Heatcraft Refrigeration Products Air-Cooled Condensers none User Manual

Table of ContentsAir-Cooled CondensersInstallation and Operation GuideInspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

10Table 3. Minimum Ambient for Fan Cycling Number of Fans Single Double Design T.D.* Row Row 30 25 20 15 10 2 4 35 4

11 Table 5. Electronic Fan Cycling Thermostat Settings * Number of Fans A350 S350 Temperature Stage Modules Single

12 Table 7. Refrigerant Charge for Fan Cycling plus Flooded Condenser (lbs. R-22)Model*SummerCharge25° TD 20° TD 15° TD 10° TD40°F 20°F 0°F -20°F 40°

13Table 9. Flooded Charge Temperature Dierence FactorAmbient, °FDesign T.D.30 25 20 15 10+60 – 0.38 1.0 1.74 2.46+40 0.59 0.80 1.0 1.19 1.40+20 0.76

14Fan RPM Motor HPFan Motor Part No.Fan Blade Part No.Fan GuardPart No.1140 (H Models) 1.525316401 22900401 231057011140 (Var. Speed) 0.7525317101 229

15E Series Motors with Integrated Variable SpeedE Series units use an EC motor/fan blade combination to provide variable speed condenser control. All

16Head Pressure SetpointThe head pressure setpoint potentiometer is adjustable from 90-250 psig. A typical setpoints are from 170-200 psig. Note: V

17Master/Slave CongurationThe EC motor control signals are wired in a Master/Slave conguration. This conguration allows for the maximum sound and

18TYPICAL 1X4 EC MOTOR WIRINGWITH 0-10V DC CONTROL SIGNALRS BRS A12 114-20mA0-10VGNDRS ARS BPWM0-10VPWM+20V+10VOUTGNDNCCOMNOL2L3L1PEKL310 9 78 6 5 34

19NOTE:1. UNIT MUST BE GROUNDED.2. TO BE FIELD FUSED, REFER TO UNIT DATAPLATE FOR VOLTAGE.3. ALL MOTORS ARE INHERENTLY PROTECTED.4. USE 60°C WIRE.5. R

2© 2008, Heatcraft Refrigeration Products LLCInspection Responsibility should be assigned to a dependable individual at the job site to receive mater

20Installation Check ListSince product improvement is a continuing eort, we reserve the right to make changes in specications without notice.CLIMATE

3Drawing 1. Rigging Instructions

4Space and Location RequirementsThe most important consideration which must be taken into account when deciding upon the location of air-cooled equipm

5Typical ArrangementsFigure 1 illustrates a typical piping arrangement involving a remote condenser located at a higher elevation, as commonly encount

6Electrical Wiring The electrical installation should be in accordance with National Electrical Code, local codes and regulations. Proper overcurrent

7Diagram 1. Typical Condenser Wiring Diagram with Fan Cycle Controls

8Start-Up Check for proper fan rotation. Air is drawn through the coil on all units. Be sure the fans turn freely. Rotation of the motors and blad

9Fan Cycling Head Pressure Controls Condenser fans are cycled to maintain adequate head pressure. Ambient and pressure fan cycling are available as o