Manuale d’uso / di manutenzione del prodotto none del fabbricante Heatcraft Refrigeration Products
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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 © 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 .
3 Drawing 1. Rigging Instructions.
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.
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.
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.
7 Diagram 1. T ypical Condenser Wiring Diagram with F an C ycle Contr ols.
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.
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 .
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.
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 Oset Settings Row Rows T .
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.
13 T able 9. Flooded Charge T emperature Dier 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.
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.
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.
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.
17 Master/Slav e Conguration The EC motor contr ol signals are wir ed in a Master/ Slave c onguration. This conguration 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).
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 K.
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.
20 Installation Check List Since product improv ement is a continuing eort, we reserve the right to make changes in specications 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.
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Heatcraft Refrigeration Products none è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Heatcraft Refrigeration Products none - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Heatcraft Refrigeration Products none imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Heatcraft Refrigeration Products none ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Heatcraft Refrigeration Products none, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Heatcraft Refrigeration Products none.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Heatcraft Refrigeration Products none. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Heatcraft Refrigeration Products none insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
