CARRIER Package Units(both Units Combined) Manual L0703136

User Manual: CARRIER CARRIER Package Units(both units combined) Manual CARRIER Package Units(both units combined) Owner's Manual, CARRIER Package Units(both units combined) installation guides

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Installation
IMPORTANT:
installation

This

installation

information

instruction

including

contains

installation

devices. For information
on unit start-up,
service,
refer to the unit Controls, Start- Up, Operation,
Troubleshooting

Instructions

also enclosed

basic

of field

Instructions

unit

control

Z_.

and operation,
Service, and

in the unit literature

SAFETY

INSTALLATION

........................

Unit Support

Step 2 - Rig and Place Unit
Step 3 - Field Fabricate

......................
........................

Ductwork

Step 5 - Install Flue Hood
Step 6 - Install External

Step 9 - Make Electrical

Drain

.....

...............

10
13

Step 11 - Install All Accessories

SAFETY

Controls

....................

air-conditioning

Untrained

personnel

of cleaning
coils
operations
should

the

words

to the

......................

potential

the basic maintenance

and filters and replacing
be performed
by trained

filters.
service

functions
All other
personnel.

When
working
on
air-conditioning
equipment,
observe
precautions
in the literature, tags and labels attached to the unit,
and other safety precautions

and

for personal

injury.
signal

DANGER,

WARNING.

severe

personal

injury

or death.

WARNING

signifies

and

a hazard

reliability,

is used to
installation.

or operation.

ELECTRICAL
Failure
injury

SHOCK

to follow

HAZARD

this warning

could

cause

personal

or death.

Before performing
service or maintenance
operations
on unit, turn off main power switch to unit and install
lockout
tag. Ensure electrical
service to rooftop unit
agrees with voltage and amperage
listed on the unit
rating plate.

equipment.

can perform

symbol

furnace

CONSIDERATIONS

Installation
and servicing of air-conditioning
equipment
can be
hazardous
due to system
pressure
and electrical components.
Only trained and qualified service personnel should install, repair,
or service

be alert

the

injury or product
and property
damage.
NOTE
highlight
suggestions
which will result in enhanced

Step 10 - Install Outdoor-Air
Hoods (Units with
Economizer
............................

Step 12 - Configure

or manuals,

........................
Connections

is the safety-alert

...........................

Step 8 - Install Gas Piping

This
symbol

.............

Trap for Condensate

Change

this

................

and Inlet Hood

see

which could result in personal injury or death. CAUTION
is used
to identify unsafe practices which may result in minor personal

...................

Step 4 - Make Unit Duct Connections

Step 7 - Orifice

...................................

Step 1 - Provide

instructions

information.

you

CAUTION.
These words are used with the safety-alert
symbol.
DANGER
identifies the most serious hazards which win result in

OF CONTENTS

CONSIDERATIONS

safety

When

Understand

packet.

TABLE

Recognize

that may apply.

Follow all safety codes. Wear safety glasses and work gloves. Use
quenching cloth for unbrazing operations. Have fire extinguishers
available for all brazing operations.

UNIT

OPERATION

AND SAFETY

Failure to follow this warning
could
injury, death and/or equipment damage.

HAZARD
cause

personal

Puron (R-410a)
refrigerant
systems operate at higher
pressures than standard R-22 systems. Do not use R-22
service equipment
or components
on Puron refrigerant
equipment.

IMPORTANT:

The

gasketing

critical

for a watertight

shown

in Fig. 1. Improperly

of the unit

seal. Install
applied

FIRE,EXPLOSION
HAZARD
Failure
tofollowthiswarning
couldresult
inpersonal
injury,
death
and/or
property
damage.
Improper
installation,
adjustment,
alteration,
service,
or
maintenance
cancause
property
damage,
personal
inju_,orlossof life.Refer
totheUser's
Information
Manual
provided
withthisunitformore
details.
Donotstore
orusegasoline
orother
flammable
vapors
andliquids
inthevicinityofthisoranyother
appliance.

leaks and poor unit performance.
roof curb.

What to do if you smell gas:
1. DO NOT try to light any appliance.
2. DO NOT touch any electrical
switch, or use any
phone in your building.
3. IMMEDIATELY
call your gas supplier
from a
neighbor's
phone.
Follow
the
gas
supplier's
instructions.

data. File any claim with transportation

4. If you cannot

reach

your

gas supplier,

Alternate
When

minimum

of 3 equally

Step 2 --Rig
Inspect

spaced

limits are
compressor

Units

could cause

closing

have

damage.

DAMAGE

HAZARD
in personal

and lifting.

Use wooden

ambient

operating

near
limits.

top skid or spreader

must

vents

unit

operation,

provided

rigging
in Fig.

with

instructions
shipped
with this accessory.
(See Fig. 1.) Install
insulation,
cant strips, roofing,
and counter flashing as shown.
Ductwork can be installed to roof curb before unit is set in place.
Ductwork must be attached to curb and not to the unit. Curb must
be level. This is necessary
to permit
unit drain to function
properly. Unit leveling tolerance is -+ 1/16 in. per linear ft in an 5,
direction. Refer to Accessory
Roof Curb Installation
Instructions
for additional information
as required. When accessory roof curb
is used, unit may be installed on class A. B, or C roof covering
material. Carrier roof curb accessories
are for flat roofs or slab

or other

and above unit to provide
materials,
proper airflow,

location.
sources

Do not locate

air

of contaminated

adequate

combustion

in accordance

with

inlets
air. For

and ventilation
Section

5.3

air

(Air

for

Code,

Although

higher

unit is weatherproof,

guard

against

water from

and overhangs.

mechanical

any opening
in accordance

Unit

Combustion
and Ventilation)
of the National
Fuel Gas
ANSI Z223.1 (American National Standards Institute).

Locate

curb

information.

per Fig. 3. around
from combustible

exhaust

level runoff

Unit Support
roof

additional

Do not install unit in an indoor

Roof Curb

mounting.

result

must be in place when rigging

Maintain clearance,
minimum
distance
and service access.

the gas valve(s).

high

accessory

1 for physical

Positioning

INSTALLATION

or install

See Table
agency.

Rigging holes are provided in the unit base rails as shown
2. Refer to rigging instructions on unit.

restart the compressor.

Assemble

and Place Unit

direction.
See Fig. 2 for
weight is shown in Fig. 2.

death and/or

exceeded,
the units will automatically
lock the
out of operation.
Manual reset will be required
to

Step 1 --Provide

in air

bars over unit to prevent sling or cable damage.
Rollers may be
used to move unit across a roof. Level by using unit rail as a
reference:
leveling tolerance
is -+ 1/16 in. per linear fl in any

proper
IMPORTANT:

can also result

4-in. x 4-in. pads on each side.

Failure to follow this warning could
injury, death and property damage.

call the fire

HAZARD

by manually

gasket

install unit on a noncombustible

unit for transportation

PROPERTY

Disconnect
gas piping from unit when leak testing at
pressure greater than 1/2 psig. Pressures greater than 1/2
psig will cause gas valve damage resulting in hazardous
condition.
If gas valve is subjected to pressure greater
than 1/2 psig, it must be replaced before use. When
pressure testing field-supplied
gas piping at pressures of
1/2 psig or less, a unit connected
to such piping must
be isolated

is
as

Unit Support

a curb cannot be used.

All panels

Failure to follow this warning
property damage.

to the roof

Do not slide unit to position

Do not drop unit; keep upright.

EXPLOSION

curb

with the roof curb

surface. Support unit with sleepers, using unit curb support area.
If sleepers cannot be used. support long sides of unit with a

department.

FIRE,

gasket

through

draft system

flue assembly

which combustion

at least 4 ft from

products

could

enter the

building, and at least 4 ft from any adjacent building (or per local
codes). When unit is located adjacent to public walkways,
flue
assembly must be at least 7 ft above grade. Locate unit at least 10
ft away from adjacent units.
Roof Mount
Check building
codes for weight distribution
operating weight is shown in Table 1.

requirements.

Unit

UNIT
BACK
AT

SIZEi

ROOF CURB

_[[127]

BASK

48PGl'6

I"
2

2"_3561
"A"
0" [6_0]

CRRPCURBOS_AOG
ACCESSOR_
CRRECURBOSSAOB

[635]

\
:1

UNiT SIZEi
48PG
i

RETURN ENB

OASKEI
{SUPPLIED

_NSIDE
[]007

MAX CURB LEVELING

2
_

NAL
CO:P,TE R LAS iNG
(r LD S pPLI_O)

[520

9]
_

/ ¸ 4

I/B '¸

3/4 ¸

B I_
iB34 71

O S_¸

SUPPLY A_R

ITDR}

OPENING

SHIPPED UNASSE_DLED

CANT STR P
(FFIELO
[LD SgPPLi
DI
_
S PLIED
_
ROOFING MA ERIA

810
269
OUT

BOLT iIEADS TO BE OR INSiB£ OF FLANGE
CLEARANCE IS [_ii g O7116"
TYP ALL CORNERS
DIMENSIONS

IN [

] ARE IN M_LLIMETERS

ROOF CURB IS GALVANIZED SIEEi

_OOr NG FEL
0 ¸3¸'
[76 2]

CRGASSDRBBBAOO

C_RB_

TOLERAS,CES

! !" NPT

NOTES
I ROOF CURB ACCESSORY iS
_IT_

CONNECIOR
ACCESSORY
PACKAGE

'C"

AiiACR DUCTWORK i0 CBRB
REST ON CURB)
SERVICE

CLEARANCE

(_LANGES ON OUCT

4 F_ ON EACH SIDE

GAS SERVICE RLME IS PAR/ OF _ SEPARA?ELY
S_IPPDD ACCESSORY PACKAGE

1
_

1731

GAS SERVICE PLATE CAN BE USED _IT_
ACCESSOR_ RODE CURB

EITHER

J
J
!J
i

AiR FLOW

ELECTRICA_
SERVICE
_4B.
i406 Bl

OUTSIDE

RETURN i
AiR
i_ ¸- I_
8 ¸'
[587 B]

}71/B'
[494

SE BETAiE_
DEAIL

DIRECTION

6 /8'

II_
RIGID ]NSUL#TIOR

O 2 7!8
[1081

_\\

ALT GAS SERVICE
O 2 3_8'

OPDNING

FOR

IB_ B]

37
1/_'
[IO98 87

O o 1/41

o o l/B,,

_Eb_BR_ICE
_C'

DETAIL
D
SCALE /:5

DEAi
SCALE

18 GAUGE STEEL> _IT_ i/B
INCH NEOPRENE INSBiATION

SEE NODE 7 _ B

SERVICE

l:S

C06228

Fig. 1 -

Roof Curb Details

Table

l--Physical

Data

BASE UNIT 48RG
NOMINAL

CAPACITY

OPERATING
Unit*

(Tons)

WEIGHT

(Ib)
1895

Economizer
Ver[ica_
Horizontal

149
149

Humidi-MiZer
Roof Curb
14-in

System

64
24O

24qn

36O

COMPRESSOR

Fully Hermetic
5

Quantity
Oil Type

Sys A
Sys B
Sys C

Number

of Refrigerant

Oil (oz)

Sys A
Sys B

Circuits

Device

Operating

Charge

Copeland

3MA

Copeland
Copeland
3

3MA
3MA

66
68
66

Sys C
REFRIGERANT
TYPE
Expansion

R-4t 0A (Puron®

(Ib) Sys A

15.5
15.0
15.0

Charge Total All Systems

(tb)

45.5

Unit with Humidi-MiZer
System
Operating Charge (Ib) Sys A

Total Ati Systems
CONDENSER

Sys B

18.8
18.7

Sys C

18.8

(Ib)

54.3

COIL

Enhanced

Copper

Tubes, Aluminum

Condenser
A (Outer)
Rows.Fins/in

28.6

Condenser
B (Inner)
Rows.Fins/in

217
30.2

Face Area (sq ft)
HumidFMiZer
Coi_

Copper

Fins/in

Face Area (sq ft)
CONDENSER
FAN
Quantity
Nominal
Motor

Size

Enhanced

22.2

1. 15x15, 1 ..12x12
1. 15x15, 1 ..12x12
Belt

High
Cfm

High
Low

Frame Size

Mid-Low
High
Low

Fan Rpm Range

Mid-Low
High
Motor

Bearing Type

Motor

Pulley Pitch Diameter

Low

Max (in.)

High
Low
Mid-Low

Fan Pulley Pitch Diameter

High
Low

(in.)

Mid-Low
Motor Shaft Diameter

(in)

High
Low
Mid-Low

Pitch Length (in)

Center Line Distance

7t0-

Min

(in)

Max

(in)

4.2
4.2
4.2
5.2
5.2
6.2
10.2
8.5
8.5
7/8
7/8

47.8
43.8

High
Low
High
Low
Mid-Low
High

879

872-1066
1068-1280

Mid-Low

Mid-Low
Pulley

58
56
S215T

t3!_
49.3

Mid-Low
Center Line Distance

High
Low
High
Low

Belt. Type

Pulley

57
525

Ball
Min (in.)

Mid-Low

Belt.

Belt
Belt
8000

Low

Bhp

Mid-Low

Nominal

Type, Belt Drive

1. 15x15, 1 ..12x12

Mid-Low
High
Low

Continuous

Double-Wavy

Low

Mid-Low

Maximum

Copper Tubes, A_uminum
315
Centrifugal

(in)

Type Drive

Nominal

Fins

_/3
1100

Fins/in.

Quantity

Lanced

12,500

Face Area (sq ft)
EVAPORATOR
FAN

Motor

Tubes with Atuminum
1 17
22.2
Propeller
324

Diameter
(in)
Cfm {Total, all fans)

Nominal Rpm
EVAPORATOR
COIL

Motor

Enhanced

Rows

Lanced Fins, Face Split

217

Face Area (sq ft)

Rows

Refrigerant)

TXV

Sys B
Sys C
Operating

Scroll

AX
BX
BX
14.2
18.8
8.6
10.8
14.2
12

Fins, Face Sp_it

Table

1 -- Physical

Data (cont)

BASE UNIT 48PG
Speed

Change

Movab{e

(rpm)

Low

Mid-Low

41
41

High
Low

Turns

Mid-Low
Factory

Pulley Setting

5
5

High
Low

(rpm)

812

Mid-Low

983
1191

High
Fan Shaft Diameter
GAS HEAT SECTION
Rollout Switch

at Rutiey (in.)

Open Temperature

Closed

13/16

(F)

Temperature

Low

195

Med

195
195

High
Low

(F)

115

Med

115
115

High
Gas Input (Btuh)

Stage l/Stage

PGD/L
PGE/M

176,000/220,000
248,000/310,000
320,000/400,000

PGF/N
Burner Orifice Diameter
Natural Gas
Liquid

(in..drill

size)t
Std
AIt

Propane

Thermostat

Heat Anticipator

Setting

0.1285.30
0.1015.88

(amps)

First Stage

Second Stage
Manifo{d Pressure
Natural Gas

20
(in wg)
Std
AIt

Liquid Propane
Gas Valve Quantity
Gas Supply Pressure

30
80
1

Range (in wg)

5.0-13.0

Field Gas Connection
Size (in.)
HIGH-PRESSURE
SWITCH (psig)
Cutout

3/4
660 + 10

Reset (Auto.)
RETURN-AIR
FILTERS
Quantity

Size

505 + 20
Throwaway
8 .20x20x2

(in)

LEGEND
TXV
*Aluminum
tFor

Thermostatic Expansion Valve
Evaporator

applications

Coil/Aluminum

Condenser

Coil.

less than 2000 ft elevation.

Hook
rigging
shackles
DetailA.
Holes
in base
center
prevent

gravity.
rigging

UNIT
SIZE
16

Use
straps

A
in,
100.4

through
rails

wooden
top
from
damaging
B

mm
2550

in.
36 54

holes
in
centered

are

skid,

C
mm
914 1371

in,
52.4

base
rail,
around

when
unit.

rigging,

D
mm
1331

in.
5%0

as
the

E
mm
1295

in.
350

shown
unit
to

MAX,
mm
889

Ib
1959

WEIGHT
k_
890

(;06229

Fig. 2 - 48PG

Rigging

Label

Installation

Onto

Curb

The 48PG units are designed to fit on the accessory full perimeter
curb. Correct placement
of the unit onto the curb is critical to
operating
performance.
To aid in correct positioning,
place unit
on roof curb to maintain 1/4-in. gap between the inside of rail and
roof curb on long sides and a l/2-in, gap between the inside of rail
and roof curb on both duct and condenser
ends.
and 3, to assure proper duct opening alignment.
NOTE:

Before

connection
Condensate

UNIT

positioning

Refer to Fig. 1

unit on curb. make sure bottom

drain

plug is tight. See Step 6 -- Install External Trap for
Drain concerning
bottom drain connection plug.

DAMAGE

this

caution

may

result

cause

equipment

For vertical supply and return units, tools or parts could
drop into ductwork
and cause an injury.
Install a
90-degree
turn in the return ductwork between the unit
and the conditioned
space. If a 90-degree
elbow cannot
be installed,
then a grille of sufficient
strength and
density
should be installed
to prevent
objects from
falling into the conditioned
space.

Applications

Fabricate

all external
flashing

Ductwork

ductwork,

and mastic

ordering, the unit will be shipped withe the vertical duct openings
blocked off from the factory, ready for side supply installation.
If
the horizontal
supply/return
option
ordering the unit, a field-installed
convert

joints,

and building
Insulate
and

and roof

in accordance

with

Ducts
passing
through
an unconditioned
insulated and covered with a vapor barrier.

space

clearance

is not required

around

ductwork.

the vertical

NOTE:

was not specified at time of
accessory
kit is required
to

unit into a horizontal

instructions

provided

of the

applicable

prior to
available.

placing the
A minimum

must

any obstruction
to install the duct block-off
ductwork to horizontal duct flange connections

openings

Cabinet

duct block-off

supply

Step 5 --Install

configuration.

with accessory

Installation

If a plenum return is used on a vertical unit, the return should be
ducted through
the roof deck to comply with applicable
fire
codes.
A minimum

could

INJURY

Horizontal
units are shipped with an outer panel that allows for
side by side horizontal
duct connections.
If specified
during

On vertical
units, secure all ducts to roof curb
structure.
Do not connect
ducm'ork
to unit.
with counter
codes.

PERSONAL

to follow this warning
and/or personal injury.

Horizontal

in equipment

Do not slide unit to position when it is sitting on the curb.
Curb gasketing
material may be damaged
and leaks may
result.

weatherproof

Failure
damage

AND

HAZARD

Failure to follow
damage.

Step 3 --Field

UNIT
DAMAGE
HAZARD

covers

should

kit.
be completed

unit unless sufficient
side
of 66 in. is required between

clearance
is
the unit and

covers.
Install
on side of unit.

Flue Hood and Inlet Hood

Flue hood (smaller hood), inlet hood (larger hood), and screens
are shipped inside the unit in the gas section. To install, open the
heat section door. The flue hood is attached to the heat section

return-air static pressure (a negative condition)
shall not exceed
0.35 in. wg with economizer
or 0.45 in. wg without economizer.

panel from the outside

These

The inlet hood is installed by inserting the hood through the back
of the heat panel. Attach the hood by inserting
the screws

units

are designed

for a minimum

continuous

return-air

temperature
in heating of 50°F (dry bulb), or an intermittent
operation
down to 45°F (dry bulb), such as when used with a
night set-back thermostat.
To

operate

outdoor-air
stages of

at lower

return-air

temperatures,

temperature
control must
heat when the temperature

a field-supplied

be used to initiate both
is below
45°F. Indoor

comfort may be compromised
when these lower air temperatures
are used with insufficient heating temperature
rise.

Step 4 --Make
Vertical

Unit Duct Connections

Supply/Return

Configuration

Unit is shipped in vertical supply/return
configuration.
Ductwork
openings are shown in Fig. 1 and 3. Attach the ductwork
to the
roof curb. Do not attach duct directly

to the unit.

using the screws provided.

(See Fig. 4 and

5.)

provided through
the intake hood.
NOTE:

When

the combustion

the clearance
properly

installed,

fan housing.

holes

in the heat panel

and into

the flue hood will line up with

(See Fig. 6.)

_OIES
I

WE:6HTS SHOWN ARE FOR 48PG I_I ilEAT) UN[T
W:TH ALU_[NU_ CO:LSAND
STANDARR DRIVE
EOR WRIGHTS OR OPTIONAL [OU:PMEN:¸ CONSULT
PRODUCT DAIA BOOK

BO NOT LOCATE ADJACENT UNITS W[TIi ELUE B[SCHARGE
EARING ECO_ONIZER [I_[E:

R 5M6"
{135 O]

_INIMUN CLSARANCE ([ORAL CODES OR JUSISO[CTIONS MAT PRRVAI])
:RONT 48 INCHES TO CO_RUST:CL_ SURFACES [18 [NC_ES _RN
US:NG ACCESSORY ELD[ RiSCHARGR REFLECTOR)¸
_HEC ROT USINO ROOf CURB I: I_CH} RO[lO_ OF BASE RAN lO
CO_BUST:B[R RDREACES
_HER NO: USINB ROOF CURB {0 INCHES1 i0 ROTTO_ OF BASE RA:L
R:BRT S:D[FRBNT
AND _AC_ SIDES 136 :NCiIESI :OR PROPER
CONDENSER A:RFEOW
d OVERHEAR 160 INCHES)iO ARSUR_ PRORER CONDENSER AIRFLOW
_ REIWREN UN[_S, CONIROL BOX SIDE, 4Z IN PER NEC
[ BETWI:_N UN[i A_B UNOROUNCED SURFACE CONTROL BOX SERE
136 INCHES PER NEC)
g RETW[RN UNIT ANO BROCK BE RBNCRETR _ALI ANR OTHER
GROUN_ER SURFACES CONTROL _OX S:RE 142 INRFRSI PER NEC
_ CLEARANCE IN FRONT OT INDOOR _0iOR ACCESS FOR BLOWER SLED
RfMBVAL 8_ _
: CIRARANC[ fOR CONPLRTE CONDENSATE PAN RR_OVAL 7"8
_ ON UNITS WITH _CONO_[RER AL{BW 4"0" IRO_ LEfl SlOE
EOR SERVICE ACCESS TO ECONOMIZER¸
m IIORIZONTA[ SUPPL¥ AND REtURN,TO INCHES)
b

DOWN SilOT DUCTS RESIGNED TO BR ATTACHE_ TO ACCESSORT
ROOF CRRO ONLY¸ if UNII :S MOUNI[_ SlOE SUPPLY [[
[S RRCOMMRNDED THE _UCIS _USI BE SDPPORIED BY
CROSS BRACES AS RONE ON ACCESSORY ROOF CURB

D:_ENS:ONS IN I

_IIIL T_I[E_CERI:ON OT CLEARANCE FOR :_[ CO_OENSER COIL,
COM_DSTI_IE SURTACRS AND TI4EDAMPER/POWER EXHAUST AS
STATRD IN NOTR _R A REMOVAC[{ FENCE OR _ARR[CADR
REQUIRES NO CleARANCE

OIMENS:ONS ARE iROM OUISIOE OE CASE RAIL
ALIO_ O ¸ 5/16 [81 ON EACH SlOE FOR tOP COVER DRIP EBGR

UNITS _AY BE [NS:AIIED ON CO_B_ST[BLE E[OORS _AR_ IRO_
CLASS A,B,C ROOF COVERING MATERIAL :F SET ON CASE RAILS¸

ARE [N _ILI[_ETE£S OR _ILOGRAMS

4" 5 IWl_"
1_363 51

797/8"
[86141
:"

1:
CONBENSAIE
I_ARRERS
ROVER

@[59 81
POWRRRUP£17
_NOR_OUT
(THRU CURB}

R 3/4'

65/8"
{168 O}

[6DO 0}
TTR
IINCL@E8
WITH UNTil
53/4'

CENTER O_ GRAVIIT

REAR

134993]

Im4_I_[RECT[ON

55/S"

[4480]r-

OF A[R FIO_

4 1/2"
{114 7]_

4 9/16"

9 1/4"
[2568 O]

TYR

1 3//G"

6 1/4"
[/586]_

[30

l
8114"
[513

/ //_
{18S 61

ACCESS DOOR

_/611

l'flP

gg_
[380

............

............. CONIT{NSER COlE

8]
;OO

/_'f
!'3/16'<

:::=::::::3"

Z 1R/16 ¸¸
[:2934]

OOi)

[<,OR
T:7/C_

6 7/8'
[1_4/173]
RETURN
7 13//6"
[183 3]_
R RIB"
[5_6]

SUPPIf

AT S CTION

:7P
R 1R/T6'
[2234 l]
.....................
[NSIOE RAILS

LEFT SIDE

BAROMRTRIC REIEIE
(:NCLUDED W:TH UNIT)
POWER _XBAUST
_POWER
SUPPLY
ORERAIING POS:FION
ACCESS COVER
(OPiION)

ACCRSS DOOR

L A:R

C 1 51}6'
......................................... [R7Z7 O]
:NSIOE RAILS

AC(ESS
DOOR

RICHT SIDE

FRONT
(107056

Fig. 3 - Base

Unit Dimensions

FLUE HOOD

When

INLET HOOD

plug

°1

using
(red)

the standard
in the

side drain

alternate

bottom

installing the unit. (See Fig. 7.)
To use the bottom drain connection

connection,
connection

make

sure the

is tight

before

for a roof curb installation.

relocate
the factory-installed
plug
(red)
from the bottom
connection
to the side connection.
A 1/2-in. socket extension can
be used to remove the plug. (See Fig. 7.) The piping for the
condensate
drain and external trap can be completed after the unit
is in place.
All units must have an external trap for condensate
drainage.
Install a trap at least 4-in. deep and protect against freeze-up. If
drain line is installed downstream
from the external trap, pitch the

GAS SECTION
ACCESS DOOR
C06230

Fig. 4 -

Flue and Inlet Hood

Locations

line away from the unit at 1 in. per 10 ft of run. Do not use a pipe
size smaller than the unit connection
(3/4-in.). (See Fig. 8 and 9.)
The 48PG units are provided with a removable
condensate
pan
for ease of cleaning.
It is recommended
that a union be placed
between the unit and condensate
drainage to ease the removal of
the pan during servicing. Adequate clearance should be allowed if

Drain
The unit's

3/4-in. condensate

Step
--Install
bottom 6and
side of
determine

drain connections

are located

on the

theExternal
unit. Unit Trap
dischargefor Condensate
connections
do

the use of drain

can be used with vertical

connections:

applications.

either

drain

not
connection

removal of condensate
condensate
pan access
removal.

pan is required.
Allow 64-in. between
panel and any obstruction
for complete

See Fig. 3 for locations.

ECON( ,MIZER HOODS

CONDENSER
COIL ACCESS
PANEL
OUTDOOR

AIR

SCREENS

ELECTRIC
HEAT ACCESS
PANEL

BAROMETRIC
RELIEF DAMPER
HOODS

ELECTRICAL"
OPTIONS
PANEL

FILTER
ACCESS DOOR

BASEPAN

CONTROL

CONNECTIONS

AND

ACCESS

PANEL

BOX

COMPRESSOR
DOOR
C06309

Fig. 5 -

Panel and Filter

Locations

Table

HEAT
EXCHANGER
SECTION

2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
11,000
12,000
13,000
14,000

30
31
31
31
31
32
32
32
35
36
37
38
39

GAS

*As the height above sea level increases, there is less oxygen per cubic
foot of air. Therefore, heat input rate should be reduced at higher altitudes. Includes a 4% input reduction per each 1000 ft.
1-Orifices available through your Carrier dealer.

COMBUSTION

MAIN

FAN

BURNER
SECTION

HOUSING

Table

Gas Heating

3--Orifice

Quantity
ORIFICE
QUANTITY

UNIT

C06232

Fig. 6 - Typical

Compensation*
NATURAL GAS ORIFICE1"
30

MOTOR

MAIN

2--Altitude

ELEVATION (ft)
0-1,999

Low Heat (48PGD/L)
Medium Heat (48PGE/M)
High Heat (48PGF/N)

Section

Conversion

SIDEDRAIN
PLUG

to Propane

5
7
9

Gas

Use accesso_
propane gas conversion
kit when converting
this
unit for use with propane fuel usage for elevations up to 7000 ft.
For elevations
correct orifice

above 7000 ft, refer to Table 4 to identify the
size for the elevation.
See Table 3 for the number

of orifices required for each unit size. Purchase these orifices from
your local Carrier
dealer. Follow
instructions
in accesso_
Installation Instructions
to install the correct orifices.

Table

222................

ELEVATION

BOTTOM
DRAIN
PLUG
C06233

Fig. 7 -

Step 7 --Orifice

Condensate

Drain

Pan

Change

This unit is factory assembled for heating operation using natural
gas at an elevation from sea level to 2000 ft. This unit uses orifice
type LH32RFnnn,
drill size diameter
High

Elevation

where "nnn" indicates the orifice
in thousands of an inch.
(Above

size based

2000 ft)

Use accessory
high altitude kit when installing
this unit at an
elevation of 2000 to 7000 ft. For elevations
above 7000 ft, refer
to Table 2 to identify the correct orifice size for the elevation. See
Table 3 for the number
of orifices required for each unit size.
Purchase
these orifices from your local Carrier
instructions
in accessory
Installation
Instructions
correct orifices.

dealer. Follow
to install the

0-1,999
2,000
3,000
4,000
5,000
6,000
7,000
8,000
9,000
10,000
11,000
12,000
13,000
14,000

4--Propane

(ft)

Gas Conversion*
PROPANE GAS
ORIFICE1"
38
40
40
41
41
42
42
43
43
44
44
45
46
47

*As the height above sea level increases, there is less oxygen per cubic
foot of air. Therefore, heat input rate should be reduced at higher attitudes. Includes a 4% input reduction per each 1000 ft.
1-Orifices available through your Carrier dealer.

Step 8 --Install

Gas Piping

Step 9 --Make

Connections

(For more details, refer to the Controls,
troubleshooting
manual)

year and addendum
Canada,
installation

Field Power

CAN1.B149.1
burning
Support
example,

Z223.1A-latest
year entitled
must
be
in
accordance

and

CAN1.B149.2

installation

HFGC.
with

codes

for

In
the

gas piping
as shown
in the table in Fig.
a 3/4-in. gas pipe must have one field-fabricated

Install field-supplied

manual

gas shutoff

have a

valve with a l/8-in.

NPT

piping must include
Install a field-supplied

and union.

(See

Fig.

and

units are factory wired for 230-v power supply. If
unit is to be connected
to a 208-v power supply,

on the primary

side of the transformer.

Refer to unit label diagram
provided

at unit. The pressure tap is
to the gas valve. Field gas

sediment
trap
gas regulator.

terminal

pipe guide

pressure tap for test gage connection
located on the gas manifold,
adjacent

operation,

transformers
(TRAN1 and TRAN2)
must be rewired by moving
the black wire with the l/4-in, female quick connect from the
230-volt
connection
and moving
to the 200-volt
l/4-in, male

10. For
support

an 18-ft long gas pipe would

minimum of 3 support beams. See Fig. 10 for typical
and locations of external manual gas shutoff valve.

start-up,

Supply

All 208/230-v
the 208/230-v

gas

appliances.

beam every 8 ft. Therefore.

Electrical

Unit is equipped for use with natural gas. Refer to local building
codes, or in the absence of local codes, to ANSI Z223.1-1atest

for field

Laboratories)
When

wire

approved

installing

for additional
connections.

information.
Use

copper/aluminum

units,

provide

Leads

connector.

disconnect

per

NEC

(National

Electrical
Code) Article
440 or local codes. For non-fused
disconnects,
size the disconnect
according
to the sizing data
provided in the electrical data tables. If a fused disconnect is used,
determine
the minimum
size for the switch
based
on the

11.)

disconnect
sizing data provided in the electrical data tables
then coordinate the disconnect
housing size to accommodate
UNIT
DAMAGE
HAZARD

AND

PERSONAL

INJURY

Failure to follow this warning could result in damage
equipment and/or personal injury.

Maximum

Natural

gas pressure

not be less than 5.0 in. wg or greater
sizes.

at unit gas connection

Overcurrent

Protection

on the unit informative
plate.
wiring must comply with NEC

(MOCP)

and
the

device size as marked

(See Tables 5 and 6.) All field
and local codes. Size wire based

on MCA (Minimum
Circuit Amps) on the unit informative plate.
See Fig. 12 for power wiring connection
to the unit leads and

Do not pressure test gas supply while connected to unit.
Always
disconnect
union
before
servicing.
High
pressures
can cause gas valve damage resulting
in a
hazardous condition.
IMPORTANT:

are

(Underwriters

equipment
Route

ground.

power

and ground

lines through

control

box end panel or

unit basepan (see Fig. 3) to connections
as shown on unit wiring
diagram and Fig. 12. Factory leads may be wired directly to the
disconnect.

must

than 13.0 in. wg for all heat

Size gas-supply
piping for 0.5-in. wg maximum
pressure
Do not use supply pipe smaller than unit gas connection.

drop.
UNIT

DAMAGE

HAZARD

Failure

to follow

this caution

may result in damage

to unit.

The correct power phasing is critical to the operation
of the
scroll compressors.
An incorrect phasing will result in an
alarm being generated
and compressor
operation
lockout.
Should this occur, power phase correction
must be made to
the incoming power.
OPTIONALUNIONS
TOALLOWFORCONDENSATE
_
PANREMOVAL

CONDENSATE
PAN ACCESS
PANEL

C06234

Fig. 8 -

External

Trap

for Condensate

Drain

C.A1

Jm[

MINIMUM
PITCH

_-'_t.

I
I

FIELD

FACTOR

POWER

I
zLU
Z Z

OCt
©LU
£3

I
SEE

WIR!_G

I
I
I

NOTE

I I _

WIRING ff:_

EQUIP GND

_..ROOF

C06237

CURB

DRAINPLUG

Fig. 12 - Field

Power Wiring

Connections

NOTE: Trap should be deep enough to offset maximum unit static difference
A 4-in. trap is recommended.

C06291

Fig. 9 -

Condensate

Drain

Piping

X
9" MINIMUM
CLEARANCE
SHuToPANEL
REMOVAL
MANUAL
GAS

FF VALVE*

BASE

ELECTRICAL

*,-{
GAS

GAS

minimize

Field

National

*Field

supplied.

NOTE:

all

Fuel

local

Gas

Code

P,PE
NOMINAL STIEEL
DIAMETER

SPACING
OF SUPPOBTS
X DIMENSION
(ft)

Unit failure
3/4

Or
1/2

11/4

8
_

larger

coud result

in electrical

injury

must

conform

field

if an electrical

fault

should

of electrical wire or conduit
ground
when
installed
in
electrical codes. Do not use
ground.

to temperature

wiring

must

limitations

comply

with

for type

NEC

and local

Operating
voltage to compressor
nmst be within voltage range
indicated on unit nameplate.
Voltages between
phases must be
balanced within 2%.

SUPPORTS
]{

(in.)

wiring

"T" wire. All
requirements.

codes.

SPACING

personal

occur. This may consist
approved
for electrical
accordance
with existing
gas piping as an electrical

LEGEND
NFGC

AND FIRE HAZARD

The cabinet MUST have an uninterrupted
or unbroken
ground according to NEC ANSI/NFPA
70-2002
and
Canadian Electrical (:ode CSA C22.1 or local codes to

REGULATOR_

SHOCK

Failure to follow this warning
shock, fire. or death.

ROOF
DRIPCURB
LEG PER NFGC_
FIELD-FABRICATED
SUPPORT*
METER

R__

FROM

Details

as a result

of operation

on improper

excessive
phase imbalance
constitutes
damage to electrical components.

abuse

line voltage
and

may

cause

C06115

Fig. 10 - Gas Piping
Thru-the-Curb

Guide
Service

Field Control
Humidi-MiZer

(With Accessory
Connections)

MANUAL SHUTOFF
(FIELD SUPPLIED) "_

thermostat
accessory.

r'F1

according to the installation
instructions
included with
Locate thermostat
assembly
or space temperature

sensor on a solid interior
average temperature.

SUPPLY

Route

PRESSURETAP
(1/8" NPT PLUG)

thermostat

wall in the conditioned

or space temperature

sensor

NOTE:

diagram

insulated

For 50 to 75 ft, use

wire (35°C

For over 75 ft, use

a junction

Set heat anticipator

settings

Fig. 11 - Field Gas Piping

minimum).
minimum).
connected

All wire larger
at the thermostat

box and splice at the thermostat.
as follows:

VOLTAGE

STAGE 1
(Wl) ON

STAGE 1 AND 2
(Wl AND W2) ON

All

0.14

0.20

Settings

may be changed

comfort

for a particular

(American

wire (35 °C minimum).

no. 14 AWG insulated
wire (35°C
than no. 18 AWG cannot be directly
and will require

through
on unit

and in Fig. 13 or 14.

no. 16 AWG insulated

C06236

to sense

terminals
as shown

For wire runs up to 50 ft. use no. 18 AWG

Wire Gauge)
'_----- SEDIMENT TRAP

space

cable or equivalent

single leads of colored wire from subbase
conduit into unit to low-voltage
connections
label wiring

Unit can be controlled
with either a Carrier-approved
accessory
thermostat or a Carrier-approved
space temperature
sensor. Install

_'_

LINIT UNO__N

Wiring (Units Without Optional
Adaptive Dehumidification
System)

slightly
installation.

to provide

a greater

degree

:::

NOTE:

For wire runs up to 50 ft, use no. 18 AWG

Wire Gauge)

insulated

no. 16 AWG insulated

For 50 to 75 ft, use

wire (35°C

For over 75 ft, use

minimum).

no. 14 AWG insulated
wire (35"_C minimum).
than no. 18 AWG cannot be directly connected
and will require

a junction

Set heat anticipator
::C('

(American

wire (35 °C minimum).

settings

All wire larger
at the thermostat

box and splice at the thermostat
as follows:

T( :: t,,t
C06292

Fig. 13 - Field Control Thermostat

VOLTAGE

Wiring
All

STAGE 1
(Wl) ON
0.14

STAGE 1 AND 2
(Wl AND W2) ON
0.20

T-56 SPT
SEN

Settings may be changed slightly to provide a greater degree of
comfort for a particular installation.
Humidity Control

SET

Unit can be controlled with either a Carrier accessory
Thermidistat device or a Carrier-approved accessory humidistat
(switch output). The input for an accessory humidity sensor with
4 to 20 mA output is another option available when an
economizer board is installed. Install the humidity control device
according to the installation instructions included with the
accessory. Locate the device on a solid interior wall in the
conditioned space to sense average humidity. Carrier Thermidistat
device wiring connections are shown in Fig. 15. General
humidistat
wiring
connections
are shown
in Fig. 16.
Configuration of the unit control is required to specify the control
input type before unit operation. Refer to the controls, start-up,
operation and troubleshooting manual for configuration.

JUMPER

SPT -- Space Temperature Sensor
C06239

Fig. 14 -

Field Control
Sensor

Space

Temperature

Wiring

Units with the Humidi-MiZer option receive a discrete input from
a field-installed device (such as from the Carrier humidi-stat or
Thermidistat device). The discrete input is connected to the TB1
terminal strip points labeled Humidistat 1 and 2. As this is a
discrete input, one of the connection points is for power to the
switch and the other is the return path. (See Fig. 16.)
A space relative humidity sensor input (SP.RH) is only available
if an economizer board (ECB) is installed in the unit and then the
sensor can be connected to the OAQ point TB1-4. (See Fig. 16.)
This input is used instead of the discrete humidistat or
thermidistat inputs. The input controls the Humidi-MiZer using
the 4-20mA as percent humidity. The relative humidity value
(measured by the relative humidity sensor) can be displayed on
the Scrolling Marquee, in the space through a System PiloU"
device, or can be read by other CCN devices where it can be used
to perform more advanced functions. The humidity sensor must
be configured correctly; refer to the Controls, start-up, operation,
and troubleshooting manual for details.
If the customer also wishes to install a smoke detector into a
Humidi-MiZer
equipped
48PG unit. the fire shutdown
connection points are on Plug PL-19, located in the economizer
section. See the unit wiring schematic for wiring. For third-party
smoke detector, refer to Fig. 17.
Point 19-3 is the 24 vac power source for the detector. Point 19-4
is 24 vac power for the indoor fan contactor control. Point 19-5 is
the 24 vac signal input for fire shutdown. If an immediate fan
shutdown is desired, install a normally closed contactor between
19-3 and 19-4.

Field Control Wiring (Units With Optional Humidi-MiZer
Adaptive Dehumidification System)
Units require temperature control inputs for cooling and heating
operation and humidity control inputs for Humidi-MiZer
operation.
TM

Temperature Control
The unit can be controlled with either a Carrier-approved space
temperature sensor, a Carrier accessory Thermidistat
device, or
a Carrier-approved accessory thermostat. Install the temperature
control device according to the installation instructions included
with the accessory. Locate the device on a solid interior wall in
the conditioned space to sense average temperature. Carrier space
temperature sensor wiring connections are shown in Fig. 14.
General thermostat field control wiring connections are shown in
Fig. 13. Carrier Thermidistat device wiring connections are
shown in Fig. 15. Configuration of the unit control is required to
specify the control input type before unit operation.
TM

Route thermostat or space temperature sensor cable or equivalent
single leads of colored wire from subbase terminals through
conduit into unit to low-voltage connections as shown on unit
label wiring diagram and in Fig. 13-15.
THERMIDISTAT

DUE c DDD
I
I
I

I
I
I

TBI
RUMIDISTAT

ROOFTOP

UNIT
C07055

Fig. 15 - Field Control Thermidistat

Wiring

I I
I I
J

HUMIDITY

SENSOR

HUMIDISTAT

C07045

Fig. 16 -

Humidi-MiZer

Low-Voltage

Terminal

Strip

3. The

48PG_
Humldi;-MiZer
RTU

Pk19

- Humidity

Sensor/Humidistat

barometric

_[-:
@

(SPOT)

; _ )-

should

Smoke

Detector

Outdoor-Air

the following

procedure

Hoods

relief hoods

2. Remove

complete

assembly

from

screws

relief/power

Discard

that

secure

exhaust

or recycle wooden

the

in the

hoods

the

from

economizer

panel.

exhaust
hood on the
panel. Secure hood to

Step 2. Repeat

for second

Rotate hood

hood until
the bent
until hood

top flange of the
flange
on the
is flush with the

(See Fig. 19 and 21.)
screws

securing

clip on top of the flange

of each

form Step 1. (See Fig. 19.)

Step 11 --Install

All Accessories

After all of the factory-installed
options have been adjusted,
install all field-installed
accessories.
Refer to the accessory
installation

condenser

economizer

saved

panel by rotating
hood
engages

instructions

Step 12 --Configure

the

barometric
railing.

Slide

operation.

the flange and letting filter drop behind bracket holding
barometric
relief hoods.
Repeat for second hood. Install
baffle between the outdoor air hoods with screws saved

condenser
section under the slanted cnil fnr shipping. (See
Fig. 18.) Barometric
relief/power
exhaust
hoods
are
shipped inside of economizer
hoods. Remove screws that
secure the wooden rails of the hood assemblies to the unit.
Save screws.
section.

open during

opening.
Rotate clip 180 degress
and tighten
screw.
Install l-in. filter provided by inserting under the clip on

hoods:

are located

screws

economizer
economizer

6. Loosen

(Units with

to install the outdoor-air

and barometric

the

hole in flange of economizer
panel with left edge of
Hang economizer
hood on the top flange of the

hood.
More information
is available in the third party control section
the controls, start-up, operation, and troubleshooting
manual.

1. Economizer

economizer
panel. Hood will support itself from flange.
Align holes in hood with holes in panel and secure
hood
to panel with screws saved from Step 2. Repeat for second

C07046

Perform

secured

(See Fig. 19 and 20.)

5. Align
hood.

Step 10 --Install
Economizer)

be free to swing

4. Hang the barometric
relief/power
mounting flange on the economizer
hood.

Third-Party

are

(See Fig. 19.)

panel with

Fig. 17 -

dampers

economizer
panel for shipping. Remove the screw holding
the barometric
relief damper to the panel for each damper.
Dampers

smoke
Detector'

relief

Wiring

Refer to unit Controls

and

on configuring

wooden

rails. Save screws.

controls.

included

with each accessory.

Controls
and Troubleshooting

book

for information

POWER EXHAUST/
BAROMETRIC

POWER
EXHAUST/
BAROMETRIC
RELIEF

MOUNTING
FLANGE

WOODEN

Fig. 20 -

Relief/Power

Economizer
Exhaust

Barometric
Hood

C06290

Fig. 18 -

(;06262

ECONOMIZER
HOOD

RAILS

HOOD

Relief/Power

Exhaust

Flange

and Barometric

Hoods

Shipping

Positions

MOUNTING
FLANGE

ECONOMIZER
HOOD

BAFFLE

ECONOMIZER
HOODS

XHAUST/
ECONOMIZER
PANEL

BAROMETRIC

i
BAROMETRIC
RELIEF
DAMPER
SCREW
(TYP)

RELIEF

HOODS

C06261

Fig. 19 - Hood

(;06263

Installation

Fig. 21 -

Economizer

Flange

Table
5--Electrical
NOMINAL
UNIT
48PG

VOLTAGE
RANGE

POWER
SUPPLY

Min

(V-Ph-Hz)

208/230-3-60

187

COMPRESSOR
No. 1

No. 1

Max

RLA

253

LRA

18.1

Data --

RLA

137

18.1

LRA

137

Units Without

No. 1
RLA

17.6

LRA

123

OFM
FLA
FLA
Qty (ea)

Optional

Convenience

COMBUTION
FAN
MOTOR
FLA

1.9

PWR
EXH
FLA*

0.52
3.0

Outlet

460-3-60

414

506

9.0

7.7

1.0

0.30
1.2

575-3-60

518

633

6.8

6.1

0.8

0.24
3.0

LEGEND

Example:

FLA

Full Load

HACR

Reating,

IFM

indoor

LRA
MCA

Looked
Rotor Amps
MinimumCircuitAmps

MOCPNEC

MaximumOvercurrentProtection
National
E]eotdcal
Code

OFM

Outdoor

RLA

Rated

*
Power
NOTES:
1

exhaust

MOCP

FLA

LRA

Low

10.2

74.2/74.2

90/90

_'_
Hioh

15.0
19.4

79.0/79.0
83.8/63.8

90/90
100/100

Low

10.2

77.2/77.2

90/90

_'_
High

15.0

82.0/82.0

100/100

19.4
4 8

86.8/66.8
35 8

100/100
40

80/80
86/86
91/91
84/84
89/89
94/94
39
42
44
40
43
46
29
32
34
39
35
38

482/482
491/491
529/529
486/486
495/495
533/533
917
221
940
220
224
243
168
182
197
179
186
201

and

FLA is the

Determine

Fan Motor

sum

or HACR

Never operate
a motor
2%
Use the following

Imbalance

7.4

Hinh

Lo_w

4.8

7.4

39.6

High

9,7

Low
_V_dA]
High

2.8
5.6
7.8

26.6
29.4
31.9

30
35
35
35

38.4
7

45
8

I ow

P 8

5.6

32.4

Hiah

7,6

34,9

is 460-3-60

of the

breaker

Supply
where
formula

maximum

(AB) 227
(BC) 231

FLA of two

power

exhaust

Canadian

units

may

motors

combination
protective
be fuse

load
device

or circuit

equipfor the

223
227

deviation

from

average

voltage

3 v
4v

(AO) 227
226
Maximum
deviation

1 v
is 4 v

Determine

of voltage

percent

imbalance
4

breaker

% Voltage

imbalance

= 1 go x

Voltage

227

a phase imbalance
to determine
the

in supply
percentage

max voltage
% Voltage

_ni$

Refrigeration

NED requirements
for multimotor
and
Articles
430 and 440), the overcurrent

3-Phase

vo{tage

MCA

Fan Motor

(Condenser)

In compliance
with
ment (refer to NEC

Unbalanced

Condltioning

Load Amps

unit shall be fuse
2

Amps
Air

(Evaporator)

Supply

DISCONNECT
SIZE

IFM
FLA

I ow

POWER
SUPPLY

IFM
TYPE

voltage
is greater
than
of voltage
imbalance

deviation

from

average

= 1 76%
This

voltage

= 1 go x

amount

IMPORTANT:
average

voltage

utility

company

of phase

imbalance

If the supply
immediately

voltage

is satisfactory
phase

as it is below

imbalance

is more

the maximum
than

allowable

2%, contact

your

2%
local

electric

Table
NOMINAL
POWER
SUPPLY

UNIT
48PG

VOLTAGE
RANGE

208/230-3-80

187

Data

COMPRESSOR
No. 1

-- Units With

Optional

Convenience

OFM
COMBUTION
FLA
FAN
FLA
MOTOR
RLA LRA RLA LRA RLA LRA Qty (ea)
FLA
No. 1

Min Max

(V-Ph-Hz)

6---Electrical

253

18.1

137

18.1

137

No. 1

17.6

123

1.9

PWR
EXH
FLA*

0.52
3,0

460-3-80

414

506

9,0

7.7

1.0

0.30
1,2

575-8-80

518

883

8,8

8.8

8.1

0.8

Outlet

IFM
TYPE

MCA

DISCONNECT
SIZE

MOCP

Low
Mid-Low

10,2
15,0

79.0/79.0
83.8/83.8

90/90
100/100

High
Low
Mid-Low
High
Low
Mid-Low

19,4
10,2
15,0
19,4
4,8
7,4

88.8/88.8
82.0/82.0
86.8/86.8
91.8/91.8
38,0
40,6

100/100
100/100
100/100
100/100
45
45

High
Low
Mid-Low

9,7
4,8
7,4

43,0
39,2
41,8

50
45
50

High
Low
Mid-Low

9,7
2,8
5,6

44,2
28,3
31,1

50
35
35

7,8
2.8

33,6
31,3

40
35

5,6
7,8

34,1
36,6

40
40

High
Low

0.24
3,0

POWER
SUPPLY

IFM
FLA

Mid-Low
Hiqh

FLA
86/
91/
96/
89/
95/
!00/!00
41
44
47
42
45
48
31
34
38
34
37
40

LRA

86
91
98
89
95

487/487
498/496
534/534
491/491
500/500
538/538
219
223
242
222
228
245
170
184
199
174
188
203

Example: Supply vo{tage is 460-3-60
FLA

Full Load

HACR

Heating,
LEGEND Air

IFM

indoor

LRA
MCA

Locked
Rotor Amps
MinimumCircuitAmps

MOCPNEC

MaximumOvercurrentProtaction
National
Eleotdcal
Code

OFM

Outdoor

RLA

Rated

*
Power
NOTES:
1

exhaust

and

(Condenser)

FLA. is the

3-Phase

Never operate
a motor
2%
Use the following

sum

of the

FLA of two

power

breaker

Supply
where
formula

Canadian

units

Imbalance

exhaust

may

combination
protective
be fuse

2007 Cartier Corp

Manufacturer

reserves

load
device

or circuit

equipfor the

breaker

% Voltage

imbalance

1 go x
227

a phase imbalance
to determine
the

in supply
percentage

voltage
is greater
than
of voltage
imbalance

deviation

from

average

1 76%
This

voltage

1 go x

° 7310 W Morris

amount

IMPORTANT:
average

motors

Voltage

max voltage
% Voltage

Determine maximum deviation from average voltage
(AB) 227 223
3v
(BC) 231 227
4v
(AO) 227 226
1v
Maximum deviation is 4 v
Determine percent of voltage imbalance

Fan Motor

NEC requirements
for multimotor
and
Articles
430 and 440), the overcurrent

or HACR

Refrigeration

Far) Motor

Load Amps

in compliance
with
ment (refer to NEC

Unbalanced

,_ e

Conditioning

(Evaporator)

unit shall be fuse
2

Amps

St • Indianapolis,

voltage

IN 46231

the right to change_ at any tirne_ specifications

and designs

utility

company

of phase

If the supply

voltage

is satisfactory
phase

as it is below

imbalance

is more

the maximum
than

Catalol_

notice and without

allowable

2%, contact

your

2%
local electric

immediately

]_dnted ta USA
without

imbalance

obligations.

No:48PG-26SI

Replaces:48PG

- 23SI

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CARRIER Package Units(both Units Combined) Manual L0703136

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