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SUBCOOLING CHART - 50ZPM - SIZE 60

75(24) 85(29)

95(35) 105(41) 115(46)

60

15(8.3) 15(8.3)

15(8.3) 14(7.8) 14(7.8)

5

10

15

20

25

3

6

8

11

14

189

61

56

51

46

41

1303

16

13

11

8

5

196

63

58

53

48

43

1351

17

15

12

9

6

203

66

61

56

51

46

1399

19

16

13

10

8

210

68

63

58

53

48

1448

20

17

14

11

9

217

70

65

60

55

50

1496

21

18

15

13

10

224

72

67

62

57

52

1544

22

19

16

14

11

231

74

69

64

59

54

1593

23

20

18

15

12

238

76

71

66

61

56

1641

24

21

19

16

13

245

77

72

67

62

57

1689

25

22

20

17

14

252

79

74

69

64

59

1737

26

23

21

18

15

260

81

76

71

66

61

1792

27

25

22

19

16

268

83

78

73

68

63

1848

29

26

23

20

17

276

85

80

75

70

65

1903

30

27

24

21

19

284

87

82

77

72

67

1958

31

28

25

22

20

292

89

84

79

74

69

2013

32

29

26

23

21

300

91

86

81

76

71

2068

33

30

27

24

22

309

93

88

83

78

73

2130

34

31

28

26

23

318

95

90

85

80

75

2192

35

32

29

27

24

327

97

92

87

82

77

2254

36

33

31

28

25

336

99

94

89

84

79

2316

37

34

32

29

26

345

101

96

91

86

81

2378

38

35

33

30

27

354

103

98

93

88

83

2440

39

36

34

31

28

364

105

100

95

90

85

2509

40

38

35

32

29

374

107

102

97

92

87

2578

41

39

36

33

30

384

108

103

98

93

88

2647

42

40

37

34

31

394

110

105

100

95

90

2716

44

41

38

35

32

404

112

107

102

97

92

2785

45

42

39

36

33

414

114

109

104

99

94

2854

46

43

40

37

34

424

116

111

106

101

96

2923

47

44

41

38

35

434

118

113

108

103

98

2992

48

45

42

39

36

444

119

114

109

104

99

3061

48

46

43

40

37

454

121

116

111

106

101

3130

49

47

44

41

38

464

123

118

113

108

103

3199

50

48

45

42

39

474

124

119

114

109

104

3268

51

48

46

43

40

484

126

121

116

111

106

3337

52

49

47

44

41

494

127

122

117

112

107

3406

53

50

47

45

42

504

129

124

119

114

109

3475

54

51

48

46

43

514

131

126

121

116

111

3544

55

52

49

46

44

524

132

127

122

117

112

3612

56

53

50

47

45

534

134

129

124

119

114

3681

56

54

51

48

45

Required Subcooling °F(°C)

Required Subcooling °C

50ZPM 

Size

Pressure 

(psig)

Pressure 

(kpa)

Required Subcooling °F

Required Liquid Line Temperature for a Specific 

Subcooling (R-410A)

Required Liquid Line Temperature for a Specific 

Subcooling (R-410A)

Outdoor Ambient Temperature °F(°C)

Page 24

Summary of Contents for 50ZPM

Page 1: ...hese units can be placed on the side of a building or can be placed on a roof without roof curbs Each unit is designed to occupy a minimal space Piping and drain connections are readily accessible The...

Page 2: ...5 Connect Condensate Drain 9 Step 6 Install Electrical Connections 10 PRE START UP 12 START UP 13 Step 1 Check for Refrigerant Leaks 13 Step 2 Start Up Cooling and Make Adjustments 13 Step 3 Refriger...

Page 3: ...NING signifies hazards which could result in personal injury or death CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage NOTE is used...

Page 4: ...systems Do not use R 22 service equipment or components on Puron refrigerant equipment WARNING PERSONAL INJURY AND ENVIRONMENTAL HAZARD Failure to follow this warning could cause personal injury deat...

Page 5: ...ded 3 1 24 x 36 x 1 Evaporator Fan and Motor Section Fan Quantity Fan Size Diam x L in 12 0 x 10 5 Fan Type Drive Type Motor Type Indoor Motor Factory Speed Setting Low Motor Quantity Maximum HP Maxim...

Page 6: ...ct Opening Center of Gravity mm LBS KG A B C X Y Z 36 279 127 30 12 765 14 0 357 7 13 7 348 14 356 19 483 14 0 356 48 305 139 34 13 867 19 9 506 14 13 9 354 14 356 19 483 16 0 406 60 352 160 42 13 107...

Page 7: ...IVING AND INSTALLATION Step 1 Check Equipment IDENTIFY UNIT The unit model number and serial number are printed on the unit informative plate Check this information against shipping papers INSPECT SHI...

Page 8: ...runoff levels Do not use unit if it has been under water Step 4 Select and Install Ductwork The design and installation of the duct system must be in accordance with the standards of the NFPA for ins...

Page 9: ...ur L brackets are factory installed Supply air duct Two L brackets 9 7 in x 15 5 in Return air duct Two L brackets 14 in x 20 in Fig 2 Factory Installed Duct Flanges Table 1 Minimum Airflow for Safe E...

Page 10: ...d at a slope of at least 1 in 25 4 mm for every 10 ft 3 m of horizontal run Be sure to check the drain tube for leaks Prime trap at the beginning of the cooling season start up Allowable glues for con...

Page 11: ...ads and unit power leads as shown in Fig 7 and Fig 8 Route thermostat wires through grommet providing a drip loop at the panel Connect low voltage leads to the thermostat as shown in Fig 8 The unit tr...

Page 12: ...s have been removed Fig 8 Control Connections Caution FIRE EXPLOSION ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death and or property damage 1 Follow rec...

Page 13: ...own when control setting is satisfied 4 When using an automatic changeover room thermostat place both SYSTEM and FAN switches in AUTO positions Observe that unit operates in Cooling mode when temperat...

Page 14: ...e value Step 4 Indoor Airflow and Airflow Adjustments Table 2 shows wet coil air delivery for horizontal discharge units Table 3 and Table 4 show pressure drops NOTE Be sure that all supply and return...

Page 15: ...1521 1479 1445 1398 1357 2 1729 1740 1702 1670 1626 1585 1548 1508 1467 1424 3 1955 1976 1936 1904 1855 1820 1787 1748 1704 1666 60 1 1773 1727 1671 1624 1571 1510 1437 1383 1336 1273 2 1844 1798 174...

Page 16: ...qualified service personnel should perform maintenance and service procedures that require unit top removal Refer to the following top removal procedures 1 Unplug all three wires from the outdoor fan...

Page 17: ...se and oil with a mild solvent 6 Reassemble a Slip the wheel back in the housing with the hub set screw parented in the correct direction b Install the filler panel c Reinsert the motor assembly in th...

Page 18: ...s If the drain trough is restricted clear it with a plumbers snake or similar probe device Outdoor Fan Adjustment 1 Shut off unit power supply and install lockout tag 2 Remove outdoor fan assembly gr...

Page 19: ...650 psig 4482 kPA Low Pressure Switch The low pressure switch is located in the suction line and protects against low evaporator coil pressure It opens at 54 psig 372 kPA To check switches 1 Turn off...

Page 20: ...gerant components such as filter drier pressure switch metering device coil accumulator or reversing valve Synthetic Roof Precautionary Procedure 1 Cover extended roof working area with an impermeable...

Page 21: ...36 48 4 5 1 3 1 4 8 5 67 1 1 3 1 4 1 FLA Full Load Amps RLA Rated Load Amps LRA Locked Rotor Amps APP Application power at rated power supply voltage MCA Minimum Circuit Amps MOCP Maximum Overcurrent...

Page 22: ...TYPICAL WIRING SCHEMATIC 50ZPM 400V 50Hz Page 22...

Page 23: ...3 3 41 5 0 43 6 1 45 7 2 47 8 3 49 9 4 51 11 53 12 55 13 57 14 8 4 4 43 6 1 45 7 2 47 8 3 49 9 4 51 11 53 12 55 13 57 14 59 15 10 5 6 45 7 2 47 8 3 49 9 4 51 11 53 12 55 13 57 14 59 15 61 16 12 6 7 47...

Page 24: ...6 81 2378 38 35 33 30 27 354 103 98 93 88 83 2440 39 36 34 31 28 364 105 100 95 90 85 2509 40 38 35 32 29 374 107 102 97 92 87 2578 41 39 36 33 30 384 108 103 98 93 88 2647 42 40 37 34 31 394 110 105...

Page 25: ...line filter driers with rated working pressures less than 600 psig Do not leave R 410A refrigerant suction line filter driers in line longer than 72 hours Do not install a suction line filter drier in...

Page 26: ...e leak repair and recharge Air in system Recover refrigerant evacuate system and recharge Condenser coil dirty or restricted Clean coil or remove restriction Dirty drier filter Replace filter Dirty co...

Page 27: ...unit installation is level Check fan wheel and propeller for location in housing orifice and setscrew tightness III START UP ELECTRICAL SUPPLY VOLTAGE ______________________________________ COMPRESSO...

Page 28: ...to discontinue or change at any time specifications or designs without notice and without incurring any obligations Supersedes Version 50ZPM IOM 50HZ 01 Catalog Number 50ZPM IOM 50HZ 02 Effective Dat...

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