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8

CXRC-SVX01J-EN

Pre-Installation

Receiving Shipment

Upon receiving shipment, complete the following
checklist:

Inspect individual cartons before accepting. Check
for rattles, bent carton corners, or other visible
indications of shipping damage.

If a unit appears damaged, inspect it immediately
before accepting the shipment. Make specific
notations concerning the damage on the freight bill.
Do not refuse delivery.

Inspect the unit for concealed damage before it is
stored and as soon as possible after delivery.
Report concealed damage to the freight line within
the allotted time after delivery. Check with the
carrier for their allotted time to submit a claim.

Do not move damaged material from the receiving
location. It is the receiver’s responsibility to provide
reasonable evidence that concealed damage did
not occur after delivery.

Do not continue unpacking the shipment if it
appears damaged. Retain all internal packing,
cartons, and crate. Take photos of damaged
material if possible.

Notify the carrier’s terminal of the damage
immediately by phone and mail. Request an
immediate joint inspection of the damage by the
carrier and consignee.

Notify your Trane representative of the damage and
arrange for repair. Have the carrier inspect the
damage before making any repairs to the unit.

Contractor Installation
Responsibilities

Complete the following checklist before beginning final
unit installation.

Verify the unit size and tagging with the unit
nameplate.

Ensure that the 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

otte

e:: For a detailed discussion of base and

foundation construction see the Trane Air
Conditioning Manual. This manual is
available through the local Trane sales office.

N

No

otte

e:: On rooftop applications be certain that the

roof structure has sufficient strength to
support the unit operating weight. See

Table

1, p. 9

or unit shipping weight and operating

weight, and

Table 3, p. 15

for point loading

information.

Allow minimum recommended clearances for
routine maintenance and service. Allow space at
end of the unit for shaft removal and servicing.
Refer to unit submittal for dimensions. Refer to the
section, .

Allow three (3) fan diameters above the unit for the
discharge ductwork. Return air enters the rear of
the unit and conditioned supply air discharges
through the top.

Electrical connection knockouts are on the top, left
side of the unit.

Allow adequate space for piping access and panel
removal. Condenser water piping, refrigerant
piping, and condensate drain connections are on
the lower left end panel.

N

No

otte

e:: Unit height and connection locations will

change if using vibration isolators. The unit
height may increase up to 5 7/8” with spring-
type isolators.

Electrical supply power must meet specific balance
and voltage requirements as described in the
section,

“Installation — Electrical,” p. 19

.

F

Fo

orr a

aiirr--cco

oo

olle

ed

d u

un

niittss o

on

nlly

y:: The installer is

responsible for providing and installing the remote
air-cooled condenser and refrigerant piping,
including filter driers.

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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