Carrier R-410A Air Conditioner User Manual

40RU
Packaged Air-Handling Units
60 Hz
with Puron® (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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2–20
General. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Uncrating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Unit Positioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Unit Isolation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Refrigerant and Chilled Water Piping Access . . . . . . 11
Refrigerant Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Chilled Water Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Condensate Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Fan Motors and Drives . . . . . . . . . . . . . . . . . . . . . . . . . 16
Power Supply and Wiring . . . . . . . . . . . . . . . . . . . . . . . 17
Connecting Ductwork . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Return-Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
START-UP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
SERVICE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21–34
Panels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Fan Motor Lubrication. . . . . . . . . . . . . . . . . . . . . . . . . . 21
Fan Shaft Bearings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Centering Fan Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Fan Shaft Position Adjustment . . . . . . . . . . . . . . . . . . . 22
Individual Fan Wheel Adjustment . . . . . . . . . . . . . . . . 22
Fan Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Fan Rotation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Fan Pulley Alignment . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Pulley and Drive Adjustment . . . . . . . . . . . . . . . . . . . . 23
Condensate Drains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Return-Air Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Chilled Water Coil Freeze Protection . . . . . . . . . . . . 23
Coil Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Cleaning Cooling Coil . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Cleaning Insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Replacing Filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . . CL-1, CL-2
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.
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.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause 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.
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.
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal injury,
death and/or equipment damage.
Puron® (R-410A) refrigerant systems operate at higher
pressures than standard R-22 systems. Do not use R-22
service equipment or components on Puron refrigerant
equipment.
INSTALLATION
General — Allow 21/2 ft at front and side of unit for service
clearance and airflow. 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 – 1D). See Fig. 2A and Fig. 2B
for dimensions.
PERSONAL INJURY AND ENVIRONMENTAL
HAZARD
Failure to follow this warning could cause 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.
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. 1.
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.
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.
LEGEND
TXV — Thermostatic Expansion Valve
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. 2A and Fig. 2B for locations of electrical inlets, condensate drain, duct connections, and required clearances
before setting unit in place.
Fig. 1 — Foam Block Location
Accessories — Refer to instructions shipped with each
accessory for specific information.
2
LEGEND
TXV — Thermostatic Expansion Valve
NOTES:
1. Dimensions in [ ] are in millimeters.
2.
Direction of airflow.
3. Recommended clearance:
• Rear: 3 in. (76 mm)
• 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 fieldinstalled.
UNIT WEIGHT
lb (kg)
40RUA*25
730 (331)
40RUS*25
683 (310)
UNIT
Fig. 2A — Dimensions – Size 25
3
LEGEND
TXV — Thermostatic Expansion Valve
NOTES:
1. Dimensions in [ ] are in millimeters.
2.
Direction of airflow.
3. Recommended clearance:
• Rear: 3 in. (76 mm)
• 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 fieldinstalled.
6. 40RUS may require alternate or additional
field favricated poping access holes
UNIT
40RUA*28
40RUA*30
40RUS*28
40RUS*30
Fig. 2B — Dimensions – Sizes 28 and 30
4
UNIT WEIGHT
lb (kg)
1050 (477)
1062 (482)
1035 (469)
1042 (473)
Table 1A — 40RUA Physical Data, English — Cooling Units
UNIT 40RUA*
25
28
30
NOMINAL CAPACITY (Tons)
20
25
30
Base Unit with TXV
730
1050
1062
Plenum
225
325
325
OPERATING WEIGHT (lb)
FANS
Qty...Diam. (in.)
2...15
2...18
2...18
Nominal Airflow (cfm)
8,000
10,000
12,000
6,000 – 10,000
7,500 – 12,500
9,000 – 15,000
208/230-3-60 and 460-3-60
5.0
7.5
10.0
575-3-60
5.0
7.5
10.0
208/230-3-60 and 460-3-60
1745
1745
1745
575-3-60
1745
1755
1755
Airflow Range (cfm)
Nominal Motor Hp (Standard Motor)
Motor Speed (rpm)
REFRIGERANT
R-410A
Operating charge (lb)
(approx per circuit) †
DIRECT-EXPANSION COIL
3.5
4.5
5.0
Enhanced Copper Tubes, Aluminum Sine-Wave Fins
Max Working Pressure (psig)
450
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
Fins/in.
17
15
15
2...11/8
2...13/8
2...13/8
PIPING CONNECTIONS,
Quantity...Size (in.)
DX Coil — Suction (ODF)
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
1...11/4 ODM/1 IDF
Condensate (PVC)
FILTERS
Quantity...Size (in.)
Throwaway — Factory Supplied
4...16 x 20 x 2
4...16 x 24 x 2
Access Location
4...20 x 24 x 2
4...20 x 25 x 2
Either Side
STEAM COIL ‡
Max Working Pressure (psig at 260°F)
20
Total Face Area (sq ft)
13.33
15.0
15.0
Rows...Fins/in.
1...10
1...10
1...10
Total Face Area (sq ft)
13.33
15.0
15.0
Rows...Fins/in.
2...8.5
2...12.5
2...12.5
HOT WATER COIL ‡
Max Working Pressure (psig)
150
Water Volume
LEGEND
DX
—
TXV —
†
‡
(gal)
13.9
14.3
(ft3)
1.85
1.90
Direct Expansion
Thermostatic Expansion Valve
Units are shipped without refrigerant charge.
Field installed accessory only.
5
Table 1B — 40RUA Physical Data, SI — Cooling Units
UNIT 40RUA*
25
28
30
NOMINAL CAPACITY (kW)
70
87
105
Base Unit with TXV
331
477
482
Plenum
102
148
148
2...381
2...457
2...457
3775
4119
5663
2831 – 4719
3539 – 5899
4247 – 7079
208/230-3-60 and 460-3-60
3.73
5.60
7.46
575-3-60
3.73
5.60
7.46
208/230-3-60 and 460-3-60
29.1
29.1
29.1
575-3-60
29.1
29.3
29.3
OPERATING WEIGHT (kg)
FANS
Qty...Diam. (mm)
Nominal Airflow (L/s)
Airflow Range (L/s)
Nominal Motor kW (Standard Motor)
Motor Speed (r/s)
REFRIGERANT
R-410A
Operating charge (kg)
(approx per circuit) †
DIRECT-EXPANSION COIL
1.59
2.04
2.27
Enhanced Copper Tubes, Aluminum Sine-Wave Fins
Max Working Pressure (kPag)
3102
Face Area (sq m)
1.85
2.30
No. of Splits
2
2
2
No. of Circuits per Split
18
20
24
Split Type...Percentage
2.77
Face...50/50
Fins/m
670
591
591
2...11/8
2...13/8
2...13/8
PIPING CONNECTIONS,
Quantity...Size (in.)
DX Coil — Suction (ODF)
DX Coil — Liquid Refrigerant (ODF)
2...5/
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
1...11/4 ODM/1 IDF
Condensate (PVC)
FILTERS
Quantity...Size (mm.)
8
Throwaway — Factory Supplied
4...406 x 508 x 51
4...406 x 610 x 51
Access Location
4...508 x 610 x 51
4...508 x 635 x 51
Either Side
STEAM COIL ‡
Max Working Pressure (kPag at 126°C)
138
Total Face Area (sq m)
Rows...Fins/m
1.24
1.39
1.39
1...394
1...394
1...394
HOT WATER COIL ‡
Max Working Pressure (kPag)
1034
Total Face Area (sq m)
Rows...Fins/m
1.24
1.39
1.39
2...335
2...335
2...335
Water Volume
LEGEND
DX
—
TXV —
†
‡
(L)
52.6
54.1
(m3)
0.052
0.054
Direct Expansion
Thermostatic Expansion Valve
Units are shipped without refrigerant charge.
Field installed accessory only.
6
Table 1C — 40RUS Physical Data, English — Chilled Water Units
UNIT 40RUS*
25
28
30
NOMINAL CAPACITY (Tons)
20
25
30
Base Unit
683
1035
1042
Plenum
225
325
325
OPERATING WEIGHT (lb)
FANS
Qty...Diam. (in.)
2...15
2...18
2...18
Nominal Airflow (cfm)
8,000
10,000
12,000
6,000 – 10,000
7,500 – 12,500
9,000 – 15,000
208/230-3-60 and 460-3-60
5.0
7.5
10.0
575-3-60
5.0
7.5
10.0
208/230-3-60 and 460-3-60
1745
1745
1745
575-3-60
1745
1755
1755
Airflow Range (cfm)
Nominal Motor Hp (Standard Motor)
Motor Speed (rpm)
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...13/8 ODM
2...21/8 ODM
2...21/8 ODM
Chilled Water — Out
2...13/8 ODM
2...21/8 ODM
2...21/8 ODM
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
1...11/4 ODM/1 IDF
Condensate (PVC)
FILTERS
Quantity...Size (in.)
Throwaway — Factory Supplied
4...16 x 20 x 2
4...16 x 24 x 2
Access Location
4...20 x 24 x 2
4...20 x 25 x 2
Either Side
STEAM COIL ‡
Max Working Pressure (psig at 260°F)
20
Total Face Area (sq ft)
13.33
15.0
15.0
Rows...Fins/in.
1...10
1...10
1...10
Total Face Area (sq ft)
13.33
15.0
15.0
Rows...Fins/in.
2...8.5
2...12.5
2...12.5
HOT WATER COIL ‡
Max Working Pressure (psig)
150
Water Volume
(gal)
13.9
14.3
(ft3)
1.1
1.90
LEGEND
‡ Field installed accessory only.
7
Table 1D — 40RUS Physical Data, SI — Chilled Water Units
UNIT 40RUS*
25
28
30
NOMINAL CAPACITY (kW)
70
87
105
Base Unit
310
469
473
Plenum
102
148
148
2...381
2...457
2...457
OPERATING WEIGHT (kg)
FANS
Qty...Diam. (mm)
Nominal Airflow (L/s)
3775
4719
5663
2831 – 4719
3539 – 5899
4247 – 7079
208/230-3-60 and 460-3-60
3.73
5.60
7.46
575-3-60
3.73
5.60
7.46
208/230-3-60 and 460-3-60
29.1
29.1
29.1
575-3-60
29.1
29.3
29.3
Airflow Range (L/s)
Nominal Motor kW (Standard Motor)
Motor Speed (r/s)
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
3...591
3...591
3...591
Chilled Water — In
2...13/8 ODM
2...21/8 ODM
2...21/8 ODM
Chilled Water — Out
2...13/8 ODM
2...21/8 ODM
2...21/8 ODM
Rows...Fins/m
PIPING CONNECTIONS,
Quantity...Size (in.)
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
1...11/
Condensate (PVC)
FILTERS
Quantity...Size (mm.)
4...406 x 508 x 51
4...406 x 610 x 51
Access Location
STEAM
4
ODM/1 IDF
Throwaway — Factory Supplied
4...508 x 610 x 51
4...508 x 635 x 51
Either Side
COIL ‡
Max Working Pressure (kPag at 125°C)
138
Total Face Area (sq m)
Rows...Fins/m
1.24
1.39
1.39
1...394
1...394
1...394
HOT WATER COIL ‡
Max Working Pressure (kPag)
1034
Total Face Area (sq m)
Rows...Fins/m
1.24
1.39
1.39
2...335
2..493
2...493
Water Volume
(L)
52.6
54.1
(m3)
0.052
0.054
LEGEND
‡ Field installed accessory only.
8
1
2
4
0 R U A A 2
3
4
5
6
_____________
7
8
9
10 11 12 13 14 15 16 17 18
5 A 1 A 6
– 0 A 0 A 0
____
Model Type
Brand / Packaging
40RU = Carrier Fan Coil
Puronr R--- 410A Refrigerant
0 = Standard
Not Used
A = Place Holder
Type of Coil
A = Standard DX Coil
S = Chilled Water Coil
Service Options
0 = Non-Painted Cabinet
1 = Painted Cabinet
Refrigerant Options
A = None
B = Steam Coil
C = Hot Water Coil
Not Used
A = Place Holder
Nominal Tonnage
25 = 20 Tons
28 = 25 Tons
30 = 30 Tons
Not Used
0 = Place Holder
Design Rev
--- = Catalog Model Number
Not Used
A = Place Holder
Voltage
1 = 575/3/60
5 = 208/ 230/3/60
6 = 460/3/60
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
4 = Fan Drive and Motor - Low / Motor Efficiency - Premium
5 = Fan Drive and Motor - Med / Motor Efficiency - Premium
6 = Fan Drive and Motor - High / Motor Efficiency - Premium
Fig. 3 — Model Number Nomenclature
POSITION NUMBER
TYPICAL
1
4
2
8
3
0
4
8
POSITION
1−2
3−4
5
6−10
5
G
6
1
7
2
8
3
9
4
10
5
DESIGNATES
Week of manufacture (fiscal calend ar)
Year of manufacture (”08” = 2008)
Manufacturing location (G = ETP, Texas, USA)
Seq uential numb er
Fig. 4 — Serial Number Nomenclature
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. 5 for condensate connections for each unit
position.
Typical positioning and alternate return air locations are shown
in Fig. 5. 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. 6) for preferred suspension technique.
The unit needs support underneath to prevent sagging.
LEGEND
Accessory Line
Alternate Air Intake and Discharge
Air Intake and Discharge
Note: Maintain recommended clearances
per Figs. 2A–2B
IMPORTANT: Do NOT attempt to install unit with return
air entering top panel of unit. Condensate will not drain
from unit.
Fig. 5 — Typical Unit Positioning
9
OVERHEAD SUSPENSION ACCESSORY
UNIT SIZE 25
UNIT SIZES 28, 30
NOTE: Dimensions in [ ] are millimeters
Fig. 6 — Preferred Suspension Technique
10
Unit Isolation — Where extremely quiet operation is
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. 7, 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. 8.
NOTE: Be sure to remove the styrofoam shipping pad from
the TXV. Verify that it has been removed. See Fig. 1.
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. RUS*25,
28, and 30 units require additional holes which must be fieldfabracated to accomodiate the piping. See Fig. 7 for the
positions and dimensions of the additional access holes
required for the RUS units. Recommended access hole use is
also listed for all units. Note that Fig. 7 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: 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. 9.
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.10.
IMPORTANT: Do not bury refrigerant piping underground.
Refrigerant Piping — See Tables 1A–1D 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.
8
7
6
5
4
C
B
A
D
3
2
1
FIELD-FABRICATED HOLE DIAMETERS
in. (mm)
FIELD-FABRICATED HOLE POSITION
DIMENSIONS, in. (mm)
UNIT
USE HOLE
NUMBERS
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)
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)
Fig. 7 — Refrigerant and Chilled Water Piping Access Holes
11
17.0 (431.8)
AIRFLOW
15 DIAMS
MIN
10
DIAMS
TXV
SENSING
BULB
LOWER
SPLIT
AIRFLOW
EQUALIZER LINE
TXV
SENSING
BULB
UPPER
SPLIT
15 DIAMS
MIN
SOLENOID*
VALVE
SIGHT
GLASS
TXV
8 DIAMS
MIN
EQUALIZER
FILTER
LINE
DRIER
TXV
10
DIAMS
8 DIAMS
MIN
INDOOR
COIL
LEGEND:
* – Not required when mated to units 38AP_025 - 060
TXV – Thermostatic Expansion Valve
NOTE: Component location arrangemet shown for field installation of
sight glasses, solenoid valves, filter driers, and TXV sensing bulbs.
The TXVs and equilizer lines are factory installed.
Fig. 8 — Face-Split Coil Suction and Liquid Line Piping (Typical)
LEGEND
TXV — Thermostatic Expansion Valve
NOTE: The 8 o’clock position is shown above.
FIRST ON/LAST OFF = B
VERTICAL INSTALLATION
Fig. 10 — TXV Sensing Bulb Location
FIRST ON/LAST OF F = A
HORIZONTAL INSTALLATIO N
Fig. 9 — Typical Evaporator Coil Connections (40RU)
12
Table 2 — Factory-Installed Nozzle and Distributor Data
FEEDER TUBES
PER DISTRIBUTOR †
Qty...Size (in.)
UNIT
COIL TYPE
STD
TXV
Qty...Part No.
DISTRIBUTOR
Qty...Part No.
NOZZLE
Qty...Part No.
40RU*25
4 Row
2...BBIZE-8-GA
2...1135
18...3/16
2...G6
40RU*28
4 Row
2...BBIZE-15-GA
2...1126
20...3/16
2...C15
40RU*30
4 Row
2...BBIZE-15-GA
2...1126
24...3/16
2...C17
† Feeder tube size is 1/ in. (6.35 mm).
4
NOTE: Hot gas bypass applications require field-supplied auxiliary side connector.
Table 3 — Fitting Requirements
UNIT
ACCESS
HOLE NO. ‡
CONNECTION
TYPE
FITTINGS REQUIRED †
(in.)
CIRCUIT
11/8 Street Elbow
1
Suction
Lower
11/8 Nipple, 75/8 L
11/8 Long Radius Elbow
2
Liquid
Lower
40RUA25
3
Liquid
Upper
5/
8
Street Elbow
5/
8
Nipple, 61/2 L
5/
8
Long Radius Elbow
5/
8
Street Elbow
5/
8
Nipple, 91/2 L
5/
8
11/
4
Suction
Upper
Long Radius Elbow
8
Nipple, 55/8 L
11/8 Long Radius Elbow
11/8 Nipple, 11 L
11/8 Long Radius Elbow
13/8 Long Radius Elbow
4
Supply
Lower
13/8 Nipple, 33/4 L
13/8 Long Radius Elbow
13/8 Long Radius Elbow
5
Return
Lower
13/8 Nipple, 33/8 L
13/8 Long Radius Elbow
40RUS25
13/8 Long Radius Elbow
6
Return
Upper
13/8 Nipple, 7 L
13/8 Long Radius Elbow
13/8 Long Radius Elbow
7
Supply
Upper
13/8 Nipple, 113/4 L
13/8 Long Radius Elbow
13
Table 3 — Fitting Requirement (cont)
UNIT
ACCESS
HOLE NO. ‡
CONNECTION
TYPE
FITTINGS REQUIRED†
(in.)
CIRCUIT
13/8 Street Elbow
1
Suction
Lower
13/8 Nipple, 11 L
13/8 Long Radius Elbow
2
Liquid
Lower
40RUA28
3
Liquid
Upper
5/
8
Street Elbow
5/
8
Nipple, 11/2 L
5/
8
Long Radius Elbow
5/
8
Street Elbow
5/
8
Nipple, 191/2 L
5/
8
Long Radius Elbow
13/8 Nipple, 43/16 L
4
Suction
Upper
13/8 Long Radius Elbow
13/8 Nipple, 231/4 L
13/8 Long Radius Elbow
21/8 Long Radius Elbow
5
Supply
Lower
21/8 Nipple, 31/2 L
21/8 Long Radius Elbow
21/8 Long Radius Elbow
6
Return
Lower
21/8 Nipple, 3 L
21/8 Long Radius Elbow
40RUS*28, 30
21/8 Long Radius Elbow
7
Return
Upper
21/8 Nipple, 67/8 L
21/8 Long Radius Elbow
21/8 Long Radius Elbow
8
Supply
Upper
21/8 Nipple, 117/8 L
21/8 Long Radius Elbow
13/8 Street Elbow
1
Suction
Lower
13/8 Nipple, 3 L
13/8 Long Radius Elbow
2
Liquid
Lower
40RUA*30
3
Liquid
Upper
5/
8
Street Elbow
5/
8
Nipple, 73/4 L
5/
8
Long Radius Elbow
5/
8
Street Elbow
5/
8
Nipple, 181/2 L
5/
8
13 /
4
Suction
Upper
Long Radius Elbow
8
Nipple, 43/16 L
13/8 Long Radius Elbow
13/8 Nipple, 191/4 L
13/8 Long Radius Elbow
‡
See Fig. 7 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.
14
Chillled Water Piping — See Tables 1C and 1D for
To size, design, and install chilled water piping, consult the
Carrier System Design manual. See Fig. 11 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.
chilled water connecton sizes. For ease in bazing, 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. 7, which lists
recommended knockouts and access holes to use for each
40RUS unit size.
Fig. 11 — Typical 40RUS Chilled Water Piping
15
Condensate Drain — Install a trapped condensate drain
line to unit connection as shown in Fig. 12. The unit drain connection is a PVC stub. See Fig. 13. 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]
Fig. 13 — 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. 13. 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. Retighten
screws. The pan should have a pitch of at least 1/4-in. over its
length toward the drain connection.
NOTE: Dimensions in [ ] are in millimeters
Fig. 12 — Condensate Drains
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 — fan pulley
2 — matched fan belts (40RUA*25-30, 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.
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.
16
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.
FAN SCROLL
FAN
CONTACTOR
BOX
MOTOR
AND DRIVE
WIRE
ACCESS
FAN DRIVE
PULLEY
CONDENSATE
DRAIN
CONNECTION
(HORIZONTAL)
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.
COIL
FILTER
ELEMENTS
TXV BULB
ACCESS
REFRIGERANT
PIPING ACCESS
FILTER
RETAINER
CLIP
CONDENSATE
DRAIN
CONNNECTION
(VERTICAL)
LEGEND
TXV — Thermostatic Expansion Valve
Fig. 15 — Wiring and Service Access
(Side Panel Removed)
FIRE HAZARD
Failure to follow this warning could result in intermittent
operation or performance satisfaction.
Do not connect aluminum wire between disconnect switch
and condensing unit. Use only copper wire.
(See Fig. 14)
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. 15 and 16). Wire the thermostat to the
24-v control circuit terminal block located in the side of the fan
contactor control box, according to Fig. 17 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. 17.
ELECTRIC
DISCONNECT
SWITCH
COPPER
105° C 600V
RJ A
WIRE ONLY
ALUMINUM
WIRE
13
12
11
W
23
22
21
Fig. 14 — 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-in. ring terminal.
FAN
CONTACTOR
24V
TERMINAL
BLOCK
POWER
WIRING
KNOCKOUT
Fig. 16 — Fan Contactor Box and Terminal Block
(Cover Removed) (Typical)
17
Table 4 — Electrical Data, Standard Motors
UNIT
40RUA*25
40RUS*25
40RUA*28
40RUS*28
40RUA*30
40RUS*30
FAN MOTOR
V-PH-Hz †
VOLTAGE
LIMITS
Hp (kW)
208/230-3-60
187-253
460-3-60
575-3-60
POWER SUPPLY
FLA
Minimum
Circuit Amps
MOCP
5.0 (3.73)
14.6/12.8
18.3/16.0
30/25
414-506
5.0 (3.73)
6.4
8.0
15
518-632
5.0 (3.73)
5.1
6.4
15
208/230-3-60
187-253
7.5 (5.59)
21.4/19.4
26.9/24.3
45/40
460-3-60
414-506
7.5 (5.59)
9.7
12.1
20
575-3-60
518-632
7.5 (5.59)
7.8
9.8
15
208/230-3-60
187-253
10.0 (7.46)
28.2/26.8
35.3/33.5
60/60
460-3-60
414-506
10.0 (7.46)
13.4
16.8
30
575-3-60
518-632
10.0 (7.46)
10.3
12.9
20
See Legend and Notes below.
Table 5 — Electrical Data, Alternate Motors
UNIT
40RUA*25
40RUS*25
40RUA*28
40RUA*30
40RUS*28
40RUS*30
FAN MOTOR
POWER SUPPLY
V-PH-Hz †
VOLTAGE
LIMITS
Hp (kW)
FLA
Minimum
Circuit Amps
MOCP
208/230-3-60
187-253
7.5 (5.59)
21.4/19.4
26.9/24.3
45/40
460-3-60
414-506
7.5 (5.59)
9.7
12.1
20
575-3-60
518-632
7.5 (5.59)
7.8
9.8
15
208/230-3-60
187-253
10.0 (7.46)
28.2/26.8
35.3/33.5
60/60
460-3-60
414-506
10.0 (7.46)
13.4
16.8
30
575-3-60
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
FLA
MOCP
†
Determine maximum deviation from average voltage
(AB) 397 – 393 = 4 v
(BC) 403 – 397 = 6 v
(AC) 397 – 396 = 1 v
Maximum deviation is 6 v.
Determine percent voltage imbalance.
6
% Voltage Imbalance = 100 x
397
= 1.5%
— Full Load Amps
— Maximum Overcurrent Protection
Motors are designed for satisfactory operation within 10% of nominal
voltages shown. Voltages should not exceed the limits shown in the
Voltage Limits column.
NOTES:
1. Minimum circuit amps (MCA) and MOCP values are calculated in accordance with NEC (National Electrical Code), Article 440.
2. Motor FLA values are established in accordance with UL (Underwriters’
Laboratories) 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 following formula to determine the percentage of
voltage imbalance.
max voltage deviation from average voltage
% Voltage Imbalance = 100 x
average voltage
This amount of phase imbalance is satisfactory because 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.
EXAMPLE: Supply voltage is 400-3-50.
AB = 393 v
BC = 403 v
AC = 396 v
393 + 403 + 396
3
1192
=
3
= 397
Average Voltage =
18
LEGEND
EQUIP
GND
HC
HTR
IFC
IFM
TB
T’STAT
—
—
—
—
—
—
—
—
Equipment
Ground
Heating Contactor
Electric Heater
Indoor-Fan Contactor
Indoor-Fan Motor
Terminal Block
Thermostat
Factory Wiring
Field Control Wiring
NOTE: Use copper conductors only.
Fig. 17 — Unit Wiring
19
Table 6 — Fan Contactor Coil Data
UNIT
40RU**
VOLTAGE
(vac)
MAXIMUM
HOLDING
VA
25, 28, 30
24
10
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. 19. 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 CONNECTION — 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 CONNECTION — Connect outdoorair inlet to field-installed accessory economizer. Refer to
Economizer Installation Instructions.
Return-Air Filters — Type and size of filters are shown
in Tables 1A – 1D and are factory-supplied and factoryinstalled. 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.
Connecting Ductwork — Refer to the Carrier System
Design Manual for the recommended design and layout of
ductwork. Fig. 18 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.
Fig. 18 — Typical Fan Discharge Connections for Multiple Fan Units
20
Fig. 19 — Duct Flange Installation
START-UP
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.
Before starting unit, check the following and correct as
necessary:
• Is unit solidly supported?
• Is fan adjusted for speed and pulley alignment?
• Are pulleys, motor, and bearings securely mounted?
• Are there any loose parts that will rattle or vibrate?
• Is condensate drain pan pitched for correct drainage?
• Are coil baffle plates tight against coil to prevent air
bypass?
• Are all panels securely fastened?
• Are all electrical connections correct and tight?
Also refer to condensing unit instructions before starting a split
system. A split system start-up checklist is provided at the end
of these instructions.
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.
Fan Motor Lubrication — Fan motor supplied with
unit is permanently lubricated and requires no further
lubrication.
Fan Shaft Bearings — Size 25-30 units have pillowblock bearings (Fig. 20) that must be lubricated with suitable
bearing grease approximately every 3 months. See Table 7 for
suitable lubricants.
Table 7 — Lubricant Data
SERVICE
MANUFACTURER
Inspection and maintenance should be performed at regular intervals and should include the following:
• Complete cleaning of cabinet, fan wheel, cooling coil,
condensate pan and drain, heating coils, and return-air
grille (if present).
• Inspection of panels and sealing of unit against air
leakage.
• Adjustment of fan motor, belt, bearings, and wheels.
• Cleaning or replacement of filters.
• Testing for cooling/heating system leaks.
• Checking of all electrical connections.
LUBRICANT
Mobil
Mobilplex EP No. 2
Sunoco
Prestige 42
Texaco
Multifak 2
Texaco
Regal AFB-2*
*Preferred lubricant, contains rust and oxidation inhibitors.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could cause 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.
Fig. 20 — Fan Shaft, Bearings, and Fan Wheel (Typical)
21
Centering Fan Wheel — If fan and fan shaft assembly
Individual Fan Wheel Adjustment — Loosen the
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.
2 locking bolts holding fan wheel hub to shaft. See Fig. 20.
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 Shaft Position Adjustment — Loosen setscrew or locking collar of each fan shaft bearing. Slide shaft
into correct position and replace locking collar (Fig. 21). 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.
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 retightening 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. 22.
If complete belt replacement is required during servicing,
loosen the motor plate mounting bolts (Fig. 22), 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. 23.
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.
Fig. 21 — Fan Shaft Bearing
Fig. 22 — Fan Motor Mounting
22
Fig. 23 — Fan Rotation
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. 24 to check proper pulley
alignment.
4. If pulleys are not in correct alignment, loosen the motor
holddown bolts and slide the motor axially until the
pulleys are aligned.
5. Tighten motor holddown bolts.
Fig. 24 — Fan Pulley Adjustments
Alternative freeze protection methods follow:
• Circulate hot water within the water coil’s supply main
or supplementary space heating.
• Close off supply lines to unit and open a union or fieldsupplied drain valve in the return line.
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. 24).
IMPORTANT: Draining from return line will not completely drain water from coils.
• After draining as much water as possible from coils, add
sufficient antifreeze to prevent residual water in the coil
from freezing.
• Add a sufficient quantity of non-corrosive antifreeze to
the entire system to prevent all water within the system
from freezing.
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.
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.
for filter accessibility and removal. Replace with clean filters of
the sizes listed in Tables 1A-1D.
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.
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.
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.
Condensate Drains — Keep condensate drains free of
dirt and foreign matter.
Return-Air Filters — Refer to Replacing Filters section
23
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. 25).
3. Remove old filters by lifting and tilting them out of the
filter track. See Fig. 15 and 26. Use the factory-supplied
filter hook to slide filters within reach for removal. 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.
Fig. 26 — Filter Removal/Replacement
SLID
E
FILTER
RETAINE
CLIP
Fig. 25 — Remove Filter Retainer Clip
24
Table 8A — Fan Motor Data, Standard Motor — English
40RUA*25
40RUS*25
40RUA*28
40RUS*28
40RUA*30
40RUS*30
1745
1745
1745
5.0
7.5
10.0
Frame (NEMA)
S184T
S213T
S215T
Shaft Dia (in.)
11/8
1 3 /8
1 3 /8
1745
1755
1755
UNIT
208/230-3-60 and 460-3-60
Speed (rpm)
Hp
575-3-60
Speed (rpm)
Hp
5.0
7.5
10.0
Frame (NEMA)
184T
S213T
D215T
Shaft Dia (in.)
11/8
1 3 /8
1 3 /8
LEGEND
NEMA — National Electrical Manufacturers Association
Table 8B — Fan Motor Data, Alternate Motor — English
40RUA*25
40RUS*25
40RUA*28
40RUS*28
40RUA*30
40RUS*30
1745
1745
1745
7.5
10.0
10.0
Frame (NEMA)
S213T
S215T
S215T
Shaft Dia (in.)
13 /8
1 3 /8
1 3 /8
1755
1750
1750
7.5
10.0
10.0
Frame (NEMA)
S213T
D215T
D215T
Shaft Dia (in.)
1 3 /8
1 3 /8
1 3 /8
UNIT
208/230-3-60 and 460-3-60
Speed (rpm)
Hp
575-3-60
Speed (rpm)
Hp
LEGEND
NEMA — National Electrical Manufacturers Association
25
Table 8C — Fan Motor Data, Standard Motor — SI
40RUA*25
40RUS*25
40RUA*28
40RUS*28
40RUA*30
40RUS*30
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
29.08
29.25
29.25
UNIT
208/230-3-60 and 460-3-60
575-3-60
Speed (r/s)
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
40RUA*25
40RUS*25
40RUA*28
40RUS*28
40RUA*30
40RUS*30
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
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
UNIT
208/230-3-60 and 460-3-60
575-3-60
LEGEND
NEMA — National Electrical Manufacturers Association
26
Table 9A — Standard Drive Data, 60 Hz — English
UNIT
40RUA*25
40RUS*25
40RUA*28
40RUS*28
40RUA*30
40RUS*30
3.7-4.7
4.3-5.3
4.3-5.3
3.0
3.0
3.0
MOTOR DRIVE
Motor Pulley Pitch Diameter (in.)
Pulley Factory Setting
Full Turns Open
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
679-863
682-841
674-831
Max Allowable Speed (rpm)
1200
1100
1100
Change per 1/2 Turn of
Moveable Motor Pulley
Flange
15.3
13.1
13.1
6
6
6
9.1210.99
6.679.43
6.679.43
Range
MAX FULL TURNS FROM
CLOSED POSITION
SHAFTS CENTER DISTANCE (in.)
†
Four belts shipped with unit. Use correct set of 2 belts sized according to the pully setting.
Table 9B — Medium-Static Drive Data, 60 Hz — English
UNIT
40RUA*25
40RUS*25
40RUA*28
40RUS*28
40RUA*30
40RUS*30
4.3-5.3
4.3-5.3
4.3-5.3
3.0
3.0
3.0
MOTOR DRIVE
Motor Pulley Pitch Diameter (in.)
Pulley Factory Setting
Full Turns Open
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 †
41.8
(2) 38.8
(2) 39.8
(2) 38.8
(2) 39.8
881
881
881
Belt Pitch (in.)
FAN SPEEDS (rpm)
Factory Setting
Range
798-984
798-984
798-984
Max Allowable Speed (rpm)
1200
1100
1100
Change per 1/2 Turn of
Moveable Motor Pulley
Flange
15.3
15.3
15.3
6
6
6
9.1610.99
6.679.43
6.679.43
MAX FULL TURNS FROM
CLOSED POSITION
SHAFTS CENTER DISTANCE (in.)
†
Four belts shipped with unit. Use correct set of 2 belts sized according to the pully setting.
27
Table 9C — High-Static Drive Data, 60 Hz — English
UNIT
40RUA*25
40RUS*25
40RUA*28
40RUS*28
40RUA*30
40RUS*30
4.3-5.3
4.3-5.3
4.3-5.3
3.0
3.0
3.0
MOTOR DRIVE
Motor Pulley Pitch Diameter (in.)
Pulley Factory Setting
Full Turns Open
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
10141200 †
8731075
8731075
Max Allowable Speed (rpm)
1200
1100
1100
Change per 1/2 Turn of
Moveable Motor Pulley
Flange
19.4
16.7
16.7
6
6
6
8.1610.02
6.679.43
6.679.43
MAX FULL TURNS FROM
CLOSED POSITION
SHAFTS CENTER DISTANCE (in.)
†
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
40RUS*25
40RUA*28
40RUS*28
40RUA*30
40RUS*30
MOTOR DRIVE
94.0119.4
Motor Pulley Pitch Diameter (mm)
Pulley Factory Setting
Full Turns Open
3.0
109.2134.6
109.2134.6
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 †
1062
(2) 1987
(2) 1113
(2) 1987
(2) 1113
12.9
12.5
12.5
Belt Pitch (mm)
FAN SPEEDS (r/s)
Factory Setting
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
6
6
6
232-279
169-240
169-240
MAX FULL TURNS FROM
CLOSED POSITION
SHAFTS CENTER DISTANCE (mm)
†
Four belts shipped with unit. Use correct set of 2 belts sized according to the pully setting.
28
Table 9E — Medium-Static Drive Data, 60 Hz — SI
UNIT
40RUA*25
40RUS*25
40RUA*28
40RUS*28
40RUA*30
40RUS830
109.2134.6
109.2134.6
109.2134.6
3.0
3.0
3.0
MOTOR DRIVE
Motor Pulley Pitch Diameter (mm)
Pulley Factory Setting
Full Turns Open
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
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 1/2 Turn of
Moveable Motor Pulley
Flange
0.255
0.255
0.255
6
6
6
232-279
169-240
169-240
Range
MAX FULL TURNS FROM
CLOSED POSITION
SHAFTS CENTER DISTANCE (mm)
†
Four belts shipped with unit. Use correct set of 2 belts sized according to the pully setting.
Table 9F — High-Static Drive Data, 60 Hz — SI
UNIT
40RUA*25
40RUS*25
40RUA*28
40RUS*28
40RUA*30
40RUS*30
MOTOR DRIVE
109.2134.6
Motor Pulley Pitch Diameter (mm)
Pulley Factory Setting
Full Turns Open
109.2134.6
109.2134.6
3.0
3.0
3.0
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
Factory Setting
18.6
17.1
17.1
Range
16.920.0 †
14.617.9
14.617.9
Max Allowable Speed (r/s)
20.0
18.3
18.3
Change per 1/2 Turn of
Moveable Motor Pulley
Flange
0.323
0.278
0.278
6
6
6
207-255
169-240
169-240
FAN DRIVE
FAN SPEEDS (r/s)
MAX FULL TURNS FROM
CLOSED POSITION
SHAFTS CENTER DISTANCE (mm)
†
It is possible to adjust drive so that fan speed exceeds maximum allowable. DO NOT exceed 20 r/s.
29
Table 10A — 40RU Standard Fan Performance Data —
0.0-2.4 in. wg External Static Pressure — English
EXTERNAL STATIC PRESSURE (in. wg)
UNIT
AIRFLOW
(Cfm)
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
40RUA*25
40RUS*25
6,000
7,000
8,000
9,000
10,000
532
608
686
764
843
1.25
1.93
2.83
3.97
5.38
569
641
716
791
868
1.39
2.09
3.01
4.18
5.62
639
702
770
841
914
1.69
2.42
3.38
4.59
6.09
711
763
823
888
957
2.06
2.08
3.77
5.02
6.55
781
824
876
935
1000
2.48
3.23
4.21
5.47
7.02
846
885
930
982
1042
2.93
3.71
4.70
5.96
7.53
905
943
983
1030
1084
3.60
4.23
5.24
6.51
8.08
40RUA*28
40RUS*28
7,500
8,750
10,000
11,250
12,500
15,000
456
521
587
653
720
829
1.29
1.98
2.88
4.03
5.46
8.84
490
551
614
678
743
850
1.47
2.18
3.11
4.29
5.75
9.19
556
608
664
724
785
888
1.85
2.61
3.59
4.82
6.33
9.88
621
664
714
768
825
924
2.25
3.07
4.09
5.37
6.93
10.57
678
720
763
812
865
958
2.64
3.53
4.62
5.95
7.55
11.27
729
770
812
856
904
991
3.06
3.99
5.15
6.54
8.20
11.99
778
816
857
899
944
1024
3.60
4.45
5.68
7.14
8.86
12.73
40RUA*30
40RUS*30
9,000
10,500
12,000
13,500
15,000
521
596
673
751
829
1.99
3.16
4.63
6.51
8.84
550
623
698
773
850
2.25
3.40
4.90
6.82
9.19
616
672
743
815
888
2.77
3.89
5.45
7.44
9.88
676
720
785
853
924
3.23
4.40
6.02
8.06
10.57
731
767
826
890
958
3.72
4.94
6.62
8.71
11.27
782
814
867
927
991
4.20
5.50
7.23
9.38
11.99
829
859
908
963
1024
4.70
6.05
7.87
10.07
12.73
0.0
0.2
0.4
0.6
0.8
1.0
1.2
See Legend and Notes on page 34.
Table 10A — 40RU Standard Fan Performance Data —
0.0-2.4 in. wg External Static Pressure — English (cont)
EXTERNAL STATIC PRESSURE (in. wg)
UNIT
AIRFLOW
(Cfm)
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
40RUS*25
6,000
7,000
8,000
9,000
10,000
954
990
1028
1073
1126
3.83
4.74
5.79
7.11
8.75
1005
1040
1078
1120
1166
4.27
5.24
6.38
7.72
9.37
1052
1090
1130
1169
—
4.72
5.80
7.00
8.37
—
1098
1135
1173
—
—
5.22
6.30
7.60
—
—
1142
1176
—
—
—
5.67
6.84
—
—
—
—
—
—
—
—
—
—
—
—
—
40RUA*28
40RUS*28
7,500
8,750
10,000
11,250
12,500
15,000
831
859
900
941
984
1057
4.41
4.97
6.20
7.73
9.53
13.49
870
901
939
980
1022
1090
5.10
5.59
6.74
8.32
10.19
14.28
913
944
976
1017
1058
—
5.90
6.42
7.33
8.90
10.84
—
950
980
1013
1052
1093
—
6.88
7.20
8.00
9.51
11.49
—
985
1020
1050
1088
—
—
7.70
8.10
8.82
10.16
—
—
—
—
—
—
—
—
—
—
—
—
—
—
40RUA*30
40RUS*30
9,000
10,500
12,000
13,500
15,000
866
902
949
1000
1057
5.20
6.60
8.50
10.78
13.49
899
942
988
1036
1090
5.85
7.14
9.14
11.49
14.28
950
980
1026
1073
—
6.65
7.70
9.76
12.21
—
989
1016
1062
—
—
7.38
8.31
10.38
—
—
1029
1051
1095
—
—
8.32
8.99
11.01
—
—
1077
1085
—
—
—
9.74
9.77
—
—
—
See Legend and Notes on page 34.
30
Table 10B — 40RU Standard Fan Performance Data —
0-600 kPa External Static Pressure — SI
EXTERNAL STATIC PRESSURE (kPa)
UNIT
AIRFLOW
(L/s)
r/s
kW
r/s
kW
r/s
kW
r/s
kW
r/s
kW
r/s
kW
r/s
kW
40RUA*25
40RUS*25
2830
3300
3780
4250
4720
8.86
10.14
11.43
12.74
14.05
0.94
1.44
2.11
2.96
4.01
9.48
10.69
11.93
13.119
14.47
1.04
1.56
2.25
3.12
4.19
10.65
11.70
12.84
14.02
15.23
1.26
1.81
2.52
3.43
4.54
11.84
12.71
13.71
14.81
15.96
1.53
2.08
2.81
3.74
4.88
13.01
13.73
14.60
15.59
16.66
1.85
2.41
3.14
4.08
5.24
14.10
14.74
15.49
16.37
17.36
2.19
2.77
3.51
4.45
5.62
15.08
15.71
16.39
17.17
18.07
2.53
3.15
3.91
4.85
6.03
40RUA*28
40RUS*28
3540
4130
4720
5310
5900
7.60
8.68
9.78
10.89
12.00
0.96
1.47
2.15
3.01
4.07
8.16
9.18
10.23
11.30
12.38
1.09
1.62
2.32
3.20
4.29
9.27
10.13
11.07
12.06
13.09
1.38
1.94
2.67
3.59
4.72
10.34
11.07
11.89
12.80
13.75
1.68
2.29
3.05
4.00
5.17
11.30
11.99
12.72
13.53
14.41
1.97
2.63
3.45
4.43
5.63
12.15
12.84
13.53
14.27
15.07
2.28
2.97
3.84
4.88
6.11
12.97
13.60
14.29
14.99
15.74
2.68
3.32
4.23
5.33
6.61
40RUA*30
40RUS*30
4250
4960
5660
6370
7080
8.68
9.93
11.21
12.51
13.82
1.48
2.35
3.45
4.85
6.59
9.17
10.38
11.63
12.89
14.17
1.68
2.53
3.66
5.08
6.85
10.27
11.21
12.38
13.58
14.81
2.07
2.90
4.07
5.54
7.36
11.27
11.99
13.08
14.22
15.40
2.41
3.28
4.49
6.01
7.88
12.19
12.78
13.76
14.83
15.97
2.77
3.68
4.93
6.49
8.40
13.03
13.56
14.45
15.44
16.52
3.13
4.10
5.39
6.99
8.94
13.81
14.32
15.14
16.05
17.06
3.50
4.51
5.87
7.51
9.49
0
50
100
150
200
250
300
See Legend and Notes on page 34.
Table 10B — 40RU Standard Fan Performance Data —
0-600 kPa External Static Pressure — SI (cont)
EXTERNAL STATIC PRESSURE (kPa)
UNIT
AIRFLOW
(L/s)
r/s
kW
r/s
kW
r/s
kW
r/s
kW
r/s
kW
r/s
kW
40RUA*25
40RUS*25
2830
3300
3780
4250
4720
15.90
16.50
17.13
17.88
18.77
2.86
3.53
4.32
5.30
6.52
16.75
17.33
17.97
18.67
19.43
3.18
3.91
4.76
5.76
6.99
17.53
18.17
18.83
19.48
—
3.52
4.32
5.22
6.24
—
18.30
18.92
19.55
—
—
3.89
4.70
5.67
—
—
19.03
19.60
—
—
—
4.23
5.10
—
—
—
—
—
—
—
—
—
—
—
—
—
40RUA*28
40RUS*28
3540
4130
4720
5310
5900
13.85
14.31
14.99
15.68
16.39
3.29
3.71
4.62
5.77
7.10
14.50
15.01
15.65
16.34
17.03
3.80
4.17
5.02
6.20
7.60
15.22
15.74
16.27
16.95
17.64
4.40
4.79
5.46
6.64
8.08
15.83
16.33
16.88
17.53
18.22
5.13
5.37
5.97
7.09
8.57
16.42
17.00
17.50
18.09
—
5.74
6.04
6.57
7.58
—
—
—
—
—
—
—
—
—
—
—
40RUA*30
40RUS*30
4250
4960
5660
6370
7080
14.43
15.04
15.81
16.66
17.61
3.88
4.92
6.34
8.04
10.06
14.98
15.71
16.47
17.27
18.16
4.36
5.32
6.81
8.57
10.64
15.84
16.33
17.10
17.88
—
4.96
5.74
7.28
9.10
—
16.48
16.93
17.69
—
—
5.50
6.20
7.74
—
—
17.16
17.51
18.26
—
—
6.21
6.70
8.21
—
—
17.96
18.09
—
—
—
7.26
7.29
—
—
—
350
400
450
See Legend and Notes on page 34.
31
500
550
600
Table 10C — 40RU High-Capacity Fan Performance Data —
0.0-2.4 in. wg External Static Pressure — English
EXTERNAL STATIC PRESSURE (in. wg)
UNIT
AIRFLOW
(Cfm)
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
Rpm
Bhp
40RUA*25
40RUS*25
6,000
7,000
8,000
9,000
10,000
542
620
700
781
862
1.29
1.99
2.92
4.10
5.56
577
652
728
806
885
1042
2.15
3.10
4.30
5.79
646
711
781
854
929
1.72
2.48
3.46
4.71
6.24
716
771
833
900
971
2.09
2.85
3.85
5.13
6.70
785
831
885
946
1012
2.51
3.28
4.29
5.58
7.18
849
890
938
993
1054
2.95
3.76
4.78
6.08
7.69
907
947
990
1039
1096
3.40
4.27
5.32
6.62
8.24
40RUA*28
40RUS*28
7,500
8,750
10,000
11,250
12,500
476
545
615
685
756
1.39
2.14
3.12
4.37
5.92
510
574
641
709
778
1.58
2.35
3.36
4.64
6.22
579
633
692
754
819
1.99
2.81
3.87
5.20
6.83
644
691
743
800
860
2.40
3.29
4.41
5.79
7.47
701
747
794
845
901
2.81
3.77
4.96
6.40
8.14
752
797
843
891
942
3.29
4.25
5.51
7.02
8.83
804
842
888
935
983
3.96
4.76
6.05
7.64
9.52
40RUA*30
40RUS*30
9,000
10,500
12,000
13,500
15,000
539
620
701
783
865
2.18
3.37
4.94
6.95
9.45
569
646
724
804
884
2.39
3.62
5.22
7.27
9.81
626
695
769
844
921
2.85
4.13
5.80
7.91
10.52
683
744
811
883
956
3.34
4.68
6.40
8.57
11.24
739
793
854
920
991
3.83
5.25
7.04
9.26
11.98
791
842
897
958
1025
4.32
5.83
7.69
9.97
12.75
837
888
940
996
1059
4.82
6.41
8.36
10.71
13.54
0.0
0.2
0.4
0.6
0.8
1.0
1.2
See Legend and Notes on page 34.
Table 10C — 40RU High-Capacity Fan Performance Data —
0.0-2.4 in. wg External Static Pressure — English (cont)
EXTERNAL STATIC PRESSURE (in. wg)
UNIT
AIRFLOW
(Cfm)
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
40RUS*25
6,000
7,000
8,000
9,000
10,000
961
1000
1041
1086
1138
3.86
4.79
5.88
7.21
8.83
1011
1050
1090
1133
1180
4.31
5.32
6.47
7.82
9.46
1058
1097
1137
1178
—
4.77
5.85
7.07
8.47
—
1104
1142
1181
—
—
5.24
6.38
7.67
—
—
1147
1184
—
—
—
5.71
6.91
—
—
—
—
—
—
—
—
—
—
—
—
—
40RUA*28
40RUS*28
7,500
8,750
10,000
11,250
12,500
874
886
930
976
1023
5.33
5.36
6.60
8.25
10.20
897
930
969
1014
1061
5.91
6.13
7.20
8.86
10.88
940
982
1007
1051
1097
6.80
7.32
7.89
9.49
11.56
990
1020
1045
1086
—
7.50
8.10
8.71
10.17
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
40RUA*30
40RUS*30
9,000
10,500
12,000
13,500
15,000
881
930
981
1035
1093
5.37
6.97
9.02
11.45
14.35
923
970
1021
1072
—
6.03
7.55
9.67
12.20
—
967
1008
1058
—
—
6.89
8.17
10.32
—
—
1020
1045
1094
—
—
8.25
8.86
10.97
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
See Legend and Notes on page 34.
32
Table 10D — 40RU High-Capacity Fan Performance Data —
0-600 kPa External Static Pressure — SI
EXTERNAL STATIC PRESSURE (kPa)
UNIT
AIRFLOW
(L/s)
0
50
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
40RUS*25
2830
3330
3780
4250
4720
9.03
10.34
11.67
13.01
14.36
0.96
1.48
2.17
3.05
4.15
9.62
10.86
12.14
13.44
14.75
1.06
1.60
2.31
3.21
4.32
10.77
11.85
13.02
14.23
15.48
1.29
1.85
2.58
3.51
4.66
11.94
12.84
13.88
15.00
16.18
1.56
2.12
2.87
3.82
4.99
13.08
13.85
14.75
15.77
16.87
1087
2.45
3.20
4.16
5.35
14.15
14.84
15.63
16.54
17.56
2.20
2.80
3.56
4.53
5.73
15.12
15.78
16.50
17.32
18.26
2.54
3.18
3.96
4.94
6.14
40RUA*28
40RUS*28
3540
4130
4720
5310
5900
7.94
9.08
10.24
11.42
12.60
1.04
1.59
2.33
3.26
4.42
8.51
9.57
10.68
11.81
12.96
1.18
1.75
2.51
3.46
4.64
9.65
10.55
11.53
12.57
13.65
1.48
2.10
2.88
3.88
5.09
10.73
11.52
12.39
13.33
14.33
1.79
2.46
3.29
4.32
5.57
11.68
12.45
13.24
14.09
15.01
2.10
2.81
3.70
4.77
6.07
12.53
13.28
14.05
14.85
15.40
2.46
3.17
4.11
5.24
6.58
13.40
14.04
14.80
15.58
16.38
2.95
3.55
4.51
570
7.10
40RUA*30
40RUS*30
4250
4960
5660
6370
7080
8.99
10.33
11.68
13.04
14.42
1.62
2.51
3.68
5.18
7.05
9.49
10.77
12.07
13.40
14.74
1.78
2.70
3.90
5.42
7.31
10.44
11.59
12.81
14.07
15.36
2.12
3.08
4.33
5.90
7.84
11.39
12.40
13.52
14.71
15.94
2.49
3.49
4.77
6.39
8.38
12.32
13.22
14.23
15.34
16.51
2.86
3.92
5.25
6.90
8.93
13.18
14.03
14.95
15.97
17.08
3.22
4.35
5.74
7.44
9.51
13.95
14.79
15.66
16.61
17.65
3.59
4.78
6.23
7.98
10.10
See Legend and Notes on page 34.
Table 10D — 40RU High-Capacity Fan Performance Data —
0-600 kPa External Static Pressure — SI (cont)
EXTERNAL STATIC PRESSURE (kPa)
UNIT
AIRFLOW
(L/s)
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
40RUS*25
2830
3300
3780
4250
4720
16.01
16.67
17.35
18.11
18.96
2.88
3.57
4.39
5.37
6.58
16.85
17.50
18.17
18.88
19.67
3.22
3.96
4.82
5.83
7.05
17.64
18.28
18.95
19.63
—
3.56
4.36
5.27
6.31
—
18.39
19.03
19.68
—
—
3.91
4.75
5.72
—
—
19.12
19.73
—
—
—
4.26
5.15
—
—
—
—
—
—
—
—
—
—
—
—
—
40RUA*28
40RUS*28
3540
4130
4720
5310
5900
14.57
14.76
15.49
16.26
17.04
3.97
3.99
4.92
6.15
7.61
14.95
15.51
16.15
16.91
17.68
4.41
4.57
5.37
6.61
8.11
15.67
16.36
16.78
17.51
18.28
5.07
5.46
5.88
7.08
8.62
16.50
17.00
17.42
18.10
—
5.59
6.04
6.50
7.58
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
40RUA*30
40RUS*30
4250
4960
5660
6370
7080
14.68
15.51
16.35
17.24
18.22
4.00
5.20
6.72
8.54
10.70
15.38
16.17
17.01
17.87
—
4.49
5.63
7.21
9.10
—
16.12
16.80
17.64
—
—
5.14
6.09
7.69
—
—
17.00
17.41
18.23
—
—
6.15
6.61
8.18
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
See Legend and Notes on page 34.
33
Legend and Notes for Tables 10A and 10C
Bhp
ESP
—
—
FACTORY-SUPPLIED PRESSURE DROP — ENGLISH
LEGEND
Brake Horsepower Input to Fan
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.
UNIT
AIRFLOW
(Cfm)
PRESSURE DROP
(in. wg)
40RUA*25
40RUS*25
6,000
8,000
10,000
0.12
0.19
0.26
40RUA*28
40RUS*28
7,500
10,000
12,500
0.15
0.22
0.30
40RUA*30
40RUS*30
9,000
12,000
15,000
0.19
0.29
0.40
Legend and Notes for Tables 10B and 10D
LEGEND
ESP — External Static Pressure
FACTORY-SUPPLIED PRESSURE DROP — SI
NOTES:
1. Maximum allowable fan speed for size 25 units is 20 r/s.
Maximum allowable fan speed for size 28 and 30 units is 18.3 r/s.
2. Fan performance is based on deductions for wet coil, clean
51-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.
UNIT
AIRFLOW
(L/s)
PRESSURE DROP
(Pa)
40RUA*25
40RUS*25
2900
3800
4700
32
47
64
40RUA*28
40RUS*28
3500
4700
5900
36
55
76
40RUA*30
40RUS*30
4250
5650
7050
47
71
98
Copyright 2009 Carrier Corp • 7310 W. Morris St. • Indianapolis, IN 46231
Printed in Mexico
Edition Date: 09/09
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
34
Catalog No: 40RU-03SI
Replaces: New
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) AND INDOOR FAN CONTROL WIRING
CONNECTIONS MADE AND 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?
ARE PROPER AIR FILTERS IN PLACE?
(Y/N) _____
(Y/N) _____
HAVE FAN AND MOTOR PULLEYS BEEN CHECKED FOR PROPER ALIGNMENT?
DO THE FAN BELTS HAVE PROPER TENSION?
(Y/N) ______
(Y/N) _____
PIPING
40RUA
HAS FOAM SHIPPING BLOCK BEEN REMOVED FROM THE TXV (Thermostatic Expansion Valve)?
ARE LIQUID LINE SOLENOID VALVES LOCATED AT THE INDOOR UNIT COILS AS REQUIRED?
(Y/N) ______
(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)
ARE THE COMPRESSOR OIL SIGHT GLASSES SHOWING CORRECT LEVELS?
(Y/N) ____
(Y/N) _____
40RUS
HAS AIR BEEN BLED FROM SYSTEM?
(Y/N) ___________________________________________
HAVE LEAK CHECKS BEEN MADE AT COMPRESSORS, CHILLERS, VALVES, AND INDOOR COILS?
LOCATE, REPAIR, AND REPORT ANY LEAKS.
(Y/N)
_______________________________________________________________
CL-1
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
DISCHARGE LINE TEMP
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 1/8 to 1/3 FULL?
(Y/N) ______
NOTES:
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
______________________________________________________________________________________________________
Copyright 2009 Carrier Corp • 7310 W. Morris St. • Indianapolis, IN 46231
Printed in Mexico
Catalog No: 40RU-03SI
Edition Date: 09/09
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Pg CL-2
Replaces: New
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - CUT ALONG DOTTED LINE
CUT ALONG DOTTED LINE
CHECK VOLTAGE IMBALANCE