background image

5

TOP COVER

INDOOR
THERMOSTAT

DISCONNECT
PER NEC
(UNIT AND
ELECTRIC
HEATER)

FROM
POWER
SOURCE

RETURN
AIR

POWER AND
LOW-VOLTAGE
ENTRY

COMPOSITE
RUST-PROOF
BASEPAN

CONDENSATE
DRAIN
CONNECTION

Power Wiring

Control Wiring

Condenser Airflow

Evaporator Airflow

A08207

Fig. 6 -- Typical Installation

Table 1 – Physical Data

UNIT SIZE

024

030

036

042

048

060

NOMINAL CAPACITY (ton)

2

2--1/2

3

3--1/2

4

5

OPERATING WEIGHT (lb)

(kg)

293

133

324

147

377

171

389

176

384

174

433

196

COMPRESSOR

Scroll

Ultra Tech Scroll

REFRIGERANT (R--22)

Quantity (lb)

(kg)

7.5

3.4

10.3

4.7

10.3

4.7

11.9

5.4

11.4

5.2

13.3

6.0

REFRIGERANT METERING DEVICE

AccuRater

®

TXV

Orifice ID (in.)

0.067

0.067

0.082

0.086

Orifice OD (in.)

0.049

0.057

0.059

0.063

0.070

0.073

CONDENSER COIL

Copper Tubes, Aluminum Plate Fins

Rows

Fins/in.

2

21

2

21

2

21

2

21

2

21

2

21

Face Area (sq. ft.)

11.1

12.7

15.8

15.8

13.3

15.8

CONDENSER FAN

Propeller

Nominal Cfm

2600

2600

3200

3200

3200

3300

Diameter (in.)

(mm)

20

508

20

508

20

508

20

508

20

508

20

508

Motor HP (RPM)

1/8 (825)

1/8 (825)

1/4 (1100)

1/4 (1100)

1/4 (1100)

1/2 (1100)

EVAPORATOR COIL

Copper Tubes, Aluminum Plate Fins

Rows

Fins/in.

3

17

3

17

4

17

4

17

4

17

4

17

Face Area (sq. ft.)

4.3

4.9

4.9

6.1

4.9

6.1

Evaporator blower

Direct Drive

Nominal Airflow (Cfm)

800

1000

1200

1400

1600

1875

Size (in.)

(mm)

10x8

254 x 203

11x9

279 x 229

11x10

279 x 254

Motor HP (RPM)

1/2 (1050)

1/2 (1050)

3/4 (1050)

3/4 (1050)

1 (1050)

1 (1050)

CONNECTING DUCT SIZES

Round

Supply Air (in.)

(mm)

14

356

Return Air (in.)

(mm)

14

356

Return--Air Filters* Throwaway (in.)

(mm)

24 x 24

610 x 610

24 x 30

610 x 762

30 x 30

762 x 762

*Required filter sizes shown are based on the ARI (Air conditioning & Refrigeration Institute) rated airflow at a velocity of 300 ft/min (91 m) for throwaway type or

450 ft/min (137 m) for high capacity type. Recommended filters are 1---in. (25 mm) thick.

664B

Содержание 664B

Страница 1: ...ires 6 Accessory Electric Heat Wiring 6 PRE START UP 7 START UP 8 17 Check for Refrigerant Leaks 8 Start Up Cooling and Make Adjustments 8 Checking Cooling and Heating Control Operation 8 Refrigerant...

Страница 2: ...iginal packages until installation Step 2 Provide Unit Support For hurricane tie downs contact distributor for details and PE Professional Engineering Certificate if required SLAB MOUNT Place the unit...

Страница 3: ...CONFIGURING UNITS FOR DOWNFLOW VERTICAL DISCHARGE ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death Before performing service or maintenance operations on...

Страница 4: ...4 A08414 Fig 5 Unit Base Dimensions 664B024 060 664B...

Страница 5: ...2 21 2 21 Face Area sq ft 11 1 12 7 15 8 15 8 13 3 15 8 CONDENSER FAN Propeller Nominal Cfm 2600 2600 3200 3200 3200 3300 Diameter in mm 20 508 20 508 20 508 20 508 20 508 20 508 Motor HP RPM 1 8 825...

Страница 6: ...e unit must have a separate electrical service with a field supplied waterproof disconnect switch mounted at or within sight from the unit Refer to the unit rating plate NEC and local codes for maximu...

Страница 7: ...erant system is under pressure 4 Do not use torch to remove any component System contains oil and refrigerant under pressure 5 To remove a component wear protective goggles and proceed as follows a Sh...

Страница 8: ...mperature Observe that heating cycle shuts down when control setting is satisfied 4 When using an automatic changeover room thermostat place both SYSTEM and FAN switches in AUTO positions Observe that...

Страница 9: ...change motor speeds reposition wire at fan motor speed terminals labeled 1 2 3 4 refer to Fig 12 Remove the speed tap connector labeled 1 through 5 on the motor While looking at the connector end that...

Страница 10: ...r a 5 minute time delay in case of an initial start up starting the compressor low stage and the outdoor fan motor If the low stage operation cannot satisfy the cooling demand the second stage cooling...

Страница 11: ...11 A08209 Fig 13 Typical Single Phase Unit Electrical Diagram Sizes 024 042 664B...

Страница 12: ...12 A06405 Fig 14 Typical Single Phase Unit Electrical Diagram Sizes 048 060 664B...

Страница 13: ...13 A06325 Fig 15 Typical Three Phase Unit Electrical Diagram Sizes 030 042 664B...

Страница 14: ...14 A06326 Fig 16 Typical Three Phase Unit Electrical Diagram Sizes 048 060 664B...

Страница 15: ...15 A05209 Fig 17 Single Phase Accessory Electric Heater Wiring A06327 Fig 18 Three Phase Accessory Electric Heater Wiring 664B...

Страница 16: ...6 289 CFM 1164 1122 1066 1025 954 906 3 Watts 386 398 409 418 425 435 438 441 451 CFM 1680 1652 1625 1583 1555 1515 1477 1444 1403 4 Watts 440 448 457 462 469 477 480 485 486 CFM 1745 1717 1684 1651 1...

Страница 17: ...ter s each month Clean or replace when necessary 2 Inspect indoor coil drain pan and condensate drain each cooling season for cleanliness Clean when necessary 3 Inspect blower motor and wheel for clea...

Страница 18: ...from the hub of the wheel d Remove the filler panel at the discharge end of the blower housing by removing the two screws that fasten it to the housing e Remove the wheel form the housing 3 Remove the...

Страница 19: ...ned connections are noticed disassemble the connection clean all the parts re strip the wire end and reassemble the connection properly and securely Check to ensure no wires are touching refrigerant t...

Страница 20: ...back to the compressor C95045 Fig 20 Typical Heat Pump Operation Heating Mode STRAINER ACCUMULATOR COMPRESSOR STRAINER LCS OUTDOOR COIL INDOOR COIL A B D C Check Valves A Closed B Open C Closed D Ope...

Страница 21: ...line voltage Determine cause and correct Blocked outdoor coil Determine cause and correct Defective run start capacitor overload or start relay Determine cause and replace Faulty outdoor fan motor or...

Страница 22: ...r Temperature __________ DB ____________WB Return Air Temperature __________ DB __________ WB Cooling Supply Air __________DB___________WB PRESSURES Cooling Mode Refrigerant Suction __________ psig Su...

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