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17

Table 5 – Cooling Charging Chart

SUCTION LINE TEMPERATURE (

°

F)

Suction Line Pressure (PSIG)

OD Temp.

(

°

F)

52

54

56

59

61

64

67

70

73

76

79

82

85

89

92

45

51

55

60

64

69

55

53

57

62

66

70

65

53

57

62

66

71

75

75

56

61

66

71

76

85

53

58

63

67

72

95

50

54

58

62

66

105

50

53

57

60

64

115

49

52

55

58

61

125

50

53

56

59

SUCTION LINE TEMPERATURE (

°

C)

Suction Line Pressure (kPa)

OD Temp.

(

°

C)

361

370

387

405

423

442

462

482

502

523

544

566

589

612

636

7

11

13

15

18

21

13

12

14

16

19

21

18

12

14

17

19

21

24

24

13

16

19

22

24

29

12

14

17

20

22

35

10

12

14

17

19

41

10

12

14

16

18

46

9

11

13

14

16

52

10

11

13

15

MAINTENANCE

To ensure continuing high performance, and to minimize the
possibility of premature equipment failure, periodic maintenance

must be performed on this equipment. This unit should be
inspected at least once each year by a qualified service person. To

troubleshoot unit, refer to Troubleshooting Chart in back of book.
NOTE TO EQUIPMENT OWNER: Consult your local dealer
about the availability of a maintenance contract.

PERSONAL

INJURY

AND

UNIT

DAMAGE

HAZARD

Failure to follow this warning could result in personal

injury or death and possible unit component damage.
The ability to properly perform maintenance on this

equipment requires certain expertise, mechanical skills,

tools and equipment. If you do not possess these, do not

attempt to perform any maintenance on this equipment,

other than those procedures recommended in the Owner’s

Manual.

!

WARNING

The minimum maintenance requirements for this equipment are as

follows:

1. Inspect air filter(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 cleanliness each

cooling season. Clean when necessary.

4. Check electrical connections for tightness and controls for

proper operation each cooling season. Service when

necessary.

5. Ensure electric wires are not in contact with refrigerant

tubing or sharp metal edges.

ELECTRICAL SHOCK HAZARD

Failure to follow these warnings could result in personal

injury or death:

1. Turn off electrical power to the unit before performing

any maintenance or service on this unit.

2. Use extreme caution when removing panels and parts.
3. Never place anything combustible either on or in contact

with the unit.

!

WARNING

Step 1 — Air Filter

IMPORTANT

: Never operate the unit without a suitable air filter

in the return--air duct system. Always replace the filter with the
same dimensional size and type as originally installed. See Table 1
for recommended filter sizes.
Inspect air filter(s) at least once each month and replace

(throwaway--type) or clean (cleanable--type) at least twice during
each cooling season and twice during the heating season, or

whenever the filter becomes clogged with dust and lint.

Step 2 — Unit Top Removal

NOTE

: When performing maintenance or service procedures that

require removal of the unit top, be sure to perform all of the routine
maintenance procedures that require top removal, including coil
inspection and cleaning, and condensate drain pan inspection and
cleaning.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal

injury or death.
Disconnect and tag electrical power to the unit before

removing top.

!

WARNING

664B

Summary of Contents for 664B

Page 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...

Page 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...

Page 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...

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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

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

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

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

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

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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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