Nordyne 460/575 Volt Single Package Convertible Air Conditioner, Air Conditioner User Manual And Installation Instructions

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460/575 Volt Single Package Convertible Air Conditioner

User's Manual and Installation Instructions

These instructions are primarily intended to assist qualified individuals experienced in the proper installation of heating and/or air conditioning appliances. Some local codes require licensed installation/service personnel for this type equipment. All installations must be in accordance with these instructions and with all applicable national and local codes and standards.

Read these instructions thoroughly before starting the installation. Follow all precautions and warnings contained within these instructions and on the unit.

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OWNER INFORMATION

make sure it’s working right, clean or change filters and make any needed adjustments.

OPERATING INSTRUCTIONS

To Turn On Air Conditioner

If you have a heating/cooling thermostat:

1. Set the system switch to “Cool”.

2. Set the thermostat at the temperature level you desire.

3. Turn the power on. Your air conditioner should start as soon as room temperature rises above the setting on the thermostat.

If you have one thermostat for heating and another for cooling, they must be inter-

locked to prevent simultaneous operation:

1. Turn the heating thermostat to its lowest possible setting.

2. If the cooling thermostat has an “On/Off” switch, turn it “On.”

3. Set the cooling thermostat to the desired temperature.

4. Turn the power on. Your air conditioner should start when room temperature exceeds the thermostat setting.

To Shut Off Air Conditioner

If you have a heating/cooling thermostat:

1. Turn the system switch to “Heat” or “Off”.

2. Turn the thermostat to the desired heating temperature setting.

3. If you are turning your air conditioner off for the winter or an extended period, shut off the power to the air conditioner.

If you have one thermostat for heating and another for cooling, they must be interlocked to prevent simultaneous operation:

1. Turn your cooling thermostat “Off” or to its highest setting.

2. Turn the heating thermostat to the desired temperature.

3. If you are turning your air conditioner off for the winter or an extended period, shut off the power to the air conditioner.

Otherwise, follow these simple rules:

1. Never run your system without filter. If you do, the cooling coils will get dirty and may become clogged.

2. Set your thermostat at the comfort level you wish – and then leave it alone. Let it control the operation of the air conditioning system. If you get chilly, turn it up a degree at a time until comfort is restored.

3. It takes longer for an air conditioner to cool your dwelling than it does for your furnace to heat it. So. . . don’t turn the unit on and expect a dramatic drop in temperature, at least not right away. If your home is hot and humid, the temperature will drop slowly.

4. Check your filters every ten days in summer to see if they are dirty. To keep them clean, use a mild solution of detergent and water on washable types. Replace non washable filters.

5. Keep your condenser coil clean. You can hose it down when it gets dirty.

If your air conditioner isn’t working:

1. Make sure the fuses are not blown or that your circuit breakers are on.

2. See that your thermostat is set at the desired temperature and that your system’s switch is on “Cool”.

3. For free air flow, make sure your return register is not covered and that the filter is clean.

Cooling

Thermostat

Double Throw

Double Pole Switch

Furance

Thermostat

BEFORE YOU CALL A SERVICEMAN

Let your serviceman check your system at the start of each air conditioning season. He will

To Air Conditioner

To Furance

Figure 1. Thermostat Interlock System

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4. Check the condenser coil and make sure it is clean and not clogged with grass or leaves.

If your air conditioner still isn’t working, call your nearest distributor.

SPECIFICATIONS

personal injury or property damage. Unless otherwise noted in these instructions, only factory authorized kits or accessories may be used with this product. Noncompliance may void the unit’s warranty.

Package Air Conditioners are designed for outdoor rooftop or ground level slab installations. The units are shipped ready for horizontal duct connections and are easily converted for down flow applications.

All models are shipped from the factory with the following:

1. Zero clearance to combustibles

2. Multi-speed direct-drive blower.

3. Compressor Anti-short-cycle timer (single phase models only).

4. Blower Speed Relay.

5. Horizontal or Down flow duct connections.

The unit dimensions are shown in Figure 2 .

Optional field-installed electric heater kits are available in 5 kw through 20 kw heating capacities. A separate installation instruction document for the electric heaters and their application accompanies this one. A single stage cooling 24VAC thermostat should be used with these units. If electric heat will be installed, a single-stage cooling, single stage heating

thermostat will be required.

SAFETY CONSIDERATIONS

It is the responsibility of the installer to ensure that the installation is made in accordance with

all applicable local and national codes.

Labels, Tags — When working with this equipment, follow all precautions in the literature, on tags, and on labels provided with the unit and/ or approved field installed kits. The type of hazard and severity are described on each label or tag.

WARNING:

Improper installation, service, adjustment, or maintenance may cause explosion, fire, electrical shock or other hazardous conditions which may result in

Pressures Within The System — This

equipment contains liquid and gaseous refrigerant under high pressure. Installation or servicing should only be performed by qualified trained personnel thoroughly familiar with this type equipment.

INSTALLATION REQUIREMENTS

Equipment Check — Before beginning the

installation, verify that the unit model is correct for the job. The unit model number is printed on the data label. All units have been securely packaged at the point of shipment. After unpacking the unit, carefully inspect it for apparent and concealed damage. Claims for damage should be filed with the carrier by the consignee.

Requirements and Codes — The installer must comply with all local codes and regulations which govern this type equipment. Local codes and regulations take precedence over any recommendations contained in these instructions. All electrical wiring must be made in accordance with local codes and regulations and with the National Electric Code (ANSI/NFPA

70) or in Canada the Canadian Electric Code Part 1 CSA C.22.1. Air Ducts must be installed in accordance with the standards of the National Fire Protection Association “Standards for Installation of Air Conditioning and Ventilation Systems” (NFPA 90A), “Standard for Installation of Residence Type Warm Air Heating and Air Conditioning Systems” (NFPA 90B), these instructions and all applicable local codes.

NFPA publications are available by writing:

National Fire Protection Association Batterymarch Park Quincy, Maine 02269

Unit Location — This air conditioner is designed only for outdoor installations. Choosing the location of the unit should be based on minimizing the length of the supply and return ducts. Consideration should also be given to availability

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of electric power, service access, noise, and shade. Sufficient clearance for unobstructed airflow through the outdoor coil must be maintained in order to achieve rated performance See Figure 3 for minimum clearances to obstructions.

Air Filter Requirements — Three phase units “Only” are supplied from the factory with an internal filter rack assembly. Air filters are not supplied; a suitable air filter must be installed in the unit or in the return air system for all units. See Table 1 for internal filter size requirements. When utilizing an Economizer or Fresh Air Equipment, the factory installed filter rack assembly must be removed prior to installation. Air filter pressure drop must not exceed 0.08 inches WC. Air filter(s) must be installed in the return air ductwork ahead of the evaporator coil of this unit. All return air to this unit must pass through the filter(s) before entering this unit. (See Routine Maintenance for Installation/ Removal of air filters).

INTERNAL FILTER

UNIT SIZE SIZE

R4GA 024-042, R4BC 024 (2) 14” x 25” x 1”

P4SA 036, P4SA 048 or P4SC 036, Q4SA 036 (2) 14” x 25” x 2”

R4GA 048-060, R4GC 030-042 (2) 16” x 25” x 1” P4SA 060, P4SC 048-060, or Q4SA 048-060, Q4SC-048-060 (2) 16” x 25” x 2”

R4GC 048-060 (2) 18” x 25” x 1” R4GM 024-072 or

Q4SC 048-060 (2) 18” x 25” x 2”

Securing Screw

Figure 3a. Internal Filter Rack Location

located on the front side of the unit. (See Figure

4.) Install a 2 inch condensate trap in the drain

line of the same size and prime with water. When connecting rigid drain line, hold the female fitting with a wrench to prevent twisting. Do not over tighten! Refer to local codes and restrictions

for proper condensate disposal requirements.

UNIT INSTALLATION

Ground Level — When installing the unit at

ground level, provide a concrete mounting pad separate from the building foundation. The pad must be level to insure proper condensate disposal and strong enough to support the unit’s weight. Refer to Figure 2 . Make sure the slab is a minimum of 2" above the grade and in an area that drains well.

Table 1. Internal Filter Size Requirements.

Removal of Internal Filter Rack — First

remove the Return Air Panel from the unit. Remove the height adjustment screw from the inside of the rack, and the (1) screw securing the assembly to the coil located on the left leg of the rack. The assembly can easily be collapsed and removed from the unit. See Figure 3a for filter rack securing screw locations.

For single phase downflow installations only, an internal filter accessory kit can be ordered. For horizontal installations, the air filter system must be installed in the return air ductwork. All return air to this unit must pass through the filter(s) before entering the evaporator coil.

Condensate Drain — Condensate is removed from the unit through the 3/4" female pipe fitting

WARNING:

To avoid the risk of property damage or personal injury; it is the rigger’s responsibility to insure that whatever means are used to hoist the unit are safe and adequate.

CAUTION:

All panels must be securely in place when rigging and hoisting.

Rigging and Hoisting — The unit should be

lifted using slings and spreader bars. The spreader bars are necessary to prevent damaging the top of the unit’s cabinet. Make sure that the lifting equipment is adequate for

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DOWNFLOW

SUPPLY DUCT

OPENING

24.9

3/4" NPT Female Drain Connector

30.0

27.2

23.6

1.8

1.75 Ø Power Entry (Capped)

1.25 Ø Power Entry

0.88 Ø Control Wiring Entry

13.3

12.0

13.5

16.0

13.5

23.5

Top View

14.7

47.5

16.0

12.0

DOWNFLOW

RETURN DUCT

OPENING

FILTER

ACCESS PANEL

5.0

SUPPLY

13.5

8.0

16.0

13.45

3 PHASE ONLY

HORIZONTAL

RETURN DUCT

16.0

OPENING

13.5

4.0

CONDENSING

COIL

Side View Back View

Model No. C

3 Ton 4 Ton 5 Ton

Unit

Weight

330 27.5 26.5 35.0 31.3 345 28.0 26.0 35.0 31.3 380 28.5 26.5 39.0 35.3

4.00

11.75 22.75

55.8

Center of Gravity Height (in inches)

with base rails without base rails

Figure 2. Dimensions

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36"

72"

36"

Figure 3. Minimum Clearances

the load. Refer to Figure 2 for unit weights. Keep the unit in an upright position at all times.

For rooftop installations, remove and discard the two supports attached beneath the unit.

The rigging must be located outside the unit’s center of gravity. Refer to Figure 2 for center of gravity location.

Rooftop — For rooftop installations use the appropriate accessory roof curb and follow all instructions included with it. Make sure the two supports beneath the unit have been removed.

Locate the unit according to local building codes and ordinances. The curb must be level to insure proper condensate drainage. (See Figure 6)

The roof must be capable of handling the weight of the unit. (See Figure 2) for unit weights. Reinforce the roof if required.

AIR DUCTS

Installation of Air Conditioning Systems” (NFPA 90A), “Standard for Installation of Residence Type Warm Air Heating and Air Conditioning Systems” (NFPA 90B), and all applicable local codes.

Design the duct work according to methods described by the National Warm Air Heating and Air Conditioning Association (ACCA). The ducts

▼▼

▼

▼▼

This unit is designed only for use with a supply and return duct. Air ducts should be installed in accordance with the standards of the National Fire Protection Association “Standard for

Condensate Drain

Figure 4. Condensate Drain

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Figure 5. Ground Level Installation

must be properly sized not to exceed .2" w.c. pressure drop at 400 scfm per nominal ton of cooling capacity.

Duct work should be attached directly to the unit flanges for horizontal applications. On roof curb installations the ducts must be attached to the curb hangers, not the unit.

Unconditioned Spaces — All duct work passing through unconditioned space must be properly insulated to minimize duct losses and prevent condensation. Use insulation with an outer vapor barrier. Refer to local codes for insulation material requirements.

Acoustical Duct Work — Certain installations may require the use of acoustical lining inside the supply duct work. Acoustical insulation must be in accordance with the current revision of the Sheet Metal and Air Conditioning Contractors National Association (SMACNA) application standard for duct liners. Duct lining must be UL classified batts or blankets with a fire hazard classification of FHC-25/50 or less. Fiber duct work may be used in place of internal duct liners if the fiber duct work is in accordance with the current revision of the SMACNA construction standard on fibrous glass ducts. Fibrous duct work and internal acoustical lining must be NFPA Class 1 air ducts when tested per UL Standard 181 for Class 1 ducts.

Horizontal to Down flow Conversion — The unit is shipped ready for horizontal duct connections. If down flow ducts are required, the unit must be converted following the steps below for both the supply and return ducts.

Figure 6. Roof Top Installation

1) Locate the duct cap inside the duct openings and remove the screw holding it in place.

2) Lift the cap out of the unit. (The cap can be pushed up from the bottom by reaching through the fork slot).

3) Cover the horizontal duct opening with the cap. The insulation will be on the indoor side.

4) Fasten the cover with screws and seal to prevent air leakage.

Clearance — This unit is approved for 6 inch clearance.

ELECTRICAL WIRING

General — Electrical power wiring must be

made in accordance with all applicable local codes and ordinances, and with the current revision of the National Electric Code NFPA 70 or in Canada CSA C.22.1 - Canadian Electrical Code Part 1. If any of the original wire as supplied with the unit must be replaced, it must be replaced with material of the same gage and temperature rating.

WARNING:

To avoid the risk of electrical shock, personal injury, or death, disconnect all electrical power to the unit before performing any maintenance or service. The unit may have more than one electrical power supply.

Page 8

Line Voltage — Before proceeding with the

3 T

ISOLATE

Violet

ISOLATE

Violet

ISOLATE

electrical connections, make certain that the voltage, frequency, and phase of the supply source are the same as those specified on the unit rating plate. Also verify that the service provided by the utility is sufficient to handle the additional load imposed by this equipment.

See the unit wiring label for proper high and low voltage wiring. Make all electrical connections in accordance with all applicable codes and ordinances.

Use a separate branch electrical circuit for this unit. A means of electrical disconnect must be located within sight of and readily accessibility to the unit. Internally mounted circuit breakers are available as field installed options. These circuit breakers can be used as an electrical disconnect. For maximum ampacity and over current protection, see the unit rating plate.

Provide power supply (or supplies) for the unit in accordance with the unit wiring diagram, and the unit rating plate. Connect the linevoltage leads to the corresponding terminals on the contactor (or the circuit breaker when the field installed circuit breaker kits are used) inside the control compartment. Use only copper wire for the line voltage power supply to this unit. Use proper code agency listed conduit and a conduit connector for

connecting the supply wires to the unit and for obtaining proper grounding. Grounding may also be accomplished by using the grounding lug provided in the control box.

WARNING:

The unit cabinet must have and uninterrupted or unbroken electrical ground to minimize personal injury if an electrical fault should occur. This ground may consist of electrical wire or approved conduit when installed in accordance with existing national or local codes.

Blower Speed — The blower speed is preset

at the factory for operation at medium speed. For optimum system performance and comfort, it may be necessary to change the factory set speed. To change the blower speed:

1. Disconnect all electrical power to the unit and remove the service panel.

2. Connect motor leads as shown in Figure 7.

Check all factory wiring per the unit wiring diagram and inspect the factory wiring connections to be sure none loosened during shipping or installation.

on Blower Wiring

Blower Speed

Blower Leads Low Medium High

Red BR T3

Black TB T1 TB T1 BR T3

Gray TB T1 TB T1 ISOLATE

Blue ISOLATE BR T3 ISOLATE

ISOLATE BR T( ) - Blower Relay Terminal (number) TB T( ) - Terminal Block Terminal (number)

and 5 Ton Blower Wiring

Blower Speed

Blower Leads Low Medium High

Red BR T3

Black TB T2 TB T1 BR T3

Gray TB T2 TB T1 ISOLATE

Blue TB T1 BR T3 ISOLATE

TB T1 BR T( ) - Blower Relay Terminal (number) TB T( ) - Terminal Block Terminal (number)

Figure 7. Motor Lead Connections

ISOLATE

Page 9

Low Voltage Connections

CAUTION:

To avoid the risk of property damage, make certain that the motor leads cannot come into contact with any uninsulated metal components of the unit.

Room Thermostat — Several options are

available for a room thermostat depending on the accessories installed with the unit. The available thermostats recommended for use with these units are listed with the accessories in Table 2. Select a thermostat which operates in conjunction with the installed accessories. The thermostat should be mounted about five feet above the ground on an inside wall. The

thermostat should be kept away from drafts, slamming doors, lamps, direct sunlight, or in line with the supply air flow.

To install the thermostat:

1. Position the sub base on an inside wall and mark the mounting holes and thermostat cable openings.

2. Cut out the cable opening and route the thermostat cable from the unit’s low voltage compartment to the thermostat location. The thermostat cable is supplied by the installer.

3. Connect the cable leads to the sub base or thermostat terminals and to the unit’s low voltage pigtails as shown in Figure 8. A system wiring diagram is also provided on the inside of the control panel cover.

FROM TIME DELAY

RELAY OR

BLOWER RELAY

ECONOMIZER

PLUG

Gray

2 3 4

Yellow

Blue

5 6 7 8 9

Typical Wiring (Field Supplied) for 1-Stage Cool

ECONOMIZER

PLUG

Gray

2 3 4

Yellow

Blue

5 6 7 8 9

Typical Wiring (Field Supplied) for 2-Stage Cool

INDOOR

THERMOSTAT

SUB-BASE

INDOOR

THERMOSTAT

SUB-BASE

(Optional,

Check

Thermostat

Instructions)

FROM ANTI

SHORT CYCLE

TIMER

(Optional,

Check

Thermostat

Instructions)

FROM

TRANSFORMER

FROM TIME DELAY

RELAY OR

BLOWER RELAY

FROM ANTI

SHORT CYCLE

TIMER

FROM

TRANSFORMER

Green

Black

Red

Green

Black

Red

Figure 8. Typical Thermostat Connection

Page 10

4. Secure sub base or thermostat to the wall using screws provided with the thermostat.

5. If sub base is used, install the correct thermostat housing to sub base.

6. Refer to thermostat instruction sheet for complete detailed mounting information.

START UP AND SYSTEM CHECK

Pre-Start Check List

• Verify that the unit is level to allow proper condensate drainage.

• Verify that there is free airflow to and from the outdoor coil and that all clearance requirements are met.

• Verify that the duct work is sealed to prevent air leakage.

• Verify that the line voltage power leads are securely connected and the unit is properly grounded.

• Verify that the low voltage wires are securely connected to the correct leads on the low voltage terminal strip.

• Verify that all exterior panels are replaced and securely fastened.

• Verify that the outdoor fan turns freely.

• Verify that the power supply branch circuit overcurrent protection is sized properly.

• Verify that the thermostat is wired correctly. The thermostat function switch should be set to “Off’ and the thermostat

fan switch should be set to “Auto.”

Start-Up Procedure

Close all electrical disconnects to energize the system.

Air Circulation — Leave the thermostat system switch set to “Off” and set the thermostat fan switch to “On.” The blower motor should run continuously. Check for air delivery at the register(s). Ensure that there are no obstructions at the registers or in the duct work. Set thermostat fan switch to “Auto.”

Short Cycle Protection (Single Phase Units) — With the system operating in cooling mode,

note the temperature setting of the thermostat and gradually until the unit de-energizes. Immediately lower

the set point temperature of the thermostat to its original setting and verify that the indoor blower is energized. Verify that after approximately 5 minutes the compressor and fan energize and that the temperature of the discharge air is cooler than the room temperature.

System Cooling

1. Set the thermostat system switch to

2. After allowing the unit to run for several

raise the set-point temperature

“Cool” and the thermostat fan switch to “Auto.” Gradually lower the thermostat temperature switch below room temperature and observe that the blower, compressor, and fan energize. Check that air cooler than room temperature is being discharged at the register. Listen for any unusual noises. Locate the source and correct as needed.

minutes, set the temperature selector above room temperature.

- The fan and compressor cycles off with the thermostat.

- The blower should also stop unless fan switch is set to “ON”

position.

UNIT MAINTENANCE

WARNING:

If the unit is equipped with a crankcase heater, allow 24 hours prior to continuing the start up procedures to allow for heating of the refrigerant compressor crankcase. Failure to comply may result in damage and could cause premature failure of the system. This warning should be followed at initial start up and any time the power has been removed for 12 hours

or longer.

WARNING:

To avoid risk of electrical shock, personal injury, or death, disconnect all electrical power to the unit before performing any maintenance or service. The unit may have more than one electrical supply.

Refrigerant Charging — Packaged air

conditioners are fully charged at the factory. The system refrigerant charge can be checked and adjusted through the service ports provided

Page 11

on the front panel. Use only gauge lines which have a “Schrader” depression device present to actuate the valve. Draw a vacuum on gauge lines to remove air before attaching them to the service ports on the unit. Refrigerant charging must be done by qualified personnel familiar with safe and environmentally responsible refrigerant handling procedures.

WARNING:

Packaged Air Conditioners are shipped fully charged and ready for installation. When a system is installed according to these instructions, no refrigerant charging is required. If repairs make it necessary for evacuation and charging, it should only be done by qualified, trained personnel thoroughly familiar with this equipment. Some local codes require licensed installation/service personnel to service this type of equipment. Under no circumstances should the owner attempt to install and/or service this equipment. Failure to comply with this warning could result in property damage, personal injury, or death.

Routine Maintenance — Proper maintenance

is important to achieve optimum performance from the air conditioner. The ability to properly perform maintenance on this equipment requires certain mechanical skills and tools. If you do not possess these skills, contact your dealer for maintenance. Consult your local dealer about the availability of maintenance contracts. At a minimum, routine maintenance should include the following:

1. Inspect and clean or replace air filters at the beginning of each heating and cooling season, or more frequently if required.

2. Inspect the condensate drain and outdoor coil at the beginning of each cooling season. Remove any debris. Clean the outdoor coil and louvers as necessary using a mild detergent and water. Rinse thoroughly with water.

3. Inspect the electrical connections for tightness at the beginning of each heating and cooling season. Service as necessary.

4. Motors having oil tubes should be lubricated annually by adding 10 drops of SAE 20 non detergent oil. Do not over oil or lubricate any motor that does not have oil tubes.

CAUTION:

Use care when removing parts from this unit. Personal injury can result from sharp metal edges present in all equipment of sheet metal construction.

External Static Pressure Drop - inches water column

Model Speed 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0. 8

High 1600 1510 1410 1310 1200 1070 930 760

3 Ton

4 Ton

5 Ton

Medium 1410 1330 1250 1150 1050 940 820 670

Low 1130 1070 1000 930 850 760 650 530

High 2000 1930 1850 1770 1690 1600 1510 1410

Medium 1760 1700 1630 1560 1490 1410 1330 1250

Low 1410 1360 1310 1250 1200 1130 1070 1000

High 2200 2140 2070 2000 1930 1850 1770 1690

Medium 1940 1890 1830 1760 1700 1630 1560 1490

Low 1560 1510 1460 1410 1360 1310 1250 1200

- Speed set at factory

The unit should never be operated without a filter in the return air system. Replace disposable filters with the same type and size.

CAUTION:

Table 1. Blower Curves

Page 12

3 TON OUTDOOR TEMPERATURE ( °F )

70 75 80 85 90 95 100 105

Suct.

Disch.

Pres.

Temp.

Pres.

Temp.

Pres.

Temp.

Pres.

Temp.

Pres.

Temp.

Pres.

Temp.

Pres.

Temp.

Disch.

Pres.

74 203 158

76 204 172 218 163

78 204 189 220 176 234 166 246 163 257 166

80 205 206 221 191 235 179 249 169 261 174 272 170

82 206 223 222 205 237 193 251 181 265 180 276 177 287 175

84 223 219 239 205 253 196 267 189 280 183 292 181 302 180

86 240 218 255 207 269 199 282 193 296 188 307 186

88 271 210 285 203 298 197 311 19 3

90 300 207 314 202 92 303 216 316 211 94 319 220

Disch. Temp.

4 TON

OUTDOOR TEMPERATURE ( °F )

70 75 80 85 90 95 100 105

Suct.

Disch.

Pres.

70 201 117

Temp.

Pres.

Temp.

Pres.

Temp.

Pres.

Temp.

Pres.

Temp.

Pres.

Temp.

Pres.

Temp.

Disch.

Pres.

72 203 120 216 128

74 204 137 219 134 233 130 245 137 258 142

76 204 154 220 148 235 144 250 139 262 150 275 149

78 205 171 221 163 237 158 252 151 266 154 279 156 292 156

80 222 177 238 170 254 166 268 163 283 161 296 162 310 163

82 240 183 255 177 271 174 285 171 300 169 314 168

84 273 184 288 181 303 178 317 17 7

86 305 188 320 185 88 307 197 322 194 90 325 203

5 TON OUTDOOR TEMPERATURE ( °F )

Suct. Pres.

70 75 80

Disch.

Pres.

Temp.

Pres.

Disch. Temp.

Disch.

Pres.

Disch. Temp.

85 90 95 100 105

Disch.

Pres.

Temp.

Pres.

Temp.

Pres.

Temp.

Pres.

Disch. Temp.

Disch.

Pres.

70 200 146

72 202 155 217 157

74 202 172 220 166 236 161 250 166 265 172

76 203 189 221 180 238 175 255 169 269 180 283 180

78 204 206 222 195 240 188 257 182 273 185 287 186 302 187

80 223 209 241 201 258 196 275 193 292 192 306 193 321 195

82 243 214 260 208 277 204 294 202 310 200 325 201

84 279 214 296 211 313 209 329 20 8

86 315 219 331 217 88 317 228 334 226 90 336 235

Disch. Temp.

* Note: All pressures are listed in psig and all temperatures in °F.

- Shaded Boxes indicate flooded conditions

- Rated Design Values. Suction Pressure will be lower than design

value if indoor air flow, entering dry bulb, or entering wet bulb temperatures are lower than design.

- Discharge temperatures greater than charted values indicates a refrigerant undercharge.

PLEASE LEAVE THESE INSTALLATION

INSTRUCTIONS WITH THE UNIT OWNER.

Table 2. Refrigerant Charging Charts

INSTALLER:

¢708142¦¤

708142A

708142A (Replaces 7081420)

Specifications and illustrations

subject to change without notice

and without incurring obligations.

Printed in U.S.A. (09/06)