beautypg.com

Carrier 38HDF018-036 User Manual

Page 9

background image

9

LEG

E

N

D

NO

T

E

S

:

1.

Com

p

res

s

or

and

fa

n

m

ot

ors

a

re

ther

mally

prot

ect

ed.

2.

W

ire

in

acc

o

rdance

wit

h

N

at

ional

Elec

tr

ical

Code

(NEC)

and

local

c

odes

.

R

eplace

any

or

ig

inal

wires

wit

h

90°

C

w

ir

e

o

r

it

s

equiv

a

lent

.

3.

Us

e

m

ini

m

um

60°

C

wire

for

fi

el

d

p

o

w

e

r

wir

ing.

4.

T

ransf

o

rm

e

r

has

in

te

rnal

4.

5A

ther

m

a

l

fuse

o

n

the

pr

im

ar

y

s

ide

.

5.

T

rans

fo

rm

er

fa

ct

or

y

w

ir

ed

fo

r

230

v.

F

o

r

208

v

m

o

v

e

b

lac

k

wire

to

208

v

o

lt

ta

p

o

n

tr

an

sf

or

m

e

r.

6.

Crankc

a

se

heat

er

and

ther

m

o

st

at

used

on

s

e

le

c

ted

mod

e

ls

only

.

C—

Cont

act

o

r,

Comp

ressor

CAP

Capac

it

or

CCH

T

Crankc

a

se

Heat

er

T

her

mos

tat

CH

Crankc

a

se

Heat

er

COM

P

Com

p

ress

or

Mot

o

r

EQ

U

IP

E

quipment

GND

G

round

HP

S

High-P

ress

u

re

Swit

c

h

LP

S

Lo

w-

P

res

s

u

re

S

witc

h

OFM

O

u

tdoor-F

an

M

o

to

r

OL

O

v

er

load

TB

T

e

rm

inal

Board

TRAN

T

ra

n

sf

or

m

e

r

S

p

lic

e

(Field)

T

e

rm

inal

(M

ar

k

ed)

T

e

rm

inal

(U

nmar

k

ed)

T

e

rm

inal

B

loc

k

Sp

lice

F

a

c

tor

y

W

ir

ing

F

iel

d

C

ont

rol

W

ir

ing

F

iel

d

P

o

w

er

W

ir

ing

O

p

ti

onal

or

Acc

e

ssor

y

W

ire

F

ig

.

6

38

HDF

018

-0

36

T

y

p

ical

Wi

rin

g

S

c

h

e

ma

ti

c

3

8

HDF

O

P

ER

A

T

ION

S

E

Q

UENCE

CA

L

L

F

O

R

C

OOL

IN

G:

1.

C

ont

rol

v

olt

age

fr

om

tr

ans

fo

rm

er

to

ther

mos

tat

(2

4

v

).

2.

A

t

th

e

rm

o

st

at

24

v

is

s

wit

ched

to

“G

and

“Y

.”

3.

24

v

from

ther

mos

tat

“G

energizes

fan

rela

y

a

t

ind

oor

fa

n

c

oil

unit

and

indoo

r-f

an

m

o

to

r

runs

.

4.

24

v

fr

o

m

ther

mos

tat

“Y

energiz

e

s

th

e

contactor

c

oil

and

the

c

ompres

sor

a

n

d

out

doo

r-f

an

motor

will

bot

h

run.

6.

If

the

int

er

nal

protecti

o

n

o

f

th

e

c

ompr

essor

o

r

L

P

S

o

r

HP

S

open,

the

2

4

v

to

c

ont

ac

to

r

c

oil

will

be

int

e

r-

rupt

ed.

The

c

om

pres

s

o

r

and

outdoor-f

an

m

o

to

r

will

s

top

.

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