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SS-SVN11A-EN

23

WARNING:

 

ELECTRICAL HAZARD!
The maintenance and trouble-
shooting procedures recommend-
ed in this section of the manual 
could result in exposure to electri-
cal mechanical or other potential 
safety hazards. Always refer to 
the safety warnings provided 
throughout this manual concern-
ing these procedures. When possi-
ble, disconnect all electrical 
power including remote discon-
nects before servicing. Follow 
proper lockout/tagout procedures 
to ensure the power can not be in-
advertently energized. When nec-
essary to work with live electrical 
components, have a qualified li-
censed electrician or other indi-
vidual who has been trained in 
handling live electrical compo-
nents perform these tasks. Failure 
to follow all of the recommended 
safety warnings provided, could 
result in death or serious injury.

Maintenance

Perform all of the indicated mainte-
nance procedures at the
intervals scheduled. This will prolong 
the life of the unit and reduce the pos-
sibility of costly equipment failure.

Monthly

Conduct the following maintenance 
inspections once per month.

WARNING:

 

HAZARDOUS VOLTAGE!
Disconnect all electric power, in-
cluding remote disconnects be-
fore servicing. Follow proper 
lockout/tagout procedures to en-
sure the power can not be inad-
vertently energized. Failure to 
disconnect 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 insulation is intact.

3. Check drain pans and condensate 

piping to insure they are free of ob-
stacles.

4. Manually rotate the indoor fan to in-

sure proper operation.

5. Inspect the evaporator and con-

denser coils for dirt and debris. If the 
coils appear dirty, clean them.

6. With the unit operating in the cool-

ing mode, check the suction and dis-
charge pressures. Record these 
readings on the “Maintenance 
Log.”

7. Observe indoor fan operation and 

correct any unusual or excessive vi-
bration. Clean blower wheels as 
needed.

Annually (Cooling Season)

The following maintenance proce-
dures must be performed at the begin-
ning of each cooling season to insure 
efficient unit operation.

1. Perform all of the monthly mainte-

nance inspections.

2. With the unit operating, check unit 

superheat and record the reading in 
the 

Maintenance Log

.

3. Remove any accumulation of dust 

and/or dirt from the unit casing.

4. Remove corrosion from any surface 

and repaint. Check the gasket 
around the control panel door to in-
sure it fits correctly and is in good 
condition to prevent water leakage.

5. Inspect the evaporator fan belt. If it 

is worn or frayed, replace it.

6. Inspect the control panel wiring to 

insure that all connections are tight 
and that the insulation is intact.

7. Check refrigerant piping and fittings 

for leaks.

Maintenance

Содержание 090A***A - 60 HZ

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 16: ...16 SS SVN11A EN Wiring...

Страница 17: ...SS SVN11A EN 17 Wiring...

Страница 18: ...18 SS SVN11A EN Wiring...

Страница 19: ...SS SVN11A EN 19 Wiring...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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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