pipes and Tubes.”
For tubes of φ19.05 or larger, use C1220 T-1/2H material or H material, and do not bend the tubes.
●Tubing size: Be sure to use the sizes indicated in the table below.
●Use a tube cutter when cutting the tubing, and be sure to remove any flash. This also applies to distribution
joints (optional).
●When bending tubing φ15.88 or smaller, use a bending radius that is 4 times the outer diameter of the tubing or larger.
* Using tools for R22 and R407C and new tools for R410A together can cause defects.
Manifold gauge
Vacuum pump
Outlet
Inlet
CAUTION
Use sufficient care in handling the tubing. Seal the tubing ends with
caps or tape to prevent dirt, moisture, or other foreign substances
from entering. These substances can result in system malfunction.
04-408 InveterW_Techn_a-p50 12/16/04 3:12 PM Page 4

5
Valve
Liquid
3-2. Use R410A exclusive cylinder only.
Single-outlet valve
(with siphon tube)
Liquid refrigerant should be recharged
with the cylinder standing on end as
shown.
New refrigerant R410A cannot be used
for earlier models.
1. Compressor specifications are different.
If recharging a R22 or R407C compressor with
R410A, durability will significantly decrease since
some of the materials used for compressor parts are
different.
2. Existing tubing cannot be used (especially R22).
Completely cleaning out residual refrigerating
machine oil is impossible, even by flushing.
3. Refrigerating machine oil differs (R22).
Since R22 refrigerating machine oil is mineral oil, it
does not dissolve in R410A. Therefore, refrigerating
machine oil discharged from the compressor can
cause compressor damage.
R22 refrigerating machine oil Mineral oil (Suniso oil)
R407C refrigerating machine oil Synthetic fluid (ether oil)
R410A refrigerating machine oil Synthetic fluid (ether oil)
R410A
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6
IMPORTANT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Please Read Before Starting
Check of Density Limit
Precautions for Installation Using New Refrigerant
New refrigerant R410A cannot be used for earlier models
1. GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1-1. Tools Required for Installation (not supplied)
1-2. Accessories Supplied with Unit
1-3. Type of Copper Tube and Insulation Material
1-4. Additional Materials Required for Installation
1-5. Tubing Size
1-6. Straight Equivalent Length of Joints
1-7. Additional Refrigerant Charge
1-8. Combination Outdoor Units
1-9. System Limitations
1-10. Tubing Length
1-11. Check of Limit Density
1-12. Installing Distribution Joint
1-13 Optional Distribution Joint Kits
1-14. Optional Ball Valve Kits
1-15. Recommended Location of Ball Valves
1-16. Example of Tubing Size Selection and
Refrigerant Charge Amount
2. SELECTING THE INSTALLATION SITE . . . . .26
2-1. Indoor Unit
2-2. Outdoor Unit
2-3. Shield for Horizontal Exhaust Discharge
2-4. Installing the Outdoor Unit in Heavy Snow Areas
2-5. Precautions When Installing in Heavy Snow
Areas
2-6. Dimensions of Wind Ducting
2-7. Dimensions of Snow Ducting
3. HOW TO INSTALL THE INDOOR UNIT . . . . .33
■1-Way Air Discharge Semi-Concealed Type
(CAFM1V Type) . . . . . . . . . . . . . . . . . . . . . . . .33
3-1. Suspending the Indoor Unit
3-2. Placing the Unit Inside the Ceiling
3-3. Installing the Drain Piping
3-4. Checking the Drainage
■1-Way Air Discharge Semi-Concealed Slim Type
(CAFM1VS Type) . . . . . . . . . . . . . . . . . . . . . . .38
3-5. Suspending the Indoor Unit
3-6. Placing the Unit Inside the Ceiling
3-7. Installing the Drain Piping
3-8. Checking the Drainage
■2-Way Air Discharge Semi-Concealed Type
(CAFM2V Type) . . . . . . . . . . . . . . . . . . . . . . . .43
3-9. Suspending the Indoor Unit
3-10. Placing the Unit Inside the Ceiling
3-11. Installing the Drain Piping
3-12. Checking the Drainage
■4-Way Air Discharge Semi-Concealed Type
(CAFM Type) . . . . . . . . . . . . . . . . . . . . . . . . . . .47
3-13. Preparation for Suspending
3-14. Suspending the Indoor Unit
3-15. Placing the Unit Inside the Ceiling
3-16. Installing the Drain Piping
3-17. Checking the Drainage
■Wall-Mounted Type (MAFM Type) . . . . . . . . . .51
3-18. Removing the Rear Panel from the Unit
3-19. Selecting and Making a Hole
3-20. Installing the Rear Panel onto the Wall
3-21. Removing the Grille to Install the Indoor Unit
3-22. Preparing the Tubing
3-23. Shaping the Tubing
3-24. Installing the Drain Hose
■Ceiling-Mounted Type (SPAFM Type) . . . . . . . .55
3-25. Required Minimum Space for Installation
and Service
3-26. Suspending the Indoor Unit
3-27. Duct for Fresh Air
3-28. Shaping the Tubing
3-29. Installing the Drain Piping
■Concealed-Duct Type (DSAFM Type) . . . . . . .62
3-30. Required Minimum Space for Installation
and Service
3-31. Suspending the Indoor Unit
3-32. Installing the Drain Piping
3-33. Checking the Drainage
3-34. Increasing the Fan Speed
■Concealed-Duct High Static Pressure Type
(DSAFMHP Type) . . . . . . . . . . . . . . . . . . . . . . .67
3-35. Required Minimum Space for Installation
and Service (25, 36, 48 Type)
3-36. Required Minimum Space for Installation
and Service (76, 96 Type)
3-37. Suspending the Indoor Unit
3-38. Installing the Refrigerant Tubing
3-39. Installing the Drain Piping
3-40. Caution for Ducting Work
3-41. Increasing the Fan Speed (96 Type only)
■Floor-Standing Type (KFM Type)
Concealed Floor-Standing Type (KFMNC Type) 74
3-42. Required Minimum Space for Installation
and Service
3-43. Dimensions and Part Names
3-44. Removing and Attaching the Front Panel
(Floor-Standing Type)
3-45. Installing the Refrigerant Tubing
3-46. Installing the Drain Piping
3-47. Installing the Remote Controller
CONTENTS
Page Page
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7
4. HOW TO INSTALL THE OUTDOOR UNIT . . .79
4-1. Transporting
4-2. Installing the Outdoor Unit
5. ELECTRICAL WIRING . . . . . . . . . . . . . . . . . . .81
5-1. General Precautions on Wiring
5-2. Recommended Wire Length and Wire Diam-
eter for Power Supply System
5-3. Wiring System Diagrams
6. HOW TO INSTALL THE REMOTE CONTROLLER
(OPTIONAL PART) . . . . . . . . . . . . . . . . . . . . . .85
6-1. When Using a Wall Box for Flush Mounting
6-2. Basic Wiring Diagram
6-3. Wiring System Diagram for Group Control
6-4. Switching the Room Temperature Sensors
6-5. Connecting to a Ventilation Fan
6-6. Wiring the Remote Controller
6-7. Meanings of Alarm Messages
7. HOW TO PROCESS TUBING . . . . . . . . . . . . .93
7-1. Connecting the Refrigerant Tubing
7-2. Connecting Tubing Between Indoor and
Outdoor Units
7-3. Insulating the Refrigerant Tubing
7-4. Taping the Tubes
7-5. Finishing the Installation
8. AIR PURGING . . . . . . . . . . . . . . . . . . . . . . . . .97
■Air Purging with a Vacuum Pump (for Test Run)
Preparation
9. HOW TO INSTALL THE CEILING PANEL . . .100
■1-Way Air Discharge Semi-Concealed Type
(CAFM1V Type) . . . . . . . . . . . . . . . . . . . . . . .100
9-1. Installing the Ceiling Panel
9-2. How to Use the Stoppers
■1-Way Air Discharge Semi-Concealed Slim Type
(CAFM1VS Type) . . . . . . . . . . . . . . . . . . . . . .101
9-3. Installing the Ceiling Panel
■2-Way Air Discharge Semi-Concealed Type
(CAFM2V Type) . . . . . . . . . . . . . . . . . . . . . . .103
9-4. Before Installing the Ceiling Panel
9-5. Installing the Ceiling Panel
9-6. When Removing the Ceiling Panel for Servicing
■4-Way Air Discharge Semi-Concealed Type
(CAFM Type) . . . . . . . . . . . . . . . . . . . . . . . . . .105
9-7. Before Installing the Ceiling Panel
9-8. Installing the Ceiling Panel
9-9. Wiring the Ceiling Panel
9-10. How to Attach the Corner & Air Intake Grille
9-11. Checking After Installation
9-12. When Removing the Ceiling Panel for Servicing
9-13. Adjusting the Auto Flap
10. TEST RUN . . . . . . . . . . . . . . . . . . . . . . . . . . .109
10-1. Preparing for Test Run
10-2. Test Run Procedure
10-3. Main Outdoor Unit PCB Setting
10-4. Sub Outdoor Unit PCB Setting
10-5. Auto Address Setting
10-6. Caution for Pump Down
11. HOW TO INSTALL THE WIRELESS REMOTE
CONTROLLER RECEIVER . . . . . . . . . . . . . .122
■K70D037Z for 4-Way Cassette (CAFM Type) . . .122
11-1. Installing the Receiver Unit
11-2. Accessories
11-3. Wiring the Receiver Unit
11-4. Precautions on Simultaneous Installation of
Wired Remote Controller and Wireless
Remote Controller
11-5. How to use the Test Run Setting
■K70D040Z for Ceiling Mounted (SPAFM Type) 125
11-6. Installing the Receiver Unit
11-7. Accessories Supplied with Unit
11-8. Wiring the Receiver Unit
11-9. Precautions on Simultaneous Installation of
Wired Remote Controller and Wireless
Remote Controller
11-10. How to Use the Test Run Setting
■K70D038Z for 2-Way and High Ceiling
1-Way Type (CAFM2V, CAFM1VS Type) . . . .128
11-11. Installing the Display
11-12. Installing the Control Unit
11-13. Installing the Display
11-14. Installing the Control Unit
11-15. Accessories
11-16. Wiring the Receiver Unit
11-17. Precautions on Simultaneous Installation of
Wired Remote Controller and Wireless
Remote Controller
11-18. How to Use the Test Run Setting
■K70D039Z for CAFM1V, DSAFM, DSAFMHP, KFM,
KFMNC Type . . . . . . . . . . . . . . . . . . . . . . . . . .133
11-19. Accessories Supplied with Separate
Receiver Unit
11-20. Important Information for Installation of
1 Separate Receiver Unit
11-21. How to Install the Separate Receiver Unit
11-22. Wiring the Separate Receiver Unit
11-23. Important Information for Installation of
2 Separate Receiver Units
11-24. Test Run Setting
12. SPECIAL REMARKS . . . . . . . . . . . . . . . . . . .139
■DC Fan Tap Change Procedure for 4-Way
Cassete (CAFM Type)
Page Page
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8
1. GENERAL
This booklet briefly outlines where and how to install
the air conditioning system. Please read over the
entire set of instructions for the indoor and outdoor
units and make sure all accessory parts listed are
with the system before beginning.
1-1. Tools Required for Installation (not supplied)
1. Standard screwdriver
2. Phillips head screwdriver
3. Knife or wire stripper
4. Tape measure
5. Carpenter’s level
6. Sabre saw or key hole saw
7. Hacksaw
8. Core bits
9. Hammer
10. Drill
11. Tube cutter
12. Tube flaring tool
13. Torque wrench
14. Adjustable wrench
15. Reamer (for deburring)
1-2. Accessories Supplied with Unit
See Tables 1-1 to 1-10.
1-3. Type of Copper Tube and Insulation Material
If you wish to purchase these materials separately
from a local source, you will need:
1. Deoxidized annealed copper tube for refrigerant
tubing.
2. Foamed polyethylene insulation for copper tubes as
required to precise length of tubing. Wall thickness
of the insulation should be not less than 8 mm.
3. Use insulated copper wire for field wiring. Wire
size varies with the total length of wiring. Refer to
5. Electrical Wiring for details.
1-4. Additional Materials Required for Installation
1. Refrigeration (armored) tape
2. Insulated staples or clamps for connecting wire
(See your local codes.)
3. Putty
4. Refrigeration tubing lubricant
5. Clamps or saddles to secure refrigerant tubing
6. Scale for weighing
CAUTION
Check local electrical codes
and regulations before
obtaining wire. Also, check
any specified instructions
or limitations.
Table Type
1-1 1-Way Air Discharge Semi-Concealed
1-2 1-Way Air Discharge Semi-Concealed Slim
1-3 2-Way Air Discharge Semi-Concealed
1-4 4-Way Air Discharge Semi-Concealed
1-5 Wall-Mounted
1-6 Ceiling-Mounted
1-7 Concealed-Duct
1-8 Concealed-Duct High Static Pressure
1-9 Floor-Standing & Concealed Floor-Standing
1-10 Outdoor Unit
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9
Table 1-1 (1-Way Air Discharge Semi-Concealed)
Table 1-2 (1-Way Air Discharge Semi-Concealed Slim)
Part Name Figure Q’ty Remarks
Flare insulator 2
Insulating tape 3
2
Vinyl clamp 8
Hose band 1
Packing 1
Drain insulator 1
Drain hose
1
Installation gauge
8
For wide and narrow tubes
For wide and narrow tubes
For wide and narrow tube flare nuts
For flare insulator
For securing drain hose
For drain joint
For drain joint
For measuring clearance between the unit and ceiling
Special washer For suspension bolts
1 For securing drain hose
(Black)
(White)
(White)
Part Name Figure Q’ty Remarks
Full-scale installation diagram 1
Special washer 8
Flare insulator 2
Insulating tape 2
2
Vinyl clamp 8
Hose band 1
Packing 1
Drain insulator 1
Sealing putty 1
Cable 1
For determining suspension bolt pitch
For temporarily suspending indoor unit from ceiling
For wide and narrow tubes
For wide and narrow tubes
For wide and narrow tube flare nuts
For flare insulator
For securing drain hose
For drain joint
For drain joint
For sealing recessed portion of power supply
Drain hose 1
(Black)
For securing drain hose
Connection cable for fan motor
04-408 InveterW_Techn_a-p50 12/16/04 3:12 PM Page 9

10
Table 1-3 (2-Way Air Discharge Semi-Concealed)
Part Name Figure Q’ty Remarks
Flare insulator 2
Insulating tape 2
Vinyl clamp 8
Hose band 1
Packing 1
Drain insulator 1
For wide and narrow tubes
For wide and narrow tube flare nuts
For flare insulator and drain insulator
For securing drain hose
For drain joint
For drain joint
(White)
Drain hose (L = 25cm)
Special washer For suspension bolts
For securing drain hose
1
1
4
8
1
1For sealing recessed portion of power supply
Putty
Installation gauge
(Use the packaging side pad.)
M5 × L40
(Black screw, with washer)
Gauge A
(Install on tubing side.)
Gauge B
(Install on opposite side of tubing.)
For fastening
installation gauges
Table 1-4 (4-Way Air Discharge Semi-Concealed)
Part Name Figure Q’ty Remarks
Full-scale installation diagram 1
Flare insulator 2
Insulating tape 2
Hose band 1
Packing 1
Drain insulator 1
Drain hose 1
4
For wide and narrow tubes
For securing drain hose
For drain joint
For drain joint
(White)
Washer 8For suspension bolts
Screw
Printed on container box
For wide and narrow tube flare nuts
For full-scale installation diagram
For securing drain hose
Table 1-5 (Wall-Mounted)
Part Name Figure
Q’ty Remarks
Plastic cover 1
Tapping screw 10
For improved tubing appearance
For fixing the rear panel
Truss-head Phillips
4 ×16 mm
Insulator 1For insulating flare nut (255 type only)
04-408 InveterW_Techn_a-p50 12/16/04 3:12 PM Page 10

11
Table 1-6 (Ceiling-Mounted)
Part Name Figure Q’ty Remarks
Special washer 4
Drain insulator 1
Flare insulator
2 sets
Insulating tape 2
Vinyl clamp 8
Eyelet 1
Full-scale installation
diagram 1
Drain hose 1
For temporarily suspending indoor unit from ceiling
For drain hose joint
For wide and narrow tube joints
For wide and narrow flare joints
For flare and drain insulator
For power supply inlet
T10
T5 T3
White
(heat-resisting)
For drain hose connection
2
Hose band
L140 For main unit + PVC pipe joints
Printed on container box
Table 1-7 (Concealed-Duct)
Part Name Figure Q’ty Remarks
8
Flare insulator 2
Insulating tape 2
Drain insulator 1
Hose band 1
Packing 1
Drain hose 1
Sealing putty 1
Vinyl clamp 8
Booster cable* 1
For suspending indoor unit from ceiling
For wide and narrow tubes
For wide and narrow tubes flare nuts
For drain hose joint
For securing drain hose
For drain joint
For sealing recessed portion of power supply
For flare and drain insulators
* Booster cable is housed inside the electrical component box.
Washer
Connector for changeover to HT tap.
●Use 3/8" for suspending bolts.
●Field supply for suspending bolts and nuts.
04-408 InveterW_Techn_a-p50 12/16/04 3:12 PM Page 11

12
Table 1-8 (Concealed-Duct High Static Pressure)
Part Name Figure Q’ty Remarks
Special washer 8
Flare insulator 2
Drain socket 1
Tube connector 1
For suspending indoor unit from ceiling
For wide and narrow tubes
For drain pipe connection
For increasing size of narrow tube from φ6.35 to
φ9.52 mm (only for 25 type)
Table 1-9 (Floor-Standing & Concealed Floor-Standing)
Part Name Figure Q’ty Remarks
Connection pipe 1
Flare insulator 2
Insulating tape 2
Insulating tape 2
Vinyl clamp 7
Insulating tape (black and long) 1
Drain insulator 1
For connecting wide tubes
For wide and narrow tubes
For wide and narrow tube flare nuts
For wide and narrow tubes
For ends of flare insulator
For drain pipe
For drain hose joint
(White)
(Black)
Table 1-10 (Outdoor Unit)
Figure
Q’ty
Connection tube
(for wide tubing)
Connection tube
(for narrow tubing)
1
1
1
Part Name
605 Model
(6 hp)
705 Model
(8 hp)
905 Model
(10 hp)
1155 Model
(12 hp)
705 Model
(8 hp)
905 Model
(10 hp)
1155 Model
(12 hp)
0
0
1
1
1
0
0
1
1
1
1
0
0
0
1
0
0
0
0
0
1
1111
1
1
1
0
0
1
1
Instruction manual
Explanatory booklet
paper
paper
seal
Sub unit (constant speed) unit)
Main unit (DC inverter unit)
Seal label
hp = horsepower
04-408 InveterW_Techn_a-p50 12/16/04 3:12 PM Page 12

13
ø19.05
ø38.1
ø19.05
ø31.75
ø15.88
ø28.58
ø12.7
ø25.4
ø9.52
ø19.05
ø9.52
ø15.88
ø9.52
ø12.7
(mm)
(mm)
–
70.0
(25 hp)
42.0
(15 hp)
ø12.7
ø28.58
52.4
(19 hp)
42.0
(15 hp)
7.1
(2.5 hp)
7.1
(2.5 hp) 98.0
(35 hp) –
98.0
(35 hp)
16.0
(6 hp)
16.0
(6 hp)
70.0
(25 hp)
22.5
(8.1 hp)
ø9.52
ø22.22
22.5
(8.1 hp)
30.0
(11 hp)
30.0
(11 hp)
Below kW
Over kW
42.0
(15 hp)
Total capacity
after distribution
Tubing size Wide tubing
Narrow tubing
hp = horsepower
Unit: mm
1-5. Tubing Size
Table 1-11a Main Tubing Size (LA) Unit: mm
––––––––––––
–
–10
12
34
10
10
32
–10
10
85.0
30
–8
10
78.5
28
–
8
8
73.0
26
–
ø9.52
ø22.22
10
28.0
–
33.5
12
ø25.4
ø12.7
14
40.0
88
45.0
16
ø28.58
ø15.88
18
50.4
810
56.0
20
–
ø19.05
ø31.75
22
61.5
10 12
68.0
24
–
22.4
8
ø19.05
ø9.52
–
–
ø9.52
ø19.05
6
16.0 90.0
10
12
10
10
10
10
12 10
12 12
12
121010
101.0 106.5 113.0 118.0
40 42
ø38.1
44
10
46
ø19.05
12
48
12
135.0
–
130.0123.5
38
10
36
810
–
––
96.0
(6) (8) (10) (12) (12)(10)(10)(10) (12)(10)
(6) (12) (12)
(12) (12)(10) (10) (12) (12) (12)
(8) (10)
kW
kW
Total system
horsepower
Total system
horsepower
Combined
outdoor units
Combined
outdoor units
Wide tubing
(mm)
Wide tubing (mm)
Narrow tubing
(mm)
Narrow tubing (mm)
Table 1-12 Outdoor Unit Tubing Connection Size ( A–D)Unit: mm
22.5
ø9.52
22.4
16.0
ø22.22
ø9.52
22.4 28.0 33.5 28.1
28.0 33.5
33.6
ø19.05
ø12.7
ø25.4 ø19.05 ø22.22 ø25.4
ø9.52 ø12.7
Brazing connection
Brazing connection
Brazing connection
Brazing connection
ø9.52
Flare connectionFlare connection
Wide tubing
Balance
tubing
Main unit (DC inverter unit) Sub unit (constant speed unit)
kW
Narrow tubing
Note 1: “(6), (8), (10), (12)”in the combination table indicate the horsepower of the main units (DC inverter type). “8, 10, 12”
indicate the horsepower of sub units (constant speed type).
2: If future extension of the system is expected, select tubing diameters that are based on total horsepower after extension.
However, extension that requires increasing the tubing size by 2 steps is not possible.
3: The balance tubing (outdoor unit tubing) size is φ9.52.
■Size of tubing (LO1, LO2) between outdoor units
Select the size of tubing between outdoor units based on the main tubing size (LA) as given in the table above.
Table 1-11b Main Tubing Size After Distribution (LB, LC...)
Note: 1. In case the total capacity of connected indoor units exceeds the total capacity of the outdoor units, select the main
tubing size for the total capacity of the outdoor units. (Especially the main tubing segments of LA, LB and LF.)
04-408 InveterW_Techn_a-p50 12/16/04 3:12 PM Page 13

14
1-6. Straight Equivalent Length of Joints
Design the tubing system by referring to the following table for the straight equivalent length of joints.
Table 1-14 Straight Equivalent Length of Joints
Table 1-15 Required Copper Tubing Dimensions Unit: mm
1-7. Additional Refrigerant Charge
Additional refrigerant charge amount is calculated from the narrow tubing total length as follows.
Table 1-16 Amount of Refrigerant Charge Per Meter, According to Narrow Tubing Size
Wide tubing size (mm) 12.7 15.88 19.05 22.22 25.4 28.58 31.8 38.1
90°elbow 0.30 0.35 0.42 0.48 0.52 0.57 0.70 0.79
45°elbow 0.23 0.26 0.32 0.36 0.39 0.43 0.53 0.59
U-shape tube bent (R60 100 mm) 0.90 1.05 1.26 1.44 1.56 1.71 2.10 2.37
Trap bend 2.30 2.80 3.20 3.80 4.30 4.70 5.00 5.80
Y-branch distribution joint Equivalent length conversion not needed.
Ball valve for service Equivalent length conversion not needed.
Material 0
Copper tubing Outer diameter 6.35 9.52 12.7 15.88
19.05 22.22
Wall thickness 0.8 0.8 0.8 1.0
1.0
1.0
Material 1/2 H, H
Copper tubing Outer diameter 25.4 28.58 31.75 38.1
Wall thickness 1.0 1.0 1.1 1.35
Narrow tubing size Amount of refrigerant
charge/m (g/m)
φ6.35 26
φ9.52 56
φ12.7 128
φ15.88 185
φ19.05 259
φ22.22 366
Required amount of charge = (Amount of refrigerant
charge per meter of each size of narrow tube ×its tube
length) + (...) + (...)
*Always charge accurately using a scale for weighing.
Table 1-13 Indoor Unit Tubing Connection ( 1, 2... 40)Unit: mm
ø22.22
(mm)
(mm) ø15.88
ø9.52ø6.35
ø12.7 ø19.05
Wide tubing
Narrow tubing
Indoor unit type 791218
25 36 48 76 96
Note: Use C1220T-1/2H material for tubing over φ19.05.
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15
Table 1-17 Refrigerant Charge Amount at Shipment (for outdoor unit)
DC GRFMI 605 R GRFMI 705 R GRFMI 905 R GRFMI 1155 R
(kg) 7.5 10.0 10.0 10.0
AD –GRFM 705 R GRFM 905 R GRFM 1155 R
(kg) –10.0 10.0 10.0
1-8. Combination of Outdoor Units
As shown in Table 1-18, a DC unit can be used independently or in combination with an AD unit.
1-9. System Limitations
Table 1-19 System Limitations
CAUTION
●Sub units cannot be used independently.
Table 1-18 Combination of Outdoor Units
Total cooling capacity 16.0 22.4 28.0 33.5 40.0 45.0 50.4 56.0 61.5 68.0 73.0 78.5 85.0 90.0
(kW)
DC INV. unit (main) 605 705 905 1155 605 705 905 905 1155 1155 905 905 905 1155
AD unit (sub) 705 705 705 905 905 1155 705 905 905 905
705 705 905 905
Total cooling capacity 96.0 101.0 106.5 113.0 118.0 123.5 130.0 135.0
(kW)
DC INV. unit (main) 1155 1155 905 905 1155 1155 1155 1155
1155 1155 905 905 905 1155 1155 1155
AD unit (sub) 905 1155 905 905 905 905 1155 1155
705 905 905 905 905 1155
Max. No. allowable connected outdoor units 4
Max. capacity allowable connected outdoor units 135 kW (48 hp)
Max. connectable indoor units 40
Max. allowable indoor/outdoor capacity ratio 50 –130 %
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16
1-10. Tubing Length
Table 1-20 Ranges that Apply to Refrigerant Tubing Lengths and to Differences in Installation Heights
LO1
Max. 40cm
Max. 40cm
40
6
5
4
LD LELC
LB
LM
L2
L1
H1
H2
3
2
1
LH
L4
LG
LF
LA
A
B
1.
2.
C
D
R410A distribution joint
K70A060Z (for outdoor unit)
K70A059Z (for outdoor unit)
K70A058Z (for indoor unit)
K70A057Z (for indoor unit)
K70A056Z (for indoor unit)
LO2
(ø9.52)
H3
L5
Sub
unit
Sub
unit
Sub
unit
Main
unit
Balance tubing
Explanation of symbols
Distribution joint
(K70A056~60Z: purchased separately)
special tubing for R410A
Ball valve (BV: purchased
separately)
special valve for R410A
For
extension
For
extension
Main tubing length LM = LA + LB … ≤ 80 m
Main distribution tubes LC –LH are selected according to the capacity after the
distribution joint.
Sizes of indoor unit connection tubing 1 –40 are determined by the connection
tubing sizes on the indoor units.
3.
Note: Do not use commercially available T-joints for the liquid tubing and parts.
* Be sure to use special R410A distribution joints (K70A056~60Z: purchased separately)
for outdoor unit connections and tubing branches.
DC
BA
NOTE
1: The tubing size (LO1, LO2) connecting the outdoor units to one another is decided by the total capacity of the
outdoor units connected at tubing ends. The LO1 tubing size is determined by the total capacity of the 3 sub
units B, C, and D, which are connected after main unit A. The LO2 tubing size is determined by the total capaci-
ty of sub units C and D, which are connected after sub unit B. Refer to Table 1-11a.
2: If the maximum tubing length (L1) exceeds 90 m (or equivalent length), increase the size of both the narrow
and wide main tubing (LM) by 1 step. However, the maximum wide tubing size is φ38.1. In addition, it is not
necessary to increase the tubing sizes in the case of a 6-horsepower system. (Tubing reducers must be
obtained in the field.)
Items Marks Contents Length (m)
L1 Max. tubing length Actual length 150
Equivalent length 175
∆L (L2 –L4) Difference between max. length and min. 40
length from the No.1 distribution joint
LM Max. length of main tubing (at max. diameter) 80
1, 2~ 40 Max. length of each distribution tube 30
L1+ 1+2+~ 40 Total max. tubing length including length of 300
A+B+LF+LG+LH each distribution tube (only narrow tubing)
L5 Distance between PC and AD unit 10
H1 When outdoor unit is installed higher than indoor unit 50
When outdoor unit is installed lower than indoor unit 40
H2 Max. difference between indoor units 15
H3 Max. difference between outdoor units 4
L = Len
g
th, H = Hei
g
ht
Allowable tubing
length
>
>
Allowable elevation
difference
>
>
>
>
>
>
>
>
>
+
Select the installation location so that the length and size of refrigerant tubing are within the allowable range shown
in the figure below.
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17
WARNING
Always check the gas den-
sity limit for the room in
which the unit is installed.
1-11. Check of Limit Density
When installing an air conditioner in a room, it is neces-
sary to ensure that even if the refrigerant gas acciden-
tally leaks out, its density does not exceed the limit
level for that room.
If the density could exceed the limit level, it is neces-
sary to provide an opening between the unit and the
adjacent room, or to install mechanical ventilation
which is interlocked with the leak detector.
(Total refrigerant charged amount: kg)
(Min. indoor volume where the indoor unit is installed: m3)
≤Limit density 0.3 (kg/m3)
The limit density of refrigerant which is used in this unit
is 0.3 kg/m3(ISO 5149).
The shipped outdoor unit comes charged with the
amount of refrigerant fixed for each type, so add it to
the amount that is charged in the field. (For the refriger-
ant charge amount at shipment, refer to the unit’s
nameplate.)
1-12. Installing Distribution Joint
(1) Refer to “HOW TO ATTACH DISTRIBUTION
JOINT”enclosed with the optional distribution joint
kit (K70A060Z, K70A059Z, K70A058Z, K70A057Z,
K70A056Z).
(2) In order to prevent accumulation of refrigerant oil in
stopped units, if the main tubing is horizontal then
each branch tubing length should be at an angle that
is greater than horizontal. If the main tubing is verti-
cal, provide a raised starting portion for each branch.
(3) If there are height differences between indoor units
or if branch tubing that follows a distribution joint is
connected to only 1 unit, a trap or ball valve must be
added to that distribution joint. (When adding the ball
valve, locate it within 40 cm of the distribution joint.)
(Consult with Technibel separately concerning the
ball valve.)
If a trap or ball valve is not added, do not operate
the system before repairs to a malfunctioning
unit are completed. (The refrigerant oil sent
through the tubing to the malfunctioning unit will
accumulate and may damage the compressor.)
Minimum indoor volume & floor area as against the
amount of refrigerant is roughly as given in the follow-
ing table.
40.5
54.0
20 30 40 50 60 70 80 kg
67.5
81.0
94.5
108.0
121.5
135.0
148.5
162.0
175.5
189.0
202.5
216.0
229.5
243.0
256.5
270.0
m
2
m
3
Total amount of refrigerant
Min. indoor floor area (when the ceiling is 2.7 m high)
Min. indoor volume
Range below the
density limit of
0.3 kg/m
3
(Countermeasures
not needed)
Range above the
density limit of
0.3 kg/m
3
(Countermeasures
needed)
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
15 to 30°
B
A
BA
Tube branching methods (horizontal use)
Arrow view
Horizontal
line View as seen
from arrow
Ball valve
(BV: purchased
separately)
Main tubing
Types of vertical trap specifications
(If only 1 unit is connected, a ball
valve is also needed on this side.)
Indoor unit (1)
(When not using ball valve)
(When using ball valve)
Branch tubing is
directed upward.
(Each unit is
connected to tubing
that is either level or
is directed
downward.)
Main tubing
Indoor unit
More than
20 cm
Indoor unit (more than 2 units)
Horizontal
Indoor unit is directed downward
CAUTION
Pay special attention to any
location, such as a basement,
etc., where leaking refrigerant
can accumulate, since refrig-
erant gas is heavier than air.
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18
1-13. Optional Distribution Joint Kits
See the installation instructions packaged with the distribution joint kit for the installation procedure.
Table 1-21
1. K70A059Z
Use: For outdoor unit (Capacity after distribution joint is 68.0 kW or less.)
Table 1-22 Dimensions for connections of each part Unit: mm
2. K70A060Z
Use: For outdoor unit (Capacity after distribution joint is greater than 68.0 kW and no more than 135.0 kW.)
Table 1-23 Dimensions for connections of each part Unit: mm
I
53 395 74
230
126
340 50
130
CD
D
DD
D
CIH H
H
G
GG
E
EE
F
F
F
G
G
Narrow tubeWide tube
EFGGFE
Thermal insulation Thermal insulation
I
Example: (G below indicates inner diameter. below indicates outer diameter.)
Position A B C D E F G H I J
Dimension ––
φ28.58 φ25.4 φ22.22 φ19.05 φ15.88 φ12.7 φ9.52 –
Position A B C D E F G H I J
Dimension φ38.1 φ31.75 φ28.58 φ25.4 φ22.22 φ19.05 φ15.88 φ12.7 φ9.52 –
622
315
340 50
130
BA
D
E
F
195
BCD
IH
G
GG
F
EG
BA
I
H
HI
G
GFE EFG
Narrow tube
Wide tube
Insulator Insulator
Example: (G below indicates inner diameter. below indicates outer diameter.)
Model name Cooling capacity after distribution Remarks
1. K70A059Z 68.0 kW or less For outdoor unit
2. K70A060Z 135.0 kW or less For outdoor unit
3. K70A056Z 22.4 kW or less For indoor unit
4. K70A057Z 68.0 kW or less For indoor unit
5. K70A058Z 135.0 kW or less For indoor unit
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19
3. K70A056Z
Use: For indoor unit (Capacity after distribution joint is 22.4 kW or less.)
4. K70A057Z
Use: For indoor unit (Capacity after distribution joint is greater than 22.4 kW and no more than 68.0 kW.)
Table 1-24 Dimensions for connections of each part Unit: mm
5. K70A058Z
Use: For indoor unit (Capacity after distribution joint is greater than 68.0 kW and no more than 135.0 kW.)
Table 1-25 Dimensions for connections of each part Unit: mm
210 55
145 135
185 50
83
103
FFF
HG F
FG
H
GH J
J
J
HH
F
F
H
HH
Insulator Insulator
Wide tube Narrow tube
Example: (F below indicates inner diameter. below indicates outer diameter.)
FED
300 112 55 210 72
230
CCCDEF GH
C
CF
GG GHI J
141
145 GG
G
C
JIH
F
D
E
F
G
H
103
H
I
J
Narrow tube
Wide tube
Insulator Insulator
F
Example: (F below indicates inner diameter. below indicates outer diameter.)
Position A B C D E F G H I J
Dimension ––
φ28.58 φ25.4 φ22.22 φ19.05 φ15.88 φ12.7 φ9.52 φ6.35
Position A B C D E F G H I J
Dimension φ38.1 φ31.75 φ28.58 φ25.4 φ22.22 φ19.05 φ15.88 φ12.7 φ9.52 φ6.35
F
E
D
C
C
A
B
I
H
GF
E
BAC CDEF
FEDC CAB
GGFE
JIH
EFG
HIJ
F
H
G
90 105 112
340 72
130
G
G
J
45
B
BB
Wide tube
Narrow tube
Insulator Insulator
F
Example: (F below indicates inner diameter. below indicates outer diameter.)
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20
1-14. Optional Ball Valve Kits
Table 1-26
1. Because the diameter of this ball valve is approximately the same as the inner diameter of the connecting cop-
per tube, correction for pressure loss is not necessary.
2. Airtightness must be 3.8 MPa or more.
* It is recommended that this part be installed at each outdoor unit (wide tube and narrow tube), in order to pre-
vent refrigerant from being released into the atmosphere if the outdoor unit is eventually replaced.
Dimensions Unit: mm
NOTE
Valve connecting tube size (mm) Indoor unit where used
Model No. Wide tube Narrow tube Balance valve Outdoor unit where used Total capacity of indoor units
after the valve
BV-RXP335AG 25.4 12.7 –12 hp More than 30.0 kW and less than 42.0 kW
BV-RXP280AG 22.22 9.52 –10 hp Less than 30.0 kW
BV-RXP224AG 19.05 9.52 –6, 8 hp 22.4 kW or less
BV-RXP160AG 15.88 9.52 –– 16.0 kW or less
BV-RXP56AG 12.7 6.35 –– 5.6 kW or less
BV-RP3G –– 9.52 For balance tube –
A
E
D
B
C
Service port
30˚
2 - ø7
Insulator
(divided in 2)
A
Insulator
(divided in 2) Service port
30˚
2 - ø7
E
D
B
C
A
Insulator
(divided in 2) Service port
2 - ø7
30˚
E
D
B
C
ø6.35 (1/4")
ø9.52 (3/8")
ø12.7 (1/2")
ø15.88 (5/8")
ABCDE
ø19.05 (3/4")
ø22.22 (7/8")
ø25.4 (1") 250 55 69 36 84.5
72
76
89
108
42
42
42
51
54
54
58
68
16
16
20
22
44
44
51
56
250
250
51
51
68
68
22
22
56
56
Type with flare nut at each end
Type that is welded at each end
Type that is welded at each end
Dimensions
Size
Figure
Note: Install the service port so that it faces the extension side.
hp: horse power
04-408 InveterW_Techn_a-p50 12/16/04 3:12 PM Page 20