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Page 22

UNSCREW RETAINERS
AND OPEN PANEL
REMOVE FILTER

LIFT AND REMOVE

AIR FILTER

PAC22AX

UNSCREW RETAINERS AND

OPEN PANEL, REMOVE FILTER

PAC15AX/ET15AX

FIG 4

8) ROUTINE MAINTENANCE

The air filter  must be kept clean,  never al-
low to become choked with dust or dirt.  If
allowed  to  do  so,  the  performance  of  the
unit will  become impaired,  resulting in  loss
of air flow, freezing up of the evaporator coil
and possible component  damage.

ACCESSING THE FILTER PAC15AX/
ET15AX

Open the lower front panel, filter is located
in front of the evaporator. A second filter is
fitted to the rear panel on of an ET15.

PAC22AX

Lift out the return air grille on the

front face of the unit, Fig 4. On refitting the
filter  ensure  that  it  is  correctly  positioned
covering the whole rear face of the grille.
The  filter  (see  Fig.  4)  can  be  washed  in
warm, soapy water, rinsed and shaken dry
before replacement.  Frequency of cleaning
depends  upon  application and can  only  be
determined  by  the  user.    However,  you
should  never  allow  more  than  two  months

to elapse between cleaning.  The probable
life  of  the  filter  will  be  about  one  year  and
spares are available from the supplier of the
unit itself.  Failure to have filter fitted during
operation will cause serious damage.

The refrigeration circuit inside the room unit
is fitted  with a HIGH and a LOW  pressure
sensing  switch.    They  are  both  manually
resettable.  A  pencil  or  screwdriver  with
gentle  pressure  on  the  knob  behind  is  all
that is required to re-set.

Necessary access is provided either via the
lower front panel on PAC15AX/ET15AX and
through the control console of the PAC22AX.

HOWEVER, DO NOT ATTEMPT TO RESET
WITHOUT FIRST DISCOVERING WHY
THE TRIP OCCURRED IN THE FIRST
PLACE.

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Содержание ET15

Страница 1: ... RESTRICTED TO ANDREWS TRAINED STAFF ONLY SD259752 Iss 22 1 DO NOT APPLY MAINS WATER PRESSURE TO PAC UNITS ACCESS TO THE FILLING POINT FOR THE WATER CIRCULATING SYSTEM IS REACHED BY REMOVAL OF THE FILLER ACCESS PLATE IN THE PAC ROOM UNIT BACK PANEL 2 WHEN REMOVING A PAC UNIT FROM AN INSTALLATION DISCONNECT WATER QUICK COUPLINGS AT ROOM UNIT FIRST ...

Страница 2: ...Page 2 ...

Страница 3: ...let to be adjusted vertically and horizontally and in conjunction with the fan speed control switch the air velocity and direction can be carefully set up to obtain maximum coverage of the area being cooled without causing drafts An alternative top pavel with twin 7 ducts is available Adjust able grilles and 7 ducts are not available for machines with a convex console Care should be taken to avoid...

Страница 4: ...inside Also remember that plastic and rubber becomes much more flexible when warm and as a result much more USE THE CHAINS PROVIDED TO SUPPORT THE HEAT EXCHANGER IT WOULD BE HIGHLY DANGEROUS TO SUPPORT THE HEAT EXCHANGER BY MEANS OF THE FLEXIBLE LINES ALONE susceptible to distortion ET15AX Condensate from the room unit is collected in an internal tank and emptied by the user An optional pump kit m...

Страница 5: ...cooling mode before removing the header tank cap and as with all pressure caps remove slowly It is recommended that a mixture by volume of one part antifreeze to two parts water is utilised this will prevent freezing down to an external temperature of 20 C 5 F The approximate total volume of the PAC system complete with heat exchanger and lines is shown below WAC PAC fluid levels are checked at th...

Страница 6: ... R 0 5 R BL 0 5 R B 0 5 R BL 0 5 BLUE FLYING LEAD BLACK FLYING LEAD BROWN FLYING LEAD TERMINAL BLOCK G R 0 5 G R 0 5 S2 MV PAC15 22 HEX UNIT SOCKET TO HEX UNIT BR 0 5 G Y 1 0 E L N B 0 5 B 0 5 BASE EARTH G Y 1 5 G Y 0 75 G Y 1 0 B 0 5 B 0 5 V 0 5 R BR R B L N GRN YEL FLYING LEAD GRN YEL BRN BLU 2 1 5 6 7 8 FAN SPEED CAP C4 16uF HEX WATER PUMP 7 4 9 6 B A 6 3 5 2 1 4 HEX UNIT MV AIR STAT 1 4 HP LP ...

Страница 7: ...OST CHILL BR 1 5 B 1 5 CONTROL FUSE 7A CONDENSATE FUSE 1A BR 1 5 0 5 CONTACTOR B AUX A1 22 BR 0 5 BR 5 B 0 75 BR 0 5 5 W 0 5 BL W 0 5 RELAY No 1 W BL 0 5 P 0 5 P 0 5 P 0 5 O BL 0 5 O 0 5 O 0 5 GR B 0 5 W R 0 5 W R 0 5 B 0 5 G R 0 5 R 0 5 R 0 5 W 0 5 GR 0 5 GR 0 5 BR 0 5 BR 0 75 R 1 5 BL 1 5 FLYING LEAD FLYING LEAD SUMP GREY GREY GREY GREY R BR 0 5 BR 0 5 BL W 0 5 B 0 5 BR 1 5 B 1 5 W R 0 5 B 0 5 W...

Страница 8: ...EVAPORATOR BLU 0 5 GR BLU 0 5 WHT 0 5 MAIN FAN FAST SLOW FAN CAP BRN 0 5 C2 5uF FAN CAP C5 8uF BLU 0 5 BLU 0 5 BLU 0 5 BLU 0 5 RED 0 5 RED 0 5 BLU 0 5 BLU 0 5 ORN 0 5 GRN YEL 1 0 N L CONDENSER RED ORN 0 5 ORN BLK 0 5 MAIN CONDENSER CONDENSER FAN FAN MOTOR MV 2 FAN SPEED CAP C6 25uF GRN YEL BLU BLK BRN FAN SPEED CAP C4 6uF FAN MOTOR MV 1 8 COM 7 N C 6 N O 5 FAULT SIGNAL 4 OUT 3 SIGNAL IN 2 L 1 N PU...

Страница 9: ... 2 3 3 POSN SWITCH DELAY TIMER MAINS DEFROST CHILL WHT 0 5 BLK WHT 0 5 PNK 0 5 BLU 0 5 GRY 0 5 RED BRN 0 5 BRN 0 5 GRN BLU 0 5 BLU 0 5 BRN 1 5 BLU 1 5 WHT RED 0 5 BRN 0 5 BRN 0 5 FAN ONLY COOL AT S1 LP2 LP1 D PAC15 ADJACENT TO COMPRESSOR BLU 0 5 B 1 5 BLU 1 5 BLU 1 5 BLU 1 5 BR 1 5 BRN 1 5 BRN 1 5 R 0 5 W 0 5 W 0 5 W 0 5 R 1 5 RED 1 5 BLK 1 5 BLk 1 5 PNK 1 5 ORN BLK 0 5 ORN BLK 0 5 G Y 1 5 LP3 ORN...

Страница 10: ...EL FLYING LEAD GRN YEL BRN BLU 2 1 5 6 7 8 B 1 5 FAN CAP COMP RUN CAP HARD START CAP BL 1 5 P 1 5 BLACK FLYING LEADS BR 0 5 C3 C1 30uF C2 5uF GR B 0 5 FAULT LAMP FL GR B 0 5 LUG 1 2 3 2 POSN SWITCH FAN SPEED REAR VIEW R BR 0 5 R BL 0 5 R B 0 5 S2 RED WHT 0 5 R BRN R B FAN SPEED CAP C4 16uF WATER PUMP HP LP FS1 FS2 A2 A1 5 3 1 6 4 2 FL MC C1 C3 S R C AUX N C D 6 mins 1 2 4 3 DL 1 2 3 C2 MV CL S2 FT...

Страница 11: ...R B 0 75 BL W 0 5 W BL 0 5 P 0 5 P 0 5 O 0 5 O 0 5 GR B 0 5 W R 0 5 W R 0 5 B 0 5 G R 0 5 R 0 5 W 0 5 GR 0 5 GR 0 5 BR 0 5 BR 0 75 R 1 5 BL 1 5 SUMP GREY GREY GREY GREY BR 0 5 W BL 0 5 B 0 5 BR 1 5 B 1 5 W R 0 5 B 0 5 W R 0 5 B 0 5 W R 0 5 W 0 5 O 0 5 BR 0 5 B 0 5 BR W R 0 5 W 0 5 B 0 5 GR 0 5 B 0 5 WATER PUMP BR 0 75 N C S1 CL DL RL D FT Y FS1 FS2 NOTE ORIENTATION OF SWITCHES B 0 5 A2 W 0 5 1 5 0...

Страница 12: ... BRN 0 5 ORN 0 5 N L TERMINAL BLOCK G Y 1 5 COMPRESSOR COVER ORN BLK 0 5 CONDENSER MAIN BLU 0 5 ORN 0 5 GRN YEL 1 0 R ORN 0 5 O BLK 0 5 BLU 0 5 BLU 0 5 CONDENSER FAN FAN MOTOR MV 2 CONDENSATE PUMP KIT WHEN FITTED MAIN FAN RED BRN 0 5 GRY BLU 0 5 ORN 0 5 O BLK 0 5 R ORN 0 5 FAN MOTOR MV 1 BLK WHT 0 5 RED BLU 0 5 EVAPORATOR FAN SPEED CAP C4 6µF B 1 0 8 COM 7 N C 6 N O 5 FAULT SIGNAL 4 OUT 3 SIGNAL I...

Страница 13: ... 5 GRY BLU 0 5 PNK 0 5 BLK WHT 0 5 VIO 0 5 WHT RED 0 5 WHT RED 0 5 BLU 0 5 PNK 0 5 BLU 0 5 BLU 0 5 R BRN 0 5 R BRN 0 5 R BLK 0 5 5 BRN 0 5 WHT 0 5 BLU 0 5 BLU 0 5 K3 K2 1 2 3 4 5 6 7 8 9 A B GRY BLU 0 5 WHT 0 5 PNK 0 5 BRN 0 5 BLU 0 5 BLU 0 5 PNK 0 5 P 2 AIR STAT AT LUG 1 2 3 C L H C L H 3 6 9 B 2 1 5 8 4 7 A 3 6 9 B 1 4 A 7 6 4 2 22 A2 N C AUX A1 21 5 3 1 F1 3 POSN SWITCH REAR VIEW H MAINS DEFROS...

Страница 14: ... 1 0 BR 0 5 S R C E L N LAMP C3 C1 C2 FL MC TERMINAL BOX G Y G USA BR BL USA B W USA WATER PUMP 6 3 5 2 1 4 AIR STAT 1 4 HP LP FS1 FS2 A2 A1 5 3 1 6 4 2 FL MC C1 C3 S R C AUX N C D 6 mins 1 2 4 3 DL 6 5 4 C2 MV CL S2 FT B Y RL S1 SUMP HEATER F1 F2 COOL FAN ONLY LOW HIGH IN N COM NC IN L OUT NO PUMP CONTROLLER TIME MP DELAY HEX UNIT L N G R 0 5 G R 0 5 BLUE BROWN BLACK YELLOW GREEN G Y 0 5 W 0 5 BR...

Страница 15: ... 5 BR 0 5 W 0 5 BL W 0 5 W BL 0 5 P 0 5 P 0 5 P 0 5 O BL 0 5 O 0 5 O 0 5 GR B 0 5 W R 0 5 W R 0 5 B 0 5 G R 0 5 G R 0 5 R 0 5 R W 0 5 GR 0 5 GR 0 5 BR 0 5 BR 0 5 BR 1 0 R B 0 5 R B 0 5 R BL 0 5 BLUE FLYING LEAD BLACK FLYING LEAD WHITE BROWN BR 0 5 RED NOT USED R 1 5 BL 1 5 FLYING LEAD FLYING LEAD SUMP GREY GREY GREY GREY R BR 0 5 BR 0 5 W BL 0 5 B 0 5 BR 1 5 B 1 5 W R 0 5 B 0 5 W R 0 5 G Y 1 0 G Y...

Страница 16: ...DEFROST LAMP CL CHILL LAMP RL MAINS OR RUN LAMP S2 FAN SPEED SWITCH F1 CONTROL FUSE F2 CONDENSATE FUSE FS1 FLOAT SWITCH HIGH LEVEL FS2 FLOAT SWITCH LOW LEVEL HP LP D K MC MV C1 C2 Y AT LOW PRESSURE SWITCH DELAY TIMER RELAY COMPRESSOR MOTOR FAN MOTOR COMPRESSOR CAPACITOR FAN CAPACITOR SOLENOID VALVE AIR THERMOSTAT HIGH PRESSURE SWITCH MP CONDENSATE PUMP C3 HARD START CAPACITOR S3 FAN SPEED SWITCH D...

Страница 17: ... 5 BR 1 5 BR 1 5 B 0 5 B 0 5 W R 0 5 W R 0 5 W R 0 5 W R 0 5 B 0 5 B 0 5 R BR 0 5 W R 0 5 G R 0 5 G R 0 5 W 0 5 GR 0 5 B 0 5 R 0 5 BR 0 5 BR 0 5 BR 0 5 P 0 5 O BL 0 5 W 0 5 W BL0 5 W BL0 5 W BL0 5 O 0 5 BLUE 4 5 6 1 2 3 3 POSN MODE SWITCH S1 FAN ONLY COOL BR 1 0 R 0 5 BR 0 5 BR 0 5 BR 0 5 W BL 0 5 W 0 5 W BL0 5 BLUE BLUE P 0 5 GREY GREY GREY GREY FLY LEADS B 0 5 B 0 5 B 0 5 B 0 5 B 0 5 B 0 5 B 0 5...

Страница 18: ...CKWISE to the number 8 position b Plug in the room unit mains cable and switch on electricity red mains light will illuminate c Select Fan Only with the mode switch The fan will start d Select Fan Speed with the fan speed switch high or low depending on air velocity required e Select Cooling with the mode switch and revolve the thermostat knob fully ANTICLOCKWISE to the number 1 position If fitted...

Страница 19: ...URE RED RED HIGH PRESSURE RE SET LOW PRESSURE RE SET FAN ONLY POSITION COOLING POSITION OFF POSITION FAN SPEED LOW FAN SPEED SWITCH FAN SPEED HIGH e The PAC22 MK3 is fitted with a digital thermostat which is factory preset at 28ºC With the PAC set like this the PAC starts to cool at 29ºC and will stop cooling at 28ºC Changing the set point Thermostat marked TLZ11 TLZ 11 Thermostat Press P button o...

Страница 20: ...is fitted to optional ducting The switch is situated in the electric box and is accessed by removing the upper back panel It needs to be set to the 3 position Use of the switch in this position 3 without ducting fitted will result in failure of the PAC causing blown fuses or burning out of the fan motor ...

Страница 21: ...STALLATION LINESET FROM PAC THIS SIDE WALL WALL FIT FULL PLATE FIRST 265 75 4 HOLES DIA 6mm TOP BOTTOM INSIDE WALL OUTSIDE WALL TOP BOTTOM POSITION FOR A PADLOCK TO SECURE LID TO BOX IF DESIRED 35 The PAC22MK3 has an optional wall plate kit which is installed in the following way Please note Fixings provided are for securing the kit to a brick wall ...

Страница 22: ...e whole rear face of the grille The filter see Fig 4 can be washed in warm soapy water rinsed and shaken dry before replacement Frequency of cleaning depends upon application and can only be determined by the user However you should never allow more than two months to elapse between cleaning The probable life of the filter will be about one year and spares are available from the supplier of the un...

Страница 23: ...glycol 33 or 50 in PAC HEX6500AHXS External heat exchanger coil blocked with dirt clean Air cooled units lack of air flow from exhaust kinked or blocked duct duct too long Problem No Cooling Diagnosis Amber ATTENTION PAC22mk3 Red Low Pressure fault lig light illuminated Low pressure trip Cure Press button to re set and check for No air flow blocked filter Evaporator blocked with ice Very low air t...

Страница 24: ...mp Amber 11 ERROR CODES ASSOCIATED WITH DIGITAL THERMOSTAT TLZ11 THERMOSTAT DISPLAY ERROR ACTION E1 OR E1 PROBE INTERRUPTED OR SHORT CIRCUIT VERIFY CORRECT CONNECTION BETWEEN PROBE AND STAT THEN VERIFY CORRECT FUNCTIONING OF PROBE EEPr INTERNAL MEMORY ERROR CHECK AND IF NECESSARY REPROGRAMME THE PARAMETERS FUNCTION ...

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Страница 28: ...Page 28 AIR TREATMENT DIVISION Andrew Sykes Hire Limited Premier House Darlington Street Wolverhampton WV1 4JJ Telephone 01902 328700 Fax 01902 422466 ...

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