Carrier 48HJ004---007 Specifications

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Carrier 48HJ004---007 Specifications | Manualzz

48HJ004-007

Single-Package Rooftop Heating/Cooling

Standard and Low NOx Units

Installation, Start-Up and

Service Instructions

CONTENTS

SAFETY CONSIDERATIONS ......................

Page

1

INSTALLATION ................................

Step 1 -- Provide Unit Support ...................

• ROOF CURB

• SLAB MOUNT

• ALTERNATE UNIT SUPPORT

Step 2 -- Field Fabricate Ductwork ...............

Step 3 -- Install External Trap for

Condensate Drain ..............................

1-36

1

2

4

Step 4 -- Rig and Place Unit .....................

• POSITIONING

Step 5 -- Install Flue Hood .......................

Step 6 -- Install Gas Piping ......................

Step 7 -- Make Electrical Connections ...........

• FIELD POWER SUPPLY

• FIELD CONTROL WIRING

• HEAT ANTICIPATOR SETTINGS

4

Step 8 -- Adjust Factory-Installed Options ......

13

• COBRA

TM

ENERGY RECOVERY UNITS

• HUMIDI-MIZER

TM

ADAPTIVE

DEHUMIDIFICATION SYSTEM

• MANUAL OUTDOOR-AIR DAMPER

• CONVENIENCE OUTLET

• NOVAR CONTROLS

• PREMIERLINK

TM

CONTROL

• OPTIONAL ECONOMISER IV AND ECONOMISER2

• ECONOMISER IV STANDARD SENSORS

• ECONOMISER IV CONTROL MODES

Step 9 -- Adjust Evaporator-Fan Speed .........

PRE-START-UP ..................................

25

37

5

5

5

START-UP ....................................

SERVICE .....................................

TROUBLESHOOTING .........................

INDEX ...........................................

START-UP CHECKLIST ........................

37-42

42-48

49-53

54

CL-I

SAFETY CONSIDERATIONS

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

Untrained personnel can perform basic maintenance functions of cleaning coils and filters and replacing filters. All other operations should be performed by trained service personnel.

When working on ai>conditioning equipment, observe precautions in the literature, tags and labels attached to the unit, and other safety precautions that may apply.

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

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 phtte. Electricgd shock could cause personal injury.

Disconnect gas piping from unit when leak testing at pressure greater than 1/2psig. Pressures greater than ]h psig will cause gas valve damage resulting in haz_u'dous condition. If gas valve is subjected to pressure greater titan

1h psig, it must be replaced before use. When

_ressure testing field-supplied gas piping at

_ressures of I/2 psig or less, a unit connected o such piping must be isohtted by manu_dly closing the gas valve(s).

INSTALLATION

Unit is shipped in the vertical dischtuge configuration. To convert to horizontal discharge application, remove duct opening coveLs. Using the same screws, install covers on duct openings in basepan of unit with insulation-side down. Seals around openings must be tight. See Fig. 1.

Step 1 -- Provide Unit Support

ROOF CURB -Assemble and install accessory roof curb in accor&mce with instructions shipped with curb. See Fig. 2. Install insulation, cant strips, roofing felt, and counter flashing as shown.

Ductwork must be attached to curb, not to the unit.

If electric control power or gas service is to be routed through the basepan, attach the accessory thin-the-bottom service connections to the basepan in accordance with the accessory installation instructions.

Connections must be inst_dled before unit is set on roof curb.

critical for a watertight seal. Install gasket supplied with the

IMPORTANT: The gasketing of the unit to the roof curb is ] result in air leaks and poor unit performance.

I

Curb should be level. Unit leveling tolerances are shown in

Fig. 3. This is necessary for unit drain to lhnction properly.

Refer to Accessory Roof Curb [nstalhttion Instructions for additional infomtation as required.

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53480013-01 Printed in U,S.A.

Form 48HJ-33SI Pg 1 9-05 Replaces: 48HJ-29SI

SLAB MOUNT (Horizontal Units Only) -Provide a level concrete slab that extends a minimum of 6 in. beyond unit cabinet. Install a gravel apron in front of condenser-coil air inlet to plevent grass and foliage from obstructing airflow.

NOTE: Horizontal units may be installed on a roof curb if required.

ALTERNATE UNIT SUPPORT -- When the curb or adapter cannot be used, suppoll unit with sleeper rails using unit curb or adapter suppoll area. If sleeper rails cannot be used, suppoll the long sides of the unit with a minimum of 3 equally spaced

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

Step 2 -Field Fabricate Ductwork -Secure _fll ducts to roof curb and building structure on veltical discharge units. Do not connect ductwork to unit. For horizontal applications, field-supplied isolation flanges should be attached to horizont_d discharge openings and _11ductwork should be secured to the flanges. Insulate and weatherproof all external ductwork, joints, and roof openings with counter flashing and mastic in accor&mce with applicable codes.

Ducts passing through an unconditioned space must be insulated and covered with a vapor barriel:

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 clearance is not required around ductwork.

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

These units are designed for a minimum continuous returnair temperature in heating of 50 F (di_ bulb), or an intermittent operation down to 45 F (di_ bulb), such as when used with a night setback thermostat.

To operate at lower return-air temperatures, a field-supplied outdoor air temperature control must be used to initiate both stages of heat when the temperature is below 45 F. Indoor comfort may be compromised when these lower air temperatures are used with insufficient heating temperature rise.

REMOVABLE HORIZONTAL

RETURN DUCT OPENING COVER '_k k

\

\

\

\

\

\

_ REMOVABLE HORIZONTAL

SUPPLY DUCT OPENING COVER

Fig. 1 -- Horizontal Conversion Panels

CONNECTOR

PKG. ACCY.

CRBTMPWROO1A01

CRBTMPWROO2A01

CRBTMPWROO3A01

CRBTMPWROO4A01

1'-911/16"

[406]

C

B C

I

I

'_4I

C jl /_ _"

/ '

",\

J

D ALT

DRAIN

HOLE

",,\

1

\\

\1

I

_ I i I

IX o' 3"

1753

O"

[76]

3"

I

I

I

I

I

I

I

I

I

_B

SUPPLY AIR

OPENING

1" 1 7/16"

E341 ]

+

O" O 7116" nl]

(DOLT HEAD5)

O' 0 7/16"

HEADS)

1" 7

O'

E7B]

3'

[914]

O"

C

Y iI

GAS

3/41'

[19] NPT

POWER

3/4" [19] NPT

11/4" [31.7]

3/4"1119]NPT

11/4" [31.7]

CONTROL ACCESSORY

POWER

1/21'

[12.7]

1/2"

[12.7]

I

I

B GASKET

(SUPPLIED

(FIELD

WITH CURS)

DUCT

DUPPLIED)

2"

I

7 5/D"

[803]

-1

O" 0 7116"

[II]

(BOLT HEADD)

O' 0 7/15"

(BOLT n. _A

ROOF CURB

ACCESSORY

CRRFCURBOOIA01

CRRFCURB002A01

A UNIT

SIZE

48HJ ]

I 2'-0" I 004-007

NOTES:

1. Roof curb accessory is shipped disassembled.

2. Insulated panels.

3. Dimensions in [ ] are in millimeters.

4. Roof curb: galvanized steel.

5. Attach ductwork to curb (flanges of duct rest on curb).

6. Service clearance: 4 ft on each side.

7.

I_ Direction of airflow.

8. Connector packages CRBTMPWROO1A01 and 002A01 are for thru-the-curb type gas.

Packages CRBTMPWROO3A01 and 004A01 are for thru-the-bottom type gas connections.

O" 7/16"

TYPICAL (4) SIDES

(FIELD

FLASHING

SUPPLIED)

(FIELD

5TRIP

SUPPLIED)

(FIELD

MATERIAL

5UPPL[ED)

#

#

#

I

#

_

RIGID

(FIELD

INSULATION

DUPPLIED)

OPENING

SERVICE.

FOR

O'

BADEPAN

(SEE NOTE

ENTRY

#D)

2 1/2" o.

(APPROXD

0 o

..

SECTION "C C"

SCALE 1:4

O' 3 1/4"

[83]_ O" 9"

DEE NOTE #2

O' 0 1/4"[73

8

SUPPLY AIR

VIEW

RETURN AIR••

"A-A"

E

#

$

I

I

GAD

(SEE

5ERVICE

PLATE

1' 4 13/15"

[427]

(INSIDE)

" 6"

[152]

:IND[DE)

2 3/8 °

[Bl]

HEAD OF DOLT TO BE ON

INDIDE OF FLANGE

I

I

I

I

I

E1705]

1/8"

NOTE: CAMBRIDGEPORT

FASTENING

ALTERNATE

"SURE LOCK" CORNER

DEVICE IS ACCEPTABLE

CONSTRUCTION.

Fig. 2 -- Roof Curb Details

B

UM ALLOWABLE

DIFFERENCE (in.)

OlOCl C

1.0

Fig. 3 -- Unit Leveling Tolerances

Step 3 -Install External Trap for Condensate

Drain

-The unit's 3h-in. condensate drain connections am located on the bottom and side of file unit.

Unit discharge connections do not determine the use of drain connections; either &ain connection can be used with vertic_d or horizontal applications.

When using the standard side &ain connection, ensure the plug (Red) in the ;alternate bottom connection is tight before installing the unit.

To use the bottom &ain connection for a roof curb installation, relocate the factory-inst;dled plug (Red) from the bottom connection to the side connection.

Tile center drain plug looks like a star connection, however it can be removed with a m/2-in.

socket drive extension.

See Fig. 4. The piping for the condensate &ain find external trap can be completed after the unit is in place.

All units must have fin external trap for condensate drainage. Install a trap 4-in. deep and protect against freeze-up.

If drain line is installed downstream from the external trap, pitch the line away from the unit fit 1 in. per 10 ft of run. Do not use a pipe size smaller than the unit connection (3/4 in.). See Fig. 5.

Step 4 -Rig and Place Unit-Inspect unit for transportation dmnage, and tile any claim with transpollation agency.

Keep unit upright and do not drop. Spreader bars are not required if top crating is left on unit, and rollers may be used to move unit across a roof. Level by using unit fl_lme as a reference.

See Table 1 and Fig. 6 for additional information.

Operating weight is shown in Table 1 and Fig. 6.

Lifting holes m'e provided in base rfdls as shown in Fig. 7.

Refer to rigging instructions on unit.

All panels must be in place when rigging and lifting.

POSITIONING -Maintain clefuance around find above unit to provide minimum distance from combustible materials, proper airflow, and service access. See Fig. 7.

Position unit on roof curb so that file following clearances are maintained: 1/4 in. clearance between the roof curb find the base rail inside the front and refu'. 0.0 in. clearance between the roof curb and the base rail inside on the duct end of the unit. This will result in the distance between the roof curb and the base rail inside on file condenser end of the unit being approximately equal to Fig. 2, section C-C.

Do not install unit in an indoor location.

Do not locate unit air inlets near exhaust vents or other sources of contmninated air

Be sure flint unit is installed such that snow will not block

the combustion intake or flue outlet.

Unit may be installed directly on wood flooring or on

Class A, B, or C roof-covering material when roof curb is used.

Although unit is weafllerproof, guard against water from higher level runoff and overhangs.

Ix>cate mechanical draft system flue assembly at least 48 in. from an adjacent building or combustible materiffl. When unit

is located adjacent to public walkways, flue assembly must be fit least 7 fl above grade.

NOTE: When unit is equipped with an accessory flue dischmge deflector, allowable clearance is 18 inches.

Flue gas can deteriorate building materials.

Orient unit such that flue gas will not affect building materials.

Adequate combustion-air space must be provided for proper operation of this equipment.

Be sure that installation complies with all local codes and Section 5.3, Air for Combustion find

Ventilation, NFGC (National Fuel Gas Code), ANSI (American National Standards Institute) Z223.1-1984 find addendum

Z223.1a-1987.

In Canada, installation must be in accordance with the CANI.BI49.1

and CANI.BI49.2

installation codes for gas burning appliances.

Flue vent dischmge must have a minimum horizontal clearance of 4 fl from electric and gas meters, gas regulators, find gas relief equipment.

After unit is in position, remove shipping materials and rigging skids.

HORIZONTAL

DRAIN OUTLET

DRAIN PLUG

NOTE: Drain plug is shown in factory-installed position.

Fig. 4Condensate Drain Pan

\ OPEN 2" MINI

I IIII

VENT / I I IIII

SEE

NOTE

_L_

.,,_ROOF

CURB

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

Fig. 5 -Condensate Drain Piping Details

36"- 54"

(914-1371)

POSITION ALL SEAL STRIPS

IN PLACE BEFORE POSITIONING

UNIT ON ROOF CURB,

DUCT END

DETAIL "A"

SEE "A_DETAIL

PLACE UNIT ON CURB AS CLOSE

TO DUCT END AS POSSIBLE

NOTES:

1. Place unit on curb as close as possible to the duct end.

2. Dimension in ( ) is in millimeters.

3. Hook rigging shackles through holes in base rail as shown in detail "A." Holes in base rails are centered around the unit center of gravity. Use wooden top skid when rigging to prevent rigging straps from damaging unit.

4. Weights include base unit without economizer.

See Table 1 for unit operating weights with accessory economizer.

6. Weights include base unit without the Humidi-MiZer

TM adaptive dehumidification system. See Table 1 for unit operating weights with the Humidi-MiZer system.

UNIT

48HJ

004

005

006

007

All panels must be in place when rigging.

OPERATING

WEIGHT

Ib

530

540

560

635 kg

240

245

254

288

"A" "g" "C" in.

mm

73.69

1872

73.69

1872

73.69

1872

73.69

1872 in.

mm

35.50 902

35.50 902

35.50 902

35.50 902 in.

mm

33.31

847

33.31

847

33.31

847

33.31

847

Fig. 6 -- Rigging Details

Step 5 -Install Flue Hood -Flue hood is shipped screwed to the burner comp;utment access panel.

Remove from shipping location and, using screws provided, inst;dl flue hood in location shown in Fig. 7 and 8.

For units being installed in California Air Quality Management Districts which require NOx emissions of 40 nanogrmns/ joule or less, a low NOx unit must be installed.

NOTE: Low NOx units are available for 3 to 5 ton units.

Step 6 -Install Gas Piping -Unit is equipped for use with type of gas shown on nameplate.

Refer to local building codes, or in the absence of local codes, to

ANSI Z223.1-1984 and addendum Z223. IA- 1987 entitled

National Fuel Gas Code. In Canada, installation must be in accordance with the CANI .B149.1

and CANI .B149.2

installation codes for gas burning appliances.

For natural gas applications, gas pressure at unit gas connection must not be less than 4 in. wg or greater than 13 in. wg while the unit is operating.

On 48HJ005-007 high-heat units, the gas pressure at unit gas connection must not be less than

5 in. wg or greater than 13 in. wg while the unit is operating.

For propane applications, the gas pressure must not be less than

5 in. wg or greater than 13 in. wg at the unit connection.

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

Support gas piping as shown in the table in Fig. 9. For example, a 3/4-in. gas pipe must have one field-fabricated support bemn every 8 ft. Therefore, an 18-ft long gas pipe would have a minimum of 3 support beams, and a 48-ft long pipe would have a minimum of 6 support beams.

See Fig. 9 for typical pipe guide and locations of extermd manual gas shutoff valve.

NOTE: If accessory thin-the-bottom connections and roof curb are used, refer to the Thin-the-Bottom Accessory Installation

Instructions for information on power wiring and gas connection piping.

The power wiring, control wiring and gas piping can be routed through field-drilled holes in the basepan.

The basepan is speci_dly designed and dimpled for drilling the access connection holes.

When connecting the gas line to the unit gas v_dve, the installer MUST use a backup wrench to prevent damage to the v_dve.

Step 7 -- Make Electrical Connections

Unit cabinet must have an unintenupted, unbroken electric_d ground to minimize the possibility of pel.sonal injury if an electrical fault should occm: This ground may consist of electric_d wire connected to unit ground lug in control compartment, or conduit approved for electrical ground when installed in accordance with NEC (Natiomd Electrical

Code), ANSI/NFPA (National Fire Protection Association), latest edition, and local electrical codes. Do not use gas piping as an electrical ground Failure to follow this warning could result in the installer being liable for personal injury of others.

FIELD POWER SUPPLY -All units except 208/230-v units are factory wired for the voltage shown on the nameplate.

If the 208/230-v unit is to be connected to a 208-v power supply, the transformer must be rewired by moving the black wire from the 230-v terminal on the transformer and connecting it to the 200-v terminal from the transformel:

Refer to unit label diagram for additional information.

Pigtails me provided for field service.

Use factory-supplied splices or UL (Underwriters' Laboratories) approved copper connectoE

UNIT

48HJ_004

4BHJ_OO5

4BHJ_OO5

4BHJ_O07

STD.

UNIT !CONOMI_ERI_ VERT. ECONIV

WEIGHT

LB KG

WEIGHT

LB KG

W/P.E.

LB

(A) (SI (C) (D)

WEIGHT CORNER WEIGHT CORNER WEIGHT CORNER WEIGHT CORNER WEIGHT

KG LB KG LB KG LB KG LB KG

530 240 50 22,7 go 40,S 127 57,G 122 55,3 138 62.8

143 84,9

FT iN.

2" S 5/16"

"J"

MM

84G.5

540 245

G35 288 152 68.S

147 55.7

1S5 74.8

171 77.5

;

3" 5 5/15"

;

1050

BOTTOM POWER CHART:

THE5E HOLE5 REG'D FOR U5E

WITH ACCE550RY

CRBTMPWROO1A01, 2A01,

PACKAGES

3A01, OR 4A01

THREADED

CONDUIT 5]ZE

WIRE

USE

REQ'D

SIZES

HOLE

(MAX.)

3/4"

1/4"

(003)

1/2"

1/2"

(001,003)

(O02,004)

1/2"FPT

ACC.

24V

7/8"[22.2]

7/B'[22.2]

DOWER_ 1 1/8"[28.4]

DOWER_ 1 3/4"[44,4]

GA5 1 1/4"[31.8]

CONNECTION

1

2"

3/8"

DIA.

DIA.

[51]

SIZES

[3B]

POWER

FIELD

SUPPLY

POWER SUPPLY

KNOCK OUT

HOLE

NOTES=

1.

DIMENSIONS

2.

_CENTER

IN [ ]

OF GRAVITY.

ARE IN MILLIMETERS.

3.

_ DIRECTION OF AIR FLOW.

4.

S.

a.

b.

c.

d.

ON VERTICAL

TO ACCESSORY

UNITS FIELD

HORIZONTAL

BE ATTACHED

DISCHARGE UNITS,

ROOF CURB ONLY.

SUPPLIED FLANGES

DISCHARGE OPENINGS,

TO THE FLANGES.

DUCTWORK TO

FOR HORIZONTAL

SHOULD

AND

BE ATTACHED

DISCHARGE

BE ATTACHED

ALL DUCTWORK

USING CURB)

CONDENSER

ONE SIDE,

GREATER

OVERHEAD,

OPERATION.

SO

O

COIL,

INCHES.

FOR iNCHES

PROPER

TO

AiR

12 iNCHES

CLEARANCE

THE OTHER.

IS OPTIONAL.

ASSURE

FLOW,

THE

PROPER

3B iNCHES

SIDE GETTING

CONDENSER

TO

SHOULD

CORNER

MINIMUM

PREVAIL):

BETWEEN

35 IN.,18

BOTTOM

CURB)

BOTTOM

CLEARANCE

UNIT,

IN.

OF UNIT

1 INCH.

OF BASE

(LOCAL

FLUE SIDE

WHEN USING

AND

ACCESSORY

TO COMBUSTIBLE

COMBUSTIBLE

FLUE

SURFACES

RAiL TO

CODES OR

COMBUSTIBLE

JURISDICTION

SURFACES

MAY

SURFACES,

DISCHARGE

(WHEN NOT USING

(WHEN

DEFLTR.

NOT

THE

FAN

3" 9"

[1144] e.

BETWEEN

F.

BETWEEN

SIDE,

UNITS,

UNIT

38 IN.

g.

h.

PER

CONTROL

NEC.

BOX SIDE,

AND UNGROUNDED

42

SURFACES,

IN.

PER NEC.

CONTROL BOX

BETWEEN

GROUNDED

HORIZONTAL

ALTERNATE

UNIT AND

SURFACES,

BLOCK OR CONCRETE

CONTROL BOX SIDE,

SUPPLY AND RETURN

CONDENSATE DRAIN

END,

IS USED.

0

WALLS AND OTHER

42 IN.

PER NEC.

INCHES WHEN THE

B.

7.

WITH THE EXCEPTION

COIL

AND c,

AND COMBUSTION

A REMOVABLE

CLEARANCE.

UNITS MAY BE INSTALLED

FROM WOOD OR CLASS A,

IF SET ON BASE RAIL.

OF THE CLEARANCE

SIDE

FENCE

AS

OR

STATED

BARRICADE

FOR THE

REQUIRES

CONDENSER

IN NOTE #Sa, b,

NO

S,

ON COMBUSTIBLE

OR C ROOF

FLOORS

COVERING

MADE

MATERIAL

CORNER

8.

G'[457] THE VERTICAL CENTER

FROM THE BOTTOM

OF GRAVITY

OF THE BASE RAIL.

IS 1'

9 71"7

UP FROM

O' 3 13/1B"

[97]

FACTORY

FLUE HOOD

F [ LTER/ECONOM

REAR

[ ZER ACCESS

ICONDENSER _L

2"11

[BOB]

3" O"

[gl 4]

PANEL_

CONTROL BOX/COMPRESSOR/

BURNER ACCESS

PANEL

4 c ft

EVAPORATOR

COIL RETURN AIR OPENING

' E/' I----i

ALTI CONDENSATE

OPENING

1S/1B"

[4S]

O" 3 SW1B"

[99.4]

FRONT

O" 3 1/16"

[78]_

G" 1 11/1G"

[1872]

I

SUPPLY

L__IJ

AIR

I

I

_[81]

1" S 1/4" [438]

FOR ECONOM]$ER [V

_O' S3Zl@"

[81]

O' I0 1S/1B"

[278]

(DISPOSABLE

_.____j

RETURN AIR

O" S 3/8" l _°'2Ss_G'EBs

1'53/4"[451]

O" S 7/1B"

O' O 3/8"

[13B]

_

RIGHT SIDE

[137]

_

"C" l' S SW1B"

[439.7]

SUPPLY AIR

FILTERS)

BLOCKOFF

PANEL

O' 7 1/4"

_[1B4]

O" lO 13/15"

1" S

1/4" h h

DO

[Sl4]

O' 4 1/1B"

2" 1 ll/1G"

[852.5]

_ r---1

VIEW 5 5

[470]

1 'G 1/2"_

//

,£4

//4/`

O" 0 7/IS'Ell.l]

_ ECONOM[$ER

L

IV

W/ POWER EXHAUST

IllS.B] TYP

8/1 G"

[104B]

EG5_ SIDE l" 4 5/16"

[414.5]

O' B S/B"

[168.23

BISGONNEGTLooATION

2" 5 3/8

[74B.

2]

_0"

INDOOR FAN MOTOR

SLOWER ACCESS PANEL

3 5/IB"

Egl.O] 1" 2 7/8"

[375.B]

_®1

"FORK TRUCK SLOTSo, 2 1/4"DIA

[573

FRONT lli

III SUPPLY

III HORIZONTAL

IlL

AIR x N h

Nil

II

Ill

OPENING

HOR[

ZONTAL

7" h h h h h l'

OUTSIDE

O" 0

8 1/4"

AIR

7/8" j

O' 5 [14B]3/4" OUT_J_L'y[BSB'B]lAIR15/1B"

OF PANEL

R IGHT S IDE

RETURN AIR

_0' S ll/1B"

[144.3]

BAROMETRIC RELIEF

E STD.

CONDENSATE DRAIN

DISCHARGE

[5143

Fig. 7 -- Base Unit Dimensions

i=

9" MINIMUM

X k -41

\

FLUE OPENING INTAKE LOUVERS

Fig. 8-Flue Hood Details

4

FROM GAS METER

LEGEND

NFGC -National Fuel Gas Code

*Field supplied,

NOTE: Follow all local codes.

SUPPORT*

SPACING OF SUPPORTS

STEEL PIPE

NOMINAL DIAMETER (in.)

1/2 a/4or I

1V4 or larger

SPACING OF SUPPORTS

X DIMENSION

6

8

10

(ft)

Fig. 9 -- Gas Piping Guide (With Accessory

Thru-the-Curb Service Connections)

When installing units, provide a disconnect per NEC.

All field wiring must comply with NEC and local requirements.

Install conduit through side panel openings indicated in

Fig. 7. Route power lines through connector to terminal connections as shown in Fig. 10.

Voltage to compressor terminals during operation must be within voltage range indicated on unit nmneplate (also see

Tables 2A-2D).

On 3-phase units, voltages between phases must be balanced within 2% and the current within 10%. Use the formula shown in Tables 2A-2D, Note 3 to determine the percent voltage imbalance. Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause

&image to electric_d components.

Such operation would inv_di-

&_te any applicable Carrier warranty.

NOTE: If accessory thin-the-bottom connections and roof curb tu'e used, refer to the Thru-the-Bottom Accessory Installation

Instructions for information on power wiring and gas connection piping.

The power wiring, control wiring and gas piping can be routed through field-drilled holes in the baseptm.

The basepan is specially designed and dimpled for drilling the access connection holes. See Fig. 2.

FIELD CONTROL WIRING -Install a Carrier-approved accessory thermostat assembly according to inst_dlation instructions included with the accessory.

Ix)cate thermostat assembly on a solid wail in the conditioned space to sense average temperature in accor&mce with thermostat installation instructions.

Route thermostat cable or equivalent single leads of colored wire from subbase termin_ds through connector on unit to lowvoltage connections (shown in Fig. 11A and 11B).

Connect thermostat wires to matching screw termimds of low-voltage connection bozud. See Fig. 11A and I lB.

NOTE: For wire runs up to 50 fl, use no. 18 AWG (American

Wire Gage) insulated wire (35 C minimum).

For 50 to 75 It, use no. 16 AWG insulated wire (35 C minimum).

For over

75 ft, use no. 14 AWG insulated wire (35 C minimum).

All wire larger than no. 18 AWG cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat.

Pass the control wires through the hole provided in the corner post; then feed wires through the raceway built into the corner post to the 24-v barrier located on the left side of the control box. See Fig.

12. The raceway provides the UL required cle_u'ance between high and low-voltage wiring.

HEAT ANTICIPATOR SETTINGS -- Set heat anticipator settings at 0.14 amp for first stage and 0.14 for second stage heating, when available.

Table 1 -- Physical Data

BASE UNIT 48

NOMINAL CAPACITY

OPERATING WEIGHT (Ib)

Unit

Humidi-MiZer

TM

Adaptive Dehumidification

EconoMi$er IV

Roof Curb

COMPRESSOR ouontity

Oil (oz)

REFRIGERANT TYPE

Expansion Device

Operating Charge (Ib-oz)

Standard Unit

CONDENSER FAN

Nominal Cfm

Motor Hp...Rpm

Watts Input (Total)

CONDENSER COIL

System

Adaptive Dehumidification System

HJE/F/H/K]M/NO04

3

530

15

50

115

42

180

1 I

3500

V4 ,825

EVAPORATOR COIL

Standard Unit

Rows.,,Finslin,

Total Face Area (sq ft)

Unit with Humidi-Mizer

Rows,..Finslin,

Adaptive Dehumidification

Total Face Area (sq ft)

EVAPORATOR FAN

°uantity..,Size

Nominal Cfm

(in.)

Maximum Continuous Bhp

Motor Frame Size

Fan Rpm Range

Motor Bearing

Nominal Motor Shaft Diameter

Pulley Center

Factory Speed

Type

Maximum Fan Rpm

Motor Pulley Pitch Diameter A/B (in.)

Fan Pulley Pitch Diameter

Belt -- Type,.,Length (in.)

Line Distance

(in,)

Turns from Closed Position

Factory Setting -Full Turns

Setting (rpm)

(in,)

(in.)

Speed Change per Full Turn of

Movable Pulley Flange (rpm)

Movable Pulley Maximum Full

Open

System

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Std

Hi-Static

Fan Shaft Diameter at Pulley (in.)

Bhp--

LEGEND

Brake Horsepower

*Single phase/three phase, tlndicates automatic reset,

**60,000 and 72,000 Btuh heat input units have 2 burners, 90,000 and

120,000 Btuh heat input units have 3 burners.

115,000 Btuh heat input units and 150,000 Btuh Heat input units have 3 burners.

l-tAn LP kit is available as an accessory.

Kit may be used at elevations as high as 2000 ft, If an LP kit is used with Low NOx units, the Low N©x baffle must be removed and the units will no longer be classified as Low N©x units.

2._15

5,5

1_,17

3,9

1...10 x 10

1200

1.20

2.40

48

56

680-1044

1075-1455

Ball

2100

1.9/2.9

2.8/3.8

l&

%

4.5

4.5

1 ...A...36

1 _.A_.39

10.0-12.4

65

65

5

6

3

31/2

826

1233

%

HJD/E/F/G/H/K]L/M/NO05

4

540

23

50

115

53

Scroll

1 I

R-22

Acutrol

TM

Metering Device

2...17

3.9

770-1185

1075-1455

Ball

2100

1.9/2.0

2.8/3.8

1/2

5/s

4.0

4.0

1..,A.,.36

1,_A_.39

10.0-12.4

7O

65

5

6

3

31/2

936

1233

5/s

HJD/E/F/G/H/K]L/M/NO06

5

560

25

50

115

50

3.9

Ball

%

5/8

4.0

4.5

75

6O

6

5

3

31/2

5/8

HJD/E/FO07

6

635

29

50

115

1 I 1

I

Propeller

I

3500

V4 ..825

180

4100

V4_1100

320

Enhanced Copper Tubes, Aluminum Lanced Fins

I I

Enhanced Copper Tubes, Aluminum Double-Wavy Fins

2_15

5.5

4_15

5.5

2_.17

Centrifugal Type, Belt Drive

1...10 x 10

1600

1,.,10 x 10

2000

1.20

2,40

48

56

1.30/2.40"

2,90

48/56"

56

1035-1460

1300-1685

2100

2.4/3.4

3.4/4,4

1 ..-4-.40

1,..A-.40

14.7-15.5

1248

1396

I

I

60

4100

V4_1100

320

4_,15

73

2_17

5.2

1..,10 x 10

2400

2,40

2,90

56

56

1119-1585

1300-1685

Ball

2100

2,4/3,4

3,4/3,4

5/8

7&

4.0

4.5

1 ..,A,..38

1..,A_.40

14.7-15.5

95

60

5

5

3

1305

1396

5/8

IIThree-phase standard models have heating inputs as shown, Singlephase standard models have one-stage heating with heating input values as follows:

HJD005-006,HJE004 -72,000 Btuh

HJE005-006,HJF004 -- 115,000 Btuh

HJF005-006 -150,000 Btuh

***California compliant three-phase models.

tttCalifornia SCAQMD compliant low NO× models have combustion products that are controlled to 40 nanograms per joule or less,

Table 1 -- Physical Data (cont)

HJE/F/H/K]M/N004 HJD/E/FIGIHIK/L/M/NO05 BASE UNIT 48

FURNACE SECTION

Rollout Switch Cutout Temp (F)t

Burner Orifice Diameter (in, ..,drill size)**

Natural Gas -- Std

Liquid Propane -- Alttt

HJE.113...33

HJF,113..,33

195

HJH,113-.33

HJK,113-.33

HJM .102,,.38

HJN.102-.38

HJE,089.,.43

HJF,089..,43

HJH,089.,.43

HJK,089-.43

HJM .082,.,45

HJN ,082,,.45

195

HJD.113...33

HJE .113...33

HJF.129-.30

HJG .113...33

HJH.113...33

HJK.129...30

HJL.102...38

HJM ,102,..38

HJN.116...32

HJD.089...43

HJE .089...43

HJF.104...37

HJG .089...45

HJH .089...45

HJK.102...38

HJL.082-.45

HJM .082.,.45

HJN.094...42

HJD/EIF/GIH/K/LIM/NO06

195

HJD.113.-33

HJE .113.-33

HJF.129-.30

HJG .113...33

HJH .113...33

HJK.129.-30

HJL.102.-38

HJM .102...38

HJN.116-.32

HJD.089.-43

HJE .089...43

HJF.104...37

HJG .089...43

HJH .089...43

HJK.104.-37

HJL.082-.45

HJM.082...45

HJN .094.,.42

HJD/E/F007

195

HJD,113-,33

HJE ,113-.33

HJF,129.-30

HJD .089_.43

HJE ,089-.43

HJF.104.-37

Thermostat Heat Anticipator Setting (amps)

208/230/460/575 v

First Stage

Second Stage

Gas Input (Btuh)

First Stage/Second

Efficiency (Steady State) (%)

Temperature

Stage

Rise Range

,14

.14

HJEll50,000/ 72,000

HJFI182,000/115,000

HJH***--/ 72,000

HJK***--/115,000

HJMTTT--/

HJNttt--/

HJE 82,8

HJF80

HJH 82

HJK 80

HJM 80.2

HJN 81

HJE 25-55

HJF 55-85

HJH 25-55

HJK 55-85

60,000

90,000

HJM 20-50

HJN 30-60

Manifold Pressure (in. wg)

Natural Gas -- Std

Liquid Propane -- Alttt

Maximum Static Pressure (in, wg)

Field Gas Connection Size (in.)

HIGH-PRESSURE SWITCH (psig)

Standard Compressor Internal Relief

Cutout

Reset (Auto.)

LOSS-OF-CHARGE SWITCH/LOW=PRESSURE

SWITCH (Liquid Line) (psig)

Cutout

Reset (Auto.)

FREEZE PROTECTION THERMOSTAT

Opens (F)

Closes (F)

OUTDOOR-AIR INLET SCREENS

RETURN-AIR FILTERS

Quantity...Size

(in.)

LEGEND

Bhp-Brake Horsepower

3.5

3.5

1.0

1/2

*Single phase/three phase.

tlndicates automatic reset.

**60,000 and 72,000 Btuh heat input units have 2 burners.

90,000 and

120,000 Btuh heat input units have 3 burners.

115,000 Btuh heat input units and 150,000 Btuh Heat input units have 3 burners.

ttAn LP kit is available as an accessory.

Kit may be used at elevations as high as 2000 ft. If an LP kit is used with Low NOx units, the Low NOx baffle must be removed and the units will no longer be classified as Low N©x units.

.14

.14

HJDll 50,000/ 72,000

HJEII 82,000/115,000

HJFl1120,000/150,000

HJG***--/ 72,000

HJH*** --/115,000

HJK*** --/150,000

HJLttt

HJMttt--/

HJNttt

--/ 60,000

90,000

--/120,000

HJD 82.8

HJE 81

HJF 80.4

HJG 82

HJH 81

HJK 80

HJL 80.2

HJM 81

HJN 80.7

HJD 25-25

HJE 35-65

HJF 50-80

HJG 25-55

HJH 35-85

HJK 50-80

HJL 20-50

HJM 30-60

HJN 40-70

3.5

3.5

1.0

Cleanable.

2._16x25x2

450 _+50

428

32O

7_+3

22 _+5

30_+5

45_+5

.14

.14

HJDII 50,000/ 72,000

HJEII 82,000/115,000

HJFI1120,000/150,000

HJG***--/ 72,000

HJH*** --/115,000

HJK*** --/150,000

HJLttt--/ 60,000

HJMftt--/ 90,000

HJNttt --/120,000

HJD 82.8

HJE 81

HJF 80.4

HJG 82

HJH 81

HJK 80

HJL 80.2

HJM 81

HJN 80.7

HJD 25-55

HJE 35-65

HJF 50-80

HJG 25-55

HJH 35-65

HJK 50-80

RJL 20-50

HJM 30-60

HJN 40-70

3.5

3.5

1.0

l&

Screen quantity and size varies with option selected.

Throwaway

I

HJD

.14

.14

50,000/ 72,000

HJE 82,000/115,000

HJF 120,000/150,000

HJD 82

HJE 81

HJF 80

HJD 25-55

HJE 35-65

HJF 50-80

3.5

3.5

1.0

1/2

4_.16x

16x2

IIThree-phase standard models have heating inputs as shown.

Singlephase standard models have one-stage heating with heating input values as follows:

HJD005-006,HJE004 -- 72,000 Btuh

HJE005-006,HJF004-

HJF005-006-

115,000 Btuh

150,000 Btuh

***California compliant three-phase models.

tttCalifornia SCAQMD compliant low NOx models have combustion products that are controlled to 40 nanegrams per joule or less.

BLK _ BLK

YEL

1

BLK _

I

,,

I;%F'i'

TO COMP

208/230-1-60

(SIZES 48HJ004-006)

EQUIP

GND i

F--t_I

1

PI ELD POWER SUPPLY

_ .L .L L __

7

PER NEC

L* ....

J

FIELD POWERSUPPLY

_ .L.L .L --

208/230-3-60460-3-60 _F-DISCONNEcT 7

(SIZES 48HJ004, 005) L..

PERNEC ,{

[;%

575-3-60

(SIZES 48HJ004, 005)

I

I

I

FIELD POWERSUPPLY r -- a-.L

L--7

_ DISCONNECT I

L .....

PER NEC J

TO COMP

208/230-3-50

460-3-80

(SIZES 48HJ006, 007)

FIELD POWER SUPPLY

_ ,.L_ .L --

,r-D ISCONNECT 7

:

BLK ---_J

I

TO TB2 BLK _ TO COMP i ' !

I ii

,

I

I®®1

575-3-50

(SIZES48HJ006, 007)

1

I

FIELD POWER SUPPLY

_I.LL__

[-DI SCONNECT 7

L PE?NEC

j

LEGEND

C -Contactor

COMP -Compressor

EQUIP -Equipment

GND -Ground

IFC

NEC

TB

-Indoor (Evaporator)

Fan Contactor

-National Electrical Code

-Terminal Block

Fig. 10 -- Power Wiring Connections

COOL STAGE 1

FAN

HEAT STAGE 1

COOL STAGE 2

HEAT STAGE 2

24 VAC HOT

Y/Y2

O/W2

R

]

f-

• I

F__J m

R

G

Y1

Y2

W1

W2

C

IPD/X

WIRE

CONNECTIONS

TO

LOW-VOLTAGE

SECTION

24 VAC COM

N/A

OUTDOOR

SENSOR

AIR $1

$2

4

THERMOSTAT

ON

A B

DIPSWITCH

C D

SETTINGS

LEGEND

Field Wiring

NOTE: Underlined letter indicates active thermostat output when configured for A/C operation.

Fig. 11A -- Low-Voltage Connections With or

Without Economizer or Two-Position Damper

CONTROL

CONNECTION

BOARD

THERMOSTAT CONTROL

CONNECTION

BOARD

{_ RMTOCC

CMPSAFE1

T_i

!_

*_1_'-

{£_i '_

_YY11/_

{:_)

(Wl_, SFS 4

NOT USED i

,

= /'W2_

\ /

(W2}

7 G \

\ /

( %?x

{:::_}

Fig. 11 B -- Low Voltage Connections

(Units with PremierLink

TM

Controls)

RACEWAY LOW VOLTAGE

CONNECTIONS

INTEGRATED

CONTROLLER

GAS UNIT

(IGC)

10

HOLE IN END PANEL (HIDDEN)

Fig. 12Field Control Wiring Raceway

Table 2A -- Electrical Data -- Standard Motor Units Without Electrical Convenience Outlet

UNIT

48HJ

OO4

(3 Tons)

005

(4 Tons)

006

(5 Tons)

0O7

(6 Tons)

NOMINAL VOLTAGE

(V-Ph-Hz)

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

187

414

518

187

187

414

518

187

414

518

VOLTAGE

RANGE

Min

187

Max

254

187

414

518

187

254

508

632

284

254

508

632

254

284

508

632

254

508

632

Qty

COMPRESSOR

(each)

RLA

16.0

LRA

88.0

1

10.3

8.1

4.2

23.7

77.0

39.0

31.0

126.0

1

1

1

13.5

6.4

6.4

28.8

17.3

9.0

7.1

20.5

9.6

7.7

93.0

46.5

40.0

169.0

123.0

62.0

50.0

186.0

75.0

56.0

1.5

0.8

0.8

1.4

0.7

0.4

0.4

1.5

0.6

0.6

OFM

(each)

FLA

0.7

0.7

0.4

0.4

0.7

5.8

2.6

2.6

5.8

4.9

2.2

2.2

8.8

2.6

2.6

IFM

FLA

4.9

4.9

2.2

2.2

4.9

COMBUSTION

FAN MOTOR

FLA

.60

.60

.30

.30

.60

.60

.30

.30

.60

.60

.30

.30

.60

.30

.30

POWER SUPPLY*

MCA

25.6/25.6

18.5/18.5

9.0

7.3

35.2/35.2

22.5/22.8

10.6

10.1

46.3/46.3

28.9/28.9

14.7

11.6

32.8/32.8

15.2

12.2

20

60/60

38/35

20

20

40/40

20

20

MOCP**

30/30

25/25

20

20

45/45

30/30

20

22/22

10

10

45/45

28/28

14

12

32/32

15

12

MINIMUM UNIT

DISCONNECT SIZEt

FLA

25/25

LRA

101/101

18/18

9

7

34/34

90/90

46

37

139/139

106/106

54

46

216/216

168/168

84

68

200/200

97

74

UNIT

48HJ

004

(3 Tons)

005

(4 Tons)

006

(5 Tons)

007

(6 Tons)

NOMINAL VOLTAGE

(V-Ph-Hz)

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-1-60

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

LEGEND

FLA -Full Load Amps

HACR -Heating, Air Conditioning and

Refrigeration

IFM

LRA

-Indoor (Evaporator) Fan Motor

-Locked Rotor Amps

MCA -Minimum Circuit Amps

MOCP -Maximum Overcurrent Protection

NEC -National Electrical Code

OFM

RLA

UL

-Outdoor (Condenser) Fan Motor

-Rated Load Amps

-Underwriters' Laboratories

187

414

518

187

187

414

518

187

414

518

VOLTAGE

RANGE

Min

187

Max

254

187

414

818

187

254

508

632

284

254

508

632

284

254

508

632

284

508

632

Qty

COMPRESSOR

(each)

RLA

16.0

LRA

88.0

1

1

1

1

10.3

5.1

4.2

23.7

13.5

6.4

6.4

28.8

17.3

9.0

7.1

20.5

9.6

7.7

77.0

39.0

31.0

126.0

*The values listed in this table do not include power exhaust.

See table at right for power exhaust requirements.

tUsed to determine minimum disconnect per NEC.

**Fuse or HACR circuit breaker.

NOTES:

1.

In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker.

The UL,

Canada units may be fuse or circuit breaker.

2.

Electrical data based on 95 F ambient outdoor-air temperature _+10% voltage.

3, Unbalanced 3-Phase Supply Voltage

Never operate a motor where pbase imbalance in supply voltage is greater than 2%. Use the following formula to determine the pereent voltage imbalance.

% Voltage Imbalance

= 100 x max voltage deviation from average voltage average voltage

Example: Supply voltage is 460-3-60.

93.0

46.5

40.0

169.0

123.0

62.0

50.0

156.0

75.0

56.0

_)

A B C

Table 2B -- Electrical Data -- Standard Motor Units With Electrical Convenience Outlet

AB = 452 V

BC = 464 v

Average Voltage =

AC = 455 v

452 + 464 + 455

3

1371

= 457

3

1.5

0.8

0.8

1.4

0.7

0.4

0.4

1.5

0.6

0.6

OFM

(each)

FLA

0.7

0.7

0.4

0.4

0.7

5.8

2.6

2.6

8.8

4.9

2.2

2.2

8.8

2.6

2.6

IFM

FLA

4.9

4.9

2.2

2.2

4.9

COMBUSTION

FAN MOTOR

FLA

.60

.60

.30

.30

.60

.60

.30

.30

.60

.60

.30

.30

.60

.30

.30

POWER SUPPLY

WITH OUTLET*

MCA

31.6/31.6

MOCP**

38/38

24.5/24.5

11.7

9.5

41.2/41.2

30/30

20

20

50/80

28.8/28.5

13.3

12.2

52.3/52.3

34.9/34.9

17.4

13.8

38.8/38.8

17.9

14.3

35/35

20

20

60/60

40/40

20

20

45/45

20

20

27/27

13

12

50/50

34/34

17

13

37/37

17

14

MINIMUM UNIT

DISCONNECT SIZEt

FLA LRA

30/30 106/106

24/24

11

9

39/39

98/98

48

38

144/144

111/111

56

47

221/221

173/173

87

70

205/205

99

75

Determine maximum deviation from average voltage.

(AB) 457 - 482 = 5 v

(BC) 464 - 487 = 7 v

(AC) 487 -488 = 2 v

Maximum deviation is 7 v.

Determine percent of voltage imbalance.

7

% Voltage Imbalance = 100x

= 1.83%

This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.

I MPORTANT: If the supply voltage phase imbalance is more than I

POWER EXHAUST ELECTRICAL DATA

POWER EXHAUST

PART NO.

CRPWREXH021A01

CRPWREXH022A01

CRPWREXH023A01

CRPWREXH028A01

CRPWREXH029A01

CRPWREXH030A01

MCA

(230 v)

N/A

3.3

N/A

1.7

N/A

1.6

MCA

(460 v)

0.9

N/A

1.8

N/A

1.0

N/A

MCA

(575 v)

N/A

1.32

N/A

0.68

N/A

0.64

MOCP

(for separate power source)

15

15

15

15

15

15

N/A -Not available

NOTE: If a single power source is to be used, size wire to include power exhaust MCA and M©CR

Check MCA and MOCP when power exhaust is powered through the unit.

Determine the new MCA including the power exhaust using the following formula:

MCA New = MCA unit only + MCA of Power Exhaust

For example, using a 48HJD006---5 unit with MCA = 28.9 and MOCP = 35.

with CRPWREXH030A01 power exhaust.

MCA New = 28.9 amps + 1.6 amps = 30.5 amps

If the new MCA does not exceed the published MOCE then M©CP would net change.

The MOCP in this example is 35 amps and the MCA New is below

35; therefore the MOCP is acceptable.

If "MCA New" is larger than the published MOCE raise the MOCP to the next larger size. For separate power, the

MOCP for the power exhaust will be 15 amps per NEC.

I

))

UNIT

48HJ

O04

005

006

007

Table 20 -- Electrical Data -- High-Static Motor Units Without Electrical Convenience Outlet

NOMINAL

VOLTAGE

(V-Ph-Hz)

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

875-3-60

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

VOLTAGE

RANGE

Min

187

414

518

187

414

818

187

414

518

187

414

518

Max

284

508

632

254

508

632

254

508

632

254

508

632

Qty

1

1

1

1

COMPRESSOR

(each)

RLA

10.3

5.1

4.2

13.5

6.4

6.4

17.3

9.0

7.1

20.5

9.6

7.7

LRA

77.0

39.0

31.0

93.0

46.5

40.0

123.0

62.0

50.0

156.0

75.0

56.0

OFM

(each)

FLA

0.7

0.4

0.4

0.7

0.4

0.4

1.5

0.8

0.8

1.4

0.6

0.6

IFM

FLA

5.8

2.6

2.6

5.8

2.6

2.6

7.5

3.4

3.4

7.5

3.4

3.4

COMBUSTION

FAN MOTOR

RLA

0.6

0.3

0.3

0.6

0.3

0.3

0.6

0.3

0.3

0.6

0.3

0.3

POWER SUPPLY*

MCA

19.4

9.4

7.7

23.4

11.0

10.4

30.6

15.5

12.2

34.8

16

12.8

MOCP**

28

20

20

30

20

20

35

20

20

40

20

20

10

30

15

12

34

16

13

MINIMUM UNIT

DISCONNECT

SIZEt

FLA

19

LRA

120

23

11

9

8

60

48

136

68

57

187

94

76

219

107

81

*The values listed in this table do not include power exhaust.

See table at right for power exhaust requirements.

l-Used to determine minimum disconnect per NEC.

**Fuse or HACR circuit breaker.

NOTES:

1.

In compliance with NEC requirements for multimotor and combination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker.

The UL.

Canada units may be fuse or circuit breaker.

2.

Electrical data based on 95 F ambient outdoor-air temperature _+10% voltage.

3.

Unbalanced 3-Phase Supply Voltage

Never operate a motor where phase imbalance in supply voltage is greater than 2%.

Use the following formula to determine the pement voltage imbalance.

% Voltage Imbalance

= 100 x max voltage deviation from average voltage average voltage

Example: Supply voltage is 460-3-60.

(_

A B c

Table 2D -- Electrical Data -- High-Static Motor Units With Electrical Convenience Outlet

UNIT

48HJ

004

005

006

007

NOMINAL

VOLTAGE

(V-Ph-Hz)

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

208/230-3-60

460-3-60

575-3-60

VOLTAGE

RANGE

Min

187

414

518

187

414

518

187

414

518

187

414

518

254

508

632

254

508

632

Max

254

508

632

254

508

632

LEGEND

FLA -Full Load Amps

HACR -Heating, Air Conditioning and

Refrigeration

IFM

LRA

-Indoor (Evaporator) Fan Motor

-Locked Rotor Amps

MOCP -Maximum Overcurrent Protection

NEC -National Electrical Code

OFM

RLA

UL

-Outdoor (Condenser) Fan Motor

-Rated Load Amps

-Underwriters' Laboratories

AB = 452 v

BC = 464 v

Qty

1

1

1

1

COMPRESSOR

(each)

17.3

9.0

7.1

20.5

9.6

7.7

RLA

10.3

5.1

4.2

13.8

6.4

6.4

LRA

77.0

39.0

31.0

93.0

46.5

40.0

123.0

62.0

50.0

156.0

75.0

56.0

C @

Average Voltage =

AC = 455 v

452 + 464 + 458

3

1371

3

= 457

Determine maximum deviation from average voltage.

(AB) 457 - 482 = 8 v

(BC) 464 - 457 = 7 v

(AC) 487 - 488 = 2 v

I1__

,w_,la

OFM

(each)

1.5

0.8

0.8

1.4

0.6

0.6

FLA

0.7

0.4

0.4

0.7

0.4

0.4

IFM

FLA

5.8

2.6

2.6

5.8

2.6

2.6

7.5

3.4

3.4

7.5

3.4

3.4

COMBUSTION

FAN MOTOR

0.6

0.3

0.3

0.6

0.3

0.3

RLA

0.6

0.3

0.3

0.6

0.3

0.3

POWER SUPPLY*

MCA

28.4

12.1

9.8

29.4

13.7

12.6

36.6

18.2

14.4

40.5

18.7

15.0

40

20

20

45

25

20

MOCP**

30

20

20

35

20

20

36

18

14

39

18

15

MINIMUM UNIT

DISCONNECT

SIZEt

FLA LRA

28

12

124

63

10

29

13

12

50

140

70

59

192

96

77

224

109

83

Maximum deviation is 7 v.

Determine percent of voltage imbalance.

7

% Voltage Imbalance = 100 x 4_

= 1.53%

This amount of phase imbalance is satisfactory as it is below the maximum allowable 2%.

I MPORTANT: If the supply voltage phase imbalance is more than I

POWER EXHAUST ELECTRICAL DATA

POWER EXHAUST

PART NO,

CRPWREXH021A01

CRPWREXH022A01

CRPWREXH023A01

CRPWREXH028A01

CRPWREXH029A01

CRPWREXH030A01

MCA

N/A

3.3

N/A

1.7

N/A

1.8

MCA

(230 v) (460 v) (875 v)

0.9

N/A

1.8

N/A

1.0

N/A

MCA

N/A

1.32

N/A

0.88

N/A

0.84

MOCP

(for separate power source)

15

15

15

15

15

15

N/A -- Not available

NOTE: If a single power source is to be used, size wire to include power exhaust MCA and MOCR

Check MCA and MOCP when power exhaust is powered through the unit.

Determine the new MCA including the power exhaust using the following formula:

MCA New = MCA unit only + MCA of Power Exhaust

For example, using a 48HJD006---5 unit with MCA = 28.9 and MOCP = 38, with CRPWREXH030A01 power exhaust.

MCA New = 28.9 amps + 1.6 amps = 30.5 amps

If the new MCA does not exceed the published MOCE then MOCP would not change.

The M©CP in this example is 35 amps and the MCA New is below

35; therefore the M©CP is acceptable.

If "MCA New" is larger than the published MOCP, raise the MOCP to the next larger size. For separate power, the

MOCP for the power exhaust will be 15 amps per NEC.

I

)2

Step 8 -Adjust Factory-Installed Options

COBRA

TM

ENERGY RECOVERY UNITS -- Please lefer to the supplement provided for information on installing and operating the factory optional COBRA Energy Recovery

Units. These units are equipped with a factou-installed energy recove U unit and have different installation and operation procedums than the stan&u'd unit.

HUMIDI-MIZER

TM

ADAPTIVE DEHUMIDIFICATION

SYSTEM--Humidi-MiZer system operation can be controlled by field installation of a Carrie>approved humidistat

(Fig. 13).

NOTE: A light commercial Thermidistat

TM device (Fig. 14) can be used instead of the humidistat if desimdi The Thermidistat device includes a thermostat and a humidistat. The humidistat is norm',flly used in applications where a temperature sensor is already provided (units with PremierLink

TM control).

To install the humidistat:

1. Route humidistat cable through hole provided in unit comer post.

2. Feed wires through the raceway built into the corner post to the 24-v bamer located on the left side of the control

box. See Fig. 12. The raceway provides the UL-mquimd clemance between high-voltage and low-voltage wiring.

3. Use a wire nut to connect humidistat cable into lowvoltage wiring as shown in Fig. 15.

To install Thermidistat device:

1. Route Thermidistat cable through hole provided in unit corner post.

2. Feed the wires through the raceway built into the corner post to the 24-v barrier located on the left side of the control box. See Fig. 12. The raceway provides the UL-required clearance between high and low voltage wiring.

3. A field-supplied relay must be installed between the thermidistat and the Humidi-Mizer circuit (recommended relay: HN612KK324).

See Fig. 16. The relay coil is connected between the DEHUM output and C (common) of the unit. The relay controls the

Humidi-MiZer solenoid valve and must be wired between the Humidi-MiZer fuse and the low-pressure switch.

Refer to the installation instructions included with the Carrier Light Commercial Thermidistat device for more information.

MANUAL OUTDOOR-AIR DAMPER -- The outdoor-air hood and screen me attached to the basepan at the bottom of the unit for shipping.

Assemb122:

1. Determine quantity of ventilation required for building.

Record amount for use in Step 8.

2. Remove and save outdoor air opening panel and screws.

See Fig. 17.

Fig. 13Accessory Field-Installed Humidistat

Fig. 14 -- Light Commercial Thermidistat Device

3. Remove evaporator coil access panel. Separate hood and screen from basepan by removing the 4 screws securing them. Save all screws.

4. Replace ewtporator coil access panel.

5. Place hood on front of outdoor air opening panel. See

Fig. 18 for hood details. Secure top of hood with the

4 screws removed in Step 3. See Fig. 19.

6. Remove and save 6 screws (3 on each side) from sides of the manual outdoo>air &_mpel:

7. Align screw holes on hood with screw holes on side of manual outdoo>air dampel: See Fig. 18 and 19. Secure hood with 6 screws from Step 6.

8. Adjust minimum position setting of the damper blade by adjusting the manual outdoo>air adjustment screws on the fiont of the dmnper blade. See Fig. 17. Slide blade vertically until it is in the appropriate position determined

by Fig. 20. Tighten screws.

9. Remove and save screws cunently on sides of hood.

Insert screen. Secure screen to hood using the screws. See

Fig. 19.

13

•_1_"

BLK

_TRAN

L ILO

P NK

IIR1

3.2

AHPS

_REO I

BRN

BIU

CRI

PNK LSV]

BLK _BLK

I--.Z.J

"I

BRN--_

CB

CR

DHR

DSV

HR

LPS

LSV

LTLO

-Circuit Breaker

-Cooling Relay

-Dehumidify Relay

-Discharge Solenoid Valve

-Heater Relay

-Low Pressure Switch

-Liquid Solenoid Valve

-Low Temperature Lockout

LEGEND O

Field Splice

Term,ha, (_-n:]: ke d_LPN<'_

Splice

Factory Wiring

Field Control

Wiring

Field Power Wiring

1 _LPS1

_ OR2

_

/ i,_ BL U,_

LPS2

6"E_BLU'_O_BLUJ

I

BLU_ I'm

_'_

__ _

0RN "_3L p DSV2

0R";

..T--BRN-*,

TB

I_:x_--

Fig. 15Typical Humidi-MiZer

TM

Adaptive Dehumidification System

Humidistat Wiring (208/230-V Unit Shown)

LCT

ROOFTOPUNIT

//7---

......

TSTATWIRES

LEGEND

CB -Circuit Breaker

LCT i Light Commercial Thermidistat

TM

Device

LLSV i Liquid Line Solenoid Valve

LTLO i Low Temperature Lockout

EE]-

R1

PINK

HUMIDI-MIZER

Fig. 16Typical Rooftop Unit with Humidi-Mizer

Adaptive Dehumidification System with Thermidistat Device

SYSTEM

_RE_D_ 24V

PINK_ . FROM

HUMIDI-MIZER

LLSV

SYSTEM

OUTDOOR

AIR OPENING

PANEL

3 SCREWS

(SIDE) _

MANUAL

OUTDOOR-AtR

ADJUSTMENT

SCREWS

_/

POSITION SE_ING

SCALE

DAMPER

BLADE

Fig. 17 -- Damper Panel with Manual Outdoor-Air

Damper Installed

HOOD TOP SCREWS

(HIDDEN) _

SCREWS

(SCREEN HOLDERS)

HOOD SIDES AND TOP-

ASSEMBLED

HOOD

SIDE

Fig. 18 -- Outdoor-Air Hood Details

14

SCREW

HOLES

(TOP)

HOOD_

SCREEN

LOCATIOK

(SCREEN

NOT SHOWN)

Fig. 19 -- Outdoor-Air Damper with

Hood Attached

0.6

0.5

_" 0,4

UI o3

03

LU m 0.3

13.

LU

>

Z

0.2

o o 1 2 3 4 5

OUTDOOR AIRFLOW (cfm x 100)

6 7

Fig. 20 -- Outdoor-Air Damper Position Setting

CONVENIENCE OUTLET -An optiomfl convenience outlet provides power for rooftop use. For maintenance personnel safety, the convenience outlet power is off when the unit disconnect is off. Adjacent unit outlets may be used for service tool s.

NOVAR CONTROLS -- Optiomd Novar controls (ETM

3051 ) me available for replacement or new construction jobs.

PREMIERLIN K

TM

CONTROL -- The PremierLink controller is compatible with Carrier Comfort Network® (CCN) devices. This control is designed to tdlow users the access and ability to change factory-defined settings, thus expanding the function of file standmd unit control board. Carder's diagnostic standard tier display tools such as Navigato( r_'_ or Scrolling

Marquee can be used wifli the PremierLink controllec

The PremierLink controller (see Fig. 21A and 21B) requires the use of a Carrier electronic thermostat or a CCN connection for time broadcast to initiate its internal timeclock.

This is necessmy for broadcast of time of &ty functions (occupied/ unoccupied).

No sensors are supplied with the field-mounted

PremierLink control.

The factory-installed PremierLink con-

trol includes only the supply-air temperature (SAT) sensor and file outdoor air temperature (OAT) sensor as stan&lrd.

An

indoor air quality (CO2) sensor can be added as an option.

Refer to Table 3 for sensor usage.

Refer to Fig.

22 for

PremierLink controller wiring.

The PremierLink control may be mounted in the control panel or tin mea below the control panel.

NOTE: PremierLink controller versions 1.3 and later are shipped in Sensor mode.

If used with a thermostat, the PremierLink controller must be configured to Thermostat mode.

Insttfll file Supply Air Temperature (SAT) Sensor -When the unit is supplied with a factory-mounted PremierLink control, the supply-air temperature (SAT) sensor (33ZCSENSAT) is factory-supplied and wired.

The wiring is routed from the

PremierLink control over the control box, flirough a grommet,

into the fan section, down along the back side of the fan, and along the fan deck over to the supply-air opening.

The SAT probe is wire-tied to file supply-air opening (on the horizontal opening end) in its shipping position.

Remove the sensor for installation. Re-position the sensor in the flange of file supply-air opening or in the supply air duct (as required by local codes). Drill or punch a l/2-in, hole in the flange or duct.

Use two field-supplied, self-drilling screws to secure the sensor probe in a horizontal orientation.

NOTE: The sensor must be mounted in the dischmge airstream downstream of the cooling coil and any heating devices.

Be sure the probe tip does not come in contact with tiny of the unit or heat surfaces.

Outdoor Air Temperature (OAT) Sensor -When the unit is supplied with a factoly-mounted PremierLink control, the outdoor-air temperature (OAT) sensor is factory-supplied and wired.

Install the Indoor Air Quality (COe) Sensor -Mount the optional indoor air quality (CO2) sensor according to manufacturer specifications.

A separate field-supplied transformer must be used to power the CO2 sensoc

Wire the CO2 sensor to the COM and IAQI terminals of J5 on the PremierLink controllec Refer to the PremierLink Installation, Start-up, and Configuration Instructions for detailed wiring and configuration information.

Enthalpy Sensors and Control -The enthalpy control

(HH57AC077) is supplied as a field-installed accessory to be used with the EconoMiSer2 damper control option.

The outdoor air enthalpy sensor is part of the enthalpy control.

The septu'ate field-installed accessory return air enthalpy sensor

(HH57AC078) is required for differentkd enthalpy control.

NOTE: The enthalpy control must be set to the "D" setting for differential enthalpy control to work properly.

The enthtdpy control receives the indoor and return enthalpy from the outdoor and return air enthtdpy sensors and provides a @ contact switch input to the PremierLink controllec Locate the controller in place of an existing economizer controller or near the actuatoc The mounting plate may not be needed if existing bracket is used.

A closed contact indicates that outside air is preferred to the return aic An open contact indicates that the economizer should remain tit minimum position.

15

Table 3PremierLink

TM

Sensor Usage

APPLICATION

Differential Dry Bulb

Temperature

PremierLink* with

(PremierLink requires 4-20 mA

Actuator)

Single Enthalpy with

PremierLink*

(PremierLink requires 4-20 mA

Actuator)

Differential Enthalpy with PremierLink*

(PremierLink requires 4-20 mA

Actuator)

OUTDOOR AIR

TEMPERATURE

Included

CRTEMPSN001A00

Included

Not Used

Included

Not Used

SENSOR

--

--

--

RETURN

TEMPERATURE

Required

33ZCT55SPT

-or Equivalent

--

--

AIR

SENSOR

OUTDOOR

ENTHALPY

--

Required

Required

HH57AC077

-or Equivalent

AIR

SENSOR orHH57AC077Equivalent

*PremierLink control requires Supply Air Temperature sensor 33ZCSENSAT

Outdoor Air Temperature sensor CRTEMPSN001A00 field-supplied and field-installed with field-installed

-Included

PremierLink and with factory-installed control.

NOTES:

1. CO2 Sensors (Optional):

33ZCSENCO2

33ZCASPCO2

33ZCT55CO2

33ZCT56CO2

PremierLink control;

-Room sensor (adjustable).

Aspirator box is required for duct mounting of the sensor.

-Aspirator box used for duct-mounted CO2 room sensor.

-Space temperature

-Space temperature and CO2 room sensor with override.

and CO2 room sensor with override and set point.

2. All units include the following Standard Sensors:

Outdoor-Air Sensor -50HJ540569 -Opens at 67 F, closes at 52 F, not adjustable.

Mixed-Air Sensor -HH97AZ001 -(PremierLink control requires Supply Air Temperature sensor 33ZCSENSAT and Outdoor Air Temperature Sensor CRTEMPSN001A00)

Compressor Lockout Sensor -50HJ540570 -Opens at 35 F, closes at 50 E

--

RETURN AIR

ENTHALPY SENSOR

--

--

Required --

HH57AC078 or Equivalent

HVAC SENSOR INPUTS

0

SL

0 (

DUAL MODE SENSOR/STAT

REMOTE OCCUPANCY

COMP SAFETY (Y1) ._

FIRE SHUTDOWN (Y2) Z

SUPPLY FAN STATUS (Wl)

NOT USED

ENTHALPY STATUS (ENTk

CCN/LEN

PORT

/

NAVIGATOR

PORT

4-20MA

ECONOMIZER

,/ t "4 "-4 "-..

INDOOR COMPR HEAT EXHAUST

FAN MOTOR 1 & 2 LOW/HIGH RVSVALVE

OUTPUTS

Fig. 21A -- PremierLink Controller

16

PREMIERLINK

CONTROL

HINGED

DOOR

PANEL

PREMIERLINK

COVER

Fig. 21B -- PremierLink

TM

Controller (Installed)

©©

::::::::Q

[

:

OUTD_R

ENTHALPY

AiR

SENSOR

Economi$er2

4 - 20mA

0 0 _" i ' GRAY

[

: • i RED ,

BLK

' i

[

CCN

Comm

7F"

\L_

_

WHT

8_[)

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

RETURN AIR

ENTHALPY

SENSOR

LEGEND

COMMS -Communications

OAT

PWR

--

--

Outdoor Air Temperature

Power

Sensor

RTU

SAT

TB

-Rooftop Unit

-Supply Air Temperature Sensor

-Terminal Block

Fig. 22 -- Typical PremierLink Controls Wiring

]7

6(]t G w_

'_(][j

",C

8 _-lhX

\ /

RTU Terminal

Board

Outdoor Air Enthalpy Sensor/Enthalpy Controller

(HH57AC077) -To wire the outdoor tfir enthalpy sensor.

perform the following (see Fig. 23 and 24):

NOTE: The outdoor air sensor can be removed from the back of the enth_dpy controller and mounted remotely.

1. Use a 4-conductor.

18 or 20 AWG cable to connect the enthalpy control to the PremierLink controller and power tmnsformec

2.

Connect the following 4 wires from the wire hmness located in rooftop unit to the enthalpy controller: a.

Connect the BRN wire to the 24 vac terminal (TRI) on enthalpy control and to pin 1 on 12-pin harness.

b.

Connect the RED wire to the 24 vac GND terminal

(TR) on enth_dpy sensor and to pin 4 on 12-pin hmness.

c.

Connect the GRAY/ORN wire to J4-2 on Premier-

Link controller and to terminal (3) on enthalpy sensoc d.

Connect the GRAY/RED wire to J4-1 on Premier-

Link controller and to terminal (2) on enthalpy sensoc

NOTE: [f installing in a Carrier rooftop, use the two gray wires provided from the control section to the economizer to connect

PremierLink controller to terminals 2 and 3 on enth_dpy sensoc

Return Air Enthalpy Sensor -- Mount the return-air enthalpy sensor (HH57AC078) in the return-air duct.

The return air sensor is wired to the enth_dpy controller (HH57AC077).

The outdoor enth_dpy changeover set point is set at the controller.

To wire the return air enthalpy sensor perform the following (see Fig. 23):

1. Use a 2-conductor, 18 or 20 AWG. twisted pair cable to connect the return air enthalpy sensor to the enthalpy controller.

2.

At the enthalpy control remove the factory-installed resistor from the (SR) and (+) termimds.

3.

Connect the field-supplied RED wire to (+) spade connector on the return air enthalpy sensor and the (SR+) terminal on the enth_dpy controllel: Connect the BLK wire to (S) spade connector on the return air enthalpy sensor and the (SR) terminal on the enthalpy controller

OPTIONAL ECONOM[$ER IV AND ECONOM[$ER2 --

See Fig.

25 for EconoMiSer IV component locations.

See

Fig. 26 for EconoMiSer2 component locations.

NOTE: These instructions are for installing the optiomd

EconoMiSer IV and EconoMi$er2 only. Refer to the accessory

EconoMiSer IV or EconoMiSer2 inst_dlation instructions when field installing an EconoMiSer [V or EconoMi$er2 accessory.

1. To remove the existing unit filter access panel, rgfise the panel and swing the bottom outwmd.

The panel is now disengaged from the track and can be removed.

See

Fig. 27.

2.

The box with the economizer hood components is shipped in the compartment behind the economizer The

EconoMiSer IV controller is mounted on top of the

EconoMiSer [V in the position shown in Fig. 25. The optiomd EconoMiSer2 with 4 to 20 mA actuator signal control does not include the EconoMi$er IV controllec

To remove the component box from its shipping position, remove the screw holding the hood box bracket to the top of the economizec Slide the hood box out of the unit. See

Fig. 28.

HH57AC077

ENTHALPY

CONTROL AND

OUTDOOR AIR

ENTHALPYSENSOR

HH57AC078 ENTHALPY

SENSOR (USED WITH

ENTHALPY CONTROL

FOR DIFFERENTIAL

ENTHALPY OPERATION)

MOUNTING PLATE

Fig. 24 -- Differential Enthalpy Control,

Sensor and Mounting Plate (33AMKITENT006)

HARNESS

........

ACTUATOR _

OUTSIDE AIR

AI /

/ LOWAMO,ENT

g ,_ Y / SENSOR

_r,_ ,_= / x_ 0 _ -/

Fig. 25 -EconoMi$er IV Component Locations

OUTDOOR

AIR HOOD

LED

BLK

RED r_ t (OUTDOORAIR

SENSOR)

SRCq+D-

---q

' FIs (RETURNAIRI

FI + ENTHALPY

-SENSOR

GRAY/ORN

GRAY/RED

,,.WIRE HARNESS jIN

UNIT

NOTES:

1. Remove factory-installed jumper across SR and + before connecting wires from return air sensor.

2. Switches shown in high outdoor air enthalpy state.

Terminals 2 and 3 close on low outdoor air enthalpy relative to indoor air enthalpy.

3. Remove sensor mounted on back of control and locate in outdoor airstream.

Fig. 23 -Outdoor and Return Air Sensor Wiring

Connections for Differential Enthalpy Control

18

ECONOMI$ER2_

PWO

HOOD

BRACKET

/

BAROMETRIC

RELIEF

DAMPER

GEAR DRIVEN

DAMPER

Fig. 26 -- EconoMi$er2 Component Locations

FILTER ACCESS PANEL

SIDE

PANEL

Fig. 27-

_COMPRESSOR

ACCESS PANEL

OUTDOOR-AIR

INDOOR COIL

OPENING

ACCESS

AND

PANEL

Typical Access Panel Locations

INDOOR

COIL

ACCESS

PANEL

N

",

"',

TOP

SIDE

PANEL

INDOOR

COIL

PANEL

Fig. 29 -- Indoor Coil Access Panel Relocation i I

1 I

/

I

I

I

I

11 ii i I i I

II

0

Fig. 28Hood Box Removal

HOOD BOX

BRACKET

TOP

PANEL

INDOOR

ACCESS

COIL

PANEL

LEFT

SIDE installed on the unit, the hood shipped with the unit will not be used and must be discarded.

Save the aluminum filter

I IMPORTANT: If the power exhaust accessory is to be for use in the power exhaust hood assembly.

3.

The indoor coil access panel will be used as the top of the hood. Remove the screws along the sides and bottom of the indoor coil access panel. See Fig. 29.

4.

Swing out indoor coil access panel and insert the hood sides under the panel (hood top). Use the sclews provided to attach the hood sides to the hood top. Use screws provided to attach the hood sides to the unit. See Fig. 30.

5.

Remove the shipping tape holding the economizer barometric relief &_mper in place.

6.

Insert the hood divider between the hood sides.

See

Fig. 30 and 31. Secure hood divider with 2 screws on each hood side. The hood divider is also used as the bottom tilter rock for file aluminum filter.

7.

Open the tilter clips which are located underneath the hood top. Insert the aluminum tilter into the bottom tilter rack (hood divider).

Push the tilter into position past the open filter clips. Close the filter clips to lock the tilter into place. See Fig. 31.

8.

Caulk the ends of the joint between the unit top panel and the hood top. See Fig. 29.

9.

Replace the filter access panel.

10.

Install all EconoMi$er IV accessories.

EconoMi$er IV wiring is shown in Fig. 32. EconoMi$er2 wiring is shown in Fig. 33.

Barometric flow capacity is shown in Fig. 34. Outdoor air leakage is shown in Fig. 35. Return air pressure drop is shown in Fig. 36.

19

Fig. 30 --

BAROMETRIC

RELIEF

HOOD DIVIDER

Outdoor-Air

17 1/4"

Hood

ALUMINUM

FI_ER

Construction

Fig. 31 -- Filter Installation

HOOD

FILTER

CLIP

/

FOR OCCUPANCY CONTROL

REPLACE JUMPER WITH

FIELD-SUPPLIED TIME CLOCK

8LK

ECONO_I ZZR MOTOR

(F]ELD

ACCESSORY)

REMOTE MI_

POSiI[O_ POT

PL6-R

FOR STD

UNIT

IAO SEICSOR

FIELD ]ICSTALLED _ _

OAr TEMPI

E_T_AL_Y DE_SOR

/FIELD ACCESDORYI

RAT/ENrHAIPY SE_DOR

LEGEND

DCV-Demand Controlled Ventilation

IAQ -Indoor Air Quality

LA -Low Ambient Lockout Device

OAT-Outdoor-Air Temperature

POT-Potentiometer

RAT-Return-Air Temperature

--GRyJ

(R0f USED}

TAN

FIELD SPLICE

BLU

FIELD

BRN

SPLICE,

GRY

ORG

IROT gSEOl

5_

9_

(_of USED} !_

2_

3_

E

4<

TO PWR EXHAUST

ACCESSORY

Potentiometer Defaults Settings:

Power Exhaust Middle

Minimum Pos.

DCV Max.

DCV Set

Fully Closed

Middle

Middle

Enthalpy C Setting

NOTES:

1. 620 ohm, 1 watt 5% resistor should be removed only when using differential enthalpy or dry bulb.

2. If a separate field-supplied 24 v transformer is used for the IAQ sensor power supply, it cannot have the secondary of the transformer grounded.

3. For field-installed remote minimum position POT, remove black wire jumper between P and P1 and set control minimum position POT to the minimum position.

Fig. 32 -- EconoMi$er IV Wiring

NOTE 1

J

NOTE3

50HJ540573

ACTUATOR

ASSEMBLY

J

'_RUN o

500 OHM _[_>1

RESISTOR?

f

I

I

- e--I_

I

-{III-I ....

I

I

OPTIONAL CO2

SENSOR 4 - 20 mA

OUTPUT

J

T

I i

I

I

I

VIOLET

PINK

s

W

>-

BLACK

RED

WHITE

7

1

8

6

10

11

9

12

5

2

4

3

DIRECT DRIVE

ACTUATOR

ECONOMIZER2 PLUG

NOTES:

1. Switch on actuator must be in run position for economizer to operate,

2.

PremierLink

TM control requires that the standard 50HJ540569 outside-air sensor be replaced by either the CROASENR001A00 enthalpy sensor.

3.

50HJ540573 actuator consists of the 50HJ540567 actuator and a harness with 500-ohm resistor, dry bulb sensor or HH57A077

Fig. 33 -- EconoMi$er2 with 4 to 20 mA Control Wiring

20

2500

W z 2000 w 1500

I f

0

Z

W m o

1000

500

0.05

0] 15

STATIC PRESSURE (in. wg)

0.25

Fig. 34 -- Barometric Flow Capacity

"5

30

LU hz_ 25 cc 20

LU

D_

I-15

LU

LU

EL 10

Ca

D

© z

5

0 q

LL

0.13

0.20

0.22

0.25

0.30

STATIC PRESSURE

0.35

0.40

(in. wg)

0.45

0.50

Fig. 35 -- Outdoor-Air Damper Leakage

6ooe w

D

Z

500_ w w

L

© m 400_ w

3000

2000

Z

L

S

100_

0

0.05

0.10

0.15

0.20

STATIC PRESSURE

0.25

(in. wg)

0.30

Fig. 36 -- Return-Air Pressure Drop

0.35

ECONOMI$ER IV STANDARD SENSORS

Outdoor Air Temperature (OAT) Sensor -The outdoor air temperature sensor (HH57AC074) is a 10 to 20 mA device used to measure the outdoor-air temperature.

The outdoor-air temperature is used to determine when the EconoMiSer IV can be used for free cooling.

The sensor is factory-installed on the

EconoMiSer IV in the outdoor airstream.

See Fig. 25. The operating range of temperature measurement is 40 to 100 E

Supply Air Temperature (SAT) Sensor -The supply air temperature sensor is a 3 K themristor located at the inlet of the indoor fan. See Fig. 37. This sensor is factory installed. The operating range of temperature measurement is 0 ° to 158 E See

Table 4 for sensor temperature/resistance v_dues.

The temperature sensor looks like an eyelet terminal with wires running to it. The sensor is located in the "crimp end" and is sealed fi_m moisture.

Outdoor Air Lockout Sensor -The EconomiSer IV is equipped with an mnbient temperature lockout switch located in the outdoor air stream which is used to lockout the compressors below a 42 F ambient temperature.

See Fig. 25.

21

SUPPLY AIR

TEMPERATURE

SENSOR

MOUNTING

LOCATION

SUPPLY AIR

TEMPERATURE

SENSOR v

Fig. 37 -- Supply Air Sensor Location

Table 4 -- Supply Air Sensor Temperature/

Resistance Values

TEMPERATURE (F)

-58

-40

-22

-4

14

32

50

68

212

230

248

257

158

176

185

194

77

86

104

122

140

266

284

302

RESISTANCE (ohms)

200,250

100,680

53,010

29,091

16,590

9,795

5,970

3,747

3,000

2,416

1,597

1,080

746

525

376

321

274

203

153

116

102

89

70

55

ECONOMISER IV CONTROL MODES

IMPORTANT: include a controllel:

The optional EconoMiSer2

The EconoMiSer2 is operated does not by a 4 to

20 mA signN from an existing

(such as PremierLink information.

TM control).

field-supplied

See Fig.

33 controller for wiring

Determine fl3e EconoMiSer IV control mode before set up of the control. Some modes of operation may require different sensors. Refer to Table 5. The EconoMiSer IV is supplied from the factory with a supply air temperature sensor and an outdoor air temperature sensol: This allows for operation of the

EconoMiSer IV with outdoor air dry bulb changeover control.

Additional accessories can be added to allow for diffelent types of changeover control and operation of the EconoMiSer IV and unit.

Outdoor DLy Bulb Changeover -The standard controller is shipped from the facto q configured for outdoor dlT bulb changeover control. The outdoor air and supply air temperature sensors tue included as stan&ud.

For this control mode, the

temperature selected If theoutdoor-air thesetpoint,theEconoMiSer tominimum

IV will adjusttheoutside below

If theoutdoor-air thesetpoint,theposition ometer toprovide inthismode, oftheoutdoor outdoor theLEDnexttofilefreecooling temperature bythefreecooling setpointis

Fig.38.Thescale

located onthepotentiometer

B,C,andD. SeeFig.39fortheconesponding

isA, temperature

Differential Dry Bulb Control -For differential dry bulb control the standard outdoor dry bulb sensor is used in conjunction with an additional accessory dry bulb sensor (part number

CRTEMPSN002A00).

Tile accessory sensor must be mounted in the return ailstream.

See Fig. 40. Wiring is provided in the

EconoMiSer IV wiring harness. See Fig. 32.

In this mode of operation, the outdoor-air temperatme is compared to the return-air temperature and the lower temperature airsheam is used for cooling.

When using this mode of changeover control, turn the enthalpy setpoint potentiometer fully clockwise to the D setting. See Fig. 38.

Table 5 -- EconoMi$er IV Sensor Usage

APPLICATION

Outdoor Air

Dry Bulb

Differential

Dry Bulb

Single Enthalpy

ECONOMI$ER IV WITH OUTDOOR AIR

DRY BULB SENSOR

Accessories

None. The outdoor is factory

Required air dry bulb sensor installed.

CRTEMPSN002A00*

Differential

Enthalpy

HH57AC078

HH57AC078 and

CRENTDIF004A00*

CO2 for DCV

Control using a

Wall-Mounted

CO2 Sensor

CO2 for DCV

Control using a

Duct-Mounted

CO2 Sensor and

33ZCSENCO2

I_ I

CRCBDIOX005A00tt

*CRENTDIF004A00 and CRTEMPSN002A00 accessories are used on many different base units.

As such, these kits may contain parts that will not be needed for installation.

t33ZCSENCO2

**33ZCASPCO2 is an accessory CO2 sensor.

is mounted applications.

an accessory aspirator ttCRCBDiOX005A00 and 33ZCASPCO2 box required for ductis an accessory that contains both 33ZCSENCO2 accessories.

EXHAUST

FAN SET POINT

LED LIGHTS

WHEN EXHAUST

CONTACT IS MADE

MINIMUM DAMPER

POSITION SETTING

MAXIMUM DAMPER _

DEMAND CONTROL

VENTILATION SET POINT

LED LIGHTS WHEN_

DEMAND CONTROL

VENTILATION INPUT

ISABOVE SET POINT

DEMAND CONTROL

VENTILATION SET POINT

LED LIGHTS WHEN

OUTDOOR AIR IS

SUITABLE FOR

CHANGEOVER

ENTHALPY

SET POINT

Fig. 38 -EconoMiSer IV Controller Potentiometer and LED Locations

19

,, i [

17

16- _

15

-LED OF[

LED ON

_LED ON

13

12

11

10

9

4O 46 5O

_m.

55 60 65 70 75

DEGREES FAHRENHEIT

80

LED ON-- --

85

LED OFF "%

I

90 95 100

Fig. 39 -- Outside Air Temperature

Changeover Set Points

_

ECONOMI$ER ]_

CONTROLLER

ECONOMI$ER

/

7

_ GROMMET

I

I

,

I

_f_-

SENSOR

RETURNAIR

RETURN DUCT

(FIELD-PROVIDED)

Fig. 40 -- Return Air Temperature or Enthalpy

Sensor Mounting Location

Outdoor Enthalpy Changeover -For enthalpy control, accessory enthalpy sensor (p_u-t number HH57AC078) is required. Replace the standard outdoor @ bulb temperature sensor with file accessory enthalpy sensor in the same mounting location.

See Fig.

25. When the outdoor air enthalpy rises above the outdoor enthalpy changeover set point, the outdoorair damper moves to its minimum position.

Tile outdoor enthalpy changeover set point is set with the outdoor enth_dpy set point potentiometer on file EconoMiSer IV controllel: The set points are A, B, C, and D. See Fig. 41. The factory-installed

620-ohln jumper must be in place across terrainals SR and SR+ on file EconoMiSer IV controllel: See Fig. 25 and 42.

Differential Enthalpy Control -For differential enthalpy control, the EconoMiSer IV controller uses two enthalpy sensors (HH57AC078 and CRENTDIF004A00), one in the outside air and one in the return air duct.

The EconoMiSer IV controller compmes file outdoor air enthalpy to the return air enthalpy to determine EconoMi$er IV use.

Tile controller selects the lower enthalpy air (return or outdoor) for cooling.

For example, when file outdoor air has a lower enthalpy than the return air. the EconoMi$er IV opens to bring in outdoor air for free cooling.

Replace the standard outside air dry bulb temperature sensor with file accessory enthalpy sensor in the same mounting location.

See Fig. 25. Mount the return air enthalpy sensor in the return air duct.

See Fig. 40. Wiring is provided in the

EconoMiSer IV wiring harness.

See Fig. 32. The outdoor enthalpy changeover set point is set with the outdoor enthalpy set point potentiometer on the EconoMiSer IV controllel: When

22

of changeover fullyclockwise

Indoor Air Quality (IAQ) Sensor Input -The IAQ input can be used for demand control ventilation control based on the level of CO2 measured in the space or return air duct.

Mount the accessory IAQ sensor according to manufacturer specifications.

The IAQ sensor should be wired to the AQ and

AQI terminals of file controller Adjust the DCV potentiometers to correspond to the DCV voltage output of file indoor air quality sensor at the user-determined set point. See Fig. 43.

If a separate field-supplied transformer is used to power the

IAQ sensor, the sensor must not be grounded or the

EconoMi$er IV control board will be damaged.

85 90 95 100 105 110

(29) (32) (35) (38) (41) (43)

CONTROL CONTROL POINT

CURVE APPROXI°F(°C)

AT 50% RH

A

B

73123)

70121)

C

D

67119 )

63(17)

\

\

\

\

\

35

(2)

40

(4)

45

(7)

50 55 60 65 70

(10) (13) (16) (18) (21)

75 80 85 90 95 100

\

105 110

(24) (27) (29) (32) (35) (38) (41) (43)

APPROXIMATE DRY BULB TEMPERATURE-°F (°C)

Fig. 41 -Enthalpy Changeover Set Points

HIGH LIMIT

CURVE

TRIP-1 T_

Vac

HO

......

COM

Vac

@

2

5

4

EF_ EF1

Fig. 42 -EconoMi$er IV Control

CO 2 SENSOR MAX RANGE SETTING

6000

5000 z

2 4000

+800

+900 ppm ppm

3000

Z

2000

W z

<

1000

+1100

_1000 o

2 3 4 5 6 7 8

DAMPER VOLTAGE FOR MAX VENTILATION RATE

Fig. 43

-CO2

Sensor Maximum Range Setting ppm ppm

23

Exhaust Set Point Adjustment -The exhaust set point will determine when the exhaust fan runs based on dmnper position

(if accessory power exhaust is installed). The set point is modified with the Exhaust Fan Set Point (EXH SET) potentiometer

See Fig. 38. The set point represents the damper position above which the exhaust fans will be turned on. When there is a call for exhaust, the EconoMiSer IV controller provides a 45 _+15 second delay before exhaust fan activation to allow the dampers to open. This delay _fllows file damper to reach the appropriate position to avoid unnecessary fan overload.

Minimum Position Control -There is a minimum damper position potentiometer on the EconoMiSer [V controllel: See

Fig. 38. The minimum damper position maintains the minimum airflow into the building during the occupied period.

When using demand ventihttion, the minimum dmnper position represents the minimum ventilation position for VOC

(volatile organic compound) ventilation requirements.

The maximum demand ventilation position is used for fully occupied ventilation.

When demand ventilation control is not being used, the minimum position potentiometer should be used to set the occupied ventilation position.

The maximum demand ventilation position should be turned fully clockwise.

Adjust the minimum position potentiometer to allow the minimum mnount of outdoor aik as required by local codes, to enter the building.

Make minimum position adjustments with at least 10 F temperature difference between the outdoor and return-air temperatures.

To determine the minimum position setting, perform the following procedure:

1. Calculate the appropriate mixed air temperature using the following formula:

OA

(To x l---ff_ ) + (TR x _

RA

= TM

To = Outdoor-Air Temperature

OA = Percent of Outdoor Air

TR = Return-Air Temperature

RA = Percent of Return Air

TM = Mixed-Air Temperature

As an example, if local codes require 10% outdoor air during occupied conditions, outdoor-air temperature is

60 E and return-air temperature is 75 E

(60 x .10) + (75 x .90) =73.5

F

2.

Disconnect the supply air sensor from terminals T and

TI.

3.

Ensure that the factory-installed jumper is in place across terminals P and PI. If remote damper positioning is being used, make sure that the terminals are wired according to

Fig. 32 and that the minimum position potentiometer is turned fully clockwise.

4.

Connect 24 vac across terminals TR and TRI.

5.

Carelhlly adjust the minimum position potentiometer until the measured supply air temperature matches the calculated value.

6.

Reconnect the supply air sensor to termimfls T and TI.

Remote control of the EconoMiSer IV damper is desirable when requiring additiomfl tempormy ventilation.

If a field-supplied remote potentiometer (Honeywell part number

$963B1128) is wired to the EconoMiSer IV controllek the minimum position of the damper can be controlled from a remote location.

To control the minimum damper position remotely, remove the factory-installed jumper on the P and PI terminals on the

EconoMiSer IV controllel: Wire the field-supplied potentiometer to the P and PI terminals on the EconoMi$er IV controller.

See Fig. 42.

24

Damper Movement -- Damper movement trom full open to full closed (or vice versa) takes 2112minutes.

Thermostats -- The EconoMi$er IV control works with conventiomd thermostats that have a YI (cool stage 1), Y2 (cool stage 2), Wl (heat stage 1), W2 (heat stage 2), and G (fan). The

EconoMi$er IV control does not support space temperature sensors. Connections are made at the thermostat termimd connection board located in the main control box.

Occupancy Control -- The facto U default configuration for the EconoMi$er IV control is occupied mode. Occupied status is provided by the black jumper fiom terminal TR to terminal

N. When unoccupied mode is desired, install a field-supplied time clock function in place of the jumper between TR and N.

See Fig. 32. When the time clock contacts me closed, the

EconoMi$er IV control will be in occupied mode. When the time clock contacts are open (removing the 24-v signal from terminal N), the EconoMi$er IV will be in unoccupied mode.

Demand Controlled Ventilation (DCV) -- When using the

EconoMi$er IV for demand controlled ventilation, them are some equipment selection criteria which should be considered.

When selecting the heat capacity and cool capacity of the equipment, the maximum ventilation rote must be evaluated for design conditions. The maximum damper position must be calculated to provide the desired fresh air

Typically the maximum ventilation rate will be about 5 to

10% more than the typical cfin required per person, using normal outside air design criteria.

A proportional anticipatory strategy should be taken with the following conditions: a zone with a large area, varied occupancy, and equipment that cannot exceed the required ventilation rate at design conditions. Exceeding the required ventilation rate means the equipment can condition air at a maximum ventilation rate that is greater than the required ventilation rate for maximum occupancy. A proportional-anticipato U strategy will cause the fresh air supplied to increase as the room CO2 level increases even though the CO2 set point has not been reached. By the time the CO2 level roaches the set point, the damper will be at maximum ventilation and should maintain the set point.

In order to have the CO2 sensor control the economizer damper in this manner, fil.'stdetermine the damper voltage output for minimum or base ventilation. Base ventilation is the ventilation required to remove contmninants during unoccupied periods. The following equation may be used to determine the percent of outside-air entering the building for a given damper position. For best results there should be at least a

10 degree difference in outside and return-air temperatures.

OA

(To x l---ff_-) + (TR x _

RA

= TM

To = Outdoor-Air Temperature

OA = Percent of Outdoor Air

TR = Return-Air Temperature

RA = Percent of Return Air

TM = Mixed-Air Temperature

Once base ventilation has been determined, set the minimum damper position potentiometer to the correct position.

The same equation can be used to deterlnine the occupied or maximum ventilation rate to the building. For example, an output of 3.6 volts to the actuator provides a base ventilation rate of 5% and an output of 6.7 volts provides the maximum ventilation rate of 20% (or base plus 15 cfm per person). Use Fig. 43 to determine the maximum setting of the CO2 sensol: For example, a 1100 ppm set point relates to a 15 cfm per person design. Use the 1100 ppm curve on Fig. 43 to find the point when the CO2 sensor output will be 6.7 volts. Line up the point on the graph with the left side of the chart to determine that the range configuration for the CO2 sensor should be 1800 ppm. The

EconoMiSer

CO2sensor isfit1100

SETTING

TheDCVsetpointmaybeleftfit2volts sincethe CO2sensorvoltagewill be ignoredby the

Oncethefullyoccupied mined, potentiometer Donotsettofilemaximum tionasfliiscanlesultinover-ventilation

C02 Sensor Configuration -The CO2 sensor has preset standard voltage settings flint can be selected anytime after the sensor is powered up. See Table 6.

Use setting 1 or 2 for Carrier equipment.

See Table 6.

1. Pless Clear and Mode buttons.

Hold fit least 5 seconds until the sensor enters the Edit mode.

2.

Pless Mode twice. The STDSET Menu will appem:

3.

Use file Up/Down button to select the pleset numbel: See

Table 6.

4.

Pless Enter to lock in the selection.

5.

Pless Mode to exit and resume normal operation.

The custom settings of the CO2 sensor can be changed anytime after the sensor is energized.

Follow the steps below to change file non-stan&trd settings:

1. Pless Clear and Mode buttons.

Hold fit least 5 seconds until the sensor enters the Edit mode.

2.

Pless Mode twice. The STDSET Menu will appem:

3.

Use the Up/Down button to toggle to the NONSTD menu and press Entec

4.

Use the Up/Down button to toggle through each of the nine variables, stinting with Altitude, until the desired setting is reached.

5.

Press Mode to move through the variables.

6.

Press Enter to lock in the selection, then press Mode to continue to the next vmiable.

Dehumidification of Fresh Air with DCV Control -Information from ASHRAE indicates that the largest humidity load on any zone is the fresh air introduced.

For some applications, a device such as a 62AQ energy recovery unit is added to reduce the moisture content of the fresh air being brought into the building when file enthalpy is high. In most cases, the normfd

EQUIPMENT

5

6

7

3

4

1

2

Interface w/Standard

Building Control System

Economizer

8 Health & Safety

9

Parking/Air Intakes/

Loading Docks

LEGEND

ppm -- Parts Per Million heating and cooling processes are morn than adequae to mmove the humidity loads for most commemial applications.

If normal rooftop heating and cooling operation is not adequate for the outdoor humidity level, fin energy recovery unit and/or a dehumidification option should be considered.

Step 9Adjust Evaporator-Fan Speed --Adjust evaporator-fan speed to meet jobsite conditions.

Tables 7 and 8 show fan rpm fit motor pulley settings.

Tables 9 and 10 show maximum amp draw of belt-di'ive motol:

Table 11 shows sound data. Refer to Tables 12-29 for performance data. See Table 30 for accessory static pressure drop.

See Fig. 44 for the Humidi-MiZer r_q system static pressure diops.

BELT-DRIVE MOTORS -Fan motor pulleys are facto q set for speed shown in Table 1. Check pulley alignment find belt tension prior to start-up.

NOTE: Befole adjusting fan speed, make sure the new fan speed will provide an air temperature rise range as shown in

Table 1.

To change fan speed:

1. Shut off unit power supply, tag disconnect.

2.

Ix_osen belt by loosening fan motor mounting nuts. See

Fig. 45.

3.

Ix_osen movable pulley flange setscrew (see Fig. 46).

4.

Screw movable flange toward fixed flange to increase speed and away from fixed flange to decrease speed.

Increasing fan speed increases load on motol: Do not exceed maximum speed specified in Table 1.

5.

Set movable flange at nearest keyway of pulley hub and tighten setscrew.

(See Table 1 for speed change for each lull turn of pulley flange.)

To align fan and motor pulleys, loosen fan pulley setscrews find slide fan pulley along fan shaft. Make angular alignment by loosening motor from mounting.

To adjust belt tension:

1. Ix_osen fan motor mounting nuts.

2.

Slide motor mounting plate away from fan scroll for proper belt tension (1/2-in. deflection wifli 8 to 10 lb of force) and tighten mounting nuts.

3.

Adjust lock bolt and nut on mounting plate to secure motor in fixed position.

Table 6

-002

Sensor Standard Settings

OUTPUT

Proportional

Proportional

Exponential

Proportional

Proportional

Exponential

Exponential

Proportional

Proportional

VENTILATION

RATE

(cfm/Peraon)

Any

Any

Any

15

20

15

2O

ANALOG

OUTPUT

0-10V

4-20 mA

2-10V

7-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

0-10V

4-20 mA

002

CONTROLRANGE

(ppm)

0-2000

0-2000

0-2000

0-1100

0900

0-1100

0900

0-9999

0-2000

OPTIONAL

RELAY SETPOINT

(ppm)

1000

1000

1100

1100

900

1100

900

5000

7OO

RELAY

HYSTERESIS

(ppm)

5O

5O

5O

5O

5O

5O

5O

5OO

5O

25

0.35

0.25 -

0.1

0.05

0

0 i

1000 i

2000 i

3000 i

4000

[

5000 6000

Fig. 44 -- Humidi-MiZer

TM

Adaptive Dehumidification System Static Pressure Drop (in. wg)

4&5ton

6 ton

3 ton

STRAIGHT EDGE MUST

WITH BELT

MOVABLE

FLANGE

MOTOR AND FAN

SHAFTS MUST BE

PARALLEL

SETSCREW£__'_

FIXED FLANGE

SINGLE-GROOVE

MOTOR MOUNTING

PLATE NUTS

Fig. 45 -- Belt-Drive Motor Mounting

Fig. 46 -- Evaporator-Fan Pulley Adjustment

Table 7 -- 48HJ Fan Rpm at Motor Pulley Setting With Standard Motor*

UNIT

48HJ

004

005

006

007

0

1044

1185

1460

1585 l&

1008

1144

1425

1538

1

971

1102

1389

1492

*Approximate fan rpm shown (standard motor/drive).

11_

935

1061

1354

1445

2

898

1019

1318

MOTOR PULLEY TURNS OPEN

2_& 3 3 l&

862 826 789

978

1283

936

1248

895

1212

1399 1352 1305 1259

4

753

853

1177

1212

4_

716

812

1141

1166

5

680

770

1106

1119

5 l&

--

--

1070

--

Table 8 -- 48HJ Fan Rpm at Motor Pulley Setting With High-Static Motor*

UNIT

48HJ

004

005

006

007

O

1455

1455

1685

1685 l&

1423

1423

1589

1589

1

1392

1392

1557

1557

1 l&

1360

1360

1525

1525

*Approximate fan rpm shown (high-static motor/drive).

2

1328

1328

1493

1493

MOTOR PULLEY TURNS OPEN

21&

1297

3

1265

3 l&

1233

1297

1460

1460

1265

1428

1428

1233

1396

1396

4

1202

1202

1364

1364

4 l&

1170

1170

1332

1332

5

1138

1138

1300

1300

5 l&

1107

1107

--

--

6

1075

1075

--

--

6

--

--

1035

--

26

UNIT

48HJ

O04

005

006

UNIT

PHASE

Single

Three

Single

Three

Single

Three

007 Three

LEGEND

Bhp i Brake Horsepower

Table 9 -- Evaporator-Fan Motor Data -- Standard Motor

MAXIMUM

CONTINUOUS

1.20

BHP*

1.20

1.20

1.20

1.30

2.40

2.40

MAXIMUM

OPERATING

1000

1000

1000

1000

1650

2120

2120

WATTS*

UNIT VOLTAGE

575

208_30

208_30

460

575

208_30

460

575

208_30

208_30

460

575

208_30

208_30

460

MAXIMUM

AMPDRAW

4.9

4.9

2.2

2.2

10.1

6.7

3.0

2.2

4.9

4.9

2.2

3.0

6.7

3.0

3.0

*Extensive motor and electrical testing on these units ensures that the full horsepower and watts range of the motors can be utilized with confidence.

Using the fan motors up to the ratings shown in this table will not result in nuisance tripping or premature motor failure.

Unit warranty will not be affected.

UNIT

48HJ

004

005

006

UNIT

PHASE

Three

Three

Three

007 Three

LEGEND

Bhp -Brake Horsepower

Table 10Evaporator-Fan Motor DataHigh-Static Motors

MAXIMUM

CONTINUOUS BHP*

2.40

2.40

2.90

2.90

MAXIMUM

OPERATING

2120

2120

2615

2615

WATTS*

UNIT VOLTAGE

208/230

460

575

208/230

460

575

208/230

460

575

208/230

460

575

MAXIMUM

AMP DRAW

6.7

3.0

3.0

6.7

3.0

3.0

8.6

3.9

3.9

8.6

3.9

3.9

*Extensive motor and electrical testing on these units ensures that the full horsepower and watts range of the motors can be utilized with confidence.

Using the fan motors up to the ratings shown in this table will not result in nuisance tripping or premature motor failure.

Unit warranty will not be affected.

Table 11 -- Outdoor Sound Power (Total Unit)

UNIT

48HJ

004,005

ARI

RATING

(decibels)

76

63

55.9

125

66.0

006,007 80

LEGEND

59.1

ARI -Air Conditioning and Refrigeration Institute

68.9

250

64.0

68.7

OCTAVE BANDS

500

66.2

71.9

1000

68.4

74.0

2000

64.5

68.9

4000

61.7

65.7

8000

57.3

59.0

GENERAL FAN PERFORMANCE NOTES

1. Values include losses for filters, unit casing, and wet coils. See Table 30 and Fig. 44 for accessory/FlOP static pressure information.

2. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence.

Using the fan motors up to the ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Tables 9 and 10 on this page for additional information.

3. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative to verify.

4. Interpolation is permissible.

Do not extrapolate.

27

AIRFLOW

CFM

900

1000

1100

1200

1300

1400

1500

Table 12 -- Fan Performance 48HJ004 -- Vertical Discharge Units; Standard Motor (Belt Drive)*

Rpm

567

599

632

666

701

737

773

0.2

Bhp

0.15

0.18

0.22

0.26

0.31

0.36

0.42

Watts

145

177

215

257

306

361

422

Rpm

688

717

747

778

810

842

875

0.4

Bhp

0.22

0.27

0.31

0.37

0.43

0.49

0.57

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

222

265

313

367

426

491

564

Rpm

786

814

842

871

901

931

963

Bhp

0.30

0.35

0.41

0.47

0.54

0.62

0.70

Watts

296

349

407

471

540

616

699

Rpm

871

897

925

952

981

1010

1040

0.8

Bhp

0.37

0.43

0.50

0.57

0.65

0.74

0.84

Watts

368

430

498

572

651

738

831

Rpm

947

972

999

1025

1053

1081

1110

1.0

Bhp

0.44

0.51

0.59

0.67

0.76

0.86

0.96

Watts

437

509

587

670

760

856

960

AIRFLOW

CFM

90O

1000

1100

1200

1300

1400

1500

Rpm

1016

1041

1066

1093

1119

1147

1175

1.2

Bhp

0.51

0.59

0.68

0.77

0.87

0.98

1.09

LEGEND

Bhp -Brake Horsepower

Watts -Input Watts to Motor

Watts

505

587

674

767

866

972

1086

Rpm

1080

1104

1129

1155

1181

1208

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

1.4

Bhp

0.57

0.67

0.76

0.87

0.98

1.09

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

572

662

759

861

970

1086

*Motor drive range: 680 to 1044 rpm. All other rpms require fieldsupplied drive.

Rpm

1139

1163

1188

1213

1239

.........

Bhp

0.64

0.74

0.85

0.96

1.08

NOTES:

Watts

637

737

843

955

1073

Rpm

1195

1219

1243

1268

1294

1.8

Bhp

0.71

0.81

0.93

1.05

1.18

Watts

702

811

925

1047

1175

Rpm

1249

1272

1296

1321

--

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 1.20.

3. See page 27 for general fan performance notes.

2.0

Bhp

0.77

0.89

1.01

1.14

--

Watts

765

883

1007

1137

--

Table 13 -- Fan Performance 48HJ004 --Vertical Discharge Units; High-Static Motor (Belt Drive)*

AIRFLOW

CFM

90O

1000

1100

1200

1300

1400

1500

Rpm

567

599

632

666

701

737

773

0.2

Bhp

0.15

0.18

0.22

0.26

0.31

0.36

0.42

Watts

145

177

215

257

306

361

422

Rpm

688

717

747

778

810

842

875

0.4

Bhp

0.22

0.27

0.31

0.37

0.43

0.49

0.57

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

222

265

313

367

426

491

564

Rpm

786

814

842

871

901

931

963

Bhp

0.30

0.35

0.41

0.47

0.54

0.62

0.70

Watts

296

349

407

471

540

616

699

Rpm

871

897

925

952

981

1010

1040

0.8

Bhp

0.37

0.43

0.50

0.57

0.65

0.74

0.84

Watts

368

430

498

572

651

738

831

Rpm

947

972

999

1025

1053

1081

1110

1.0

Bhp

0.44

0.51

0.59

0.67

0.76

0.86

0.96

Watts

437

509

587

670

760

856

960

AIRFLOW

Bhp

CFM

90O

1000

1100

1200

1300

1400

1500

Watts

--

--

Rpm

1016

1041

1066

1093

1119

1147

1175

LEGEND

1.2

Bhp

0.51

0.59

0.68

0.77

0.87

0.98

1.09

Brake Horsepower

Input Watts to Motor

Watts

505

587

674

767

866

972

1086

Rpm

1080

1104

1129

1155

1181

1208

1235

1.4

Bhp

0.57

0.67

0.76

0.87

0.98

1.09

1.22

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

572

662

759

861

970

1086

1209

Rpm

1139

1163

1188

1213

1239

1265

1292

Bhp

0.64

0.74

0.85

0.96

1.08

1.21

1.34

Watts

637

737

843

955

1073

1199

1332

Rpm

1195

1219

1243

1268

1294

1320

1346

1.8

Bhp

0.71

0.81

0.93

1.05

1.18

1.32

1.46

Watts

702

811

925

1047

1175

1310

1452

Rpm

1249

1272

1296

1321

1346

1371

1397

NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.40.

3. See page 27 for general fan performance notes.

2.0

Bhp

0.77

0.89

1.01

1.14

1.28

1.43

1.58

*Motor drive range: 1075 to 1455 rpm. All other rpms require fieldsupplied drive.

Watts

765

883

1007

1137

1275

1419

1572

28

AIRFLOW

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

Table 14 -- Fan Performance 48HJ005 -- Vertical Discharge Units; Standard Motor (Belt Drive)*

Rpm

666

701

737

773

810

847

885

923

962

0.2

Bhp

0.26

0.31

0.36

0.42

0.49

0.57

0.66

0.75

0.85

Watts

257

306

361

422

491

567

652

745

847

Rpm

778

810

842

875

909

943

978

1014

1049

0.4

Bhp

0.37

0.43

0.49

0.57

0.65

0.73

0.83

0.94

1.05

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

367

426

491

564

643

730

826

930

1043

Rpm

871

901

931

963

994

1027

1060

1093

.........

Bhp

0.47

0.54

0.62

0.70

0.79

0.89

1.00

1.11

Watts

471

540

616

699

790

888

994

1109

Rpm

952

981

1010

1040

1070

1101

1133

......

0.8

Bhp

0.57

0.65

0.74

0.84

0.94

1.05

1.16

Watts

572

651

738

831

932

1040

1157

Rpm

1025

1053

1081

1110

1140

1170

--

1.0

Bhp

0.67

0.76

0.86

0.96

1.08

1.20

--

Watts

670

760

856

960

1070

1189

--

AIRFLOW

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

Rpm

1093

1119

1147

1175

1.2

Bhp

0.77

0.87

0.98

1.09

LEGEND

Bhp -Brake Horsepower

Watts -Input Watts to Motor

Watts

767

866

972

1086

Rpm

1155

1181

1208

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

1.4

Bhp

0.87

0.98

1.09

EXTERNAL STATIC PRESSURE (in. wg)

Watts

861

970

1086

*Motor drive range: 770 to 1185 rpm. All other rpms require fieldsupplied drive.

Rpm

1213

1239

.........

1.6

Bhp

0.96

1.08

NOTES:

Watts

955

1073

Rpm

1268

1294

1.8

Bhp

1.05

1.18

Watts

1047

1175

Rpm

1321

--

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 1.20.

3. See page 27 for general fan performance notes.

2.0

Bhp

1.14

--

Watts

1137

--

AIRFLOW

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

Table 15 -- Fan Performance 48HJ005 -- Vertical Discharge Units; High-Static Motor (Belt Drive)*

Rpm

666

701

737

773

810

847

885

923

962

0.2

Bhp

0.26

0.31

0.36

0.42

0.49

0.57

0.66

0.75

0.85

Watts

257

306

361

422

491

567

652

745

847

Rpm

778

810

842

875

909

943

978

1014

1049

0.4

Bhp

0.37

0.43

0.49

0.57

0.65

0.73

0.83

0.94

1.05

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

367

426

491

564

643

730

826

930

1043

Rpm

871

901

931

963

994

1027

1060

1093

1127

Bhp

0.47

0.54

0.62

0.70

0.79

0.89

1.00

1.11

1.24

Watts

471

540

616

699

790

888

994

1109

1233

Rpm

952

981

1010

1040

1070

1101

1133

1165

1198

0.8

Bhp

0.57

0.65

0.74

0.84

0.94

1.05

1.16

1.29

1.42

Watts

572

651

738

831

932

1040

1157

1283

1417

Rpm

1025

1053

1081

1110

1140

1170

1200

1231

1263

1.0

Bhp

0.67

0.76

0.86

0.96

1.08

1.20

1.32

1.46

1.61

Watts

670

760

856

960

1070

1189

1316

1453

1598

AIRFLOW

Bhp

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

Rpm

1093

1119

1147

1175

1204

1233

1262

1293

1323

LEGEND

1.2

Bhp

0.77

0.87

0.98

1.09

1.21

1.34

1.48

1.63

1.79

-Brake Horsepower

Watts -Input Watts to Motor

Watts

767

866

972

1086

1207

1336

1473

1620

1776

Rpm

1155

1181

1208

1235

1263

1292

1321

1350

1380

1.4

Bhp

0.87

0.98

1.09

1.22

1.35

1.49

1.64

1.79

1.96

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

861

970

1086

1209

1340

1480

1627

1784

1950

Rpm

1213

1239

1265

1292

1320

1348

1376

1405

1434

Bhp

0.96

1.08

1.21

1.34

1.48

1.63

1.79

1.96

2.13

Watts

955

1073

1199

1332

1472

1622

1779

1946

2123

Rpm

1268

1294

1320

1346

1373

1401

1428

1457

1486

1.8

Bhp

1.05

1.18

1.32

1.46

1.61

1.77

1.94

2.12

2.31

Watts

1047

1175

1310

1452

1603

1762

1930

2106

2293

Rpm

1321

1346

1371

1397

1424

1451

1479

1506

--

NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.40,

3. See page 27 for general fan performance notes.

2.0

Bhp

1.14

1.28

1.43

1.58

1.74

1.91

2.09

2.28

--

*Motor drive range: 1075 to 1455 rpm. All other rpms require fieldsupplied drive.

Watts

1137

1275

1419

1572

1732

1901

2078

2265

--

29

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Rpm

848

887

927

967

1007

1048

1090

1131

1173

Table 16 -- Fan Performance 48HJ006, Single-Phase -- Vertical Discharge Units;

Standard Motor (Belt Drive)*

0.2

Bhp

0.42

0.49

0.57

0.65

0.75

0.85

0.97

1.09

1.23

Watts

371

433

502

579

663

757

859

970

1091

0.4

Rpm

968

1004

1040

1077

1115

1153

1191

1230

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

Bhp

0.55

0.63

0.71

0.81

0.91

1.03

1.15

1.29

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

486

556

633

718

811

913

1023

1143

Rpm

1069

1103

1137

1172

1208

1244

.........

.........

Bhp

0.68

0.76

0.86

0.96

1.08

1.20

Watts

600

678

763

856

957

1066

Rpm

1158

1190

1223

1257

1291

......

0.8

Bhp

0.80

0.90

1.00

1.12

1.24

Watts

715

800

892

993

1101

Rpm

1238

1269

1302

1334

--

1.0

Bhp

0.94

1.04

1.15

1.27

--

Watts

831

922

1022

1130

--

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Rpm

1312

1342

1374

1.2

Bhp

1.07

1.18

1.30

Watts

948

1047

1153

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

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

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

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

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

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

LEGEND

Bhp -Brake Horsepower

Watts -Input Watts to Motor

Rpm

1380

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

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

1.4

Bhp

1.20

EXTERNAL STATIC PRESSURE (in. wg)

Watts

1067

*Motor drive range: 1035 to 1460 rpm. All other rpms require fieldsupplied drive.

Rpm

.........

1.6

Bhp

NOTES:

Watts Rpm

1.8

Bhp Watts Rpm

1. Boldface indicates field-supplied drive is required,

2. Maximum continuous bhp is 1.30.

3. See page 27 for general fan performance notes.

2.0

Bhp Watts m m m m m m

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Rpm

848

887

927

967

1007

1048

1090

1131

1173

1215

1258

Table 17 -- Fan Performance 48HJ006, Three-Phase -- Vertical Discharge Units;

Standard Motor (Belt Drive)*

0.2

Bhp

0.42

0.49

0.57

0.65

0.75

0.85

0.97

1.09

1.23

1.38

1.54

Watts

371

433

502

579

663

757

859

970

1091

1223

1365

Rpm

968

1004

1040

1077

1115

1153

1191

1230

1269

1309

1349

0.4

Bhp

0.55

0.63

0.71

0.81

0.91

1.03

1.15

1.29

1.43

1.59

1.76

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

486

556

633

718

811

913

1023

1143

1273

1413

1564

Rpm

1069

1103

1137

1172

1208

1244

1281

1318

1355

1393

1431

Bhp

0.68

0.76

0.86

0.96

1.08

1.20

1.33

1.48

1.63

1.80

1.98

Watts

600

678

763

856

957

1066

1185

1313

1451

1600

1759

Rpm

1158

1190

1223

1257

1291

1326

1361

1397

1433

1470

1506

0.8

Bhp

0.80

0.90

1.00

1.12

1.24

1.37

1.51

1.67

1.83

2.01

2.20

Watts

715

800

892

993

1101

1219

1345

1481

1627

1784

1951

Rpm

1238

1269

1302

1334

1368

1401

1435

1470

1505

1540

--

1.0

Bhp

0.94

1.04

1.15

1.27

1.40

1.54

1.69

1.86

2.03

2.21

--

Watts

831

922

1022

1130

1246

1371

1505

1649

1803

1967

--

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Rpm

1312

1342

1374

1406

1438

1471

1504

1538

1572

1.2

Bhp

1.07

1.18

1.30

1.43

1.57

1.72

1.87

2.04

2.23

Watts

948

1047

1153

1268

1391

1523

1665

1816

1978

Rpm

1380

1411

1441

1473

1504

1536

1569

1602

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

1.4

Bhp

1.20

1.32

1.45

1.58

1.73

1.89

2.06

2.23

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

1067

1173

1286

1407

1537

1677

1825

1984

LEGEND

Bhp -Brake Horsepower

Wa_s -Input Watts to Motor

*Motor drive range: 1035 to 1460 rpm. All other rpms require fieldsupplied drive.

Rpm

1445

1474

1505

1535

1567

1598

1630

.........

Bhp

1.34

1.46

1.60

1.74

1.90

2.06

2.24

NOTES:

Watts

1189

1300

1420

1548

1685

1831

1986

1.8

Rpm

1506

1535

1565

Bhp

1.48

1.61

1.75

1595

1626

1657

......

1.90

2.06

2.24

Watts

1312

1429

1555

1690

1833

1986

Rpm

1564

1593

1622

1652

1682

--

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2,40.

3. See page 27 for general fan performance notes.

2.0

Bhp

1.62

1.76

1.91

2.06

2.23

--

Watts

1437

1560

1692

1833

1983

--

3O

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Table 18 -- Fan Performance 48HJ006 -- Vertical Discharge Units; High-Static Motor (Belt Drive)*

Rpm

848

887

927

967

1007

1048

1090

1131

1173

1215

1258

0.2

Bhp

0.42

0.49

0.57

0.65

0.75

0.85

0.97

1.09

1.23

1.38

1.54

Watts

371

433

502

579

663

757

859

970

1091

1223

1365

Rpm

968

1004

1040

1077

1115

1153

1191

1230

1269

1309

1349

0.4

Bhp

0.55

0.63

0.71

0.81

0.91

1.03

1.15

1.29

1.43

1.59

1.76

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

486

556

633

718

811

913

1023

1143

1273

1413

1564

Rpm

1069

1103

1137

1172

1208

1244

1281

1318

1355

1393

1431

Bhp

0.68

0.76

0.86

0.96

1.08

1.20

1.33

1.48

1.63

1.80

1.98

Watts

600

678

763

856

957

1066

1185

1313

1451

1600

1759

Rpm

1158

1190

1223

1257

1291

1326

1361

1397

1433

1470

1506

0.8

Bhp

0.80

0.90

1.00

1.12

1.24

1.37

1.51

1.67

1.83

2.01

2.20

Watts

715

800

892

993

1101

1219

1345

1481

1627

1784

1951

Rpm

1238

1269

1302

1334

1368

1401

1435

1470

1505

1540

1576

1.0

Bhp

0.94

1.04

1.15

1.27

1.40

1.54

1.69

1.86

2.03

2.21

2.41

Watts

831

922

1022

1130

1246

1371

1505

1649

1803

1967

2142

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Rpm

1312

1342

1374

1406

1438

1471

1504

1538

1572

1607

1642

LEGEND

1.2

Bhp

1.07

1.18

1.30

1.43

1.57

1.72

1.87

2.04

2.23

2.42

2.63

Bhp -Brake Horsepower

Watts -Input Watts to Motor

Watts

948

1047

1153

1268

1391

1523

1665

1816

1978

2150

2333

Rpm

1380

1411

1441

1473

1504

1536

1569

1602

1635

1669

1704

1.4

Bhp

1.20

1.32

1.45

1.58

1.73

1.89

2.06

2.23

2.42

2.63

2.84

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

1067

1173

1286

1407

1537

1677

1825

1984

2153

2332

2523

Rpm

1445

1474

1505

1535

1567

1598

1630

1663

1695

1729

.........

Bhp

1.34

1.46

1.60

1.74

1.90

2.06

2.24

2.42

2.62

2.83

Watts

1189

1300

1420

1548

1685

1831

1986

2152

2328

2515

Rpm

1506

1535

1565

1595

1626

1657

1688

1720

1753

......

*Motor drive range: 1300 to 1685 rpm. All other rpms require fieldsupplied drive.

1.8

Bhp

1.48

1.61

1.75

1.90

2.06

2.24

2.42

2.61

2.82

Watts

1312

1429

1555

1690

1833

1986

2149

2321

2504

Rpm

1564

1593

1622

1652

1682

1713

1744

1775

--

NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.90.

3. See page 27 for general fan performance notes.

2.0

Bhp

1.62

1.76

1.91

2.06

2.23

2.41

2.60

2.81

--

Watts

1437

1560

1692

1833

1983

2142

2312

2491

--

AIRFLOW

CFM

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

Table 19 -- Fan Performance 48HJ007 -- Vertical Discharge Units; Standard Motor (Belt Drive)*

Rpm

967

1008

1049

1091

1133

1176

1216

1261

1305

1348

1392

1435

1479

0.2

Bhp

0.63

0.72

0.82

0.93

1.05

1.18

1.32

1.47

1.63

1.80

1.99

2.19

2.40

Watts

563

643

731

827

933

1047

1170

1304

1448

1602

1768

1945

2135

0.4

Rpm

1075

1112

1151

1189

1229

1268

1308

1349

1390

1431

1472

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

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

Bhp

0.80

0.91

1.02

1.14

1.26

1.40

1.55

1.72

1.89

2.07

2.27

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

715

805

903

1008

1123

1247

1380

1523

1677

1841

2016

Rpm

1170

1205

1241

1276

1315

1352

1390

1429

1468

1507

.........

Bhp

0.97

1.08

1.20

1.33

1.47

1.62

1.78

1.96

2.14

2.33

Watts

861

960

1068

1183

1308

1441

1584

1736

1900

2073

Rpm

1255

1289

1323

1358

1393

1429

1466

1503

1540

......

0.8

Bhp

1.13

1.25

1.38

1.52

1.67

1.84

2.01

2.19

2.38

Watts

1002

1111

1228

1353

1487

1630

1782

1945

2117

Rpm

1333

1366

1399

1433

1467

1501

1537

--

--

1.0

Bhp

1.28

1.42

1.56

1.71

1.67

2.04

2.23

--

--

Watts

1139

1258

1384

1519

1662

1815

1977

--

--

AIRFLOW

CFM

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

Rpm

1406

1438

1470

1502

1535

1569

1.2

Bhp

1.43

1.58

1.73

1.89

2.06

2.25

LEGEND

Bhp -Brake Horsepower

Watts -Input Watts to Motor

Watts

1273

1401

1537

1681

1834

1996

Rpm

1475

1505

1537

1568

1600

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

1.4

Bhp

1.58

1.73

1.90

2.07

2.25

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

1403

1541

1686

1840

2002

*Motor drive range: 1119 to 1585 rpm. All other rpms require fieldsupplied drive.

Rpm

1540

1569

1600

1631

.........

Bhp

1.72

1.89

2.06

2.25

NOTES:

Watts

1531

1678

1833

1996

Rpm

1601

1630

1660

--

1.8

Bhp

1.87

2.04

2.23

Watts

1657

1813

1977

Rpm

1660

1689

1718

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.40.

3. See page 27 for general fan performance notes.

2.0

Bhp

2.00

2.19

2.38

3!

Watts

1780

1945

2118

AIRFLOW

CFM

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

Table 20 -- Fan Performance 48HJ007 -- Vertical Discharge Units; High-Static Motor (Belt Drive)*

Rpm

967

1008

1049

1091

1133

1176

1218

1261

1305

1348

1392

1435

1479

0.2

Bhp

0.63

0.72

0.82

0.93

1.05

1.18

1.32

1.47

1.63

1.80

1.99

2.19

2.40

Watts

563

643

731

827

933

1047

1170

1304

1448

1602

1768

1945

2135

Rpm

1075

1112

1151

1189

1229

1268

1308

1349

1390

1431

1472

1514

1556

0.4

Bhp

0.80

0.91

1.02

1.14

1.26

1.40

1.55

1.72

1.89

2.07

2.27

2.48

2.70

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

715

805

903

1008

1123

1247

1380

1523

1677

1841

2016

2203

2402

Rpm

1170

1205

1241

1278

1315

1352

1390

1429

1468

1507

1547

1587

.........

Bhp

0.97

1.08

1.20

1.33

1.47

1.62

1.78

1.96

2.14

2.33

2.54

2.76

Watts

861

960

1068

1183

1308

1441

1584

1736

1900

2073

2258

2455

Rpm

1255

1289

1323

1358

1393

1429

1466

1503

1540

1578

1616

......

0.8

Bhp

1.13

1.25

1.38

1.52

1.67

1.84

2.01

2.19

2.38

2.59

2.81

Watts

1002

1111

1228

1353

1487

1630

1782

1945

2117

2301

2495

Rpm

1333

1366

1399

1433

1467

1501

1537

1572

1608

1645

--

1.0

Bhp

1.28

1.42

1.56

1.71

1.87

2.04

2.23

2.42

2.62

2.84

--

Watts

1139

1258

1384

1519

1662

1815

1977

2149

2331

2524

--

AIRFLOW

CFM

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

Rpm

1406

1438

1470

1502

1535

1569

1603

1638

1673

1.2

Bhp

1.43

1.58

1.73

1.89

2.06

2.25

2.44

2.64

2.86

LEGEND

Bhp -Brake Horsepower

Watts -Input Watts to Motor

Watts

1273

1401

1537

1681

1834

1996

2167

2349

2541

Rpm

1475

1505

1537

1568

1600

1633

1666

1700

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

1.4

Bhp

1.58

1.73

1.90

2.07

2.25

2.45

2.65

2.87

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

1403

1541

1686

1840

2002

2174

2355

2546

*Motor drive range: 1300 to 1685 rpm. All other rpms require fieldsupplied drive.

Rpm

1540

1569

1600

1631

1662

1694

1727

.........

Bhp

1.72

1.89

2.06

2.25

2.44

2.64

2.86

NOTES:

Watts

1531

1678

1833

1996

2167

2348

2539

Rpm

1601

1630

1660

1690

1721

1752

......

1.8

Bhp

1.87

2.04

2.23

2.42

2.62

2.84

Watts

1657

1813

1977

2149

2330

2520

Rpm

1660

1689

1718

1747

1778

--

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.90.

3. See page 27 for general fan performance notes.

2.0

Bhp

2.00

2.19

2.38

2.59

2.80

--

Watts

1780

1945

2118

2300

2490

--

AIRFLOW

CFM

90O

1000

1100

1200

1300

1400

1500

Table 21 -- Fan Performance 48HJ004 -- Horizontal Discharge Units; Standard Motor (Belt Drive)*

Rpm

553

582

612

643

675

707

740

0.2

Bhp

0.14

0.16

0.20

0.23

0.28

0.33

0.38

Watts

134

163

196

234

277

326

382

Rpm

681

707

734

762

790

819

849

0.4

Bhp

0.22

0.26

0.30

0.34

0.40

0.45

0.52

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

221

257

297

343

394

452

515

Rpm

782

807

833

859

886

913

941

Bhp

0.32

0.36

0.41

0.46

0.52

0.58

0.66

Watts

316

358

405

458

517

581

653

Rpm

870

894

919

944

969

996

1023

0.8

Bhp

0.42

0.47

0.52

0.58

0.65

0.72

0.80

Watts

417

466

519

579

644

716

795

Rpm

948

971

995

1020

1044

1070

1096

1.0

Bhp

0.53

0.58

0.64

0.71

0.78

0.86

0.95

Watts

526

580

639

705

777

855

941

AIRFLOW

CFM

90O

1000

1100

1200

1300

1400

1500

Rpm

1019

1042

1065

1089

1113

1138

1163

1.2

Bhp

0.64

0.70

0.77

0.84

0.92

1.01

1.10

LEGEND

Bhp -Brake Horsepower

Watts -Input Watts to Motor

Watts

640

700

765

837

915

1000

1092

Rpm

1084

1107

1130

1153

1177

1201

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

1.4

Bhp

0.76

0.83

0.90

0.98

1.06

1.15

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

760

825

896

974

1058

1149

*Motor drive range: 680 to 1044 rpm. All other rpms require fieldsupplied drive.

Rpm

1146

1168

1190

1213

.........

.........

Bhp

0.89

0.96

1.04

1.12

NOTES:

Watts

885

956

1032

1115

Rpm

1203

1225

1247

......

1.8

Bhp

1.02

1.10

1.18

Watts

1016

1091

1173

Rpm

1258

--

--

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 1.20.

3. See page 27 for general fan performance notes.

2.0

Bhp

1.16

--

--

Watts

1152

--

--

32

AIRFLOW

CFM

900

1000

1100

1200

1300

1400

1500

Table 22 i Fan Performance 48HJ004 i Horizontal Discharge Units; High-Static Motor (Belt Drive)*

Rpm

553

582

612

643

675

707

740

0.2

Bhp

0.14

0.16

0.20

0.23

0.28

0.33

0.38

Watts

134

163

196

234

277

326

382

Rpm

681

707

734

762

790

819

849

0.4

Bhp

0.22

0.26

0.30

0.34

0.40

0.45

0.52

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

221

257

297

343

394

452

515

Rpm

782

807

833

859

886

913

941

Bhp

0.32

0.36

0.41

0.46

0.52

0.58

0.66

Watts

316

358

405

458

517

581

653

Rpm

870

894

919

944

969

996

1023

0.8

Bhp

0.42

0.47

0.52

0.58

0.65

0.72

0.80

Watts

417

466

519

579

644

716

795

Rpm

948

971

995

1020

1044

1070

1096

1.0

Bhp

0.53

0.58

0.64

0.71

0.78

0.86

0.95

Watts

526

580

639

705

777

855

941

AIRFLOW

Bhp

CFM

900

1000

1100

1200

1300

1400

1500

Watts

--

--

Rpm

1019

1042

1065

1089

1113

1138

1163

LEGEND

1.2

Bhp

0.64

0.70

0.77

0.84

0.92

1.01

1.10

Brake Horsepower

Input Watts to Motor

Watts

640

700

765

837

915

1000

1092

Rpm

1084

1107

1130

1153

1177

1201

1226

1.4

Bhp

0.78

0.83

0.90

0.98

1.08

1.15

1.25

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

780

825

896

974

1058

1149

1247

Rpm

1146

1168

1190

1213

1237

1261

1285

Bhp

0.89

0.96

1.04

1.12

1.21

1.31

1.41

Watts

885

958

1032

1115

1205

1303

1407

Rpm

1203

1225

1247

1270

1293

1317

1341

1.8

Bhp

1.02

1.10

1.18

1.27

1.36

1.47

1.58

Watts

1018

1091

1173

1262

1358

1461

1571

Rpm

1258

1279

1301

1324

1347

1370

1394

NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.40.

3. See page 27 for general fan performance notes.

2.0

Bhp

1.18

1.24

1.33

1.42

1.52

1.63

1.75

*Motor drive range: 1075 to 1455 rpm. All other rpms require fieldsupplied drive.

Watts

1152

1232

1319

1413

1514

1623

1740

Table 23 i Fan Performance 48HJ005 i Horizontal Discharge Units; Standard Motor (Belt Drive)*

AIRFLOW

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

Rpm

643

675

707

740

773

807

841

875

910

0.2

Bhp

0.23

0.28

0.33

0.38

0.45

0.52

0.59

0.68

0.77

Watts

234

277

326

382

444

513

589

674

767

Rpm

762

790

819

849

879

910

942

974

1006

0.4

Bhp

0.34

0.40

0.45

0.52

0.59

0.87

0.75

0.85

0.95

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

343

394

452

515

586

683

749

842

944

Rpm

859

886

913

941

970

999

1029

1059

1090

Bhp

0.48

0.52

0.58

0.66

0.73

0.82

0.91

1.02

1.13

Watts

458

517

581

653

731

817

910

1012

1122

Rpm

944

989

996

1023

1050

1078

1106

1135

......

0.8

Bhp

0.58

0.65

0.72

0.80

0.88

0.98

1.08

1.19

Watts

579

644

716

795

880

973

1074

1184

Rpm

1020

1044

1070

1096

1123

1150

--

--

1.0

Bhp

0.71

0.78

0.86

0.95

1.04

1.14

--

--

Watts

705

777

855

941

1034

1134

--

--

AIRFLOW

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

Rpm

1089

1113

1138

1163

1189

1.2

Bhp

0.84

0.92

1.01

1.10

1.20

LEGEND

Bhp -Brake Horsepower

Watts -Input Watts to Motor

Watts

837

915

1000

1092

1191

Rpm

1153

1177

1201

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

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

1.4

Bhp

0.98

1.06

1.15

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

974

1058

1149

*Motor drive range: 770 to 1185 rpm. All other rpms require fieldsupplied drive.

Rpm

1213

.........

.........

Bhp

1.12

NOTES:

Watts

1115

Rpm

......

1.8

Bhp Watts Rpm

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 1.20.

3. See page 27 for general fan performance notes.

2.0

Bhp Watts

33

AIRFLOW

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

Table 24 i Fan Performance 48HJ005 i Horizontal Discharge Units; High-Static Motor (Belt Drive)*

Rpm

643

675

707

740

773

807

841

875

910

0.2

Bhp

0.23

0.28

0.33

0.38

0.45

0.52

0.59

0.68

0.77

Watts

234

277

326

382

444

513

589

674

767

Rpm

762

790

819

849

879

910

942

974

1006

0.4

Bhp

0.34

0.40

0.45

0.52

0.59

0.67

0.75

0.85

0.95

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

343

394

452

515

586

663

749

842

944

Rpm

859

886

913

941

970

999

1029

1059

1090

Bhp

0.46

0.52

0.58

0.66

0.73

0.82

0.91

1.02

1.13

Watts

458

517

581

653

731

817

910

1012

1122

Rpm

944

969

996

1023

1050

1078

1106

1135

1185

0.8

Bhp

0.58

0.65

0.72

0.80

0.88

0.98

1.08

1.19

1.31

Watts

579

644

716

795

880

973

1074

1184

1302

Rpm

1020

1044

1070

1096

1123

1150

1177

1205

1234

1.0

Bhp

0.71

0.78

0.86

0.95

1.04

1.14

1.25

1.37

1.49

Watts

705

777

855

941

1034

1134

1242

1360

1485

AIRFLOW

Bhp

CFM

1200

1300

1400

1500

1600

1700

1800

1900

2000

Rpm

1089

1113

1138

1163

1189

1216

1242

1270

1297

LEGEND

1.2

Bhp

0.84

0.92

1.01

1.10

1.20

1.31

1.42

1.55

1.68

-Brake Horsepower

Watts -Input Watts to Motor

Watts

837

915

1000

1092

1191

1299

1414

1538

1672

Rpm

1153

1177

1201

1226

1252

1277

1303

1330

1357

1.4

Bhp

0.98

1.06

1.15

1.25

1.36

1.48

1.60

1.73

1.87

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

974

1058

1149

1247

1353

1468

1590

1721

1862

Rpm

1213

1237

1261

1285

1310

1335

1361

1387

1414

Bhp

1.12

1.21

1.31

1.41

1.53

1.65

1.78

1.92

2.07

Watts

1115

1205

1303

1407

1520

1640

1770

1908

2055

Rpm

1270

1293

1317

1341

1365

1390

1415

1441

1467

1.8

Bhp

1.27

1.36

1.47

1.58

1.70

1.83

1.96

2.11

2.26

Watts

1262

1358

1461

1571

1690

1817

1953

2098

2252

Rpm

1324

1347

1370

1394

1418

1442

1467

1493

--

NOTES:

1. Boldface indicates field-supplied drive is required,

2. Maximum continuous bhp is 2,40.

3. See page 27 for general fan performance notes.

2.0

Bhp

1.42

1.52

1.63

1.75

1.87

2.01

2.15

2.30

--

*Motor drive range: 1075 to 1455 rpm. All other rpms require fieldsupplied drive.

Watts

1413

1514

1623

1740

1865

1998

2140

2292

--

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Table 25 i Fan Performance 48HJ006, Single-Phase i Horizontal Discharge Units;

Standard Motor (Belt Drive)*

Rpm

800

839

879

919

960

1001

1043

1085

1127

0.2

Bhp

0.39

0.46

0.54

0.63

0.73

0.84

0.96

1.09

1.23

Watts

350

412

483

561

648

744

850

966

1092

0.4

Rpm

904

938

974

1010

1047

1085

1123

1162

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

Bhp

0.49

0.57

0.65

0.75

0.85

0.96

1.09

1.22

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

438

505

580

663

754

855

965

1086

Rpm

999

1030

1062

1095

1129

1163

1199

.........

Bhp

0.60

0.68

0.77

0.87

0.98

1.09

1.22

Watts

535

605

684

771

867

972

1086

Rpm

1087

1115

1144

1174

1206

1238

......

0.8

Bhp

0.72

0.80

0.90

1.00

1.11

1.23

Watts

640

714

796

886

986

1095

Rpm

1169

1195

1221

1250

1279

--

1.0

Bhp

0.85

0.93

1.03

1.14

1.25

--

Watts

753

829

914

1008

1111

--

AIRFLOW

CFM

1.2

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Rpm

1247

1270

1295

1321 m m m m m m m

LEGEND

Bhp -Brake Horsepower

Watts -Input Watts to Motor m m m m m m

Bhp

0.98

1.07

1.17

1.28

m

Watts

873

952

1040

1137

Rpm

1320

1342

.........

.........

1.4

Bhp

1.13

1.22

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

1002

1083

Rpm

1390

......

Bhp

1.28

Watts

1137

Rpm

--

1.8

Bhp

--

Watts

--

Rpm m m m m m m m m m m m

NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 1.30.

3. See page 27 for general fan performance notes.

2.0

Bhp m m m m m m m m m m m

*Motor drive range: 1035 to 1460 rpm. All other rpms require fieldsupplied drive.

Watts m m m m m m m m m m m

34

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Table 26 -- Fan Performance 48HJ006, Three-Phase -- Horizontal Discharge Units;

Standard Motor (Belt Drive)*

Rpm

800

839

879

919

960

1001

1043

1085

1127

1169

1212

0.2

Bhp

0.39

0.46

0.54

0.63

0.73

0.84

0.98

1.09

1.23

1.38

1.55

Watts

350

412

483

561

648

744

850

986

1092

1229

1378

Rpm

904

938

974

1010

1047

1085

1123

1162

1201

1241

1281

0.4

Bhp

0.49

0.57

0.65

0.75

0.85

0.98

1.09

1.22

1.37

1.53

1.70

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

438

505

580

663

754

855

985

1086

1217

1359

1513

Rpm

999

1030

1062

1095

1129

1163

1199

1235

1272

1310

1348

Bhp

0.60

0.68

0.77

0.87

0.98

1.09

1.22

1.36

1.52

1.68

1.88

Watts

535

605

684

771

887

972

1086

1211

1347

1493

1652

Rpm

1087

1115

1144

1174

1206

1238

1271

1305

1340

1375

1412

0.8

Bhp

0.72

0.80

0.90

1.00

1.11

1.23

1.37

1.51

1.67

1.84

2.02

Watts

640

714

796

886

986

1095

1213

1342

1482

1633

1796

Rpm

1169

1195

1221

1250

1279

1309

1340

1372

1405

1439

1473

1.0

Bhp

0.85

0.93

1.03

1.14

1.25

1.38

1.52

1.67

1.83

2.00

2.19

Watts

753

829

914

1008

1111

1224

1348

1479

1623

1778

1945

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Rpm

1247

1270

1295

1321

1348

1377

1406

1437

1468

1500

1533

1.2

Bhp

0.98

1.07

1.17

1.28

1.40

1.53

1.67

1.83

1.99

2.17

2.36

LEGEND

Bhp -Brake Horsepower

Watts -Input Watts to Motor

Watts

873

952

1040

1137

1243

1359

1485

1621

1769

1928

2098

Rpm

1320

1342

1365

1390

1415

1442

1470

1499

1529

1559

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

1.4

Bhp

1.13

1.22

1.32

1.43

1.58

1.69

1.83

1.99

2.16

2.35

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

1002

1083

1173

1273

1381

1500

1629

1769

1920

2083

Rpm

1390

1411

1432

1455

1479

1505

1531

1559

1587

.........

Bhp

1.28

1.37

1.48

1.59

1.72

1.86

2.00

2.16

2.34

Watts

1137

1221

1313

1415

1526

1648

1780

1923

2077

Rpm

1457

1476

1497

1518

1541

1565

1591

1617

......

*Motor drive range: 1035 to 1460 rpm. All other rpms require fieldsupplied drive.

NOTES:

1.8

Bhp

1.44

1.54

1.64

1.76

1.89

2.03

2.18

2.34

Watts

1280

1365

1459

1563

1677

1801

1936

2082

Rpm

1522

1540

1559

1579

1601

1624

1648

--

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.40,

3. See page 27 for general fan performance notes.

2.0

Bhp

1.61

1.71

1.82

1.93

2.06

2.21

2.36

--

Watts

1430

1517

1612

1718

1834

1961

2098

--

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Table 27 -- Fan Performance 48HJ006 -- Horizontal Discharge Units; High-Static Motor (Belt Drive)*

Rpm

800

839

879

919

960

1001

1043

1085

1127

1169

1212

0.2

Bhp

0.39

0.46

0.54

0.63

0.73

0.84

0.96

1.09

1.23

1.38

1.55

Watts

350

412

483

561

648

744

850

966

1092

1229

1378

Rpm

904

938

974

1010

1047

1085

1123

1162

1201

1241

1281

0.4

Bhp

0.49

0.57

0.65

0.75

0.85

0.96

1.09

1.22

1.37

1.53

1.70

EXTERNAL STATIC PRESSURE (in. wg)

0.6

Watts

438

505

580

663

754

855

965

1086

1217

1359

1513

Rpm

999

1030

1062

1095

1129

1163

1199

1235

1272

1310

1348

Bhp

0.60

0.68

0.77

0.87

0.98

1.09

1.22

1.36

1.52

1.68

1.86

Watts

535

605

684

771

867

972

1086

1211

1347

1493

1652

Rpm

1087

1115

1144

1174

1206

1238

1271

1305

1340

1375

1412

0.8

Bhp

0.72

0.80

0.90

1.00

1.11

1.23

1.37

1.51

1.67

1.84

2.02

Watts

640

714

796

886

986

1095

1213

1342

1482

1633

1798

Rpm

1169

1195

1221

1250

1279

1309

1340

1372

1405

1439

1473

1.0

Bhp

0.85

0.93

1.03

1.14

1.25

1.38

1.52

1.87

1.83

2.00

2.19

Watts

753

829

914

1008

1111

1224

1346

1479

1623

1778

1945

AIRFLOW

CFM

1500

1600

1700

1800

1900

2000

2100

2200

2300

2400

2500

Rpm

1247

1270

1295

1321

1348

1377

1406

1437

1488

1500

1533

1.2

Bhp

0.98

1.07

1.17

1.28

1.40

1.53

1.67

1.83

1.99

2.17

2.36

LEGEND

Bhp -Brake Horsepower

Watts -Input Watts to Motor

Watts

873

952

1040

1137

1243

1359

1485

1621

1769

1928

2098

Rpm

1320

1342

1365

1390

1415

1442

1470

1499

1529

1559

1591

1.4

Bhp

1.13

1.22

1.32

1.43

1.58

1.69

1.83

1.99

2.16

2.35

2.54

*Motor drive range: 1300 to 1685 rpm. All other rpms require fieldsupplied drive.

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

1002

1083

1173

1273

1381

1500

1629

1769

1920

2083

2257

Rpm

1390

1411

1432

1455

1479

1505

1531

1559

1587

1616

1647

Bhp

1.28

1.37

1.48

1.59

1.72

1.88

2.00

2.16

2.34

2.53

2.73

Watts

1137

1221

1313

1415

1528

1648

1780

1923

2077

2243

2421

Rpm

1457

1476

1497

1518

1541

1565

1591

1617

1644

1672

......

NOTES:

1.8

Bhp

1.44

1.54

1.64

1.78

1.89

2.03

2.18

2.34

2.52

2.71

Watts

1280

1365

1459

1563

1677

1801

1938

2082

2239

2408

Rpm

1522

1540

1559

1579

1601

1624

1648

1673

1699

1726

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.90.

3. See page 27 for general fan performance notes.

2.0

Bhp

1.61

1.71

1.82

1.93

2.08

2.21

2.36

2.53

2.71

2.90

35

Watts

1430

1517

1612

1718

1834

1961

2098

2246

2406

2579

Table 28 -- Fan Performance 48HJ007 -- Horizontal Discharge Units; Standard Motor (Belt Drive)* wg)

AIRFLOW

CFM

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

Rpm

913

952

992

1032

1073

1114

1155

1196

1238

1280

1322

1364

0.2

Bhp

0.64

0.73

0.84

0.95

1.07

1.21

1.36

1.51

1.69

1.87

2.07

2.28

Watts

569

652

744

844

954

1074

1204

1345

1497

1660

1835

2023

Rpm

1010

1046

1083

1120

1158

1196

1234

1273

1312

1352

1392

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

0.4

Bhp

0.80

0.91

1.02

1.14

1.27

1.41

1.57

1.73

1.91

2.10

2.31

EXTERNAL STATIC PRESSURE(in.

0,6

Watts

715

805

903

1010

1127

1254

1391

1538

1697

1867

2050

Rpm

1098

1131

1166

1200

1236

1272

1308

1348

1382

1420

.........

Bhp

0.98

1.09

1.21

1.33

1.47

1.62

1.78

1.96

2.14

2.34

Watts

869

965

1070

1184

1307

1440

1584

1738

1904

2081

Rpm

1178

1210

1242

1275

1308

1343

1377

1412

1448

......

0,8

Bhp

1.16

1.28

1.40

1.54

1.68

1.84

2.01

2.19

2.38

Watts

1032

1134

1245

1365

1495

1634

1784

1945

2117

Rpm

1252

1282

1313

1348

1377

1409

1443

--

--

1,0

Bhp

1.35

1.48

1.61

1.75

1.90

2.07

2.24

--

--

Watts

1203

1311

1427

1553

1689

1834

1990

--

--

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

AIRFLOW

CFM

1.2

Rpm

1322

1351

1380

1411

1441

1473

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

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

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

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

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

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

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

Bhp

1.56

1.68

1.82

1.97

2.13

2.30

LEGEND

Watts

1382

1495

1617

1748

1890

2041

Rpm

1388

1416

1444

1473

1503

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

1.4

Bhp

1.77

1.90

2.04

2.20

2.36

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

1568

1686

1814

1950

2097

Rpm

1451

1477

1505

.........

.........

Bhp

1.98

2.12

2.27

Watts

1762

1885

2017

Rpm

1510

1536

--

1.8

Bhp

2.21

2.35

.....

Watts

1962

2090

Rpm

--

--

2.0

Bhp

--

--

Bhp

Watts

--

--

Brake Horsepower

Input Watts to Motor

*Motor drive range: 1119 to 1585 rpm. All other rpms require field-supplied drive.

NOTES:

1. Boldface indicates field-supplied drive is required.

2. Maximum continuous bhp is 2.40.

3. See page 27 for general fan performance notes.

Table 29 -- Fan Performance 48HJ007 -- Horizontal Discharge Units; High-Static Motor (Belt Drive)*

Watts

--

--

AIRFLOW

CFM

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

Rpm

913

952

992

1032

1073

1114

1155

1196

1238

1280

1322

1364

1406

0.2

Bhp

0.64

0.73

0.84

0,95

1.07

1.21

1.36

1,51

1,69

1.87

2.07

2.28

2.50

Watts

569

652

744

844

954

1074

1204

1345

1497

1660

1835

2023

2224

Rpm

1010

1046

1083

1120

1158

1196

1234

1273

1312

1352

1392

1432

1472

0.4

Bhp

0.80

0.91

1.02

1.14

1.27

1.41

1.57

1.73

1.91

2.10

2.31

2.53

2.76

EXTERNAL STATIC PRESSURE(in.

0,6

Watts

715

805

903

1010

1127

1254

1391

1538

1697

1867

2050

2245

2452

Rpm

1098

1131

1166

1200

1236

1272

1308

1348

1382

1420

1458

1496

.........

Bhp

0.98

1.09

1,21

1,33

1.47

1.62

1.78

1.96

2.14

2.34

2.56

2.78

Watts

869

965

1070

1184

1307

1440

1584

1738

1904

2081

2270

2472 wg)

Rpm

1178

1210

1242

1275

1308

1343

1377

1412

1448

1484

1521

......

0,8

Bhp

1.16

1,28

1.40

1,54

1.68

1.84

2.01

2.19

2.38

2.59

2.81

Watts

1032

1134

1245

1365

1495

1634

1784

1945

2117

2300

2496

Rpm

1252

1282

1313

1345

1377

1409

1443

1477

1511

1546

--

1.0

Bhp

1.35

1,48

1.61

1.75

1.90

2.07

2.24

2.43

2.63

2.84

--

Watts

1203

1311

1427

1553

1689

1834

1990

2157

2335

2526

--

1800

1900

2000

2100

2200

2300

2400

2500

2600

2700

2800

2900

3000

AIRFLOW

CFM

LEGEND

Rpm

1322

1351

1380

1411

1441

1473

1505

1537

1571

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

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

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

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

1.2

Bhp

1,58

1.68

1.82

1.97

2.13

2.30

2,48

2.68

2.88

Watts

1382

1495

1617

1748

1890

2041

2203

2376

2560

Rpm

1388

1416

1444

1473

1503

1533

1564

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

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

1.4

Bhp

1.77

1,90

2.04

2.20

2.36

2.54

2.73

EXTERNAL STATIC PRESSURE (in. wg)

1.6

Watts

1568

1686

1814

1950

2097

2254

2422

Rpm

1451

1477

1505

1533

1562

1591

.........

Bhp

1.98

2,12

2.27

2.43

2.60

2.79

Watts

1762

1885

2017

2159

2311

2474

Rpm

1510

1536

1563

1590

1618

--

1.8

Bhp

2,21

2.35

2.51

2.67

2.85

.....

Watts

1962

2090

2227

2374

2532

Rpm

1568

1593

1619

--

--

2.0

Bhp

2,44

2.59

2.75

--

--

Watts

2169

2302

2443

--

--

NOTES:

1.

Boldface

2.

Maximum indicates continuous field-supplied

3.

See page 27 for general bhp is 2.90.

fan drive performance is required.

notes.

Bhp

Watts

--

--

Brake Horsepower

Input Watts to Motor

*Motor drive range: 1300 to 1685 rpm. All other rpms require field-supplied drive.

Table 30 -- Accessory/FlOP EconoMi$er IV and EconoMi$er2 Static Pressure* (in. wg)

COMPONENT

I

0.045

1250

--

1500 1750 2000 2250

Vertical EconoMi$er2 and EconoMi$er IV

Horizontal EconoMi$er2 and EconoMi$er IV

0,065

--

0.08

0.1

0.12

0.125

0.145

0.15

0.18

2750

0,22

0.225

LEGEND *The static pressure must be added to external static pressure.

The sum and the evaporator entering-air cfm should be used in conjunction with the Fan

Performance tables to determine indoor blower rpm and watts.

FlOP -Factory-Installed Option

I

0.255

36

PRE-START-UP

Failure to observe the following warnings could result in serious pel.sonal injuu:

1. Follow recognized safety practices and wear protective goggles when checking or servicing refi'igerant system.

2.

Do not operate compressor or provide any electric power to unit unless compressor terminal cover is in place and secured.

3.

Do not remove complessor terminal cover until all electrical sources +ue disconnected.

4.

Relieve all pressure from system before touching or disturbing anything inside terminal box if refiigerant leak is suspected around complessor terminals.

5.

Never attempt to repair soldered connection while refiigemnt system is under pressure.

6.

Do not use torch to remove any component.

System cont+fins oil and refiigerant under pressure.

To mauve a component, wear protective goggles and proceed as follows: a.

Shut off electrical power and then gas to unit.

b.

Recover refrigerant to relieve all pressure from system using both high-pressure and lowpressure ports.

c.

Cut component connection tubing with tubing cutter and remove component from unit.

d.

Carefully unsweat remaining tubing stubs when necessa U. Oil can ignite when exposed to torch flame.

Proceed as follows to inspect and prepare the unit for initial start-up:

1. Remove all access panels.

2.

Read and follow instructions on all WARNING, CAU-

TION, and INFORMATION labels attached to, or shipped with, unit.

3.

Make the following inspections: a.

Inspect for shipping and handling damages such as broken lines, loose parts, or disconnected wires, etc.

b.

Inspect for oil at all refrigerant tubing connections and on unit base. Detecting oil generally indicates a refrigerant leak. Leak-test all refrigerant tubing connections using electronic leak detector, halide torch, or liquid-soap solution.

c.

Inspect all field-wiring and factou-wiring connections.

Be sure that connections are completed and tight. Be sure that wires are not in contact with refiigerant tubing or sharp edges.

d.

Inspect coil tins.

If damaged during shipping and handling, carefully straighten fins with a fin comb.

4.

Verify the following conditions: a.

Make sure that condenser-fan blade are correctly positioned in fan orifice.

See Condenser-Fan

Adjustment section on page 43 for more details.

b.

Make sure that air filter(s) is in place.

c.

Make sure that condensate drain trap is filled with water to ensure proper drainage.

d.

Make sure that all tools and miscellaneous loose parts have been removed.

START-UP

Unit Preparation--Make sure that unit lms been installed in accordance with installation instructions and applicable codes.

Gas Piping

-Check gas piping for leaks.

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 fieldsupplied gas piping at pressures of

1/2 psig or less, a unit connected to such piping must be isolated by manu_dly closing the gas valve.

Return-Air Filters--Make sure correct filters am installed in unit (see Table 1). Do not operate unit without return-air filte_.s.

Outdoor-Air Inlet Screensmust be in place before operating unit.

Outdoor-air inlet screen

Compressor Mounting -- Compressorsme internally

spring mounted.

Do not loosen or remove compressor holddown bolts.

Internal Wiring-

Check all electrical connections in unit control boxes. Tighten as required.

Refrigerant Service Ports--Each

unit system has

4 Schrader-type service ports: one on the suction line, one on the liquid line, and 2 on the compressor discharge line. Be sum that caps on the ports are tight. Two additional Schmder valves

;ue located under the high-pressure and low-pressure switches, respectively.

High Flow Refrigerant Valves -- Two high flow valves

;u'e located on the hot gas tube coining out of the colnpressor and the suction tube going into the compressol: Large black plastic caps identify these valves.

These valves have O-rings inside which screw the cap onto a brass body to prevent leaks. No field access to these valves is available at this time. Ensure the plastic caps remain on the valves and are tight or the possibility of refrigerant leakage could occm:

Compressor Rotation

-On

3-phase

units with scroll compressors, it is important to be certain compressor is rotating in the proper direction.

To determine whether or not compressor is rotating in the proper direction:

1. Connect service gages to suction and disch;uge pressure fittings.

2.

Energize the compressoc

3.

The suction pressure should drop and the disch;uge pressure should rise, as is normal on any st;u't-up.

If the suction pressure does not diop and the discharge pressure does not rise to normal levels:

1. Note that the evaporator fan (size 006 and 007 only) is probably also rotating in the wrong direction.

2.

Turn off power to the unit and install lockout tag.

3.

Reverse any two of the unit power leads.

4.

Reenergize to the compressol: Check pressures.

37

anddischm'ge totheirnorm_fl

Whenthecompressor tion,fileunitwill makeanelevated thermostat unit,turnonmainpower

COOLposition supply.

andfanswitch toasetting atAUTO.position.

belowroomtemperature.

Check

43.

Resetthermostat will shutoff.Evaporator

30-second

TOSHUTOFFUNIT-- Setsystem position.

perature unitofftemporarily ceedsthermostat

protection device. Unit shuts down on any safety trip, and indicator light on thermostat comes on. Check reason for all safety trips.

Compressor restart is accomplished by manual reset at the thermostat by turning the selector switch to OFF and then to

ON position.

Main Burners

-Main burnel_ me factory set and should require no adjustment.

TO CHECK ignition of main burners and heating controls, move thermostat set point above room temperature and verify that the burners light and evaporator fan is energized.

Check heating effect, fllen lower the thermostat setting below the room temperature and verify that the burners and evaporator fan turn off.

Refer to Tables 3 IA and 31B for the correct orifice to use at high altitudes.

Table 31A -- Altitude Compensation* --

48HJ004-007 Standard Units

ELEVATION

(ft)

0-2,000

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

72,000 AND

115,000 BTUH

NOMINAL INPUT

Natural

Gas

Orifice

Sizet

33

36

36

37

38

40

41

42

43

44

45

46

47

48

Liquid

Propane

Orifice

Size]-

43

44

45

45

46

47

48

49

50

50

51

52

52

53

150,000 BTUH

NOMINAL INPUT

37

39

41

42

32

34

35

36

43

44

Natural

Gas

Orifice

Size]-

3O

31

31

32

*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.

1-Orifices available through your Carrier distributor.

45

46

47

48

42

43

43

44

49

50

Liquid

Propane

Orifice

Size]-

37

39

40

41

Table 31 B -- Altitude Compensation* --

48HJ004-006 Low NOx Units

ELEVATION

(ft)

0-2,000

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

60,000 AND

90,000 BTUH

NOMINAL INPUT

Natural

Gas

Orifice

Size]-

38

40

41

42

43

43

44

45

46

47

48

49

50

51

Liquid

Propane

Orifice

Size]-

45

47

48

49

49

50

50

51

52

52

53

53

54

54

120,000

NOMINAL

Natural

Gas

Orifice

Size

32

33

35

36

37

38

39

41

42

43

44

44

46

47

BTUH

INPUT

Liquid

Propane

Orifice

Size]-

42

43

43

47

48

49

50

44

45

45

46

51

52

52

*As the height above sea level increases, there is less oxygen per cubic foot of air. Therefore, the input rate should be reduced at higher altitudes.

1-Orifices are available through your local Carrier distributor.

Heating

1. Purge gas supply line of air by opening union ahead of the gas valve. If gas odor is detected, tighten union and wait 5 minutes before proceeding.

2.

Turn on electrical supply and manual gas valve.

3.

Set system switch selector at HEAT position and fan switch at AUTO. or ON position.

Set heating temperature lever above room temperature.

4.

The induced-draft motor will start.

5.

After a call for heating, the main burnel_ should light wifllin 5 seconds.

If the burner does not light, then fllere is a 22-second delay before anofller 5-second try. If the burner still does not light, file time delay is repeated.

If the burner does not light within 15 minutes, there is a lockout. To reset the control, break the 24 v power to WI.

6.

The evaporator-fan motor will turn on 45 seconds after burner ignition.

7.

The evaporator-fan motor will turn off in 45 seconds after the fllermostat temperature is satisfied.

8.

Adjust airflow to obtain a temperature rise within the range specified on the unit nameplate.

NOTE: The default value for the evaporator-fan motor on/off delay is 45 seconds. The Integrated Gas Unit Controller (IGC) modifies this v_flue when abnormal limit switch cycles occm:

Based upon unit operating conditions, the on delay can be reduced to 0 seconds and the off delay can be extended to

180 seconds. When one flash of the LED (light-emitting diode) is observed, the evaporator-fan on/off delay has been modified.

If the limit switch trips at the st_ut of the heating cycle during the evaporator on delay, the time period of the on delay for the next cycle will be 5 seconds less than the time at which the switch tripped.

(Example: If the limit switch trips at 30 seconds, the evaporator-fan on delay for the next cycle will occur at 25 seconds.) To prevent short-cycling, a 5-second leduction will only occur if a minimum of 10 minutes has elapsed since the last call for heating.

38

Theevaporator-fan callforheating whichthemodification ingthisperiod,

A maximum evaporator-fan

If thelimitswitch theevaporator-fan

Torestore unit.

TOSHUTOFFUNIT--Set system position.

heating turewill temponuily belowthermostat shutunitoffuntilspace setting.

Safety Relief

--A soft-solder joint at the suction service

Schmder port provides pressure relief under abnorm_fl temperature and pressure conditions.

Ventilation (Continuous Fan)-

Set fan and

system

selector switches at ON and OFF positions, lespectively.

Evaporator ftm operates continuously to provide constant air circulation.

When the evaporator-fan selector switch is turned to the OFF position, there is a 30-second delay before the fan turns off.

Operating Sequence

COOLING.

UNITS WITHOUT ECONOMIZER -When thermostat c',_ls for cooling, terminals G and YI me energized.

The indoor-fan contactor (IFC) and complessor contactor tue energized and indoor-fan motol: complessol: and outdoor fan start.

The outdoor fan motor runs continuously while unit is cooling.

HEATING.

UNITS WITHOUT ECONOMIZER --When the thermostat calls for heating, terminal WI is energized.

To prevent thermostat short-cycling, the unit is locked into the

Heating mode for at least 1 minute when WI is energized.

The induced-draft motor is energized and the burner ignition sequence begins.

The indoor (evaporator) fan motor (IFM) is energized 45 seconds after a flame is ignited. On units equipped for two stages of heat, when additiomfl heat is needed, W2 is energized and the high-fire solenoid on the main gas valve

(MGV) is energized.

When the therlnostat is satisfied and WI is deenergized, the [FM stops after a 45-second time-off dek%

COOLING.

UNITS WITH ECONOMISER IV -- When free cooling is not available, the compressoLs will be controlled by the zone thermostat.

When fiee cooling is available, the outdoor-air damper is modulated by the EconoMiSer IV control to provide a 50 to 55 F supply-air temperature into the zone. As the supply-air temperatme fluctuates above 55 or below 50 H the dampeLs will be modulated (open or close) to bring the supply-air temperatme back within the set points.

Integrated EconoMiSer IV operation on single-stage units requires a 2-stage thermostat (YI and Y2).

For EconoMiSer IV operation, there must be a thermostat call for the fan (G). This will move the damper to its minimum position during the occupied mode.

If the increase in cooling capacity causes the supply-air temperature to drop below 45 F, then the outdoor-air damper position will be fi._lly closed. If the supply-air temperature continues to frill, the outdoor-air dmnper will close. Control returns to norm_d once the supply-air temperature rises above 48 E

If optional power exhaust is inst_dled, as the outdoor-air damper opens and closes, the power exhaust fans will be energized and deenergized.

If field-installed accessory CO2 sensors are connected to the

EconoMiSer IV control, a demand controlled ventilation strategy will begin to operate. As the CO2 level in the zone increases above the CO2 set point, the minimum position of the damper will be increased proportionally.

As the CO2 level decreases because of the inoease in fresh ail: the outdoor-air damper will be proportionally closed. Damper position will follow the higher demand condition from DCV mode or free cooling mode.

Damper movement from full closed to full open (or vice versa) will take between 11/2 and 21/2 minutes.

If free cooling can be used as determined fi_m the appropriate changeover command (switch, dry bulb, enthalpy curve, differential dry bulb, or differential enthalpy), a c;dl for cooling

(YI closes at the thermostat) will cause the control to modulate the dmnpers open to maintain the supply air temperature set point at 50 to 55 E

As the supply air temperature drops below the set point range of 50 to 55 H the control will modulate the outdoor-air dampers closed to maintain the proper supply-air temperature.

HEATING.

UNITS WITH ECONOMISER IV -- When the room temperature calls for heat, the heating controls are energized as described in the Heating, Units Without Economizer section.

When the thermostat is satisfied, the economizer damper moves to the minimum position.

COOLING.

UNITS WITH ECONOMISER2, PREMIER-

LINK

TM

CONTROL AND A THERMOSTAT -- When free cooling is not available, the compressors will be controlled by the PremierLink control in response to the YI and Y2 inputs fi_m the thermostat.

The PremierLink control will use the following information to determine if free cooling is available:

• Indoor fan has been on for at least 30 seconds.

• The SPT. SAT. and OAT inputs must have valid readings.

• OAT must be less than 75 E

• OAT must be less than SPT.

• Enthalpy must be LOW (may be jumpered if an enthalpy sensor not available).

• Economizer position is NOT forced.

Pre-cooling occurs when the is no call from the thermostat except G Pre-cooling is defined as the economizer modulates to provide 70 F supply all:

When free cooling is available the PremierLink control will control the compressors and economizer to provide a supplyair temperature determined to meet the YI and Y2 calls from the thermostat using the following three routines.

The three control routines are based on OAT.

The 3 routines are based on OAT where:

SASP = Supply Air Set Point

DXCTLO = Direct Expansion Cooling Lockout Set Point

PID = Proportional Integral

Routine 1 (OAT < DXCTLO)

• YI energized economizer

(SATLOI + 3).

• Y2 energized economizer

(SATLO2 + 3).

maintains maintains

Routine 2 (DXCTLO < OAT < 68 F) a a

SASP

SASP

=

=

• If only YI energized, the economizer maintains a SASP

= (SATLOI + 3).

• If SAT > SASP + 5 and economizer position > 80%, economizer will go to minimum position for 3 minutes or until SAT > 68 E

• First stage of mechanical cooling will be energized.

• Integrator resets.

• Economizer opens again and controls to current SASP after stage one on for 90 seconds.

• With YI and Y2 energized Economizer maintains an

SASP = SATLO2 + 3.

• If SAT > SASP + 5 and economizer position >80%.

economizer will go to minimum position for 3 minutes or until SAT > 68 E

39

• If compressor one is on then second stage of mechanical cooling will be energized.

Otherwise the first stage will be energized.

• Integrator resets.

• Economizer opens again and controls to SASP after stage one on for 90 seconds.

Routine 3 (OAT > 68)

• Economizer is opened 100%.

• Compressors 1 and 2 are cycled based on YI and Y2 using minimum on and off times and watching the supply air temperature

SATLO2 set points.

as compared to SATLOI and

If optional power exhaust is installed, as the outdoor-air damper opens and closes, the power exhaust fans will be energized and deenergized.

If field-installed accessoly CO2 sensors ale connected to the

PremierLink

TM control, a PID-controlled demand ventilation strategy will begin to operate.

As the CO2 level in the zone increases above the CO2 set point, the minimum position of the dmnper will be increased proportionally.

As the CO2 level decreases because of the increase in fresh aik the outdoor-air dmnper will be proportionally closed.

HEATING, UNITS WITH ECONOMISER2, PREMIERLINK

CONTROL AND A THERMOSTAT -- When the thermostat calls for heating, terminal Wl is energized.

The PremierLink control will move the economizer damper to the minimum position if there is a call for G and closed if there is a call for WI without G In order to prevent thermostat from short cycling, the unit is locked into the heating mode for at least 10 minutes when WI is energized.

The induced-draft motor is then energized and the burner ignition sequence begins.

On units equipped for two stages of heat, when additional heat is needed, W2 is energized and the high-fire solenoid on the main gas valve (MGV) is energized.

When the thermostat

is satisfied and WI is deenergized, the IFM stops after a

45-second time-off delay unless G is still maintained.

COOLING.

UNITS WITH ECONOMI$ER2, PREMIER-

LINK CONTROL AND A ROOM SENSOR -- When free cooling is not available, the compressors will be controlled by

the PremierLink controller using a PID Error reduction calculation as indicated by Fig 47.

The PremierLink controller will use the following information to determine if fiee cooling is available:

Indoor fan has been on for at least 30 seconds.

• The SPT, SAT, and OAT inputs must have valid readings.

• OAT must be less than 75 E

• OAT must be less than SPT.

• Enthalpy must be LOW (may be jumpered if an enthalpy sensor is not available).

• Economizer position is NOT forced.

When flee cooling is available, the outdoor-air damper is positioned through the use of a Proportional Integral (PID) control process to provide a calculated supply-air temperature into the zone. The supply air will maintain the space temperature between the heating and cooling set points as indicated in Fig. 48.

The PmmierLink control will integrate the compressol.s

stages with the economizer based on similm logic as the three routines listed in the previous section.

The SASP will float up and down based on the error reduction calculations that compme space temperature and space set point.

When outside-air temperature conditions require the economizer to close for a compressor stage-up sequence, the economizer control integrator is reset to zero after the stage-up sequence is completed.

This prevents the supply-air temperature

fiom dropping too quickly and creating a fieeze condition that would make the compressor turn off prematurely.

The high space set point is used for DX (direct expansion) cooling control, while the economizer space set point is a calculated value between the heating and cooling set points.

The economizer set point will always be at least one degree below the cooling set point, allowing for a smooth transition

fi'om mechanical cooling with economizer assist, back to economizer cooling as the cooling set point is achieved.

The compressors may be used for initial cooling then the

PremierLink controller will modulate the economizer using an error reduction calculation to hold the space temperature between the heating and cooling set points. See Fig. 48.

The controller uses the following conditions to determine economizer cooling:

• Enthalpy is Low

• SAT reading is available

• OAT reading is available

• SPT reading is available

• OAT < SPT

• Economizer Position is NOT forced

If any of the above conditions are not met, the economizer submaster reference (ECSR) is set to maximum limit and the damper moves to minimum position.

The operating sequence is complete.

The ECSR is recalculated evely 30 seconds.

If an optional power exhaust is installed, as the outdoor-air damper opens and closes, the power exhaust fans will be energized and deenergized.

If field-installed accessoly CO: sensors me connected to the PremierLink

TM control, a PID-controlled demand ventilation strategy will begin to operate.

As the CO2 level in the zone increases above the CO: set point, the minimum position of the damper will be increased proportionally.

As the CO2 level decreases because of the increase in flesh aik the outdoor-air damper will be proportionally closed.

TEMPERATURE CONTROL

CO 68J

694

'_

Lu

75_

73 m_'_"71 ua 70 o

LU ; 741

TIME

TEMPERATURE

NOTE: PremierLink control performs smart staging of 2 stages of DX cooling and up to 3 stages of heat.

Fig. 47 -DX Cooling Temperature

Control Example

TEMPERATURE CONTROL

LU

££

75

£[2

LU

0.

LU p-

LU

©

O3

73

741_"

72

71 I

69

68

70Ji - .......

J

......... _ ....................................

_ // X_.,__

_ ..........................

TIME

------ COOL SETPOINT

__

---

TEMPERATURE

HEAT SETPOINT

Fig.

48 -Economizer Temperature

Control Example

4O

HEATING.

UNIT WITH ECONOMISER2, PREMIERLINK

CONTROL AND A ROOM SENSOR -- Every 40 seconds the controller will calculate the required heat stages (maximum of 3) to maintain supply-air temperature (SAT) if the following qu_flifying conditions ale met:

• Indoor fan has been on for at least 30 seconds.

• COOL mode is not active.

START or HEAT • OCCUPIED, TEMRCOMPENSATED mode is active.

• SAT reading is available.

• Fire shutdown mode is not active.

If all of the above conditions are met, the number of heat stages is c_dculated; otherwise file required number of heat stages will be set to 0.

If the PremierLink controller determines that heat stages are required, the economizer damper will be moved to minimum position if occupied and closed if unoccupied.

Staging should be as follows:

If Heating PID STAGES=2

• HEAT STAGES=I (50% capacity) will energize HSI

• HEAT STAGES=2 (100% capacity) will energize HS2

If Heating PID STAGES=3 and AUXOUT = HS3

• HEAT STAGES=I (33% capacity) will energize HSI

• HEAT STAGES=2 (66% capacity) will energize HS2

• HEAT STAGES=3 (100% capacity) will energize HS3

In order to prevent short cycling, the unit is locked into the

Heating mode for at least 10 minutes when HS 1 is deenergizedi

When HSI is energized the induced-&aft motor is then energized and the burner ignition sequence begins.

On units equipped for two stages of heat, when additional heat is needed, HS2 is energized and the high-fire solenoid on the main gas valve (MGV) is energized.

When the space condition is satisfied and HSI is deenergized file IFM stops after a 45-second time-off delay unless in the occupied mode.

The fan will mn continuously in the occupied mode as required by natiomfl energy and fresh _fir standards.

UNITS WITH HUMIDI-MIZER

TM

ADAPTIVE

MIDIFICATION SYSTEM

DEHU-

Normal Design Cooling Operation -When the rooftop operates under the normal sequence of operation, the compressors will cycle to maintain indoor conditions.

See Fig. 49.

The Humidi-MiZer a&tptive dehumidification system includes a factory-installed Motormastel@ low ambient control to keep the head and suction pressure high, allowing normal design cooling mode operation down to 0 ° E

Subcooling Mode -- When subcooling mode is initiated, this will energize (close) file liquid line solenoid valve (LLSV) forcing the hot liquid refiigemnt to enter into the subcooling coil (see Fig. 50).

As the hot liquid refrigerant passes through the subcooling/ reheat dehumidification coil, it is exposed to the cold supply airflow coming through the evaporator coil.

The liquid is runlet subcooled to a temperature approaching the evaporator leaving-air temperature.

The liquid then enters a thermostatic expansion valve (TXV) where the liquid drops to a lower pressure. The TXV does not have a pressure drop great enough to change the liquid to a 2-phase fluid, so the liquid then enters the Acutrol

TM device at the evaporator coil.

The liquid entel_ file evaporator coil at a temperature lower than in standard cooling operation.

This lower temperature increases the latent capacity of the rooftop unit. The refrigerant passes through the evaporator and is turned into a vapol: Tile air passing over the evaporator coil will become colder than during normal operation.

However.

as this same air passes over the subcooling coil, it will be slightly warmed, parti_flly reheating the air.

/

Fig. 49 -- Humidi-MiZer Normal

Design Cooling Operation

Fig. 50 -- Humidi-MiZer Subcooling

Mode Operation

Subcooling mode operates only when the outside air temperature is winmet than 40 E A factory-installed temperature switch located in the condenser section will lock out subcooling mode when the outside temperature is cooler than 40 IF.

The scroll compressors are equipped with crankcase heaters to provide protection for the compressors due to the additional refrigerant charge required by the subcoolin_reheat coil.

When in subcooling mode, there is a slight decrease in system total gross capacity (5% less), a lower gross sensible capacity (20% less), and a greatly increased latent capacity (up to 40% more).

Hot Gas Reheat Mode -When the humidity levels in the space require humidity control, a hot gas solenoid valve (specific to hot gas reheat mode only) will open to bypass a portion of hot gas lefiigerant mound the condenser coil (see Fig. 51).

This hot gas will mix with liquid refrigerant leaving file condenser coil and flow to the subcoolin_reheat dehumidification coil. Now the conditioned air coming off the evaporator will be cooled and dehumidified, but will be warmed to neutral conditions (72 F to 75 F) by the subcooling/reheat dehumidification coil.

41

Theneteffectoftherooftop toprovide whensensible ditions

Similar mode

LPS j

diminish aremoderate).

toprovide lowsensible than40E Belowthistemperature,

SeeTable tionsystem onlywhen switch a factory

32fortheHumidi-Mizer

Fig. 51 -Humidi-Mizer

TM

Hot Gas

Reheat Mode Operation

SERVICE

When servicing unit, shut off all electrical power to unit and inst',_l lockout tag to avoid shock hazard or injury from rotating parts.

Cleaning

-Inspect unit interior at the beginning of heating and cooling season and as operating conditions requile.

EVAPORATOR CO[L

1. Turn unit power off. tag disconnect.

Remove evaporator coil access panel.

2.

[f economizer or two-position dmnper is installed, remove economizer by disconnecting Molex plug and removing mounting screws.

3.

Slide filters out of unit.

4.

Clean coil using a commercial coil cleaner or dishwasher detergent in a pressurized spray canister. Wash both sides of coil and flush with clean watel: For best results, back-flush towmd return-air section to remove foreign material.

Flush condensate pan after completion.

5.

Reinst_dl economizer and filters.

6.

Reconnect wiring.

7.

Replace access panels.

CONDENSER COIL--Inspect coil monthly.

Clean condenser coil annually, and as required by location and outdoor air conditions.

One-Row Coil -Wash coil with commercial coil cleanel: It is not necessary to remove top panel.

2-Row Coils

Clean coil as follows:

1. Turn offunit powel: tag disconnect.

2.

Remove top panel screws on condenser end of unit.

3.

Remove condenser coil corner post. See Fig. 52. To hold top panel open, place coil corner post between top panel and center post. See Fig. 53.

4.

Remove screws securing coil to complessor plate and compressor access panel.

5.

Remove fastener holding coil sections together at return end of condenser coil. Carefully separate the outer coil section 3 to 4 in. from the inner coil section.

See Fig. 54.

6.

Use a water hose or other suitable equipment to flush down between the 2 coil sections to remove dirt and debris.

Clean the outer surfaces with a stiff brush in the norm_d mannel:

7.

Secure inner and outer coil rows together with a fieldsupplied fastenel:

8.

Reposition the outer coil section and remove the coil corner post fiom between the top panel and center post.

Reinstall the coil corner post and replace all screws.

CONDENSATE DRAINCheck and clean each year at start of cooling season. In wintel: protect against freeze-up.

FILTERS -- Clean or replace at start of each heating and cooling season, or more often if operating conditions require it. Replacement filters must be stone dimensions as origimd filters.

OUTDOOR-AIR INLET SCREENS -Clean screen with steam or hot water and a mild detergent.

Do not use disposable filters in place of screen.

Table 32 -- Humidi-Mizer Adaptive Dehumidification System Sequence of Operation and

System Response -- Single Compressor Unit (48HJ004-007)

THERMOSTAT

Y1

H

Off

On

On

On

On

On

On

On

On

On

Off

OAT

INPUT

Y2

On

Off

On

Off

Off

OAT. < Economizer

LEGEND

-- Outdoor AirTemperature

ECONOMIZER

No

No

Yes

Yes

No

FUNCTION

Set Point I Economizer

Off

Off

On

On

Off

48HJ UNIT OPERATION

Comp.

1 I Subcooling

Normal Operation

On Yes

On

On

On

On

Yes

Yes

No

No

Mode I Hot Gas Reheat Mode

No

No

No

Yes

Yes

NOTE: On a thermostat call for W1, all cooling and dehumidification be off.

will

42

Lubrication

COMPRESSORS -- Each compressor is chmged with correct amount of oil at the factory.

FAN MOTOR BEARINGS -Fan motor bemings are of the permanently lubricated type. No further lubrication is required.

No lubrication of condenser-fan or evaporator-fan motors is required.

Condenser-Fan Adjustment (Fig. 55) -Shut off unit power supply.

Relnove condenser-fan assembly (grille, motol: motor cover, and fan) and loosen fan hub setscrews.

Adjust fan height as shown in Fig. 55. Tighten setsclews and replace condenser-fan assembly.

EconoMi$er IV Adjustment-Refer to

EconoMi$er IV and EconoMi$er2 section on page 18.

Optional

Evaporator Fan Belt Inspection

-Check

condition

of evaporator belt or tension during heating and cooling inspections or as conditions lequile.

Replace belt or adjust as necessary.

High-Pressure Switch -The high-pressure switch contains a Schrader core depressor, and is located on the compressor hot gas line. This switch opens at 428 psig and closes at

320 psig. No adjustments are necessary.

Loss-of-Charge Switch -- The loss-of-charge

switch contains a Schrader core depressor, and is located on the compressor liquid line. This switch opens at 7 psig and closes at

22 psig. No adjustments me necessary.

Freeze-Stat

-_n_e freeze-stat is a bimetal temperaturesensing switch that is located on the "hair-pin" end of the evaporator coil. The switch protects the evaporator coil from fleeze-up due to lack of airflow. The switch opens at 30 F and closes at 45 E No adjustments are necessary.

Refrigerant Charge--Amount

of refrigerant charge is listed on unit namepkite (also refer to Table 1). Refer to HVAC

Servicing Procedures literature available at your local distributor and the following procedures.

Unit panels must be in place when unit is operating during chm'ging procedure.

Unit must operate a minimum of 10 minutes before checking or adjusting refrigerant charge.

An accurate superheat, themlocouple-type or thermistortype thermometer, and a gage manifold are required when using the supeflleat charging method for evaluating the unit chage.

Do not use menuiw or small dia/-_'pe thermometers

be_ztu.w they am not adequaW _br this 0)')e qf measurement.

TOP

PANEL

\

REMOVE

SCREWS

REMOVE

SCREWS

CONDENSER

REMOVE

CONTROL POST

CORNER POST

NO CHARGEUse standard evacuating techniques.

After evacuating system to 500 microns, weigh in the specified mnount of refrigerant.

(Refer to Table 1 and unit information plate.)

LOW CHARGE COOLING -Using Cooling Charging

Ch;uts, Fig. 56-59, vary refrigerant until the conditions of the chmls are met. Note the charging charts are different from type normally used. Chmls are based on charging the units to the correct superheat for the various operating conditions.

Accurate pressure gage and temperature sensing device are required.

Connect the pressure gage to the service port on the suction line. Mount the temperature sensing device on the suction line and insulate it so that outdoor ambient temperature does not affect the reading.

Indoor-air cfm must be within the normal operating range of the unit.

COIL CORNER

POST

CENTER BAFFLE TOP PANEL

COMPRESSOR

ACCESS

PANEL CONDENSER COIL

Fig. 53 -Propping Up Top Panel

TOP VIEW

PANEL

ENTER BAFFLE

CONDENSER

COIL

INNERCOIL

OUTER

COILSECTION

102 mm

(4") MAX

/

HAIRPIN END

CLEAN

Fig.

54 -Separating Coil Sections

COILCENTER

POST

ACCESS

PANEL

CONDENSER

COIL

REMOVE COIL

CORNER POST

Fig. 52 -- Cleaning Condenser Coil

REMOVE

SCREWS

43

UNIT 48HJ

004-006 and 007 (208/230 V)

007 (460 and 575 V)

Fig. 55Condenser-Fan

FAN HEIGHT -- "A" (in.)

2.75

3.50

Adjustment

HUMIDI-MIZER

TM

SYSTEM CHARGING -- The system charge for units wifll the Humidi-MiZer a&tptive dehumidification system is greater than that of the standard unit _flone.

The charge for units with this option is indicated on the unit nmneplate &awing.

Also lefer to Fig.

60-63.

To charge systems using the Humidi-MiZer a&tptive dehumidification system, fully evacuate, recoven and recharge the system to the nmneplate specified charge level. To check or adjust refrigerant chalge on systems using the Humidi-MiZer adaptive dehumidification system, charge per Fig. 60-63.

NOTE: When using the charging chin-Is, it is important that only the subcooling/reheat dehumidification coil liquid line solenoid valve be energized.

The subcooling/reheat dehumidification coil liquid line solenoid valve MUST be energized to

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40

SUCTION LINE TEMPERATURE (*F)

4

I I

10

I

16 211

SUCTION LINE TEMPERATURE ('C)

_7

Fig. 56 -- Cooling Charging Chart,

Standard 48HJ004

312

SUCTION LINE TEMPERATURE (*F)

Fig. 57 -- Cooling Charging Chart,

Standard 48HJ005

44 use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed.

The chin-Is reference a liquid pressure (psig) and temperature at a point between the condenser coil and the subcooling/ reheat dehumidification coil. A tap is provided on the unit to measure liquid pressure entering the subcooling/reheat dehumidification coil.

IMPORTANT: The subcooling mode charging ch_u-ts

(Fig. 60-63) me to be used ONLY with units having the

Humidi-MiZer adaptive dehumidification system. IN) NOT use stan&Lrd chm'ge (Fig.

56-59) for units with Humidi-

MiZer system, and DO NOT use Fig. 60-63 for standmd units.

vsE11_

68£ I00-

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SUCTION

I

LINE TEMPERATURE ('F)

SUCTION LINE TEMPERATURE ('C)

Fig. 58 -- Cooling Charging Chart,

Standard 48HJ006

758 110

68_ 100

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SUCTION LINE TEM_RATURE

70

('F)

_ 1_ 116 211

_CTIOM LINE TENPERAT_E OC)

Fig. 59Cooling Charging Chart,

Standard 48HJ007

TO USE COOLING CHARGING CHART, STANDARD

UNIT--Take the outdoor ambient temperature trod mad the suction pressure gage. Refer to ch_uts to detennine what suction temperature should be. If suction temperature is high, add refrigerant.

If suction temperature is low. carefully recover some of file charge.

Recheck the suction pressure as charge is adjusted.

Exmnple (Fig. 58):

Outdoor Temperature ...............................

Suction Pressure ................................

Suction Temperature should be .......................

(Suction temperature may vtu'y _+5 ° E)

75 F

70 psig

48 F

If a charging device is used, temperature and pressure readings must be accomplished using the charging charts.

CAIN N CHARGING CHART

3 TON - 60HZ

(APPI ICABLE ONLY WHEN CO!l 15IN SUBCOOLING'P_30E)

OUTOOORFAN MUST_ OPERATIN6

TO USE COOLING CHARGING CHARTS, UNITS WITH

HUMIDI-MIZER

TM

ADAPTIVE DEHUMIDIFICATION

SYSTEM--Refer to charts (Fig.

60-63) to determine the proper leaving condenser pressure and temperature.

Exmnple (Fig. 60):

Leaving Condenser Pressure .....................

Leaving Condenser Temperature ...................

250 psig

105 F

NOTE: When using the charging charts, it is important that only the subcooling/reheat dehumidification coil liquid line solenoid valve be energized.

The subcooling/reheat dehumidification coil liquid line solenoid valve MUST be energized to use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed.

(APPL

680LIN6

ICABLE ONLY

_

5 tON

C_IIR6Itl6

GOHZ

WHEN COIL

CHART

IS IN SUBCOOLiNG MODE )

LI_UI_ PRESSUR_L_AVING CO_DENS_R(PSIG)

NOTE: When using the charging charts, it is important that only the subcoolin( _reheat dehumidification coil liquid line solenoid valve be energized.

The subcooling/reheat dehumidification coil liquid line solenoid valve MUST be energized to use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed.

Fig. 60 -- Cooling Charging Chart, 48HJ004 with

Optional Humidi-MiZer Adaptive Dehumidification

System

CODLIN8 MODE CHARSINt'3 CHART

4 TON 50HZ

(APPLICABLE ONLY WHEN COIL IS IN 5UBOOOLING MODE)

_o i_ 1so 2oo 2so _oo 3so 4oo

NOTE: When using the charging charts, it is important that only the subcooling/reheat dehumidification coil liquid line solenoid valve be energized.

The subcooling/reheat dehumidification coil liquid line solenoid valve MUST be energized to use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed.

Fig. 62 -- Cooling Charging Chart, 48HJ006 with

Optional Humidi-MiZer Adaptive Dehumidification

System

COOLING _

6 TON

CHkR61_

60HZ

(APPLICABLE

CHi_T

ONLY WHEN COIL ISIN SUBCOOLING MODE ) oumooRFANMUSTaE OPERATING

4Do SD mo 1so _ 2_ _o

LIgtllD PRESSURE (PSIG)

_o 4_

NOTE: When using the charging charts, it is important that only the subcooling/reheat dehumidification coil liquid line solenoid valve be energized.

The subcooling/reheat dehumidgication coil liquid line solenoid valve MUST be energized to use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed.

Fig. 61 -- Cooling Charging Chart, 48HJ005 with

Optional Humidi-MiZer Adaptive Dehumidification

System

45

NOTE: When using the charging charts, it is important that only the subcooling/reheat dehumidification coil liquid line solenoid valve be energized.

The subcoofing/reheat dehumidgication coil liquid line solenoid valve MUST be energized to use the charging charts and the outdoor motor speed controller jumpered to run the fan at full speed.

Fig. 63 -- Cooling Charging Chart, 48HJ007 with

Optional Humidi-MiZer Adaptive Dehumidification

System

Flue Gas Passageways -- To inspect the flue collector box and upper areas of the heat exchanger:

1. Remove the combustion blower wheel and motor assembly according to directions in Combustion-Air Blower section below.

2.

Remove the 3 screws holding the blower housing to the flue coveg

3.

Remove the flue cover to inspect the heat exchangel:

4.

Clean all surfaces as required using a wire blush.

Combustion-Air Blower--

Clean periodically to ensure proper airflow and heating eft]ciency.

Inspect blower wheel every fall and periodically during heating season. For the fil.st heating season, inspect blower wheel bimonthly to determine proper cleaning frequency.

To inspect blower wheel, remove draft hood and screen.

Shine a flashlight into opening to inspect wheel. If cleaning is required, remove motor and wheel as follows:

1. Slide burner access panel out.

2.

Remove the 5 screws that altach induced-draft motor assembly to the vestibule covel:

3.

Slide the motor and blower wheel assembly out of the blower housing.

The blower wheel can be cleaned at this point.

If additional cleaning is required, continue with

Steps 4 and 5.

4.

To remove blower from the motor shaft, remove

2 setscrews.

5.

To remove motor, remove the 4 screws that hold the motor to mounting plate. Remove the motor cooling fan by removing one setscrew.

Then remove nuts that hold motor to mounting plate.

6.

To reinstall, reverse the procedure outlined above.

Limit Switch-

Remove blower access panel (Fig.

7).

Limit switch is located on the fan deck.

Burner Ignition -Unit is equipped with a direct spark ignition 100% lockout system. Integrated Gas Unit Controller

(IGC) is located in the control box (Fig. 12). A single LED on the [GC provides a visual display of operational or sequentkd problems when the power supply is uninterrupted. The LED can be observed through the viewport. When a break in power occurs, the IGC will be reset (resulting in a loss of fault history) and the evaporator fan on/off times delay will be reset. Dnring servicing, refer to the label on the control box cover or Table 33 for an explanation of LED error code descriptions.

If lockout occurs, unit may be reset by interrupting power supply to unit forat least 5 seconds.

Table

33

-- LED Error Code Description*

LED INDICATION

ON

OFF

1 Flasht

2 Flashes

3 Flashes

4 Flashes

5 Flashes

6 Flashes

7 Flashes

8 Flashes

9 Flashes

ERROR CODE

Normal Operation

Hardware Failure

DESCRIPTION

Evaporator Fan On/Off Delay Modified

Limit Switch Fault

Flame Sense Fault

4 Consecutive Limit Switch Faults

Ignition Lockout Fault

Induced-Draft Motor Fault

Rollout Switch Fault

Internal Control Fault

Software Lockout

LEGEND

LED-Light-Emitting Diode

*A 3-second pause exists between LED error code flashes. If more than one error code exists, all applicable codes will be displayed in numerical sequence.

]-Indicates a code that is not an error. The unit will continue to operate when this code is displayed,

Refer to Troubleshooting Tables 34-38 for additional _

I

46

Main Burners

-At the beginning of each heating season, inspect for deterioration or blockage due to corrosion or other causes. Observe the main burner flames and adjust, if necessary.

When servicing gas train, do not hit or plug orifice spuds.

REMOVAL AND REPLACEMENT

(See Fig. 64 and 65)

1. Shut offmanual gas valve.

2.

Shut off power to unit, tag disconnect.

OF GAS TRAIN

3.

Remove compressor access panel.

4.

Slide out burner compartment side panel.

5.

Disconnect gas piping at unit gas valve.

6.

Remove wires connected to gas valve. Mark each wire.

7.

Remove induced-draft motol, ignitor, and sensor wires at the Integrated Gas Unit Controller (IGC).

8.

Remove the 2 screws that attach the burner rack to the vestibule plate.

9.

Remove the gas valve bracket.

10.

Slide the burner tray out of the unit (Fig. 65).

11. To reinstall, reverse the procedure outlined above.

INDUCED-

DRAFT

MOTOR

PLATE

SECTION

DRAFT

MOTOR

PRESSURE

TAP

Fig. 64 -- Burner Section Details

EXHAUST

- VESTIBULE

PLATE

"BLOWER

HOUSING

"GAS

VALVE

GAS

VALVE

S MANIFOLD PRESSURE TAP f-_ _ F ¸

BURNERS

Fig. 65 -- Burner Tray Details

ROLLOUT

SWITCH

CLEANING AND ADJUSTMENT

1. Remove burner rack from unit as described above.

2.

Inspect burners and, if dirty, remove burners from rack.

3.

Using a soft blush, clean burners and cross-over port as required.

4.

Adjust spark gap. See Fig. 66.

5.

Reinst_dl burners on rack.

6.

Reinst_dl burner rock as described above.

Replacement Parts -A complete list of replacement parts may be obtained froln any Carrier distributor upon request. Refer to Fig. 67 for a typical unit wiring schelnatic.

/

SEE DETAIL"(3"

/

LOW H EAT

48HJE/H004, 48HJD/G005-00772,000 BTUH INPUT

48HJM004, 48HJL005,006 -- 60,000 BTUH INPUT

L

2

L

t" \

./

"F

MEDIUM AND HIGH HEAT

48HJE/H005-007, 48HJF/K004 -115,000 BTUH INPUT

48HJF/K005-007 -150,000 BTUH INPUT

48HJM005,006; 48HJN004 -- 90,000 BTUH INPUT

48HJN005,006120,000 BTUH INPUT

\ L

SEE DETAIL _"

SPARK GAP

.120/.141

IN. (3.05/3.56

mm)

SPARK GAP MUST BE POSITIONED TO

IGNITE ON FIRST TRY. (PLACE

SPARK GAP WITHIN BURNER

CIRCUMFERENCE AS SHOWN)

,yN.

(4.60 ram)

DETAIL *C*

Fig. 66 -- Spark Gap Adjustment

47

DETAIL "E"

SEE NOTE *3 _ i i

SCHEHATIC

208/230 3 BO

EQUP GND

GRN/YELI_

I

ONNECTIOI

BOARD

CLO

Y

PL6 R

FOR STD

UNIT PL6

--PNK

--<_l-

.YEL*

.BLU.

-BLK-

--BRN.

--RED°

--GRA.

--pNKI

RED o iovoc/420MA CONTROLLER

J CONNECTIONFOR ECONOMIZER

FACTORYOR FIELD

L INSTALLED

O@

NOTES:

1, If any of the original wire furnished must be replaced, it must be replaced with type 90 C wire or its equivalent.

2, Three phase motors are protected under primary single phasing conditions.

3, Use copper conductors only.

4, TRAN is wired for 230 v unit. If unit is to be run with 208 v power supply, disconnect BLK wire from 230 v tap (ORN) and connect to 208 v tap (RED).

Insulate end of 230 v tap.

COMPOIENT ARRANGEMENT

C

CAP

CLO

-Contactor, Compressor

-Capacitor

-Compressor Lockout

COMP -Compressor Motor

EQUIP -Equipment

FPT

FU

GND

HPS

HS

--

--

--

Freeze Up Protection

Fuse

Ground

-High-Pressure Switch

-Hall-Effect Sensor

Thermostat

IFC

IFM

IGC

LPS

LS

MGV

-Ignitor

Motor

-Indoor Fan Contactor

-Indoor Fan Motor

-Integrated Gas Unit Controller

-Low-Pressure Switch

-Limit Switch

-Main Gas Valve

LEGEND

OFM

OLR

P

-Outdoor (Condenser) Fan Motor

-Overload Relay

-Plug

PL

QT

-Plug Assembly

-Quadruple Terminal

RS

SAT

--

--

Rollout Switch

Supply Air Temperature

TRAN -Transformer

Sensor

Field Splice

_ Marked Wire

Terminal (Marked) _

O Terminal (Unmarked)

Terminal Block

_

O

_

-----

_

Splice

Splice (Marked)

Factory Wiring

Field Control Wiring

Field Power Wiring

Accessory or Optional Wiring

To indicate common potential only; not to represent wiring.

Fig. 67 -- Typical Wiring Schematic and Component Arrangement (208/230-3-60 Shown)

48

TROUBLESHOOTING

Unit Troubleshooting troubleshooting details.

-Refer to Tables 34-38 for unit

SYMPTOM

Hardware Failure.

(LED OFF)

Fan ON/OFF Delay Modified

(LED/FLASH)

Limit Switch Fault.

(LED 2 Flashes)

Flame Sense Fault.

(LED 3 Flashes)

4 Consecutive

Switch Faults.

(LED 4 Flashes)

Limit

Ignition Lockout.

(LED 5 Flashes)

Induced-Draft Motor Fault.

(LED 6 Flashes)

Rollout Switch Fault.

(LED 7 Flashes)

Internal Control Fault.

(LED 8 Flashes)

Temporary Software

Lockout

(LED 9 Flashes)

Table 34 -- LED Error Code Service Analysis

CAUSE

Loss of power to control module (IGC).

REMEDY

Check 5 amp fuse on IGC, power to unit, 24-v circuit breaker, and transformer.

Units without a 24-v circuit breaker have an internal overload in the 24-v transformer.

If the overload trips, allow

10 minutes for automatic reset.

Ensure unit is fired on rate and temperature rise is correct.

High limit switch opens during heat

exchanger warm-up period before fan-on delay expires.

Limit switch opens within three minutes after blower-oft delay timing in Heating mode

High temperature limit switch is open.

Ensure units' external static pressure is within application guidelines.

Check the operation of the indoor (evaporator) fan motor.

Ensure that the supply-air temperature rise is in accordance with the range on the unit nameplate.

Reset unit. If problem persists, replace control board.

The IGC sensed flame that should not be

)resent.

Inadequate airflow to unit.

Check operation of indoor (evaporator) fan motor and that supply-air temperature rise agrees with range on unit nameplate information.

Unit unsuccessfully attempted ignition for

15 minutes.

IGC does not sense that induced-draft motor is operating,

Rollout switch has opened.

Microprocessor has sensed an error in the software or hardware.

Electrical interference is impeding the IGC software,

Check ignitor and flame sensor electrode spacing, gaps, etc.

Ensure that flame sense and ignition wires are properly terminated.

Verify that unit is obtaining proper amount of gas.

Check for proper voltage. If motor is operating, check the speed sensor plug/IGC Terminal J2 connection.

Proper connection: PIN 1-- White, PIN 2 -- Red, PIN 3-Black.

Rollout switch will automatically reset, but IGC will continue to lock out unit. Check gas valve operation.

Ensure that induceddraft blower wheel is properly secured to motor shaft.

Reset unit at unit disconnect.

If error code is not cleared by resetting unit power, replace the IGC.

Reset 24-v to control board or turn thermostat off and then on. Fault will automatically reset itself in one hour.

If the IGC must be replaced, be sure to ground yourself to dissipate any electrical charge that may be present before handling new control board. The IGC is sensitive to static electricity and may be damaged if the necessary precautions are not taken.

IMPORTANT: Refer to heating troubleshooting

LEGEND

IGC -Integrated Gas Unit Controller

LED -Light-Emitting Diode for additional I

I

49

PROBLEM

Burners Will Not

Ignite.

Inadequate Heating,

Poor Flame

Characteristics.

Burners Will Not

Turn Off.

Table 35 -- Heating Service Analysis

CAUSE

Misaligned spark electrodes.

No gas at main burners.

Water in gas line.

No power to furnace.

No 24 v power supply to control circuit.

Miswired or loose connections.

Burned-out heat anticipator in thermostat.

Broken thermostat wires.

Dirty air filter.

Gas input to unit too low.

Unit undersized for application.

Restricted airflow.

Blower speed too low.

Limit switch cycles main burners.

Too much outdoor air.

Incomplete combustion (lack of combustion air) results in:

Aldehyde odors, CO (carbon monoxide), sooting flame, or floating flame.

Unit is locked into Heating mode for a one minute minimum.

REMEDY

Check flame ignition and sensor electrode positioning. Adjust as needed.

Check gas line for air purge as necessary. After purging gas line of air, allow gas to dissipate for at least 5 minutes before attempting to relight unit.

Check gas valve.

Drain water and install drip leg to trap water.

Check power supply, fuses, wiring, and circuit breaker.

Check transformer. Transformers with internal overcurrent protection require a cool-down period before resetting. Check 24-v circuit breaker; reset if necessary.

Check all wiring and wirenut connections.

Replace thermostat.

Run continuity check. Replace wires, if necessary.

Clean or replace filter as necessary.

Check gas pressure at manifold. Clock gas meter for input, if too low, increase manifold pressure or replace with correct orifices.

Replace with proper unit or add additional unit.

Clean filter, replace filter, or remove any restrictions.

Use high speed tap, increase fan speed, or install optional blower, as suitable for individual units, Adjust pulley.

Check rotation of blower, thermostat heat anticipator settings, and temperature rise of unit. Adjust as needed.

Adjust minimum position.

Check economizer operation.

Check all screws around flue outlets and burner compartment. Tighten as necessary.

Cracked heat exchanger.

Overtired unit -- reduce input, change orifices, or adjust gas line or manifold

)ressure.

Check vent for restriction. Clean as necessary.

Check orifice to burner alignment.

Wait until mandatory one-minute time period has elapsed or reset power to unit.

Table 36 -- Humidi-MiZer

TM

Adaptive Dehumidification System Subcooling Mode Service Analysis

PROBLEM

Subcooling Mode (Liquid Reheat)

Will Not Energize.

Low System Capacity,

Loss of Compressor Superheat

Conditions with Subcooling/Beheat

Dehumidification Coil Energized.

CAUSE

No power to control transformer from evaporator-fan motor.

No power from control transformer to liquid line solenoid valve.

Liquid line solenoid valve will not operate.

Liquid line solenoid valve will not open.

Low refrigerant charge or frosted evaporator coil.

Thermostatic expansion valve (TXV).

REMEDY

Check power source and evaporator-fan wire connections are tight.

relay. Ensure all

1. Fuse open; check fuse.

Ensure continuity of wiring.

2. Low-pressure switch open. Cycle unit off and allow lowpressure switch to reset.

Replace switch if it will not close.

3. Transformer bad; check transformer.

1. Solenoid coil defective; replace.

2. Solenoid valve stuck open; replace.

Valve is stuck closed; replace valve.

1. Check charge amount.

Charge per Fig. 60-63.

2. Evaporator coil frosted; check and replace low-pressure switch if necessary.

1. Check TXV bulb mounting, and secure tightly to suction line.

2. Replace TXV if stuck open or closed.

Table 37 -- Humidi-MiZer

TM

Adaptive Dehumidification System Hot Gas Reheat Mode Service Analysis

PROBLEM

Reheat Mode Will Not Energize.

Loss of Compressor Superheat

Conditions with Subcooling/Reheat

Dehumidification Coil Energized,

Excessive Superheat,

CAUSE

No power to control transformer from evaporator-fan motor.

No power from control transformer to hot gas line solenoid valve

Hot gas line solenoid valve will not operate.

Low refrigerant charge or frosted evaporator coil.

Thermostatic expansion valve (TXV).

Liquid line solenoid valve will not operate.

Hot gas line solenoid valve will not close.

REMEDY

Check power source and evaporator-fan wire connections are tight.

relay. Ensure all

1. Fuse open; check fuse.

Ensure continuity of wiring.

2. Low-pressure switch open. Cycle unit off and allow lowpressure switch to reset.

Replace switch if it will not close.

3. Transformer bad; check transformer.

1. Solenoid coil defective; replace.

2. Solenoid valve stuck closed; replace.

1. Check charge amount.

Charge per Fig. 60-63.

2. Evaporator coil frosted; check and replace low-pressure switch if necessary.

1. Check TXV bulb mounting, and secure tightly to suction line.

2. Replace TXV if stuck open or closed.

Valve is stuck, replace valve.

Valve is stuck; replace valve.

50

PROBLEM

Compressor and Condenser Fan

Will Not Start.

Compressor Will Not Start

But Condenser Fan Runs.

Compressor Cycles (Other Than

Normally Satisfying Thermostat).

Compressor Operates Continuously.

Excessive Head Pressure.

Head Pressure Too Low.

Excessive Suction Pressure.

Suction Pressure Too Low.

Evaporator Fan Will Not Shut Off.

Table 38 -- Cooling Service Analysis

CAUSE

Power failure.

Fuse blown or circuit breaker tripped.

Defective thermostat, contactor, transformer, or control relay.

Insufficient line voltage.

Incorrect or faulty wiring.

Thermostat setting too high.

Faulty wiring or loose connections in compressor circuit.

Compressor motor burned out, seized, or internal overload open.

Defective run/start capacitor, overload, start relay.

One leg of 3-phase power dead.

Refrigerant overcharge or undercharge.

REMEDY

Call power company.

Replace fuse or reset circuit breaker.

Replace component.

Determine cause and correct.

Check wiring diagram and rewire correctly.

Lower thermostat setting below room temperature.

Check wiring and repair or replace.

Determine cause. Replace compressor.

Determine cause and replace.

Replace fuse or reset circuit breaker. Determine cause.

Recover refrigerant, evacuate system, and recharge to nameplate.

Replace and determine cause.

Determine cause and correct.

Determine cause and correct.

Determine cause and replace.

Defective compressor.

Insufficient line voltage.

Blocked condenser.

Defective run/start capacitor, overload, or start relay.

Defective thermostat.

Faulty condenser-fan motor or capacitor.

Restriction in refrigerant system.

Dirty air filter.

Unit undersized for load.

Thermostat set too low.

Low refrigerant charge.

Leaking valves in compressor.

Air in system.

Condenser coil dirty or restricted.

Dirty air filter.

Dirty condenser coil.

Refrigerant overcharged.

Air in system.

Condenser air restricted or air short-cycling.

Low refrigerant charge.

Compressor valves leaking.

Restriction in liquid tube.

High heat load.

Compressor valves leaking.

Refrigerant overcharged.

Dirty air filter.

Low refrigerant charge.

Metering device or low side restricted.

Insufficient evaporator airflow.

Temperature too low in conditioned area.

Outdoor ambient below 25 E

Time off delay not finished.

Replace thermostat.

Replace.

Locate restriction and remove.

Replace filter.

Decrease load or increase unit size.

Reset thermostat.

Locate leak, repair, and recharge.

Replace compressor.

Recover refrigerant, evacuate system, and recharge.

Clean coil or remove restriction.

Replace filter.

Clean coil.

Recover excess refrigerant.

Recover refrigerant, evacuate system, and recharge.

Determine cause and correct.

Check for leaks, repair, and recharge.

Replace compressor.

Remove restriction.

Check for source and eliminate.

Replace compressor.

Recover excess refrigerant.

Replace filter.

Check for leaks, repair, and recharge.

Remove source of restriction.

Increase air quantity. Check filter and replace if necessary.

Reset thermostat.

Install low-ambient kit.

Wait for 30-second off delay.

5!

EconoMiSer IV Troubleshooting for EconoMi$er IV logic.

-See Table 39

A functional view of the EconoMi$er is shown in Fig. 68.

Typical settings, sensor ranges, and jumper positions tue also shown.

An EconoMi$er IV simulator program is available fiom Ctmier to help with EconoMi$er IV muning and troubleshooting.

ECONOMI$ER IV PREPARATION -This procedure is used to prepare the EconoMi$er IV for troubleshooting.

No troubleshooting or testing is done by performing the following procedme.

NOTE: This procedure requires a 9-v battely, 1.2 kilo-ohm resistol: and a 5.6 kilo-ohm resistor which are not supplied with the EconoMi$er IV.

IMPORTANT: Be sure to record the positions of all poten] tiometers before starting troubleshooting.

1

1. Disconnect power at TR and TRI. All LEDs should be off. Exhaust fan contacts should be open.

2.

Disconnect device at P and PI.

3.

Jumper P to PI.

4.

Disconnect wires at T and TI. Place 5.6 kilo-ohm resistor across T and TI.

5.

Jumper TR to 1.

6.

Jumper TR to N.

7.

If connected, remove sensor from terminals So and +.

Connect 1.2 kilo-ohm 4074EJM checkout resistor across terminals So and +.

8.

Put 620-ohm resistor across terminals SR and +.

9.

Set minimum position, DCV set point, and exhaust potentiometers fully CCW (counterclockwise).

10.

Set DCV maximum position potentiometer fully CW

(clockwise).

11. Set enthalpy potentiometer to D.

12.

Apply power (24 vac) to terminals TR and TRI.

DIFFERENTIAL ENTHALPY-To check differential enthalpy:

1. Make sure EconoMiSer IV preparation procedure has been performed.

2.

Place 620-ohm resistor across So and +.

3.

Place 1.2 kilo-ohm resistor across SR and +. The Free

Cool LED should be lit.

4.

Remove 620-ohm resistor across So and +. The Free

Cool LED should turn off.

5.

Return EconoMiSer IV settings and wiring to normal after completing troubleshooting.

SINGLE ENTHALPY -- To check single enthalpy:

1. Make sure EconoMiSer IV preparation procedure has been performed.

2.

Set the enthalpy potentiometer to A (fully CCW).

The

Free Cool LED should be lit.

3.

Set the enth_dpy potentiometer to D (fully CW). The Free

Cool LED should turn off.

4.

Return EconoMiSer IV settings and wiring to normal after completing troubleshooting.

DCV (DEMAND CONTROLLED VENTILATION) AND

POWER EXHAUST -To check DCV and Power Exhaust:

1. Make sure EconoMiSer IV preparation procedure has been performed.

2.

Ensure terminals AQ and AQI _ue open.

The LED for both DCV and Exhaust should be off.

The actuator should be lhlly closed.

3.

Connect a 9-v battery to AQ (positive node) and AQl

(negative node).

The LED for both DCV and Exhaust should turn on. The actuator should chive to between 90 and 95% open.

4.

Turn the Exhaust potentiometer CW until the Exhaust

LED turns off. The LED should turn off when the potentiometer is approximately 90%. The actuator should remain in position.

5.

Turn the DCV set point potentiometer CW until the DCV

LED turns off. The DCV LED should turn off when the potentiometer is approximately 9-v. The actuator should drive fully closed.

6.

Turn the DCV and Exhaust potentiometers CCW until the Exhaust LED turns on. The exhaust contacts will close 30 to 120 seconds after the Exhaust LED turns on.

7.

Return EconoMi$er IV settings and wiring to normal after completing troubleshooting.

DCV MINIMUM AND MAXIMUM POSITION -- To check the DCV minimum and maximum position:

1. Make sure EconoMiSer IV prep_uation procedure has been performed.

2.

Connect a 9-v battery to AQ (positive node) and AQI

(negative node).

The DCV LED should turn on. The actuator should chive to between 90 and 95% open.

3.

Turn the DCV Maximum Position potentiometer to midpoint. The actuator should drive to between 20 and 80% open.

4.

Turn the DCV Maximum Position potentiometer to lhlly

CCW. The actuator should drive fully closed.

5.

Turn the Minimum Position potentiometer to midpoint.

The actuator should chive to between 20 and 80% open.

6.

Turn the Minimum Position Potentiometer lhlly CW. The actuator should drive fully open.

7.

Remove the jumper from TR and N. The actuator should drive fully closed.

8.

Return EconoMiSer IV settings and wiring to norm_d after completing troubleshooting.

SUPPLY-AIR INPUT -- To check supply-air input:

1. Make sure EconoMi$er IV prepmation procedure has been performed.

2.

Set the Enthalpy potentiometer to A. The Free Cool LED turns on. The actuator should drive to between 20 and

80% open.

3.

Remove the 5.6 kilo-ohm lesistor and jumper T to TI.

The actuator should chive lhlly open.

4.

Remove the jumper across T and TI. The actuator should drive fully closed.

5.

Return EconoMiSer IV settings and wiring to norm;d after completing troubleshooting.

ECONOMISER IV TROUBLESHOOTING COMPLE-

TION -This procedure is used to return the EconoMiSer IV to operation.

No troubleshooting or testing is done by performing the following procedure.

1. Disconnect power at TR and TRI.

2.

Set enthalpy potentiometer to previous setting.

3.

Set DCV maximum position potentiometer to previous setting.

4.

Set minimum position, DCV set point, and exhaust potentiometers to previous settings.

5.

Remove 620-ohm resistor from terminals SR and +.

6.

Remove 1.2 kilo-ohm checkout resistor from terminals

So and +. If used, reconnect sensor from terminals So and

+.

52

7. Remove jumper flom TR to N.

8. Remove jumper fiom TR to 1.

9. Remove 5.6 kilo-ohm resistor from T and TI. Reconnect wiles tit T and TI.

l 0.

Remove jumper fiom P to Pl. Reconnect device a P and

PI.

11. Apply power (24 vac) to terminals TR and TRI.

Table 39 -- EconoMi$er IV Input/Output Logic

Demand Control

Ventilation

Below set

(DCV LED Off)

Above set

(DCV LED On)

(DCV)

1-Power at N terminal

High

INPUTS

Enthalpy*

Outdoor

(Free Cooling LED Off)

Low

(Free Cooling LED On)

High

(Free Cooling LED Off)

Low

(Free Cooling LED On) determines

24 vac (Occupied), no power (Unoccupied).

Return

Low

High

Low

High

Occupied/Unoccupied

**Modulation is based on the supply-air sensor signal.

1-1-Modulation is based on the DCV signal.

Compressor

Y1 Y2 Stage Stage

1 2

On On

On Off

Off Off

On On

On Off

Off Off

On On

On Off

Off Off

On On

On Off

Off Off

On

On

Off

On

Off

Off

On

On

Off

On

Off

Off

On

Off

Off

Off

Off

Off

On

Off

Off

Off

Off

Off

*For single enthalpy control, the module compares outdoor enthalpy to the ABCD set point.

setting:

OUTPUTS

N Terminalt

Occupied

Minimum position

Damper

Closed

Unoccupied

Modulating** (between rain.

3osition and full-open)

Minimum position

Modulating1-1- (between rain.

3osition and DCV maximum)

Modulating***

Modulating**

Modulating1-1- (between closed and DCV maximum)

(between closed and full-open)

Closed

Modulating1-1-1-

***Modulation is based on the greater of DCV and supply-air sensor signals, between minimum position and either maximum position (DCV) or fully open (supply-air signal).

I-I-I-Modulation is based on the greater of DCV and supply-air sensor signals, between closed and either maximum position (DCV) or fully open (supply-air signal).

Fig. 68 -- EconoMi$er IV Functional View

53

Access panels 19

Altitude compensation 38

Barometric flow capacity 21

Burner ignition 46

Burner rack 46

Burner section 46

Burner spark gap 47

Carrier Comfort Network 15

ChaEzing chart, ret_igerant 44, 45

Clearance 6

CO2 sensor

Configuration 25

Settings 23, 25

Combustion blower wheel 46

Compressor

Lubrication 43

Mounting 37

Rotation 37

Condensate drain

Cleaning 42

Location 4

Condenser coil 8

Cleaning 42

Condenser fan 8

Adjustment 43

Control circuit

Wiring 7

Wiring raceway 10

Convenience outlet 15

Demand control ventilation 24

Dehunfidification 25

Dimensions 3, 6

Ductwork 2

EconoMi$er2 11_

4to 20 mAcontrol 20

Wiring 20

EconoMi$er IV 18-25

Control mode 21

Damper movement 24

Troubleshooting .52,53

Wiring 20

Electrical connections 5

Electrical data 11, 12

Enthalpy changeover set points 23

Evaporator coil 8

Cleaning 42

Evaporator fan motor

Lubrication 43

Motor data 27

Performance 28-36

Pulley adjustment 2.5,26

Pulley setting 8, 26

Speed 8

Factory-installed options

Convenience outlet 15

EconoMiSer IV 18-25

EconoMiSer2 18

Humidistat 13

Humidi-MiZer

TM dehumidification system 14

Manual outdoor air damper 13

Novar controls 15

PremierLink

TM controls 15-17

INDEX

Filter

Cleaning 42

Installation 19

Size 9

Flue gas passageways 46

Flue hood .5,7

Freeze protection thermostat 9, 43

Gas connection 9

Gas input 9

Gas piping .5,Z 37

Gas pressure 1, 9

Heat anticipator settings Z 9

Heat exchanger 9

High flow valves 37

High pressure switch 9, 4.?

Horizontal units 1, 2

Humidistat 13

Humidi-MiZeradaptive dehumidification system 13, 26, 41, 42, 44, 4.5,50

Indoor-airquality (IAQ) sensor 15, 23

Integrated gas controller 46

Error codes 46, 49

Leak test 37

Limit switch 46

Liquid propane 9

Low pressure switch 9, 43

Main burners 3& 46

Manual outdoor air damper 13

Mounting

Compressor 37

Unit 4

Natural gas 9

Novar controls 15

Operating limits 2

Operating sequence 39-42

Cooling 39

EconoMi$er IV 39

EconoMi$er2 39-41

Heating 39

Hunfidi-MiZer adaptive dehumidification system 41, 42

Outdoor air hood 14, 1.5,19

Outdoor air inlet screens 9, 3Z 42

Outdoor-air temperature sensor 15, 21

Physical data 8, 9

Power supply 5

Wiring 10

PremierLink controls 15-17

Pressure, drop

EconoMiSer IV 36

EconoMiSer2 36

Humidi-MiZer adaptive dehumidification system 26

Pro-Start-Up 37

Pressure switches

High pressure 9

Low pressure 9

Refrigerant

Charge 8, 43

Type 8

Refrigerant selwice ports 37

Replacement parts 47

Return air filter 9, 37

Return-air temperature sensor

Rigging unit 4, 5

Roof curb

Assembly 1

Dimensions 3

Connector package 3

Leveling tolerances 4

Weight 8

Safety considerations 1

Safety relief 39

Service 42-48

Sel_.ice ports 37

Slab mount 2

Start-up 37-42

Start-up checklist (_'L-I

Supply-air temperature sensor

Thermostat 10

Troubleshooting 40-53

Ventilation 39

Weight

Comer 6

EconoMiSer IV 6, 8

Unit .5,6,8

Wiring

4 to 20 mA control 20

Differential enthalpy 18

Humidistat 14

EconoMiSer2 20

EconoMiSer IV 20

Power connections 10

PremierLink control 10, 17

Thermostat 10

Unit 48

22

1.5,21

Copyright 2005 Carrier Corporation

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53480013-01 Printed in U.S.A.

Form 48HJ-33SI Pg 54 9-05 Replaces: 48HJ-29SI

START-UP CHECKLIST

(Remove and Store in Job File)

I. PRELIMINARY INFORMATION

MODEL NO.:

DATE:

SERIAL NO.:

TECHNICIAN:

II. PRE-START-UP (insert checkmark in box as each item is completed)

[] VERIFY THAT JOBSITE VOLTAGE AGREES WITH VOLTAGE LISTED ON RATING PLATE

[] VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT

[] REMOVE ALL SHIPPING HOLDDOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS

[] VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS

[] CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS

[] CHECK GAS PIPING FOR LEAKS

[] CHECK THAT RETURN (INDOOR) AIR FILTERS ARE CLEAN AND IN PLACE

[] VERIFY THAT UNIT INSTALLATION IS LEVEL

[] CHECK FAN WHEELS AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW TIGHTNESS

[] CHECK TO ENSURE THAT ELECTRICAL WIRING IS NOT IN CONTACT WITH REFRIGERANT LINES

OR SHARP METAL EDGES

[] CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS

III.

START-UP

ELECTRICAL

SUPPLY VOLTAGE

COMPRESSOR AMPS

INDOOR-FAN AMPS

L 1-L2

LI

LI

TEMPERATURES

OUTDOOR-AIR TEMPERATURE

RETURN-AIR TEMPERATURE

COOLING SUPPLY AIR

GAS HEAT SUPPLY AIR

PRESSURES

GAS INLET PRESSURE

GAS MANIFOLD PRESSURE

REFRIGERANT SUCTION

REFRIGERANT DISCHARGE

L2-L3

L2

L2

DB

DB

DB

DB

IN. WG

IN. WG (HIGH FIRE)

PSIG

PSIG

WB

L3-L 1

L3

L3

[] VERIFY REFRIGERANT CHARGE USING CHARGING TABLES

[] VERIFY THAT 3-PHASE SCROLL COMPRESSOR ROTATING IN CORRECT DIRECTION

LU rm

LU

Ic_ o

I-

Z

< o,

LU c_

LU

I-rm o

I-

<

Z o,

Copyright 2005 Carrier Corporation

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Book 1 14 Catalog No. 04-53480013-01 Printed in U.S,A.

Form 48HJ-33SI Pg CL-1 9-05 Replaces: 48HJ-29SI

Tab 1a 16a

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