Bryant 701A User Manual

Installation, Start-Up

701A

and Operating Instructions

3-PHASE SINGLE PACKAGED
ELECTRIC COOLING UNITS

NOTE: Read the entire instruction manual before starting the
installation.

This symbol → indicates a change since the last issue.

TABLE OF CONTENTS

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

INTRODUCTION ..........................................................................2

RECEIVING AND INSTALLATION ..........................................2

Check Equipment......................................................................2

IDENTIFY UNIT ................................................................2

INSPECT SHIPMENT ........................................................2

Provide Unit Support ................................................................2

ROOF CURB.......................................................................2

SLAB MOUNT ...................................................................2

GROUND MOUNT ............................................................2

Provide Clearances....................................................................2

Field Fabricate Ductwork .........................................................2

Rig and Place Unit....................................................................2

INSPECTION ......................................................................2

INSTALLATION ................................................................6

Connect Condensate Drain .......................................................6

Install Duct Connections ..........................................................6

CONFIGURING UNITS FOR DOWNFLOW (VERTI-

CAL) DISCHARGE ............................................................6

Install Electrical Connection ....................................................9

HIGH-VOLTAGE CONNECTIONS..................................9

SPECIAL PROCEDURES FOR 208-V OPERATION ...10

CONTROL VOLTAGE CONNECTIONS.......................10

STANDARD CONNECTION ..........................................10

TRANSFORMER PROTECTION....................................12

PRE-START-UP ..........................................................................12

START-UP ...................................................................................12

CHECK FOR REFRIGERANT LEAKS..........................12

START UP COOLING SECTION AND MAKE ADJUST-

MENTS..............................................................................13

CHECKING COOLING CONTROL OPERATION .......13

CHECKING AND ADJUSTING REFRIGERANT

CHARGE ...........................................................................13

INDOOR AIRFLOW AND AIRFLOW ADJUST-

MENTS..............................................................................13

FOR 208/230V ..................................................................13

FOR 460-V GE MOTORS................................................16

COOLING SEQUENCE OF OPERATION.....................16

MAINTENANCE.........................................................................16

AIR FILTER......................................................................16

EVAPORATOR BLOWER AND MOTOR.....................16

CONDENSER COIL, EVAPORATOR COIL, AND CON-

DENSATE DRAIN PAN ..................................................17

CONDENSER FAN ..........................................................18

ELECTRICAL CONTROLS AND WIRING ..................21

REFRIGERANT CIRCUIT...............................................21

EVAPORATOR AIRFLOW .............................................21

METERING DEVICE — ACUTROL DEVICE .............21

LIQUID LINE STRAINER ..............................................21

Troubleshooting............................................................................21

Start-Up Checklist ........................................................................21

702A

Cancels: New II 701A-30-1

2-06

C99062

Fig. 1—Unit 701A and 702A

NOTE TO INSTALLER — Before the installation, READ THESE
INSTRUCTIONS CAREFULLY AND COMPLETELY. Also,
make sure the User’s Manual and Replacement Guide are left with
the unit after installation.

SAFETY CONSIDERATIONS

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

Untrained personnel can perform basic maintenance functions of
cleaning coils and filters. All other operations should be performed
by trained service personnel. When working on air-conditioning
equipment, observe precautions in the literature, tags, and labels
attached to the unit, and other safety precautions that may apply.

Follow all safety codes. Wear safety glasses and work gloves. Use
quenching cloth for unbrazing operations. Have fire extinguisher
available for all brazing operations. Consult a qualified installer or
service agency for information or assistance. The qualified in­staller or agency must use only factory-authorized kits or acces­sories when modifying this product.

WARNING: Before performing service or maintenance
operations on system, turn off power to unit. Turn off
accessory heater power switch, if applicable. Electrical
shock can cause personal injury.

Recognize safety information. This is the safety-alert symbol .
When you see this symbol in instructions or manuals, be alert to
the potential for personal injury.

—1—

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 a hazard
which could result in personal injury or death. CAUTION is used
to identify unsafe practices which would 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.

These instructions cover minimum requirements and conform to
existing national standards and safety codes. In some instances,
these instructions exceed certain local codes and ordinances,
especially those that may not have kept up with changing residen­tial construction practices. We require these instructions as a
minimum for a safe installation.

INTRODUCTION

The 701A and 702A units (see Fig. 1) are fully self-contained, and
designed for outdoor installation. See Figs. 2 and 3 for unit
dimensions. All unit sizes have discharge openings for both
horizontal and downflow configurations, and are factory shipped
with all downflow duct openings covered . Units may be installed
either on a rooftop, ground-level cement slab, or directly on the
ground if local codes permit. (See Fig. 4 for roof curb dimensions.)

RECEIVING AND INSTALLATION

I. CHECK EQUIPMENT

A. IDENTIFY UNIT

The unit model number and serial number are stamped on the unit
identification plate. Check this information against shipping pa­pers.

B. INSPECT SHIPMENT

Inspect for shipping damage while unit is still on shipping pallet.
If unit appears to be damaged or is torn loose from its anchorage,
have it examined by transportation inspectors before removal.
Forward claim papers directly to transportation company. Manu­facturer is not responsible for any damage incurred in transit.
Check all items against shipping list. Immediately notify the
nearest Bryant Air Conditioning office if any item is missing. To
prevent loss or damage, leave all parts in original packages until
installation.

II. PROVIDE UNIT SUPPORT

A. ROOF CURB

Install accessory roof curb in accordance with instructions shipped
with curb (See Fig. 4). Install insulation, cant strips, roofing, and
flashing. Ductwork must be attached to curb.

IMPORTANT: The gasketing of the unit to the roof curb is
critical for a watertight seal. Install gasketing material supplied
with the roof curb. Improperly applied gasketing also can result in
air leaks and poor unit performance.

Curb should be level to within 1/4 in. (see Fig. 5A). This is
necessary for unit drain to function properly. Refer to accessory
roof curb installation instructions for additional information as
required.

B. SLAB MOUNT

Place the unit on a solid, level concrete pad that is a minimum of
4 in. thick with 2 in. above grade (see Fig. 5B). The slab should
extend approximately 2 in. beyond the casing on all 4 sides of the
unit. Do not secure the unit to the slab except when required by
local codes.

C. GROUND MOUNT

The unit may be installed either on a slab or placed directly on the
ground if local codes permit. Place the unit on level ground
prepared with gravel for condensate discharge.

III. PROVIDE CLEARANCES

The required minimum service clearances are shown in Fig. 2 & 3.
Adequate ventilation and outdoor air must be provided. The
outdoor fan draws air through the outdoor coil and discharges it
through the top fan grille. Be sure that the fan discharge does not
recirculate to the outdoor coil. Do not locate the unit in either a
corner or under an overhead obstruction. The minimum clearance
under a partial overhang (such as a normal house overhang) is 36
in. above the unit top. The maximum horizontal extension of a
partial overhang must not exceed 48 in. For extended overhangs,
provide a minimum clearance of 48 in.

IMPORTANT: Do not restrict outdoor airflow. An air restriction
at either the outdoor-air inlet or the fan discharge may be
detrimental to compressor life.

Do not place the unit where water, ice, or snow from an overhang
or roof will damage or flood the unit. Do not install the unit on
carpeting or other combustible materials. Slab-mounted units
should be at least 4 in. above the highest expected water and runoff
levels. Do not use unit if it has been under water.

IV. FIELD FABRICATE DUCTWORK

Secure all ducts to roof curb and building structure on vertical
discharge units. Do not connect ductwork to unit. For horizontal
applications, unit is provided with flanges on the horizontal
openings. All ductwork should be secured to the flanges. Insulate
and weatherproof all external ductwork, joints, and roof openings
with counter flashing and mastic in accordance with applicable
codes.

Ducts passing through an unconditioned space must be insulated
and covered with a vapor barrier. If a plenum return is used on a
vertical unit, the return should be ducted through the roof deck to
comply with applicable fire codes. A minimum clearance is not
required around ductwork. Cabinet return-air static shall not
exceed -.25 in. wg.

V. RIG AND PLACE UNIT

Rigging and handling of this equipment can be hazardous for many
reasons due to the installation location (roofs, elevated structures,
etc.)

Only trained, qualified crane operators and ground support staff
should handle and install this equipment.

When working with this equipment, observe precautions in the
literature, on tags, stickers, and labels attached to the equipment,
and any other safety precautions that might apply.

Follow all applicable safety codes. Wear safety shoes and work
gloves.

WARNING: Never stand beneath rigged units or lift
over people.

WARNING: Never exceed 200 lbs. per bracket lifting
force.

WARNING: Accessory lifting kit is only to be used with
Small Packaged units which have a composite base pan
with molded rigging holds.

A. INSPECTION

Prior to initial use, and at monthly intervals, all rigging brackets
and straps should be visually inspected for any damage, evidence
of wear, structural deformation, or cracks. Particular attention
should be paid to excessive wear at hoist hooking points and load
support areas. Brackets or straps showing any kind of wear in these
areas must not be used and should be discarded.

—2—

REQUIRED CLEARANCE TO COMBUSTIBLE MATL.

TOP OF UNIT...................................................................................14.00 [355.6]

DUCT SIDE OF UNIT.........................................................................2.00 [50.8]

SIDE OPPOSITE DUCTS ................................................................14.00 [355.6]

BOTTOM OF UNIT.............................................................................0.50 [12.7]

ELECTRIC HEAT PANEL .................................................................36.00 [914.4]

NEC. REQUIRED CLEARANCES.

BETWEEN UNITS, POWER ENTRY SIDE ....................................42.00 [1066.8]

UNIT AND UNGROUNDED SURFACES, POWER ENTRY SIDE .36.00 [914.0]
UNIT AND BLOCK OR CONCRETE WALLS AND OTHER

GROUNDED SURFACES, POWER ENTRY SIDE.........................42.00 [1066.8]

UNIT ELECTRICAL CHARACTERISTICS

INCHES [mm]

INCHES [mm]

UNIT WEIGHT

lb. kg X Y Z

REQUIRED CLEARANCE FOR OPERATION AND SERVICING

EVAP. COIL ACCESS SIDE............................................................36.00 [914.0]

POWER ENTRY SIDE....................................................................42.00 [1066.8]

(EXCEPT FOR NEC REQUIREMENTS)

UNIT TOP.......................................................................................48.00 [1219.2]

SIDE OPPOSITE DUCTS ..............................................................36.00 [914.0]

DUCT PANEL .................................................................................12.00 [304.8] *

*MINIMUM DISTANCES: IF UNIT IS PLACED LESS THAN 304.8 [12.00] FROM
WALL SYSTEM, THEN SYSTEM PERFORMANCE MAYBE COMPROMISE.

UNIT HEIGHT

IN. (MM)

CENTER OF GRAVITY

IN. (MM)

INCHES [mm]

”A”

701A030 208/230-3-60 258 117.0 35.02 (889.5) 19.0 (482.6) 14.0 (355.6) 15.0 (381.0)
701A036 208/230-3-60, 460-3-60 268 121.6 37.02 (940.3) 20.0 (508.0) 14.0 (355.6) 13.0 (330.2)
701A042 208/230-3-60, 460-3-60 294 133.3 35.02 (889.5) 19.0 (482.6) 14.0 (355.6) 13.0 (330.2)
702A030 208/230-3-60 291 132.0 39.02 (991.1) 19.5 (495.3) 15.5 (393.7) 17.6 (447.0)
702A036 208/230-3-60, 460-3-60 299 135.6 35.02 (889.5) 19.5 (495.3) 15.25 (387.4) 16.5 (419.1)

Fig. 2—701A030-042 and 702A030, 036 Unit Dimensions

—3—

C99007

REQUIRED CLEARANCE TO COMBUSTIBLE MATL.

TOP OF UNIT...................................................................................14.00 [355.6]

DUCT SIDE OF UNIT.........................................................................2.00 [50.8]

SIDE OPPOSITE DUCTS ................................................................14.00 [355.6]

BOTTOM OF UNIT.............................................................................0.50 [12.7]

ELECTRIC HEAT PANEL .................................................................36.00 [914.4]

NEC. REQUIRED CLEARANCES.

BETWEEN UNITS, POWER ENTRY SIDE ....................................42.00 [1066.8]

UNIT AND UNGROUNDED SURFACES, POWER ENTRY SIDE .36.00 [914.0]
UNIT AND BLOCK OR CONCRETE WALLS AND OTHER

GROUNDED SURFACES, POWER ENTRY SIDE.........................42.00 [1066.8]

UNIT ELECTRICAL CHARACTERISTICS

INCHES [mm]

INCHES [mm]

UNIT WEIGHT

lb. kg X Y Z

REQUIRED CLEARANCE FOR OPERATION AND SERVICING

EVAP. COIL ACCESS SIDE............................................................36.00 [914.0]

POWER ENTRY SIDE....................................................................36.00 [914.0]

(EXCEPT FOR NEC REQUIREMENTS)

UNIT TOP.......................................................................................48.00 [1219.2]

SIDE OPPOSITE DUCTS ..............................................................36.00 [914.0]

DUCT PANEL .................................................................................12.00 [304.8] *

*MINIMUM DISTANCES: IF UNIT IS PLACED LESS THAN 304.8 [12.00] FROM
WALL SYSTEM, THEN SYSTEM PERFORMANCE MAYBE COMPROMISE.

UNIT HEIGHT

IN. (MM)

CENTER OF GRAVITY

IN. (MM)

INCHES [mm]

”A”

701A048 208/230-3-60, 460-3-60 324 145 38.98 (990.2) 20.0 (508.0) 17.0 (432.0) 17.0 (432.0)
701A060 208/230-3-60, 460-3-60 389 176 38.98 (990.2) 19.0 (482.6) 16.0 (406.0) 17.0 (432.0)
702A042 208/230-3-60, 460-3-60 321 146 38.98 (990.2) 20.5 (520.7) 16.75 (425.5) 16.6 (421.6)
702A048 208/230-3-60, 460-3-60 326 148 38.98 (990.2) 19.5 (495.3) 17.6 (447.6) 18.0 (457.2)
702A060 208/230-3-60, 460-3-60 399 181 42.98 (1091.1) 20.5 (520.7) 16.2 (412.8) 17.6 (447.0)

Fig. 3—701A048–060 and 702A042–060 Unit Dimensions

—4—

C99006

HVAC unit

Scre w

(NO TE A)

*Gask eting

outer flange

Flashing field

supplied

Roofing material

field supplied

Cant str ip

field supplied

base

Gask eting

inner flange*

Wood nailer*

Roofcurb*

Insulation (field

supplied)

Duct wo rk

field supplied

HVAC unit

Scre w

(NOTE A)

*Gask eting

outer flange

Flashing field

supplied

Roofing material

field supplied

Cant str ip

field supplied

base

Gask eting

inner flange*

Duct wo rk

field supplied

Wood nailer*

Roofcurb*

Insulation (field

supplied)

Roof

*Provided with roofcurb

Roof Curb for Small Cabinet

Note A: When unit mounting scre w is used,

Return opening

(B X C)

701A030-042 702A030-036

701A048-060 702A042-060

NOTES:

1. Dimensions in ( ) are in millimeters.

2. Roof curb is made of 16-gage steel.

3. Table lists only the dimensions per part number that have changed

4. Insulated panels: 1-in. thick fiberglass 1 lb. density.

retainer bra cke t must also be used.

Supply opening
(B x C)

B Typ.

5

/16"

44

Insulated
deck pan

C Typ .

D

Long

Support

UNIT SIZE ODS CATALOG NUMBER

CPRFCURB006A00 8 (203) 11(279) 16-1/2 (419) 28-3/4 (730)
CPRFCURB007A00 14 (356) 11(279) 16-1/2 (419) 28-3/4 (730)
CPRFCURB008A00 8 (203) 16-3/16 (411) 17-3/8 (441) 40-1/4 (1022)
CPRFCURB009A00 14 (356) 16-3/16 (411) 17-3/8 (441) 40-1/4 (1022)

Fig. 4A—Roof Curb Dimensions

Short

Support

Roof

*Provided with roofcurb

Roof Curb for Large Cabinet

Note A: When unit mounting scre w is used,

R/A

A

retainer bra cket must also be used.

S/A

Gask et around

duct

A

IN. (MM)

Insulated
deck pan

B

IN. (MM)

Gask et around

outer edge

C

IN. (MM)

C00076

D

IN. (MM)

—5—

12

y

43

CORNER #

1 59 62 76 69 84 84 85 71 78 85
2 48 50 50 45 54 60 60 55 56 66
3 56 58 71 88 106 61 64 85 80 108
4 95 98 97 122 145 86 90 110 112 140

TOTAL WEIGHT 258 268 294 324 389 291 299 321 326 399

A

B

Fig. 5A—Unit Leveling Tolerances

B. INSTALLATION

1. Position the lifting bracket assembly around the base of the
unit. Leave the top shipping skid on the unit to act as a
spreader bar. Be sure the strap does not twist.

2. Place each of the four (4) metal lifting brackets into the
rigging holds in the composite pan.

3. Tighten the ratchet strap unit tight. Lifting brackets should
be secure in the rigging holds.

4. Attach the clevis or hook of sufficient strength to hole in the
lifting bracket (see Fig. 6).

5. Attach safety straps directly to the field supplied rigging
straps or clevis clip. Do not attach the safety straps to the
lifting brackets.

6. Use the top of the unit as a spreader bar to prevent the
rigging straps from damaging the unit. If the wood top is not
available, use a spreader bar of sufficient length to not
damage the unit.

WARNING: Lifting point should be directly over the
center of gravity for the unit.

VI. CONNECT CONDENSATE DRAIN

NOTE: When installing condensate drain connection be sure to

comply with local codes and restrictions.

Models 701A and 702A dispose of condensate water through a 3/4
in. NPT fitting which exits through the base on the evaporator coil
access side. See Fig. 2 & 3 for location.

030 036 042 048 060 030 036 042 048 060

C

MAXIMUM ALLOWABLE

A-B B-C A-C

1/4 1/4 1/4

701A 702A

Fig. 4B—701A and 702A Unit Corner Weights

DIFFERENCE (in.)

C99065

x

Condensate water can be drained directly onto the roof in rooftop
installations (where permitted) or onto a gravel apron in ground­level installations. Install a field-supplied condensate trap at end of
condensate connection to ensure proper drainage. Make sure that
the outlet of the trap is at least 1 in. lower than the drainpan
condensate connection to prevent the pan from overflowing (see
Fig. 7). When using a gravel apron, make sure it slopes away from
the unit.

Connect a drain tube using a minimum of 3/4 -in. PVC or 3/4 -in.
copper pipe (all field-supplied) at the outlet end of the 2-in. trap.
Do not undersize the tube. Pitch the drain tube downward at a
slope of at least 1-in. for every 10 ft. of horizontal run. Be sure to
check the drain tube for leaks. Prime trap at the beginning of the
cooling season start-up.

VII. INSTALL DUCT CONNECTIONS

The unit has duct flanges on the supply- and return-air openings on
the side and bottom of the unit. For downshot applications the
ductwork can be connected to the roof curb. See Fig. 2&3for
connection sizes and locations.

IMPORTANT: Use flexible connectors between ductwork and
unit to prevent transmission of vibration. Use suitable gaskets to
ensure weathertight and airtight seal. When electric heat is
installed, use fire proof canvas (or similar heat resistant material)
connector between ductwork and unit discharge connection. If
flexible duct is used, insert a sheet metal sleeve inside duct. Heat
resistant duct connector (or sheet metal sleeve) must extend 24-in.
from the unit discharge connection flange into the ductwork.

A. CONFIGURING UNITS FOR DOWNFLOW (VERTI­CAL) DISCHARGE

WARNING: Before performing service or maintenance

operations on the system, turn off main power to unit and
install lockout tag or electrical shock could result.

1. Open all electrical disconnects and install lockout tag before
starting any service work.

2. Remove return duct cover located on duct panel by breaking
four (4) connecting tabs with screwdriver and a hammer
(Fig. 8 & 9).

3. To remove supply duct cover, break front and right side
connecting tabs with a screwdriver and a hammer. Push
louver down to break rear and left side tabs (Fig. 8 & 9).

C00071

—6—

OPTIONAL

RETURN

AIR

OPENING

2"

OPTIONAL

SUPPLY

AIR

OPENING

EVAP. COIL COND. COIL

Fig. 5B—Slab Mounting Detail

DETAIL A

SIZE

030 280 127.0 19 482.6 14 355.6
036 290 131.5 20 508.0 14 355.6
042 316 143.3 19 482.6 14 355.6
048 346 156.9 20 508 17 431.8
060 411 186.4 19 482.6 16 406.4

030 313 142.5 19.5 495.3 15.50 393.7
036 321 145.6 19.5 495.3 15.25 387.4
042 343 155.6 20.5 520.7 16.75 425.5
048 348 157.9 19.5 495.3 17.62 447.6
060 421 191.0 20.5 520.7 16.25 412.8

4. If unit ductwork is to be attached to vertical opening flanges
on the unit composite base (jackstand applications only), do
so at this time. Collect ALL screws that were removed. Do
not leave screws on rooftop as permanent damage to the
roof may occur.

5. It is recommended that the unit base insulation around the
perimeter of the vertical return-air opening be secured to the

MAXIMUM WEIGHT A B

lb. kg in. mm. in. mm.

UNIT 701A

UNIT 702A

Fig. 6—Suggested Rigging

NOTE: The design and installation of the duct system must be in

accordance with the standards of the NFPA for installation of
nonresidence-type air conditioning and ventilating systems, NFPA
90A or residence-type, NFPA 90B; and/or local codes and
ordinances.
Adhere to the following criteria when selecting, sizing, and
installing the duct system:

unit base with aluminum tape. Applicable local codes may
require aluminum tape to prevent exposed fiberglass.

6. Cover both horizontal duct openings with the duct covers
from the accessory duct cover kit. Ensure opening is air-and
watertight.

7. After completing unit conversion, perform all safety checks
and power up unit.

8. Units are shipped for side shot installation.

9. Select and size ductwork, supply-air registers, and return-air
grilles according to American Society of Heating, Refrig­eration and Air Conditioning Engineers (ASHRAE) recom­mendations.

C99096

A05179

—7—

TABLE 1—PHYSICAL DATA—UNIT 701A

UNIT SIZE 030 036 042 048 060

NOMINAL CAPACITY (ton) 2-1/2 3 3-1/2 4 5

OPERATING WEIGHT (lb.) 258 268 294 324 389

COMPRESSOR Reciprocating Scroll Reciprocating

REFRIGERANT (R-22)

Quantity (lb.)

REFRIGERANT METERING DEVICE

* Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 ft./min.
for throwaway type or 450 ft./min. for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 in. wg.

Orifice ID (in.)

CONDENSER COIL

Rows...Fins/in.

Face Area (sq. ft.)

CONDENSER FAN

Nominal Cfm

Diameter

Motor Hp (Rpm)

EVAPORATOR COIL

Rows...Fins/in.

Face Area (sq. ft.)

EVAPORATOR BLOWER

Nominal Airflow (Cfm)

Size (in.)

Motor Hp (RPM)

RETURN-AIR FILTERS (in.)*

Throwaway

3.65 4.4 6.4 5.1 7.4

AccuRater®

.034 .032 .034 .032 .030

1...17

9.1

2400

22

1/8 (825)

2...15

3.7

1000

10x10

1/4 (1075)

20x20 20x24 20x24 24x30 24x30

1...17

10.9

3000

18

1/4 (1100)

3...15

3.06

1200

11x10

1/2 (1075)

1...17

9.1

3000

22

1/4 (1100)

4...15

3.06

1400

11x10

3/4 (1075)

1...17

12.3

3600

22

1/4 (1100)

3...15

4.7

1600

11x10

3/4 (1075)

1/4 (1100)

1.0 (1100)

2...17

12.3

3600

22

4...15

4.7

2000

11x10

TABLE 2—PHYSICAL DATA—UNIT 702A

UNIT SIZE 030 036 042 048 060

NOMINAL CAPACITY (ton) 2-1/2 3 3-1/2 4 5

OPERATING WEIGHT (lb.) 291 299 321 326 399

COMPRESSOR Scroll

REFRIGERANT (R-22)

Quantity (lb.)

REFRIGERANT METERING DEVICE

*

Required filter sizes shown are based on the larger of the ARI (Air Conditioning and Refrigeration Institute) rated cooling airflow or the heating airflow velocity of 300 ft./min.

for throwaway type or 450 ft./min. for high-capacity type. Air filter pressure drop for non-standard filters must not exceed 0.08 in. wg.

Orifice ID (in.)

CONDENSER COIL

Rows...Fins/in.

Face Area (sq. ft.)

CONDENSER FAN

Nominal Cfm

Diameter (in.)

Motor Hp (Rpm)

EVAPORATOR COIL

Rows...Fins/in.

Face Area (sq. ft.)

EVAPORATOR BLOWER

Nominal Airflow (Cfm)

Size (in.)

Motor Hp (RPM)

RETURN-AIR FILTERS (in.)*

Throwaway

10. Use flexible transition between rigid ductwork and unit to
prevent transmission of vibration. The transition may be
screwed or bolted to duct flanges. Use suitable gaskets to
ensure weathertight and airtight seal.

11. All units must have field-supplied filters or accessory filter

4.4 5.2 7.6 8.3 8.1

AccuRater®

.030 .032 .034 .034 .032

1...17

12.7

2350

22

1/8 (825)

3...15

3.1

1000

10x10

1/4 (1075)

20x20 20x24 20x30 24x30 24x30

2...17

9.1

2350

22

1/8 (825)

3...15

3.7

1200

11x10

1/2 (1075)

2...17

9.1

3300

22

1/4 (1100)

3...15

4.7

1400

11x10

3/4 (1075)

2...17

12.3

3300

22

1/4 (1100)

4...15

4.7

1600

11x10

3/4 (1075)

1/4 (1100)

1.0 (1040)

of Sheet Metal and Air Conditioning Contractors National
Association (SMACNA) and Air Conditioning Contractors
of America (ACCA) minimum installation standards for
heating and air conditioning systems. Secure all ducts to
building structure.

2...17

16.4

3300

22

4...15

4.7

1750

11x10

rack installed in the return-air side of the unit. Recom­mended sizes for filters are shown in Tables 1 and 2.

12. Size all ductwork for maximum required airflow (either
heating or cooling) for unit being installed. Avoid abrupt

14. Flash, weatherproof, and vibration-isolate all openings in
building structure in accordance with local codes and good
building practices.

duct size increases or decreases or performance may be
affected.

13. Adequately insulate and weatherproof all ductwork located
outdoors. Insulate ducts passing through unconditioned
space, and use vapor barrier in accordance with latest issue

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