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Heatcraft Refrigeration Products none manual

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Table of contents for the manual

  • Page 1

    T able of C onten ts Air-C ooled C ondensers Installation and Opera tion Guide I n s p e c t i o n .............................................. 2 System W arranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 I n s t a l l a t i o n ............................................. 2 U n i t L o c a t i o n .......[...]

  • Page 2

    2 © 2008, Heatcraft Refrigeration Products LL C Inspection Responsibility should be assigned to a dependable individual at the job site to rec eive material. Each shipment should be car efully checked against the bill of lading. The shipping receipt should not be signed until all items listed on the bill of lading ha ve been accounted f or . Check[...]

  • Page 3

    3 Drawing 1. Rigging Instructions[...]

  • Page 4

    4 Space and Location Requir ements The most important consideration which must be taken into account when deciding upon the loca tion of air-cooled equipment is the provision f or a supply of ambient air to the condenser , and removal of heated air fr om the condenser area. Where this essential r equirement is not adhered to , it will result in hig[...]

  • Page 5

    5 T ypical Arrangements Figur e 1 illustrates a typical piping arrangement inv olving a remote condenser locat ed at a higher elevation, as commonly encountered when the condenser is on a r oof and the compressor and receiver ar e on grade level or in a basement equipment room. In this case, the design of the discharge line is very critical. If pro[...]

  • Page 6

    6 Electric al Wiring The electrical installation should be in accordance with National Electrical Code, local codes and regulations . Proper o vercurrent protection should be provided f or the fan motors. All standard motors hav e internal inherent ov erload protectors. Theref ore, contactors can be used instead of starters requiring thermal protec[...]

  • Page 7

    7 Diagram 1. T ypical Condenser Wiring Diagram with F an C ycle Contr ols[...]

  • Page 8

    8 Start-Up Check for proper fan r otation. Air is drawn through the c oil on all units. Be sure the fans turn freely . Rotation of the motors and blades should be in a “CW ” direction looking at the unit from the blade side. On three phase units , it may be necessary to reverse two of the three po wer leads to the unit. NO TE: The manifold asse[...]

  • Page 9

    9 F an C ycling Head Pr essure C ontrols Condenser fans are cycled to maintain adequat e head pressure. Ambient and pressure fan cycling ar e available as optional equipment. Ambient fan cycling cycles fans in response to the ambient air temperature . This control is ideal for multi-circuited condensers or for systems oper ating in mild ambient con[...]

  • Page 10

    10 T able 3. Minimum Ambient for F an Cy cling Number of F ans Single Double Design T .D.* Row Row 30 25 20 15 10 2 4 35 45 55 60 70 3 6 15 30 40 55 65 4 8 0 15 30 45 60 5 10 0 10 20 35 55 6 / 7 12 / 14 0 0 10 30 50 * Based on maintaining 90°F minimum condensing tempera ture. T able 4. Mechanical F an C ycling Thermostat Settings Number of Fans Si[...]

  • Page 11

    11 T able 5. Elec tronic F an C ycling Thermostat Settings * Number of F ans A350 S350 T emperature Stage Modules Single Double Design Set Oset 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 [...]

  • Page 12

    12 T able 7. Refrigerant Char ge for F an Cy cling plus Flooded Condenser (lbs. R-22) Model* Summer Charge 25° TD 20° TD 15° TD 10° TD 40°F 20°F 0°F -20°F 40°F 20°F 0°F -20°F 40°F 20°F 0°F -20°F 40°F 20°F 0°F -20°F 1 8 7 8 9 9 8 9 10 10 9 10 11 11 13 12 12 12 2 10 9 12 13 14 11 13 14 15 13 14 15 16 17 18 17 18 3 10 1 6 8 10 4 8 [...]

  • Page 13

    13 T able 9. Flooded Charge T emperature Dier ence F ac tor Ambient, °F Design 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 0.88 1.0 1.13 1.25 0 0.84 0.91 1.0 1.07 1.16 -20 0.88 0.93 1.0 1.05 1.13 T able 10. Model Cross Reference Model Reference *NH *NL *NX *NQ *NE 1 *NH-S01-A007 *NL -S01-A007 *NX-S01-A00[...]

  • Page 14

    14 F an RPM Motor HP F an Motor Part No . F an Blade Part No . F an Guard Part No . 1140 (H Models) 1.5 25316401 22900401 23105701 1140 ( Var . Speed) 0.75 25317101 2292625 23105701 830 (L Models) 1.5 25316601 22929501 23105701 830 (X Models) 1 25316301 22929501 23105701 540 (Q Models) 0.5 25316201 22929301 23105701 1030 (E Models, 230V ) 2.2 kW 25[...]

  • Page 15

    15 E Series Motors with Integra ted V ariable Speed E Series units use an EC motor/fan blade combination to pro vide variable speed condenser control . All components requir ed to run the motor at variable speeds ar e built into the motor . Speed Adjustment Char acteristics The EC motor varies it’ s speed linearly based on a 0-10V input signal. A[...]

  • Page 16

    16 Head Pressur e Setpoint The head pressur e setpoint potentiometer is adjustable from 90-250 psig . A typical setpoints are from 170-200 psig. Note: Very low setpoints may cause the fan motors t o run full speed continually if the condenser is not pr operly sized. The fans will turn o if the system pr essure falls below the desired setpoint. M[...]

  • Page 17

    17 Master/Slav e Conguration The EC motor contr ol signals are wir ed in a Master/ Slave c onguration. This conguration allows f or the maximum sound and energy reduction as well as the most stable head pressure c ontrol. The contr ol signal is delivered t o the master motor (located at the header end of the unit). The master motor relay s[...]

  • Page 18

    18 TYPICAL 1X4 EC MOT OR WIRING WITH 0-10V DC CONTROL SIGNAL RS B RS A 12 11 4-20mA 0-10V GND RS A RS B PWM 0-10V PWM +20V +10V OUT GND NC COM NO L2 L3 L1 PE KL3 10 9 7 8 6 5 3 4 2 1 1 3 2 KL2 2 3 1 KL1 PE BLK RED RS B RS A 12 11 4-20mA 0-10V GND RS A RS B PWM 0-10V PWM +20V +10V OUT GND NC COM NO L2 L3 L1 PE KL3 10 9 7 8 6 5 3 4 2 1 1 3 2 KL2 2 3 [...]

  • Page 19

    19 NOTE: 1. UNIT MUST BE GROUNDED. 2. TO BE FIELD FUSED, REFER TO UNIT DA T APLATE FOR VOL TA GE. 3. ALL MOTORS ARE INHERENTL Y PROTECTED. 4. USE 60°C WIRE. 5. REFER TO LABEL ADJACENT FUSE HOLDER FOR REPLACEMENT . USE COPPER CONDUCT ORS ONL Y FIELD WIRING F ACTORY WIRING C F AN CONT ACTOR M F AN MOTOR F FUSES R RELA Y FCC F AN CYCLE CONTROL (MA Y [...]

  • Page 20

    20 Installation Check List Since product improv ement is a continuing eort, we reserve the right to make changes in specications without notice. C L I M A T E C O N T R O L Commercial Refrigeration Parts The name behind the brands you trust. ™ H-IM-90-0808 C ondenser Start Up Date Model # Serial # Electric al V oltage Amperage Installer: Na[...]