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40KMC

/

38HDF

40KMQ

/

38QRF

In—Ceiling

Cassette

Duct—Free

Split

System

Sizes

018

to

036

turn

to

the

experts

fF

Installation

Instructions

40KMC,

KMQ

Unit

38HDF/QRF

Unit

NOTE:

Read

the

entire

instruction

manual

before

starting

the

installation.

CA

UA

Le:

UNIT

OPERATION

AND

SAFETY

HAZARD

Failure

to

follow

this

warning

could

result

in

personal

injury

or

equipment

damage.

Puron

refrigerant

systems

operate

at

higher

pressures

than

standard

R-22

systems.

To

avoid

damage

to

the

unit

or

possible

personal

injury,

do

not

use

R-22

service

equipment

or

components

on

Puron

refrigerant

equipment.

SAFETY

CONSIDERATIONS

Improper

installation,

adjustment,

alteration,

service,

maintenance,

or

use

can

cause

explosion,

fire,

electrical

shock,

or

other

conditions

which

may

cause

death,

personal

injury,

or

property

damage.

Consult

a

qualified

installer,

service

agency,

or

your

distributor

or

branch

for

information

or

assistance.

The

qualified

installer

or

agency

must

use

factory-authorized

kits

or

accessories

when

modifying

this

product. Refer

to

the

individual

instructions

packaged

with

the

kits

or

accessories

when

installing.

Follow

all

safety

codes.

Wear

safety

glasses,

protective

clothing,

and

work

gloves.

Use

quenching

cloth

for

brazing

operations.

Have

fire

extinguisher

available.

Read

these

instructions

thoroughly

and

follow

all

warnings

or

cautions

included

in

literature

and

attached

to

the

unit.

Consult

local

building

codes

and

current

editions

of

the

National

Electrical

Code

(

NEC

)

NFPA

70.

In

Canada,

refer

to

current

editions

of

the

Canadian

electrical

code

CSA

22.1.

Recognize

safety

information.

This

is

the

safety-alert

symbol

A

When

you

see

this

symbol

on

the

unit

and

in

instructions

or

manuals,

be

alert

to

the

potential

for

personal

injury.

Understand

these

signal

words;

DANGER,

WARNING,

and

CAUTION.

These

words

are

used

with

the

safety-alert

symbol.

DANGER

identifies

the

most

serious

hazards

which

will

result

in

severe

personal

injury

or

death.

WARNING

signifies

hazards

which

could

result

in

personal

injury

or

death.

CAUTION

is

used

to

identify

unsafe

practices

which

would

result

in

minor

personal

injury

or

product

and

property

damage.

NOTE

is

used

to

highlight

suggestions

which

will

result

in

enhanced

installation,

reliability,

or

operation.

ELECTRICAL

SHOCK

HAZARD

Failure

to

follow

this

warning

could

result

in

personal

injury

or

death.

Before

installing,

modifying,

or

servicing

system,

main

electrical

disconnect

switch

must

be

in

the

OFF

position.

There

may

be

more

than

1

disconnect

switch.

Lock

out

and

tag

switch

with

a

suitable

warning

label.

PERSONAL

INJURY

AND

EQUIPMENT

DAMAGE

HAZARD

Failure

to

follow

this

caution

may

result

in

personal

injury

and

/

or

equipment

damage.

DO

NOT

operate

the

unit

without

a

filter

or

with

grille

removed.

DIMENSIONS

-

INDOOR

40KMC018

Adjacent

Room

Supply

10-5/IRST5}

al

@

=

a

es

«

&

g

g|

.|2

MWe

=

=

°|

=|

6

Net

=P

abe

Ta

=

=

‘

—

©

Supply

air

Supply

air

=

_

2'-4-11/32"(720)

_

Return

air

1'-9-21/32"(650)

Model

|

Unit

Size

Operating

Weight

Ib

kg

40KMC

18

49

22.3

FRESH

AiR

41-8

9/32"(515)

Return

40KMC024-036

/

40KMQ018-036

3-1-5

1164"(960)

INLET

Operating

Weight

Model

|

Unit

Size

PPS

Ib

kg

024

91

414

40KMC

030

/

036

95

43.2

018/024

91

414

40KMQ

030

/

036

95

43.2

NOTE:

Dimensions

in

()

are

in

mm.

A08447

Fig.

1

-

40KMC,KMQ

Indoor

Unit

Dimensions

2

DIMENSIONS

-

OUTDOOR

JUNCTION

BOX

FOR————————

POWER

SUPPLY

&

CONTROL

CONNECTIONS

FIELD

CONTROL

SUPPLY]

.

WIRE_ENTRY

2/8"

(22.2)

HOLE

W/GROMMET

K-11

1/2"

(38.19

SERVICE

PORTS

CADDITIONAL

PORTS

*

PROVIDED

INSIDE

COMPRESSOR

ACCESS)

“M"DIA

VAPOR

LINE

CONN.

FEMALE

SWEAT

CONN.

3/8”

DIA.

(9.53)

LIQUID

LINE

FEMALE

SWEAT

CONN*

WIND

BAFFLE

ACCESSORY

DRAIN

HOLES

eTYP)

L

!

oe

gt

Torna

ape

2042

L—

aia

oad

fr

\

(25)

|

\

3

9/16"

pela

RIGHT

SIDE

VEIW

“

|

(406)

,|

TYP

pe

SNOW

STAND

ACCESSORY

~~

(FIELD

PROVIDED

AND

INSTALLED)

Je]

“-7

1/25

agi)

nae

P

|

-v

f

f

|

F

“or

aL

—

o’-0

11716"

as)

el

on

UNIT

38HDF

Unit

Size

38QRF

Unit

Size

018

o18

>

‘ ‘

se

“

5

~

o—

152)

TYP

CHASSIS

SIZE

A

Cc

Dd

(Reference)

21%,"

|

3"

"P4296"

|

1-4"

Go

ad

(108)

JUNCTION

BOX

(REFERENCE)

0'-2

1/2”

(64)

‘

re

“E

0-4

3/16

'

aN

K

E

F

VAT

ig"

|

15%

6"

411-5

1p”

FRONT

VIEW

*

Male

flare

connection

for

Heat

Pumps

UNIT

SIZE

:

M

OPERATING

WT

in.

mm

Ib

kg

oi8

5/y

15.88

166

75.3

024

Sly

15.88

176

79.8

38HDF

030

hy

19.05

187

84.8

036

Wy

19.05

250 113.4

018

Sly

15.88

166

753

024

5/g

15.88

176

79.8

38QRF

030

3/4

19.05

187

84.8

036

34

19.05

232

105.2

G

H

K

L

N

P

024,030

024

nop!

qi

a

06

2-7

3

1

406.

1-4"

406.

224g"

V1!

|

15%

ig"

|

11/5"

|

2a"

.

i

1'-10"

1

i

i

"9"

1”

|

O'-65/p”

|

O%-111/."

|

0'-275/,5”

|

0-6"

68.

52

0'-63/,"

O'-115/_"

|

O'-2°5/,6”

|

0-6"

71

52.

036

030,036

"P55"

|

1-645"

15/46"

|

3"

10

1131.

NOTE:

Dimensions

shown

in

feet-inches.

Dimensions

in

(

)

are

millimeters.

CLEARANCES

-

1'-78}p"

2'-64o"

4.

498.

2-B3/46"

|

2108/6"

41

Fig.

2

-

383HDF,

QRF

Unit

Dimensions

OUTDOOR

A

Alr-inlet

-1'/ig"

|

O'-Bt_”

|

1-37”

|

O'-37%/i5”

|

O'-6'/.”

.

65.

A08434

Ajir-outlet

UNIT

Coil

Facing

Wall

-

in.

(mm)

Fan

Facing

Wall

-—

in.

(mm)

A

24

(610)

24

(610)

B

36

(914)

36

(914)

Cc

36

(914)

8

(203)

D

6

(152)

8

(203)

E

6

(152)

36

(914)

Fig.

3

-

Outdoor

Unit

Clearance

3

A08436

Parts

List

Indoor

Unit

The

following

items

are

included

with

the

indoor

unit:

Table

1

—

Installation

Materials

Description

Qty

Usage

Baffle

(size

18)

1

Required

for

fresh

air

intake

Template

1

hoe

hangers,

piping

and

wiring

loca-

NOTE:

The

grille

and

the

User

Interface

are

not

included

with

unit.

For

User

Interface,

a

wireless

remote,

wired

remote,

or

a

Zone

Manager

can

be

ordered.

Outdoor

Unit

The

following

items

are

included

with

the

outdoor

unit:

PISTON

CAP

PISTON

COGLING

PISTON

BODY

LINE

SET

;

«BY

OTHERS)

FLARE

CONNECTOR

CONNECTOR

«BY

OTHERS)

FILTER

/DRIER

Loo

METERED

FLOW

COOLING

38HDF018-036

A09499

Fig.

4

-

38HDF018-036

90°

CONNECTOR

Fier

<OPTIGNAL?

ORE

PISTON

CAP

PISTON

COOLING

PISTON

BODY

LINE

SET

(BY

OTHERS)

coe

=|

METERED

COOLING

PISTON

CAP

FLARE,

CONNECTOR

METERED

FLOW

HEATING

These

instructions

cover

the

installation

and

start-up

of

the

systems

listed

in

Table

2.

Table

2

-

Matched

Systems

INDOOR

UNIT

eid

ila

OUTDOOR

UNIT

MODEL

NUM-

BER

018

38HDFO18—3

40KMC018—3

Cooling

024

38HDF024—3

40KMC024—3

Only

030

38HDFO30—3

40KMC03036—3

036

38HDFO36—3/5/6

|

40KMCO3036—3

018

38QRF018—3

40KMQ01824—3

024

38QRF024—3

40KMQ01824—3

Heat

Pump

030

38QRF030—3

40KMQ03036—3

036

38QRF035—3/5/6

|

40KMQ03036—3

Cooling

018

38HDFO18—3

40KMQ01824—3

with

024

38HDF024—3

40KMQ01824—3

Electric

030

38HDFO30—3

40KMQ03036—3

Heat

036

38HDFO36—3/5/6

|

40KMQ03036—3

SYSTEM

REQUIREMENTS

Clearances

Allow

sufficient

space

around

the

indoor

and

outdoor

unit

for

proper

airflow

circulation

and

servicing.

Refer

to

Fig.

1

and

Fig.

3

for

minimum

required

clearances.

Piping:

Piping

and

insulation

is

field

supplied.

Piping

Lengths

The

minimum

length

between

the

indoor

and

outdoor

units

is

10

ft

(3

m).

Refer

to

table

3

for

the

maximum

lengths

allowed.

Table

3

-

Maximum

Refrigerant

Line

Lengths

Unit

Max

Line

Max

Elevation

Max

Elevation

Size

|

Length*

ft(m)

(ID

over

OD)

ft(

m)

(OD

over

ID)

ft

(m)

18K

200

(61)

65 (19.8)

200

(61)

24K

200

(61)

65 (19.8)

200

(61)

30K

200

(61)

65 (19.8)

200

(61)

36K

200

(61)

65 (19.8)

200

(61)

Note:

For

lengths

greater

than

25

ft

(7.6

m), refer

to

the

Duct

Free

Long

Line

Guide.

Pipe

Sizes

Refer

to

table

4

for

pipe

sizes.

A09500

Fig.

5

-

38QRF018-036

Table

4

—

Pipe

Sizes

Pipe

Sizes

(in)

Model

Filter

Drier

Piston

Pistons*

Flare

Unit

Size

Mix

Phase

—

in

Vapor

—

in

Cap

Connector

18K

3/8

5/8

38HDF

ia

a

aa aa

24k

3/8

5/8

38QRF

w

=

(aty

2)

lal

(qty

3)

30K

3/8

3/4

*

Multiple

pistons.

Quantity

varies

with

size.

36K

3/8

3/4

Note:

Both

lines

need

to

be

insulated

using

at

least

1/2

inch

closed

foam

insulation.

Condensate

Drain

Pipe

Sizes

Refer

to

table

5

for

the

Table

5

—

Drain

Pipe

Sizes

required

sizes.

Unit

Size

Inside

Diameter

—

in

18K

24K

30K

38K

afoafoa}oa

Refrigerant

Charge

The

38HDF

and

38ORF

units

can

be

matched

with

multiple

outdoor

units

and

thus

additional

charge

might

be

required

when

matched

with

the

4OKMC

or

40KMO

units.

Table

6

—

Additional

Charge

Additional

Charge

Ib

(kg)

Unit

Size

38HDF

38QRF

018

0 0

024

1.2

(0.55)

0

030

3.0

(1.40)

1.8

(0.82)

036

0.8

(0.36)

0

Note:The

above

additional

charge

is

required

amount

for

line

lengths

up

to

25

ft

(7.6

m).

For

line

lengths

exceeding

25

ft

(7.6

m),

additional

charge

will

be

required.

Refer

to

the

Duct

Free

Splits

Long

Line

Guide.

Metering

Device

The

metering

device(s)

for

these

systems

is

a

type

B

Accurator

installed

with

the

outdoor

unit.

One

Accurator

is

required

for

the

cooling

only

system

and

two

are

required

for

the

heat

pump

systems.

The

Accurators

are

supplied

with

the

outdoor

unit.

However,

since

the

same

outdoor

unit

can

be

matched

with

multiple

indoor

units,

the

correct

Accurator

must

be

selected.

Refer

to

Table

7

for

the

correct

Accurator

size.

Table

7

—

Accurator

Sizes

Control

Wiring

Thermostat

wires

should

be

used

for

control

wiring

between

the

indoor

and

outdoor

units.

A

two

conductor

cable

is

required

for

the

cooling

only

units

and

a

seven

conductor

cable

is

required

on

heat

pumps.

18

AWG

is

recommended

for

any

length

up

to

50

ft

(15.2

m).

16

AWG

is

recommended

for

lengths

between

50

and

200

ft

(15.2

and

61.0

m).

User

Interface

For

38HDF

and

38QRF

units

matched

with

40KMC

and

40KMQ

units,

the

following

accessories

are

available

¢

Wall

mounted

control.

Up

to

6

units

can

be

daisy

chained

and

controlled

by

one

wired

control.

¢

Zone

manager

capable

of

controlling

up

to

32

units

divided

up

to

8

different

zones.

¢

Wireless

remote

control.

NOTE:

Units

are

factory

ready

for

wall

mounted

wired

controls.

See

User

Interface

Installation

section

in

this

document.

Operating

Range

Ensure

that

the

system

operates

within

the

application

guidelines

shown

in

the

following

tables.

Cooling

Operating

Range

System

T

si

Cooling

Heating

Maximum

Minimum

ystem

Type

126

Accurator Accurator

DB°F

CC)

|

WB°F(CC)

|

DB°FCC)

|

WB°F(CC)

018

49

=

Outdoor

cooling

Only

024

57

=

Unit

125

(51.7)

--

55 (12.8)

--

030

61

-

Indoor

.

90

(32.2

74

(23.3

62

(17.0

56

(13

036

74

=

Unit

(32.2) (23.3) (17.0)

(13)

018

51

46

Heat

Pumps

024

55

53

Heating

Operating

Range

030

63

55

7

+

036

70

a3

Maximum

Minimum

DB°FCC)

|

WB°F(°C)

|

DB°F(°C)

|

WB°F(°C)

‘ ‘ ‘

Outdoor

|

75

(28.9

87

(19.4

17

(-8.3

--

Power

and

Connecting

Cables

-

Field

Supplied

Unit

(28.8) (18.4)

(~8.3)

Power:

indoor

81

(27.2)

—-

62 (17.0)

—-

¢

The

indoor

and

outdoor

units

require

a

dedicated

power

supply.

¢

Consult

local

building

codes,

NEC

(National

Electric

Code)

or

Accessories

CEC

(Canadian

Electric

Code)

for

any

special

requirements.

¢

Use

Table

8

for

the

electrical

requirements

for

the

outdoor

units

and

Table

9

for

the

indoor

units

to

correctly

size

the

cables

and

disconnect

switches.

Table

8

-

38HDF

/

QRF

Electrical

Requirements

38HDF

38QRF

Unit

Voltage

Min

Ckt

Amps/

Min

Ckt

Amps/

Size

Fuse

HACR

Bkr

Fuse

HACR

Bkr

Amps Amps

018

208/230

—1-60

12.1/20

12.1/20

024

208/230—1-60

16.8/25

16.8/25

030

208/230

—1-60

18.4/30

18.4/30

035/36

208/230—1-60

23.8/40

23.3/35

035/36

208/230-3-60

18.0/30

14.5/20

035/36

460—-3-—60

8.3/15

87/15

Table

9

-

40KMC

/

KMQ

Electrical

Requirements

40KMC

40KMQ

Unit

Voltage

Min

Ckt

Amps/

Min

Ckt

Amps/

Size

Fuse

HACR

Bkr

Fuse

HACR

Bkr

Amps Amps

018

208/230

—1-60

0.83/15

16.3/20

024

208/230—1-60

O.7/15

16.3/20

030

208/230

—1-60

1.3/15

16.9/20

036

208/230

—1-60

1.3/15

16.9/20

An

extensive

list

of

field

installed

accessories

is

available

for

both

indoor

and

outdoor

units.

Identify

what

accessories,

if

any,

are

required

for

the

application

at

hand

and

consult

the

separate

installation

instructions

for

the

accessories.

Some

of

the

accessories,

especially

on

the

indoor

units,

can

be

installed

much

easier

if

planned

ahead.

INSTALLATION

Complete

Pre-installation

Checks

1.

Unpack

Unit

-

Store

the

indoor

and

outdoor

units

in

the

original

packaging

until

it

is

moved

to

the

final

site

for

in-

stallation.

When

unpacking

indoor

unit,

be

careful

not

to

lift

unit

by

condensate

drain

discharge

pipe

or

by

refrigerant

connections.

bo

.

Inspect

Shipment

-

Upon

receipt

of

shipment,

check

the

indoor

and

outdoor

units

for

damage.

If

there

is

any

dam-

age,

forward

claim

papers

directly

to

the

transportation

company.

Manufacturer

is

not

responsible

for

damage

in-

curred

in

transit.

3.

Inspect

Parts

Supplied

With

Units

—

Check

all

items

against

parts

list

(see

page

4).

If

any

items

are

missing,

noti-

fy

your

distributor

or

Carrier

office.

To

prevent

loss

or

damage,

leave

all

parts

in

original

packages

until

installation.

Consider

System

Requirements

1.

Consult

local

building

codes

and

NEC

for

special

instaila-

tion

requirements.

bo

.

When

deciding

the

location

of

the

indoor

and

outdoor

units,

ensure

that

the

piping

run

does

not

exceed

the

allowed

dis-

tances

listed

in

Table

3.

3.

Make

sure

the

indoor

and

outdoor

units

are

easily

accessible

to

electrical

power.

4.

Allow

sufficient

clearances

for

airflow,

wiring,

refrigerant

piping, and

servicing

the

unit.

See

Fig.

2

and

Fig.

3.

5.

Condensate

piping

can

be

directed

through

the

inside

wail

to

an

approved

drain

or

straight

outside.

INSTALL

INDOOR

UNIT

Plan

the

installation

carefully

before

you

begin.

1.

Select

indoor

unit

location.

a.

A

location

that

can

bear

the

weight

of

the

unit.

b.

Install

the

unit

a

centrally

as

possible

in

the

room.

c.

Choose

a

location

that

does

not

obstruct

air

circulation.

NOTE:

A

maximum

of

two

air

outlets

can

be

restricted

at

one

time.

See

Fig.

6.

The

Air

Supply

Outlet

Obstruction

accessory

kit

can

be

used

to

obstruct

air

outlets.

t

‘

’ ‘

it

¥ i q

\

, ‘ i

s ¢ “ ¢

Max.

2

louvers

closed

‘ ‘

it

1

‘

i

x ’

4

A07184

Fig.

6

-

Air

Outlet

Obstruction

d.

Choose

a

location

that

is

easily

accessible

for

service

and

maintenance.

e.

Do

not

install

indoor

units

near

a

direct

source

of

heat

such

as

direct

sunlight

or

heating

appliance.

f.

Do

not

install

units

too

close

to

humid

conditions.

2.

Mounting

Indoor

Unit

NOTE:

If

the

mounting

location

is

in

a

plaster

board

ceiling,

the

maximum

dimensions

of

the

unit

housing

cutout

must

not

exceed

2

ft,

2

in.

(0.66

mm)

square

for

the

40KMC018

units

and

2

ft.

11

in.

(0.66

mm)

square

for

the

40KMC024-036

and

40KMQ018-036

units.

NOTE:

The

unit

is

in

two

sections:

The

unit

and

the

grille.

a.

Use

the

factory

supplied

cardboard

template

as

a

guide

to

mark

the

position

of

the

hangers,

refrigerant

lines

and

condensate

drain

pipes,

power

supply

cables

and

remote

control

cables.

See

Fig.

1

for

dimensions.

b.

Depending

on

the

type

of

ceiling,

fix

the

threaded

hangers

as

shown

in

Fig.

7

and

Fig.

8.

4

|

C

—©®

J

@

=—__

@

©D-———

©

1D

®

@

Nut

©

Washer

@

Washers

@

Threaded

hangers

@®

Threaded

hangers

Washer

@

Wooden

frame

@®

Nut

®

Nut

Nut

A07186

Fig.

7

-

Attaching

Hangers

to

Ceiling

é

|—_}*

Threaded

hangers

L

a

“T

bar

La”

be

removed)

ale

AO7187

1

“4

Fig.

8

-

Threaded

Hangers

and

“T” Bar

c.

Insert

the

washers

as

shown

in

Fig.

7

and

Fig.

8.

d.

Remove

the

“T”bar

in

ceiling

to

facilitate

installation.

See

Fig.

8.

If

the

“T”

bar

cannot

be

removed

from

the

ceiling,

the

unit

may

have

to

be

tilted

as

shown

in

Fig.

9,

Threaded

Hangers

Threaded

Hangers

x,

LLe

|

te”

&

S|

|

x

ef

pe

T-Bar

T-Bar

Supension

Brackets

Supension

Brackets

A07I88

Fig.

9

-

Positioning

Unit

in

Ceiling

e.

If

Fresh

Air

Intake

or

Conditioning

an

Adjacent

Room

is

required,

perform

the

modification

required

to

the

unit

at

this

point.

Refer

to

the

Installation

Options

section

for

additional

details.

f.

Use

a

stacker

to

lift

the

unit

to

the

installation

location.

See

Fig.

10.

A07L85

Fig.

10

-

Positioning

Unit

g.

Carefully

lift

the

unit

using

the

four

suspension

brackets

and

insert

the

four

suspension

brackets

into

the

threaded

hanger

as

shown

in

Fig.

11.

Spirit

False

Ceiling

Level

A07189

Fig.

11

-

Align

and

Level

Unit

h.

Align

and

level

the

unit

by

adjusting

the

nuts

and

lock-

nuts on

the

threaded

hangers

maintaining

a

distance

of

1

in.

to

1-3/16

in.

between

the

sheet

metal

body

and

the

underside

of

the

false

ceiling.

See

Fig.

11.

3.

Drill

the

hole

for

the

piping

(refrigerant

and

condensate)

and

control

wiring

in

the

external

wail.

a.

Drill

a

2-3/4

in.

(70

mm)

hole

in

the

wall

with

a

3/16

in.

to

3/8

in.

(4.8

-

9.5

mm)

slope

toward

the

outside.

Refer

to

Fig.

12.

(70/80

ram)

~

Outdoor

”

3e"s3/e"

Om

~

\erto

mm)

Y

©)

Indoor

A07L90

Fig.

12

-

Drilling

for

Connections

4.

Drill

hole

for

Fresh

Air Intake,

if

required.

Refer

to

Instaila-

tion

Options

section

for

additional

information.

NOTE:

In

rooms

with

high

humidity,

brackets

should

be

insulated

using

self-adhesive

insulation.

INSTALL

OUTDOOR

UNIT

The

outdoor

units

can

be

installed

on

the

ground,

on

the

roof,

or

mounted

on

a

wall.

NOTE:

Install

the

unit

so

that

the

coil

does

not

face

into

prevailing

winds.

If

this

is

not

possible

and

constant

wind

winds

above

25

mph

are

expected,

use

accessory

wind

baffle.

See

installation

instructions

provided

with

accessory

kit.

Wind

baffles

should

also

be

used

on

all

units

with

accessory

low

ambient

temperature

control.

Mounting

on

Ground

1.

Mount

unit

on

a

solid

level

concrete

pad.

2.

Ifa

heat

pump

is

being

installed,

use

a

field-

provided

snow

stand

or ice

rack

where

prolonged

subfreezing

temperatures

or

heavy

snow

occurs.

3.

Position

unit

so

water

or ice

from

roof

does

not

fall

directly

onto

unit.

4.

On

cooling

only

units,

an

accessory

stacking

kit

can

be

used

when

units

are

to

be

stacked.

See

installation

instructions

provided

with

the

accessory

kit.

Mounting

on

Roof

&

CAUTION

PERSONAL

—=

INJURY

DAMAGE

HAZARD

Failure

to

follow

this

caution

may

result

in

personal

injury

and

/

or

equipment

damage.

Be

sure

unit

panels

are

securely

in

place

prior

to

rigging.

AND/OR

EQUIPMENT

1.

Rig

the

unit.

Keep

the

unit

upright

and

lift

using

a

sling.

Use

cardboard

or

padding

under

the

sling,

and

spreader

bars

to

prevent

sling

damage

to

the

unit.

See

Fig

13.

See

Fig.

2

for

center

of

gravity

reference

.

Mount

unit

on

a

solid

concrete

pad

or

platform.

Ww

be

.

Isolate

unit

and

piping

from

structure

fs

.

Ifa

heat

pump

is

being

installed,

use

a

field-

provided

snow

stand

or ice

rack

where

prolonged

subfreezing

temperatures

or

heavy

snow

occurs.

5.

On

cooling

only

units,

an

accessory

stacking

kit

can

be

used

when

units

are

to

be

stacked.

See

installation

instructions

provided

with

accessory

kit.

|

SLING

PADDING

|.

COMPRESSOR

[END

HA

|.

CENTER

OF

UATE

GRAVITY

OE

LeU

i

Fig.

13

-

Lifting

Unit

with

Sling

A07396

Mounting

Unit

on

Wall

The

units

can

also

be

mounted

on

the

wall

using

the

accessory

mounting

kit.

Complete

Outdoor

Refrigerant

Piping

Connec-

tions

Follow

the

following

general

guidelines:

1.

Use

refrigerant

grade

field

—

supplied

tubing.

Refer

to

Table

4

for

the

correct

line

sizes.

2.

Do

not

use

less

than

10

ft

(93.05

m)

of

interconnecting

tubing.

UNIT

DAMAGE

HAZARD

Failure

to

follow

this

caution

may

result

in

equipment

damage

or

improper

operation.

If

any

section

of

pipe

is

buried,

there

must

be

a

6

in.

(152.4

mm)

vertical

rise

to

the

valve

connections

on

the

outdoor

unit.

If

more

than

the

recommended

length

is

buried,

refrigerant

may

migrate

to

cooler,

buried

section

during

extended

periods

of

system

shutdown.

This

causes

refrigerant

slugging

and

could

possibly

damage

the

compressor

at

start-up.

When

more

than

80

ft

(24.4

m)

of

interconnecting

tubing

is

used,

consult

the

Duct-Free

Split

System

Long

Line

Application

Guide

for

required

accessories.

3.

Insulate

both

lines.

A

minimum

of

1/2

inch

foam

pipe

insu-

lation

is

recommended.

4.

Run

the

refrigerant tubes

as

directly

as

possible

and

avoid

unnecessary

turns

and

bends.

5.

Suspend

refrigerant tubes

to

avoid

damage

to

insulation

or

tubes

so

they

do

not

transmit

vibration

to

the

structure.

6.

When

passing

refrigerant tubes

through

the

wall,

seal

the

opening

so

rain

and

insects

do

not

enter

the

structure.

Leave

some

slack

in

refrigerant tubes

between

structure

and

out-

door

unit

to

absorb

vibration.

NOTE:

A

fusible

plug

is

located

in

unit

suction

line;

do

not

cap

this

plug.

If

local

codes require

additional

safety

devices,

install

as

directed.

Connection

at

Outdoor

Unit

UNIT

DAMAGE

HAZARD

Failure

to

follow

this

caution

may

result

in

equipment

damage

or

improper

operation.

To

prevent

damage

to

unit

or

service

valves

observe

the

following:

¢

A

brazing

shield

MUST

be

used.

¢

Wrap

service

valves

with wet

cloth

or

use

a

heat

sink

material.

38HDF

Units:

1.

Assemble

the

connector

tube

to

the

factory

supplied

filter

drier

by:

a.

Braze

the

field

supplied

connector

to

the

inlet

of

the

filter

drier

(see Fig.

14)

b.

Braze

the

factory

supplied

flare

connector

to

the

outlet

end

of

the

filter

drier

(see

Fig.14)

ate)

oe,

CONNECTOR

CONNECTOR

COCLING

<BY

OTHERS)

PISTON

BODY

FILTER

7DRIER

LINE.

SET

<BY

OTHERS?

é

i;

=f

METERED

FLOW

ETERED

Fe

COGLING

Aogagg

Fig.

14

-

38HDF018-036

Connector

Tube

Assembly

2.

Assemble

the

Accurator

body

(see Fig.

15)

using

the

correct

factory

supplied

piston

(refer

to

Table

7)

.

TEFLON

SEAL

TO

INDOOR

COIL

2

a

eae

PISTON

WITH

ORIFICE

BODY

NOTE:

Arrow

on

AccuRater

body

points

in

free

flow

direction,

away

from

the

indoor

coil.

AO9501

Fig.

15

-

AccuRater

(bypass

type)

Metering

Device

Components

3.

Attach

the

complete

Accurator

assembly

to

the

flare

connec-

tion

end

of

the

filter

drier

4.

Braze

the

completed

filter

drier/Accurator

assembly

to

the

liquid

service

valve.

5.

Connect

the

field

supplied

line

set

to

the

filter

drier/Accura-

tor

assembly

and

the

suction

valve.

A sweat

connection

is

required

at

the

suction

valve

and

flare

connection

is

required

for

the

mixed

phase

line.

6.

Insulate

any

exposed

areas

between

the

line

set

and

the

li-

quid

valve.

38QRF

Units

1.

Assemble

the

connector

tubes

to

the

factory

supplied

filter

drier

by

brazing

the

factory

supplied

flare

connectors

to

the

inlet

and

outlet

for

the

filter

drier

(see Fig.

16)

90°

CONNECTOR

ist

FILTER

COPTIONAL)

HEXTING

(DRIER

PISTON

CAP

PISTON

PISTON

CAP

ERaLINe

FLARE

PISTON

BODY

CONNECTOR

LINE

SET

(BY

OTHERS)

METERED

FLOW

ese

METERED

PLOW

ne

HEATING COOLING

AOQ507

Fig.

16

-

38QRF018-036

Connector

Tube

Assembly

.

Perform

step

2

and

3

from

the

38HDF

section.

Ww

.

Remove

the

plastic

cap

from

the

liquid

and

suction

service

valve

on

the

38ORF

unit

and

assemble

the

heating

piston

and

piston

cap

supplied

with

the

outdoor

unit

as

shown

in

Fig.

17.

ISTON

CAP

FLARE

CONNECTOR

METERED

FLOW

@oooonnooonn

HEATING

A07407

Fig.

17

-

AccuRater

(bypass

type)

Metering

Device

Components

Heat

Pump

Systems

Only

NOTE:

The

Teflon

seal

on

the

piston

should

point

towards

the

liquid

service

valve.

The

size of

the

factory

supplied

piston

might

have

to

be

adjusted

for

long

line

applications

(over

80

ft

/

24.4

m).

Refer

to

the

Duct

Free

Long

Line

Application

Guide

for

additional

information.

4.

Attach

the

flare

end

of

the

filter

drier

assembly

to

the

piston

cap

(see Fig.

17).

5.

Connect

the

field

supplied

line

set

to

the

filter

drier

as-

sembly

and

to

the

suction

valve.

6.

Insulate

any

exposed

areas

between

filter

drier

and

liquid

valve.

Complete

Outdoor

Power

and

Control

Wiring

ELECTRICAL

SHOCK

HAZARD

Failure

to

follow

this

warning

could

result

in

personal

injury

or

death.

The

unit

cabinet

must

have

an

uninterrupted

or

unbroken

ground

to

minimize

personal

injury

if

an

electrical

fault

should

occur,

The

ground

may

consist

of

electrical

wire

or

metal

conduit

when

installed

in

accordance

with

existing

electrical

codes.

&

CAUTION

UNIT

DAMAGE

HAZARD

Failure

to

follow

this

caution

may

result

in

equipment

damage

or

improper

operation.

Unit

failure

as

a

result

of

operation

on

improper

line

voltage

or

excessive

phase

imbalance

constitutes

abuse

and

may

cause

damage

to

electrical

components.

Such

operation

could

void

any

applicable

Carrier

warranty.

&

WARNING

ELECTRICAL

SHOCK

HAZARD

Failure

to

follow

this

warning

could

result

in

personal

injury

or

death.

Before

performing

service

or

maintenance,

be

sure

indoor

unit

main

power

switch

is

turned

OFF

and

indoor

blower

has

stopped.

Lock

out

and

tag

switch

with

a

suitable

warning

label.

Power

Wiring

1.

Mount

outdoor

power

disconnect.

The

unit

is

factory

wired

for

the

voltage

shown

on

the

unit

nameplate.

The

fused

dis-

connect

switch

must

be

provided

within

sight

of

the

unit,

readily

accessible,

but

out

of

reach

of

children.

Provisions

for

locking

the

disconnect

switch

on

the

OFF

(open)

posi-

tion

is

advisable.

The

disconnect

switch

must

comply

with

NEC

and

local

codes.

Protect

the

unit

and

wiring

using

only

the

recommended

fuse/circuit

breaker

size.

See

Table

8.

2.

Run

power

wiring

from

main

box

to

disconnect

per

NEC

and

local

codes.

an

.

Run

power

wiring

from

the

disconnect

switch

to

outdoor

unit.

Use

only

minimum

60°C

copper

conductors

between

the

disconnect

switch

and

the

unit

for

field

power

connec-

tion.

4.

Route

the

field

power

wires

through

the

conduit

connection

opening

in

the

unit

side

panel

and

connect

in

junction

box

as

shown

in

Fig

18.

The

unit

and

power

wiring

must

be

grounded.

==

=GROUND

LEAD

=

-{@]

crounowe

LUG

SINGLE-PHASE

CONNTO)

=f

.

ax

DISCONNECT

PER

NEC

om

JZ

tak

SINGLE-PHASE

UNIT

THREE-PHASE

CONN

TO

DISCONNECT

[oo

A

VEL

PER

NEC

maz

=GROUND

LEAD

uma

GROUNDING

LUG

THREE-PHASE

UNIT

LEGEND

NEC

--

National

Electrical

Code

fA

--

Splice

(field)

==

'

Field

Wiring

tmmmes

Factory

Wiring

A08251

Fig.

18

-

Line

Power

Connections

NOTE:

Operating

unit

on

improper

line

voltage

constitutes

abuse

and

may

affect

Carrier

warranty.

DO

NOT

install

unit

in

a

system

where

voltage

may

fluctuate

above

or

below

permissible

limits.

9

Control

Wiring

The

control

circuit

is

24

volts

AC

(minimum

40VA)

supplied

from

the

indoor

unit.

1.

Make

sure

you

have

enough

control

wires

to

cover

the

dis-

tance

between

the

indoor

and

outdoor

unit.

Indoor

Terminal

Board

Indoor

~

Board

i

ae

ae

\

Outdoor

|

Terminal

——>

Board

|

a

Lee

TES

AE

ISHIRAL

Ewen

mm

mr

rr

rr rn

|

foo

7)

HEGHMALL

Fe

©

TT

A09508

Fig.

19

-

38HDF

Control

Terminal

Strip

2.

Route

one end

of

the

control

wiring

through

the

opening

rovided

in

the

unit

side

panel

and

connect

to

the

control

Pp

Pp

terminal

strip

using

either

Fig.

19

for

33HDF

units

and

Fig.

20

for

38ORF

units.

Indoor

Board

\

Indoor

Terminal

Board

|

EH

—

v0

siseeiai

@

- ~

—

—

—

— —

—

—

=|

ae

wos

TO

HEGHGRLL

&

—_

vow

TO

HLSOGRLA,

OF

_T

TTT

TT TT

Outdoor

1G

MIG,

& =

——

—

$s

——

S$

——

S$

——

ss

Terminal

—+>

09

teil

¢

=<

——

——

—— ——

— —

—

—|

Board

[EB]

80

AEGHWALL

Ro

|

[Bplen

#0

wisewL

@

©)

——

——-

—-

——-

——

——

——

—

A09509

Fig.

20

-

38QRF

Control

Terminal

Strip

NOTE:

Use

No.

18

AWG

color-coded,

insulated

35°C

minimum)

wire.

If

the

distance

between

the

indoor

and

outdoor

unit

is

greater than

100

ft.

30.5

m),

as

measured

along

the

control

voltage

wires,

use

No.

16

AWG

color-coded

wire

to

avoid

excessive

voltage

drop.

10