Trane CCRC 20 Installation, Operation And Maintenance Manual Download Page 22 | Manualshive

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CXRC-SVX01J-EN

Condenser Fan Operation

All condenser fans are direct-drive, 26” propeller and
are driven by one motor horsepower. Fan operation on
all units is interlocked with compressor start and stop.

They use customer-provided compressor contactor
auxiliary contacts and liquid line pressure if the
thermostat-controlled unit is used as the evaporator, or
by IntelliPak controller if using a SCRF or SCRG.

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Summary of Contents for CCRC 20

Page 1: ...e and training Improperly installed adjusted or altered equipment by an unqualified person could result in death or serious injury When working on the equipment observe all precautions in the literatu...

Page 2: ...a ar r p pr ro op pe er r P PP PE E f fo or r t th he e j jo ob b b be ei in ng g u un nd de er rt ta ak ke en n c co ou ul ld d r re es su ul lt t i in n d de ea at th h o or r s se er ri io ou us s...

Page 3: ...d de ea at th h o or r s se er ri io ou us s i in nj ju ur ry y D Di is sc co on nn ne ec ct t a al ll l e el le ec ct tr ri ic c p po ow we er r i in nc cl lu ud di in ng g r re em mo ot te e d di i...

Page 4: ...endations 19 Power Supply Wiring 19 System Interconnection Wiring 19 Unit Wiring Diagrams 19 Unit Voltage 19 Voltage Supply 19 Voltage Imbalance 20 Operating Principles 21 Control Sequences of Operati...

Page 5: ...minimized It is important that periodic maintenance be performed to help assure trouble free operation A maintenance schedule is provided at the end of this manual Should equipment failure occur cont...

Page 6: ...it 8 Unit Voltage 4 460 Volt 60 Hz 3 ph 5 575 Volt 60 Hz 3 ph 6 200 Volt 60 Hz 3 ph Digit 9 Control Option 0 No Low Ambient IPak A No Low Ambient T Stat B Low Ambient IPak C Low Ambient T Stat Note T...

Page 7: ...ouvered condenser grills are for coil protection and available as an option to order Direct drive vertical discharge fans are provided with built in current and overload protection Head pressure contr...

Page 8: ...e floor or foundation is level solid and sufficient to support the unit and accessory weights Level or repair the floor before positioning the unit if necessary N No ot te e For a detailed discussion...

Page 9: ...amper per Circuit Refrigerant Line Connections Frontal View AC AB AA Table 1 CCRC CIRC Unit Weights Unit Size Shipping Weight lbs kg Operating Weight lbs kg CCRC CIRC 20 2030 920 1906 865 CCRC CIRC 29...

Page 10: ...R 3 4 CONDUIT SUPPLY VOLTAGE WIRE ENTRY HOLE SIZED FOR 1 CONDUIT 66 7 8 1699mm 18 1 4 1 2 114mm 1 2 470mm Hot Gas Conn Refrig ckt 17 1 2 445mm 14 3 8 365mm Liq Line Conn Refrig ckt 1 24 3 4 629mm Liq...

Page 11: ...ances are doubled See for specific pit installation clearance instructions If multiple units are placed side by side the minimum distance between units must be twice the normal recommended side cleara...

Page 12: ...e 9 Recommended Clearances for Typical Pit Installation for All Unit Sizes Figure 10 Typical Side by Side Installation Recommended Clearances for All Unit Sizes D Di im me en ns si io on ns s a an nd...

Page 13: ...ty y l li if ft t p po oi in nt t T To o a av vo oi id d d dr ro op pp pi in ng g o of f u un ni it t r re ep po os si it ti io on n l li if ft ti in ng g p po oi in nt t i if f u un ni it t i is s n...

Page 14: ...shown in Figure 13 p 15 through Figure 15 p 16 Spring Isolators Unit mounting locations are shown in Figure 13 p 15 through Figure 15 p 16 Operating weights and weight loading at each mounting locati...

Page 15: ...lb 20 2030 463 463 463 517 1906 29 2084 490 463 490 517 1960 32 2138 490 490 490 554 2014 35 3018 463 463 463 463 463 518 2833 40 3072 463 463 490 463 463 518 2887 50 3995 490 490 490 490 490 350 490...

Page 16: ...near the condenser to facilitate refrigerant storage in the condenser during service procedures When optional discharge line ball valves are present in the indoor section installation of field suppli...

Page 17: ...of the indoor unit left side for SCRF SIRF right side for SCRG SIRG CCRC CIRC connections are located in the unit front at the top Remove cap with a tube cutter to minimize risk of getting chips insi...

Page 18: ...SXRG CXRC Size Circuit 1 Circuit 2 Liquid Discharge Liquid Discharge 20 20 5 8 in 7 8 in 5 8 in 7 8 in 25 29 5 8 in 1 1 8 in 5 8 in 7 8 in 32 32 5 8 in 1 1 8 in 5 8 in 1 1 8 in a Use 1 1 8 for vertica...

Page 19: ...ided in this manual Power Supply Wiring Run appropriately sized power wiring and field supplied conduit through the line voltage access opening provided on the front of the unit Refer to Figure 1 p 7...

Page 20: ...measured 227 V 221 230 227 3 2 2 N No ot te e L1 221 volts is the maximum deviation of the 3 voltages from the average of the 3 voltages Therefore the imbalance percentage is 100 226 221 226 2 2 The...

Page 21: ...ow If saturated condenser temperature continues to rise with damper modulated fully open K1 relay drops out and the IntelliPak controller pulls in K2 relay subsequently pulling in contactor Circuit 1B...

Page 22: ...operation on all units is interlocked with compressor start and stop They use customer provided compressor contactor auxiliary contacts and liquid line pressure if the thermostat controlled unit is u...

Page 23: ...he fan orifices and should be mounted securely on the motor shafts Check condenser coils Coil fins should be clean and straight There should be no restrictions to proper airflow through the condenser...

Page 24: ...n n t th he e c cr ra an nk kc ca as se e h he ea at te er rs s o on n f fo or r a a m mi in ni im mu um m o of f 2 24 4 h ho ou ur rs s b be ef fo or re e s st ta ar rt ti in ng g c co om mp pr re es...

Page 25: ...i io ou us s i in nj ju ur ry y o or r e eq qu ui ip pm me en nt t o or r p pr ro op pe er rt ty y o on nl ly y d da am ma ag ge e N Ne ev ve er r u us se e a an n o op pe en n f fl la am me e t to o...

Page 26: ...l check the oil container for discoloration which usually indicates moisture in the oil and or water droplets Moisture in the oil adds to what must be removed from the system increasing pump down time...

Page 27: ...ls off to a constant value this indicates that there is excessive moisture present If the pressure steadily continues to rise a leak is indicated Figure 18 p 27 illustrates three possible results of t...

Page 28: ...frigerant charging can begin Charge refrigerant into the system by weight Approximate operating refrigerant charge capacities for 20 through 60 ton CCRC CIRC condensing units are given in and Calculat...

Page 29: ...with fin comb as required 5 Mix the detergent with water according to the manufacturers instructions N No ot te e Observe all recommendations of the cleanser manufacturer The coil cleanser manufactur...

Page 30: ...en ns se ed d e el le ec ct tr ri ic ci ia an n o or r o ot th he er r i in nd di iv vi id du ua al l w wh ho o h ha as s b be ee en n p pr ro op pe er rl ly y t tr ra ai in ne ed d i in n h ha an nd...

Page 31: ...Power and Controls 20 60T IntelliPak 2313 1632 Schematic Power and Controls 20 32T Thermostat Controls 2313 1635 Connections Control Panel w Thermostat Controls 2313 1636 Connections Control Panel w v...

Page 32: ...or more information please visit trane com or tranetechnologies com Trane has a policy of continuous product and product data improvements and reserves the right to change design and specifications wi...

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