Carrier 40Ru Users Manual 07SI

40RU to the manual 7efdd1e1-8a5d-4c47-a38a-d11abea60b7f

2015-01-24

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Page Count: 40

40RU

Packaged Air---Handling Units

60 Hz

With PuronR(R---410A) Refrigerant

Sizes 25, 28, 30

Installation, Start---Up and

Service Instructions

TABLE OF CONTENTS

SAFETY CONSIDERATIONS 1...................

PRE--INSTALLATION 2.........................

Moving and Storage 2..........................

Rigging 2....................................

INSTALLATION 2–22..........................

General 2....................................

Uncrating 2..................................

Accessories 2.................................

Unit Positioning 11............................

Unit Isolation 13..............................

Refrigerant and Chilled Water Piping Access 13.....

Refrigerant Piping 13..........................

Chilled Water Piping 17........................

Condensate Drain 18...........................

Fan Motors and Drives 18.......................

Power Supply and Wiring 19....................

Connecting Ductwork 21.......................

Return--Air Filters 21..........................

START--UP 23.................................

SERVICE 23–36...............................

Panels 23....................................

Fan Motor Lubrication 24.......................

Fan Shaft Bearings 24..........................

Centering Fan Wheel 24........................

Fan Shaft Position Adjustment 24................

Individual Fan Wheel Adjustment 25..............

Fan Belts 25.................................

Fan Rotation 25...............................

Fan Pulley Alignment 25.......................

Pulley and Drive Adjustment 25..................

Condensate Drains 25..........................

Return--Air Filters 25..........................

Chilled Water Coil Freeze Protection 26...........

Coil Removal 26..............................

Cleaning Cooling Coil 26.......................

Cleaning Insulation 26.........................

Replacing Filters 26...........................

START--UP CHECKLIST 39--40..................

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service,

maintenance, or use can cause explosion, fire, electrical

shock or other conditions which may cause personal

injury or property damage. Consult a qualified installer,

service agency, or your distributor or branch for

information or assistance. The qualified installer or

agency must use factory--authorized kits or accessories

when modifying this product. Refer to the individual

instructions package

Follow all safety codes. Wear safety glasses and work

gloves. Use quenching cloths for brazing operations and

have a fire extinguisher available. Read these instructions

thoroughly and follow all warnings or cautions attached to

the unit. Consult local building codes and appropriate

national electrical codes (in USA, ANSI/NFPA70,

National Electrical Code (NEC); in Canada, CSA C22.1)

for special requirements.

It is important to recognize safety information. This is the

safety--alert symbol . When you see this symbol on the

unit and in instructions or manuals, be alert to the

potential for personal injury.

Understand the signal words DANGER, WARNING,

CAUTION, and NOTE. These words are used with the

safety--alert symbol. DANGER identifies the most serious

hazards which will result in severe personal injury or

death. WARNING signifies hazards which could result in

personal injury or death. CAUTION is used to identify

unsafe practices, which may result in minor personal

injury or product and property damage. NOTE is used to

highlight suggestions which will result in enhanced

installation, reliability, or operation.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could cause in personal

injury or death.

Before performing service or maintenance operations

on unit, always turn off main power switch to unit and

install lockout tag. Unit may have more than one

power switch.

!WARNING

UNIT OPERATION AND SAFETY HAZARD

Failure to follow this warning could cause in personal

injury,death and/or equipment damage.

PuronR(R--410A) refrigerant systems operate at

higher pressures than standard R--22 systems. Do not

use R--22 service equipment or components on Puron

refrigerant equipment.

!WARNING

PERSONAL INJURY AND ENVIRONMENTAL

HAZARD

Failure to follow this warning could cause in personal

injury or death.

Relieve pressure and recover all refrigerant before

system repair or final unit disposal.

Wear safety glasses and gloves when handling

refrigerants. Keep torches and other ignition sources

away from refrigerants and oils.

!WARNING

CUT HAZARD

Failure to follow this caution may result in personal

injury.

Sheet metal parts may have sharp edges or burrs. Use

care and wear appropriate protective clothing, safety

glasses and gloves when handling parts and servicing

40RU units.

CAUTION

UNIT OPERATION HAZARD

Failure to follow this caution could cause equipment

damage.

Ensure voltage listed on unit data plate agrees with

electrical supply provided for the unit.

CAUTION

PRE--INSTALLATION

1. The power supply (v, ph, and Hz) must correspond to

that specified on unit rating plate.

2. The electrical supply provided by the utility must be

sufficient to handle load imposed by this unit.

3. Refer to Installation, General section (page 2) and

Fig. 1 and Fig. 2 for locations of electrical inlets, con-

densate drain, duct connections, and required clear-

ances before setting unit in place.

4. This installation must conform with local building

codes and with the NEC (National Electrical Code) or

ANSI (American National Standards Institute)/NFPA

(National Fire Protection Association) latest revision.

Refer to provincial and local plumbing or wastewater

codes and other applicable local codes.

Moving and Storage -- To transfer unit from truck to

storage site, use a fork truck. Do not stack units more than

2 high during storage. If unit is to be stored for more than

2 weeks before installation, choose a level, dry storage

site free from vibration. Do not remove plastic wrap or

skid from unit until final installation.

Rigging -- All 40RU Series units can be rigged by using

the shipping skid. Units are shipped fully assembled. Do

not remove shipping skids or protective covering until

unit is ready for final placement; damage to bottom panels

can result. Use slings and spreader bars as applicable to

lift unit.

INSTALLATION

General -- Allow the following clearances for service

access and airflow:

SRear: 3 ft (914 mm) [21/2ft (762 mm) with electric heat

accessory]

SFront: 21/2ft (762 mm)

SRight Side: 31/2ft (1067 mm)

SLeft Side: 21/2ft (762 mm)

For units equipped with an economizer, refer to the

accessory installation instructions for additional clearance

requirements. Be sure floor, wall, or ceiling can support

unit weight (Tables 1A – 1F). See Fig. 1 and Fig. 2 for

dimensions.

Uncrating -- Move unit as near as possible to final

location before removing shipping skid.

Remove metal banding, top skid, and plastic wrap.

Examine unit for shipping damage. If shipping damage is

evident, file claim with transportation agency. Remove

base skid just prior to actual installation.

Check nameplate information against available power

supply and model number description in Fig. 3.

NOTE: Be sure to remove the styrofoam shipping pad

from the thermostatic expansion valve (TXV). Verify that

it has been removed. See Fig. 5.

Accessories -- Refer to instructions shipped with each

accessory for specific information.

40RU

Table 1A — 40RUA Physical Data, English — Cooling Units

UNIT 40RUA* 25 28 30

NOMINAL CAPACITY (Tons) 20 25 30

OPERATING WEIGHT (lb)

Base Unit with TXV 730 1050 1062

Plenum 225 325 325

FANS

Qty...Diam. (in.) 2...15 2...18 2...18

Nominal Airflow (cfm) 8000 10000 12000

Airflow Range (cfm) 6000 – 10000 7500 – 12500 9000 – 15000

Nominal Motor Hp (Standard Motor)

208/230---3---60 and 460---3---60 5.0 7.5 10.0

5 7 5 --- 3 --- 6 0 5.0 7.5 10.0

Motor Speed (rpm)

208/230---3---60 and 460---3---60 1745 1745 1745

5 7 5 --- 3 --- 6 0 1745 1755 1755

REFRIGERANT R--- 410A

Operating charge (lb)

(approx per circuit){3.5 4.5 5.0

DIRECT---EXPANSION COIL Enhanced Copper Tubes, Aluminum Sine---Wave Fins

Max Working Pressure (psig) 650

Face Area (sq ft) 19.88 24.86 29.83

No. of Splits 2 2 2

No. of Circuits per Split 18 20 24

Split Type...Percentage Face...50/50

Rows...Fins/in. 4...15 4...15 4...15

PIPING CONNECTIONS,

Quantity...Size (in.)

DX Coil — Suction (ODF) 2...11/82...13/82...13/8

DX Coil — Liquid Refrigerant (ODF) 2...5/8

Steam Coil, In (MPT) 1...21/2

Steam Coil, Out (MPT) 1...1/2

Hot Water Coil, In (MPT) 1...2

Hot Water Coil, Out (MPT) 1...2

Condensate (PVC) 1...11/4ODM/1 IDF

FILTERS Throwaway — Factory Supplied

Quantity...Size (in.) 4...16 x 20 x 2

4...16 x 24 x 2

4...20 x 24 x 2

4...20 x 25 x 2

Access Location Either Side

STEAM COIL}

Max Working Pressure (psig at 260° F) 20

To ta l F a ce A r e a ( s q f t ) 13.33 15.0 15.0

Rows...Fins/in. 1...10 1...10 1...10

HOT WATER COIL}

Max Working Pressure (psig) 150

To ta l F a ce A r e a ( s q f t ) 13.33 15.0 15.0

Rows...Fins/in. 2...8.5 2...12.5 2...12.5

Water Volume

(gal) 13.9 14.3

(ft3)1.90

LEGEND

DX — Direct Expansion

TXV — Thermostatic Expansion Valve

{Units are shipped without refrigerant charge.

}Field installed accessory only.

40RU

Table 1B — 40RUA Physical Data, SI — Cooling Units

UNIT 40RUA* 25 28 30

NOMINAL CAPACITY (kW) 70 87 105

OPERATING WEIGHT (kg)

Base Unit with TXV 331 477 482

Plenum 102 148 148

FANS

Qty...Diam. (mm) 2...381 2...457 2...457

Nominal Airflow (L/s) 3775 4119 5663

Airflow Range (L/s) 2831 – 4719 3539 – 5899 4247 – 7079

Nominal Motor kW (Standard Motor)

208/230---3---60 and 460---3---60 3.73 5.60 7.46

5 7 5 --- 3 --- 6 0 3.73 5.60 7.46

Motor Speed (r/s)

208/230---3---60 and 460---3---60 29.1 29.1 29.1

5 7 5 --- 3 --- 6 0 29.1 29.3 29.3

REFRIGERANT R--- 410A

Operating charge (kg)

(approx per circuit){1.59 2.04 2.27

DIRECT---EXPANSION COIL Enhanced Copper Tubes, Aluminum Sine---Wave Fins

Max Working Pressure (kPag) 4481

Face Area (sq m) 1.85 2.30 2.77

No. of Splits 2 2 2

No. of Circuits per Split 18 20 24

Split Type...Percentage Face...50/50

Rows...Fins/m 4...591 4...591 4...591

PIPING CONNECTIONS,

Quantity...Size (in.)

DX Coil — Suction (ODF) 2...11/82...13/82...13/8

DX Coil — Liquid Refrigerant (ODF) 2...5/8

Steam Coil, In (MPT) 1...21/2

Steam Coil, Out (MPT) 1...1/2

Hot Water Coil, In (MPT) 1...2

Hot Water Coil, Out (MPT) 1...2

Condensate (PVC) 1...11/4ODM/1 IDF

FILTERS Throwaway — Factory Supplied

Quantity...Size (mm.) 4...406 x 508 x 51

4...406 x 610 x 51

4...508 x 610 x 51

4...508 x 635 x 51

Access Location Either Side

STEAM COIL}

Max Working Pressure (kPag at 126° C) 138

To ta l F a ce A r e a ( s q m ) 1.24 1.39 1.39

Rows...Fins/m 1...394 1...394 1...394

HOT WATER COIL}

Max Working Pressure (kPag) 1034

To ta l F a ce A r e a ( s q m ) 1.24 1.39 1.39

Rows...Fins/m 2...335 2...335 2...335

Water Volume

(L) 52.6 54.1

(m3)0.052 0.054

LEGEND

DX — Direct Expansion

TXV — Thermostatic Expansion Valve

{Units are shipped without refrigerant charge.

}Field installed accessory only.

40RU

Table 1C — 40RUQ Physical Data, English — Heat Pump Units

UNIT 40RUQ* 25

NOMINAL CAPACITY (Tons) 20

OPERATING WEIGHT (lb)

Base Unit with TXV 720

Plenum 140

FANS

Qty...Diam. (in.) 2...15

Nominal Airflow (cfm) 8000

Airflow Range (cfm) 6000---10000

Nominal Motor Hp (Standard Motor)

208/230---3---60 and 460---3---60 5.0

5 7 5 --- 3 --- 6 0 5.0

Motor Speed (rpm)

208/230---3---60 and 460---3---60 1745

5 7 5 --- 3 --- 6 0 1745

REFRIGERANT R--- 410A

Operating charge (lb)

(approx per circuit){3.5/3.5

DIRECT---EXPANSION COIL Enhanced Copper Tubes, Aluminum Sine---Wave Fins

Max Working Pressure (psig) 650

Face Area (sq ft) 19.9

No. of Splits 2

No. of Circuits per Split 2

Split Type...Percentage Face....50/50

Rows...Fins/in. 4...15

PIPING CONNECTIONS,

Quantity...Size (in.)

DX Coil — Suction (ODF) 2...11/8

DX Coil — Liquid Refrigerant (ODF) 2...5/8

Steam Coil, In (MPT) 1...21/2

Steam Coil, Out (MPT) 1...11/2

Hot Water Coil, In (MPT) 1...2

Hot Water Coil, Out (MPT) 1...2

Condensate (PVC) 1...11/4ODM/1 IDF

FILTERS Throwaway — Factory Supplied

Quantity...Size (in.) 4...16 x 20 x 2

4...16 x 24 x 2

Access Location RightorLeftSide

STEAM COIL}

Max Working Pressure (psig at 260° F) 20

To ta l F a ce A r e a ( s q f t ) 13.33

Rows...Fins/in. 1...10

HOT WATER COIL}

Max Working Pressure (psig) 150

To ta l F a ce A r e a ( s q f t ) 13.33

Rows...Fins/in. 2...8.5

Water Volume

(gal) 13.9

(ft3)1.85

LEGEND

DX — Direct Expansion

TXV — Thermostatic Expansion Valve

{Units are shipped without refrigerant charge.

}Field installed accessory only.

40RU

Table 1D — 40RUA Physical Data, SI — Heat Pump Units

UNIT 40RUQ* 25

NOMINAL CAPACITY (kW) 70

OPERATING WEIGHT (kg)

Base Unit with TXV 326

Plenum 44

FANS

Qty...Diam. (mm) 2...381

Nominal Airflow (L/s) 3775

Airflow Range (L/s) 2831--- 4719

Nominal Motor kW (Standard Motor)

208/230---3---60 and 460---3---60 3.73

5 7 5 --- 3 --- 6 0 3.73

Motor Speed (r/s)

208/230---3---60 and 460---3---60 29.1

5 7 5 --- 3 --- 6 0 29.1

REFRIGERANT R--- 410A

Operating charge (kg)

(approx per circuit){1.59/1.59

DIRECT---EXPANSION COIL Enhanced Copper Tubes, Aluminum Sine---Wave Fins

Max Working Pressure (kPag) 4482

Face Area (sq m) 1.85

No. of Splits 2

No. of Circuits per Split 2

Split Type...Percentage Face...50/50

Fins/m 591

PIPING CONNECTIONS,

Quantity...Size (in.)

DX Coil — Suction (ODF) 2...11/8

DX Coil — Liquid Refrigerant (ODF) 2...5/8

Steam Coil, In (MPT) 1...21/2

Steam Coil, Out (MPT) 1...11/2

Hot Water Coil, In (MPT) 1...2

Hot Water Coil, Out (MPT) 1...2

Condensate (PVC) 1...11/4ODM/1 IDF

FILTERS Throwaway — Factory Supplied

Quantity...Size (mm) 4...406 x 610 x 51

4...406 x 508 x 51

Access Location RightorLeftSide

STEAM COIL}

Max Working Pressure (kPag at 126° C) 138

To ta l F a ce A r e a ( s q m ) 1.24

Rows...Fins/m 1...394

HOT WATER COIL}

Max Working Pressure (kPag) 1034

To ta l F a ce A r e a ( s q m ) 1.24

Rows...Fins/m 2...335

Water Volume

(L) 52.6

(m3)0.052

LEGEND

DX — Direct Expansion

TXV — Thermostatic Expansion Valve

{Units are shipped without refrigerant charge.

}Field installed accessory only.

40RU

Table 1E — 40RUS Physical Data, English — Chilled Water Units

UNIT 40RUS* 25 28 30

NOMINAL CAPACITY (Tons) 20 25 30

OPERATING WEIGHT (lb)

Base Unit 683 1035 1042

Plenum 225 325 325

FANS

Qty...Diam. (in.) 2...15 2...18 2...18

Nominal Airflow (cfm) 8000 10000 12000

Airflow Range (cfm) 6000 – 10000 7500 – 12500 9000 – 15000

Nominal Motor Hp (Standard Motor)

208/230---3---60 and 460---3---60 5.0 7.5 10.0

5 7 5 --- 3 --- 6 0 5.0 7.5 10.0

Motor Speed (rpm)

208/230---3---60 and 460---3---60 1745 1745 1745

5 7 5 --- 3 --- 6 0 1745 1755 1755

CHILLED WATER COIL Enhanced Copper Tubes, Aluminum Sine---Wave Fins

Max Working Pressure (psig) 435

Face Area (sq ft) – Upper 11.0 12.4 15.5

Face Area (sq ft) – Lower 8.3 12.4 12.4

Rows...Fins/in. 3...15

PIPING CONNECTIONS,

Quantity...Size (in.)

Chilled Water — In.2...13/8ODM 2...21/8ODM 2...21/8ODM

Chilled Water — Out 2...21/8ODM 2...21/8ODM 2...21/8ODM

Steam Coil, In (MPT) 1...21/2

Steam Coil, Out (MPT) 1...11/2

Hot Water Coil, In (MPT) 1...2

Hot Water Coil, Out (MPT) 1...2

Condensate (PVC) 1...11/4ODM/1 IDF

FILTERS Throwaway — Factory Supplied

Quantity...Size (in.) 4...16 x 20 x 2

4...16 x 24 x 2

4...20 x 24 x 2

4...20 x 25 x 2

Access Location Either Side

STEAM COIL}

Max Working Pressure (psig at 260° F) 20

To ta l F a ce A r e a ( s q f t ) 13.33 15.0 15.0

Rows...Fins/in. 1...10 1...10 1...10

HOT WATER COIL}

Max Working Pressure (psig) 150

To ta l F a ce A r e a ( s q f t ) 13.33 15.0 15.0

Rows...Fins/in. 2...8.5 2...12.5 2...12.5

Water Volume

(gal) 13.9 14.3

(ft3)1.1 1.90

LEGEND

}Field installed accessory only.

40RU

Table 1F — 40RUS Physical Data, SI — Chilled Water Units

UNIT 40RUS* 25 28 30

NOMINAL CAPACITY (kW) 70 87 105

OPERATING WEIGHT (kg)

Base Unit 310 469 473

Plenum 102 148 148

FANS

Qty...Diam. (mm) 2...381 2...457 2...457

Nominal Airflow (L/s) 3775 4719 5663

Airflow Range (L/s) 2831 – 4719 3539 – 5899 4247 – 7079

Nominal Motor kW (Standard Motor)

208/230---3---60 and 460---3---60 3.73 5.60 7.46

5 7 5 --- 3 --- 6 0 3.73 5.60 7.46

Motor Speed (r/s)

208/230---3---60 and 460---3---60 29.1 29.1 29.1

5 7 5 --- 3 --- 6 0 29.1 29.3 29.3

CHILLED WATER COIL Enhanced Copper Tubes, Aluminum Sine---Wave Fins

Max Working Pressure (kPag) 2999

Face Area (sq m) – Upper 1.02 1.15 1.44

Face Area (sq m) – Lower 0.77 1.15 1.15

Rows...Fins/m 3...591 3...591 3...591

PIPING CONNECTIONS,

Quantity...Size (in.)

Chilled Water — In 2...13/8ODM 2...21/8ODM 2...21/8ODM

Chilled Water — Out 2...13/8ODM 2...21/8ODM 2...21/8ODM

Steam Coil, In (MPT) 1...21/2

Steam Coil, Out (MPT) 1...11/2

Hot Water Coil, In (MPT) 1...2

Hot Water Coil, Out (MPT) 1...2

Condensate (PVC) 1...11/4ODM/1 IDF

FILTERS Throwaway — Factory Supplied

Quantity...Size (mm.) 4...406 x 508 x 51

4...406 x 610 x 51

4...508 x 610 x 51

4...508 x 635 x 51

Access Location Either Side

STEAM COIL}

Max Working Pressure (kPag at 125° C) 138

To ta l F a ce A r e a ( s q m ) 1.24 1.39 1.39

Rows...Fins/m 1...394 1...394 1...394

HOT WATER COIL}

Max Working Pressure (kPag) 1034

To ta l F a ce A r e a ( s q m ) 1.24 1.39 1.39

Rows...Fins/m 2...335 2..493 2...493

Water Volume

(L) 52.6 54.1

(m3) 0.052 0.054

LEGEND

}Field installed accessory only.

40RU

UNIT UNIT WEIGHT

lb (kg)

40RUA*25 730 (331)

40RUQ*25 720 (326)

40RUS*25 683 (310)

LEGEND

TXV — Thermostatic Expansion Valve

NOTES:

1. Dimensions in [ ] are in millimeters.

2. Direction of airflow.

3. Recommended clearance:

• Rear: 3 in. [914 mm] (2 ft, 6 in. [762 mm]

with electric heat accessory)

• Front: 2 ft, 6 in. [762 mm]

• Right Side: 2 ft, 6 in. [762 mm]

• Left Side: 2 ft, 6 in. [762 mm]

• Local codes or jurisdiction may prevail.

4. Liquid piping not supplied by Carrier.

5. Duct flange is factory supplied and field

installed.

C10722

Fig. 1 -- Dimensions – Size 25

40RU

6. 40RUS may require alternate or additional

field favricated poping access holes

UNIT

40RUA*28

40RUA*30

40RUS*28

40RUS*30

UNIT WEIGHT

lb (kg)

1050 (477)

1062 (482)

1035 (469)

1042 (473)

LEGEND

TXV — Thermostatic Expansion Valve

NOTES:

1. Dimensions in [ ] are in millimeters.

2. Direction of airflow.

3. Recommended clearance:

• Rear: 3 in. [914 mm] (2 ft, 6 in. [762 mm]

with electric heat accessory)

• Front: 2 ft, 6 in. [762 mm]

• Right Side: 2 ft, 6 in. [762 mm]

• Left Side: 2 ft, 6 in. [762 mm]

• Local codes or jurisdiction may prevail.

4. Liquid piping not supplied by Carrier.

5. Duct flange is factory supplied and field

installed.

C10723

Fig. 2 -- Dimensions – Sizes 28 and 30

40RU

Model Type

40RU = Carrier Fan Coil

PuronrR–410ARefrigerant

Type of Coil

Q = Heat Pump

A = StandardDXCoil

S = Chilled Water Coil

Refrigerant Options

A = None

Nominal Tonnage

25 = 20 Tons

28 = 25 Tons

30 = 30 Tons

Not Used

A=PlaceHolder

Indoor Fan Options

1 = Fan Drive and Motor - Low / Motor Efficiency - Standard

2 = Fan Drive and Motor - Med / Motor Efficiency - Standard

3 = Fan Drive and Motor - High / Motor Efficiency - Standard

Coil Options

A=Al/Cu

Voltage

1 = 575/3/60

5 = 208/ 230/3/60

6 = 460/3/60

Design Rev

– = Catalog Model Number

1 = Design Revision (original)

Not Used

0=PlaceHolder

Not Used

A=PlaceHolder

Service Options

0 = Non-Painted Cabinet

1 = Painted Cabinet

Not Used

A=PlaceHolder

Brand / Packaging

0=Standard

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

40RUAA25A1A6 –0A0A0

_____________ ____

C!0724

Fig. 3 -- Model Number Nomenclature

SETANGISEDNOITISOP

)radnelac lacsif( erutcafunam fo keeW1−2

)ASU ,saxeT ,PTE = G( noitacol gnirutcafunaM5

rebmun laitneuqeS6−10

12345678910

2610G12345

POSITION NUMBER

TYPICAL

Year of manufacture (“10” = 2010)3−4

C!0725

Fig. 4 -- Serial Number Nomenclature

TXV COIL

REMOVE FOAM BLOCK

LEGEND

TXV — Thermostatic Expansion Valve

C10683

Fig. 5 -- Foam Block Location

Unit Positioning -- The unit can be mounted on the floor

for vertical application with return air entering the face of

the unit and supply air discharging vertically through the

top of the unit. The unit can also be applied in a

horizontal arrangement with return air entering

horizontally and the supply air discharging horizontally.

When applying the unit in a horizontal arrangement,

ensure the condensate drain pan is located at the bottom

center of the unit for adequate condensate disposal. See

Fig. 6 for condensate connections for each unit position.

LEGEND

Accessory Line

Alternate Air Intake and Discharge

Air Intake and Discharge

Note: Maintain recommended clearances

per Fig. 1 and Fig. 2

PLUG

PLUG CONDENSATE

DRAIN

C10684

Fig. 6 -- Typical Unit Positioning

40RU

Typical positioning and alternate return air locations are

shown in Fig. 6. Alternate return air locations can be used

by moving the unit panel from the alternate return air

location to the standard return air location. Refer to

overhead suspension accessory drawing (Fig. 7) for

preferred suspension technique. The unit needs support

underneath to prevent sagging.

IMPORTANT: Do NOT attempt to install unit with return

air entering top panel of unit. Condensate will not drain from

unit.

NOTE: Dimensions in [ ] are millimeters

OVERHEAD SUSPENSION ACCESSORY — UNIT SIZE 25

OVERHEAD SUSPENSION ACCESSORY — UNIT SIZES 28, 30

C10728

Fig. 7 -- Preferred Suspension Technique

40RU

Unit Isolation -- Where extremely quiet operation is

essential, install isolators between floor and base of unit,

or between ceiling and top section of unit.

Be sure that unit is level and adequately supported. Use

channels at front and sides of unit for reference points

when leveling.

Refrigerant and Chilled Water Piping Access -- The

40RU Series units come with standard knockouts for

refrigerant and chilled water piping. These knockouts are

located on both sides of the unit for installation flexibility.

The standard knockouts provide sufficient access to the

unit’s coils for all 40RUA*25, 28, and 30 units.

40RUQ*25 units, as well as 40RUS*25, 28, and 30 units

require additional holes which must be field--fabricated to

accommodate the piping. See Fig. 8 for the positions and

dimensions of the additional access holes required for

40RUQ and 40RUS units. Recommended access hole use

is also listed for all units. Note that Fig. 8 shows the

access holes on the control--box side of the unit; this is the

side of the unit with the coil headers, so it is used most

often for piping access.

IMPORTANT: Do not bury refrigerant piping

underground.

Refrigerant Piping -- See Tables 1A–1F for refrigerant

pipe connection sizes. For ease in brazing, it is

recommended that all internal solder joints be made

before unit is placed in final position.

The 40RU direct--expansion units have internal

factory--installed thermostatic expansion valves (TXVs),

distributors, and nozzles for use with R--410A. See Table

2 for part numbers. Knockouts are provided in the unit

corner posts for 40RU refrigerant piping. See Fig. 8,

which also lists recommended knockouts and access holes

to use for each 40RU unit size. Recommended fittings are

listed in Table 3.

The sensor bulb capillary tubes must be routed from the

TXVs inside the unit through one of the piping access

holes. Clamp the TXV sensor bulb on a vertical portion of

the suction line, outside the unit. See Fig. 9.

NOTE: Be sure to remove the styrofoam shipping pad

from the TXV. Verify that it has been removed. See Fig. 5.

IMPORTANT: Never attach the sensor to the suction

manifold. Do NOT mount the sensor on a trapped portion

of the suction line.

The 40RU Series evaporator coils have a face--split

design. Ensure that lower circuit of coil is first on/last off

when connected to the condensing unit and/or system

controls. See Fig. 10.

External TXV equalizer connections are provided and

factory--brazed into the coil suction manifolds.

If suction line must be horizontal, clamp bulb to suction

line at least 45 degrees above bottom, at approximately

the 4 o’clock or 8 o’clock position. See Fig.11.

ABCD

C10727

UNIT USE HOLE

NUMBERS

FIELD -- FABRICATED HOLE DIAMATERS

in. (mm)

FIELD --FABRICATED HOLE POSITION DIMENSIONS

in. (mm)

No. 5 No. 6 No. 7 No. 8 A B C D

40RUA*25, 28, 30 1,2, 3, 4 — — — — — — — —

40RUS*25 4, 5, 6, 7 13/4(44.5) 13/4(44.5) 13/4(44.5) —3.0 (76.2) 6.0 (152.5) 10.5 (266.7) —

40RUQ*25 3{,5,6,7 11/8(28.6) 11/8(28.6) 13/4(44.5) —3.25 (82.6) 6.125 (155.6) 10.38 (263.7)

40RUS*28, 30 5, 6, 7, 8 21/2(63.5) 21/2(63.5) 21/2(63.5) 21/2(63.5) 6.0 (152.5) 9.625 (244.5) 13.38 (339.9) 17.0 (431.8)

{Must be enlarged from 11/8in. (28.6mm) to 13/4in. (44.5mm)

N O T E : A c c e s s h o l e k n o c k o u t s 1 --- 4 a r e f a c t o r y --- su p p l i e d .

Fig. 8 -- Refrigerant and Chilled Water Piping Access Holes

40RU

LEGEND:

TXV – Thermostatic Expansion Valve

NOTE: Component location arrangemetshown for field installation of

sight glasses, solenoid valves, filter driers, and TXV sensing bulbs.

The TXVs and equilizer lines are factory installed.

UPPER

SPLIT

AIRFLOW

LOWER

SPLIT

AIRFLOW

15 DIAMS

MIN 10

DIAMS

8 DIAMS

MIN

TXV

SENSING

BULB

EQUALIZER LINE

SIGHT

GLASS

TXV

SOLENOID

VALVE

FILTER

DRIER

TXV

SENSING

BULB

TXV

8 DIAMS

MIN

15 DIAMS

MIN 10

DIAMS

INDOOR

COIL

EQUALIZER

LINE

C10726

Fig. 9 -- Face--Split Coil Suction and Liquid Line Piping (Typical)

FIRST ON/LAST OFF = B

VERTICAL INSTALLATION

FIRST ON/LAST OFF = A

HORIZONTAL INSTA LLATIO N

C10688

Fig. 10 -- Typical Evaporator Coil Connections (40RU)

LEGEND

TXV — Thermostatic Expansion Valve

NOTE: The 8 o’clock position is shown above.

C10689

Fig. 11 -- TXV Sensing Bulb Location

40RU

Table 2 – Factory--Installed Nozzle and Distributor Data

UNIT COIL TYPE

STD

TXV

Qty...Part No.

DISTRIBUTOR

Qty...Part No.

FEEDER TUBES

PER DISTRIBUTOR{

Qty...Size (in.)

NOZZLE

Qty...Part No.

40RUA*25 4Row 2 . . . B B I Z E --- 8 --- G A 2...D196--- 18--- 3/16 18...3/16 2...G6

40RUA*28 4Row 2 . . . B B I Z E --- 1 5 --- G A 2...1126 20...3/16 2...C15

40RUA*30 4Row 2 . . . B B I Z E --- 1 5 --- G A 2...1126 24...3/16 2...C17

40RUQ*25 4Row 2 . . . B B I Z E --- 1 2 . 5 --- G A 2...113--- 12--- 3/16 2 --- 1 2 . . . 3/16 2...G8

{Feeder tube size is 1/4in. (6.35 mm).

NOTE: Hot gas bypass applications require field ---supplied auxiliary side connector.

Table 3 – Fitting Requirements

UNIT ACCESS

HOLE NO.}CONNECTION

TYPE CIRCUIT FITTINGS REQUIRED†

(in.)

40RUA*25

1Suction Lower

11/8Street Elbow

11/8Nipple, 75/8L

11/8Long Radius Elbow

2Liquid Lower

5/8Street Elbow

5/8Nipple, 61/2L

5/8Long Radius Elbow

3Liquid Upper

5/8Street Elbow

5/8Nipple, 91/2L

5/8Long Radius Elbow

4Suction Upper

11/8Nipple, 55/8L

11/8Long Radius Elbow

11/8Nipple, 11 L

11/8Long Radius Elbow

40RUQ*25

3Suction Lower 11/8Nipple, 3 L

11/8Long Radius Elbow

5Suction Lower

5/8Nipple, 27/8L

5/845_Elbow

5/8Nipple, 15/8L

5/8Long Radius Elbow

6Liquid Upper

5/8Nipple, 27/8L

5/845_Elbow

5/8Nipple, 41/4L

5/8Long Radius Elbow

7Suction Upper

11/8Nipple, 5 L

11/845_Elbow

11/8Nipple, 83/4L

11/8Long Radius Elbow

40RUS*25

4Supply Lower

13/8Long Radius Elbow

13/8Nipple, 33/4L

13/8Long Radius Elbow

5Return Lower

13/8Long Radius Elbow

13/8Nipple, 33/8L

13/8Long Radius Elbow

6Return Upper

13/8Long Radius Elbow

13/8Nipple, 7 L

13/8Long Radius Elbow

7Supply Upper

13/8Long Radius Elbow

13/8Nipple, 113/4L

11/8Long Radius Elbow

}See Fig. 8 for access hole location by number.

†Fittings are listed in order from header or tee stub connection out to access hole in corner support post.

40RU

Table 3 — Fitting Requirement (cont)

UNIT ACCESS

HOLE NO.}CONNECTION

TYPE CIRCUIT FITTINGS REQUIRED†

(in.)

40RUA*28

1Suction Lower

13/8Street Elbow

13/8Nipple, 11 L

13/8Long Radius Elbow

2Liquid Lower

5/8Street Elbow

5/8Nipple, 11/2L

5/8Long Radius Elbow

3Liquid Upper

5/8Street Elbow

5/8Nipple, 191/2L

5/8Long Radius Elbow

4Suction Upper

13/8Nipple, 43/16 L

13/8Long Radius Elbow

13/8Nipple, 231/4L

13/8Long Radius Elbow

40RUS*28, 30

5Supply Lower

21/8Long Radius Elbow

21/8Nipple, 31/2L

21/8Long Radius Elbow

6Return Lower

21/8Long Radius Elbow

21/8Nipple, 3 L

21/8Long Radius Elbow

7Return Upper

21/8Long Radius Elbow

21/8Nipple, 67/8L

21/8Long Radius Elbow

8Supply Upper

21/8Long Radius Elbow

21/8Nipple, 117/8L

21/8Long Radius Elbow

40RUA*30

1Suction Lower

13/8Street Elbow

13/8Nipple, 3 L

13/8Long Radius Elbow

2Liquid Lower

5/8Street Elbow

5/8Nipple, 73/4L

5/8Long Radius Elbow

3Liquid Upper

5/8Street Elbow

5/8Nipple, 181/2L

5/8Long Radius Elbow

4Suction Upper

13/8Nipple, 43/16 L

13/8Long Radius Elbow

13/8Nipple, 191/4L

13/8Long Radius Elbow

}See Fig. 8 for access hole location by number.

†Fittings are listed in order from header or tee stub connection out to access hole in corner support post.

40RU

Chilled Water Piping -- See Tables 1E and 1F for chilled

water connection sizes. For ease in brazing, it it

recommended that all internal solder joints be made

before unit is placed in final position.

Knockouts are provided in the unit corner posts for

40RUS refrigerant piping. Additional field--fabricated

access holes are required for 40RUS chilled water piping.

See Fig. 8, which lists recommended knockouts and

access holes to use for each 40RUS unit size.

To size, design, and install chilled water piping, consult

the Carrier System Design manual. See Fig. 12 for an

example of a typical installation. Recommended fittings

are listed in Table 3.

To access 40RUS coil vents and drains, remove the unit

side panel over the coil header. Vent and drain plugs are

on the top and bottom of header, respectively. See the

Service section for information on preventing coil

freeze--up during winter.

C10690

Fig. 12 -- Typical 40RUS Chilled Water Piping

40RU

Condensate Drain -- Install a trapped condensate drain

line to unit connection as shown in Fig. 13. The unit drain

connection is a PVC stub. See Fig. 14. Some areas may

require an adapter to connect to either galvanized steel or

copper pipe. For these applications, install a

field--supplied threaded PVC adapter.

3” MIN.

[76]

NOTE: Dimensions in [ ] are in millimeters

C10691

Fig. 13 -- Condensate Drains

NOTE: A trap must be installed in the condensate drain

line to ensure that the static pressure of fans is balanced with

the water column in the drain line and that condensate can

drain completely from pan. Without a trap, air can be drawn

up drain line until water level in condensate pan becomes

equal to static pressure created by fans, preventing complete

drainage. Conditions will worsen as filters become dirty.

Install clean--out plugs in trap. Pitch drain line downward

to an open floor drain or sump. Provide service clearance

around drain line to permit removal of unit panels.

Observe all local sanitary codes.

C10692

Fig. 14 -- Drain Pan Slope Adjustment

As shipped, the unit’s condensate drain pan is NOT sloped

towards the drain connection. The pan slope must be

changed to pitch towards the side of the unit with the

drain connection. See Fig. 14. Loosen the 2 screws next to

the drain outlet at both ends of the unit, push drain pan

down in the slots near the drain connection, and up in the

slots on the opposite end. Re--tighten screws. The pan

should have a pitch of at least 1/4--in. over its length

toward the drain connection.

Fan Motors and Drives -- Motor and drive packages are

factory installed in all units. The motor and drive

packages consist of the following items:

1 — fan motor

1 — adjustable motor pulley

1—fanpulley

2 — matched fan belts

(40RUA*25--30, 40RUQ*25, 40RUS*25--30 units)

For instructions on changing fan rotation, changing drive

speeds and adjusting drives, see Pulley and Drive

Adjustment in the Service section.

40RU

Power Supply and Wiring -- Check the unit data plate to

ensure that available power supply matches electrical

characteristics of the unit. Provide a disconnect switch

with an integrated lock--out feature of size required to

provide adequate fan motor starting current. See Tables

4--6 for unit electrical data.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal

injury or death.

Do not use gas piping as an electrical ground. 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 70, latest edition (in

Canada, Canadian Electrical Code CSA [Canadian

Standards Association] C22.1), and local electrical

codes.

!WARNING

FIRE HAZARD

Failure to follow this warning could result in intermittent

operation or performance satisfaction.

Do not connect aluminum wire between disconnect

switch and fan coil unit. Use only copper wire.

(See Fig. 15)

!WARNING

COPPER

WIRE ONLY

ELECTRIC

DISCONNECT

SWITCH

ALUMINUM

WIRE

A93033

Fig. 15 -- Disconnect Switch and Unit

Install disconnect switch and power wiring in accordance

with all applicable local codes. See Fig. 15--17 and the

unit label diagram. Connect power wiring with 1/4-- i n .

ring terminal.

FILTER

ELEMENTS

FILTER

RETAINER

CLIP

FAN SCROLL

CONDENSATE

DRAIN

CONNECTION

(HORIZONTAL)

MOTOR

ND DRIVE

FAN

CONTACTOR

BOX

WIRE

ACCESS

COIL

FAN DRIVE

PULLEY

TXV BULB

ACCESS

REFRIGERANT

PIPING ACCESS

CONDENSATE

DRAIN

CONNNECTION

(VERTICAL)

LEGEND

TXV — Thermostatic Expansion Valve

C10693

Fig. 16 -- Wiring and Service Access

(Side Panel Removed)

Fan motors are factory--installed on all units. Indoor--fan

contactors are located in the fan contactor box behind the

side access panel (see Fig. 16 and 17). Wire the thermostat

to the 24--v control circuit terminal block located in the

side of the fan contactor control box, according to Fig. 18

or the unit label diagram. If the air handler is part of a

split system, complete the wiring from the condensing

unit to the thermostat shown in Fig. 18.

105°C600VR

FAN

CONTACTOR

24V

TERMINAL

BLOCK

POWER

WIRING

KNOCKOUT

C10694

Fig. 17 -- Fan Contactor Box and Terminal Block

(Cover Removed) (Typical)

40RU

Table 4 – Electrical Data, Standard Motors

UNIT V --- P H --- H z {VOLTAGE

LIMITS

FAN MOTOR POWER SUPPLY

Hp (kW) FLA Minimum

Circuit Amps MOCP

40RUA*25

40RUQ*25

40RUS*25

208/230--- 3--- 60 187--- 253 5.0 (3.73) 14.7/13.6 18.4/17.0 30/25

4 6 0 --- 3 --- 6 0 414--- 506 5.0 (3.73) 6.8 8.5 15

5 7 5 --- 3 --- 6 0 518--- 632 5.0 (3.73) 5.1 6.4 15

40RUA*28

40RUS*28

208/230--- 3--- 60 187--- 253 7.5 (5.59) 21.4/19.4 26.9/24.3 45/40

4 6 0 --- 3 --- 6 0 414--- 506 7.5 (5.59) 9.7 12.1 20

5 7 5 --- 3 --- 6 0 518--- 632 7.5 (5.59) 7.8 9.8 15

40RUA30

40RUS30

208/230--- 3--- 60 187--- 253 10.0 (7.46) 28.0/25.2 35.0/31.5 60/50

4 6 0 --- 3 --- 6 0 414--- 506 10.0 (7.46) 12.6 15.8 25

5 7 5 --- 3 --- 6 0 518--- 632 10.0 (7.46) 10.3 12.9 20

See Legend and Notes below.

Table 5 – Electrical Data, Alternate Motors

UNIT V --- P H --- H z {VOLTAGE

LIMITS

FAN MOTOR POWER SUPPLY

Hp (kW) FLA Minimum

Circuit Amps MOCP

40RUA*25

40RUQ*25

40RUS*25

208/230--- 3--- 60 187--- 253 7.5 (5.59) 21.4/19.4 26.9/24.3 45/40

4 6 0 --- 3 --- 6 0 414--- 506 7.5 (5.59) 9.7 12.1 20

5 7 5 --- 3 --- 6 0 518--- 632 7.5 (5.59) 7.8 9.8 15

40RUA*28

40RUA*30

40RUS*28

40RUS*30

208/230--- 3--- 60 187--- 253 10.0 (7.46) 28.0/25.2 35.0/31.5 60/50

4 6 0 --- 3 --- 6 0 414--- 506 10.0 (7.46) 12.6 15.8 25

5 7 5 --- 3 --- 6 0 518--- 632 10.0 (7.46) 10.3 12.9 20

See Legend and Notes below.

Legend and Notes for Tables 4 and 5

LEGEND:

F L A --- F u l l L o a d A m p s

MOCP --- Maximum Overcurrent Protection

{Motors are designed for satisfactory operation within 10% of

normal voltage shown. Voltages should not exceed the limits

shown in the Voltage Limits column.

NOTES:

1. Minimum circuit amps (MCA) and MOCP values are calcu-

lated in accordance with The NEC. Article 440.

2. Motor FLA values are established in accordance with Under-

writers’ Laboratories (UL). Standard 1995.

3. Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply

voltage is greater than 2%. Use the formula in the example

(see column to the right) to determine the percentage of volt-

age imbalance.

4. Installation with Accessory Electric Heaters

Size the Field Power Wiring between the heater TB1 and the

40RU indoor fan motor per NEC Article 430--- 28 (1) or (2)

(depends on length of conduit between heater enclosure and

40RU power entry location). Install wires in field --- installed

conduit.

Example: Supply voltage is 230-3-60

% Voltage Imbalance = 100 x

max voltage deviation from average voltage

average voltage

AB = 393 v

BC = 403 v

AC = 396 v

Average Voltage =

(393 + 403 + 396)

1192

= 397

Determine maximum deviation from average voltage.

(AB) 397 – 393 = 4 v

(BC) 403 – 397 = 6 v

(AC) 397 – 396 = 1 v

Maximum deviation is 4 v.

Determine percent of voltage imbalance.

% Voltage Imbalance = 100 x

397

=1.5%

This amount of phase imbalance is satisfactory as it is below the

maximum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than

2%, contact your local electric utility company immediately.

40RU

C10695

Fig. 18 -- Unit Wiring

Table 6 – Fan Contactor Coil Data

UNIT

40RU*

VOLTAGE

(vac)

MAXIMUM

HOLDING VA

25, 28, 30 24 10

Connecting Ductwork -- Refer to the Carrier System

Design Manual for the recommended design and layout of

ductwork. Fig. 19 shows recommended duct connection to

units with 2 fans.

UNIT OPERATION HAZARD

Failure to follow this caution could cause equipment

damage.

Do not operate unit without ductwork or discharge

plenum unless fan speed has been adjusted for

external static pressure of zero in. wg. Failure to do so

may result in motor overload.

CAUTION

DISCHARGE CONNECTIONS — Duct flanges are

factory--supplied; they are shipped inside the unit attached

to the hairpin end of the coil tube sheet for field

installation. Using the existing screws, install the duct

flanges on the unit’s fan deck. Each fan discharge requires

2 flanges; each flange must be bent in the middle to

conform to the discharge opening. See Fig. 20. After

flanges are installed, connect them to the supply duct

using a canvas connection to prevent vibration. It is

important that this connection be properly fabricated to

prevent high air friction losses and air noise.

RETURN CONNECTIONS — When using return--air

ductwork, route return--air duct to the unit’s return air inlet

near the filter rack, using a canvas connection to prevent

transmission of unit vibration. If the duct blocks off the

unit’s access panel, provide a slip joint in the ductwork to

permit removal for servicing.

OUTDOOR--AIR INLET CONNECTIONS — Connect

outdoor--air inlet to field--installed accessory economizer.

Refer to Economizer Installation Instructions.

Return--Air Filters -- Type and size of filters are shown

in Tables 1A – 1F and are factory--supplied and

factory--installed. In all units with 2 fans, a filter

replacement tool (hook) is shipped inside the unit for field

use when replacing filters. See the Service section for

instructions on filter element replacement.

40RU

C10696

Fig. 19 -- Typical Fan Discharge Connections for Multiple Fan Units

C10697

Fig. 20 -- Duct Flange Installation

40RU

START--UP

Before starting unit, check the following and correct as

necessary:

SIs unit solidly supported?

SIs fan adjusted for speed and pulley alignment?

SAre pulleys, motor, and bearings securely mounted?

SAre there any loose parts that will rattle or vibrate?

SIs condensate drain pan pitched for correct drainage?

SAre coil baffle plates tight against coil to prevent air

bypass?

SAre all panels securely fastened?

SAre all electrical connections correct and tight?

40RUA and 40RUQ ONLY —

SIs TXV bulb located on suction tube per Fig. 21?

SIs the capillary tube to the bulb free of kinks and not

subject to pinching?

SIs the bulb well secured to the suction tube with strap?

Also refer to condensing unit or outdoor heat pump section

instructions before starting a split system. A split system

start--up checklist is provided at the end of these instructions.

IMPORTANT! / IMPORTANT

40RU500072 2.0

The sensor bulb capillary tubes must be routed from the TXVs inside the unit through one of the piping

access holes. Clamp the TXV sensor bulb on a vertical portion of the suction line, outside the unit.

See Fig. 7 in the installation, start-up and service instruction. Super heat must be adjusted in field.

Les tubes capillaires du capteur doivent être acheminé à partir du détendeur thermostatique situé à l'intérieur

de l'appareil au travers de l'un des trous d'accès de conduites. Attacher le capteur sur une portion verticale

de la conduite de succion, à l'extérieur de l'appareil. Voir la Figure 7 dans le manuel d'installation, de mise

en marche, et d'entretien. La surchauffe doit être ajustée sur place.

AIR FLOW

CIRCULATION

D'AIR

UPPER SPLIT

BLOC SUPÉRIEUR

LOWER

SPLIT

BLOC

INFÉRIEUR

AIR FLOW

CIRCULATION

D'AIR

15 DIAMS MIN

15 x DIA. MIN

10 DIAMS

10 x DIA. MIN

TXV SENSING

BULB

CAPTEUR TXV

15 DIAMS MIN

15 x DIA. MIN

10 DIAMS

10 x DIA. MIN

TXV

SENSING

BULB

CAPTEUR TXV

EQUALIZER LINE

CONDUITE D'ÉQUILIBRAGE

SIGHT GLASS

HUBLOT

8 DIAMS MIN

8 x DIA. MIN

TXV

SOLENOID

VALVE

VANNE

SOLÉNOÏDE

FILTER

DRIER

FILTRE

DESSICCATEUR

TXV

EQUALIZER LINE

CONDUITE D'ÉQUILIBRAGE

8 DIAMS MIN

8 x DIA. MIN

INDOOR COIL

ÉCHANGEUR INTÉRIEUR

C10827

Fig. 21 -- Label, TXV Bulb Location

Adjusting TXV for Superheat

(40RUA and 40 RUQ only) —

The unit--mounted thermostatic expansion valve(s) is/are

factory set to provided superheat at the bulb location in

10_Fto15_F (5.5_Cto8.3_C) range. Actual system load

conditions may require adjustment of the factory setting.

To adjust the TXV superheat setting:

1. Remove the seal cap from the bottom of the TXV

body.

2. To increase superheat, turn the stem clockwise. To de-

crease the superheat, turn the stem counterclockwise.

Do not turn the stem more than one full turn.

3. Wait until suction pressure and superheat stabilize.

This may take more than 30 minutes.

4. Continue adjustment until superheat reaches 10_Fto

15_F (5.5_Cto8.3_C).

5. Replace the seal cap; tighten.

INSTALLER / INSTALLATEUR

TXV superheat must be checked at initial

unit start-up and adjusted if necessary.

Superheat must be 10 - 15 deg F.

La surchauffe TXV doit être vérifiée au

moment de la mise en route initiale et

ajustée si nécessaire. La surchauffe doit

être comprise entre 10 et 15 degrés F.

40RU500073 2.0

C10828

Fig. 22 -- Label, TXV Adjustment

SERVICE

Inspection and maintenance should be performed at

regular intervals and should include the following:

SComplete cleaning of cabinet, fan wheel, cooling coil,

condensate pan and drain, heating coils, and return--air

grille (if present).

SInspection of panels and sealing of unit against air

leakage.

SAdjustment of fan motor, belt, bearings, and wheels.

SCleaning or replacement of filters.

STesting for cooling/heating system leaks.

SChecking of all electrical connections.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal

injury or death.

Before performing service or maintenance operations

on unit, always turn off main power switch to unit and

install lockout tag. Unit may have more than one

power switch.

!WARNING

Most unit service can be performed by removing one or

both of the unit’s side panels. Coil cleaning or removal or

insulation cleaning may require removal of a rear, top, or

bottom panel, depending on the unit’s orientation. When

service is completed, replace unit panels.

Panels -- Panels are fastened to unit frame with sheet

metal screws. Fan and coil compartment must be sealed

tightly after service to prevent air from bypassing the

cooling coil.

40RU

Fan Motor Lubrication -- Fan motor supplied with unit is

permanently lubricated and requires no further

lubrication.

Fan Shaft Bearings -- Size 25--30 units have pillow--block

bearings (Fig. 23) that must be lubricated with suitable

bearing grease approximately every 3 months. See Table 7

for suitable lubricants.

Table 7 – Lubricant Data

MANUFACTURER LUBRICANT

Mobil Mobilplex EP No. 2

Sunoco Prestige 42

Te x a co Multifak 2

Te x a co R e g a l A F B --- 2 *

*Preferred lubricant, contains rust and oxidation inhibitors.

C10698

Fig. 23 -- Fan Shaft, Bearings, and Fan Wheel (Typical)

Centering Fan Wheel -- If fan and fan shaft assembly are

not properly centered, blades may scrape against the

blower side scroll plate or may create an objectionable

whistling noise. It may be necessary to adjust individual

fan wheels or move entire fan shaft. See the following two

sections.

Fan Shaft Position Adjustment -- Loosen setscrew or

locking collar of each fan shaft bearing. Slide shaft into

correct position and replace locking collar (Fig. 24). To

replace locking collar, push collar up against inner face of

bearing. Turn collar in direction of fan rotation until tight,

and tighten setscrew. Tightening locking collar in

direction of fan rotation results in further tightening of

collar should setscrew work itself loose.

C10699

Fig. 24 -- Fan Shaft Bearing

C10700

Fig. 25 -- Fan Motor Mounting

40RU

Individual Fan Wheel Adjustment -- Loosen the 2

locking bolts holding fan wheel hub to shaft. See Fig. 23.

Position fan wheel in center of the fan housing and tighten

locking bolts. Clearance between wheel and housing

should be the same on both sides.

Fan Belts -- Motor mounting plate and motor support

angles are slotted to permit both vertical and horizontal

adjustment. Adjust belt(s) for correct deflection by

loosening motor plate mounting bolts, moving motor/plate

assembly forward or back, and re--tightening bolts. Press

down on belt with one finger midway between fan and

motor pulleys to check deflection. The correct deflection

is 1/8--in. (3.2 mm). See Fig. 25.

If complete belt replacement is required during servicing,

loosen the motor plate mounting bolts (Fig. 25), move

motor/plate assembly towards fan pulley, and pull belt(s)

off pulleys. Reverse the procedure with new bolts and

readjust deflection.

Fan Rotation -- Correct fan rotation with respect to fan

outlet is shown in Fig. 26.

C10701

Fig. 26 -- Fan Rotation

To reverse the direction of rotation of a 3--phase fan

motor, reverse any 2 of the power leads. Refer to the

connection diagram on the inside of motor terminal box

cover for proper reversing procedure of single--phase

motor.

Fan Pulley Alignment -- Align as follows:

1. Loosen setscrews on pulleys.

2. Align pulleys visually and tighten setscrews on fan

pulley to lock it in place.

3. Use the methods shown in Fig. 27 to check proper

pulley alignment.

C10702

Fig. 27 -- Fan Pulley Adjustments

4. If pulleys are not in correct alignment, loosen the mo-

tor holddown bolts and slide the motor axially until

the pulleys are aligned.

5. Tighten motor holddown bolts.

Pulley and Drive Adjustment -- To obtain desired fan

speed, refer to the fan motor and drive data in Tables

8A--11D and adjust fan motor pulley as follows:

1. Remove belt from fan motor pulley after loosening

motor from motor base.

2. Loosen setscrew in moveable flange of pulley. Screw

moveable flange toward fixed flange to increase the

fan speed and away from fixed flange to reduce

speed. Before tightening setscrew, make certain that

setscrew is over nearest flat surface of pulley hub

(Fig. 27).

UNIT OPERATION HAZARD

Failure to follow this caution could cause equipment

damage.

Increasing fan speed produces a greater load on motor.

Do not exceed rated capacity of motor.

CAUTION

Condensate Drains -- Keep condensate drains free of dirt

and foreign matter.

Return--Air Filters -- Refer to Replacing Filters section

for filter accessibility and removal. Replace with clean

filters of the sizes listed in Tables 1A--1F.

40RU

Chilled Water Coil Freeze Protection -- Shut off water

supply to unit. Remove side panel of unit and remove vent

and drain plugs in top and bottom of coil header. Drain

coil and blow out remaining water. Reinstall plugs and

side panel.

Alternative freeze protection methods follow:

SCirculate hot water within the water coil’s supply main

or supplementary space heating.

SClose off supply lines to unit and open a union or

field--supplied drain valve in the return line.

IMPORTANT: Draining from return line will not

completely drain water from coils.

SAfter draining as much water as possible from coils, add

sufficient antifreeze to prevent residual water in the coil

from freezing.

SAdd a sufficient quantity of non--corrosive antifreeze to

the entire system to prevent all water within the system

from freezing.

Coil Removal -- Remove unit panels and corner posts as

required. Disconnect coil connections and remove fastening

screws. Remove coil through end or side sections of unit.

Cleaning Cooling Coil -- Remove return--air filters.

Remove any heavy dirt that may have accumulated on

underside of coil. Coil can be cleaned more easily with a

stiff brush, vacuum cleaner, or compressed air when coil

is dry. If coil is wet or if water is to be used for cleaning,

guard against splashing water on electrical components or

damaging surrounding area. Clean coil baffles as

applicable and check for tight fit to be sure air does not

bypass coil.

Cleaning Insulation -- The insulation contains an

immobilized antimicrobial agent that helps prevent the

growth of bacteria and fungi. Clean the inner surface of

the insulation according to the separate maintenance

instructions shipped with the unit.

Replacing Filters -- Filters can be removed and installed

from either side of the unit. Install new filters in units that

have one fan as follows:

1. Remove the side access panel (retain screws).

2. Remove the filter retainer clip (see Fig. 28).

3. Remove old filters by lifting and tilting them out of

the filter track. See Fig. 16 and 29. Use the factory--

supplied filter hook to slide filters within reach for re-

moval. The filter hook is shipped inside the unit in

the filter track

4. Reverse the procedure to install new filters.

UNIT OPERATION HAZARD

Failure to follow this caution could cause equipment

damage.

Do not operate unit without air filters.

CAUTION

SLIDE

FILTER

RETAINER

CLIP

C10703

Fig. 28 -- Remove Filter Retainer Clip

C10704

Fig. 29 -- Filter Removal/Replacement

40RU

Table 8A -- Fan Motor Data, Standard Motor — English

UNIT

40RUA*25

40RUQ*25

40RUS*25

40RUA*28

40RUS*28

40RUA*30

40RUS*30

208/230---3---60 and 460---3---60

Speed (rpm) 1745 1745 1745

Hp 5.0 7.5 10.0

Frame (NEMA) S184T S213T S215T

Shaft Dia (in.) 11/813/813/8

5 7 5 --- 3 --- 6 0

Speed (rpm) 1745 1755 1755

Hp 5.0 7.5 10.0

Frame (NEMA) 184T S213T D215T

Shaft Dia (in.) 11/813/813/8

LEGEND

NEMA — National Electrical Manufacturers Association

Table 8B -- Fan Motor Data, Alternate Motor — English

UNIT

40RUA*25

40RUQ*25

40RUS*25

40RUA*28

40RUS*28

40RUA*30

40RUS*30

208/230---3---60 and 460---3---60

Speed (rpm) 1745 1745 1745

Hp 7.5 10.0 10.0

Frame (NEMA) S213T S215T S215T

Shaft Dia (in.) 13/813/813/8

5 7 5 --- 3 --- 6 0

Speed (rpm) 1755 1750 1750

Hp 7.5 10.0 10.0

Frame (NEMA) S213T D215T D215T

Shaft Dia (in.) 13/813/813/8

LEGEND

NEMA — National Electrical Manufacturers Association

40RU

Table 8C -- Fan Motor Data, Standard Motor — SI

UNIT

40RUA*25

40RUQ*25

40RUS*25

40RUA*28

40RUS*28

40RUA*30

40RUS*30

208/230---3---60 and 460---3---60

Speed (r/s) 29.08 29.08 29.08

Shaft kW 3.73 5.60 7.46

Frame (NEMA) S184T S213T S215T

Shaft Dia (mm) 28.6 34.9 34.9

5 7 5 --- 3 --- 6 0

Speed (r/s) 29.08 29.25 29.25

Shaft kW 3.73 5.60 7.46

Frame (NEMA) 184T S213T S215T

Shaft Dia (mm) 28.6 34.9 34.9

LEGEND

NEMA — National Electrical Manufacturers Association

Table 8D -- Fan Motor Data, Alternate Motor — SI

UNIT

40RUA*25

40RUQ*25

40RUS*25

40RUA*28

40RUS*28

40RUA*30

40RUS*30

208/230---3---60 and 460---3---60

Speed (r/s) 29.08 29.17 29.17

Shaft kW 5.60 7.46 7.46

Frame (NEMA) S213T S215T S215T

Shaft Dia (mm) 34.9 34.9 34.9

5 7 5 --- 3 --- 6 0

Speed (r/s) 29.25 29.17 29.17

Shaft kW 5.60 7.46 7.46

Frame (NEMA) S213T D215T D215T

Shaft Dia (mm) 34.9 34.9 34.9

LEGEND

NEMA — National Electrical Manufacturers Association

40RU

Table 9A -- Standard Drive Data, 60 Hz — English

UNIT

40RUA*25

40RUQ*25

40RUS*25

40RUA*28

40RUS*28

40RUA*30

40RUS*30

MOTOR DRIVE

Motor Pulley Pitch Diameter (in.) 3.7--- 4.7 4.3--- 5.3 4.3--- 5.3

Pulley Factory Setting

Full Turns Open 3.0 3.0 3.0

FAN DRIVE

Pulley Pitch Dia (in.) 9.4 11.0 11.0

Pulley Bore (in.) 17/16 115/16 115/16

Belt No. — Section 2—B 2—B†2—B†

Belt Pitch (in.) 41.8 (2) 42.8

(2) 43.8

(2) 42.8

(2) 43.8

FAN SPEEDS (rpm)

Factory Setting 771 752 752

Range 679---863 682--- 841 674--- 831

Max Allowable Speed (rpm) 1200 1100 1100

Change per 1/2Turn of

Moveable Motor Pulley

Flange

15.3 13.1 13.1

MAX FULL TURNS FROM

CLOSED POSITION 666

SHAFTS CENTER DISTANCE (in.) 9.12--- 10.99 6.67--- 9.43 6.67--- 9.43

†Four belts shipped with unit. Use correct set of 2 belts sized according to the pulley setting.

Table 9B -- Medium--Static Drive Data, 60 Hz — English

UNIT

40RUA*25

40RUQ*25

40RUS*25

40RUA*28

40RUS*28

40RUA*30

40RUS*30

MOTOR DRIVE

Motor Pulley Pitch Diameter (in.) 4.3--- 5.3 4.3--- 5.3 4.3--- 5.3

Pulley Factory Setting

Full Turns Open 3.0 3.0 3.0

FAN DRIVE

Pulley Pitch Dia (in.) 9.4 9.4 9.4

Pulley Bore (in.) 17/16 115/16 115/16

Belt No. — Section 1—B 2—B†2—B†

Belt Pitch (in.) 41.8 (2) 38.8

(2) 39.8

(2) 38.8

(2) 39.8

FAN SPEEDS (rpm)

Factory Setting 881 881 881

Range 798---984 798--- 984 798--- 984

Max Allowable Speed (rpm) 1200 1100 1100

Change per 1/2Turn of

Moveable Motor Pulley

Flange

15.3 15.3 15.3

MAX FULL TURNS FROM

CLOSED POSITION 666

SHAFTS CENTER DISTANCE (in.) 9.16--- 10.99 6.67--- 9.43 6.67--- 9.43

†Four belts shipped with unit. Use correct set of 2 belts sized according to the pulley setting.

40RU

Table 9C -- High--Static Drive Data, 60 Hz — English

UNIT

40RUA*25

40RUQ*25

40RUS*25

40RUA*28

40RUS*28

40RUA*30

40RUS*30

MOTOR DRIVE

Motor Pulley Pitch Diameter (in.) 4.3--- 5.3 4.3--- 5.3 4.3--- 5.3

Pulley Factory Setting

Full Turns Open 3.0 3.0 3.0

FAN DRIVE

Pulley Pitch Dia (in.) 7.4 8.6 8.6

Pulley Bore (in.) 17/16 115/16 115/16

Belt No. — Section 2—B 2—B 2—B

Belt Pitch (in.) 36.8 378 37.8

FAN SPEEDS (rpm)

Factory Setting 1118 1024 1024

Range 1014---1200†873--- 1075 873--- 1075

Max Allowable Speed (rpm) 1200 1100 1100

Change per 1/2Turn of

Moveable Motor Pulley

Flange

19.4 16.7 16.7

MAX FULL TURNS FROM

CLOSED POSITION 666

SHAFTS CENTER DISTANCE (in.) 8.16--- 10.02 6.67--- 9.43 6.67--- 9.43

†It is possible to adjust drive so that fan speed exceeds maximum allowable. DO NOT exceed 1200 rpm.

Table 9D-- Standard Drive Data, 60 Hz — SI

UNIT

40RUA*25

40RUQ*25

40RUS*25

40RUA*28

40RUS*28

40RUA*30

40RUS*30

MOTOR DRIVE

Motor Pulley Pitch Diameter (mm) 94.0--- 119.4 109.2--- 134.6 109.2--- 134.6

Pulley Factory Setting

Full Turns Open 3.0 3.0 3.0

FAN DRIVE

Pulley Pitch Dia (mm) 239 279 279

Pulley Bore (mm) 36.5 49.2 49.2

Belt No. — Section 2—B 2—B†2—B†

Belt Pitch (mm) 1062 (2) 1987

(2) 1113

(2) 1987

(2) 1113

FAN SPEEDS (r/s)

Factory Setting 12.9 12.5 12.5

Range 11.3---14.4 11.4--- 14.0 11.2--- 13.9

Max Allowable Speed (r/s) 20.0 18.3 18.3

Change per 1/2Turn of

Moveable Motor Pulley

Flange

0.255 0.218 0.218

MAX FULL TURNS FROM

CLOSED POSITION 666

SHAFTS CENTER DISTANCE (mm) 232---279 169--- 240 169--- 240

†Four belts shipped with unit. Use correct set of 2 belts sized according to the pulley setting.

40RU

Table 9E -- Medium--Static Drive Data, 60 Hz — SI

UNIT

40RUA*25

40RUQ*25

40RUS*25

40RUA*28

40RUS*28

40RUA*30

40RUS*30

MOTOR DRIVE

Motor Pulley Pitch Diameter (mm) 109.2--- 134.6 109.2--- 134.6 109.2--- 134.6

Pulley Factory Setting

Full Turns Open 3.0 3.0 3.0

FAN DRIVE

Pulley Pitch Dia (mm) 239 239 239

Pulley Bore (mm) 36.5 49.2 49.2

Belt No. — Section 1—B 2—B†2—B†

Belt Pitch (mm) 1062 (2) 986

(2) 1011

(2) 986

(2) 1011

FAN SPEEDS (r/s)

Factory Setting 14.7 14.7 14.7

Range 13.3---16.4 13.3--- 16.4 13.3--- 16.4

Max Allowable Speed (r/s) 20.0 18.3 18.3

Change per 1/2Turn of

Moveable Motor Pulley

Flange

0.255 0.255 0.255

MAX FULL TURNS FROM

CLOSED POSITION 666

SHAFTS CENTER DISTANCE (mm) 232--- 279 169--- 240 169--- 240

†Four belts shipped with unit. Use correct set of 2 belts sized according to the pulley setting.

Table 9F -- High--Static Drive Data, 60 Hz — SI

UNIT

40RUA*25

40RUQ*25

40RUS*25

40RUA*28

40RUS*28

40RUA*30

40RUS*30

MOTOR DRIVE

Motor Pulley Pitch Diameter (mm) 109.2--- 134.6 109.2--- 134.6 109.2--- 134.6

Pulley Factory Setting

Full Turns Open 3.0 3.0 3.0

FAN DRIVE

Pulley Pitch Dia (mm) 188 203†203

Pulley Bore (mm) 36.5 49.2 49.2

Belt No. — Section 2—B 2—B 2—B

Belt Pitch (mm) 935 935 960

FAN SPEEDS (r/s)

Factory Setting 18.6 17.1 17.1

Range 16.9---20.0†14.6--- 17.9 14.6--- 7.9

Max Allowable Speed (r/s) 20.0 18.3 18.3

Change per 1/2Turn of

Moveable Motor Pulley

Flange

0.323 0.278 0.278

MAX FULL TURNS FROM

CLOSED POSITION 666

SHAFTS CENTER DISTANCE (mm) 207---255 169--- 240 169--- 240

†It is possible to adjust drive so that fan speed exceeds maximum allowable. DO NOT exceed 20 r/s

40RU

Table 10A -- 40RU Standard Fan Performance Data —

0.0--2.4 in. wg External Static Pressure — English

UNIT AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.0 0.2 0.4 0.6 0.8 1.0 1.2

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

40RUA*25

40RUQ*25

40RUS*25

6,000 532 1.25 569 1.39 639 1.69 711 2.06 781 2.48 846 2.93 905 3.60

7,000 608 1.93 641 2.09 702 2.42 763 2.08 824 3.23 885 3.71 943 4.23

8,000 686 2.83 716 3.01 770 3.38 823 3.77 876 4.21 930 4.70 983 5.24

9,000 764 3.97 791 4.18 841 4.59 888 5.02 935 5.47 982 5.96 1030 6.51

10,000 843 5.38 868 5.62 914 6.09 957 6.55 1000 7.02 1042 7.53 1084 8.08

40RUA*28

40RUS*28

7,500 456 1.29 490 1.47 556 1.85 621 2.25 678 2.64 729 3.06 778 3.60

8,750 521 1.98 551 2.18 608 2.61 664 3.07 720 3.53 770 3.99 816 4.45

10,000 587 2.88 614 3.11 664 3.59 714 4.09 763 4.62 812 5.15 857 5.68

11,250 653 4.03 678 4.29 724 4.82 768 5.37 812 5.95 856 6.54 899 7.14

12,500 720 5.46 743 5.75 785 6.33 825 6.93 865 7.55 904 8.20 944 8.86

15,000 829 8.84 850 9.19 888 9.88 924 10.57 958 11.27 991 11.99 1024 12.73

40RUA*30

40RUS*30

9,000 521 1.99 550 2.25 616 2.77 676 3.23 731 3.72 782 4.20 829 4.70

10,500 596 3.16 623 3.40 672 3.89 720 4.40 767 4.94 814 5.50 859 6.05

12,000 673 4.63 698 4.90 743 5.45 785 6.02 826 6.62 867 7.23 908 7.87

13,500 751 6.51 773 6.82 815 7.44 853 8.06 890 8.71 927 9.38 963 10.07

15,000 829 8.84 850 9.19 888 9.88 924 10.57 958 11.27 991 11.99 1024 12.73

See Legend and Notes on page 36.

Table 10A -- 40RU Standard Fan Performance Data —

0.0--2.4 in. wg External Static Pressure — English (cont)

UNIT AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

1.4 1.6 1.8 2.0 2.2 2.4

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

40RUA*25

40RUQ*25

40RUS*25

6,000 954 3.83 1005 4.27 1052 4.72 1098 5.22 1142 5.67 — —

7,000 990 4.74 1040 5.24 1090 5.80 1135 6.30 1176 6.84 — —

8,000 1028 5.79 1078 6.38 1130 7.00 1173 7.60 — — — —

9,000 1073 7.11 1120 7.72 1169 8.37 — — — — — —

10,000 1126 8.75 1166 9.37 — — — — — — — —

40RUA*28

40RUS*28

7,500 831 4.41 870 5.10 913 5.90 950 6.88 985 7.70 — —

8,750 859 4.97 901 5.59 944 6.42 980 7.20 1020 8.10 — —

10,000 900 6.20 939 6.74 976 7.33 1013 8.00 1050 8.82 — —

11,250 941 7.73 980 8.32 1017 8.90 1052 9.51 1088 10.16 — —

12,500 984 9.53 1022 10.19 1058 10.84 1093 11.49 — — — —

15,000 1057 13.49 1090 14.28 — — — — — — — —

40RUA*30

40RUS*30

9,000 866 5.20 899 5.85 950 6.65 989 7.38 1029 8.32 1077 9.74

10,500 902 6.60 942 7.14 980 7.70 1016 8.31 1051 8.99 1085 9.77

12,000 949 8.50 988 9.14 1026 9.76 1062 10.38 1095 11.01 — —

13,500 1000 10.78 1036 11.49 1073 12.21 — — — — — —

15,000 1057 13.49 1090 14.28 — — — — — — — —

See Legend and Notes on page 36.

40RU

Table 10B -- 40RU Standard Fan Performance Data —

0--600 kPa External Static Pressure — SI

UNIT AIRFLOW

(L/s)

EXTERNAL STATIC PRESSURE (kPa)

050 100 150 200 250 300

r/s kW r/s kW r/s kW r/s kW r/s kW r/s kW r/s kW

40RUA*25

40RUQ*25

40RUS*25

2830 8.86 0.94 9.48 1.04 10.65 1.26 11.84 1.53 13.01 1.85 14.10 2.19 15.08 2.53

3300 10.14 1.44 10.69 1.56 11.70 1.81 12.71 2.08 13.73 2.41 14.74 2.77 15.71 3.15

3780 11.43 2.11 11.93 2.25 12.84 2.52 13.71 2.81 14.60 3.14 15.49 3.51 16.39 3.91

4250 12.74 2.96 13.19 3.12 14.02 3.43 14.81 3.74 15.59 4.08 16.37 4.45 17.17 4.85

4720 14.05 4.01 14.47 4.19 15.23 4.54 15.96 4.88 16.66 5.24 17.36 5.62 18.07 6.03

40RUA*28

40RUS*28

3540 7.60 0.96 8.16 1.09 9.27 1.38 10.34 1.68 11.30 1.97 12.15 2.28 12.97 2.68

4130 8.68 1.47 9.18 1.62 10.13 1.94 11.07 2.29 11.99 2.63 12.84 2.97 13.60 3.32

4720 9.78 2.15 10.23 2.32 11.07 2.67 11.89 3.05 12.72 3.45 13.53 3.84 14.29 4.23

5310 10.89 3.01 11.30 3.20 12.06 3.59 12.80 4.00 13.53 4.43 14.27 4.88 14.99 5.33

5900 12.00 4.07 12.38 4.29 13.09 4.72 13.75 5.17 14.41 5.63 15.07 6.11 15.74 6.61

40RUA*30

40RUS*30

4250 8.68 1.48 9.17 1.68 10.27 2.07 11.27 2.41 12.19 2.77 13.03 3.13 13.81 3.50

4960 9.93 2.35 10.38 2.53 11.21 2.90 11.99 3.28 12.78 3.68 13.56 4.10 14.32 4.51

5660 11.21 3.45 11.63 3.66 12.38 4.07 13.08 4.49 13.76 4.93 14.45 5.39 15.14 5.87

6370 12.51 4.85 12.89 5.08 13.58 5.54 14.22 6.01 14.83 6.49 15.44 6.99 16.05 7.51

7080 13.82 6.59 14.17 6.85 14.81 7.36 15.40 7.88 15.97 8.40 16.52 8.94 17.06 9.49

See Legend and Notes on page 36.

Table 10B -- 40RU Standard Fan Performance Data —

0--600 kPa External Static Pressure — SI (cont)

UNIT AIRFLOW

(L/s)

EXTERNAL STATIC PRESSURE (kPa)

350 400 450 500 550 600

r/s kW r/s kW r/s kW r/s kW r/s kW r/s kW

40RUA*25

40RUQ*25

40RUS*25

2830 15.90 2.86 16.75 3.18 17.53 3.52 18.30 3.89 19.03 4.23 — —

3300 16.50 3.53 17.33 3.91 18.17 4.32 18.92 4.70 19.60 5.10 — —

3780 17.13 4.32 17.97 4.76 18.83 5.22 19.55 5.67 ————

4250 17.88 5.30 18.67 5.76 19.48 6.24 ——————

4720 18.77 6.52 19.43 6.99 ————————

40RUA*28

40RUS*28

3540 13.85 3.29 14.50 3.80 15.22 4.40 15.83 5.13 16.42 5.74 — —

4130 14.31 3.71 15.01 4.17 15.74 4.79 16.33 5.37 17.00 6.04 — —

4720 14.99 4.62 15.65 5.02 16.27 5.46 16.88 5.97 17.50 6.57 — —

5310 15.68 5.77 16.34 6.20 16.95 6.64 17.53 7.09 18.09 7.58 — —

5900 16.39 7.10 17.03 7.60 17.64 8.08 18.22 8.57 ————

40RUA*30

40RUS*30

4250 14.43 3.88 14.98 4.36 15.84 4.96 16.48 5.50 17.16 6.21 17.96 7.26

4960 15.04 4.92 15.71 5.32 16.33 5.74 16.93 6.20 17.51 6.70 18.09 7.29

5660 15.81 6.34 16.47 6.81 17.10 7.28 17.69 7.74 18.26 8.21 — —

6370 16.66 8.04 17.27 8.57 17.88 9.10 ——————

7080 17.61 10.06 18.16 10.64 ————————

See Legend and Notes on page 36.

40RU

Table 10C -- 40RU High--Capacity Fan Performance Data —

0.0--2.4 in. wg External Static Pressure — English

UNIT AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.0 0.2 0.4 0.6 0.8 1.0 1.2

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

40RUA*25

40RUQ*25

40RUS*25

6,000 542 1.29 577 1042 646 1.72 716 2.09 785 2.51 849 2.95 907 3.40

7,000 620 1.99 652 2.15 711 2.48 771 2.85 831 3.28 890 3.76 947 4.27

8,000 700 2.92 728 3.10 781 3.46 833 3.85 885 4.29 938 4.78 990 5.32

9,000 781 4.10 806 4.30 854 4.71 900 5.13 946 5.58 993 6.08 1039 6.62

10,000 862 5.56 885 5.79 929 6.24 971 6.70 1012 7.18 1054 7.69 1096 8.24

40RUA*28

40RUS*28

7,500 476 1.39 510 1.58 579 1.99 644 2.40 701 2.81 752 3.29 804 3.96

8,750 545 2.14 574 2.35 633 2.81 691 3.29 747 3.77 797 4.25 842 4.76

10,000 615 3.12 641 3.36 692 3.87 743 4.41 794 4.96 843 5.51 888 6.05

11,250 685 4.37 709 4.64 754 5.20 800 5.79 845 6.40 891 7.02 935 7.64

12,500 756 5.92 778 6.22 819 6.83 860 7.47 901 8.14 942 8.83 983 9.52

40RUA*30

40RUS*30

9,000 539 2.18 569 2.39 626 2.85 683 3.34 739 3.83 791 4.32 837 4.82

10,500 620 3.37 646 3.62 695 4.13 744 4.68 793 5.25 842 5.83 888 6.41

12,000 701 4.94 724 5.22 769 5.80 811 6.40 854 7.04 897 7.69 940 8.36

13,500 783 6.95 804 7.27 844 7.91 883 8.57 920 9.26 958 9.97 996 10.71

15,000 865 9.45 884 9.81 921 10.52 956 11.24 991 11.98 1025 12.75 1059 13.54

See Legend and Notes on page 36.

Table 10C -- 40RU High--Capacity Fan Performance Data —

0.0--2.4 in. wg External Static Pressure — English (cont)

UNIT AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

1.4 1.6 1.8 2.0 2.2 2.4

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

40RUA*25

40RUQ*25

40RUS*25

6,000 961 3.86 1011 4.31 1058 4.77 1104 5.24 1147 5.71 — —

7,000 1000 4.79 1050 5.32 1097 5.85 1142 6.38 1184 6.91 — —

8,000 1041 5.88 1090 6.47 1137 7.07 1181 7.67 — — — —

9,000 1086 7.21 1133 7.82 1178 8.47 ——————

10,000 1138 8.83 1180 9.46 ————————

40RUA*28

40RUS*28

7,500 874 5.33 897 5.91 940 6.80 990 7.50 — — — —

8,750 886 5.36 930 6.13 982 7.32 1020 8.10 — — — —

10,000 930 6.60 969 7.20 1007 7.89 1045 8.71 — — — —

11,250 976 8.25 1014 8.86 1051 9.49 1086 10.17 — — — —

12,500 1023 10.20 1061 10.88 1097 11.56 ——————

40RUA*30

40RUS*30

9,000 881 5.37 923 6.03 967 6.89 1020 8.25 — — — —

10,500 930 6.97 970 7.55 1008 8.17 1045 8.86 — — — —

12,000 981 9.02 1021 9.67 1058 10.32 1094 10.97 — — — —

13,500 1035 11.45 1072 12.20 ————————

15,000 1093 14.35 ——————————

See Legend and Notes on page 36.

40RU

Table 10D -- 40RU High--Capacity Fan Performance Data —

0--600 kPa External Static Pressure — SI

UNIT AIRFLOW

(L/s)

EXTERNAL STATIC PRESSURE (kPa)

050 100 150 200 250 300

r/s kW r/s kW r/s kW r/s kW r/s kW r/s kW r/s kW

40RUA*25

40RUQ*25

40RUS*25

2830 9.03 0.96 9.62 1.06 10.77 1.29 11.94 1.56 13.08 1087 14.15 2.20 15.12 2.54

3330 10.34 1.48 10.86 1.60 11.85 1.85 12.84 2.12 13.85 2.45 14.84 2.80 15.78 3.18

3780 11.67 2.17 12.14 2.31 13.02 2.58 13.88 2.87 14.75 3.20 15.63 3.56 16.50 3.96

4250 13.01 3.05 13.44 3.21 14.23 3.51 15.00 3.82 15.77 4.16 16.54 4.53 17.32 4.94

4720 14.36 4.15 14.75 4.32 15.48 4.66 16.18 4.99 16.87 5.35 17.56 5.73 18.26 6.14

40RUA*28

40RUS*28

3540 7.94 1.04 8.51 1.18 9.65 1.48 10.73 1.79 11.68 2.10 12.53 2.46 13.40 2.95

4130 9.08 1.59 9.57 1.75 10.55 2.10 11.52 2.46 12.45 2.81 13.28 3.17 14.04 3.55

4720 10.24 2.33 10.68 2.51 11.53 2.88 12.39 3.29 13.24 3.70 14.05 4.11 14.80 4.51

5310 11.42 3.26 11.81 3.46 12.57 3.88 13.33 4.32 14.09 4.77 14.85 5.24 15.58 570

5900 12.60 4.42 12.96 4.64 13.65 5.09 14.33 5.57 15.01 6.07 15.40 6.58 16.38 7.10

40RUA*30

40RUS*30

4250 8.99 1.62 9.49 1.78 10.44 2.12 11.39 2.49 12.32 2.86 13.18 3.22 13.95 3.59

4960 10.33 2.51 10.77 2.70 11.59 3.08 12.40 3.49 13.22 3.92 14.03 4.35 14.79 4.78

5660 11.68 3.68 12.07 3.90 12.81 4.33 13.52 4.77 14.23 5.25 14.95 5.74 15.66 6.23

6370 13.04 5.18 13.40 5.42 14.07 5.90 14.71 6.39 15.34 6.90 15.97 7.44 16.61 7.98

7080 14.42 7.05 14.74 7.31 15.36 7.84 15.94 8.38 16.51 8.93 17.08 9.51 17.65 10.10

See Legend and Notes on page 36.

Table 10D -- 40RU High--Capacity Fan Performance Data —

0--600 kPa External Static Pressure — SI (cont)

UNIT AIRFLOW

(L/s)

EXTERNAL STATIC PRESSURE (kPa)

350 400 450 500 550 600

r/s kW r/s kW r/s kW r/s kW r/s kW r/s kW

40RUA*25

40RUQ*25

40RUS*25

2830 16.01 2.88 16.85 3.22 17.64 3.56 18.39 3.91 19.12 4.26 — —

3300 16.67 3.57 17.50 3.96 18.28 4.36 19.03 4.75 19.73 5.15 — —

3780 17.35 4.39 18.17 4.82 18.95 5.27 19.68 5.72 — — — —

4250 18.11 5.37 18.88 5.83 19.63 6.31 ——————

4720 18.96 6.58 19.67 7.05 ————————

40RUA*28

40RUS*28

3540 14.57 3.97 14.95 4.41 15.67 5.07 16.50 5.59 — — — —

4130 14.76 3.99 15.51 4.57 16.36 5.46 17.00 6.04 — — — —

4720 15.49 4.92 16.15 5.37 16.78 5.88 17.42 6.50 — — — —

5310 16.26 6.15 16.91 6.61 17.51 7.08 18.10 7.58 — — — —

5900 17.04 7.61 17.68 8.11 18.28 8.62 ——————

40RUA*30

40RUS*30

4250 14.68 4.00 15.38 4.49 16.12 5.14 17.00 6.15 — — — —

4960 15.51 5.20 16.17 5.63 16.80 6.09 17.41 6.61 — — — —

5660 16.35 6.72 17.01 7.21 17.64 7.69 18.23 8.18 — — — —

6370 17.24 8.54 17.87 9.10 ————————

7080 18.22 10.70 ——————————

See Legend and Notes on page 36.

40RU

Legend and Notes for Tables 10A and 10C

LEGEND

Bhp --- Brake Horsepower Input to Fan

ESP --- External Static Pressure

NOTES:

1. Maximum allowable fan speed for size 25 units is 1200 rpm . Maximum

allowable fan speed for size 28 and 30 units is 1100 rpm.

2. Fan performance is based on deductions for wet coil, clean 2-in. filters,

and unit casing. See table at right for factory-supplied filter pressure drop.

3. Refer to fan motor and drive tables for additional data.

FACTORY-SUPPLIED PRESSURE DROP — ENGLISH

UNIT AIRFLOW

(Cfm)

PRESSURE DROP

(in. wg)

40RUA*25

40RUQ*25

40RUS*25

6,000 0.12

8,000 0.19

10,000 0.26

40RUA*28

40RUS*28

7,500 0.15

10,000 0.22

12,500 0.30

40RUA*30

40RUS*30

9,000 0.19

12,000 0.29

15,000 0.40

Legend and Notes for Tables 10B and 10D

LEGEND

ESP --- External Static Pressure

NOTES:

1. Maximumallowablefanspeedforsize25unitsis20r/s.Maximum

allowable fan speed for size 28 and 30 units is 18.3 r/s.

2. Fanperformanceisbasedondeductionsforwetcoil,clean51---mm

filters, and unit casing. See table at right for factory-supplied filter

pressure drop.

3. Refer to fan motor and drive tables for additional data.

FACTORY-SUPPLIED PRESSURE DROP — SI

UNIT AIRFLOW

(L/s)

PRESSURE DROP

(Pa)

40RUA*25

40RUQ*25

40RUS*25

2900 32

3800 47

4700 64

40RUA*28

40RUS*28

3500 36

4700 55

5900 76

40RUA*30

40RUS*30

4250 47

5650 71

7050 98

40RU

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

Catalog No: 40RU---07SI

Replaces: 40RU--- 05SI

40RU

START--UP CHECKLIST

(SPLIT SYSTEMS WITH 40RU UNITS)

I. PRELIMINARY INFORMATION

OUTDOOR: MODEL NO. INDOOR: MODEL NO.

SERIAL NO. SERIAL NO.

ADDITIONAL ACCESSORIES

II. PRE--START--UP

OUTDOOR UNIT

IS THERE ANY SHIPPING DAMAGE? (Y/N)

IF SO, WHERE:

WILL THIS DAMAGE PREVENT UNIT START--UP? (Y/N)

CHECK POWER SUPPLY. DOES IT AGREE WITH UNIT? (Y/N)

HAS THE GROUND WIRE BEEN CONNECTED? (Y/N)

HAS THE CIRCUIT PROTECTION BEEN SIZED AND INSTALLED PROPERLY? (Y/N)

ARE THE POWER WIRES TO THE UNIT SIZED AND INSTALLED PROPERLY? (Y/N)

HAVE COMPRESSOR HOLDDOWN BOLTS BEEN LOOSENED? (Y/N)

CONTROLS

ARE THERMOSTAT(S) & INDOOR FAN CONTROL WIRING CONNECTIONS MADE & CHECKED? (Y/N)

ARE ALL WIRING TERMINALS (including main power supply) TIGHT? (Y/N)

HAVE OUTDOOR UNIT CRANKCASE HEATERS BEEN ENERGIZED FOR 24 HOURS? (Y/N)

INDOOR UNIT

HAS WATER BEEN PLACED IN DRAIN PAN TO CONFIRM PROPER DRAINAGE? (Y/N)

ARE PROPER AIR FILTERS IN PLACE? (Y/N)

HAVE FAN AND MOTOR PULLEYS BEEN CHECKED FOR PROPER ALIGNMENT? (Y/N)

DO THE FAN BELTS HAVE PROPER TENSION? (Y/N)

PIPING

40RUA, 40RUQ

HAS FOAM SHIPPING BLOCK BEEN REMOVED FROM THE TXV (Thermostatic Expansion Valve)? (Y/N)

ARE LIQUID LINE SOLENOID VALVES LOCATED AT THE INDOOR UNIT (40RUA) OR OUTDOOR UINT

(40RUQ) COILS AS REQUIRED? (Y/N)

HAVE LEAK CHECKS BEEN MADE AT COMPRESSORS, CONDENSERS, INDOOR COILS,

TXVs (Thermostatic Expansion Valves) SOLENOID VALVES, FILTER DRIERS, AND FUSIBLE PLUGS

WITH A LEAK DETECTOR? (Y/N)

LOCATE, REPAIR, AND REPORT ANY LEAKS

HAVE ALL COMPRESSOR SERVICE VALVES BEEN FULLY OPENED (BACKSEATED) (Y/N)

ARE THE COMPRESSOR OIL SIGHT GLASSES SHOWING CORRECT LEVELS? (Y/N)

40RUS

HAS AIR BEEN BLED FROM SYSTEM? (Y/N)

HAVE LEAK CHECKS BEEN MADE AT COMPRESSORS, CHILLERS, VALVES, & INDOOR COILS? (Y/N)

LOCATE, REPAIR, AND REPORT ANY LEAKS.

40RU

CHECK VOLTAGE IMBALANCE

LINE-TO-LINE VOLTS: AB V AC V BC V

(AB + AC + BC)/3 = AVERAGE VOLTAGE = V

MAXIMUM DEVIATION FROM AVERAGE VOLTAGE = V

VOLTAGE IMBALANCE = 100 X (MAX DEVIATION)/(AVERAGE VOLTAGE) =

IF OVER 2% VOLTAGE IMBALANCE, DO NOT ATTEMPT TO START SYSTEM!

CALL LOCAL POWER COMPANY FOR ASSISTANCE.

III. START--UP

CHECK INDOOR FAN MOTOR SPEED AND RECORD.

AFTER AT LEAST 10 MINUTES RUNNING TIME, RECORD THE FOLLOWING MEASUREMENTS:

COMP A1 COMP B1

OIL PRESSURE

SUCTION PRESSURE

SUCTION LINE TEMP

DISCHARGE PRESSURE

DISCHARGELINETEMP

ENTERING OUTDOOR UNIT AIR TEMP

LEAVING OUTDOOR UNIT AIR TEMP

INDOOR UNIT ENTERING AIR DB TEMP

INDOOR UNIT ENTERING AIR WB TEMP

INDOOR UNIT LEAVING AIR DB TEMP

INDOOR UNIT LEAVING AIR WB TEMP

OUTDOOR UNIT ENTERING WATER TEMP

(40RUS ONLY)

OUTDOOR UNIT LEAVING WATER TEMP

(40RUS ONLY)

INDOOR UNIT ENTERING WATER TEMP

(40RUS ONLY)

INTDOOR UNIT LEAVING WATER TEMP

(40RUS ONLY)

COMPRESSOR AMPS (L1/L2/L3) ____/____/____ ____/____/____

CHECK THE COMPRESSOR OIL LEVEL SIGHT GLASSES, ARE THE SIGHT GLASSES SHOWING

OIL LEVEL AT 1/8to 1/3FULL? (Y/N)

NOTES:

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

Catalog No: 40RU---07SI

Replaces: 40RU--- 05SI

40RU

Carrier 40Ru Users Manual 07SI

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