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WA900-3EO

COMMISSIONING

NITROGEN LEAK TESTING

General Instructions

Legislation on handling of refrigerants
requires leak testing of the system following
any dismantling of major components.

The procedure to do this is as follows:-

1. Connect a cylinder of dry nitrogen to

the compressor valve on either of the
suction or liquid line connections.

Note: It is important that the
nitrogen charging set is supplied
with a shut-off valve pressure
reducing valve, cylinder pressure
gauge, line pressure gauge and
bleed valve.

2. Set the cylinder reducing valve to 1035

kPa (150 psig)

3. Open the nitrogen cylinder shut-off

valve and charge the plant up to a test
pressure of 1035 kPa (150 psig).

4. Close the cylinder shut-off valve.

5. All joints should be vibrated by tapping

carefully with a rubber or soft hide-faced
mallet.

6. Test for leaks with a soap and water

solution.

COMMISSIONING

Содержание Breathesafe WA900-3EO

Страница 1: ...turer KOMATSU Type WHEEL LOADER Model WA900 3EO Site ROBE RIVER IRON ASSOCIATES Serial Number 60348 Cabin Pressure Max 253Pa Set Auto Cabin Pressure 50 Key Modules High Capacity Pressuriser HEPA H13 F...

Страница 2: ...ant circuit breakers opened to isolate the circuit The air conditioning system has various types of rotating equipment installed Ensure all safety guards are in place while the system is running The r...

Страница 3: ...the operator In essence this part of the system controls dust from shoes and clothes 10 The air passes through the HVAC system and into the cab 11 Positive cabin pressure ensures a safe work environme...

Страница 4: ...7500 Hours 3 4 TQ47010320H TQUCPM INPRESS 1 Cabin HEPA RETURN AIR FILTER BREATHE SAFE DIGITAL DISPLAY DATA RECORDER 10000 Hours Refer to page 16 INPRESS TL ACTIVATED CARBON PHASE Item Part Number Qty...

Страница 5: ...thermostat in the compressor clutch circuit AUTOMATIC CONTROLS The universal electronic thermostat has been selected for its reliability and functionality It has been pre programmed to provide the opt...

Страница 6: ...n Temperature 29o C DB 19 o C WB Suction Temperature 2o C Ambient Temperature 30 o C Refrigerant R134a Total Refrigerant Charge 2 2kgs THERMOSTAT The electronic thermostat controls return air temperat...

Страница 7: ...mperature without get ting any warmer It should be noted that the boiling point of water is 100 o C only if it is subjected to the air pressure at sea level The boiling point temperature will actually...

Страница 8: ...rant as it travels through the system the descriptions of the refrigeration components have been listed in the order which coincides with refrigerant flow 1 Condenser Coil Condensing of the refrigeran...

Страница 9: ...igh discharge side service valve is quickly identified by the smaller discharge hose routed to the condenser while the low suction side has a larger hose coming from the evaporator The valve is normal...

Страница 10: ...rance IMPORTANT The air conditioning system must be run for a minimum of five minutes each week regardless of the season to lubricate the system and prevent damage to the seals 1 2 3 4 5 6 7 Item Desc...

Страница 11: ...the controller please press in the middle of the panel and with two screwdrivers gently pry the controller free Once started it will eject automatically To install the controller again please push it...

Страница 12: ...condensing Basic Input 1 25o C Rb 5K B 3274 Interior temp sensor at 25C Rb 5K B 3274 2 25o C Rb 5K B 3274 Defrost temp sensor at 25C Rb 5K B 3274 3 ACC Battery Basic Output 1 1 6 10V Fan speed Signal...

Страница 13: ...es the air volume to 100 The voltage output is 10V and thefan motor runs at full speed TEMPERATURE SETTING Turn the Temperature Knob to set the temperature value in the range of 15 32o C POWER SWITCH...

Страница 14: ...ature as follows If the interior temperature setting temp 2o C the compressor is turned off If the interior temperature setting temp 2o C the compressor is turned on 8 Defrost Function The Controllers...

Страница 15: ...ded may incur costly machine down time It is strongly recommended that an annual service programme be implemented This full unit service should be carried out once a year generally just prior to the b...

Страница 16: ...tray Check for cleanliness Check for drain pipe blockage Main frame and panels Unit mounting Check securing screws and catches Check securing screws Check plenum seal for leaks Refrigeration lines Fr...

Страница 17: ...er element and while up side down hit firmly on a flat surface Repeat procedure several times or replace element as required Filter Housing Check the lid seals and all bolt and screws are secure THREE...

Страница 18: ...an overcharge of refrigerant causes excessive head pressures which in turn can cause considerable damage 6 Backseat the suction service valve but do not disconnect the cylinder at this stage 7 Allow r...

Страница 19: ...NOT wash 4 Check the rubber seals at the base of the filter element for damage or deterioration 5 Remove accumulated dust from filter housing 6 Refit the filter element ensuring that it seats correct...

Страница 20: ...ration system 6 Using a sharp instrument carefully prise out the conical shaped strainer from the inlet port Note Care must be taken not to tear the wire gauze 7 Carefully wash the gauze in a suitable...

Страница 21: ...gs Mining Spec Deutsch electrical plugs as standard Construction Heavy duty plate laser cut CNC formed fully welded Serviceability Fully hinged lid complete with flush fitting Cam locks Finish Satin P...

Страница 22: ...NFIDENTIAL Manufacture TRACS Qld E Mail nick breathe safe com TOLERANCES LINEAR XX 1 50mm XX X 0 75mm XX XX 0 25mm ANGULAR 0 30 Unless Staded on Drawing The informa on contained in this drawing is the...

Страница 23: ...r Kit Brushless Stainless Steel 316 2B 08 09 2014 53 74 04600 Steve Johnstone kg Sheet No 08 September 2014 Date Printed Copied All dimensions in mm PROPRIETARY CONFIDENTIAL Manufacture TRACS Qld E Ma...

Страница 24: ...on contained in this drawing is the sole property of TRACS QLD Ltd Any reproduc on in part or as a whole without the wri en permission of TRACS Ltd is prohibited Manufacture KOMATSU Tolerance 0 5mm un...

Страница 25: ...07 4 TL4M 8 1 Motor Filter Gasket TLO1 9 1 Filter Gasket TLG1 10 1 Wiring sleeve grommet TL4M TLWSLEEVE 11 1 Filter Seal HEPA Filter 161 x 250L TLF700EN 12 3 M6 Nyloc Nut 13 3 M6 x 55 Hex Bolt 14 4 M8...

Страница 26: ...ht Model Pressuriser Filter Parts Lis ng PC 4000 As Detailed 15 01 2014 24 68 Steve Johnstone kg Sheet No 15 January 2014 Date Printed Copied All dimensions in mm A C N 109 689 803 A B N 42 109 689 80...

Страница 27: ...the unit closed run engine up to maximum rpm STEP 5 Note compressor discharge and suction pressures and check the feel and condition of the compressor suction service valve STEP 6 If the discharge pr...

Страница 28: ...ve on either of the suction or liquid line connections Note It is important that the nitrogen charging set is supplied with a shut off valve pressure reducing valve cylinder pressure gauge line pressu...

Страница 29: ...of the compressor The low side gauge registers both pressure and vacuum The vacuum side is utilised to record the vacuum pulled during evacuation of the system in inches of mercury The pressure porti...

Страница 30: ...the intake port on the vacuum pump 4 Ensure that the vacuum pump discharge valve is closed 5 Switch the vacuum pump on and open the hand valves on the gauge set Open the vacuum pump discharge valve a...

Страница 31: ...em charging Ambient Temp o C COMPRESSOR Discharge Pressure kPa Suction Pressure kPa 16 o 850 1200 20 100 21 o 1050 1750 20 100 27 o 1250 1900 20 100 32 o 1400 2150 30 150 38 o 1600 2300 30 200 43 o 19...

Страница 32: ...to open the charging port 6 Run the engine at 1500 r p m select HIGH COOL on the Main Control Switch 7 Slowly open the low pressure gauge manifold hand valve al lowing the system to draw refrigerant v...

Страница 33: ...suriser system without the correct electrical safety measures being taken and all relevant circuit breakers opened to isolate the circuit the pressuriser has various types of rotating equipment instal...

Страница 34: ...inst appli cable ambient temperature DISCHARGE SUCTION TABLE Ambient Temp o C COMPRESSOR Discharge Pressure kPa Suction Pressure kPa 16 o 850 1200 20 100 21 o 1050 1750 20 100 27 o 1250 1900 20 100 32...

Страница 35: ...ve TX Valve jammed shut Blocked Evaporator Blocked Condenser Locate leak repair Evacuate charge system Replace TX Valve Determine cause Repair or replace blower motor Check and clean coil TX Valve jam...

Страница 36: ...s necessary Air or moisture in the system Leak test Evacuate charge system Heating system not correctly shut off Check rectify Compressor shaft seal leak Replace shaft seal System low on refrigerant B...

Страница 37: ...gap Replace clutch if necessary Replace thermostat Incorrect TX valve superheat adjustment Replace bulb if necessary Thermostat adjusted too low Adjust or replace valve Adjust thermostat Diagnosis of...

Страница 38: ...mpressor inside the unit Replace pulley bearing Repair or replace as necessary Tighten or replace as necessary Check mounting Remove compressor for service or replacement Faulty compressor Thoroughly...

Страница 39: ...alve will either maintain an al most closed position or may close completely To test for a defective power element the thermal bulb should be removed from the suction line and warmed by holding it tig...

Страница 40: ...suction line will be relatively warm while the suction pressure will be low due to little or no liquid being supplied to the evaporator if the shortage is severe 10 OVERCHARGE OF REFRIGERANT An overc...

Страница 41: ...NOSIS FOR ELECTRONIC THERMOSTATS Test Reason Power present at P1 1 in LO MED HI Note P1 1 refers to terminal No 1 Ensures power supply to thermostat Continuity between P1 5 and earth Ensures circuit t...

Страница 42: ...XX 0 25mm ANGULAR 0 30 Unless Staded on Drawing The informa on contained in this drawing is the sole property of Breathesafe Pty Ltd Any reproduc on in part or as a whole is prohibited without wri en...

Страница 43: ...is receiving the correct power supply that it is main tained once the machine is running 2 If the unit uses a motor with serviceable brush s Check brush con dition and for any dust build up in the bru...

Страница 44: ...in relation to service outside our factory or designated service branch including traveling time waiting time transport costs mechanical and overtime payments required This warranty does not cover dam...

Страница 45: ...IBUTOR INTERNATIONAL SERVICE SUPPLY 10740 181 STREET NW EDMONTON ALBERTA www issminesafety com CONTACTUS Phone 61 7 3276 7833 Fax 61 7 3276 8960 37 Argon Street Carole Park Qld 4300 169 Chisholm Cresc...

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