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16

RAU-SVX01B-E4

A) The compressor does not start up 

Compressor terminals are live but
motor does not start
Contactor motor not operational.
No current ahead of motor contactor.

Current ahead of fuse, but not on
contactor side.
Low voltage reading on voltmeter.
Starter coil not excited.

Compressor does not run.
Compressor motor ”groans”.
High pressure switch tripped to
contacts open on high pressure.
Discharge pressure too high.

B) Compressor stops 
High pressure switch tripped.

Over current thermal relay tripped.

Motor temperature thermostat tripped.
Anti-freeze security tripped.

C) Compressor stops just after its

start

Suction pressure too low.
Filter drier iced up.

Motor burned out.

Coil burned out or broken contacts.
a) Power cut.
b) Main power supply switched off.

Fuse blown.

Voltage too low.
Regulation circuit open.

Compressor sticking
(damaged or sticking components).
Discharge pressure too high

Discharge pressure too high.

a) Voltage too low.
b) Cooling demand too high, or

condensing temperature too high.

Not enough cooling fluid.

Filter drier clogged.

Replace compressor

Repair or replace.
Check fuses and connection.
See why system tripped.
If system is operational, switch on
main power supply.
Check motor insulation. Replace fuse.

Contact power Supply Utility.
Locate regulation device which has
tripped out and see why. See
instructions concerning this device.
Replace compressor.
See instructions for “discharge
pressure high”.

See instructions for “discharge
pressure high”.
a) Contact Power Supply Utility.
b) See instruction “discharge pressure

too high”.

Repair leak. Add refrigerant.

Replace filter drier.

Troubleshooting guide

These are simple diagnostic hints. If there is a breakdown, the Trane Service office should be contacted for
confirmation and assistance.

Problems symptoms

Problem cause

Action recommended

Содержание RAU-SVX01B-E4

Страница 1: ...Installation Operation Maintenance RAU Air Cooled Condensing Unit Sizes 190 260 300 350 400 450 500 600 700 800 RAU SVX01B E4 To be used with the manual of SMM module Reference L80 IM 022 E...

Страница 2: ...st to the last carrier of the goods within 72 hours of delivery Notify the local Sales Office at the same time The unit should be totally inspected within 7 days of delivery If any concealed damage is...

Страница 3: ...acteristics 7 Electrical connections 10 General start up Preparation 11 Start up 11 Operation Control and unit operation 13 Seasonal shutdown and start up 13 Weekly start up and week end shutdown 13 M...

Страница 4: ...does not allow to install spring isolators Clearance Respect recommended clearance around the unit to allow maintenance operation to take place without obstruction and recommended clearance around co...

Страница 5: ...ing itself to avoid transmission to building structure of vibrations normally caused by pipework Also avoid bypassing the unit s damping system by fixing the refrigerant lines or the electrical ducts...

Страница 6: ...alist who has performed this start up The quantiy of refrigerant and oil added are at the client s charges Refrigerant charge all split system types After system pressure and vacuum testing fill up un...

Страница 7: ...e size mm 9 52 9 52 9 52 9 52 9 52 9 52 9 52 9 52 9 52 9 52 Tube type Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Height mm 1219 1219 1219 1219 1219 1219 1219 1219 1219 1219...

Страница 8: ...ate Fin Tube size mm 9 52 9 52 9 52 9 52 9 52 9 52 9 52 9 52 9 52 9 52 Tube type Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Height mm 1219 1219 1219 1219 1219 1219 1219 1219...

Страница 9: ...9 52 9 52 9 52 9 52 9 52 9 52 9 52 9 52 9 52 Tube type Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Smooth Height mm 1219 1219 1219 1219 1219 1219 1219 1219 1219 1219 Length mm 2743...

Страница 10: ...s the transformer If the transformer is not ordered it is necessary to foresee the power supply of the electronic module separately Warranty reserves will be formulated if a transformer not supplied b...

Страница 11: ...ing the isolators located under the rails supporting the compressor Put the plexiglass supplied by Trane in front of the power terminal Ensure all refrigerant valves are in service positions Ensure th...

Страница 12: ...C With 407c it should be 20 to 23 C Final check When the unit is operating correctly Check that the unit is clean and clear of any debris tools etc All valves are in operating position Close control...

Страница 13: ...g pressures temperatures amperages and voltage Check operation of machines compare conditions of operation against original commissioning data Push button O of the module Insure that all safeties are...

Страница 14: ...ck operation of all safety devices Inspect contacts tighten terminals Megger the motor compressor windings Record operating pressures temperatures amperages and voltage Carry out leak test Check confi...

Страница 15: ...dryer and sight glass presence Check oil traps presence on discharge line if there vertical risers 3m Check pitch for horizontal lines 1cm m Check refrigerant presence Electrical equipment Check direc...

Страница 16: ...circuit open Compressor sticking damaged or sticking components Discharge pressure too high Discharge pressure too high a Voltage too low b Cooling demand too high or condensing temperature too high N...

Страница 17: ...neven liquid flow b Expansion valve locked in open position Not enough refrigerant Drier filter clogged Superheat not properly adjusted Presence of uncondensable liquids in system or excess refrigeran...

Страница 18: ...too low Excessive pressure drop through filter drier Refrigerant does not flow through thermostatic expansion valve Loss of power Superheat too low Excess cooling demand on evaporator a Expansion valv...

Страница 19: ...15 8 4 1 17 3 4 1 4 C 16 2 4 4 18 2 4 4 20 4 4 4 22 8 4 4 13 0 4 4 14 1 4 4 15 4 4 4 16 8 4 4 2 C 16 6 4 7 18 6 4 7 20 8 4 7 23 2 4 7 12 8 4 7 13 9 4 7 15 1 4 7 16 5 4 7 18 0 4 7 0 C 17 0 5 0 19 0 5...

Страница 20: ...3 6 8 29 1 6 8 19 3 6 8 21 4 6 8 23 8 6 8 26 3 6 8 29 0 6 8 Saturated suction temperature Table 5 RAU 700 R22 RAU 800 R22 Outdoor AmbientTemperature C 25 C 30 C 35 C 40 C 45 C 25 C 30 C 35 C 40 C 45...

Страница 21: ...1 2 2 6 C 10 1 2 3 10 9 2 3 11 9 2 3 13 4 2 3 15 1 2 3 9 9 2 3 10 8 2 3 11 7 2 3 12 6 2 3 13 7 2 3 4 C 9 9 2 5 10 7 2 5 12 0 2 5 13 6 2 5 15 3 2 5 9 8 2 5 10 5 2 5 11 4 2 5 12 4 2 5 13 4 2 5 2 C 9 8 2...

Страница 22: ...12 3 4 2 13 9 4 2 15 6 4 2 17 4 4 2 10 9 4 2 12 3 4 2 13 8 4 2 15 5 4 2 17 3 4 2 Saturated suction temperature Table 10 RAU 700 R134a RAU 800 R134a Outdoor AmbientTemperature C 25 C 30 C 35 C 40 C 45...

Страница 23: ...7 1 9 22 9 29 6 4 4 1 3 7 6 19 0 48 2 43 2 44 0 85 5 83 0 2 0 21 7 28 4 4 5 0 6 7 0 20 0 50 3 45 4 45 0 86 6 84 2 2 1 20 5 27 2 4 6 0 0 6 3 21 0 52 3 47 5 46 0 87 6 85 4 2 2 19 4 26 1 4 7 0 6 5 7 22...

Страница 24: ...15 1 3 7 16 6 3 7 18 2 3 7 4 C 16 4 4 0 18 6 4 0 21 0 4 0 23 6 4 0 26 5 4 0 12 3 4 0 13 4 4 0 14 7 4 0 16 1 4 0 17 7 4 0 2 C 16 8 4 3 19 0 4 3 21 4 4 3 24 0 4 3 27 0 4 3 12 1 4 3 13 2 4 3 14 4 4 3 15...

Страница 25: ...6 6 4 30 6 6 4 19 7 6 4 22 0 6 4 24 6 6 4 27 4 6 4 30 4 6 4 DewTemperature At Evaporating Pressure Table 16 RAU 700 R407C RAU 800 R407C Outdoor AmbientTemperature C 25 C 30 C 35 C 40 C 45 C 25 C 30 C...

Страница 26: ...control validation B08 Auxiliary set point validation B09 Current date display B091 Day B092 Month B093 Year B10 Current time display B101 Hours B102 Minutes B103 Seconds B11 Set this parameter to 0...

Страница 27: ...27 RAU SVX01B E4 Notes...

Страница 28: ...aximum operating life of your equipment We would remind you that failure to respect these installation and maintenance instructions may result in immediate cancellation of the warranty Training The eq...

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