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KRACK DLD Series, Operating And Installation Manual

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KRACK DLD Series Operating And Installation Manual Download Page 9

SLD/DLD/PLD AIR COOLED CONDENSING UNITS 

8 

 
 

SYSTEM 

CAPACITY 

BTU/H 

+20° F 

Equivalent Suction Line Length

 

-20° F 

Equivalent Suction Line Length

 

Liquid Line 

Receiver to Expansion Valve

 

25' 

50' 

75' 

100' 

25' 

50' 

75' 

100' 

25' 

50' 

75' 

100' 

R-22 

36,000 

7/8 

1 1/8 

1 1/8 

1 3/8 

1 1/8 

1 3/8 

1 3/8 

1 3/8 

3/8 

1/2 

1/2 

1/2 

42,000 

7/8 

1 1/8 

1 1/8 

1 1/8 

1 1/8 

1 3/8 

1 3/8 

1 5/8 

3/8 

1/2 

1/2 

1/2 

48,000 

7/8 

1 1/8 

1 1/8 

1 1/8 

1 1/8 

1 3/8 

1 3/8 

1 5/8 

1/2 

1/2 

1/2 

1/2 

54,000 

1 1/8 

1 1/8 

1 1/8 

1 3/8 

1 3/8 

1 3/8 

1 5/8 

1 5/8 

1/2 

1/2 

1/2 

1/2 

60,000 

1 1/8 

1 1/8 

1 1/8 

1 3/8 

1 3/8 

1 3/8 

1 5/8 

1 5/8 

1/2 

1/2 

1/2 

1/2 

66,000 

1 1/8 

1 1/8 

1 3/8 

1 3/8 

1 3/8 

1 5/8 

1 5/8 

1 5/8 

1/2 

1/2 

5/8 

5/8 

72,000 

1 1/8 

1 3/8 

1 3/8 

1 3/8 

1 3/8 

1 5/8 

1 5/8 

2 1/8 

1/2 

1/2 

5/8 

5/8 

78,000 

1 1/8 

1 3/8 

1 3/8 

1 3/8 

1 3/8 

1 5/8 

1 5/8 

2 1/8 

1/2 

1/2 

5/8 

5/8 

84,000 

1 1/8 

1 3/8 

1 3/8 

1 3/8 

1 3/8 

1 5/8 

2 1/8 

2 1/8 

1/2 

5/8 

5/8 

5/8 

90,000 

1 1/8 

1 3/8 

1 3/8 

1 5/8 

1 3/8 

1 5/8 

2 1/8 

2 1/8 

1/2 

5/8 

5/8 

5/8 

120,000 

1 3/8 

1 3/8 

1 5/8 

1 5/8 

1 5/8 

2 1/8 

2 1/8 

2 1/8 

5/8 

5/8 

5/8 

7/8 

150,000 

1 3/8 

1 5/8 

1 5/8 

2 1/8 

2 1/8 

2 1/8 

2 1/8 

2 5/8 

5/8 

7/8 

7/8 

7/8 

180,000 

1 3/8 

1 5/8 

1 5/8 

2 1/8 

2 1/8 

2 1/8 

2 5/8 

2 5/8 

5/8 

7/8 

7/8 

7/8 

210,000 

1 5/8 

2 1/8 

2 1/8 

2 1/8 

2 1/8 

2 5/8 

2 5/8 

2 5/8 

5/8 

7/8 

7/8 

7/8 

240,000 

1 5/8 

2 1/8 

2 1/8 

2 1/8 

2 1/8 

2 5/8 

2 5/8 

2 5/8 

5/8 

7/8 

7/8 

7/8 

300,000 

2 1/8 

2 1/8 

2 1/8 

2 5/8 

2 1/8 

2 5/8 

3 1/8 

3 1/8 

7/8 

7/8 

1 1/8 

1 1/8 

360,000 

2 1/8 

2 1/8 

2 5/8 

2 5/8 

2 5/8 

2 5/8 

3 1/8 

3 1/8 

7/8 

7/8 

1 1/8 

1 1/8 

480,000 

2 1/8 

2 5/8 

2 5/8 

2 5/8 

 

 

 

 

7/8 

1 1/8 

1 1/8 

1 1/8 

600,000 

2 1/8 

2 5/8 

3 1/8 

3 1/8 

 

 

 

 

7/8 

1 1/8 

1 1/8 

1 3/8 

720,000 

2 5/8 

3 1/8 

3 1/8 

3 1/8 

 

 

 

 

7/8 

1 1/8 

1 1/8 

l 3/8 

840,000 

2 5/8 

3 1/8 

3 1/8 

3 5/8 

 

 

 

 

1 1/8 

1 1/8 

1 3/8 

1 3/8 

960,000 

2 5/8 

3 1/8 

3 1/8 

3 5/8 

 

 

 

 

1 1/8 

1 3/8 

1 3/8 

1 3/8 

 
Line sizes which are shaded indicate the maximum suction line size which may be used for a riser.  In no case should the riser 
exceed the horizontal line size.  Properly placed suction traps must be used to insure proper oil return.

 

 
 
 
 
 
 
 
 
 
 
 

TABLE 1B 

RECOMMENDED LINE SIZES FOR R-404A and R-507

 

 
 

 

SUCTION LINE SIZE 

Summary of Contents for DLD Series

Page 1: ...ATION MANUAL INSTALLING INSTRUCTIONS SLD DLD PLD AIR COOLED CONDENSING UNITS SLD SERIES COND UNITS R 22 R 404A R 507 10 60 HP DLD SERIES COND UNITS R 22 R 404A R 507 7 50 HP CIRCUIT PLD SERIES COND UNITS R 22 R 404A R 507 14 100 HP ...

Page 2: ...I System Evacuation 5 IV Electrical 5 V Charging the System 5 VI Operation Checkout 5 VII Features and Controls 6 VIII Normal Maintenance 7 TABLES Table 1 Recommended Line Sizes 8 9 Table 2 Condensing Unit Refrigerant Charge 10 11 12 Table 3 Low Pressure Control Settings 13 Table 4 Fan Cycling Control Settings 13 ...

Page 3: ... 460 3 60 P 575 3 60 Levitor Condenser U 380 3 50 Compressor Manufacture Refrigerant B Bitzer Semi Hermetic 2 R22 C Carlyle Semi Hermetic 4 R404A D Copeland Discus 7 R507 I Ingersoll Rand Semi Hermetic V Copeland Screw Temperature H High Total HP M Medium 0100 10 HP w standard comp L Low 0101 10 HP w oversized comp 0700 2 35 HP w standard comp 0701 2 35 HP w oversized comp Large Condensing Unit Mo...

Page 4: ...air or restricting the free entry of air into the coil will result in reduced capacity and highpower consumption Take care to reduce such negative operation effects by providing for unrestricted free air flow into and from the unit At most the unit should not be positioned so as to have no more than one of its sides positioned close to a vertical building side or wall At that point this should be ...

Page 5: ... free rag before fabrication into the system Soft solders should be avoided wherever possible as in most cases they require the use of a flux Most of the low temperature solder flux consists of heavy wax type materials which if allowed to enter the system cause excessive service problems in the form of wax at expansion valves which looks like moisture but cannot be removed by the average dryer cor...

Page 6: ...e system When initially charging a system that is in a vacuum liquid refrigerant can be directly added into the receiver until the system pressure equalizes with pressure in the refrigerant cylinder Start the system and finish charging until the sight glass is clear Outdoor condensing units are furnished with a condenser flooding type of head pressure control valve for cold weather operation This ...

Page 7: ...ommended to pump the oil directly into the compressor against suction pressure Refrigerant oil should be purchased in sealed containers and should not be left open to atmosphere Exposure to air and moisture for extended periods will result in contamination of the oil and cause harmful reactions in the compressor Do not transfer oil from one container to another 2 HIGH AND LOW PRESSURE CONTROLS SLD...

Page 8: ... of the fan rotation 6 CONDENSER FAN CYCLING Pressure switches are included to cycle all but the first condenser fan s in response to head pressure See Table 4 for suggested pressure settings used on all multiple condenser fan systems 7 LOW AMBIENT FLOODING CONTROLS ARE STANDARD Condenser Liquid Flooding utilizes a field adjustable 100 to 225 psig condensate holdback valve Head pressure control va...

Page 9: ... 1 8 1 2 5 8 5 8 5 8 120 000 1 3 8 1 3 8 1 5 8 1 5 8 1 5 8 2 1 8 2 1 8 2 1 8 5 8 5 8 5 8 7 8 150 000 1 3 8 1 5 8 1 5 8 2 1 8 2 1 8 2 1 8 2 1 8 2 5 8 5 8 7 8 7 8 7 8 180 000 1 3 8 1 5 8 1 5 8 2 1 8 2 1 8 2 1 8 2 5 8 2 5 8 5 8 7 8 7 8 7 8 210 000 1 5 8 2 1 8 2 1 8 2 1 8 2 1 8 2 5 8 2 5 8 2 5 8 5 8 7 8 7 8 7 8 240 000 1 5 8 2 1 8 2 1 8 2 1 8 2 1 8 2 5 8 2 5 8 2 5 8 5 8 7 8 7 8 7 8 300 000 2 1 8 2 1 8...

Page 10: ...5 8 5 8 5 8 5 8 5 8 84 000 1 1 8 1 3 8 1 5 8 1 5 8 1 5 8 1 5 8 1 5 8 2 1 8 5 8 5 8 5 8 5 8 90 000 1 3 8 1 3 8 1 5 8 1 5 8 1 5 8 1 5 8 2 1 8 2 1 8 5 8 5 8 5 8 7 8 120 000 1 3 8 1 5 8 1 5 8 2 1 8 1 5 8 2 1 8 2 1 8 2 1 8 5 8 5 8 7 8 7 8 150 000 1 5 8 1 5 8 2 1 8 2 1 8 2 1 8 2 1 8 2 1 8 2 5 8 5 8 7 8 7 8 7 8 180 000 1 5 8 2 1 8 2 1 8 2 1 8 2 1 8 2 1 8 2 5 8 2 5 8 7 8 7 8 7 8 7 8 210 000 1 5 8 2 1 8 2 ...

Page 11: ... 258 4 SLD 0220 L2 R 22 31 6 47 5 51 8 54 1 55 2 57 1 SLD 0270 L2 R 22 36 9 60 3 66 6 70 0 71 5 74 1 SLD 0300 L2 R 22 36 9 60 3 66 6 70 0 71 5 74 1 SLD 151 L2 R 22 36 9 60 3 66 6 70 0 71 5 74 1 SLD 0221 L2 R 22 36 9 60 3 66 6 70 0 71 5 74 1 SLD 0271 L2 R 22 36 8 53 8 62 1 54 9 68 4 71 4 SLD 0301 L2 R 22 50 2 75 6 87 9 77 0 97 3 101 6 SLD 0150 M4 R 404A 27 9 33 4 40 2 44 2 45 7 48 1 SLD 0200 M4 R 4...

Page 12: ...0 6 67 1 69 5 73 4 DLD 0601 H2 R 22 55 7 63 9 82 7 92 4 95 9 101 7 DLD 0701 H2 R 22 80 4 91 5 116 6 129 7 134 5 142 2 DLD 0801 H2 R 22 90 8 95 9 126 1 145 9 152 3 164 1 DLD 1001 H2 R 22 117 9 122 3 147 4 176 9 1067 7 203 1 DLD 1201 H2 R 22 136 6 141 6 157 9 198 1 209 5 231 5 DLD 0440 L2 R 22 23 9 36 5 42 7 37 2 47 3 49 4 DLD 0540 L2 R 22 27 8 44 5 52 6 45 3 58 7 61 5 DLD 0600 L2 R 22 36 9 60 3 66 ...

Page 13: ...71 1 91 3 95 5 PLD 0540 L2 R 22 52 6 85 9 102 1 87 3 114 2 119 7 PLD 0600 L2 R 22 58 3 104 5 116 8 123 3 126 2 131 2 PLD 0441 L2 R 22 52 6 85 9 102 1 87 3 114 2 119 7 PLD 0541 L2 R 22 63 4 124 5 140 6 149 1 152 8 159 1 PLD 0601 L2 R 22 73 9 123 6 147 9 125 6 165 9 174 1 PLD 0500 M4 R 404A 70 8 75 7 91 9 106 8 112 5 121 0 PLD 0600 M4 R 404A 95 1 116 1 143 2 158 8 164 6 173 7 PLD 0700 M4 R 404A 85 7...

Page 14: ...ture at the condensing unit or the box design temperature whichever is lower Example 1 30 F minimum ambient 20 F freezer Use 20 F value from Table Example 2 10 F minimum ambient 35 F cooler Use 10 F value from Table TABLE 3B HIGH PRESSURE CONTROL SETTINGS R 22 400 Psig R 404A R 507 400 Psig TABLE 4 FAN CYCLING CONTROL SETTINGS Number of Fans Control Cut In Settings PSIG Single Row Double Row Refri...

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