Heatcraft Refrigeration Products none Electronic Fan Cycling Thermostat Settings, Pressure Chart

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Table 5. Electronic Fan Cycling Thermostat Settings *

Number of Fans

A350

 

 

S350 Temperature Stage Modules

 

Single

Double

Design

Set

 

 

Offset Settings

 

 

Row

Rows

T.D.

Point

2

 

3

 

4

5

 

.

30

60

 

 

 

 

 

 

 

.

25

65

 

 

 

 

 

 

2

4

20

70

 

 

 

 

 

 

 

.

15

75

 

 

 

 

 

 

 

.

10

80

 

 

 

 

 

 

 

.

30

60

20

 

 

 

 

 

 

.

25

65

10

 

 

 

 

 

3

6

20

70

10

 

 

 

 

 

 

.

15

75

10

 

 

 

 

 

 

.

10

80

15

 

 

 

 

 

 

.

30

60

10

 

30

 

 

 

 

.

25

65

10

 

25

 

 

 

4

8

20

70

5

 

20

 

 

 

 

.

15

75

5

 

15

 

 

 

 

.

10

80

5

 

10

 

 

 

 

.

30

60

5

 

15

 

30

 

 

.

25

65

5

 

15

 

30

 

5

10

20

70

5

 

10

 

30

 

 

.

15

75

5

 

10

 

20

 

 

.

10

80

5

 

10

 

15

 

 

.

30

55

5

 

15

 

25

30

 

.

25

65

5

 

10

 

20

30

6 / 7

12 / 14

20

70

5

 

10

 

20

30

 

.

15

75

5

 

10

 

15

25

 

.

10

80

5

 

10

 

15

20

 

 

 

 

 

 

 

 

 

 

* Johnson Controls Style S350 operation..

5° differential set on all modules. .All modules set in the“heating” mode..

Table 6. Pressure Chart

Number of Fans

 

 

 

 

Control Settings

 

 

Single

Double

Design

 

 

Pressure Switch Cut-In Settings

 

Row

Rows

T.D.

Refrigerant

 

 

 

 

 

 

 

PC1

PC2

 

PC3

 

PC4

PC5

 

.

.

R134a

147

 

 

 

 

 

 

2

4

20

R22

215

 

 

 

 

 

 

 

.

.

R404A

220

 

 

 

 

 

 

 

.

.

R134a

147

155

 

 

 

 

 

3

6

20

R22

215

245

 

 

 

 

 

 

.

.

R404A

220

247

 

 

 

 

 

 

.

.

R134a

147

155

 

160

 

 

 

4

8

20

R22

215

231

 

247

 

 

 

 

.

.

R404A

220

238

 

255

 

 

 

 

.

.

R134a

147

153

 

156

 

160

 

5

10

20

R22

215

225

 

236

 

247

 

 

.

.

R404A

220

238

 

250

 

260

 

 

.

.

R134a

147

150

 

153

 

157

160

6 / 7

12 / 14

20

R22

215

223

 

230

 

239

247

 

.

.

R404A

220

238

 

245

 

255

265

Based on 20º T..D..;

For (R404A/R507) set cutout 35 PSIG below cut-in; for (R134A) set cutout 25 PSIG below cut-in.. Fan on header end to remain on whenever compressor is operating..

11

Image 11
Contents Air-Cooled Condensers Installation Operation Guide Sound Vibration System WarrantyInstallation InspectionDrawing 1. Rigging Instructions Units in Pits Space and Location RequirementsWalls or Obstructions Multiple UnitsTypical Arrangements Installation, Refrigerant PipingTons of Refrigeration Electrical WiringCondensing Temperature Correction Factor Discharge LinesPage Winter Operation Head Pressure Control Fan CyclingDischarge Gas Pulsation Splitting Controls Fan Cycling Head Pressure ControlsFlooding Head Pressure Controls Variable SpeedMinimum Ambient for Fan Cycling Mechanical Fan Cycling Thermostat SettingsPressure Chart Electronic Fan Cycling Thermostat SettingsModel Summer Charge Refrigerant Charge. Lbs. R-22 for Flooded CondenserModel Cross Reference MaintenanceCleaning Instructions Flooded Charge Temperature Difference FactorFan Motor Part InterLink Condenser Parts ListIn-Warranty Return Material Procedure Parts by InterLinkBe sure that the unit is isolated Speed Adjustment CharacteristicsExternal Control Signal Series Motors with Integrated Variable SpeedThrottling range Reverse acting or direct acting mode of operationHead Pressure Setpoint Minimum OutputEC Motor Wiring Master/Slave ConfigurationProtective Features Phase failureFAN 1 Header FAN FAN Motor Identification Installation Check List

none specifications

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