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SS-SVN11A-EN

9

Installation procedures should be per-
formed in the sequence that they 
appear in this manual. Do not destroy 
or remove the manual from the unit. 
The manual should remain weather-
protected with the unit until all instal-
lation procedures are complete.

Note: 

It is not the intention of this 

manual to cover all possible varia-
tions in systems that may occur or to 
provide comprehensive information 
concerning every possible contin-
gency that may be encountered dur-
ing an installation. If additional 
information is required or if specific 
problems arise that are not fully dis-
cussed in this manual, contact your 
local Sales office.

Note: 

“Warnings” and “Cautions” 

appear at appropriate
places in this manual. Your personal 
safety and the proper
operation of this machine require that 
you follow them carefully. The Com-
pany assumes no liability for installa-
tions or servicing performed by 
unqualified personnel.

Installation Checklist

An “Installation Checklist” is provided 
at the end of the installation section of 
this manual. Use the checklist to verify 
that all necessary installation proce-
dures have been completed. Do not 
use the checklist as a substitute for 
reading the information contained in 
the manual. Read the entire manual 
before beginning installation proce-
dures.

Unit Inspection

Inspect material carefully for any ship-
ping damage. If damaged, it must be 
reported to, and claims made against 
the transportation company. Compare 
the information that
appears on the unit nameplate with 
ordering and submittal
data to insure the proper unit was 
shipped. Available power supply must 

be compatible with electrical charac-
teristics specified on component 
nameplates. Replace damaged parts 
with authorized parts only.

Inspection Checklist

To protect against loss due to damage 
incurred in transit, complete the fol-
lowing checklist upon receipt of the 
unit.

[ ] Inspect individual pieces of the 

shipment before accepting the unit. 
Check for obvious damage to the 
unit or packing material.

[ ] Inspect the unit for concealed dam-

age before it is stored and as soon 
as possible after delivery. Con-
cealed damage must be reported 
within 15 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 reasonable evidence that 
the damage did not occur after 
delivery.

[ ] Notify the carrier’s terminal of dam-

age immediately by phone and by 
mail. Request an immediate joint 
inspection of the damage by the 
carrier and the consignee.

[ ] Notify the sales representative and 

arrange for repair. Do not repair the 
unit until the damage is inspected 
by the carrier’s representative.

Initial Leak Test

All 

CTA 

units are shipped with a hold-

ing charge of nitrogen in each circuit. 
Remove the service access panel(s) 
shown in Figures 1 to 4. Locate the 
discharge or liquid line gauge ports 
for each circuit. Install gauges to
determine if the circuits are still pres-
surized. If not, the charge has 
escaped. Repair as required to obtain 
a leak-free circuit.

Lifting Recommendations

Before preparing the unit for lifting, 
estimate the approximate center of 
gravity for lifting safety. Because of 
placement of internal components, 
the unit weight may be unevenly dis-
tributed. Approximate unit weights 
are given in Table 2.

Table 2: Unit and corner weights (lbs)

  

WARNING

HEAVY OBJECTS!
Do not use cables (chains or 
slings) except as shown. Each of 
the cables (chains or slings) used 
to lift the unit must be capable of 
supporting the entire weight of 
the unit. Lifting cables (chains or 
slings) may not be of the same 
length. Adjust as necessary for 
even unit lift. Other lifting 
arrangements may cause equip-
ment or property-only damage. 
Failure to properly lift unit may 
result in death or serious injury. 
See details below.

The crated unit can be moved using a 
forklift of suitable capacity. For lifting 
the unit, attach lifting straps or slings
securely to the lifting holes at each 
corner. Use spreader bars to protect 
the unit casing from damage. Test lift 
the unit to determine proper balance 
and stability.

CAUTION

 

Equipment Damage!
Use spreader bars to prevent lift-
ing straps from damaging the 
unit. Install bars between lifting 
straps. Failure to properly lift unit 
may result in crushing unit cabi-
net or damaging unit finish.

Model

Ship

Max.

Net

Max.

Corner Weights

#1

#2

#3

#4

CTA090A 254 210

59

63

39

49

CTA120A

325 281

62

85

57

77

CTA120B
CTA180B 532 447 100 105 124 118

Installation

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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