Carrier 50TFF008-014 Installation, Start-up And Service Instructions Manual

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Page 1

50TFF008-014

Single-P ackage Rooftop Cooling Units

Installation, Start-Up and

Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS INSTALLATION Step 1 — Provide Unit Support

•ROOF CURB

• SLAB MOUNT

Step 2 — Field Fabricate Ductwork Step 3 — Install External Trap for

Condensate Drain

Step 4 — Rig and Place Unit

• POSITIONING

Step 5 — Make Electrical Connections

• FIELD POWER SUPPLY

• FIELD CONTROL WIRING

Step 6 — Adjust Factory-Installed

Options

• APOLLO CONTROL

• MANUAL OUTDOOR-AIR DAM PER

• OPTIONAL DURABLADE ECONOMIZER

• OPTIONAL ECONOMI$ER

Step 7 — Adjust Evaporator-Fan Speed START-UP SERVICE TROUBLESHOOTING START-UP CHECKLIST

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-33

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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34,35

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35-38

. . . . . . . . . . . . . . . . . . . . . . . . . 39-41

. . . . . . . . . . . . . . . . . . . . . . 1

. . . . . . . . . . . . . . . . . . . 1

. . . . . . . . . . . . . . . 1

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. . . . . . . . . . . 7

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. . . . . . . . . . . . . . . . . . . . . . . .CL-1

SAFETY CONSIDERATIONS

Installation and servicing air-conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should install, repair, or service air-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 air-conditioning equipment, observe precautions in the li terature, tag s and labels attached to t he 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 available for all brazing operations.

Before performing service or maintenance operations on unit, turn off main power switch to unit and tag. Electrical shock could cause personal injury.

Ensure voltage listed on unit data plate agrees with electrical supply provided for the unit.

INSTALLATION

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

Step 1 — Provide Unit Support

ROO F CU R B — Assemble and instal l acces sory roof curb in accordance 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 unit. If el ec tric control power is to be routed through the basepan, attach the accessory thru-the-bottom service connections to the roof curb in accordance with the acces sory insta llat ion instruct ions. Connection must be installed before unit is set on roof curb.

IMPORTANT: The gasketing of the unit to the roof curb

is critical for a watertight seal. Install gasket supplied

with the roof curb as shown in Fig. 2. Improperly

applied gasket can also result in air leaks and poor unit

performance.

Curb should be level. This is necessary for unit drain to function properly. Unit leveling tolerances are shown in Fig. 3. Refer to Accessory Roof Curb Installation Instructions for additional information as required.

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

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

Step 2 — Fi el d Fabr icat e Duc twor k —

cal discharge units, secure all ducts to roof curb and building structure. Do not connect ductwork to unit. For horizontal ap- plications, field-supplied isolation flanges should be attached to horizontal discharge openings and all ductwork attached to the flanges. Insulate and weatherproof all external ductwork, joints, and roof openings with counter flashing and mastic in accordance with applicable codes.

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

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

If electrical connections are to be routed through the bottom of the unit, attach accessory thru-the-bottom service connections to the basepan in accordance with installation instructions.

On verti-

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

Book 1 4 Tab 1b 6b

PC 111 Catalog No. 535-00010 Printed in U.S.A. Form 50TFF-2SI Pg 1 8-00 Replaces: New

Page 2

Fig. 1 — Horizontal Conversion Panels

A minimum clearance to combustibles is not required around ductwork on vertical discharge units. On horizontal discharge units, a minimum clearance of 1 in. is required for the first 12 in. of ductwork. Cabinet return-air static shall not exceed –.35 in. wg with Durablade or EconoMi$er economizer or –.45 in. wg without economizer.

Step 3 — Install External Trap for Condensate Drain —

located on the bottom and side of the unit. Unit discharge connections do not determine the use of drain connections; either drain connection can be used with vertical or horizontal applications.

When using the standard side drain connection, ensure the plug in the alternate bottom connection (in center of pan) is tight before installing the unit.

To use the bottom drain connection for a roof curb installation, relocate the factory-installed plug from the bottom connection to the side connection. See Fig. 4. The piping for the condensate drain and external trap can be completed after the unit is in place.

All units must have an external trap for condensate drainage. Install a trap at least 4 in. de ep and protect aga inst fr eezeup. See Fig. 5. If a drain line is installed downstream from the external trap, pitch the line away from the unit at 1 in. per 10 ft of run. Do not use a pipe size smaller than the unit connection.

The unit’s 3/4-in. condensate drain connections are

Step 4 — Rig and Place Unit —

Inspect unit for transportation damage. File any claim with transportation agency. Keep unit upright and do not drop. Spreader bars are not required if top crating is left on unit. Rollers may be used to move unit across a roof. Level by using unit frame as a reference. See Table 1 and Fig. 6 for addit ional information. Operating weight is shown in Table 1 and Fig. 6.

Lifting holes are provided in base rails as shown in Fig. 6

and 7. Refer to rigging instructions on unit.

All panels must be in place when rigging and lifting.

POSI TION I NG — Maintain clearance around and above unit to provide proper airflow and service access. See Fig. 7.

Position unit on roof curb so that the following clearances are maintained: rails on duct end, front and back of unit; 3

/4-in. clearance between roof curb a nd base

/16-in. clearance between roof curb and condenser fan end of unit (see Fig. 2, sections A-A and C-C).

Do not install unit in an indoor location. Do not locate unit

air inlet near exhaust vents or other sources of contaminated air.

Although unit is weatherproof, guard against water from

higher level runoff and overhangs.

After unit is in position, remove shipping materials and rig-

ging skid.

Page 3

ROOF CURB

ACCESSORY

“A”

CRRFCURB003A00 1′-2″ [356] CRRFCURB004A00 2′-0″ [610]

UNIT SIZE

50TFF

008-014

“B” “C”

2′-8

/16″

[827]

1′-1015/16″

“D” ALT

DRAIN

HOLE

[583]

NOTES:

1. Roof curb accessory is shipped disassembled.

2. Insulated panels, 1 in. thick polyurethane foam, 1

3. Dimensions in [ ] are in millimeters.

4. Roof curb: 16 gage steel.

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

13/4″

[44.5]

/4 lb density.

“E”

GAS

/4″

[19] NPT

/2″

[12.7] NPT

/4″

[19] NPT

“F”

POWER

/4″ [19] NPT

/4″ [31.7] NPT CRBTMPWR002A00

/4″ [19] NPT

11/4″ [31.7] NPT CRBTMPWR004A00

“G”

CONTROL

/2″ [12.7]

NPT

/2″ [12.7]

NPT

CONNECTOR

P ACKAGE

ACCESSORY

CRBTMPWR001A00

CRBTMPWR003A00

6. Service clearance 4 ft on each side.

7. Direction of airflow.

8. Connecto r pa ckages C RB TM PW R001A00 and 002A00 are for thru-the-curb connections. Packages CRBTMP003A00 and 004A00 are for thru-the-bottom connections.

Fig. 2 — Roof Curb Details

Page 4

Fig. 3 — Unit Leveling Tolerance

CONDENSATE PAN (SIDE VIEW)

DRAIN PLUG

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

Fig. 4 — Condensate Drain Connection

MAXIMUM ALLOWABLE

DIFFERENCE (in.)

A-B B-C A-C

0.5 1.0 1.0

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

Fig. 5 — External Trap Condensate Drain

NOTES:

1. Dimension in ( ) is in millimeters.

2. 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.

3. Unit weights do not include economizer. See Table 1 for unit weight of economizer.

All panels must be in place when rigging.

UNIT

50TFF

WEIGHT

755 342 77.42 1967 40.25 1022 41.31 1050

008

760 345 77.42 1967 40.25 1022 41.31 1050

009

915 415 77.42 1967 40.25 1022 49.31 1253

012

930 422 77.42 1967 40.25 1022 49.31 1253

014

Fig. 6 — Rigging Details

MAX

‘‘A’’ ‘‘B’’ ‘‘C’’

lb kg in. mm in. mm in. mm

DIMENSIONS

Page 5

STD UNIT

UNIT

WEIGHT

Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Ft-in. mm Ft-in. mm Ft-in. mm 50TFF008 50TFF009 50TFF012

50TFF014

A B C D E F

755 342 44 20 62 28 164 74 140 64 208 94 243 110 1-2 760 345 44 20 62 28 165 75 141 64 209 94 245 111 3-37/81013 3-55/161050 2-911/16856 915 415 44 20 62 28 199 90 170 77 252 114 294 134 2-57/8759 4-15/161253 3-03/8924 930 422 44 20 62 28 202 92 172 78 256 116 300 136 1-2

CONNECTION SIZES

Dia. [35] Field Power Supply Hole

″

Dia. [64] Power Supply Knockout

″

Dia. [44] Charging Port Hole

″

Dia. [22] Field Control Wiring Hole

″

— 14 NPT Condensate Drain

″

2″ Dia. [51] Power Supply Knockout

DURABLADE

ECONOMIZER

WEIGHT

ECONOMI$ER

WEIGHT

CORNER

WEIGHT

(A)

CORNER

WEIGHT

(B)

NOTES:

1. Dimensions in [ ] are in millimeters.

CORNER

WEIGHT

(C)

2. Center of gravity.

CORNER

WEIGHT

(D)

“H” “J” “K”

/8378 3-55/161050 2-911/16856

/8378 4-15/161253 3-03/8924

BOTTOM POWER CHART, THESE HOLES REQ’D

FOR USE WITH ACCESSORY PACKAGES —

CRBTMPWR001A00 (

CRBTMPWR002A00 (

THREADED

CONDUIT

SIZE

″

FPT

*Select either 3/

size.

or 1

″

WIRE

USE

24 V Power* 1 Power* 1

for power, depending on wire

″

3. Direction of airflow.

4. Ductwork to be attached to accessory roof curb only.

5. Minimum clearance (local codes or jurisdiction may prevail): a. Bottom to combustible surfaces (when not using curb) 0 inches, on horizontal discharge units with

electric heat 1 in. clearance to ductwork for 1 ft.

b. Condenser coil, for proper airflow, 36 in. one side, 12 in. the other. The side getting the greater

clearance is optional. c. Overhead, 60 in. to assure proper condenser fan operation. d. Between units, control box side, 42 in. per NEC (National Electrical Code). e. Between unit and ungrounded surfaces, control box side, 36 in. per NEC. f. Between unit and block or concrete walls and other grounded surfaces, control box side, 42 in. per

NEC. g. Horizontal supply and return end, 0 inches.

6. With the exception of the clearance for the condenser coil as stated in Notes 5a, b, and c, a removable fence or barricade requires no clearance.

7. Units may be installed on combustib le floors made from wood or Class A, B, or C roof cov ering mat erial.

8. The vertical center of gravity is 1′-71/ bottom of the base rail.

[495] for 008 and 009, 2′-0″ [610] for 012 and 014 up from the

″

/2″, 3/4″) OR

/2″, 11/4″)

REQ’D HOLE

SIZES (Max.)

[22.2]

″

[28.4]

″

[44.4]

″

Fig. 7 — Base Unit Dimensions

Page 6

Table 1 — Physical Data

UNIT SIZE 50TFF 008 009 012 014 NOMINAL CAPACITY (tons) OPERATING WEIGHT (lb)

Unit

Al/Al* Al/Cu*

Cu/Cu* Durablade Economizer EconoMi$er Roof Curb†

COMPRESSOR

Quantity No. Cylinders (per circuit) Oil (oz)

REFRIGERANT TYPE

Operating Charge (lb-oz)

Circuit 1

Circuit 2

CONDENSER COIL

Rows...Fins/in. Total Face Area (sq ft)

CONDENSER FAN

Nominal Cfm Quantity...Diameter (in.) Motor Hp...Rpm Watts Input (Total)

EVAPORATOR COIL

Rows...Fins/in. Total Face Area (sq ft)

EVAPORATOR FAN

Quantity...Size (in.) Std

Type Drive Std

Nominal Cfm Maximum Continuous Bhp Std

Motor Frame Size Std

Nominal Rpm High/Low Std

Fan Rpm Range Std

Motor Bearing Type Maximum Allowable Rpm Motor Pulley Pitch Diameter Min/Max (in.) Std

Nominal Motor Shaft Diameter (in.) Std

Fan Pulley Pitch Diameter (in.) Std

Belt, Quantity...Type...Length (in.) Std

Pulley Center Line Distance (in.) Std

Speed Change per Full Turn of

Movable Pulley Flange (rpm) Std

Movable Pulley Maximum Full Turns

From Closed Position Std

Factory Setting Std

Factory Speed Setting (rpm) Std

Fan Shaft Diameter at Pulley (in.)

HIGH-PRESSURE SWITCH (psig)

Standard Compressor Internal Relief (Differential) Cutout Reset (Auto.)

LOW-PRESSURE SWITCH (psig)

Cutout Reset (Auto.)

FREEZE-PROTECTION THERMOSTAT (F)

Opens Closes

OUTDOOR-AIR INLET SCREENS

Quantity...Size (in.)

RETURN-AIR FILTERS

Quantity...Size (in.)

Alt High-Static

LEGEND

Aluminum

Al —

Brake Horsepower

Bhp —

Copper

Cu —

*Evaporator coil fin material/condenser coil fin material. Contact your local representative

for details about coated fins.

71/

755 760 915 930 766 776 937 957 778 787 960 980

44 44 44 44 62 62 62 62

143 143 143 143

Reciprocating Reciprocating Reciprocating Scroll

2222 2222

42 ea 65 ea 54 ea 54 ea

81/

10 121/

R-22

4-13 6-14 7- 3 8-10 4-14 9- 2 7-13 8- 6

1...17 2...17 2...17 2...17

20.50 18.00 20.47 25.00

6400 6400 7000 7000

2...22 2...22 2...22 2...22

/4...1100

600 600 600 600

Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Acutrol™ Metering Device

3...15 3...15 3...15 4...15

8.0 8.0 10.0 11.1

1...15 x 15 1...15 x 15 1...15 x 15 1...15 x 15

1...15 x 15 — 1...15 x 15 1...15 x 15

1...15 x 15 1...15 x 15 1...15 x 15 — Belt Belt Belt Belt Belt — Belt Belt Belt Belt Belt —

3000 3100 4000 5000

2.40 2.40 2.40 3.70

2.40 — 2.90 5.25

3.70 3.70 5.25 — 56 56 56 56 56 — 56 56 56 56 56 — ———— ————

1725 1725 1725 1725 590- 840 685- 935 685- 935 860-1080 685- 935 — 835-1085 900-1260 860-1080 860-1080 830-1130 —

Ball Ball Ball Ball

2100 2100 2100 2100

2.4/3.4 2.8/3.8 2.8/3.8 4.0/5.0

2.8/3.8 — 3.4/4.4 3.1/4.1

4.0/5.0 4.0/5.0 2.8/3.8 —

7.0 7.0 7.0 8.0

7.0 — 7.0 5.9

8.0 8.0 5.8 —

1...A...49 1...A...49 1...A...49 1...A...52

1...A...49 — 1...A...49 1...BX...46

1...A...55 1...A...55 1...BX...46 —

16.75-19.25 16.75-19.25 15.85-17.50 15.85-17.50

15.75-19.25 — 15.85-17.50 15.85-17.50

15.75-19.25 16.75-19.25 15.85-17.50 — 50 50 50 44

50 — 50 50 60 60 60 —

5555 5—5 6 556— 5555 5—5 5

555— 590 685 685 860 685 — 835 960 860 860 887 —

1111

4...16 x 20 x 2 4...16 x 20 x 2 4...20 x 20 x 2 4...20 x 20 x 2

Enhanced Copper Tubes, Aluminum Lanced Fins

Propeller Type

/4...1100

Centrifugal Type

—

450 ± 50 500

428 428 320 320

7 ± 3

22 ± 7

30 ± 5 45 ± 5

Cleanable

1...20 x 25 x 1

1...16 x 25 x 1

Throwaway

/4...1100

†Weight of 14-in. roof curb.

NOTES:

1. The 50TFF units have a loss-of-charge switch located in the liquid line.

2. High-static motor not available on size 014 units.

—

Page 7

Step 5 — Make Electrical Connections

LEGEND

Fig. 8 — Power Wiring Connections

C —

Contactor Terminal Block

Connection

COMP(S) —

Compressor(s)

IFC —

Indoor (Evaporator) Fan Contactor

Splice Connection

NEC —

National Electrical Code

Field Wiring

TB —

Terminal Block Factory Wiring

50TFF008-014, 575-3-60

50TFF008-012, 208/230-3-60; 50TFF008-014, 460-3-60

50TFF014, 208/230-3-60

Unit cabinet must have an uninterrupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur. This ground may consist of electrical wire connected to unit ground lug in control compartment, or conduit approved for electrical ground when installed in accordance with NEC (National Electrical Code), ANSI/NFPA (American National Standards Institute/National Fire Protection Association), latest edition, and local electri cal codes. 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 transformer.

Refer to unit label diagram for additional information. Pig-

tails are provided for field wire connections.

When installing units, provide a disconnect per NEC. Use

copper conductors only when splice connectors are used. NOTE: When accessory thru-the-bottom connections are used,

refer to the accessory installation in structions for information on power wiring. Refer to Fig. 7 for drilling locations.

All field wiring must comply with NEC and local requirements. In Canada, electrical connections must be in accordance with CSA (Canadian Standards Association) C22.1 Canadian Electrical Code Part One.

Install field wiring as follows (see Fig. 8, 9, and 10):

1. Install conduit through side panel openings between disconnect and single point box (see Fig. 9 and 10).

2. Install power wires to terminal connections as shown in Fig. 8.

Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate (see Table 2). On 3-phase units, voltages between phases must be balanced within 2% and the current within 10%. Use the formula shown in the legend for Table 2, Note 2 to determine the percentage of voltage imbalance. Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause dam-

age to electrical components. (Such operation would invalidate any applicable Carrier warranty.)

FIELD CO NTROL WIRING — Install a Carrier-approved accessory thermostat assembly according to installation instructions included with the accessory. Locate thermostat assembly on a solid wall in the conditioned space to sense average temperature in accordance with thermostat installation instructions.

Route thermostat cable or equivalent single leads of colored wire from subbase terminals to low-voltage connections on unit (shown in Fig. 11) as described in Steps 1-5 below.

NOTE: For wire runs up to 50 ft, use no. 18 AWG (American Wire Gage) insulated wire (35 C minimum). For 50 to 75 ft, 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.

1. If unit is mounted on roof curb and accessory thru-thebottom connection is used, route wire through connector provided in accessory kit through the unit basepan.

2. Pass control wires through the hole provided on unit (see connection D, Connection Sizes T able, Fig. 7).

3. Feed wire through the ra ceway 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 (Underwriters’ Laboratories) clearance between the highand low-voltage wiring.

4. Connect thermostat wires to screw terminals of lowvoltage terminal board.

5. If unit is to be equipped with electric resistance hea t, ensure thermostat on a call for heat “W” energizes “G” output. This allows fan operation on a call for heat.

Page 8

Table 2 — Electrical Data

UNIT

50TFF

008

009

012

NOMINAL

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

VOLTAGE

RANGE

IFM

TYPE

Min Max RLA LRA Qty Hp FLA

Std

and

Alt

187 254 14.0 91.0 2

COMPRESSOR

(ea)

OFM

(ea)

/41.4

IFM

FLA

5.8

High 10.6

Std

and

Alt

414 508 6.4 42.0 2

/40.7

2.8

High 4.8

Std

and

Alt

518 632 5.2 39.0 2

/40.7

2.6

High 4.8

Std

187 254 16.0 137.0 2

/41.4

5.8

High 10.6

Std

414 508 8.3 69.0 2

/40.7

2.6

High 4.8

Std

518 632 6.4 58.0 2

/40.7

2.6

High 4.8

Std

Alt 7.5

187 254 15.8 130.0 2

/41.4

5.8

High 15.0

ELECTRIC

HEAT*

Nominal

kW**

— — 40.1/ 40.1 45/ 45 42/ 42

7.8/10.4 21.7/ 25.0 40.1/ 40.1 45/ 45 42/ 42

12.0/16.0 33.4/ 38.5 48.9/ 55.4 50/ 60 45/ 51

18.6/24.8 51.7/ 59.7 71.9/ 81.8 80/ 90|| 66/ 75

24.0/32.0 66.7/ 77.0 90.6/103.5 100/110|| 83/ 95

31.9/42.4 88.4/102.0 117.7/134.8 125/150|| 108/124 — — 44.9/ 44.9 50/ 50 48/ 48

7.8/10.4 21.7/ 25.0 44.9/ 44.9 50/ 50 48/ 48

12.0/16.0 33.4/ 38.5 54.9/ 61.4 60/ 70|| 51/ 56

18.6/24.8 51.7/ 59.7 77.9/ 87.8 80/ 90|| 72/ 81

24.0/32.0 66.7/ 77.0 96.6/109.5 100/110|| 89/101

31.9/42.4 88.4/102.0 123.7/140.8 125/150|| 114/129 — — 18.4 20 19

13.9 16.7 26.9 30 25

16.5 19.8 28.1 30 26

27.8 33.4 45.0 50 41

33.0 39.7 52.9 60 49

41.7 50.2 65.9 70|| 61 — — 20.6 25 22

13.9 16.7 26.9 30 25

16.5 19.8 30.8 35 28

27.8 33.4 47.8 50 44

33.0 39.7 55.6 60 51

41.7 50.2 68.7 70|| 63

FLA MCA MOCP†† FLA LRA

POWER SUPPLY

DISCONNECT

— — 14.9 20 16

34.0 34.1 45.3 50 42 — — 16.7 20 18

34.0 34.1 47.5 50 44 — — 44.6/ 44.6 50/ 50 47/ 47

7.8/10.4 21.7/ 25.0 44.6/ 44.6 50/ 50 47/ 47

12.0/16.0 33.4/ 38.5 48.9/ 55.4 50/ 60 47/ 51

18.6/24.8 51.7/ 59.7 71.9/ 81.8 80/ 90|| 66/ 75

24.0/32.0 66.7/ 77.0 90.6/103.5 100/110|| 83/ 95

31.9/42.4 88.4/102.0 117.7/134.8 125/150|| 108/124 — — 49.4/ 49.4 60/ 60 52/ 52

7.8/10.4 21.7/ 25.0 49.4/ 49.4 60/ 60 52/ 52

12.0/16.0 33.4/ 38.5 54.9/ 61.4 60/ 70|| 52/ 56

18.6/24.8 51.7/ 59.7 77.9/ 87.8 80/ 90|| 72/ 81

24.0/32.0 66.7/ 77.0 96.6/109.5 100/110|| 89/101

31.9/42.4 88.4/102.0 123.7/140.8 125/150|| 114/129 — — 22.7 25 24

13.9 16.7 24.1 25 24

16.5 19.8 28.1 30 26

27.8 33.4 45.0 50 41

33.0 39.7 52.9 60 49

41.7 50.2 65.9 70|| 61 — — 24.9 30 26

13.9 16.7 26.9 30 26

16.5 19.8 30.8 35 28

27.8 33.4 47.8 50 44

33.0 39.7 55.6 60 51

41.7 50.2 68.7 70|| 63 — — 17.6 20 18

34.0 34.1 45.3 50 42 — — 19.4 25 20

34.0 34.1 47.5 50 44 — — 44.2/ 44.2 50/ 50 46/ 46

7.8/10.4 21.7/ 25.0 44.2/ 44.2 50/ 50 45/ 45

12.0/16.0 33.4/ 38.5 48.9/ 55.4 60/ 60 45/ 51

24.0/32.0 66.7/ 77.0 90.6/103.5 100/110 83/ 95

31.9/42.4 88.4/102.0 117.7/134.8 125/150 108/124

37.5/50.0 104.2/120.3 137.5/157.6 150/175 127/147 — — 45.9/ 45.9 50/ 50 48/ 48

7.8/10.4 21.7/ 25.0 45.9/ 45.9 50/ 50 47/ 47

12.0/16.0 33.4/ 38.5 51.1/ 57.5 60/ 60 47/ 53

24.0/32.0 66.7/ 77.0 92.8/105.6 100/110 85/ 97

31.9/42.4 88.4/102.0 119.9/136.9 125/150 110/126

37.5/50.0 104.2/120.3 139.7/159.7 150/175 128/147 — — 53.4/ 53.4 50/ 50 57/ 57

7.8/10.4 21.7/ 25.0 53.4/ 53.4 60/ 60 56/ 56

12.0/16.0 33.4/ 38.5 60.4/ 66.9 60/ 80 56/ 62

24.0/32.0 66.7/ 77.0 102.1/115.0 110/125 94/106

31.9/42.4 88.4/102.0 129.2/146.3 150/150 119/135

37.5/50.0 104.2/120.3 149.0/169.0 150/175 137/156

SIZE†

229/229

273/273

138

130

9717.0 17.1 23.9 25 22

11417.0 17.1 26.1 30 24

321/321

365/365

161

184

13517.0 17.1 23.9 25 22

15217.0 17.1 26.1 30 24

307/307

326/326

374/374

Page 9

Table 2 — Electrical Data (cont)

VOLTAGE

UNIT

50TFF

NOMINAL

V-Ph-Hz

RANGE

IFM

TYPE

Min Max RLA LRA Qty Hp FLA

Std

460-3-60

012

Alt

414 508 7.9 64.0 2

High

Std

575-3-60

Alt 3.4

518 632 6.6 52.0 2

High 7.4

Std

208/230-3-60

187 254 23.0 146.0 2

Alt 15.0

014

460-3-60

Std

414 508 10.4 73.0 2

Alt 7.4

Std

575-3-60

518 632 8.3 58.4 2

Alt 7.4

See Legend and Notes on page 10.

COMPRESSOR

(ea)

OFM

(ea)

/40.7

/41.4

/40.7

ELECTRIC

IFM

FLA

2.6

3.4

7.4

2.6

10.6

4.8

HEAT*

Nominal

kW**

— — 21.8 25 23

16.5 19.8 28.1 30 26

27.8 33.4 45.0 50 41

33.0 39.7 52.9 60 49

41.7 50.2 65.9 70 61

50.0 60.1 63.4 70 72 — — 22.6 25 24

16.5 19.8 29.1 30 27

27.8 33.4 46.0 50 42

33.0 39.7 53.9 60 50

41.7 50.2 66.9 70 62

50.0 60.1 64.4 70 73 — — 26.6 30 28

16.5 19.8 34.1 35 31

27.8 33.4 51.0 60 47

33.0 39.7 58.9 60 54

41.7 50.2 71.9 80 66

50.0 60.1 69.4 80 78 — — 18.9 25 20

17.0 17.1 23.9 25 22

34.0 34.1 45.3 50 42

51.0 51.2 55.8 60 61 — — 19.7 25 21

17.0 17.1 24.7 25 23

34.0 34.1 46.1 50 42

51.0 51.2 54.6 60 62 — — 23.7 30 25

17.0 18.0 28.7 35 26

34.0 36.0 50.1 60 46

51.0 51.2 58.6 70 66 — — 65.2/ 65.2 80/ 80 68/ 68

7.8/10.4 21.7/ 25.0 65.2/ 65.2 80/ 80 68/ 68

12.0/16.0 33.4/ 38.5 65.2/ 65.2 70/ 70 68/ 68

24.0/32.0 66.7/ 77.0 96.6/109.5 100/110 89/101

31.9/42.4 88.4/102.0 123.7/140.8 125/150 114/129

37.5/50.0 104.2/120.3 143.5/163.6 150/175 132/151 — — 69.6/ 69.6 80/ 80 73/ 73

7.8/10.4 21.7/ 25.0 69.6/ 69.6 80/ 80 73/ 73

12.0/16.0 33.4/ 38.5 69.6/ 69.6 80/ 80 73/ 73

24.0/32.0 66.7/ 77.0 102.1/115.0 110/125 94/106

31.9/42.4 88.4/102.0 129.2/146.3 150/150 119/135

37.5/50.0 104.2/120.3 149.0/169.0 150/175 137/156 — — 29.6 40 31

16.5 19.8 30.8 40 31

27.8 33.4 47.8 50 44

33.0 39.7 55.6 60 51

41.7 50.2 68.7 70 63

50.0 60.1 66.1 80 75 — — 32.2 45 34

16.5 19.8 34.1 45 34

27.8 33.4 51.0 60 47

33.0 39.7 58.9 60 54

41.7 50.2 71.9 80 66

50.0 60.1 69.4 80 78 — — 23.6 30 25

17.0 17.1 26.1 30 25

34.0 34.1 47.5 50 44

51.0 51.2 56.0 60 53 — — 25.7 30 27

17.0 17.1 28.7 35 27

34.0 34.1 50.1 60 46

51.0 51.2 58.6 70 66

FLA MCA MOCP†† FLA LRA

POWER SUPPLY

DISCONNECT

SIZE†

152

191

185

126

152

160

383/383

406/406

192

203

153

162

Page 10

LEGEND AND NOTES FOR TABLE 2

LEGEND

FLA — HACR— IFM — LRA — MCA — MOCP— NEC — OFM — RLA —

*Heater capacity (kW) is based on heater voltage of 208 v, 240 v,

†Used to determine minimum disconnect size per NEC.

**Heaters are field installed only.

††Fuse or HACR circuit breaker.

||Fusing in single point box provides the required branch circuit

NOTES:

1. In compliance with NEC requirements for multimotor and com-

Full Load Amps Heating, Air Conditioning and Refrigeration Indoor (Evaporator) Fan Motor Locked Rotor Amps Minimum Circuit Amps Maximum Overcurrent Protection National Electrical Code Outdoor (Condenser) Fan Motor Rated Load Amps

480 v, and 600 v. Heaters are rated at 240 v, 480 v, or 600 v. If power distribution voltage to unit varies from rated heater voltage, heater kW will vary accordingly. To determine heater capacity at actual unit voltage, multiply 240 v, 480 v, or 600 v capacity by multipliers found in table below.

protection.

bination load equipment (refer to NEC Articles 430 and 440), the overcurrent protective device for the unit shall be fuse or HACR breaker. The Canadian units may be fuse or circuit breaker.

Unbalanced 3-Phase Supply Voltage

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

Use the following formula to determine

the percent of voltage imbalance.

% Voltage Imbalance

= 100 x

max voltage deviation from average voltage

average voltage

Determine maximum deviation from average voltage.

(AB) 457 – 452 = 5 v (BC) 464 – 457 = 7 v

(AC) 457 – 455 = 2 v Maximum deviation is 7 v. Determine percent of voltage imbalance. % Voltage Imbalance = 100 x

This amount of phase imbalance is satisfactory as it is below

= 1.53%

7 457

the maximum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2%, contact your local electric utility company immediately.

3. Determine heater capacity using multiplication factors table below:

HEATER

RATING

VO LTAGE

NOTE: The following equation converts kW of heat energy to Btuh: kW x 3.412 = Btuh.

EXAMPLE: 32.0 kW (at 240 v) heater on 208 v

200 208 230 240 380 440 460 480 550 575 600

0.694 0.751 0.918 1.000 — — — — — — —

240

— — — — 0.626 0.840 0.918 1.000 — — —

480

————————0.8400.9181.000

600

= 32.0 (.751 mult factor) = 24.0 kW capacity at 208 v

ACTUAL HEATER VOLTAGE

Example: Supply voltage is 460-3-60.

AB = 452 v BC = 464 v AC = 455 v

Average Voltage =

= 457

452 + 464 + 455

1371

Page 11

Fig. 9 — Conduit Installation

RACEWAY

HOLE IN END PANEL (HIDDEN)

Fig. 12 — Field Control Wiring Raceway

CONTROL WIRING

APOLLO CONTROL

WIRING TO THERMOST AT

COMPRESSOR NO. 2

COMPRESSOR NO. 1

Fig. 13 — Apollo Control Factory-Installed in

Typical Unit

DISCONNECT MOUNTING LOCATION

MAIN CONTROL BOX

EMT —

COMPRESSOR NO. 2

Electro-Metallic Tubing

EMT OR RIGID CONDUIT (FIELD SUPPLIED)

COMPRESSOR NO. 1

BRACKET AND CONDUIT DRIP BOOT

SINGLE POINT BOX

Fig. 10 — Typical Component Location

CENTER POST

SINGLE POINT BOX MOUNTING SCREW

Step 6 — Adjust Factory-Installed Options

APOLLO CONTROL — The optional Apollo control is used to actively monitor all modes of operation as well as indoor (evaporator) fan status, filter status, and indoor-air quality. The Apollo control is designed to work with Carrier TEMP and

VVT

systems.

The thermostat must be wired to the Apollo control before starting the unit. Refer to the Apollo control installation instructions for information on installing the thermostat. See Fig. 13 for Apollo location.

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

LEGEND

AHA — CC —

NOTE: Connect W2 when 2-stage accessory electric heaters are used.

Adjustable Heat Anticipator Cooling Compensator Field Wiring Factory Wiring

Fig. 11 — Low-Voltage Connections

Page 12

Assembly:

Fig. 14 — Damper Panel with Manual

Outdoor-Air Damper Installed

Fig. 15 — Outdoor-Air Hood Details

1. Determine quantity of ventilation required for building. Record amount for use in Step 8.

2. Remove filter access panel by raising panel and swinging panel outward. Panel is now disengaged from track and can be removed. No tools are required to remove the filter access panel. Remove outdoor-air opening panel. Save panels and screws. See Fig. 14.

3. Separate hood and screen from basepan by removing the screws and brackets securing them. Save all screws and discard brackets.

4. Replace outdoor air opening panel.

5. Place hood on front of outdoor air opening panel. See Fig. 15 for hood details. Secure top of hood with the 6 screws removed in Step 3. See Fig. 16.

6. Remove and save 8 screws (4 on each side) from sides of the manual outdoor-air damper.

7. Align screw holes on hood with screw holes on side of manual outdoor-air damper. See Fig. 15 and 16. Secure hood with 8 screws from Step 6.

8. Adjust minimum position setting of the damper blade by adjusting the manual outdoor-air adjustment screws on the front of the damper blade. See Fig. 14. Slide blade vertically until it is in the appropriate position determined by Fig. 17. Tighten screws.

9. Remove and save screws currently on sides of hood. Insert screen. Secure screen to hood using the screws. See Fig. 16.

10. Replace filter access panel. Ensure filter access panel slides along the tracks and is securely engaged.

OPTIONAL DURABLADE ECONOMIZER — The optional economizer hood assembly is packaged and shipped in the filter section. Damper blades and control boards are installed at the factory and the economizer is shipped in the vertical discharge position.

NOTE: Horizontal discharge block-off plate is shipped with the air hood package. If unit is to be used for vertical discharge application, discard this plate.

Assembly

1. Determine if ventilation air is required in building. If so, determine the minimum amount to be supplied by each unit and record quantity of ventilation air needed for use in Step 8.

2. Remove filter access panel by raising panel and swinging panel outward. Panel is now disengaged from track and can be removed. No tools are required to remove filter access panel. Remove outdoor-air opening panel. Save panels and screws. See Fig. 18. Remove optional economizer to allow outdoor-air damper hood package to be removed from filter section.

3. Assemble outdoor-air hood top and side plates as shown in Fig. 19. Install seal strips on hood top and sides. Put aside screen retainer and retainer screw for la ter assembly. Do not attach hood to unit at this time.

4. On 012 and 014 units, install vertical discharge block-off plate over duct openings. See Fig. 20.

5. Slide economizer into unit and secure with screws. See Fig. 21.

NOTE: Be sure to engage rear economizer flange under tabs in vertical return-air opening.

6. To convert to horizontal discharge application: a. Rotate the economizer 90 degrees until the

economizer motor faces the condenser section (see Fig. 22).

FILTER ACCESS PANEL

OUTDOOR AIR OPENING PANEL

SCREWS (SIDE)

MANUAL OUTDOOR-AIR ADJUSTMENT SCREWS

DAMPER BLADE

b. Remo ve retaining screw an d tape from barometric

damper and discard. Rotate the barometric relief damper hinge 90 degrees. Barometric relief damper must open vertically to operate properly.

c. Install horizontal discharge block-off plate over

the opening on the access panel. (Block-off plate MUST be installed before installing hood assembly.) See Fig. 23.

7. Remove existing 12-pin, blue and yellow wire jumper plug from factory wiring harness and save jumper. Insert economizer plug into 12-pin economizer harness. See Fig. 21.

8. If ventilation air is not required, proceed to Step 9. If ventilation air is required, determine the minimum position setting for required airflow . See Fig. 24. Adjust mi nimum position setting by adjusting the screws on the position setting bracket. See Fig. 25. Slide bracket until the top screw is in the position determined by Fig. 24. Tighten screws.

Page 13

SCREW

Fig. 19 — Outdoor-Air Hood Details

Fig. 20 — Vertical Discharge Block-Off Plate

(Sizes 012, 014 only)

HOLES (TOP)

HOOD

HOOD SCREEN LOCATION (SCREEN NOT SHOWN)

Fig. 16 — Damper with Hood Attached

Fig. 17 — Position Setting

FILTER ACCESS PANEL

BLOCK-OFF PANEL

OUTDOOR AIR OPENING PANEL

Fig. 18 — Access Panel Location

9. Remove tape from outdoor-air thermostat (OAT). Fasten OAT to inside of hood using screws and speed clips provided. See Fig. 26. Make sure OAT terminals are positioned up.

10. Replace outdoor-air opening panel using screws from Step 2. Replace filter acce ss panel. Ensure the filter a ccess panel slides along the tracks and is securely engaged.

11. Fasten hood top and side plate assembly to outdoor-air opening panel with screws provided.

12. Place knob supplied with economizer on OAT. See Fig. 26. Set for 3° F below indoor room thermostat setting. If accessory enthalpy control (EC) is used in place of OAT, see instructions shipped with EC for installation and adjustment. See Fig. 26.

13. Connect OAT per Fig. 27.

14. Slide outdoor-air inlet screen into screen track on hood side plate. While holding screen in place, fasten screen retainer to hood using screws provided.

NOTE: Refer to Fig. 28 for Durablade economizer barome tric relief damper characteristics.

Page 14

SHIPPING SCREW

Fig. 21 — Durablade Economizer Installed in Unit

ECONOMIZER CONTROL BOARD

EXAMPLE:

Given —

Negative Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . .0.1 in. wg

Outdoor Airflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1100 cfm

Determine —Setting = 6 in.

Fig. 24 — Durablade Economizer Damper

Minimum Position Setting

BAROMETRIC RELIEF DAMPER

ECONOMIZER MOTOR

ECONOMIZER MOUNTING SCREWS

Fig. 22 — Horizontal Durablade Economizer

Installation (90-Degree Rotation)

Fig. 25 — Durablade Economizer

Minimum Position Damper Setting

BLOCK-OFF PLATE

Fig. 23 — Horizontal Discharge Block-Off Plate

Page 15

TOP

Fig. 28 — Durablade Economizer Barometric Relief

Damper Characteristics

CONTROLLER

BAROMETRIC RELIEF DAMPERS

OUTDOOR AIR TEMPERATURE SENSOR

GEAR-DRIVEN DAMPER

ACTUATOR

ECONOMI$ER PLUG

Fig. 29 — EconoMi$er Assembly

ENTHALPY CONTROL

HOOD

OUTSIDE AIR SCREEN

OAT (TERMINALS ARE UP)

POSITION

MINIMUM

OPEN

RUSH

198818A

AT 24V

CW–SETPOINTS–CCW

DAMPER

OUTDOOR TEMP

60 65 70

OPEN

B A

3 mA

MIN. A

DAMPER

CLOSED

T 1

1 VDC

97-3672

REV

CONT

ACT RA

TINGS: 1.5A

RUN, 3.5A IN

CONT

OR UNPOWERED ST

A CTS SHO

WN IN HIGH ENTHALPY

A TE

UNIT

OPTIONAL ECONOMI$ER — See Fig. 29 for EconoMi$er component locations.

1. To remove the existing filter access panel, raise the panel and swing the bottom outward. The panel is now disengaged from the track and can be removed. Remove the indoor coil access panel and discard. See Fig. 30.

NOTE: If installing an optional Power Exhaust Assembly, refer to the EconoMi$er Power Exhaust Installation Instructions, then proceed to Step 6.

NOTE: The controller should be mounted in vertical position as shown in Fig. 29.

2. To assemble the hood assembly: Remove the

REV.B

ENTHALPY CONTROL

24V

TR1

EconoMi$er hood from its packaging. Locate the outdoor air opening panel. See Fig. 31. Remove hood assembly shipping brackets located on back (sloped) side of EconoMi$er assembly. These brackets are used to retain hood assembly during shipping only .

Fig. 26 — Outdoor-Air Thermostat/

Enthalpy Control Installation

Fig. 27 — Wiring Connections for

Outdoor-Air Thermostat

Page 16

Fig. 34 — Return Air Block-Off Plate Installation

Fig. 33 — Completed Hood Assembly

3. Ins tall the top panel. Install the

/4 x 3/4 in. seal strip on the exhaust air hood

/8 x 7/8 in. seal strip on the exhaust air hood side panels and bottom brackets. Assemble the exhaust air hood to the outdoor air opening panel as shown in Fig. 31, using the screws provided. Do not at-

tach hood assembly to unit at this time.

4. Install th e

/8 x 7/8 in. seal strip on the outdoor air hood top and side panels. Assemble the outdoor air hood to the outdoor air opening panel as shown in Fig. 32, using the screws provided. Do not attach hood assembly to the uni t

as this ti me .

5. Slide the outdoor air inlet screens into the screen track on the hood side panels. While holding the screens in place, fasten the screen retainer to the hood using the screws provided. Repeat the process for the barometric exhaust air screen. Do not attach hood assembly (Fig. 33) to unit

at this time.

6. For size 008 and 009 units, re move the factory-installed block-off plate. See Fig. 34.

FILTER ACCESS PANEL

INSTALL RETURN AIR BLOCK-OFF PLATE

BLOWER

FILTER

INDOOR COIL ACCESS PANEL

Fig. 30 — Typical Access Panel Locations

3/4 x 3/4 IN.

OUTDOOR AIR OPENING PANEL

1/8 x 7/8 IN.

SEAL STRIP

EXHAUST AIR BOTTOM BRACKET

SEAL STRIP

EXHAUST AIR SCREEN

Fig. 31 — Exhaust Air Hood Assembly

OUTDOOR AIR OPENING PANEL

ASSEMBLED EXHAUST HOOD

1/8 x 7/8 IN. SEAL STRIP

OUTDOOR AIR HOOD SIDES

Fig. 32 — Outdoor Air Hood Assembly

EXHAUST AIR HOOD TOP

SCREEN RETAINER

EXHAUST AIR HOOD SIDES

OUTDOOR AIR HOOD TOP

SCREEN RETAINER

OUTDOOR AIR INLET SCREENS

REMOVE FACTORY INSTALLED BLOCK-OFF PLATE (SIZE 008 AND 009 UNITS ONLY)

7. Slide the EconoMi$er assembly into the rooftop unit. See Fig. 35 and 36.

NOTE: Be sure to engage rear EconoMi$er flange under tabs in return air opening of the unit base. See Fig. 35.

8. Install the outdoor air block-off plate, then secure the EconoMi$er with the screws provided. See Fig. 36.

9. Remove and store the jumper plug from the unit wiring harness located in the upper left corner and insert the EconoMi$er plug into the unit wiring harness. See Fig. 37.

NOTE: If optional power exhaust is being installed, complete installation of power exhaust at this time. See Fig. 38 for wiring.

10. Install the complete hood assembly on the unit and secure using the screws provided.

11. Remove the indoor fan motor access panel.

12. Mount the supply air temperature sensor to the lower left portion of the indoor blower housing with the two (2) screws provided (see Fig. 39). Connect the violet and pink wires to the corresponding connections on the supply air temperature sensor. Replace the indoor fan motor access panel.

Control Set Up — If a CO2 sensor is not being used, pro-

ceed to the next section. If a CO2 sensor is being used, perform the following:

1. Determine the value at which you want the minimum position of the dampers to begin opening to all ow a greater amount of outdoor air to enter. The range is 800 to 1,400 ppm.

2. Locate the CO

SP (PPM) potentiometer and adjust to the

desired set point. See Fig. 40.

Page 17

UNIT FILTER

WIRING HARNESS

OUTDOOR AIR BLOCK-OFF PLATE

RACK

ECONOMIZER CLIP HVAC UNIT

UNIT BASE

ECONOMIZER

ECONOMIZER REAR FLANGE

Fig. 35 — Rear EconoMi$er Flange Installation

Fig. 36 — EconoMi$er Installed in Unit

LEGEND

Outdoor-Air Thermostat

OAT —

Fig. 37 — EconoMi$er Wiring

Page 18

POWER EXHAUST SYSTEM (HIGH VOLTAGE)

RED

(575 VAC)

HT01AH859

SECONDARY

HANDY BOX

230VAC

2 x 4 IN.

TO FUSED

DISCONNECT

GRAY

BLACK L1 BLUE L2

GREEN GND

RED YELH1BLU

(460 VAC)

HT01AH850

SECONDARY

COMPRESSOR 1

CONTACTOR

11 21

CONNECTOR

GND

230 VAC

1 PHASE

230VAC

4-PIN

PLUG

GREEN

GRAY

BLACK

BLUE

CAPACITOR 2 CAPACITOR 1

RELAY 2 RELAY 1

FIELD SUPPLIED WIRING

BROWN

GREEN/ YELLOW

BROWN

GREEN/ YELLOW

FAN 1

FAN 2

4-PIN CONNECTOR PLUG (HIGH VOLTAGE)

BLACK

LT. BLUE

BLACK

BLUE

BLACK

LT. BLUE

BLACK

FAN 1

BLUE

FAN 2

3-PIN CONNECTOR PLUG (LOW VOLTAGE)

24 VAC

3-PIN

CONNECTOR

PLUG

ORANGE

YELLOW

BROWN

1 2 3

Fig. 38 — Wiring Diagram for Power Exhaust System

SUPPLY AIR TEMPERATURE SENSOR MOUNTING LOCATION

SUPPLY AIR TEMPERATURE SENSOR

Fig. 39 — Supply Air Sensor Placement

Page 19

Mechanical Cooling Lockout

Fig. 41 — Enthalpy Settings for

EconoMi$er Economizer

CONTROL

CURVE

CONTROL POINT

F (C) APPROX

AT 50% RH

A 73 [23] B 70 [21] C 57 [19] D 53 [17]

200

400

600 800 1000

1200

1400 1600

FLOW (CUBIC FEET/MINUTE)

0.5

0.4

0.3

0.2

0.1 0

STATIC PRESSURE (IN. WG)

Fig. 42 — Barometric Relief Capacity

Fig. 40 — EconoMi$er Control Adjustment

Potentiometers (Factory Settings)

— Determine the outdoor-air temperature at which you want the mechanical cooling (compressors) to be disabled. Locate the mechanical cooling lockout (MECH CLG LOCKOUT) potentiometer. To disable this feature, turn the potentiometer counterclockwise (CCW) to the OFF position. Otherwise, set the value between 10 and 60 F. Mechanical cooling will not operate when the outdoor-air temperature is below this value. See Fig. 40.

Dry Bulb Changeover Set Up

— Determine the dry bulb changeover set point from T able 3. The settings are A, B, C and D. Locate the ECON SP potentiometer and set the dry bulb changeover set point. See Fig. 40. When the OAT is above this set point, the damper is limited t o minimum position setting.

Table 3 — Changeover Set Points

SETTINGS A B C D Dry Bulb (°F) Single Enthalpy* (Btu/lb) Differential Temperature*

(°F , Not Adjustable) Differential Enthalpy*

(Btu/lb, Not Adjustable)

*Field-installed accessory.

If a potentiometer fails, its setting will default to the values

in T able 4.

Table 4 — Default Potentiometer Settin

POTENTIOMETER DEFAULT SETTING

SP (PPM)

MECH CLG LOCKOUT ECON SP MIN POS (%)

6. See Fig. 41 for enthalpy changeover set point.

7. See Fig. 42 for barometric relief damper characteristics.

73 69 66 63 27 25 24 22

2222 1111

1,000

47°

Ventilation Air (Minimum Position Set Up ) air is not required, proceed to Step 5. If ventilation air is required, perform the following:

1. The indoor fan must be on to set the ventilation air. Either put the thermostat in the continuous fan mode or jumper the R and G terminals at the rooftop unit connection board.

2. Locate the minimum positio n (MIN POS) po tentiometer. Turn the potentiometer full CCW to fully clo se the outdoor air dampers. Turn the potentiometer gradually clockwise (CW) to the desired position. See Fig. 40.

3. Replace the filter access panel. See Fig. 30. Ensure the filter access panel slides along the tracks and is securely engaged.

4. Calculate the minimum airflow across the EconoMi$er.

a. Calculate % of outside air using the following

formula. % Outdoor air through EconoMi$er

% Outdoor air =

b. Divide total CFM by percentage outdoor air, this

gives outdoor air volume in CFM.

5. Turn on base unit power. NOTE: The EconoMi$er begins operation 15 minutes

after power up.

— If ventilation

Mixture Temp – Return Air Temp Outdoor T emp – Return Air Temp

Personal Injury Hazard. Avoid possible injury by keeping fingers away from damper blades.

Page 20

Step 7 — Adjust Evaporator-Fan Speed —

Fig. 44 — Typical Belt-Drive Motor

Mounting for Sizes 012,014

Fig. 45 — Evaporator-Fan Pulley Adjustment

Ad-

just evaporator-fan speed to meet jobsite requirements.

Table 5 shows fan rpm at motor pulley settings, Table 6 shows motor efficiencies and Table 7 gives accessory static pressure drops. Table 8 shows motor performance. Refer to Tables 9-20 to determine fan speed settings. Fan motor pulleys are factory set for speed shown in Table 1.

T o change fan speed:

1. Shut off unit power supply and install lockout tag.

2. Loosen belt by loosening fan motor mounting plate nuts (see Fig. 43 and 44).

3. Loosen movable pulley flange setscrew (see Fig. 45).

4. Screw movable flange toward fixed flange to increase speed and away from fixed flange to decrease fan speed. Increasing fan speed increases load on motor. Do not exceed maximum speed specified in Table 1.

5. Set movable flange at nearest flat of pulley hub and tighten setscrew (see Table 1 for speed change for each full turn of pulley flange).

T o align fan and motor pulleys:

1. Loosen fan pulley setscrews.

2. Slide fan pulley along fan shaft.

3. Make angular alignment by loosening motor from mounting plate.

T o adjust belt tension (see Fig. 43 and 44):

1. Loosen fan motor mounting plate nuts.

2. Units 008,009 — Slide motor mounting plate away from fan scroll for proper belt tension (

/2-in. deflection with 8 to 10 lbs of force) and tighten mounting nuts (see Fig. 43).

Units 012,014 — Slide motor mounting plate downward to tighten belt tension (

/2-in. deflection with 5 to 10 lbs

of force). Secure motor mounting plate nuts. See Fig. 44.

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

4. Check pulley alignment and realign pulleys if necessary.

MOTOR MOUNTING

PLATE NUTS

Fig. 43 — Typical Belt-Drive Motor

Mounting for Sizes 008,009

Page 21

Table 5 — Fan Rpm at Motor Pulley Settings*

UNIT

50TFF

008† 840 815 790 765 740 715 690 665 635 615 590 — — 008** 935 910 885 860 835 810 785 760 735 710 685 — — 008†† 1080 1025 1007 988 970 952 933 915 897 878 860 — — 009† 935 910 885 860 835 810 785 760 735 710 685 — — 009†† 1080 1025 1007 988 970 952 933 915 897 878 860 — — 012† 935 910 885 860 835 810 785 760 735 710 685 — — 012|| 1085 1060 1035 1010 985 960 935 910 885 860 835 — — 012†† 1130 1112 1087 1062 1037 1012 987 962 937 912 887 862 830 014† 1080 1060 1035 1015 990 970 950 925 905 880 860 — — 014|| 1260 1220 1185 1155 1130 1100 1075 1045 1015 990 960 930 900

*Approximate fan rpm shown. †Indicates standard motor and drive package.

**Indicates alternate drive package only.

††Indicates high-static motor and drive package.

||Indicates alternate motor and drive package.

MOTOR PULLEY TURNS OPEN

Table 6 — Evaporator-Fan Motor Efficiency

MOTOR EFFICIENCY (%)

50TFF008-012

50TFF014

NOTE: Convert bhp to watts using the following formula: watts =

bhp (746)

motor efficiency

80 87

Table 7 — Accessory Static/FIOP Pressure* (in. wg) 50TFF008-014

COMPONENT

1 Heater Module 0.02 0.03 0.05 0.07 0.08 0.10 0.12 0.14 0.16 2 Heater Modules 0.03 0.05 0.07 0.09 0.12 0.14 0.16 0.19 0.21 Durablade Economizer 0.02 0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 EconoMi$er 0.07 0.09 0.13 0.18 0.23 0.30 0.36 — —

LEGEND FIOP — Factory-Installed Option

*The static pressure must be added to extern al static pressure. The sum and the evaporator entering-air c fm should then be used in conjunction with the Fan Perfor-

mance tables to determine blower rpm and watts.

2250 2500 3000 3500 4000 4500 5000 5500 6000

CFM

6250

0.17

0.20

0.09 —

Table 8 — Motor Data

UNIT

50TFF

008

009

012

014

BHP — Brake Horsepower

*Extensive motor and el ectrical testing on th ese units ensures t hat the full horsepower range of the motors can be utilized with confiden ce. Using your fan motors up to the horsepower ratings shown in this table will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

EVAPORATOR-FAN

LEGEND

MOTOR

Standard,

Alternate

High Static

Standard

High Static

Standard

Alternate

High Static

Standard

Alternate

UNIT

VOLTAGE

208/230

460 3.0 575 3.0

208/230

460 5.5 575 5.5

208/230

460 3.0 575 3.0

208/230

460 5.5 575 5.5

208/230

460 3.0 575 3.0

208/230

460 3.9 575 3.9

208/230

460 8.5 575 8.5

208/230

460 5.5 575 5.5

208/230

460 8.5 575 8.5

MAXIMUM ACCEPTABLE

CONTINUOUS BHP*

2.40 2120

3.70 3313

2.40 2120

3.70 3313

2.40 2120

2.90 2615

5.25 4400

3.70 3313

5.25 4400

NOTES:

1. All indoor-fan motors 5 hp and larger meet the minimum efficiency requirements as esta blished by the Energy Policy Act of 1992 (EPACT) effective October 24, 1997.

2. High-static motor not available on single-phase units.

MAXIMUM ACCEPTABLE

OPERATING WATTS

MAXIMUM

AMP DRAW

6.7

12.2

6.7

12.2

6.7

8.6

17.3

12.2

17.3

Page 22

Table 9 — Fan Performance, 50TFF008 Standard Motor and Drive and Alternate Drive —

Vertical Discharge Units

50TFF008 (7

Airflow

(Cfm)

2250 511 0.52 539 2300 518 0.55 562 2400 534 0.61 607 2500 549 0.67 653 2550 557 0.71 684 2600 565 0.74 708 2700 581 0.81 763 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750

50TFF008 (7 (BEL T D RIVE) (cont )

Airflow

(Cfm)

2250 2300 2400 2500 2550 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750

Bhp — FIOP — Watts —

*Standard motor drive range: 590 to 840 rpm. Alternate motor drive

range: 685 to 935 rpm. All other rpms require field-supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

/2 TONS)* — ST ANDARD MOTOR AND DRIVE AND ALTERNATE DRIVE (BELT DRIVE)

External Static Pressure (in. wg)

0.2 0.4 0.6 0.8 1.0 1.2

Rpm Bhp Watts Rpm B hp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm B hp Watts Rp m Bhp Watts

592 0.74 708 659 0.95 875 722 1.19 1072 778 1.43 1275 829 1.68 1491 599 0.77 731 665 0.98 899 727 1.22 1097 783 1.47 1310 834 1.72 1526 613 0.84 787 677 1.06 965 738 1.30 1165 794 1.55 1378 844 1.81 1604 627 0.90 835 690 1.14 1031 750 1.38 123 3 805 1.64 1456 855 1.91 1691 633 0.94 867 697 1.18 1064 756 1.42 126 7 811 1.69 1499 861 1.96 1735 639 0.97 891 703 1.22 1097 761 1.46 130 1 816 1.74 1543 866 2.01 1779

597 0.89 827 665 1.12 1014 733 1.40 1250 786 1.66 1473 839 1.93 1709 889 2.23 1971 613 0.97 891 679 1.20 1081 745 1.50 1335 799 1.76 1560 850 2.04 1805 900 2.34 2067 629 1.06 965 694 1.29 1156 759 1.59 1413 812 1.88 1665 862 2.15 1901 646 1.15 1039 709 1.39 1241 772 1.70 1508 825 1.99 176 1 875 2.28 2015 662 1.25 1123 724 1.50 1335 785 1.80 1595 840 2.11 186 6 679 1.35 1207 740 1.61 1430 798 1.91 1691 854 2.24 198 0 696 1.46 1301 756 1.73 1534 811 2.02 1788 868 2.37 209 3 712 1.57 1396 771 1.85 1639 824 2.14 1892 729 1.69 1499 787 1.98 1753 839 2.21 2006 746 1.85 1613 803 2.12 1875 755 1.89 1674 811 2.20 1945

/2 TONS)* — ST AND ARD MOT OR AND DRIVE AND AL T ERNA TE DRIVE

1.4 1.6 1.8 2.0

Rpm Bhp Watts R pm Bhp Watts Rpm B hp Watts Rpm Bhp Watts

884 1.97 1744 885 2.00 1770 892 2.08 1840 902 2.18 1927 908 2.24 1980 913 2.29 2023 924 2.40 2120 935 2.52 2223 978 2.62 2479 1019 3.13 2735 1061 3.47 3002 946 2.65 2335 989 2.96 2595 1030 3.27 2847 — — — 957 2.78 2445 1000 3.09 2702 1040 3.41 2956 — — — 968 2.91 2554 1011 3.24 2832 — — — — — — 980 3.04 2661 1022 3.38 2933 — — — — — —

991 3.18 2775 — — — — — — — — — 1003 3.32 2886 — — — — — — — — — 1014 3.48 3009 — — — — — — — — —

—— — —— — —— — —— —

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

652 1.04 948 717 1.31 1173 773 1.55 137 8 827 1.83 1621 878 2.12 1875

854 2.42 2136 907 2.78 2445 956 3.15 2751 997 3.49 3017 862 2.49 2197 914 2.85 2504 963 3.23 2815 — — —

External Static Pressure (in. wg)

937 2.33 2058 939 2.36 2084 944 2.40 2119

949 2.48 2188 1002 2.84 2495 1041 3.25 2831 953 2.53 2232 1003 2.87 2521 1045 3.28 2854 957 2.58 2275 1004 2.91 2554 1050 3.31 2878 967 2.70 2377 1010 3.01 2637 1056 3.37 2925

947 2.66 2343 1022 3.10 2710 979 2.69 2369 1025 3.12 2727 987 2.76 2428 1039 3.20 2791

911 2.46 2171

887 2.41 2128 934 2.71 2386 900 2.54 2240 946 2.85 2504

881 2.50 2206 928 2.84 2495 971 3.16 2759 894 2.64 2326 942 2.99 2620 984 3.22 2886

3. Maximum usable watts input is 2120 and maximum continuous bhp is 2.40. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. For additional information on motor performance refer to Table 8.

4. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permissible. Do not extrapolate.

914 2.69 2369 959 3.00 2629

923 2.58 2275

Page 23

Table 10 — Fan Performance, 50TFF008 High-Static Motor — Vertical Discharge Units

50TFF008 (7

Airflow

(Cfm)

2250 514 0.55 562 593 0.76 723 662 0.99 907 724 1.22 1097 781 1.48 1318 2300 521 0.57 577 600 0.79 747 668 1.02 932 730 1.26 1131 786 1.50 1335 2400 536 0.63 623 613 0.85 795 680 1.09 989 741 1.34 1199 796 1.59 1413 2500 551 0.69 669 626 0.93 859 693 1.17 1056 753 1.43 1275 808 1.69 1499 2550 559 0.72 692 634 0.97 891 700 1.21 1089 759 1.48 1318 814 1.74 1543 2600 567 0.75 716 641 1.00 916 706 1.25 1123 764 1.52 1353 819 1.79 1587 2700 582 0.83 779 655 1.08 981 719 1.34 1199 776 1.61 1430 831 1.89 1674 2800 598 0.90 835 670 1.17 1056 732 1.43 1275 789 1.71 1617 842 2.00 1770 2900 614 0.98 899 684 1.25 1123 745 1.53 1361 802 1.81 1604 854 2.11 1866 3000 630 1.07 973 699 1.35 1207 759 1.63 1147 815 1.92 1700 3100 646 1.16 1047 714 1.45 1292 773 1.74 1543 828 2.04 1805 3200 662 1.28 1131 729 1.55 1378 787 1.86 1648 841 2.16 1910 3300 679 1.36 1216 744 1.66 1473 801 1.98 1753 854 2.29 2023 3400 695 1.47 1310 759 1.78 1578 816 2.10 1868 3500 712 1.59 1413 774 1.90 1683 830 2.23 1971 3600 729 1.71 1617 790 2.03 1796 845 2.37 2093 3700 745 1.84 1630 805 2.17 1919 860 2.52 2223 3750 754 1.91 1691 813 2.24 1980

50TFF008 (7

Airflow

(Cfm)

2250 841 1.81 1604 2300 843 1.83 1621 2400 848 1.88 1665 2500 859 1.96 1735 2550 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750

Bhp — FIOP — Watts —

*Motor drive range: 860 to 1080 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

/2 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

External Static Pressure (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

866 2.23 1971 878 2.35 2076 891 2.48 2188

867 2.42 2136 917 2.75 2420 881 2.56 2257 930 2.90 2546 895 2.71 2386 943 3.05 2670

868 2.59 2283 917 2.95 2587 963 3.30 2870

/2 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

External Static Pressure (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

902 2.25 1989 939 2.60 2292 979 2.94 2589 1015 3.29 2892 905 2.28 2015 943 2.52 2309 983 2.96 2609 1020 3.31 2914 910 2.31 2041 952 2.74 2411 992 3.10 2729 1029 3.46 3048

864 2.01 1779 915 2.34 2067 968 2.81 2479 1009 3.18 2798 1047 3.55 3126 869 2.06 1823 918 2.37 2093 973 2.81 2487 1014 3.18 2798 1052 3.55 3126 880 2.17 1919 927 2.47 2180 976 2.84 2495 1017 3.21 2828 1055 3.59 3159 892 2.29 2023 938 2.58 2275 983 2.92 2562 1024 3.30 2908 1063 3.69 3248 903 2.42 2136 949 2.71 2386 993 3.03 2653 1035 3.43 3017 915 2.54 2240 961 2.85 2504 1003 3.17 2767 1045 3.59 3157 926 2.67 2352 972 3.00 2629 1015 3.32 2886 938 2.81 2470 983 3.14 2743 1026 3.47 3002 950 2.95 2587 995 3.30 2870 963 3.10 2710 1007 3.45 2987 976 3.25 2831

988 3.41 2956 1019 3.90 3431 — — — — — — — — — — — — 1026 4.00 3517 — — — — — — — — — — — —

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

912 2.31 2050 963 2.81 2470 1004 3.18 2798 1041 3.55 3126

1043 3.80 3341 — — — — — —

1030 3.82 3362 — — — — — — — — — 1043 4.01 3528 — — — — — — — — —

1055 3.97 3493 — — — — — —

3. Values include losses for filters, unit casings, and wet coils. See Table 7 for accessory/FIOP static pressure information.

4. Maximum continuous bhp is 3.7 and the maximum continuous watts are 3313. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. See Table 8 for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permissible. Do not extrapolate.

909 2.87 2521 956 3.22 2807

1058 3.76 3306 1097 4.20 3693 1069 3.93 3456 — — —

904 2.61 2300

1074 3.83 3370 1084 4.01 3526

Page 24

Table 11 — Fan Performance, 50TFF009 Standard Motor — Vertical Discharge Units

50TFF009 (8 TONS)* — STANDARD MOTOR (BELT DRIVE)

Airflow

(Cfm)

2550 557 0.71 684 633 0.94 867 2600 565 0.74 708 639 0.97 891 2700 581 0.81 763 652 1.04 948 2800 597 0.89 827 665 1.12 1014 2900 613 0.97 891 679 1.20 1081 3000 629 1.06 965 3100 646 1.15 1039 3200 662 1.25 1123 3300 679 1.35 1207 3400 3500 3600 3700 3750 3800 3900 4000 4100 4200 4250

50TFF009 (8 TONS)* — STANDARD MOTOR (BELT DRIVE) (cont)

Airflow

(Cfm)

Bhp — FIOP — Watts —

*Motor drive range: 685 to 935 rpm. All other rpms require field-

supplied drive.

NOTES:

2. indicates field-supplied motor and drive are required.

Rpm Bhp Watts Rpm B hp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm B hp Watts Rp m Bhp Watts

2550 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750 3800 3900 4000 4100 4200 4250

Boldface

0.2 0.4 0.6 0.8 1.0 1.2

694 1.29 1156 759 1.59 1413 812 1.88 1665 862 2.15 1901 709 1.39 1241 772 1.70 1508 825 1.99 1761 875 2.28 2015 724 1.50 1335 785 1.80 1595 840 2.11 1866

696 1.46 1301 756 1.73 1534 811 2.02 1788 868 2.37 209 3 712 1.57 1396 771 1.85 1639 824 2.14 1892 729 1.69 1499 787 1.98 1753 839 2.27 2006 746 1.82 1613 803 2.12 1875 755 1.89 1674 811 2.20 1945 763 1.95 1726 819 2.27 2006 780 2.09 1849 796 2.23 1971 813 2.39 2110 830 2.55 2249 883 2.91 2554 931 3.24 2823 — — — — — — — — — 839 2.63 2317 892 3.00 2629 939 3.34 2902 — — — — — — — — —

1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

908 2.24 1980 913 2.29 2023 924 2.40 2120 935 2.52 2223 978 2.62 2479 1019 3.13 2735 1061 3.41 3002 946 2.65 2335 989 2.96 2595 1030 3.27 2847 — — — 957 2.78 2445 1000 3.09 2702 1040 3.41 2956 — — — 968 2.91 2554 1011 3.24 2832 — — — — — — 980 3.04 2661 1022 3.38 2933 — — — — — —

991 3.18 2775 — — — — — — — — — 1003 3.52 2886 — — — — — — — — — 1014 3.48 3009 — — — — — — — — —

———————————— ———————————— ———————————— ———————————— ———————————— ———————————— ———————————— ———————————— ————————————

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

740 1.61 1430 798 1.91 1691 854 2.24 1980

835 2.42 2136 884 2.72 2394 933 3.07 2686 983 3.48 3009 — — — 851 2.56 2257 900 2.89 2537 946 3.23 2815 — — — — — — 867 2.74 2411 915 3.06 2678 960 3.40 2948 — — — — — —

External Static Pressure (in. wg)

953 2.53 2232 1003 2.87 2521 1045 3.28 2854 957 2.58 2275 1004 2.91 2554 1050 3.31 2878 967 2.70 2377 1010 3.01 2637 1056 3.37 2925

External Static Pressure (in. wg)

697 1.18 1064 756 1.42 1267 811 1.69 1499 861 1.96 1735 703 1.22 1097 761 1.46 1301 816 1.74 1543 866 2.01 1779 717 1.31 1173 773 1.55 1378 827 1.83 1621 878 2.12 1875 733 1.40 1250 786 1.66 1473 839 1.93 1709 889 2.23 1971 745 1.50 1335 799 1.76 1560 850 2.04 1805 900 2.34 2067

854 2.42 2136 907 2.78 2445 956 3.15 2751 997 3.49 3017 862 2.49 2197 914 2.85 2504 963 3.23 2815 — — — 869 2.56 2257 920 2.92 2562 970 3.31 2878 — — —

911 2.46 2171

887 2.41 2128 934 2.71 2386 900 2.54 2240 946 2.85 2504

881 2.50 2206 928 2.84 2495 971 3.16 2759 894 2.64 2326 942 2.99 2620 984 3.32 2886

4. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

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

6. Interpolation is permissible. Do not extrapolate.

914 2.69 2369 959 3.00 2629

923 2.58 2275

Page 25

Table 12 — Fan Performance, 50TFF009 High-Static Motor — Vertical Discharge Units

50TFF009 (8

Airflow

(Cfm)

2550 559 0.72 692 634 0.97 891 700 1.21 1089 759 1.48 1318 814 1.74 1543 2600 567 0.76 716 641 1.00 916 706 1.25 1123 764 1.52 1353 819 1.79 1587 2700 582 0.83 779 655 1.08 981 719 1.34 1199 776 1.61 1430 831 1.89 1674 2800 598 0.90 835 670 1.17 1056 732 1.43 1275 789 1.71 1517 842 2.00 1770 2900 614 0.98 899 684 1.25 1123 745 1.53 1361 802 1.81 1604 854 2.11 1866 3000 630 1.07 973 690 1.35 1207 759 1.63 1147 816 1.92 1700 3100 646 1.16 1047 714 1.45 1292 773 1.74 1543 828 2.04 1805 3200 662 1.26 1131 729 1.55 1378 787 1.86 1648 841 2.16 1910 3300 679 1.36 1216 744 1.66 1473 801 1.98 1753 854 2.29 2023 3400 695 1.47 1310 759 1.78 1578 816 2.10 1958 3500 712 1.59 1413 774 1.90 1683 830 2.23 1971 3600 729 1.71 1517 790 2.03 1796 845 2.37 2093 3700 745 1.84 1630 805 2.17 1919 860 2.52 2223 3750 754 1.91 1691 813 2.24 1980 3800 762 1.98 1753 821 2.31 2041 3900 779 2.12 1875 836 2.46 2171 4000 796 2.27 2006 852 2.61 2300 4100 813 2.42 2136 4200 830 2.59 2283 4250 839 2.68 2360

50TFF009 (8

Airflow

(Cfm)

2550 2600 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750 3800 3900 4000 4100 4200 4250

Bhp — FIOP — Watts —

*Motor drive range: 860 to 1080 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

/2 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

External Static Pressure (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

866 2.23 1971 878 2.35 2076 891 2.48 2188

867 2.42 2136 917 2.75 2420 881 2.56 2257 930 2.90 2546 895 2.71 2386 943 3.05 2670

868 2.59 2283 917 2.95 2587 963 3.30 2870 875 2.66 2343 924 3.03 2653 970 3.38 2933 890 2.82 2479 938 3.19 2783 981 3.65 3209

868 2.78 2445 920 3.15 2751 884 2.95 2587 935 3.33 2894 890 3.04 2661

/2 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

864 2.01 1779 915 2.34 2067 968 2.81 2479 991 3.02 2654 1012 3.21 2827 869 2.06 1823 918 2.37 2093 973 2.81 2487 996 3.02 2654 1017 3.21 2827 880 2.17 1919 927 2.47 2180 976 2.84 2495 999 3.05 2682 1021 3.25 2857 892 2.29 2023 938 2.58 2275 983 2.92 2562 1006 3.13 2758 1028 3.34 2938 903 2.42 2136 949 2.71 2386 993 3.03 2653 1017 3.25 2862 1038 3.46 3048 915 2.54 2240 961 2.85 2504 1003 3.17 2767 1027 3.40 2994 1049 3.62 3189 926 2.67 2352 972 3.00 2629 1016 3.32 2886 1040 3.56 3136 938 2.81 2470 983 3.14 2743 1026 3.47 3002 950 2.95 2587 995 3.30 2870 1022 3.58 3146 963 3.10 2710 1007 3.45 2987 976 3.25 2831 1007 3.56 3137 988 3.41 2956 992 3.59 3161

999 3.68 3240 1006 3.77 3318 1038 4.14 3640 — — — — — — — — — 1017 4.07 3580 — — — — — — — — — — — —

—— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— —

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

1019 3.74 3292 1047 4.05 3566 — — — — — — 1023 3.94 3467 — — — — — — — — — 1030 4.04 3554 — — — — — — — — —

905 2.98 2612 953 3.37 2925

965 3.88 3412 — — — — — —

External Static Pressure (in. wg)

1034 3.74 3289 1059 4.01 3530 — — — 1034 3.85 3399 1058 4.15 3648 — — —

3. Values include losses for filters, unit casings, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permissible. Do not extrapolate.

909 2.87 2521 956 3.22 2807

974 3.74 3294 — — — 990 3.96 3482 — — —

1050 3.72 3277 1073 3.97 3491 1046 3.84 3377 1069 4.09 3597

904 2.61 2300

996 3.85 3390

1062 3.80 3340

Page 26

Table 13 — Fan Performance, 50TFF012 — Vertical Discharge Units

50TFF012 (10 TONS)*

Airflow

(Cfm 3000

3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000

50TFF012 (10 TONS)* (cont)

Airflow

(Cfm)

3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 983 2.91 2624 1021 3.11 2810 1060 3.34 3029 1090 3.51 3276 4300 994 3.05 2754 1031 3.25 2943 1068 3.48 3166 1097 3.70 3453 4400 1004 3.19 2885 1042 3.41 3097 1080 3.63 3388 1105 3.91 3642 4500 1015 3.33 2020 1051 3.45 3218 1090 3.75 3493 1112 4.12 3843 4600 1025 3.48 3166 1060 3.61 3369 1100 3.92 3655 1119 4.35 4057 4700 1037 3.58 3335 1070 3.84 3325 1111 4.10 3822 1126 4.59 4284 4800 1048 3.75 3494 1080 3.95 3686 1121 4.28 3995 1133 4.85 4523 4900 1060 3.92 3659 1089 4.13 3854 1132 4.48 4174 1140 5.12 4775 5000 1072 4.11 3830 1099 4.32 4027 1144 4.67 4359

Bhp — FIOP — Watts —

*Standard motor drive range: 685 to 935 rpm. Alternate motor drive

range: 835 to 1085 rpm. High-static motor drive range is 830 to 1130 rpm. All other rpms require field-supplied drive.

NOTES:

2. Maximum usable watts input is 2120 with standard motor,

Rpm Bhp Watts Rpm B hp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm B hp Watts Rp m Bhp Watts

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

Boldface

2615 with alternate motor, and 4400 for the high-static motor. Maximum continuous bhp is 2.40 with standard motor, 2.90

0.2 0.4 0.6 0.8 1.0 1.2

532 0.64 630 605 0.81 763 670 0.97 891 725 1.12 1014 778 1.28 1148 825 1.43 1275 544 0.70 677 616 0.86 803 680 1.03 940 735 1.20 1081 787 1.36 1216 835 1.52 1353 557 0.75 716 628 0.93 859 690 1.10 998 746 1.28 1148 796 1.44 1284 844 1.61 1430 570 0.81 763 639 0.99 907 700 1.18 1064 757 1.36 1216 805 1.52 1353 854 1.70 1508 583 0.88 818 651 1.06 965 711 1.25 1123 767 1.44 1284 815 1.61 1430 863 1.79 1587 596 0.94 867 663 1.14 1031 721 1.33 1190 777 1.52 1353 826 1.71 1517 871 1.88 1665 609 1.01 924 674 1.22 1097 732 1.42 1267 787 1.61 1430 836 1.80 1595 880 1.98 1753 622 1.09 989 686 1.30 1165 744 1.50 1335 797 1.70 1508 847 1.91 1691 890 2.09 1849 635 1.16 1047 698 1.39 1241 755 1.59 1413 808 1.80 159 5 857 2.01 1779 901 2.20 1945 649 1.25 1123 713 1.48 1318 767 1.68 1491 818 1.90 168 3 867 2.11 1866 912 2.32 2050 662 1.33 1190 722 1.57 1396 778 1.78 1578 829 2.01 177 9 878 2.22 1962 922 2.44 2203 675 1.42 1267 734 1.67 1482 790 1.89 1674 839 2.12 187 5 888 2.33 2058 933 2.56 2309 689 1.52 1353 746 1.77 1569 801 1.99 1761 851 2.23 197 1 898 2.45 2212 943 2.69 2424 702 1.61 1430 759 1.88 1665 813 2.11 1866 862 2.34 206 7 908 2.58 2326 953 2.81 2533 715 1.72 1526 772 1.99 1761 825 2.22 1962 873 2.46 222 1 919 2.71 2442 729 1.83 1621 785 2.10 1858 837 2.35 2076 885 2.59 233 5 929 2.85 2569 742 1.94 1718 797 2.22 1962 848 2.48 2238 896 2.72 245 1 756 2.06 1823 810 2.34 2067 860 2.61 2353 908 2.86 257 8 770 2.18 1927 823 2.46 2221 872 2.75 2505 783 2.31 2041 836 2.60 2344 884 2.89 2605 797 2.44 2203 849 2.73 2460

External Static Pressure (in. wg)

1.4 1.6 1.8 2.0

874 1.60 1422 926 1.82 1613 974 2.11 1920 1012 2.41 2134 880 1.68 1491 933 1.87 1656 983 2.16 1963 1017 2.44 2177 888 1.77 1569 934 1.94 1718 988 2.18 1980 1025 2.47 2230 897 1.86 1648 940 2.03 1853 989 2.24 2031 1032 2.53 2282 907 1.97 1744 947 2.14 1946 991 2.32 2099 1038 2.57 2318 916 2.07 1831 956 2.25 2039 997 2.43 2195 1043 2.64 2380 926 2.18 1927 966 2.41 2134 1004 2.54 2291 1045 2.74 2478 934 2.28 2015 976 2.48 2238 1013 2.66 2397 1051 2.85 2569 943 2.41 2160 985 2.60 2334 1023 2.79 2514 952 2.51 2265 994 2.72 2451 962 2.63 2371 1003 2.84 2560 973 2.77 2496

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates high-static motor and drive are required.

1011 2.97 2679 1051 3.20 2895 1087 3.41 3097

External Static Pressure (in. wg)

919 3.00 2707 963 3.27 2847 1003 3.43 3202

897 3.04 2661 943 3.30 2870 984 3.44 3211 1023 3.75 3501

1032 2.92 2633 1068 3.12 2819 1042 3.06 2763 1078 3.26 2952

931 3.14 2838 974 3.41 2956 1013 3.59 3349

1059 2.98 2688

—— —

with alternate motor, and 5.25 for the high-static motor. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. For additional information on motor performance, refer to Table 8.

3. Values include losses for filters, unit casings, and wet coils. See Table 7 for accessory/FIOP static pressure information.

4. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

5. Interpolation is permissible. Do not extrapolate.

963 2.94 2651

940 2.98 2688 984 3.22 2914 951 3.12 2727 994 3.38 3068

973 3.08 2782

Page 27

Table 14 — Fan Performance, 50TFF014 — Vertical Discharge Units

50TFF014 (12 TONS)*

Airflow

(Cfm)

3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 963 3.83 3433 1006 4.14 3720 1046 4.50 4055 1085 4.79 4326 1123 5.07 4586 5900 978 4.00 3590 1021 4.34 3906 1060 4.69 4232 1098 5.01 4531 6000 993 4.22 3795 1035 4.54 4093 1074 4.91 4419 1112 5.23 4735 6100 1008 4.42 3981 1050 4.75 4288 1089 5.10 4616 6200 1023 4.63 4176 1065 4.96 4484 6300 1038 4.85 4382 1079 5.19 4698

Rpm Bhp Watts Rpm B hp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm B hp Watts Rp m Bhp Watts

0.2 0.4 0.6 0.8 1.0 1.2

654 1.12 1065 714 1.31 1218 767 1.50 1373 815 1.67 1514 861 1.85 1666 906 2.08 1862 668 1.20 1129 727 1.40 1291 780 1.60 1456 827 1.77 1598 873 1.95 1751 916 2.18 1948 683 1.28 1194 741 1.49 1365 793 1.70 1540 839 1.88 1691 884 2.05 1836 927 2.28 2035 697 1.37 1267 754 1.59 1448 806 1.80 1624 851 1.99 1785 895 2.16 1931 938 2.38 2123 711 1.46 1340 767 1.69 1531 819 1.90 1708 864 2.10 1879 907 2.28 2035 949 2.49 2219 726 1.56 1423 780 1.80 1624 832 2.01 1802 877 2.22 1983 919 2.41 2149 960 2.60 2316 741 1.66 1506 794 1.91 1717 845 2.12 1897 889 2.35 2096 931 2.54 2263 971 2.72 2433 755 1.77 1598 808 2.03 1819 858 2.24 2000 902 2.48 2210 943 2.68 2387 983 2.86 2548 770 1.89 1700 821 2.15 1923 871 2.37 2114 915 2.61 2325 955 2.82 2512 995 3.01 2683 784 2.00 1794 835 2.27 2027 884 2.49 2219 928 2.75 2450 968 2.96 2638 1006 3.17 2828 799 2.13 1905 849 2.40 2140 897 2.63 2343 941 2.88 2566 981 3.11 2773 1018 3.32 2964 814 2.25 2009 863 2.53 2254 910 2.77 2468 954 3.02 2692 993 3.27 2919 1030 3.48 3111 829 2.39 2131 877 2.67 2378 923 2.92 2602 967 3.17 2828 1006 3.43 3065 1043 3.65 3267 843 2.52 2246 892 2.81 2503 937 3.08 2746 980 3.32 2964 1019 3.60 3221 858 2.67 2378 906 2.95 2629 950 3.24 2891 993 3.48 3111 873 2.82 2512 920 3.10 2764 963 3.40 3037 1006 3.65 3267 888 2.97 2647 934 3.26 2910 977 3.57 3193 903 3.13 2792 949 3.43 3065 918 3.30 2946 963 3.59 3212 933 3.47 3101 948 3.65 3267

978 3.77 3377 1018 4.11 3692 1058 4.38 3943 1097 4.66 4204 1132 4.97 4493 992 3.95 3544 1032 4.30 3869 1072 4.58 4130 1110 4.86 4391 1145 5.18 4689

External Static Pressure (in. wg)

1032 3.76 3368 1068 4.00 3590

991 3.75 3359 1032 4.00 3590 1071 4.29 3860 1106 4.57 4120

1004 3.92 3516 1045 4.18 3757 1084 4.47 4027 1119 4.77 4307

—— — —— — —— — —— — —— — —— — —— — —— —

1019 3.82 3424 1058 4.11 3692 1094 4.38 3943

—— — —— — —— —

1045 3.93 3525 1081 4.19 3767

—— — —— — —— — —— —

1055 3.82 3424

—— —

50TFF014 (12 TONS)* (cont)

Airflow

(Cfm)

3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 1079 3.87 3470 1114 4.09 3674 1149 4.37 3934 1182 4.68 4223 5000 1091 4.05 3637 1126 4.25 3822 1160 4.53 4083 1193 4.85 4382 5100 1103 4.23 3804 1137 4.45 4009 1171 4.70 4242 1204 5.01 4531 5200 1115 4.42 3981 1149 4.65 4195 1182 4.91 4409 1215 5.18 4689 5300 1127 4.62 4167 1161 4.85 4382 1194 5.07 4586 5400 1139 4.82 4354 1173 5.06 4577 5500 1152 5.03 4549 5600 1165 5.24 4746 5700 5800 5900 6000 6100 6200 6300

Bhp — FIOP — Watts —

*Standard motor drive range: 860 to 1080 rpm. Alternate motor drive

range: 900 to 1260 rpm. All other rpms require field-supplied drive.

NOTES:

2. Maximum usable watts input is 3313 with standard motor and

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

1000 2.86 254 8 1039 3.10 2764 1077 3.31 2955 1114 3.54 3166 1011 2.97 264 7 1049 3.23 2882 1087 3.46 3092 1124 3.69 3304 1022 3.10 276 4 1059 3.37 3010 1097 3.61 3230 1033 3.23 288 2 1070 3.51 3138 1044 3.37 301 0 1081 3.64 3258 1056 3.52 314 7 1057 3.69 330 4

Boldface

4400 with alternate motor. Maximum continuous bhp is 3.70 with standard motor and 5.25 with alternate motor. Extensive

1.4 1.6 1.8 2.0

950 2.27 202 7 991 2.47 2202 1030 2.65 2361 1064 2.82 2512 959 2.38 212 3 1001 2.58 2299 1040 2.78 2476 1075 2.96 2638 969 2.50 222 8 1010 2.70 2405 1049 2.91 2593 1085 3.11 2773 979 2.62 233 4 1020 2.83 2521 1059 3.04 2710 1095 3.25 2901 989 2.74 244 1 1029 2.96 2638 1068 3.18 2837 1105 3.39 3028

—— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— — —— —

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates alternate motor and drive are required.

External Static Pressure (in. wg)

1107 3.76 33 68 1143 4.00 3590

1092 3.78 33 87 1127 4.07 3655 1162 4.33 3897 1103 3.93 35 25 1138 4.23 3804 1172 4.50 4055

—— — —— — —— — —— — —— — —— —

1117 3.92 35 16 1152 4.17 3748

—— — —— —

1133 3.84 3 442

—— —

motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. For additional information on motor performance, refer to Table 8.

3. Values include losses for filters, unit casings, and wet coils. See Table 7 for accessory/FIOP static pressure information.

4. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

5. Interpolation is permissible. Do not extrapolate.

Page 28

Table 15 — Fan Performance, 50TFF008 Standard Motor and Drive and Alternate Drive —

Horizontal Discharge Units

50TFF008 (7

Airflow

(Cfm)

2250 465 0.43 473 554 0.64 630 2300 471 0.45 487 559 0.66 646 2400 482 0.50 524 569 0.71 684 2500 494 0.54 554 581 0.76 723 2550 501 0.57 577 587 0.79 747 2660 507 0.59 592 2700 520 0.65 638 2800 533 0.71 684 2900 546 0.77 731 3000 559 0.83 779 3100 572 0.90 835 3200 585 0.96 883 3300 3400 3500 3600 3700 3750

50TFF008 (7

Airflow

(Cfm)

2250 2300 2400 2500 2550 2660 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750

Bhp — FIOP — Watts —

*Motor drive range: 590 to 840 rpm. Alternate motor drive range:

685 to 935 rpm. All other rpms require field-supplied drive.

NOTES:

Boldface

2. indicates high-static motor and drive are required.

/2 TONS) — STANDARD MOTOR AND DRIVE AND ALTERNATE DRIVE (BELT DRIVE)*

External Static Pressure (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

592 0.82 771 663 1.08 981 727 1.32 1182 784 1.58 1404 604 0.89 827 672 1.14 1031 737 1.40 1250 793 1.66 1473 615 0.95 875 683 1.20 1081 747 1.49 1327 802 1.75 1552 626 1.02 932 693 1.27 1140 756 1.57 1396 813 1.84 1630 637 1.09 989 704 1.35 1207 765 1.66 1473 823 1.94 1718 648 1.17 1056 715 1.43 1275 775 1.74 1543 832 2.05 1814

598 1.03 940 671 1.32 1182 739 1.62 1439 795 1.91 1691 851 2.26 1997 610 1.10 998 682 1.41 1258 750 1.72 1526 806 2.01 1779 860 2.36 2084 623 1.17 1056 694 1.50 1335 761 1.82 1613 817 2.11 1866 636 1.25 1123 707 1.60 1422 772 1.93 1709 828 2.23 1971 649 1.33 1190 720 1.71 1517 783 2.03 1796 840 2.35 2076 655 1.37 1224 727 1.77 1569 789 2.09 1849

/2 TONS — STANDARD MOTOR AND DRIVE AND ALTERNATE DRIVE (BELT DRIVE)* (cont)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

810 1.62 1439 850 1.91 1691 873 2.20 1945 816 1.65 1465 859 1.94 1718 888 2.24 1980 824 1.72 1526 872 2.01 1779 909 2.32 2050 832 1.79 1587 882 2.09 1849 925 2.40 2119 836 1.83 1621 887 2.13 1884 839 1.87 1656 891 2.17 1919 846 1.95 1726 898 2.26 1997 855 2.04 1805 906 2.35 2076 863 2.13 1884 872 2.22 1962 882 2.33 2058 892 2.45 2162 939 2.76 2428 984 3.10 2710 — — — — — — 902 2.57 2266 948 2.88 2529 993 3.21 2799 — — — — — — 912 2.69 2369 958 3.01 2637 1002 3.34 2902 — — — — — — 921 2.82 2479 968 3.15 2751 — — — — — — — — — 930 2.95 2587 978 3.29 2862 — — — — — — — — — 940 3.07 2686 — — — — — — — — — — — — 945 3.14 2743 — — — — — — — — — — — —

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

660 1.24 1114 727 1.52 1353 785 1.83 1321 841 2.15 1901

External Static Pressure (in. wg)

913 2.44 2154 961 2.77 2436 1006 3.12 2727 — — — 921 2.54 2240 969 2.88 2529 1014 3.22 2807 — — — 930 2.65 2335 976 2.99 2620 1021 3.34 2902 — — —

630 0.86 803 695 1.09 989 757 1.34 1199 635 0.89 827 699 1.12 1014 760 1.37 1224 645 0.95 875 708 1.18 1064 768 1.44 1284 654 1.01 924 717 1.25 1123 776 1.51 1344 659 1.05 956 722 1.29 1156 780 1.55 1378

870 2.47 2180 880 2.57 2266

846 2.42 2136 896 2.75 2420

883 2.50 2206 895 2.78 2445 903 2.55 2249 911 2.85 2504 931 2.64 2326 935 2.96 2595

931 2.45 2162 964 2.77 2436 986 3.11 2718 936 2.49 2197 973 2.82 2479 999 3.16 2759 946 2.58 2275 987 2.91 2554 1019 3.26 2839 954 2.67 2352 997 3.01 2637 1034 3.36 2917

3. Maximum usable watts input is 2120 and maximum continuous bhp is 2.40. Extensive motor and electrical test ing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. For additional information on motor performance, refer to Table 8.

4. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permiss ible. Do not extrapolate.

955 2.72 2394 972 3.06 2678

890 2.69 2369

Page 29

Table 16 — Fan Performance, 50TFF008 High-Static Motor — Horizontal Discharge Units

50TFF008 (7

Airflow

(Cfm)

2250 507 0.53 547 586 0.73 700 658 0.97 891 722 1.22 1097 783 1.46 1301 2300 513 0.55 562 592 0.76 723 663 1.00 916 727 1.26 1131 786 1.49 1327 2400 528 0.60 600 606 0.83 779 674 1.06 965 738 1.34 1199 795 1.58 1404 2500 542 0.68 648 619 0.90 835 686 1.13 1022 748 1.41 1258 806 1.68 1491 2550 550 0.69 669 627 0.94 867 692 1.17 1056 754 1.45 1292 812 1.74 1543 2660 557 0.72 692 634 0.97 891 698 1.21 1089 759 1.49 1327 816 1.79 1587 2700 573 0.79 747 648 1.05 956 711 1.29 1156 770 1.58 1404 827 1.88 1665 2800 588 0.86 803 662 1.13 1022 723 1.38 1233 782 1.66 1473 837 1.98 1763 2900 604 0.94 867 676 1.21 1089 737 1.48 1318 794 1.76 1560 849 2.08 1840 3000 620 1.02 932 690 1.30 1165 750 1.58 1404 806 1.86 1648 849 2.18 1927 3100 636 1.11 1006 704 1.39 1241 764 1.69 1499 818 1.97 1744 3200 652 1.21 1089 718 1.49 1327 778 1.90 1595 831 2.09 1849 3300 668 1.31 1173 732 1.59 1413 793 1.92 1700 844 2.21 1954 3400 684 1.41 1258 747 1.70 1508 807 2.04 1805 857 2.35 2076 3500 701 1.53 1361 762 1.82 1613 821 2.16 1010 3600 717 1.65 1465 777 1.94 1718 835 2.29 2023 3700 733 1.77 1569 792 2.07 1831 849 2.42 2136 3750 742 1.84 1630 800 2.14 1892 856 2.49 2197

/2 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

External Static Pressure (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

870 2.29 2023 882 2.40 2119 894 2.53 2232

871 2.48 2188 919 2.80 2462 885 2.63 2317 932 2.95 2587 899 2.78 2445 945 3.11 2718 907 2.86 2512 952 3.20 2719

907 2.66 2343

50TFF008 (7

Airflow

(Cfm)

2250 843 1.81 1604 2300 846 1.84 1630 2400 853 1.88 1665 2500 859 1.94 1718 2550 2660 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750

Bhp — FIOP — Watts —

*Motor drive range: 860 to 1080 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

/2 TONS — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

External Static Pressure (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

908 2.25 1989 955 2.59 2283 991 2.89 2543 1023 3.19 2805 910 2.25 2015 959 2.61 2300 995 2.91 2563 1028 3.21 2827 912 2.31 2041 967 2.68 2360 1003 2.99 2631 1036 3.30 2902

864 1.99 1761 920 2.39 2110 974 2.76 2428 1010 3.08 2710 1044 3.40 2989 868 2.04 1805 921 2.41 2136 976 2.78 2445 1012 3.10 2730 1046 3.42 3011 878 2.16 1910 928 2.45 2162 983 2.88 2529 1020 3.21 2828 1053 3.54 3119 889 2.29 2023 937 2.57 2266 986 2.91 2554 1023 3.25 2857 1057 3.58 3181 900 2.41 2128 947 2.70 2377 993 3.01 2637 1030 3.36 2955 1064 3.70 3260 910 2.52 2223 958 2.85 2504 1002 3.15 2751 1039 3.51 3093 920 2.64 2326 968 2.99 2620 1012 3.30 2870 1050 3.68 3240 931 2.76 2428 979 3.13 2735 1023 3.47 3002 942 2.89 2537 989 3.26 2839 1034 3.63 3121 954 3.02 2645 1000 3.40 2948 966 3.15 2751 1011 3.55 3062 978 3.30 2870 1022 3.69 3165 990 3.45 2987 997 3.54 3055

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

919 2.37 2093 971 2.73 2403 1007 3.05 2681 1041 3.36 2956

1034 3.84 3272 — — — — — — — — — 1040 3.93 3333 — — — — — — — — —

1074 3.88 3411

1061 3.87 3407 — — —

1044 3.79 3237 — — — — — — 1054 3.94 3340 — — — — — — 1065 4.10 3445 — — — — — —

3. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permiss ible. Do not extrapolate.

1072 4.05 3564 — — —

1084 4.06 3574

Page 30

Table 17 — Fan Performance, 50TFF009 Standard Motor — Horizontal Discharge Units

50TFF009 (8

Airflow

(Cfm)

2550 501 0.57 577 587 0.79 747 659 1.05 956 2660 507 0.59 592 592 0.82 771 663 1.08 981 2700 520 0.65 638 604 0.89 827 672 1.14 1031 2800 533 0.71 684 615 0.95 875 683 1.20 1081 2900 546 0.77 731 626 1.02 932 3000 559 0.83 779 637 1.09 989 3100 572 0.90 835 648 1.17 1056 3200 585 0.96 883 660 1.24 1114 3300 598 1.03 940 671 1.32 1182 3400 610 1.10 998 682 1.41 1258 3500 623 1.17 1056 3600 636 1.25 1123 3700 649 1.33 1190 3750 655 1.37 1224 3800 661 1.41 1258 3900 674 1.49 1327 4000 4100 4200 4250

50TFF009 (8

Airflow

(Cfm)

2550 2660 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750 3800 3900 4000 4100 4200 4250

Bhp — FIOP — Watts —

*Motor drive range: 685 to 935 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

/2 TONS) — STANDARD MOTOR (BELT DRIVE)*

External Static Pressure (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

693 1.27 1140 756 1.57 1396 813 1.84 1630 704 1.35 1207 765 1.66 1473 823 1.94 1718 715 1.43 1275 775 1.74 1543 832 2.05 1814 727 1.52 1353 785 1.83 1321 841 2.15 1901 739 1.62 1439 795 1.91 1691 851 2.26 1997

694 1.50 1335 761 1.82 1613 817 2.11 1866 707 1.60 1422 772 1.93 1709 828 2.23 1971 720 1.71 1517 783 2.03 1796 840 2.35 2076 727 1.77 1569 789 2.09 1849 733 1.82 1613 795 2.15 1901

687 1.57 1396 759 2.05 1814 817 2.38 2102 699 1.60 1473 772 2.17 1919 712 1.75 1552 785 2.30 2032 719 1.80 1595 792 2.37 2093

/2 TONS) — STANDARD MOTOR (BELT DRIVE)* (cont)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

836 1.83 1621 887 2.13 1884 839 1.87 1656 891 2.17 1919 846 1.95 1726 898 2.26 1997 855 2.04 1805 906 2.35 2076 863 2.13 1884 872 2.22 1962 882 2.33 2058 892 2.45 2162 939 2.76 2428 984 3.10 2710 — — — — — — 902 2.57 2266 948 2.88 2529 993 3.21 2799 — — — — — — 912 2.69 2369 958 3.01 2637 1002 3.34 2902 — — — — — — 921 2.82 2479 968 3.15 2751 — — — — — — — — — 930 2.95 2587 978 3.29 2862 — — — — — — — — — 940 3.07 2686 — — — — — — — — — — — — 945 3.14 2743 — — — — — — — — — — — — 949 3.20 2781 — — — — — — — — — — — — 959 3.33 2894 — — — — — — — — — — — —

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

746 1.93 1709 806 2.26 1997

913 2.44 2154 961 2.77 2436 1006 3.12 2727 — — — 921 2.54 2240 969 2.88 2529 1014 3.22 2807 — — — 930 2.65 2335 976 2.99 2620 1021 3.34 2902 — — —

750 1.72 1526 806 2.01 1779 860 2.36 2084

828 2.50 2206 885 2.88 2529 935 3.23 2815 840 2.64 2326 897 3.03 2653 947 3.39 2940 846 2.71 2386 903 3.10 2710 — — —

External Static Pressure (in. wg)

931 2.45 2162 964 2.77 2436 986 3.11 2718 936 2.49 2197 973 2.82 2479 999 3.16 2759 946 2.58 2275 987 2.91 2554 1019 3.26 2839 954 2.67 2352 997 3.01 2637 1034 3.36 2917

3. Maximum usable watts input is 2120 and maximum continuous

4. Values include losses for filters, unit casing, and wet coils. See

5. Use of a field-supplied motor may affect wire sizing. Contact

6. Interpolation is permiss ible. Do not extrapolate.

722 1.29 1156 780 1.55 1378 727 1.32 1182 784 1.58 1404 737 1.40 1250 793 1.66 1473 747 1.49 1327 802 1.75 1552

870 2.47 2180 880 2.57 2266

846 2.42 2136 896 2.75 2420 852 2.48 2188 901 2.80 2462 863 2.61 2300 912 2.93 2571 874 2.75 2420 923 3.08 2694

bhp is 2.40. Extensive motor and electrical test ing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected. For additional information on motor performance, refer to Table 8.

Table 7 for accessory/FIOP static pressure information. your Carrier representative for details.

890 2.69 2369

Page 31

Table 18 — Fan Performance, 50TFF009 High-Static Motor — Horizontal Discharge Units

50TFF009 (8

Airflow

(Cfm)

2550 550 0.69 669 627 0.94 867 692 1.17 1056 754 1.45 1292 812 1.74 1543 2660 557 0.72 692 634 0.97 891 698 1.21 1089 759 1.49 1327 816 1.79 1587 2700 573 0.79 747 648 1.05 956 711 1.29 1156 770 1.58 1404 827 1.88 1665 2800 588 0.86 803 662 1.13 1022 723 1.38 1233 782 1.66 1473 837 1.98 1753 2900 604 0.94 867 676 1.21 1089 737 1.48 1318 794 1.76 1560 848 2.08 1840 3000 620 1.02 932 690 1.30 1165 750 1.58 1404 806 1.86 1648 849 2.18 1927 3100 636 1.11 1006 704 1.39 1241 764 1.69 1499 818 1.97 1744 3200 652 1.21 1089 718 1.49 1327 778 1.80 1595 831 2.09 1849 3300 668 1.31 1173 732 1.59 1413 793 1.92 1700 844 2.21 1954 3400 684 1.41 1258 747 1.70 1508 807 2.04 1805 857 2.35 2076 3500 701 1.53 1361 762 1.82 1613 821 2.16 1910 3600 717 1.65 1465 777 1.94 1718 835 2.29 2023 3700 733 1.77 1569 792 2.07 1831 849 2.42 2136 3750 742 1.84 1630 800 2.14 1892 856 2.49 2197 3800 750 1.90 1683 807 2.21 1954 3900 767 2.04 1805 822 2.35 2076 4000 783 2.18 1927 838 2.50 2206 4100 800 2.34 2067 854 2.66 2343 4200 817 2.49 2197 4250 826 2.58 2275

50TFF009 (8

Airflow

(Cfm)

2550 2660 2700 2800 2900 3000 3100 3200 3300 3400 3500 3600 3700 3750 3800 3900 4000 4100 4200 4250

Bhp — FIOP — Watts —

*Motor drive range: 860 to 1080 rpm. All other rpms require field-

supplied drive.

NOTES:

Boldface

2. indicates field-supplied motor and drive are required.

/2 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)*

External Static Pressure (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

870 2.29 2023 882 2.40 2119 894 2.53 2232

871 2.48 2188 919 2.80 2462 885 2.63 2317 932 2.95 2587 899 2.78 2445 945 3.11 2718

863 2.56 2257 914 2.93 2571 958 3.28 2854 877 2.71 2386 928 3.09 2702 972 3.45 2987 891 2.86 2512 942 3.26 2839 986 3.63 3121

869 2.82 2479 920 3.19 2783 970 3.60 3099 877 2.91 2554 928 3.28 2854 977 3.69 3165

/2 TONS) — HIGH-STATIC MOTOR (BELT DRIVE)* (cont)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

864 1.99 1761 920 2.39 2110 974 2.76 2428 1005 3.04 2672 1034 3.31 2910 868 2.04 1805 921 2.41 2136 976 2.78 2445 1008 3.06 2691 1037 3.33 2931 878 2.16 1910 928 2.45 2162 983 2.88 2529 1015 3.17 2788 1044 3.45 3036 889 2.29 2023 937 2.57 2266 986 2.91 2554 1018 3.20 2817 1047 3.49 3068 900 2.41 2128 947 2.70 2377 993 3.01 2637 1025 3.31 2914 1055 3.61 3174 910 2.52 2223 958 2.85 2504 1002 3.15 2751 1034 3.47 3049 920 2.64 2326 968 2.99 2620 1012 3.30 2870 1045 3.63 3195 931 2.76 2428 979 3.13 2735 1023 3.47 3002 942 2.89 2537 989 3.26 2839 1034 3.63 3121 954 3.02 2645 1000 3.40 2948 966 3.15 2751 1011 3.55 3062 978 3.30 2870 1022 3.69 3165 990 3.45 2987

997 3.54 3055 1003 3.62 3114 1015 3.80 3244 1057 4.18 3495 — — — — — — — — — 1028 3.99 3373 — — — — — — — — — — — — 1042 4.18 3495 — — — — — — — — — — — —

—— — —— — —— — —— — —— — —— — —— — —— — —— — —— —

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

1034 3.84 3272 — — — — — — — — — 1040 3.93 3333 — — — — — — — — — 1045 4.01 3387 — — — — — — — — —

905 3.02 2645 956 3.43 2971

External Static Pressure (in. wg)

1044 3.79 3237 1078 4.17 3669 — — — 1054 3.94 3340 — — — — — — 1065 4.10 3445 — — — — — —

3. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details.

6. Interpolation is permiss ible. Do not extrapolate.

907 2.86 2512 952 3.20 2719

1056 3.82 3359 1087 4.16 3659 1067 3.99 3514 — — —

907 2.66 2343

1000 3.81 3251 1015 4.00 3380 1022 4.10 3445

1064 3.77 3321 1075 3.95 3479

Page 32

Table 19 — Fan Performance, 50TFF012 — Horizontal Discharge Units

50TFF012 (10 TONS)*

Airflow

(Cfm)

3000 484 0.55 562 560 0.70 677 631 0.87 810 3100 495 0.61 607 570 0.76 723 638 0.92 851 3200 505 0.66 646 579 0.81 763 646 0.98 899 3300 516 0.72 692 589 0.87 810 655 1.05 956 3400 527 0.78 739 599 0.93 859 664 1.11 1006 3500 537 0.85 795 609 0.99 907 672 1.18 1064 3600 548 0.92 851 619 1.05 956 680 1.24 1114 3700 560 1.00 916 629 1.12 1014 3800 571 1.08 981 639 1.19 1072 3900 582 1.16 1047 649 1.27 1140 4000 593 1.25 1123 659 1.35 1207 4100 605 1.35 1207 670 1.44 1284 4200 616 1.45 1292 680 1.53 1361 4300 628 1.56 1387 4400 639 1.67 1482 4500 651 1.78 1578 4600 662 1.91 1691 4700 674 2.03 1796 4800 4900 5000

50TFF012 (10 TONS)* (cont)

Airflow

(Cfm)

3000 3100 3200 3300 3400 3500 3600 3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000

Bhp — FIOP — Watts —

*Standard motor drive range: 685 to 935 rpm. Alternate motor drive

range: 835 to 1085 rpm. High static motor drive range: 830 to 1130 rpm. All other rpms require field-supplied drive.

NOTES:

Boldface

2. indicates high-static motor and drive are required.

3. Maximum usable watts input is 2120 with standard motor, 2615 with alternate motor, and 4400 for the high-static motor.

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

686 2.17 1919 744 2.20 1945 797 2.36 2084 846 2.62 2362 891 2.85 2569 698 2.31 2041 755 2.33 2058 808 2.48 2238 856 2.73 2460 710 2.45 2212 766 2.47 2230 818 2.61 2353 866 2.86 2578

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

800 1.38 1233 850 1.52 1353 879 1.38 1233 925 1.81 1604 964 1.92 1761 805 1.44 1284 857 1.63 1447 896 1.66 1473 935 1.93 1709 975 1.98 1811 812 1.51 1344 862 1.71 1517 908 1.85 1639 944 2.01 1836 984 2.09 1903 819 1.59 1413 867 1.78 1578 915 1.98 1753 952 2.11 1920 993 2.22 2014 827 1.67 1482 873 1.85 1639 920 2.07 1831 963 2.21 2005 1001 2.31 2091 833 1.75 1552 880 1.94 1718 926 2.15 1901 970 2.41 2134 1007 2.46 2221 840 1.83 1621 888 2.04 1805 931 2.23 1971 976 2.47 2230 1017 2.62 2362 847 1.92 1700 895 2.13 1884 938 2.33 2108 981 2.56 2309 1024 2.77 2496 856 2.02 1788 901 2.23 1971 945 2.44 2203 986 2.65 2389 1029 2.89 2605 865 2.12 1875 908 2.32 2050 953 2.55 2300 993 2.75 2478 875 2.22 1962 915 2.42 2186 960 2.65 2389 1000 2.87 2587 883 2.32 2050 924 2.54 2291 966 2.76 2487 889 2.41 2177 934 2.65 2389 972 2.87 2587 896 2.51 2265 943 2.77 2406 903 2.62 2362 951 2.89 2603 912 2.74 2469 921 2.87 2587 930 3.00 2707 972 3.23 2923 1017 3.45 3224 1048 3.80 3436 1088 4.13 3552 938 3.14 2838 980 3.37 3058 1025 3.55 3362 1055 3.85 3584 1095 4.30 3653 946 3.27 2962 990 3.51 3149 1034 3.71 3505 1062 3.98 3741 1101 4.45 3753 954 3.39 3078 998 3.62 3271 1042 3.85 3654 1068 4.08 3907 1108 4.59 3851

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

0.2 0.4 0.6 0.8 1.0

690 1.63 1447 747 1.83 1621 798 2.05 1814 849 2.30 2032 701 1.73 1534 757 1.92 1700 807 2.16 1910 858 2.41 2177 712 1.84 1630 767 2.02 1788 817 2.27 2006 866 2.51 2265 722 1.95 1726 777 2.13 1884 827 2.38 2102 874 2.62 2362 733 2.07 1831 787 2.24 1980 836 2.50 2256 882 2.73 2460

1.2 1.4 1.6 1.8 2.0

958 3.00 2707 999 3.26 2982 1035 3.51 3161 1074 3.74 3346 965 3.11 2810 1008 3.39 3078 1041 3.68 3295 1081 3.90 3450

External Static Pressure (in. wg)

688 1.31 1173 747 1.51 1344 802 1.73 1534 698 1.39 1241 756 1.60 1422 810 1.81 1604 708 1.47 1310 764 1.69 1499 816 1.89 1674 717 1.56 1387 773 1.78 1578 823 1.98 1753 727 1.65 1465 781 1.86 1648 832 2.08 1840 737 1.74 1543 789 1.95 1726 841 2.18 1927

External Static Pressure (in. wg)

980 2.99 2698 1021 3.23 2923 1061 3.48 3166 990 3.12 2819 1028 3.36 3049 1068 3.61 3241

4. Values include losses for filters, unit casing, and wet coils. See

5. Use of a field-supplied motor may affect wire sizing. Contact

6. Interpolation is permiss ible. Do not extrapolate.

690 1.03 940 747 1.20 1081 699 1.10 998 755 1.27 1140 708 1.16 1047 761 1.34 1199 717 1.23 1106 767 1.40 1250 724 1.30 1165 775 1.48 1318 731 1.36 1216 784 1.56 1387 738 1.43 1275 794 1.64 1456

900 2.99 2698 910 3.12 2819

1034 3.00 2707

1008 2.99 2698 1046 3.21 2904 1015 3.12 2819 1053 3.34 3029

Maximum continuous bhp is 2.40 with standard motor, 2.90 with a alternate motor, and 5.25 for the high-static motor. Extensive motor and electrical testing on these units ensures that the full range of the motor can b e u tili z ed wit h confi dence . Using your fan motors up to the w attage ratings shown will not result in nuisan c e tripping or premature motor failure. Unit warranty will not be affected.

Table 7 for accessory/FIOP static pressure information. your Carrier representative for details. For additional information

on motor performance, refer to Table 8.

1039 3.10 2800

Page 33

Table 20 — Fan Performance, 50TFF014 — Horizontal Discharge Units

50TFF014 (12

Airflow

(Cfm)

3700 607 0.97 947 670 1.18 1113 732 1.37 1267 782 1.56 1423 833 1.73 1565 3800 621 1.05 1010 681 1.25 1170 742 1.45 1332 795 1.66 1506 842 1.82 1641 3900 636 1.13 1073 693 1.32 1226 751 1.53 1398 808 1.76 1590 851 1.92 1725 4000 650 1.21 1137 705 1.40 1291 761 1.61 1464 819 1.86 1674 4100 665 1.30 1210 717 1.48 1357 772 1.71 1548 830 1.96 1759 4200 680 1.39 1283 728 1.57 1431 783 1.81 1632 839 2.05 1836 4300 696 1.49 1365 739 1.66 1506 794 1.91 1717 848 2.14 1914 4400 711 1.60 1456 750 1.75 1582 805 2.02 1811 857 2.24 2000 4500 727 1.70 1540 762 1.85 1666 817 2.12 1897 4600 742 1.82 1641 774 1.96 1759 828 2.23 1992 4700 758 1.94 1742 786 2.07 1854 840 2.34 2088 4800 773 2.06 1845 799 2.18 1948 852 2.46 2193 4900 789 2.19 1957 812 2.30 2053 5000 805 2.32 2070 826 2.43 2166 5100 821 2.47 2202 840 2.57 2290 5200 837 2.61 2325 854 2.71 2414 5300 853 2.76 2459 5400 5500 5600 5700 5800 5900 6000 6100 6200 6300

/2 TONS)*

External Static Pressure (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

861 2.02 1811 871 2.13 1905 883 2.25 2009 896 2.38 2123

867 2.35 2096 919 2.63 2343 877 2.46 2193 929 2.75 2450 888 2.59 2307 938 2.87 2557

863 2.57 2290 910 2.86 2548 957 3.11 2773 875 2.70 2405 921 2.99 2665 966 3.24 2891 887 2.83 2521 932 3.13 2792 976 3.38 3019

869 2.92 2602 882 3.01 2683 920 3.24 2891 967 3.57 3193

868 2.85 2539 909 3.09 2755 955 3.42 3056 998 3.69 3304

885 3.09 2755 897 3.17 2828 932 3.38 3019 901 3.26 2910 911 3.33 2973 943 3.54 3166 917 3.44 3074 926 3.50 3129 956 3.70 3313 933 3.62 3239 941 3.68 3294 949 3.81 3414 956 3.87 3470 981 4.05 3637 1025 4.37 3934 1065 4.74 4279 965 4.01 3600 972 4.06 3646 995 4.23 3804 1037 4.55 4102 1076 4.92 4447 981 4.21 3785 987 4.26 3832 1008 4.42 3981 1042 4.73 4270 1088 5.10 4614 997 4.42 3981 1002 4.46 4018 1022 4.62 4167 1058 4.91 4437 — — —

1014 4.64 4186 1018 4.68 4223 1036 4.83 4363 1070 5.11 4624 — — —

898 2.96 2638 943 3.28 2928 987 3.53 3157

968 3.87 3470 1013 4.20 3775 1053 4.56 4111

899 2.72 2423 947 2.98 2656

978 3.72 3331 1029 4.03 3618 990 3.87 3470 1031 4.20 3775

1002 4.03 3618 1042 4.38 3943

908 2.51 2237

1009 3.86 3461

50TFF014 (12

Airflow

(Cfm)

3700 3800 3900 4000 4100 4200 4300 4400 4500 4600 4700 4800 4900 5000 5100 5200 5300 5400 5500 5600 5700 5800 5900 6000 6100 6200 6300

Bhp — FIOP — Watts —

*Standard motor drive range: 860 to 1080 rpm. Alternate motor drive

range: 900 to 1260 rpm. All other rpms require field-supplied drive.

NOTES:

Boldface

2. indicates alternate motor and drive are required.

/2 TONS)* (cont)

External Static Pressure (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts

879 1.95 1751 927 2.17 1940 973 2.38 2123 1013 2.57 2290 1046 2.73 2432 889 2.03 1819 934 2.26 2018 980 2.48 2210 1022 2.69 2396 1058 2.87 2557 898 2.12 1897 942 2.36 2105 987 2.59 2307 1030 2.81 2503 1068 3.01 2683 908 2.21 1974 950 2.46 2193 994 2.70 2405 1037 2.92 2602 1077 3.14 2801 917 2.32 2070 960 2.55 2272 1001 2.81 2503 1045 3.04 2710 1085 3.21 2919 925 2.44 2175 969 2.65 2370 1009 2.92 2602 1051 3.17 2828 1092 3.40 3037 935 2.56 2281 979 2.77 2468 1018 3.03 2701 1058 3.29 2937 1100 3.53 3157 945 2.68 2387 988 2.89 2575 1028 3.14 2801 1066 3.41 3047 1106 3.67 3285 955 2.82 2512 996 3.02 2692 1037 3.25 2901 1074 3.54 3166 967 2.96 2638 1005 3.16 2819 1046 3.38 3019 1084 3.66 3276 980 3.11 2773 1015 3.30 2946 1056 3.52 3147

992 3.26 2910 1025 3.45 3083 1064 3.67 3285 1003 3.41 3047 1036 3.61 3230 1014 3.56 3184 1024 3.71 3322 1061 3.96 3553 1093 4.17 3748 1129 4.40 3962 1166 4.66 4202 1033 3.84 3442 1073 4.14 3720 1103 4.34 3906 1138 4.58 4130 1175 4.82 4354 1042 3.98 3572 1084 4.31 3878 1115 4.53 4157 1148 4.76 4326 1184 5.01 4531 1051 4.14 3720 1095 4.49 4046 1128 4.74 4279 1158 4.95 4475 1193 5.20 4707 1061 4.30 3818 1105 4.66 4204 1140 4.94 4465 1168 5.15 4661 — — — 1071 4.46 4018 1114 4.81 4344 1152 5.14 4652 — — — — — — 1081 4.64 4186 1123 4.98 4503—— — —— — —— — 1092 4.84 4372 1132 5.15 4661—— — —— — —— — 1103 5.04 4558 — — — — — — — — — — — — 1114 5.24 4745 — — — — — — — — — — — —

———————————————

LEGEND

Brake Horsepower Input to Fan Factory-Installed Option Input Watts to Motor

indicates field-supplied drive is required.

1049 3.79 3396 1083 4.00 3590 1121 4.23 3804 1157 4.50 4055

1113 3.81 3414

1093 3.79 3396 1129 4.09 3674

1073 3.83 3433 1112 4.07 3655 1147 4.36 3925

3. Maximum usable watts input is 3313 with standard motor and 4400 with alternate motor. Maximum continuous bhp is 3.70 with standard motor and 5.25 with alternate motor. Extensive motor and electrical testing on these units ensures that the full range of the motor can be utilized with confidence. Using your fan motors up to the wattage ratings shown will not result in nuisance tripping or premature motor failure. Unit warranty will not be affected.

4. Values include losses for filters, unit casing, and wet coils. See Table 7 for accessory/FIOP static pressure information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Carrier representative for details. For additional information on motor performance, refer to Table 8.

6. Interpolation is permissible. Do not extrapolate.

1103 3.92 3516 1137 4.22 3795

1121 3.95 3544

Page 34

START-UP

Unit Preparation —

stalled in accordance with these installation instructions and applicable codes. Ensure Start-Up Checklist on back page of booklet is completely filled out.

Return-Air Filters —

stalled in unit (see Table 1). Do not operate unit without returnair filters.

Outdoor-Air Inlet Screens —

must be in place before operating unit.

Compressor Mounting —

spring mounted. Do not loosen or remove compressor holddown bolts. Remove the tiedown bands that hold the compressors together on 50TFF014 units.

Internal Wiring —

unit control boxes; tighten as required. Verify and correct if necessary. Ensure that electrical component wiring does not come in contact with refrigerant tubing or sharp edges.

Refrigerant Service Ports —

tem has 4 Schrader-type service gage ports: one on the suction line, one on the liquid line, and two on the compressor discharge line. Be sure that caps on the ports are tight.

HIGH FLOW REFRIGERANT VALVES — Two high flow valves are located on the hot gas tube coming out of the compressor and the suction tube going into the compressor. 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 acce ss 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 occur.

Compressor Rotation —

sor units, 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 discharge pressure fittings.

2. Energize the compressor.

3. The suction pressure should drop and the discharge pressure should rise, as is normal on any start-up.

If the suction pressure does not drop and the discharge pres-

sure does not rise to normal levels:

1. Note that the evaporator fan is probably also rotating in the wrong direction.

2. Turn off power to the unit, tag disconnect.

3. Reverse any two of the unit power leads.

4. Turn on power to the unit.

The suction and discharge pressure levels should now move

to their normal start-up levels. NOTE: When the compressor is rotating in the wrong direc-

tion, the unit makes an elevated level of noise and does not provide cooling.

To start unit, turn on main power supply. Set

Cooling —

system selector switch at COOL position and fan switch at AUTO. position. Adjust thermostat to a setting below room temperature. Compressor starts on closure of contactor.

Check unit charge. Refer to Refrigerant Charge section on page 36. Unit must operate a minimum of 10 minutes before adjusting charge.

Reset thermostat at a position above room temperature. Compressor will shut off.

TO SHUT OFF UNIT — Set sy st em selector switch at OFF position. Resetting thermostat at a position above room

Make sure that unit has been in-

Make sure correct air filters are in-

Outdoor-air inlet screen(s)

Compressors are internally

Check all electrical connections in

Each refrigerant sys-

On 3-phase scroll compres-

temperature shuts unit off temporarily until space temperature exceeds thermostat setting.

Heating (If Accessory Electric Heater is

T o start uni t, turn on main po wer supply.

Installed) —

Set thermostat at HEAT position and a setting above room

temperature, and set fan at AUTO. position.

First stage of thermostat energizes the first-stage electric heater; second stage energizes second-stage electric heater elements, if installed. Check air supply grille(s) to ensure proper heat supply .

If unit does not energize, reset limit switch (located on evaporator-fan scroll) by pressing button located between terminals on the switch.

TO SHUT OFF UNIT — Set syst em selector switch at OFF position. Resetting heating selector lever below room temperature will shut unit off temporarily until space temperature falls below thermostat sett ing.

Safety Relief —

the low-pressure service port provides pressure relief under abnormal temperature and pressure conditions.

Ventilation (Continuous Fan) —

selector switches at ON and OFF positions, respectively. Evaporator fan operates continuously to provide air circulation.

A soft solder joint in the suction line at

Set fan and system

Operating Sequence

COOLING, UNITS WITHOUT ECONOMIZER — When thermostat calls for cooling, terminals G and Y1 are energized. The indoor (evaporator) fan contactor (IFC), outdoor fan contactor (OFC), and compressor contactor no. 1 (C1) are energized and evaporator-fan motor, condenser fans and compressor no. 1 start. The condenser-fan motors run continuously while unit is cooling. If the thermostat calls for a second stage of cooling by energizing Y2, compressor contactor no. 2 (C2) is energized and compressor no. 2 starts.

HEATING, UNITS WITHOUT ECONOMIZER (If Optional or Accessory Heater is Installed) — Upon a call for heating through terminal W1, IFC and heater contactor no. 1 (HC1) are energized. On units equipped for 2 stages of heat, when additional heat is needed HC2 is energized through W2.

COOLING, UNITS WITH DURABLADE ECONOMIZER — When the outdoor-air temperature is above the OAT (outdoor-air thermostat) setting and the room thermostat calls for cooling, compressor contactor no. 1 and OFC (outdoor-fan contactor) are energized to start compressor no. 1 and the condenser-fan motors. The evaporator-fan motor is energized and the economizer damper moves to the minimum position. Upon a further call for cooling, compressor contactor no. 2 will be energized, starting compressor no. 2. After the thermostat is satisfied, the damper moves to the fully closed position.

When the outdoor-air temperature is below the OAT setting and the thermostat calls for cooling, the economizer dampers move to the minimum position. If the supply-air temperature is above 57 F, the damper continues to open until it reaches the fully open position or until the supply-air temperature drops below 57 F .

When the supply-air temperature falls to between 57 F and 52 F, the damper will remain at an intermediate open position. If the supply-air temperature falls below 52 F, the damper will modulate closed until it reaches the minimum position or until the supply-air temperature is above 52 F .

If the outdoor air alone cannot satisfy the cooling requirements of the conditioned space, economizer cooling is integrated with mechanical cooling, providing second-stage cooling. Compressor no. 1 and the condenser fan will be energized and the position of the economizer damper will be determined by the supply-air temperature. Compressor no. 2 is locked out.

Page 35

When the second stage of cooling is satisfied, the compressor and condenser-fan motors will be deenergized. The damper position will be determined by the supply-air temperature.

When the first stage of cooling is satisfied and the indoor (evaporator) fan motor is deenergized, the damper will move to fully closed position.

COOLING, UNIT WITH ECONOMI$ER — When the outdoor-air temperature (OA T ) is above the ECON SP set point and the room thermostat calls for Stage 1 cooling (R to G + Y1), the indoor-fan motor (IFM) is energized and the EconoMi$er damper modulates to minimum position. The compressor contactor and OFC are energized starting the compressor and outdoor-fan motors (OFM). After the thermostat is satisfied, the damper modulates to the fully closed position when the IFM is deenergized.

When the OAT is below the ECON SP setting and the room thermostat calls for Stage 1 cooling (R to G + Y1), the EconoMi$er modulates to the minimum position when the IFM is energized. The EconoMi$er provides Stage 1 of cooling by modulating the return and outdoor air dampers to maintain a 55 F supply air set point. If the supply-air temperature (SAT) is greater than 57 F, the EconoMi$er modulates open, allowing a greater amount of outdoor air to enter the unit. If the SAT drops below 53 F , the outdoor-air damper modulates closed to reduce the amount of outdoor air. When the SAT is between 53 and 57 F , the EconoMi$er maintains it s position.

If outdoor air alone cannot satisfy the cooling requirements of the conditioned space, and the OAT is above the MECH CLG LOCKOUT set point, the EconoMi$er integrates free cooling with mechanical cooling. This is accomplished by the strategies below .

NOTE: Compressors have a two-minute Minimum On, Minimum Off, and Interstage delay timer.

1. If Y1 is energized, and the room thermostat calls for Y2 (2-stage thermostat), the compressor number 1 and OFM are energized. The position of the EconoMi$er damper is maintained at its current value.

2. If Y1 is energized for more then 20 minutes, and Y2 is not energized (whether or not a 2-stage thermostat is used), compressor no. 1 and OFM are energized. The position of the EconoMi$er damper is maintained at its current value.

3. If Y1 is energized, and compressor no. 1 is already energized and the room thermostat calls for Y2, compressor no. 1 continues to operate. If Y2 remains energized for more than 20 minutes, compressor no. 2 is energized.

NOTE: Compressor no. 2 cannot be energized unless there is a signal for Y2 from the space thermostat.

4. If compressor no. 2 is energized, and the Y2 signal from the thermostat is satisfied, compressor no. 1 and 2 are deenergized. If the thermostat reenergizes Y2 will start compressor no. 1 and (after a 20-minute interstage delay) compressor no. 2.

5. If compressor no. 1 is energized and the thermostat is satisfied, compressor no. 1, the OFM, and IFM are deenergized and the EconoMi$er modulates closed.

When the OAT is below the MECH CLG LOCKOUT set

point, the compressors remain off. HEATING, UNITS WITH DURABLADE ECONOMIZER

OR ECONOMI$ER — When the room thermostat calls for heat, the heating controls are energized as described in the rooftop unit Installation, Start-Up and Service Instructions.The IFM is energized and the Durablade economizer or EconoMi$er damper modulates to the minimum position. When the thermostat is satisfied, the damper modulates closed.

SERVICE

When servicing unit, shut off all electrical power to unit to avoid shock hazard or injury from rotating parts.

Cleaning —

ning of each heating and cooling season or more frequently as operating conditions require.

EVAPORATOR COIL

1. Turn unit power off, tag disconnect. Remove evaporator coil access panel.

2. If economizer is installed, remove economizer by disconnecting Molex plug and removing economizer mounting screws. Refer to Accessory Economizer Installation Instructions or Optional Economizer sections, on pages 12 and 15 for more details.

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 water. For best results, backflush toward return-air section to remove foreign material.

5. Flush condensate pan after completion.

6. Reinstall economizer and filters.

7. Reconnect economizer wiring.

8. Replace access panels.

CONDENSER COIL — Inspect coil monthly. Clean condenser coil annually, or as required by location and outdoor-air conditions.

One-Row Coil Clean the outer surfaces with a stiff brush in the normal m anner. It is not necessary to remove top panel.

Two-Row Coils

1. Turn off unit power, tag disconnect.

2. Remove top panel screws on condenser end of unit.

3. Remove condenser coil corner post. See Fig. 46. To hold top panel open, place coil corner post between top panel and center post. See Fig. 47.

4. Remove screws securing coil to center post.

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. 48.

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 i n the normal manner.

7. Secure inner and outer coil rows together with fastener removed in Step 5.

8. Reposition the outer coil section and remove the coil corner post between the top panel and center post. Reinstall the coil corner post and replace all screws.

CONDENSATE DRAIN — Check and clean each year at start of cooling season. In winter, keep drain dry or 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 same dimensions as original filters.

Inspect unit interior and exterior at the begin-

— Wash coil with commercial coil cleaner.

— Clean coils as follows:

Page 36

Fig. 46 — Cleaning Condenser Coil

Fig. 49 — Condenser Fan Adjustment

50TFF

FAN HEIGHT

‘‘A’’, in.

208/230 V

2.75

460 and 575 V

3.50

inspections or as conditions require. Replace belt or adjust as necessary. Refer to Step 7 — Adjust Evaporator-Fan Speed on page 20 for proper adjustment procedures and belt tensi on.

Condenser-Fan Adjustment (Fi g. 49)

1. Shut off unit power supply, tag disconnect.

2. Remove condenser-fan assembly (grille, motor, motor cover, and fan) and loosen fan hub setscrews.

3. Adjust fan height as shown in Fig. 49.

4. Tighten setscrews.

5. Replace condenser-fan assembly.

Fig. 47 — Propping Up Top Panel

Fig. 48 — Separating Coil Sections

Manual Outdoor-Air Damper —

If outdoor-air damper blade adjustment is required, see Manual Outdoor-Air Damper section on page 11.

Economizer Adjustment —

Refer to Optional Econo-

mizer sections on pages 12 and 15.

Condenser Coil Grille —

Condenser coil grille is ship ped

factory-installed. No adjustments are required.

Refrigerant Charge

CHECKING AND ADJUSTING REFRIGER ANT CHARGE — The refrigerant system is fully charged with R-22 refrigerant, tested, and factory-sealed. Unit must operate in Cooling mode a minimum of 10 minutes before checking charge.

NOTE: Adjustment of the refrigerant charge is not required unless the unit is suspected of not having the proper R-22 charge.

A superheat charging chart is attached to the outside of the service access panel. The chart includes the required suction line temperature at given suction line pressures and outdoor ambient temperatures.

An accurate superheat, thermocouple- or thermistor-type thermometer, and a gage manifold are required when using the superheat charging method for evaluating the unit charge. Do

not use mercury or small dial-type thermometers because they are not adequate for this type of measur ement.

Lubrication

COMPRESSORS — Each compressor is charged with correct amount of oil at the factory.

FAN-MOTOR BEARINGS — Fan-motor bearings are of

the permanently lubricated type. No further lubrication is required. No lubrication of condenser- or evaporator-fan motors

is required.

Evaporator Fan Belt Inspection —

tion of evaporator belt or tension during heating and cooling

Check condi-

When evaluating the refrigerant charge, an indicated adjustment to the specified factory charge must always be very minimal. If a substantial adjustment is indicated, an abnormal condition exists somewhere in the cooling system, such as insufficient airflow across eit her coil or both coils.

Proceed as follows:

1. Remove caps from low- and high-pressure service fittings.

Page 37

2. Using hoses with valve c ore depressors, attach low- and

Fig. 50 — Cooling Charging Chart; 50TFF008

high-pressure gage hoses to low- and high-pressure service fittings, respectively .

3. Start unit in Cooling Mode and let unit run until system pressures stabilize.

4. Measure and record the following: a. Outdoor ambient-air temperature (F db). b. Evaporator inlet-air temperature (F wb). c. Suction-tube temperature (F) at low-side service

fitting.

d. Suction (low-side) pressure (psig).

5. Using “Cooling Charging Charts” compare outdoor-air temperature (F db) with the suction line pressure (psig) to determine desired system operating suction line temperature. See Fig. 50-53.

6. Compare actual suction-tube temperature with desired suction-tube temperature. Using a tolerance of ± 3° F, add refrigerant if actual temper ature i s more than 3° F higher than proper suction-tube temperature, or remove refrigerant if actual temperature is more than 3° F lower than required suction-tube temperature.

TO USE COOLING CHARGING CHARTS — This method is to be used in Cooling mode only. Take the outdoor ambient temperature and read the suction pressure gage. Refer to appropriate chart to determine what suction temperature should be. If suction temperature is high, add refrigerant. If suction temperature is low, carefully recover some of the charge. Recheck the su ct ion p re ssu re as ch ar g e is adj ust ed.

EXAMPLE: (Fig. 53; Circuit 1)

Outdoor T emperature. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .85 F

Suction Pressure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 psig

Suction T emperature should be. . . . . . . . . . . . . . . . . . . . . . .54 F

(Suction T emperature may vary ± 3° F.)

High-Pressure Switch —

Located on the compressor hot gas line is a high-pressure switch containing a Schrader core depressor. This switch opens at 428 psig and closes at 320 psig. No adjustment is necessary. Refer to Table 1.

Loss-of-Charge Switch —

Located on the condenser liquid line is a low-pressure switch which functions as a lossof-charge switch. This switch contains a Schrader core depressor. This switch opens at 7 psig and closes at 22 psig. No adjustment is necessary. Refer to Table 1.

Freezestat —

Located on the “hair pin” end of the evaporator coil is a bimetal temperat ure sensing switch. This swit ch protects the evaporator coil from freeze-up due to lack of airflow . The switch opens at 30 F and clos es at 45 F. No adjustment is necessary. Refer to Table 1.

CIRCUIT NO. 1

CIRCUIT NO. 2

Fig. 51 — Cooling Charging Chart; 50TFF009

Page 38

CIRCUIT NO. 1

Fig. 52 — Cooling Charging Chart; 50TFF012

CIRCUIT NO. 2

Fig. 53 — Cooling Charging Chart; 50TFF014

Page 39

PROBLEM CAUSE REMEDY

Compressor and condenser fans will not start.

Compressor will not start but condenser fans run.

Compressor cycles (other than normally satisfying thermostat).

Compressor operates continuously.

Compressor makes excessive noise (50TFF014 scroll only).

Excessive head pressure.

Head pressure too low.

Excessive suction pressure.

Suction pressure too low.

Compressor no. 2 will not run.

TROUBLESHOOTING

T ables 21-23 are provided for troubleshooting the unit and economizer.

Table 21 — Cooling Service Analysis

Power failure. Call power company. Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker. Defective thermostat, contactor, transformer, or

control relay. Insufficient line voltage. Determine cause and correct. Incorrect or faulty wiring. Check wiring diagram and rewire correctly. Thermostat setting too high. Lower thermostat setting below room temperature. Faulty wiring or loose connections in compressor

circuit. Compressor motor burned out, seized, or internal

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

relay. One leg of 3-phase power dead. Replace fuse or reset circuit breaker.

Refrigerant overcharge or undercharge. R e cover refrigerant, evacuate system, and recharge Defective compressor. Replace and determine cause.

Insufficient line voltage. Determine cause and correct. Blocked condenser. Determine cause and correct. Defective run/start capacitor, overload, or start

relay. Defective thermostat. Replace thermostat. Faulty condenser-fan motor or capacitor. Replace. Restriction in refrigerant system. Locate restriction and remove. Dirty air filter. Replace filter. Unit undersized for load. Decreas e load or increase unit size. Thermostat set too low. Reset thermostat. Low refrigerant charge. Locate leak, repair, and recharge. Leaking valves in compressor. Replace compressor. Air in system. Recover refrigerant, evacuate system, and recharge. Condenser coil dirty or restricted. Clean coil or remove restriction. Compressor rotating in wrong direction Reverse the 3-phase power leads as described in

Dirty air filter. Replace filter. Dirty condenser coil. Clean coil. Refrigerant overcharged. Remove excess refrigerant. Air in system. Recover refrigerant, evacuate system, and recharge. Condenser air restricted or air short-cycling. Deter m ine cause and correct. Outdoor fan contactor not energized. Verify outdoor fan coil receiving 24 vac and high voltage

Low refrigerant charge. Check for leaks, repair, and recharge. Compressor valves leaking. Replace compressor. Restriction in liquid tube. Remove restriction. High heat load. Check for source and eliminate. Compressor valves leaking. Replace compressor. Refrigerant overcharged. Recover excess refrigerant. Dirty air filter. Replace filter. Low refrigerant charge. Check for leaks, repair, and recharge. Metering device or low side restricted. Remove source of restriction. Insufficient evaporator airflow. Increase air quantity. Check filter and replace if

Temperature too low in conditioned area. Reset thermostat. Field-installed filter drier restricted. Replace. Unit in economizer mode. Proper operation; no remedy necessary.

Replace component.

Check wiring and repair or replace. Determine cause. Replace compressor. Determine cause and replace.

Determine cause. to nameplate.

Determine cause and replace.

Start-Up section, page 34.

contacts close.

necessary.

Page 40

Table 22 — Durablade Economizer Service Analysis

PROBLEM CAUSE REMEDY

Damper does not open.

Economizer operation limited to minimum position.

Damper does not close.

Economizer damper does not close on power loss.

LEGEND

Common Power

C1 —

Enthalpy Control

EC —

Indoor (Evaporator) Fan Contactor

IFC —

Indoor (Evaporator) Fan On

IFO —

Indoor (evaporator) fan is off. 1. Check to ensure that 24 vac is present at terminal C1 on the IFC or that

No power to economizer motor.

Economizer motor failure. If the indoor (evaporator) fan and economizer motor are energized, verify that

OAT or EC set too high. 1. Set at correct temperature (3 F below indoor space temperature).

Verify economizer control board is correctly wired and works properly.

Check SAT. 1. After verifying that the OAT and EC settings and the economizer control

Incorrect wiring of economizer.

Verify economizer control board is functioning properly.

Check SAT. 1. After verifying that the wiring is correct and the economizer control board is

Economizer motor failure. If economizer control board and SAT are functioning properly, verify that there is

Verify that close-on-powerloss and economizer control board are functioning properly.

OAT — PL — SAT — SW —

Outdoor-Air Thermostat Plug Supply-Air Thermostat Economizer Position Switch

24 vac is present at the IFO terminal. Check whether 24 vac is present at PL6-1 (red wire) and/or PL6-3 (black wire). If 24 vac is not present, check wiring (see unit label diagram).

2. Check proper thermostat connection to G on the connection board.

1. Check that SW3 is properly making contact with the damper blade. Check that SW1 is in the NC (normally closed) position.

2. Check diode D1. If diode is not functioning properly, replace control board.

3. Confirm that the economizer control board is grounded properly at PL6-4 (brown wire) and at brown terminal of the economizer control board (brown wire). The economizer motor must also be grounded properly at the negative motor terminal (brown wire).

4. Verify SW1 and SW3 are working and wired properly (see unit label diagram).

5. Check for 24 vac input at both PL6-1 (red wire) and PL6-3 (black wire). If 24 vac not present, check unit wiring (see unit label diagram). If 24 vac is found in both places, check for 24 vac at the yellow terminal of the economizer control board (yellow wire). If 24 vac power is not present, replace the economizer control board.

there is a minimum of 18 vdc at the positive motor terminal. If the motor is not operating, replace the motor.

2. Check OAT or EC by setting above outdoor temperature or humidity level. If the OAT or EC switches do not close, replace OAT or EC.

1. Perform the following tests when OAT or EC is closed, Y1 is called for, and damper is at minimum position. Confirm 24 vac on gray terminal of the economizer control board (gray wire). If 24 vac is not present, check wiring (see unit label diagram).

2. Verify that SW1 and SW3 are wired correctly and working properly (see unit label diagram).

3. Check to ensure that 24 vac exists at PL6-2 (blue wire). If 24 vac is not present, check wiring (see unit wiring label diagram).

4. Check 24 vac output at PL6-10 (white wire). If 24 vac is not present, replace economizer control board.

board wiring are correct, check to ensure that the 24 vac terminal of the SAT has 24 vac (white wire). If OAT, EC, and control board are functioning and wired properly and no 24 vac exists, check wiring (see unit label diagram).

2. If supply-air temperature is greater than 57 F, 24 vac should be found at terminal T2 on the SAT (pink wire). If 24 vac is not present, replace SAT.

1. Verify that SW2 and SW4 are wired and working properly (see unit label diagram).

2. Check diode D2. If diode is not functioning properly, replace control board.

1. After verifying that the wiring is correct, modulate the damper to the minimum position. Remove the calls for G (evaporator fan).

2. If the damper does not move, check for 24 vac at PL6-1 (red wire). If 24 vac is not present, check wiring (see unit label diagram).

3. If damper still does not move, check for 24 vac at blue terminal of economizer control board (blue wire). If 24 vac is not present, replace the economizer circuit board.

functioning properly , place the OAT or EC switch in the closed position. Place a call for Y1 and open the damper to the fully open position. Confirm that the 24 vac terminal of the SAT has 24 vac (white wire). If 24 vac is not present, check wiring (see unit label diagram).

2. If supply-air temperature is less than 52 F, 24 vac should be found at terminal T1 on the SAT (violet wire). If 24 vac not found, replace SAT.

a minimum of 18 vdc at the positive motor terminal. If a minimum of 18 vdc is present and the motor is still not operating, replace the motor.

1. Check voltage potential across batteries. If lower than 14 vdc, replace closeon-power-loss power supply (9-v alkaline batteries). Check this emergency power supply on a regular basis or whenever the filters are changed.

2. If the close-on-power-loss and economizer control board are functioning properly, check for 14 vdc or higher at the blue terminal of the economizer control board (blue wire) when power is disconnected from unit. If 14 vdc is not present, replace the control board.

Page 41

Table 23 — EconoMi$er Service Analysis

PROBLEM CAUSE REMEDY

Damper does not open.

EconoMi$er operation limited to minimum position.

Damper position less than minimum position set point.

Damper does not return to minimum position.

Damper does not close on power loss.

LEGEND

Indoor-Fan Motor

IFM —

Indoor (evaporator) fan is off.

No power to EconoMi$er controller.

No power to G terminal.

Controller fault. If STATUS light is flashing one flash, the EconoMi$er controller is experiencing a fault

Thermostat fault. If STATUS light is flashing two flashes , the EconoMi$er controller senses the thermostat is

Actuator fault. Check the wiring between the EconoMi$er controller and the actuator. Hold CONFIG

Minimum position set incorrectly.

EconoMi$er changeover set point set too high or too low.

Supply air temperature sensor faulty.

OAT sensor faulty. If STATUS light is flashing five flashes, the OAT (outdoor-air temperature) sensor is faulty. Supply air low limit

strategy controlling.

ventilation

strategy controlling. Damper travel is

restricted.

Check to ensure that 24 vac is present at Terminal C1 (common power) on the IFC (indoor [evaporator] fan contactor) or that 24 vac is present at the IFO (indoor [evaporator] fan on) terminal. Check whether 24 vac is present at PL (plug) 6-1 (red wire) and/or PL6-3 (black wire). If 24 vac is not present, check wiring (see unit label diagram).

Check proper thermostat connection to G on the connection board. Check to ensure that 24 vac is present across terminals 24 VAC and 24 v COM on the

EconoMi$er control. If 24 vac is not present, check wiring (see unit label diagram). If 24 vac is present, status light should be on constantly.

If IFM is on, check to ensure 24 vac is present on G terminal of the EconoMi$er controller. If 24 v ac is not present, check wiring (see unit label diagram).

condition. Cycle power to the controller. If condition continues, replace the EconoMi$er controller.

wired incorrectly. Check wiring between the thermostat and the connection board in the electrical panel. The fault condition is caused by Y2 being energized before Y1.

button between three and ten seconds to verify the actuator’s operation. (This process takes three minutes to complete.)

Verify that the MIN POS (%) is set greater than zero. Adjust MIN POS (%) to 100% to verify operation, and then set to correct setting.

Set at correct value. See Table 2.

If STATUS light is flashing four flashes, the supply air temperature sensor is faulty. Check wiring or replace sensor.

Check wiring or replace sensor. The supply air temperature is less than 45 F, causing the minimum position to decrease.

Refer to the Start-Up instructions. Verify correct setting of MIN POS (%). If correct, EconoMi$er is operating correctly .

If a CO2 sensor is being used, and the damper position is greater than minimum position, the ventilation control strategy is controlling. Refer to the Start-Up instructions. EconoMi$er is operating correctly.

Check to ensure the damper is not blocked.

Page 42

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

Book 1 4 Tab 1b 6b

PC 111 Catalog No. 535-00010 Printed in U.S.A. Form 50TFF-2SI Pg 42 8-00 Replaces: New

Page 43

Page 44

START-UP CHECKLIST

(Remove and Store in Job File)

I. PRELIMINARY INFORMATION

MODEL NO.: __________________________________ SERIAL NO.: ______________________________________ DATE: ________________________________________ TECHNICIAN:_____________________________________

BUILDING LOCA TION:_____________________________

II. PRE-START-UP (insert checkmark in box as each item is completed)



REMOVE COMPRESSOR TIEDOWN BANDS (SIZE 014 ONLY) PER INSTALLATION INSTRUCTIONS VERIFY THA T CONDENSATE CONNECTION IS INST ALLED AS SHOWN IN THE INSTALLATION



INSTRUCTIONS CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS



CHECK THAT INDOOR AIR FILTERS ARE CLEAN AND IN PLACE



VERIFY THA T UNIT INSTALLATION IS LEVEL WITHIN TOLERANCES LISTED IN THE



INSTALLA TION INSTR UCTIONS CHECK F AN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW TIGHTNESS



CHECK PULLEY ALIGNMENT AND BEL T TENSION; REFER TO INSTALLATION INSTRUCTIONS



III. START-UP

ELECTRICAL

SUPPLY VOLTAGE L1-L2 L2-L3 L3-L1 CIRCUIT NO. 1 COMPRESSOR AMPS L1 L2 L3 CIRCUIT NO. 2 COMPRESSOR AMPS L1 L2 L3 INDOOR FAN AMPS L1 L2 L3

TEMPERATURES

BOTH CIRCUITS OPERATING

OUTDOOR-AIR TEMPERATURE DB RETURN-AIR TEMPERA TURE DB WB COOLING SUPPLY AIR DB WB

REFRIGERANT

CIRCUIT NO. 1 CIRCUIT NO. 2 REFRIGERANT SUCTIO N PSIG PSIG REFRIGERANT TEMPERA TURE SUCTION °F

REFRIGERANT LIQUID LINE PSIG PSIG REFRIGERANT TEMPERA TURE LIQUID LINE



VERIFY REFRIGERANT CHARGE USING COOLING CHARGING CHARTS ON PAGES 37-38

(COOLING MODE ONLY)



VERIFY 3-PHASE SCROLL COMPRESSOR IS ROTATING IN THE CORRECT DIRECTION

CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE

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

Book 1 4 Tab 1b 6b

PC 111 Catalog No. 535-00010 Printed in U.S.A. Form 50TFF-2SI Pg CL-1 8-00 Replaces: New

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