Mitsubishi PKA-A12GA, PKA-A12GAL, PKA-A18GA, PKA-A18GAL Installation Guide

,_ MITSUBISHI

ELECTRIC

$LIII

Air-Co "

PKA-A.GA PKA-A.GAL

iNSTALLATiON MANUAL

For safe and correct use, read this manual and the outdoor unit installation manual thoroughly before installing the air-conditioner unit.

MANUAL DE INSTALACION

Para un uso correcto y seguro, lea detalladamente este manual y el manual de instalaci6n de la unidad exterior antes de instalar la unidad de aire acondicionado.

Contents

1. Safety precautions ................................................................................... 2 5. Drainage piping work ............................................................................... 6

2. Installation location .................................................................................. 3 6. Electrical work .......................................................................................... 7

3. Installing the indoor unit ........................................................................... 3 7. Test run .................................................................................................. 12

4. Installing the refrigerant piping ................................................................. 5 8. Easy maintenance function (Option) ...................................................... 15

1. Safety precautions

Before installing the unit, make sure you read all the "Safety precau- tions".

Please report to your supply authority or obtain their consent before connecting this equipment to the power suppmysystem.

Warning:

Describes precautions that must be observed to prevent danger of injury or death to the user.

Z_ Caution: Describes precautions that must be observed to prevent damage to the unit.

Warning:

,, Ask a dealer or an authorized technician to install the unit. ,, For installation work, follow the instructions in the Installation Manual and use

tools and pipe components specifically made for use with refrigerant specified in the outdoor unit installation manual

, The unit must be installed according to the instructions in order to minimize

the risk of damage from earthquakes, typhoons, or strong winds. An incor- rectly installed unit may fall down and cause damage or injuries.

,, The unit must be securely installed on a structure that can sustain its weight.

,, if the air conditioner is installed in a small room, measures must be taken to

prevent the refrigerant concentration in the room from exceeding the safety limit in the event of refrigerant leakage. Should the refrigerant leak and cause

the concentration limit to be exceeded, hazards due to lack of oxygen in the room may result.

1.1. Before installation (Environment)

Caution:

,, Do not use the unit in an unusuam environment, if the air conditioner is in-

stalmedin areas exposed to steam, vomatimeoim(incmuding machine oim),or sulfuric gas, areas exposed to high salt content such as the seaside, the performance can be significantmy reduced and the internam parts can be damaged.

,, Do not install the unit where combustible gases may leak, be produced, flow,

or accumulate. If combustible gas accumulates around the unit, fire or explo- sion may resumt.

,, Do not keep food, plants, caged pets, artwork, or precision instruments in the

direct airflow of the indoor unit or too close to the unit as these items can be damaged by temperature changes or dripping water.

1.2. Before installation or relocation

Caution:

,, Be extremely carefum when transporting the units.Two or mote persons are

needed to handle the unit as it weighs 20 kg, 44 Ibe or more. Do not grasp the packaging bands. Wear protective gloves as you can injure your hands on the fins or other parts.

,, Be sure to safely dispose of the packaging materials. Packaging materiame,

such as naimsand other metam or wooden parts may cause stabs or other injuries.

1.3. Before electric work

Caution:

,, Be sure to install circuit breakers, if not installed, electric shock may result.

,, For the power lines, use standard cables of sufficient capacity. Otherwise, a

short circuit, overheating, or fire may result.

,, When installing the power lines, do not apply tension to the cables.

After installation work has been completed, explain the "Safety precautions;' use, and maintenance of the unit to the customer according to the information in the Operation Manual and perform the test run to ensure normal operation. Both the Installation Manual and Operation Manual must be given to the user for keeping. These manuals must be passed on to subsequent users.

(_: Indicates which must be

Warning:

Carefully read the labels affixed to the main unit.

o Ventilate the room if refrigerant leaks during operation, if refrigerant comes

into contact with a flame, poisonous gases will be released.

, All electric work must be performed by a qualified technician according to

local regulations and the instructions given in this manual. , Use only specified cables for wiring. , The terminal block cover panel of the unit must be firmly attached. o Use only accessories authorized by Mitsubishi Electric and ask a dealer or

an authorized technician to instammthem. , The user shoumd never attempt to repair the unit or transfer it to another moca-

tion. o After installation has been completed, check for refrigerant leaks, if refriger-

ant leaks into the room and comes into contact with the flame of a heater or

portabme cooking range, poisonous gases will be released.

o When the room humidity exceeds 80% or when the drainpipe is cmogged, wa-

ter may drip from the indoor unit. Do not install the indoor unit where such

dripping can cause damage. , When installing the unit in a hospital or communications office, be prepared

for noise and electronic interference. Inverters, home appliances, high-fre-

quency medical equipment, and radio communications equipment can cause

the air conditioner to malfunction or breakdown.The air conditioner may also

affect medical equipment, disturbing medical care, and communications equip-

ment, harming the screen display quality.

o Thermal insulation of the refrigerant pipe is necessary to prevent condensa-

tion. if the refrigerant pipe isnot properly insulated, condensation will be formed. o Place thermal insulation on the pipes to prevent condensation, if the drain-

pipe is installed incorrectly, water leakage and damage to the ceiling, floor,

furniture, or other possessions may result. , Do not clean the air conditioner unit with water. Electric shock may result. , Tighten all flare nuts to specification using a torque wrench. If tightened too

much, the flare nut can break after an extended period.

o Be sure to ground the unit. if the unit is not properly grounded, electric shock

may result. , Use circuit breakers (ground fault interrupter, isolating switch (+B fuse), and

molded case circuit breaker) with the specified capacity. If the circuit breaker

capacity is larger than the specified capacity, breakdown or fire may result.

part grounded.

1.4. Before starting the test run

/_ Caution: ,, Turn on the main power switch more than 12 hours before starting operation.

Starting operation just after turning on the power switch can severely dam- age the internal parts.

, Before starting operation, check that all panels, guards and other protective

parts are correctly installed. Rotating, hot, or high voltage parts can cause injuries.

o Do not operate the air conditioner without the air filter set in place, if the air

filter is not installed, dust may accumulate and breakdown may result. , Do not touch any switch with wet hands. Electric shock may result. , Do not touch the refrigerant pipes with bare hands during operation. , After stopping operation, be sure to wait at least five minutes before turning off

the main power switch. Otherwise, water meakage or breakdown may resumt.

2. Installation location

®T

Fig. 2-1

3. Installing the indoor unit

2.1. Outline dimensions (indoor unit) (Fig. 2-1)

Select a proper position allowing the following clearances for installation and mainte-

nance. (mm)

Models W B H (_) _ _F_ _G_ (_

A12, A18 39 9-1/4 13-3/8 Min.l-13/16 Max.5 Max.7-3/32Min.l-31/32Min.5-29/32

Mount the indoor unit on a ceiling strong enough to withstand the weight of the

unit.

990 235 340 Mn 30 Max 130 Mn 180 Mn 50 Mn 160

_ Ceiling © Wall @ Furnishing, etc

Warning:

(inch)

2.2. Outline dimensions (Outdoor unit)

Refer to the outdoor unit installation manual.

3.1. Check the indoor unit accessories (Fig. 3-1)

The indoor unit should be supplied with the following accessories.

PARTNUMBER

d_ ® ® ® ® ®

® ® ® ®

(_) - ® are stored in a cut-out section of the packing material (styrofoam).

ACCESSORY

Mount board

Tapping screw 4 × 35

Pipe cover Band

Felt tape Wireless remote controller

Remocon holder Alkali batteries (size AAA)

Mount piece (Package) Wired remote controller

Drain adaptor

QUANTITY

1 5 3 1 1 2 1 1 1

LOCATIONOFSETTING

Fixatthe backofthe unit

Set inside the unit

for PKA-A,GAL

for PKA-A,GA

Fig. 3-1

(inch)

3.2. installing the wall mounting fixture (Fig. 3-2)

3.2.1. Setting the wall mounting fixture and piping positions Using the wall mounting fixture, determine the unit's installation position

and the locations of the piping holes to be drilled.

z_ Warning: Before drilling a hole in the wall, you must consult the building contractor.

Supporting piece _ Mount board © Main body @ Slot (6-11 x 20,

8P-7/16 x 25/32 inch)

Unit center CF}Bolt hole (14-o14 ram,

14P-9/16 inch) _) Tapping hole (49-o5 ram,

49P-3/16 inch)

CH}Bottom left pipe slot

(o90 mm, 3-9/18 inch)

Bottom left pipe slot knockout hole

(_) Bottom right pipe slot (o90 ram, 3-9/16 inch)

Bottom right pipe slot knockout hole _L_Liquid pipe flare connection position @ Gas pipe flare connection position (_) Level setting standard _) Insert scale.

Hole centre (_) Align the scale with the line.

®®

Fig. 3-2

3.2.2. Drilling the piping hole (Fig. 3-3) Use a core drill to make a hole of 90-100 ram, 3-9/16 to 4 inch diameter in the

wail in the piping direction, at the position shown in the diagram to the left. The hole should incline so that the outside opening is lower than the inside

opening.

Sleeve

_ Hole

I_ Insert a sleeve (with a 90 ram, 3-9/16 inch diameter and purchased locally)

through the hole.

Note:

The purpose of the hole's inclination is to promote drain flow.

Fig. 3-3

3. Installing the indoor unit

Fig. 3-4

Fig. 3-5

@ Min. 140 ram,

5-1/2 inch

_) Min. 300 ram,

11-13/16 inch

2-3/16 inch

@ Mount board

3.2.3. Installing the wall mounting fixture II_ Since the indoor unit weighs near 30 kg, 66 Ibs selection of the mounting

location requires thorough consideration. If the wall does not seem to be strong enough, reinforce it with boards or beams before installation.

II_ The mounting fixture must be secured at both ends and at the centre, if

possible. Never fix it at a single spot or in any nonsymetrical way.

(If possible, secure the fixture at all the positions marked with a bold arrow.)

(Fig. 3-4) z_ Warning: If possible, secure the fixture at all positions indicated with a bold arrow.

z_ Caution: o The unit body must be mounted horizontally.

o Fasten at the holes marked with A as shown by the arrows.

_) Fasten athread to the hole.

_ The levelcan be easily obtained by hanging a weight fromthestring andaligningthe string

with the mark.

3.3. When embedding pipes into the wall (Fig. 3-5)

• The pipes are on the bottom left.

• When the cooling pipe, drain pipes internal/external connection lines etc are to be

embedded into the wall in advance, the extruding pipes etc, may have to be bent and have their length modified to suit the unit.

• Use marking on the mount board as a reference when adjusting the length of the

embedded cooling pipe.

• During construction, give the length of the extruding pipes etc some leeway.

(_)Mount board

(_)Reference marking forflare connection

C-C)Through hole

(_)On-site piping

3.4. Preparing the indoor unit

Rear, right and lower piping (Fig. 3-6)

1. Bind the cooling pipe and drain pipe together.

• Bind the pipes together with vinyl tape at three or more points. This will facilitate

passing the pipes through the wall.

Fig. 3-6

2. Remove the corner box and knock out the knockout holes as necessary.

• Remove the corner box by pushing in a downward direction (_), while at the same

time, pressing in the upper side part of the corner box (_.

(_)Corner box

(_)Under cover

Left and left rear piping (Fig. 3-7)

1. Remove the under cover.

• Remove the under cover by sliding it towards the rear of the unit @, while at the

same time, pressing the two points marked by arrow heads (_.

2. Remove the corner box and knock out the knockout holes as necessary.

Fig. 3-7

_ _....

_o_)

3.5. Mounting the indoor unit

1. Affix the mounting plate to the wall.

2. Hang the indoor unit on the two hooks positioned on the upper part of the mount-

ing plate.

Rear, right and lower piping (Fig. 3-8)

3. Affix the indoor unit.

4. After connecting the pipes, put the corner box back to where it was (follow the

removal steps backwards).

(_)Square hole

(_)Hooks

Fig. 3-8

(inch)

Fig. 3-9

Left and left rear piping (Fig. 3-9)

3. Cut out a mounting piece from the packaging material.

4. Pull the indoor unit up towards yourself as shown in the figure below and slide the

mounting piece in to the mounting plate using the mounting piece setting marks

as reference.

5. After connecting the pipes and wiring, put the under cover back to where it was,

and remove the mounting piece and affix the indoor unit as shown in the left

figure.

6. Put the corner box back to where it was.

(_)Mounting piece

(_)Ceiling

4. Installing the refrigerant piping

@ Flare cutting dimensions

45o_+2°

Copper pipe O.D. Flare dimensions

(mm, inch) sA dimensions (mm, inch)

06.35, 1/4" 8.7 - 9.1,11/32-23/64

09.52, 3/8" 12.8- 13.2, 1/2-33/64 o12.7, 1/2" 16.2 - 16.6, 41/64-21/32

el 5.88, 5/8" 19.3 - 19.7, 49/64-25/32

Fig. 44

(inch)

4.1. Precautions

4.1.1. For devices that use R410A refrigerant

. Use ester oil, ether oil, a(kyibenzene oil (small amount) as the refrigeration oil

applied to the flared sections.

. Use Cl 220 copper phosphorus, for copper and copper alloy seamless pipes,

to connect the refrigerant pipes. Use refrigerant pipes with the thicknesses

specified in the tab(e to the be(ow. Make sure the insides of the pipes are clean and do not contain any harmful contaminants such as sulfuric com-

pounds, oxidants, debris, or dust.

Z_ Warning:

When installing or moving the air conditioner, use only the specified refriger- ant (R410A) to charge the refrigerant lines. Do not mix it with any other refriger-

ant and do not a((ow air to remain in the (ines. Air enclosed in the (ines can cause pressure peaks resulting in a rupture and other hazards.

Liquid pipe e6.35mm, 1/4 inch thickness 0.8 mm, 1/32 inch

I A12, A18

Gas pipe e12.7mm, 1/2 inch thickness 0.8 mm, 1/32 inch

Do not use pipes thinner than those specified above.

4.2. Connecting pipes (Fig. 4-1)

= When commercially available copper pipes are used, wrap liquid and gas pipes

with commercially available insulation materials (heat-resistant to 100 °C, 212 °F or more, thickness of 12 ram, 1/2 inch or more).

= The indoor parts of the drain pipe should be wrapped with polyethylene foam insu-

lation materials (specific gravity of 0.03, thickness of 9 ram, 23/64 inch or more).

= Apply thin layer of refrigerant oil to pipe and joint seating surface before tightening

flare nut.

= Use two wrenches to tighten piping connections. = Use refrigerant piping insulation provided to insulate indoor unit connections. Insu-

late carefully.

(_) Flare nut tightening torque

Copper pipe O.D.

(mm, inch)

06.35, 1/4" e9.52, 3/8" o12.7, 1/2"

o15.88, 5/8"

Flare nut O.D. Tightening torque

(mm, inch) (N.m, ft4bs!

17, 43/64 14 - 18, 10-13

22, 7/8 34 - 42, 25-30 26, 1-3/64 49 - 61, 35-44 29, 1-9/64 68 - 82, 49-59

Avaimabmepipe size

A12, A18

Liquid side

Gas side

O : Factory flare nut attachment to the heat-exchanger.

06.35

o12.7

4. Installing the refrigerant piping

_'_ #............................................................................................................................................................................1_ (inch)

..................................................................................................;;

U_ ........ _ '_)

@2......@

Fig. 4=2

4.3. Positioning refrigerant and drain piping

(_) Position of refrigerant and drain piping (Fig. 4-2)

• The drain pipe can be cut midway to meet the on-site conditions. (_)(Totallength offlexible hose) @ Drain hose (_)Liquid pipe _E}Left-side piping © Gas pipe _} Right-side piping

® Determine the position o1 the knockout holes on the unit body. (Fig. 4-8)

II_ Cut the knockout holes using a saw blade or an adequate knife.

Take care not to damage other parts of the unit.

® ® ® Remove the corner box and drill a knockout hole. If a hole is made without remov-

ing the box, the drain hose could be damaged.

(_) Left-side piping _D}Remote controller cable through hole (_) Lower piping (E} Corner box _C)Right-side piping

Fig. 4=3

Fig. 4=4

4.4. Refrigerant piping (Fig. 4=4)

1. Remove the flare nut and cap of the indoor unit.

2. Make a flare for the liquid pipe and gas pipe and apply refrigerating machine oil (available from your local supplier) to the flare sheet surface.

3. Quickly connect the on site cooling pipes to the unit.

4. Wrap the pipe cover ® that is attached to the gas pipe and make sure that the connection join is not visible.

5. Wrap the pipe cover of the unit's liquid pipe and make sure that it covers the insulation material of the on site liquid pipe.

6. Use the bands that are provided _') to tighten both ends (15-20mm, 19/32 to 25/32 inch) o1each pipe cover ®.

(_)Cooling pipe and insulation (availablefrom local supplier) (_)Unit'sgas pipe _} Bands (_0 _c)Unit'sliquid pipe (_F_On site gas pipe (_)Pipecover _ _) On site liquid pipe

5. Drainage piping work @ ®

Fig. 5=1

,',._:3_#ia ,;J,

@bx:_.... .....................,

Fig. 5=2

4.5. For twin combination

Refer to the outdoor unit unstallation manual.

5.1. Drainage piping work (Fig. 5-1)

• Use a PVC pipe (I.D. o20mm, 13/16 inch) for drain piping and provide 1/100 or more downward slope.

• Other PVC pipe sizes are available with the drain adaptor supplied.

• Make sure that there is no water leakage from the connections.

• If the drain pipe passes indoors it must be covered with insulating material (foamed polyethylene: specific gravity: 0.03, thickness: 9 mm, 23/64 inch or more) available on the market.

• Do not put the drain piping directly in a drainage ditch where sulphuric gas may be

generated.

• When piping has been completed, check that water flows from the end of the drain pipe.

(_)Drain connectionsocket © Indoor unit's drain hose (_)Field drain pipe

Caution:

The drain pipe should be installed according to this Installation Manual to en- sure correct drainage. Thermal insulation of the drain pipes is necessary to

prevent condensation. If the drain pipes are not properly installed and insu- lated, condensation may drip on the ceiling, floor or other possessions.

Preparing left and left rear piping (Fig. 5-2)

(_) Remove the drain cap.

• Remove the drain cap by holding the bit that sticks out at the end of the pipe and pulling.

(_)Drain cap

® Remove the drain hose.

• Remove the drain hose by holding on to the base of the hose (_ (shown by arrow) and pulling towards yourself (_).

® Insert the drain cap.

• Insert a screwdriver etc into the hole at the end of the pipe and be sure to push to the base of the drain cap.

_) Insert the drain hose.

• Push the drain hose until it is at the base of the drain box connection outlet.

• Please make sure the drain hose hook is fastened properly over the extruding drain box connection outlet.

(_)Hooks

Remove the side panel of the indoor unit on the drain side. Pour water in the drain pan and check that it comes out the drain pipe end. After confirmation, reinstall the

side panel.

6. Electrical work

Fig. 6-1

6.1.1. indoor unit power supplied from outdoor unit (A-control application) The following connection patterns are available.

The outdoor unit power supply patterns vary on models.

6.1. Indoor unit (Fig. 6-1)

1. Remove the corner box.

2. install each wire into the unit.

3. Open the front grill, remove 1 tapping screw and remove the terminal block cover.

@ Terminal block cover

4. Connect each wire properly to the terminal block. o In consideration of future servicing, please leave some leeway for the wiring length.

5. Put all the parts back the way they were.

6. Use a clamp from the bottom of the electric parts box to fasten each wire.

I_ Fix power source wiring to control box using buffer bushing for tensile force.

(PG connection or the like.)

A means for the disconnection of the supply with an isolation switch, or similar de-

vice, in all active conductors shall be incorporated in the fixed wiring.

_p Terminal block for Indoor/outdoor connecting © Terminal block for power supply (separate indoor/outdoor unit power supplies, K-control ap-

plication)

@ Earth point

Clamp CF_Terminal block for remote controller (Only for PKA-A.GA) _) Conduit plate CH_Bush (Purchased locally) Ci_Lock nut (Purchased locally) _3_Connector (Purchased locally) (K_Conduit (Purchased locally)

(_ (_ _ Wiring circuit breaker or isolating switch

(_ IIi _ Remote controller (Only for PKA-A.GA)

LCJ _/-_/

i_! CF)Indoor unit

_! _) Indoor unit earth

* Affix a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.

(_ (_ (_ _ Wiring circuit breaker or isolating switch

@ I , I I ®Remotecontroller(Only for PKA-A.GA)

H! CF_Indoor unit

L¢i _O_, I _) Indoor unit earth

* Affix a label A that is included with the manuals near each wiring diagram for the indoor and outdoor units.

Indoor unit model Indoor unit power supply

Minimum circuit ampacity Maximum rating of overcurrent protective device

Indoor unit power supply

u_ _ Indoor unit power supply earth

•__o

•- z Indoor unit-Outdoor unit 41 _ Indoor unit earth

_: Remote controller-Indoor unit 42

Indoor unit L1-L2 43

,_, ._ Indoor unit-Outdoor unit $1-$2 43

"_ Indoor unit-Outdoor unit $2-S3 43

Remote controller-Indoor unit 43

"1. Max. 50 m, 168ft *2. The 10 m, 30 ft wire is attached in the remote controller accessory. Max. 800 m, 1800 ft <Only for PKA-A.GA> *3. The figures are NOT always against the ground.

$3 terminal has DC 24 V against $2 terminal. However between $3 and $1, these terminals are not electrically insulataed by the transformer or other device.

Notes:

1. Wiring size must comply with the applicable local and national code.

2. Use copper supply wires.

3. Use wires rated 300V or more for the power supply cables and the indoor unit/outdoor unit connecting cables.

4. Install an earth longer than other cables.

PKA

15A

3 x AWGf6 (polar)

t x Min. AWG16

2 x AWG22 (Non-polar)

AC 208/230 V

DC24 V DCf2V

@ Outdoor unit power supply

6. Electrical work

6.1.2. Separate indoor unit/outdoor unit power suppJies (A-controJ appJication)

The following connection patterns are available. The outdoor unit power supply patterns vary on models.

* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.

._._ ® ®

(_) Outdoor unit power supply © Wiring circuit breaker or isolating switch © Outdoor unit © Indoor unit/outdoor unit connecting cords © Remote controller (Only for PKA-A.GA) (_ Indoor unit (G'_Indoor unit power supply

@ I

I '

* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.

If the indoor and outdoor units have separate power supplies, refer to the table at the below. Change the indoor unit electrical box wiring refering to the figure in the right and the DIP switch settings of the outdoor unit control board.

Indoor unit specifications

Indoor unit electrical box connector con- nection change Required

Label affixed near each wiring diagram Required for the indoor and outdoor units

Outdoor unit DIP switch settings (when using separate indoor unit/outdoor unit L£3__ power supplies only) _ (SW8)

Ao, _

Indoor unit power supplied from outdoor unit (when shipped from factory)

There are three types of labels (labels A, B, and C). Affix the appropriate labels to the units according to the wiring method.

Indoor unit model Indoor unit power supply

Minimum circuit ampacity Maximum rating of overcurrent protective device

,_ Indoor unit power supply

Indoor unit power supply earth

;_ Indoor unit-Outdoor unit "1

'_ Indoor unit earth

_: Remote controller-Indoor unit *2

Indoor unit L1-L2 *3

R ._ Indoor unit-Outdoor unit $1-$2 *3

_- _ Indoor unit-Outdoor unit $2-$3 *3

Remote controller-Indoor unit *3

41. Max. 80m, 165ft

42. The 10 m, 30 ft wire is attached in the remote controller accessory. Max. 800 m, 1800 ft

43. The figures are NOT always against the ground.

Notes:

1. Wiring size must comply with the applicable local and national code.

PKA

Single 208/230 V, 60 Hz

18A 2x Min. AWG16 1 x Min. AWG16

2 x AWG22 (polar)

2 x AWG22 (Non-polar)

AC 208/230 V

DC24 V DC12 V

2. Use copper supply wires.

3. Use wires rated 300V or more for the power supply cables.

4. mnstaNman earth monger than other cabmes.

Connectors (connections when shipped from the factory are for indoor unit power

supplied from outdoor unit)

Separate indoor unit/outdoor unit power supplies

If the indoor and outdoor units have

separate power supplies, change the connections of the

connectors as shown in the following

figure.

Connectors

6. Electrical work

6.1.3. K-control application

The following connection patterns are available. The outdoor unit power supply patterns vary on models.

® ®

Set the DIP switch of the indoor unit control board.

SW5 1 2 3 SW5-1 :ON SW5-2, 3 : OFF

Set the DIP switch of the indoor unit control board.

SW5 1 2 3 SW5-1,2 :ON SW5-3 : OFF

(_) Outdoor unit power supply (_) Wiring circuit breaker or isolating switch C-C}Outdoor unit (_) Indoor unit/outdoor unit connecting cords

Remote controller (Only for PKA-A.GA) (_ Indoor unit <For heat pump models> (G'_Indoor unit <For cooling only models> (_ Indoor unit power supply

* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.

<For heat pump models> <For cooling only models> _) Outdoor unit power supply

Set the DIP switch of the indoor unit control board.

(_ Main indoor (_ Sub indoor

(_) Wiring circuit breaker or isolating switch C-C}Outdoor unit (_) Indoor unit/outdoor unit connecting cords _E_Remote controller (Only for PKA-A.GA) (_ Main indoor unit <For heat pump models> (G'_Sub indoor unit <For heat pump models> (_ Indoor unit power supply (_) Main indoor unit <For cooling only models>

Sub indoor unit <For cooling only models>

123 1123 I

SW5

SW5-1 : ON SW5-1 : ON SW5-2 : OFF SW5-2 :OFF

SW5-3 : OFF SW5-3 :ON

1 23 1 23 I

SW5

SW5-1 : ON SW5-1 : ON SW5-2 : ON SW5-2 : ON

SW5-3 : OFF SW5-3 : ON

* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.

To change to K-control, set the DIP switch (SW5) of the indoor unit control board as shown in the above figure and change the electric wiring of the indoor unit as shown in the right figure. Set up Dip switch after turning off Power supply switch. Be careful that setting the DIP switch (SW5) of the indoor unit control board varies between the heat pump models and cooling models of the outdoor unit.

DIP switch (SW5)

SW5-1 A_CONTROL K-CONTROL SW5-2 heat pump models cooling only models _ Dip switch SW5-2 and SW5-3 is effective only

OFF ON

sw5-3 MAIN SUB _Jwhen Dip switch SW5-1 (K-CONTROL) is ON.

* There are three types of labels (labels A, B, and C). Affix the appropriate labels to

the units according to the wiring method.

Indoor unit model PKA Indoor unit power supply Single 208/230 V, 60 Hz

Minimum circuit ampacity 1 A Maximum rating of overcurrent protective device 15A

Indoor unit power supply 2 x Min. AWG16

-_ Indoor unit power supply earth 1 x Min. AWG16 × H/P: 3 x AWG22 (polar)

Indoor unit-Outdoor unit "1

_;_ C/O: 2 x AWG22 (polar)

Indoor unit earth Remote controller-Indoor unit *2 2 x AWG22 (Non-polar)

Indoor unit L1-L2 *3 AC 208/230 V

# _ Indoor unit-Outdoor unit $1-$2 *3 DC12 V E "_ Indoor unit-Outdoor unit $1 -$3 *3 D012 V _5

Remote controller-Indoor unit *3 DC12 V

41. Max. 50 m, 185 ft

42. The 10 m, 30 ft wire is attached in the remote controller accessory. Max. 500 m, 1500 ft

43. The figures are NOT always against the ground.

Notes:

1. Wiring size must comply with the applicable local and national code.

2. Use copper supply wires.

3. Use wires rated 300V or more for the power supply cables.

4. mnstamman earth monger than other cabmes.

Connectors

INDOOR UNIT

CONTROL BOARD

To change to the K-control,

make sure to change the

INDOOR UNIT

CONTROL BOARD

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