installation manual split-system … installation manual ... you begin to install unit. save this...

CONTENTS

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . 5

AGENCY APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . 5

INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

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

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

See the following page for a complete Table of Contents.

NOTES, CAUTIONS AND WARNINGS

Installer should pay particular attention to the words:NOTE, CAUTION, and WARNING. Notes are intended toclarify or make the installation easier. Cautions are givento prevent equipment damage. Warnings are given toalert installer that personal injury and/or equipment dam-age may result if installation procedure is not handledproperly.

INSTALLATIONMANUAL

CAUTION: READ ALL SAFETY GUIDES BEFORE YOU BEGIN TO INSTALL UNIT.

SAVE THIS MANUAL

MODELS: HA300 - 25 TonHB360 - 30 TonHB480 - 40 TonHB600 - 50 Ton

SPLIT-SYSTEMCONDENSING UNITS

(AIR COOLED)

106246-YIM-A-0105

106246-YIM-A-0105

2 Unitary Products Group

TABLE OF CONTENTS

NOMENCLATURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . 5REFERENCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

AGENCY APPROVALS . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6LIMITATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6LOCATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

ROOFTOP LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7GROUND LEVEL LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . . 7

CLEARANCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8RIGGING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8POWER WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9PHASING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9CONTROL WIRING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9COMPRESSOR CRANKCASE HEATERS . . . . . . . . . . . . 9REFRIGERANT MAINS . . . . . . . . . . . . . . . . . . . . . . . . . 10LINE SIZING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11SERVICE VALVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11EVACUATION AND CHARGING . . . . . . . . . . . . . . . . . . 12PIPING AND ELECTRICAL CONNECTIONS . . . . . . . . . 17PIPING AND ELECTRICAL CONNECTION SIZES . . . . 19

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21CRANKCASE HEATER . . . . . . . . . . . . . . . . . . . . . . . . . 21PRE-START CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . 21INITIAL START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . 21

OVERVIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21SAFETY CONTROLS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22PUMP OUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22CONTINUOUS BLOWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22INTERMITTENT BLOWER . . . . . . . . . . . . . . . . . . . . . . . . . . . 22COOLING SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . 23FLASH TIMES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

CONDENSER FAN OPERATION . . . . . . . . . . . . . . . . . . 23OPERATION WITH A TWO-STAGE THERMOSTAT . . . 24OPERATION WITH A FOUR-STAGE THERMOSTAT . . 24

SECURE OWNER'S APPROVAL . . . . . . . . . . . . . . . . . 24

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24CLEANING CONDENSER SURFACE . . . . . . . . . . . . . . 24LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24COMPRESSOR REPLACEMENT . . . . . . . . . . . . . . . . . 24

LIST OF FIGURESFig. # Pg. #

1 CORNER WEIGHTS & CENTER OF GRAVITY . . . . . 7

2 TYPICAL RIGGING . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3 FIELD WIRING DIAGRAM - HA 300 UNIT . . . . . . . . 15

4 FIELD WIRING DIAGRAM - HB 360, 480, 600UNITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5 HA/HB UNIT DIMENSIONS . . . . . . . . . . . . . . . . . . . . 17

6 25, 30 & 40 TON POWER AND CONTROL WIRING CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

7 50 TON POWER AND CONTROL WIRING CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

8 25 TON PIPING CONNECTIONS . . . . . . . . . . . . . . . 19

9 30 & 40 TON PIPING CONNECTIONS . . . . . . . . . . . 20

10 50 TON PIPING CONNECTIONS . . . . . . . . . . . . . . . 20

11 FAN ORIENTATION CONTROL BOX END . . . . . . . . 24

12 25 TON CHARGING CHART . . . . . . . . . . . . . . . . . . . 25




16 25 TON CONDENSER UNIT WIRING DIAGRAM - 208/230-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

17 25 TON CONDENSER UNIT WIRING DIAGRAM - 460-3-60, 575-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

18 30 OR 40 TON CONDENSING UNIT WIRINGDIAGRAM - 208/230-3-60 . . . . . . . . . . . . . . . . . . . . . 29

19 30 OR 40 TON CONDENSING UNIT WIRINGDIAGRAM - 460-3-60, 575-3-60 . . . . . . . . . . . . . . . . . 30

20 50 TON CONDENSER UNIT WIRING DIAGRAM - 208/230-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

21 50 TON CONDENSER UNIT WIRING DIAGRAM - 460-3-60, 575-3-60 . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

106246-YIM-A-0105

Unitary Products Group 3

TABLE OF CONTENTS - Con’t.

LIST OF TABLESTbl. # Pg. #

1 PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2 UNIT APPLICATION DATA . . . . . . . . . . . . . . . . . . . . . 6

3 CORNER WEIGHTS & CENTER OF GRAVITY (INCHES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

4 MINIMUM CLEARANCES . . . . . . . . . . . . . . . . . . . . . . 8

5 ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . 10

6 SUCTION LINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

7 LIQUID LINES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Tbl. # Pg. #

8 R-22 LINE CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . 14

9 UNIT DIMENSIONS (INCHES) . . . . . . . . . . . . . . . . . 17

10 PIPING AND ELECTRICAL CONNECTION SIZES (25T) (INCHES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

11 PIPING AND ELECTRICAL CONNECTION SIZES (30/40/50T) (INCHES) . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

12 ELECTRICAL POWER KNOCKOUT SIZES(INCHES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

13 STATUS LED FLASH RATE CHART . . . . . . . . . . . . 23

106246-YIM-A-0105


NOMENCLATURE

NOTE: HB models are designed for 4-Pipe (dual)applications only. 4-Pipe condensing units can-not be matched with one single 2-Pipe air han-dler.

PRODUCT NOMENCLATURE

YORK OUTDOOR SPLIT CONDENSING UNITS

H A 300 C 00 A 2 A AA 2

Model # Model NumberDescription Options

H Product Category H = Air Conditioner Split System

A Product Identifier A = R-22 Standard Efficiency 2-PipeB = R-22 Standard Efficiency 4-Pipe

300Nominal CoolingCapacityMBH

300 = 25 Ton360 = 30 Ton480 = 40 Ton600 = 50 Ton

C Heat Type C = Cooling Only

00 Nominal HeatingCapacity

00 = No Heat Installed

A Airflow Options A = Standard Motor

2 Voltage 2 = 208/230-3-604 = 460-3-60

5 = 575-3-60

A Installation Options A = NoneB = Disconnect

C = Service ValvesD = Service Valves + Disconnect

AA Additional Options AA = NoneAC = Technicoated Coil

2 Product Generation 1 = 1st Generation 2 = 2nd Generation

106246-YIM-A-0105


GENERAL

These condensing units are designed for outdoorinstallation on a roof or at ground level. Every unit iscompletely piped and wired at the factory and isshipped ready for immediate installation. Only the liq-uid and suction lines to the evaporator coil, the filterdrier, the control wiring and the main power wiring arerequired to complete the installation. Each unit is dehy-drated, evacuated, leak tested and pressure tested at450 psig before being pressurized with a holdingcharge of refrigerant-22 for shipment and/or storage.

All controls are located in the front of the unit and arereadily accessible for maintenance, adjustment andservice. All wiring (power and control) can be madethrough the front of the unit.

SAFETY CONSIDERATIONS

Installer should pay particular attention to the words:NOTE, CAUTION, and WARNING. Notes are intendedto clarify or make the installation easier. Cautions aregiven to prevent equipment damage. Warnings aregiven to alert installer that personal injury and/or equip-ment damage may result if installation procedure is nothandled properly.

REFERENCE

This instruction covers the installation and operation ofthe basic condensing unit. For information on theinstallation and operation of the evaporator blowerunits, refer to instruction Form No. 035-18496-000.

All accessories come with a separate Installation Man-ual.

Refer to Parts Manual for complete listing of replace-ment parts on this equipment.

AGENCY APPROVALS

Design certified by ETL as follows:

1. For use as a cooling unit.

2. For outdoor installation only.

INSPECTION

As soon as a unit is received, it should be inspected forpossible damage during transit. If damage is evident,the extent of the damage should be noted on the car-rier’s freight bill. A separate request for inspection bythe carrier’s agent should be made in writing.

Improper installation may create a conditionwhere the operation of the product could causepersonal injury or property damage.

Improper installation, adjustment, alteration,service or maintenance can cause injury orproperty damage. Refer to this manual forassistance or additional information, consult aqualified installer or service agency.

This product must be installed in strict compli-ance with the enclosed installation instructionsand any applicable local, state, and nationalcodes including but not limited to, building,electrical and mechanical codes.

106246-YIM-A-0105


INSTALLATION

LIMITATIONS

These units must be installed in accordance with allnational and local safety codes. If no local codes apply,installation must conform to the appropriate nationalcodes. Units are designed to meet National SafetyCode Standards. If components are to be added to aunit to meet local codes, they are to be installed at thedealer's and/or the customer's expense.

LOCATION

Use the following guidelines to select a suitable loca-tion for both the condensing unit and the evaporator.

1. The condensing unit is designed for outdoor instal-lation only.

TABLE 1: PHYSICAL DATA

ModelHA/HB

Compressor*Condenser Unit Weight

(Lbs.) Charge, R-22Fan (Propeller) Fan Motor Coil (Copper Tube-Aluminum Fin)

NominalCapacity

(tons)

CapacityStages Qty. Dia. Pitch

Deg.Nom.CFM RPM HP

FaceArea(Ft.†)

RowsDeep

Coil Width(In.)

TubeOD (In.)

Fins perinch

Ship-ping

Opera-tion

Operation‡

(Lbs.-Oz.)Holding(Lbs.)

300 25 2 4 24 34 23244

1140

1.25 50

2

60

3/8 16

1608 1658 49.65 1.0

360

System 1 15 2 2 24 36 12690 1.25 25 60 1730 1790 30.08 1.0

System 2 15 2 2 24 36 12690 1.25 25 60 30.08

480

System 1 20 2 2 30 22 15414 1.50 32.5 78 1961 2037 37.83 1.0

System 2 20 2 2 30 22 15414 1.50 32.5 78 37.83

600

System 1 25 2 2 30 26 19386 1.50 52 78 2470 2563 46.59 1.0

System 2 25 2 2 30 26 19386 1.50 52 78 46.59

*. All compressors are Copeland Scrolls.†. One of the fan motors is controlled by a pressure switch and will not operate until system pressure reaches 280 psig and drops

below 180 psig.‡. The total operating charge of the condensing unit, matching indoor unit and 25 feet of interconnecting piping.

TABLE 2: UNIT APPLICATION DATA

Voltage Variation*

Min. / Max.

*. Utilization range “A” in accordance with ARI Standard 110.

208/230-3-60 187/252

460-3-60 432/504

575-3-60 540/630

Ambient Air on Condenser CoilMin. /Max. 40°F/125°F†

†. These units can operate in an ambient temperature of 125°F providing the wet bulb temperature of the air entering the evaporator coil does not exceed 67°F. Unit can operate to 0°F if equipped with a low ambient kit.

Suction Pressure at Compressor andCorresponding Temp. at Saturation

Min. / Max.

57.5 psig / 92.6 psig32.0 ºF / 55.0 ºF

106246-YIM-A-0105


2. The condenser fans are the propeller type and arenot suitable for use with ductwork in the condenserair stream.

3. The condensing unit and the evaporator should bepositioned to minimize the number of bends in therefrigerant piping.

4. The condensing unit should be as close to theevaporator as practical.

5. The condensing unit should not be installed wherenormal operating sounds may be objectionable.

6. The evaporator should be located within the build-ing, either outside or inside the conditioned space.

ROOFTOP LOCATIONS

Be careful not to damage the roof. Consult the buildingcontractor or architect if the roof is bonded. Choose alocation with adequate structural strength to supportthe unit.

The condensing unit must be mounted on level sup-ports. The supports can be channel iron beams orwooden beams treated to reduce deterioration.

Minimums of two (2) beams are required to supporteach unit. The beams should: (1) be positioned per-pendicular to the roof joists. (2) Extend beyond thedimensions of the section to distribute the load on theroof. (3) Be capable of adequately supporting the con-centrated loads at the corners. See Figure 1.

These beams can usually be set directly on the roof.Flashing is not required.

NOTE: On bonded roofs, check for special installationrequirements.

GROUND LEVEL LOCATIONS

It is important that the units be installed on a substan-tial base that will not settle, causing strain on the refrig-erant lines and possible leaks. A one-piece concreteslab with footers that extend below the frost line is rec-ommended. The slab should not be tied to the buildingfoundation, as noise will telegraph.

TABLE 3: CORNER WEIGHTS & CENTER OF GRAVITY (INCHES)

Unit ModelUnit Weight (Lbs.) Unit Dimensions

(Inches) A B C D Dim X Dim Y WeightA to D

WeightB to C

Shipping Operation Length Width

HA300 1608 1658 110.46 88.46 337 412 472 386 49.7 47.7 723.5 884.5

HB360 1730 1790 110.46 88.46 363 531 497 339 44.8 42.8 701.6 1028.4

HB480 1961 2037 128.46 88.46 393 598 585 385 51.0 43.8 778.5 1182.5

HB600 2470 2563 128.46 88.46 470 757 767 476 49.2 44.5 946.0 1524.0

FIGURE 1 - CORNER WEIGHTS & CENTER OF GRAVITY

106246-YIM-A-0105


Concrete piers can also support ground level units.These piers should (1) extend below the frost line, (2)be located under each of the section's four corners,and (3) be sized to carry the load of the corner it sup-ports.

On either rooftop or ground level installations, rubberpadding can be applied under the unit to lessen anytransmission of vibration.

Holes are provided in the base rails for bolting the unitto its foundation.

For ground level installations, precautions should betaken to protect the unit from tampering and unautho-rized persons from injury. Screws on access panels willprevent casual tampering. Further safety precautionssuch as a fenced enclosure or locking devices on thepanels may be advisable. Check local authorities forsafety regulations.

CLEARANCES

The units must be installed with sufficient clearance forair to enter the condenser coil, for air discharge and forservicing access. See Table 4 for clearances.

NOTE: Additional clearance is required to remove thecompressors out the side of the unit, unless ameans is available to lift the compressor outthrough the top of the unit.

RIGGING

Exercise care when moving the unit. Do not removeany crating until the unit is near the place of installation.

When preparing to move the unit, always determine thecenter of gravity (see Table 3 and Figure 1) of the unitin order to equally distribute the weight. Slings con-nected to the compressor end of a unit will usually haveto be made shorter, so the unit will lift evenly (seeFigure 2).

Rig units by attaching chain or cable hooks to the holesprovided on the base rail. See Figure 6 for details onrigging holes.

The length of the spreader bars must exceed the widthof the unit. Refer to Table 3 for unit weights.

Do not permit overhanging structures or shrubsto obstruct condenser air discharge.

TABLE 4: MINIMUM CLEARANCES

Clearance Description Distance in Inches

Overhead (Top) 120

Front (Access Cover) 36

Rear (piping connections) 36

Left Side 30

Right Side 30

Bottom*

*. In all installations where snow accumulates and winter operation is expected, additional height must be provided to insure normal condenser airflow.

0

Spreaders, longer than the largest dimensionacross the unit must be used across the top ofthe unit.

Before lifting a unit, make sure that its weight isdistributed equally on the cables so that it willlift evenly.

FIGURE 2 - TYPICAL RIGGING

106246-YIM-A-0105


NOTE: If planning to handle the 25-50 ton split with afork truck, 1WS0407 skid for HA300/HB360and 1WS0408 skid for HB480/600 units will berequired.

POWER WIRING

Check the available power and the unit nameplate forlike voltage. Run the necessary number of properlysized wires to the unit. Provide a disconnect switch (ifnot included with the unit) and fusing as required.Route the conduit through the large knockout locatedon the front of the electrical box. See Table 5 for Elec-trical Data.

The disconnect switch may be bolted to the side of theunit but not to any of the removable panels; this wouldinterfere with access to the unit. Make sure that norefrigerant lines will be punctured when mounting thedisconnect switch, and note that it must be suitable foroutdoor installation.

START-UP

PHASING

The units are properly phased at the factory. Check forproper compressor rotation. If the fans or compressors

rotate in the wrong direction at start-up, the electricalconnection to the unit is misphased. Change theincoming line connection phasing to obtain proper rota-tion. (Scroll compressors operate in only one direction.If the scroll is drawing low amperage, has similar suc-tion and discharge pressures, or producing a highnoise level, the scroll is misphased.)

CONTROL WIRING

Route the necessary low voltage control wires from theSimplicity™ control board to the thermostat and alsofrom the low voltage condensing section control box orthe terminal block inside the evaporator unit and to theevaporator fan motor controller. Refer to Figures 3 and4 for field wiring diagrams. A terminal block is providedin the evaporator control box to accommodate the wir-ing from the evaporator solenoid valves.

COMPRESSOR CRANKCASE HEATERS

The compressors are equipped with crankcase heatersto prevent the migration of refrigerant to the compres-sors. The heaters are energized only when the unit isnot running.

If the main switch is disconnected for long periods ofshut down, do not attempt to start the unit for 8 hoursafter the switch has been re-connected. This will allowsufficient time for all liquid refrigerant to be driven out ofthe compressor.

If handling a unit equipped with a 1WS skid,length of forks must be a minimum of 96”. Forklengths less than 96” will not span the requiredwidth of the skid and can cause damage to theunit’s base rails or condenser coils.

All power and control wiring must be in accor-dance with National and Local electrical codes.

Scroll compressors require proper rotation tooperate correctly. Units are properly phased atthe factory. Do not change the internal wiring tomake the blower condenser fans or compres-sor rotate correctly.

106246-YIM-A-0105


REFRIGERANT MAINS

Many service problems can be avoided by taking ade-quate precautions to provide an internally clean anddry system and by using procedures and materials thatconform to established standards.

Use hard drawn copper tubing where no appreciableamount of bending around pipes or other obstructionsis necessary. If soft copper is used, care should betaken to avoid sharp bends that may cause a restric-tion.

Pack fiberglass insulation and a sealing material suchas permagum around refrigerant lines where they pen-etrate a wall to reduce vibrations and to retain someflexibility.

Support all tubing at minimum intervals with suitablehangers, brackets or clamps.

Braze all copper-to-copper joints with Silfos-5 or equiv-alent brazing material. Do not use soft solder.

Insulate all suction lines with a minimum of 1/2" ARMA-FLEX or equal. Liquid lines exposed to direct sunlightand/or high temperatures must also be insulated.

Never solder suction and liquid lines together. Theycan be taped together for convenience and supportpurposes, but they must be completely insulated fromeach other.

The liquid and suction connections permit leak testing,evacuation, and partial charging of the field piping and

the evaporator without disturbing the condenser coilsduring initial installation.

Before beginning installation of the mains, be sure thatthe unit has not developed a leak in transit. If pressurestill exists in the system, it can be assumed to be leakfree. DO NOT release the holding charge.

A filter-drier MUST be field-installed in the liquid line ofevery system to prevent dirt and moisture from damag-ing the system. Properly sized filter-driers are shippedwith each condensing section.

NOTE: Installing a filter-drier does not eliminate theneed for the proper evacuation of a systembefore it is charged.

A field-installed moisture indicating sight-glass shouldbe installed in the liquid line(s) between the filter-drierand the evaporator coil. The moisture indicating sight-glass can be used to check for excess moisture in thesystem or used as a visual means to verify refrigerantcharge.

All lines have a copper disc brazed over the end. Also,if the unit does not have service valves, the holdingcharge must be reclaimed to allow the installer to con-nect piping. The temperature required to make or breaka brazed joint is sufficiently high to cause oxidation ofthe copper unless an inert atmosphere is provided.

NOTE: Dry Nitrogen should flow through the system atall times when heat is being applied and untilthe joint has cooled.

TABLE 5: ELECTRICAL DATA

Unit ModelDesignation

Compressor Fan Motor Unit Ampacity (Amps)

Max. Fuse Size

(Amps)

Min. Disconnect

SizePower Supply Qty. RLA(each)

LRA(each) Power Supply HP Qty. FLA (each)

HA300

2 208/230-3-60 2 47.1 350.0 208/230-3-60 1.25 4 4.5/4.3 124.6 150 150

4 460-3-60 2 25.0 158.0 460-3-60 1.25 4 2.15 64.9 80 70

5 575-3-60 2 19.9 125.0 575-3-60 1.25 4 1.7 51.9 70 60

HB360

2 208/230-3-60 4 32.1 195.0 208/230-3-60 1.25 4 4.5/4.3 154.4 175 175

4 460-3-60 4 16.4 95.0 460-3-60 1.25 4 2.15 78.3 90 90

5 575-3-60 4 12.1 80.0 575-3-60 1.25 4 1.7 58.2 70 70

HB480

2 208/230-3-60 4 42.0 239.0 208/230-3-60 1.50 4 5.8 201.7 225 225

4 460-3-60 4 19.2 125.0 460-3-60 1.50 4 2.9 93.2 110 110

5 575-3-60 4 13.8 80.0 575-3-60 1.50 4 2.2 67.5 80 80

HB600

2 208/230-3-60 4 47.1 350.0 208/230-3-60 1.50 4 5.8 224.7 250 250

4 460-3-60 4 25.0 158.0 460-3-60 1.50 4 2.9 117.9 125 150

5 575-3-60 4 19.9 125.0 575-3-60 1.50 4 2.2 93.4 110 110

106246-YIM-A-0105


Remove the evaporator holding charge and any capsor discs on the liquid and suction connections that willnot permit a free flow of nitrogen.

NOTE: Always drill a small hole in sealing caps anddiscs before unbrazing to prevent the pressurein the line from blowing them off.

NOTE: Solenoid and hot gas bypass valves (if used)should be opened manually or electrically dur-ing brazing or evacuating.

The evaporator coil section is shipped with the sidepanels suitable for right end piping connections whenviewed from the return air ends of the section.

Begin the refrigerant mains by installing the liquid linefrom the condensing unit to the evaporator liquid con-nection, maintaining a flow of nitrogen during all braz-ing operations. The filter-drier and sight glass must belocated in this line, close to the evaporator. Make thesuction line connection at the evaporator and run theline to the condensing unit.

For Units Without Service Valves - Reclaim therefrigerant holding charge prior to opening any portionof the system. Connect a low pressure Nitrogen sourceto the suction and liquid line service ports on the con-densing unit. Drill a small hole in the sealing disk; theflow of Nitrogen will prevent any debris from enteringthe system. Unbraze the sealing disk and prepare thejoint for connections of the main lines. Connect thelines while maintaining a flow of Nitrogen from the liq-uid line service port through the evaporator, back to thecondensing unit and out the suction service port.

For Units Equipped With Service Valves - Verify theservice valves are fully seated by screwing the stemdown into the valve body until it stops. Connect a low-pressure nitrogen source to the service port on thevalve body. The flow of Nitrogen will prevent oxidationof the copper lines during installation. Drill a small holein the sealing disk; the flow of Nitrogen will prevent anydebris from entering the system. Wrap the valve bodywith a wet rag to prevent the valve body from overheat-ing during the brazing process. Overheating the valvewill damage the valve seals. Ensure the valve is ade-quately protected prior to any brazing on the valvebody. Unbraze the sealing disk and prepare the jointfor connections of the main lines. Connect the lineswhile maintaining a flow of Nitrogen from the liquid linevalve service port through the evaporator, back to thecondensing unit and out the suction valve service port.

Once the brazing process is complete, leak testingshould be done on all interconnecting piping and theevaporator before proper evacuation to 500 microns isperformed. Once the line set and evaporator section isproperly evacuated the service valves can be openedand the condensing unit is now ready to charge withthe appropriate weight of refrigerant.

LINE SIZING

When sizing refrigerant pipe for a split-system air con-ditioner, check the following:

1. Suction line pressure drop due to friction.

2. Liquid line pressure drop due to friction.

3. Suction line velocity for oil return.

4. Liquid line pressure drop due to vertical rise.Tables 6 and 7 list friction losses for both the suc-tion and liquid lines on the condensing section. Forcertain piping arrangements, different sizes of suc-tion line pipe may have to be used. The velocity ofthe refrigerant vapor must always be great enoughto carry the oil back to the compressor.

Evaporator Below Condensing Section - On a splitsystem where the evaporator blower is located belowthe condensing section, the suction line must be sizedfor both pressure drop and for oil return. See Table 6.

Condensing Section Below Evaporator - When thecondensing section is located below the evaporatorblower, the liquid line must be designed for the pres-sure drop due to both friction loss and vertical rise. SeeTable 10. If the pressure drop due to vertical rise andfriction exceeds 40 psi, some refrigerant will flashbefore it reaches the thermal expansion valve.

Flash gas:

1. Increases the liquid line pressure loss due to fric-tion that in turn causes further flashing.

2. Reduces the capacity of the refrigerant controldevice that starves the evaporator.

3. Erodes the seat of the refrigerant control device.

4. Causes erratic control of the refrigerant enteringthe evaporator.

SERVICE VALVES

These condensing units may have service valves onthe compressor suction line and on the liquid line

106246-YIM-A-0105


leaving the condenser coil or if so equipped from thefactory, if chosen as an option.

The liquid and suction line service valves have anaccess port for evacuating, charging and pressure-checking the system.

EVACUATION AND CHARGING

Determine the required weight of refrigerant usingTable 1, Physical Data and Table 8, Refrigerant LineCharge. Table 1 includes operating charge based onthe unit plus 25 feet of refrigerant lines. Table 8includes data required to adjust the charge for linelengths other than 25 feet.

Connect a vacuum pump through a charging manifoldto both the liquid service port connection on the liquid

line and the suction service port connection on the suc-tion line. Vacuum pump connection lines should beshort and no smaller than 3/8" OD.

The refrigerant mains and the evaporator may now beevacuated. After proper evacuation and dehydration,charge the required weight of liquid refrigerant into theliquid access connection. After refrigerant flow slows,start the compressor and continue to charge refrigerantgas through the suction service port connection.

If proper equipment is not available for weighing in therefrigerant charge, moisture indicating sight glass maybe used to aid in charging the unit.

After proper evacuation and dehydrating of the unit,charge the unit as described above until the moistureindicating sight glass is clear. The correct refrigerantpressures are indicated as shown in Figures 12through 15.

Never remove a cap from an access portunless the valve is fully back-seated with itsvalve stem in the maximum counter-clockwiseposition because the refrigerant charge will belost. Always use a refrigeration valve wrench toopen and close these service valves.

Operating compressor with suction pressurebelow 23 psi will result in overheating of thescrolls and permanent damage to the com-pressor drive bearing.

106246-YIM-A-0105


TABLE 6: SUCTION LINES

Model Designation Nominal Capacity (Tons)

Refrigerant Flow Rate (Lbs./Min.)

Copper Tubing (Inches, O.D.)

Refrigerant Gas Velocity (Ft./Min.)

Friction Loss (PSI/100 Ft.)

HA300 System #1

Full Capacity 25 802 1/8 1945 1.22 5/8 1500 0.63 1/8 1040 0.3

Half Capacity 12.5 402 1/8 1110 0.52 5/8 750 0.23 1/8 520 0.1

HB360

System #1

Full Capacity 15 471 3/8 2873 4.11 5/8 2030 1.82 1/8 1167 0.5

Half Capacity 7.5 23.51 3/8 1437 1.11 5/8 1015 0.52 1/8 850 0.2

System #2

Full Capacity 15 471 3/8 2873 4.11 5/8 2030 1.82 1/8 1167 0.5

Half Capacity 7.5 23.51 3/8 1437 1.11 5/8 1015 0.52 1/8 850 0.2

HB480

System #1

Full Capacity 20 641 5/8 3120 4.32 1/8 1800 1.22 5/8 1200 0.4

Half Capacity 10 321 5/8 1560 1.22 1/8 900 0.32 5/8 600 0.1

System #2

Full Capacity 20 641 5/8 3120 4.32 1/8 1800 1.22 5/8 1200 0.4

Half Capacity 10 321 5/8 1560 1.22 1/8 1800 1.22 5/8 1200 0.4

HB600

System #1

Full Capacity 25 761 5/8 3384 4.52 1/8 1945 1.22 5/8 1500 0.6

Half Capacity 12.5 381 5/8 1710 1.42 1/8 983 0.42 5/8 750 0.2

System #2

Full Capacity 25 761 5/8 3384 4.52 1/8 1945 1.22 5/8 1500 0.6

Half Capacity 12.5 381 5/8 1710 1.42 1/8 983 0.42 5/8 750 0.2

106246-YIM-A-0105


TABLE 7: LIQUID LINES

Model DesignationNominal Capacity

(Tons)

Refrigerant Flow Rate (Lbs./Min.)

Copper Tubing (Inches, O.D.)

Refrigerant Liquid Velocity

(Ft./Min.)

Friction Loss (PSI/100 Ft.)

HA300 System #1 Full Capacity 25 805/8 500 14.27/8 265 3.4

1 1/8 156 1.0

HB360

System #1 Full Capacity 15 475/8 330 7.97/8 159 1.4

1 1/8 100 0.8


1 1/8 100 0.8

HB480


1 1/8 90 0.6


1 1/8 90 0.6

HB600


1 1/8 156 1.0


1 1/8 156 1.0

TABLE 8: R-22 LINE CHARGE*

LINE SET, O.D.† O.D., (INCHES) REFRIGERANT, LB/FTLIQUID 7/8 0.236

SUCTION1 5/8 0.0192 1/8 0.033

*. Charges based on 40ºF suction temperature and 105ºF liquid temperature.†. Type “L” copper tubing.

NOTE: Add the operating charge of the condensing unit, evaporator coil and 25 feet of interconnecting piping to any additional piping refrigerant charge required (determined from Table 8) for total system charge.

106246-YIM-A-0105


FIGURE 3 - FIELD WIRING DIAGRAM - HA 300 UNIT

Note 1

Note 1. See page 16 and 22 for details

on wiring HA/HB models to non LA/LB

indoor models.

106246-YIM-A-0105


FIGURE 4 - FIELD WIRING DIAGRAM - HB 360, 480, 600 UNITS

106246-YIM-A-0105


PIPING AND ELECTRICAL CONNECTIONS

Piping connections are made from the rear of the unit.Connections can be made directly to the suction andliquid piping or if so equipped to the optional suctionand liquid line service valves.

With the piping connections being made at the rear ofthe unit, piping can be routed to the unit from the left orright side.

Electrical connections for power and control wiring ismade from the front of the unit, left of the electrical con-trol box access. See Tables 10, 11 and 12 and Figures6 thru 10 for piping sizes and electrical knockoutdetails.

FIGURE 5 - HA/HB UNIT DIMENSIONS

E

D

A

FRONT

B

REAR

RIGHT

LEFT

C

F

G

H

TABLE 9: UNIT DIMENSIONS (INCHES)MODEL A B C D E F G H

HA300 110.5 88.5 37.5 32.8 31.0 46.1 37.1 23.6

HB360 110.5 88.5 37.5 32.8 31.0 46.1 37.1 23.6

HB480 128.5 88.5 37.5 41.8 40.0 46.1 37.1 23.6

HB600 128.5 88.5 57.7 41.8 40.0 46.1 37.1 23.6

106246-YIM-A-0105


FIGURE 6 - 25, 30 & 40 TON POWER AND CONTROL WIRING CONNECTIONS

Control Wiring

Power Wiring

FIGURE 7 - 50 TON POWER AND CONTROL WIRING CONNECTIONS

Control Wiring

Power Wiring

106246-YIM-A-0105


PIPING AND ELECTRICAL CONNECTION SIZES

TABLE 10: PIPING AND ELECTRICAL CONNECTION SIZES (25T) (INCHES)

CONNECTION ENTRY SIZE

SUCTION LINE SYS #1 1-5/8 OD

LIQUID LINE SYS #1 7/8 OD

POWER WIRING KNOCKOUT SEE TABLE 12

CONTROL WIRING 7/8 HOLE

TABLE 11: PIPING AND ELECTRICAL CONNECTION SIZES (30/40/50T) (INCHES)

CONNECTION ENTRY SIZE





POWER WIRING KNOCKOUT SEE TABLE 12

CONTROL WIRING 7/8 HOLE

TABLE 12: ELECTRICAL POWER KNOCKOUT SIZES (INCHES)

CONNECTION ENTRY 25T/230V 25T/460-575V 30-40-50T/230V 30-40-50T/460-575V

E POWER WIRING 2” 1-1/2” 2-1/2” 1-1/2”

FIGURE 8 - 25 TON PIPING CONNECTIONS

��

106246-YIM-A-0105


FIGURE 9 - 30 & 40 TON PIPING CONNECTIONS

Liquid (Sys 2)

Suction (Sys 2)

Liquid (Sys 1)Suction (Sys 1)

FIGURE 10 - 50 TON PIPING CONNECTIONS

106246-YIM-A-0105


START-UP

CRANKCASE HEATER

The crankcase heater must be energized at least 8hours before starting the compressor. To energize thecrankcase heater, the main disconnect switch must beclosed. During this 8 hour period, the system switch onthe room thermostat must be “OFF” to prevent thecompressor from starting. Make sure that the bottom ofthe compressor is warm to the touch to prove crank-case heater operation.

PRE-START CHECK

Before starting the unit, complete the following checklist:

1. Have sufficient clearances been provided?

2. Has all foreign matter been removed from the inte-rior of the unit (tools, construction or shippingmaterials, etc.)?

3. Have the condenser fans been rotated manually tocheck for free rotation?

4. Are all wiring connections tight?

5. Does the available power supply agree with thenameplate data on the unit?

6. Is the control circuit transformer set for the propervoltage?

7. Have the fuses, disconnect switch and power wirebeen sized properly?

8. Are all compressor hold-down nuts properlysecured?

9. Are any refrigerant lines touching each other or anysheet metal surface? Rubbing due to vibrationcould cause a refrigerant leak.

10. Are there any visible signs of a refrigerant leak,such as oil residue?

11. Is any electrical wire laying against a hot refrigerantline?

INITIAL START-UP

1. Supply power to the unit through the disconnectswitch at least 8 hours prior to starting the com-pressor.

2. Move the system switch on the thermostat to theAUTO or COOL position.

3. Reduce the setting of the room thermostat to ener-gize the compressor.

4. Check the operation of the evaporator unit per themanufacturer’s recommendations.

5. With an ammeter, check the compressor ampsagainst the unit data plate.

6. Check for refrigerant leaks.

7. Check for any abnormal noises and/or vibrations,and make the necessary adjustments to correct fanblade(s) touching shroud, refrigerant lines hittingon sheet metal, etc.

8. After the unit has been operating for several min-utes, shut off the main power supply at the discon-nect switch and inspect all factory wiringconnections and bolted surfaces for tightness.

OPERATION

NOTE: The timing intervals described in the followingprocedures are nominal. Some variations willnaturally occur due to differences in individualcomponents, or due to variations in ambienttemperature or line/control voltage. Refer tothe wiring labels inside of the unit controlaccess panel for additional information.

SEQUENCE OF OPERATION

OVERVIEW

These series of condensing units, come factoryequipped with Simplicity™ controls to monitor all unitfunctionality and safety controls.

Do not attempt to start the compressor withoutat least 8 hours of crankcase heat or compres-sor damage can occur.

106246-YIM-A-0105


SAFETY CONTROLS

The Simplicity™ control board incorporates features tomonitor safety circuits as well as minimize compressorwear and damage. An anti-short cycle delay (ASCD) isutilized to prevent operation of a compressor too soonafter its previous run. Additionally, a minimum run timeis imposed anytime a compressor is energized to allowproper oil return to the compressor. The ASCD is initi-ated on unit start-up and on any compressor reset orlockout.

The Simplicity™ control board monitors the followinginputs for each cooling system:

• A high-pressure switch is factory installed to pro-tect against excessive discharge pressure due to a blocked condenser coil or a condenser fan motor failure. During cooling operation, if a high-pressure limit switch opens, the Simplicity™ control board will de-energize the associated compressors and initiate the 5-minute ASCD. If the call for cool is still present at the end of the ASCD, the control board will re-energize the halted compressor.

• If a high-pressure switch opens three times within two hours of operation, the Simplicity™ control board will lockout the associated system compres-sors and will flash an error code (see Table 12).

• A low-pressure switch to protect the unit against excessively low suction pressure is standard on all condensing units.

If the low-pressure switch opens during normal opera-tion, the Simplicity™ control board will de-energize thecompressor, initiate the ASCD, and shut down the con-denser fans.

On startup, if the low-pressure switch opens, the Sim-plicity™ control board will monitor the low-pressureswitch to make sure it closes within one minute. If itfails to close, the unit will shut down the associatedcompressor and begin an ASCD. If the call for cool isstill present at the end of the anti-short cycle timedelay, the control board will re-energize the haltedcompressor.

If a low-pressure switch opens three times within onehour of operation, the Simplicity™ control board willlock-out the associated compressor and flash an errorcode (see Table 12).

An ambient air switch will lock out mechanical coolingat 40°F. In order to operate the unit in ambient temper-

atures below 40°F, the optional low ambient kit must befield installed which will allow the unit to operate duringconditions down to 0°F.

The refrigerant systems are independently monitoredand controlled. On any fault, only the associated sys-tem will be affected by any safety/preventive action.The other refrigerant system will continue to operateunless it is affected by the fault as well.

PUMP OUT

The pump out function is a standard feature on the 25to 50 ton systems. The pump out circuit is activatedeach time the first and third compressor stage is calledfor by the thermostat. As such, it’s a “Pump Out OnStart Up” design. A normally closed solenoid valve(POS1, 2, 3 or 4) is placed in the liquid line, just prior toexpansion valve.

When cooling is not being called for by the thermostat,the pump out solenoid (POS) is not energized, so it’s inthe closed position. When the Simplicity™ controlreceives a call for cooling, it energizes a compressor.With the POS being closed, it causes the pressure onthe low side of the system to begin falling.

When the low pressure switch (LPS) opens, the controlboard energizes its on-board pump out relay, providinga 24vac output to an external relay used to energizedthe pump out solenoid. The refrigeration circuit beingcontrolled is not in normal operating mode.

If the low pressure switch is already open on a call forcooling, the pump out relay is energized immediately. Ifthe LPS does not open after 5 minutes, the pump outrelay is energized.

CONTINUOUS BLOWER

By setting the room thermostat to “ON,” the supply airblower will operate continuously.

INTERMITTENT BLOWER

With the room thermostat fan switch set to “AUTO” andthe system switch set to either the “AUTO” or “HEAT”settings, the blower is energized whenever a cooling orheating operation is requested. The blower is ener-gized after any specified delay associated with theoperation.

When energized, the indoor blower has a minimum runtime of 30 seconds. Additionally, the indoor blower hasa delay of 10 seconds between operations.

106246-YIM-A-0105


COOLING SEQUENCE OF OPERATION

When the thermostat calls for the first stage of cooling,the low-voltage control circuit from the “R” to “Y1” and“G” is completed. The Simplicity™ control board acti-vates the first stage of cooling by energizing compres-sor one and both condenser fans of system one. Aftercompleting the specified fan on delay for cooling, theSimplicity™ control board will energize the indoorblower motor.

When the thermostat calls for the second stage of cool-ing, the low-voltage control circuit from “R” to “Y2” iscompleted. The control board will energize compressortwo.

If there is an initial call for both stages of cooling, theSimplicity™ control board will delay energizing com-pressor two by 30 seconds in order to avoid an exces-sive power rush.

When the thermostat calls for the third stage of cooling,the low-voltage control circuit from the “R” to “Y3” iscompleted. The Simplicity™ control board activates thethird stage of cooling by energizing compressor threeand both condenser fans of system two.

When the thermostat calls for the fourth stage of cool-ing, the low-voltage control circuit from “R” to “Y4” iscompleted. The control board will energize compressorfour.

Once the thermostat has been satisfied, theSimplicity™ control board will de-energize Y1, Y2, Y3and Y4. If the compressors have satisfied theirminimum run times, the compressors and condenserfans are de-energized. Otherwise, the unit operateseach cooling stage until the ASCD has elapsed. Uponthe completion of first stage cooling, the blower isstopped following the completion of the fan off delaycycle.

FLASH TIMES

The control will flash 1/4 second on and 1/4 second offfor error codes. Only the active alarms will be flashed.The control will separate the flash codes with a 2-sec-ond off delay between flash codes. Under normal oper-ation, the control will flash the LED at a rate of 1

second on and 1 second off. This will be the “HeartBeat”. Flash rates marked with an asterisk (*) are NOTalarms.

CONDENSER FAN OPERATION

These condensing units are factory equipped with fancycling switches to regulate system head pressure.When outdoor ambient conditions are cool, the headpressure of any air conditioning system may drop toolow for optimal performance. These condensing unitsmaximize system performance in a variety of ambientconditions by incorporating fan cycling switches tomaintain proper system head pressure.

On these condensing units, the condenser fans of agiven system are powered when compressor one isenergized. Fan one will start immediately upon a callfor first stage cooling. However, fan two is equippedwith a fan cycling switch and will not start until the sys-tem head pressure reaches 280 psig. Condenser fantwo will operate until the system head pressure dropsbelow 180 psig where the fan cycling switch will shutthe fan down. The unit will continue to operate con-denser fan one until the system head pressure reaches280 psig at which time condenser fan two will restart.

See Fan Orientation on page 24 Figure 11.

TABLE 13: STATUS LED FLASH RATE CHART

Flash Codes Description

On Steady This is a Control Failure1 Flash Not Applicable2 Flash Control Waiting ASCD*3 Flash HPS1 Compressor Lockout4 Flash HPS2 Compressor Lockout5 Flash LPS1 Compressor Lockout6 Flash LPS2 Compressor Lockout7 Flash FS1 Compressor Lockout8 Flash FS2 Compressor Lockout9 Flash 24 Volts not present at “limit” Terminal

10 Flash Compressor locked out on low outdoor tempera-ture*

11 Flash Not applicable on split systems.12 Flash Unit Locked out due to Fan Overload Switch Failure13 Flash Compressor Held Off due to low voltage14 Flash EEPROM Storage FailureOFF No Power Control or Failure

106246-YIM-A-0105


These 4-pipe condensing units can also be used withtwo appropriately sized indoor units. In this case, eachindoor unit will have it’s own thermostat. One thermo-stat will connect to “Y1” and “Y2” on the Simplicity™control board and the other will connect to “Y3” and“Y4”.

OPERATION WITH A TWO-STAGE THERMOSTAT

If the total system is to be controlled with a 2-stagethermostat (HA300):

1. Terminals Y1 and Y2 of the Simplicity™ controlboard controlling system one, should be connectedto stage one and two of the thermostat.

OPERATION WITH A FOUR-STAGE THERMOSTAT

If the total system is to be controlled with a 4-stagethermostat (HB360, HB480 and HB600):

1. Terminals Y1 and Y2 of the Simplicity™ controlboard controlling system one, should be connectedto stage one and two of the thermostat.

2. Terminals Y3 and Y4 of the Simplicity™ controlboard controlling system two, should be connectedto stage three and four of the thermostat.

SECURE OWNER'S APPROVAL

When the system is functioning properly, secure theowner's approval. Show him the location of all discon-nect switches and the thermostat. Teach him how tostart and stop the unit and how to adjust temperaturesettings within the limitations of the system.

MAINTENANCE

CLEANING CONDENSER SURFACE

Dirt should not be allowed to accumulate on the con-denser coils or other parts in the condenser air circuit.Clean as often as necessary with a brush, vacuumcleaner attachment or other suitable means.

LUBRICATION

These fan motors are equipped with factory lubricatedand sealed ball bearings. They do not require anymaintenance.

COMPRESSOR REPLACEMENT

Obtain replacement compressor or parts from yourlocal Distributor.

FIGURE 11 - FAN ORIENTATION CONTROL BOX END

106246-YIM-A-0105


FIGURE 12 - 25 TON CHARGING CHART

25-ton Charging Chart

100

150

200

250

300

350

400

60 70 80 90 100

Suction Pressure (PSI)

Dis

char

ge

Pre

ssu

re (P

SI)

Outdoor Temperature

115º

105º

95º

85º

75º

65º

1. Ensure all condenser fans are running when charging unit. One fan may shut down at lower ambient temperatures making the chart above

inaccurate.

2. This chart is applicable to the unit with the TXV's left to the factory setting. If the TXV's have been adjusted in the field, the chart above may no

longer apply.



100

150

200

250

300

350

400

60 70 80 90 100


Dis

char

ge

Pre

ssu

re (P

SI)

Outdoor Temperature

115º

105º

95º

85º

75º65º


inaccurate.


longer apply.

106246-YIM-A-0105




100

150

200

250

300

350

400

60 70 80 90 100


Dis

char

ge

Pre

ssu

re (P

SI)

Outdoor Temperature

115º

105º

95º

85º75º

65º


inaccurate.


longer apply.



100

150

200

250

300

350

400

60 70 80 90 100


Dis

char

ge

Pre

ssu

re (P

SI)

Outdoor Temperature

115º

105º

95º

85º

75º

65º


inaccurate.


longer apply.

106246-YIM-A-0105


FIGURE 16 - 25 TON CONDENSER UNIT WIRING DIAGRAM - 208/230-3-60

106246-YIM-A-0105


FIGURE 17 - 25 TON CONDENSER UNIT WIRING DIAGRAM - 460-3-60, 575-3-60

106246-YIM-A-0105


FIGURE 18 - 30 or 40 TON CONDENSING UNIT WIRING DIAGRAM - 208/230-3-60

106246-YIM-A-0105


FIGURE 19 - 30 or 40 TON CONDENSING UNIT WIRING DIAGRAM - 460-3-60, 575-3-60

106246-YIM-A-0105


FIGURE 20 - 50 TON CONDENSER UNIT WIRING DIAGRAM - 208/230-3-60

Subject to change without notice. Printed in U.S.A. 106246-YIM-A-0105Copyright © 2005 by Unitary Products Group. All rights reserved. Supersedes: 66338-YIM-C-0404/035-18499-000-C-0404

Unitary 5005 NormanProducts York OKGroup Drive 73069

FIGURE 21 - 50 TON CONDENSER UNIT WIRING DIAGRAM - 460-3-60, 575-3-60

installation manual split-system … installation manual ... you begin to install unit. save this...

Documents