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SS-SVN11A-EN

Model Number Description

All products are identified by a multi-
ple-character model number that pre-
cisely identifies a particular type of 
unit. An explanation of the alphanu-
meric identification code is provided 
below. Its use will enable the owner/
operator, installing contractors, and 
service engineers to define the opera-
tion, specific components, and other 
options for any specific unit.

When ordering replacement parts or 
requesting service, be sure to refer to 
the specific model number, serial 
number, and DL number (if applica-
ble) stamped on the unit nameplate.

Digits 1,2,3 - 

Product Type

CTA = Remote Air-Cooled Condenser

Digits 4,5,6 - 

Nominal Gross 

Cooling Capacity (MBh)

090 = 090 MBh-used with 

3 & 5T SCRH

120 = 120 MBh - used with 

7.5 & 10T SCRH

180 = 180 MBh - used with 

12 & 15T SCRH)

Digits 7 - 

Major Development 

Sequence

A = 1 Refrig Cir.(3, 5, 7.5T SCRH)
B = 2 Refrig Cir. (10, 12, 15T SCRH)

Digits 8 - 

Electrical 

Characteristics

1 = 208-230/60/1
2 = 460/60/1
8 = 575/60/1

Digits 9,10 - 

Factory Installed 

Options

00 = Packed Stock
0A = Coated Coil

Digits 11 - 

Minor Design Sequence

A = First

Digits 12 - 

Service Digit

A = First

Model Number
Description

Split System Condensing Model Nomenclature

C T A   0 9 0    A    1     0   0      A     A

1   2    3       4   5   6        7       8          9     10         11         12

Summary of Contents for 090A***A - 60 HZ

Page 1: ...SS SVN11A EN Models A and later Design Sequence Installation Owner Diagnostics Split System Cooling Condensers Model CTA 7 1 2 to 15 Tons CTA 090A A 60 HZ 120A A 60 HZ 120B A 60 HZ 180B A 60 HZ...

Page 2: ...eri enced HVAC technicians to properly diagnose and repair this equipment NOTICE Warnings and Cautions appear at appropriate sections throughout this manual Read these carefully WARNING Indicates a po...

Page 3: ...nit Inspection 9 Initial Leak Test 9 Lifting Recommendations 9 Clearances 10 Unit Mounting 10 Refrigerant Piping 10 Leak Check 12 System Evacuation 12 Refrigeration Charging 12 Electrical Wiring 13 Lo...

Page 4: ...ial number and DL number if applica ble stamped on the unit nameplate Digits 1 2 3 Product Type CTA Remote Air Cooled Condenser Digits 4 5 6 Nominal Gross Cooling Capacity MBh 090 090 MBh used with 3...

Page 5: ...SS SVN11A EN 5 Figure 1 CTA090A Figure 2 CTA120A Unit Dimensions...

Page 6: ...6 SS SVN11A EN Figure 3 CTA120B Unit Dimensions...

Page 7: ...SS SVN11A EN 7 Figure 4 CTA180B Unit Dimensions...

Page 8: ...6 15 15 1 1 2 1 6 3 7 CTA090A8 575 60 1 518 632 15 15 1 1 2 1 2 3 0 CTA120A1 208 230 60 1 187 254 15 15 1 1 6 0 17 0 CTA120A2 460 60 1 414 506 15 15 1 1 2 7 7 0 CTA120A8 575 60 1 518 632 15 15 1 1 2 0...

Page 9: ...5 days If concealed dam age is discovered stop unpacking the shipment Do not remove dam aged material from the receiving location Take photos of the dam age if possible The owner must provide reasonab...

Page 10: ...y due to structural fail ure and can seriously damage the unit and the building Ground Level Mounting For ground level installation the unit base should be adequately supported and hold the unit near...

Page 11: ...lt in serious injury CAUTION Equipment Damage Do not remove the seal caps from refrigerant connections until pre pared to braze refrigerant lines to the connections Excessive expo sure to atmosphere m...

Page 12: ...ines leading to a sealed sys tem can be accomplished with manifold center hose and connecting branch hose to cylinder of R 410a and vacuum pump 3 Attach center hose of manifold gauges to the vacuum pu...

Page 13: ...is operating properly 5 Disconnect all power to the unit WARNING HAZARDOUS VOLTAGE w CAPACITORS Disconnect all power including remote disconnects and dis charge all capacitors before ser vicing Follo...

Page 14: ...ire 24 volts D 2 control wires 24 volts CTA180B S C I RH120 CTA180B S C I RH150 Field Wiring A 2 power wires Line voltage for single phase B 3 power wires Line voltage for 3 phase C Cooling only therm...

Page 15: ...SS SVN11A EN 15 Field Wiring...

Page 16: ...16 SS SVN11A EN Wiring...

Page 17: ...SS SVN11A EN 17 Wiring...

Page 18: ...18 SS SVN11A EN Wiring...

Page 19: ...SS SVN11A EN 19 Wiring...

Page 20: ...20 SS SVN11A EN Refrigeration Diagram Figure 11 Typical Split System Cooling Diagram...

Page 21: ...rformed initial leak test Connected properly sized and con structed liquid and discharge lines to the connection stubs at both the indoor and outdoor units Insulated the entire discharge line Insulate...

Page 22: ...ON AUTO switch on the room ther mostat With the switch positioned at AUTO and the system operating in the cooling mode fan operation coin cides with the cooling run cycles If the system is equipped w...

Page 23: ...ct power before servic ing could result in death or seri ous injury 1 Inspect air filters and clean if neces sary 2 Check unit wiring to ensure all con nections are tight and that the wir ing insulati...

Page 24: ...each inspection once per month during cooling season while unit is operating Date Ambient Temp F Evaporator Entering Air Compressor Superheat Subcooling Dry Bulb Wet Bulb Suction Pressure Discharge P...

Page 25: ...exceed 18 months from shipment Extended Warranty The optional extended warranty is a second through fifth year warranty The time starts at the end of standard 1 year coverage through the fifth year T...

Page 26: ...gn and specifications without notice Literature Order Number SS SVN11A EN File Number SV UN SS SVN11A 1004 Supersedes New Stocking Location Inland Trane A Business of American Standard Companies www t...

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