technical bulletin tb005m10 - acson international 2010/tb005m10.pdfmodel: m(4)ac040/050/060c/cr,...

Technical Bulletin TB005M10

Brand : McQuay From : OYLM SERVICE

Model : M(4)(5)AC020/025/030/040/050/060C/CR, M5ACV 030/055/075C/CR

Date : 24/5/10

Product : Mini Chiller, Inverter Mini Chiller To : All McQuay distributors

Type : Outdoor Unit

©2010 McQuay International

A) PURPOSE OF CHANGE

Alternative source of better quality fan motor. Current supplier is not able to meet factory requirement on fan motor quality improvement as from time to time unqualified fan motor could be detected in in-house production line.

B) DETAILS OF CHANGE

Direct drop-in-replacement for current market sold units is impossible. However, working instructions for necessary modifications was attached at Section (E) for reference. At the same time, new nomenclatures are created to align with this alteration. For detailed part changes, please refer to section (D).

Mini Chiller Cooling Only

Existing Nomenclature

New Nomenclature Existing Nomenclature

New Nomenclature

MAC020C-AXAC MAC020C-AXAE M4AC020C-AXAC-R M4AC020C-AXAE-R MAC020C-AXAD MAC020C-AXAF M4AC020C-AXAD-R M4AC020C-AXAF-R MAC025C-AXAC MAC025C-AXAE M4AC025C-AXAC-R M4AC025C-AXAE-R MAC025C-AXAD MAC025C-AXAF M4AC025C-AXAD-R M4AC025C-AXAF-R MAC030C-AXAC MAC030C-AXAE M4AC030C-AXAC-R M4AC030C-AXAE-R MAC030C-AXAD MAC030C-AXAF M4AC030C-AXAD-R M4AC030C-AXAF-R MAC040C-FXAC MAC040C-FXAE M4AC040C-FXAC-R M4AC040C-FXAE-R MAC040C-FXAD MAC040C-FXAF M4AC040C-FXAD-R M4AC040C-FXAF-R MAC040C-FXBB MAC040C-FXBD M4AC050C-FXAC-R M4AC050C-FXAE-R MAC040C-FXBC MAC040C-FXBE M4AC050C-FXAD-R M4AC050C-FXAF-R MAC050C-FXAC MAC050C-FXAE M4AC060C-FXAC-R M4AC060C-FXAE-R MAC050C-FXAD MAC050C-FXAF M4AC060C-FXAD-R M4AC060C-FXAF-R MAC050C-FXBB MAC050C-FXBE MAC050C-FXBC MAC050C-FXBF MAC060C-FXAC MAC060C-FXAE MAC060C-FXAD MAC060C-FXAF MAC060C-FXBB MAC060C-FXBD MAC060C-FXBC MAC060C-FXBE

Mini Chiller Heatpump

Existing Nomenclature

New Nomenclature Existing Nomenclature

New Nomenclature

MAC020CR-AXAB MAC020CR-AXAC M5AC020CR-AXAA-R M5AC020CR-AXAB-R MAC025CR-AXAB MAC025CR-AXAC M5AC025CR-AXAA-R M5AC025CR-AXAB-R MAC030CR-AXAB MAC030CR-AXAC M5AC030CR-EXAB-R M5AC030CR-EXAC-R MAC040CR-FXAC MAC040CR-FXAE M5AC040CR-EXAC-R M5AC040CR-EXAD-R MAC050CR-FXAC MAC050CR-FXAD M5AC050CR- EXAC-R M5AC050CR- EXAD-R MAC060CR-FXAC MAC060CR-FXAD M5AC055CR- EXAC-R M5AC055CR- EXAD-R

M4AC060CR-FXAB-R M4AC060CR-FXAC-R Inverter Mini Chiller

Existing Nomenclature New Nomenclature M5ACV030CR-AXAA-R M5ACV030CR-AXAB-R M5ACV055CR-FXAB-R M5ACV055CR-FXAC-R

C) IMPLEMENTATION DATE Starting from batch 20531204.

D) CHANGE OF PARTS (IF ANY) Model: M(4)(5)AC020/025/030C/CR, M5ACV020/025/030CR

Existing Part New Part Part No. Description Qty Part No. Description Qty

R50039019117 ASSY MORRILL MOTOR

1 R50014108056 ASSY PANEL ORIFICE

1

R04029026757 CAPACITOR 3.0Uf 1 R01014108062 SUPPORT MOTOR BRACKET

2

R50014108059 ASSY, MOTOR BRACKET

1

R01014110106 SUPPORT, BRACKET

1

R04029026759 CAPACITOR 3.5uF 1 R03039034369 MOTOR,4/5 AC-

C/CR 70W 1

R03019023393 FAN PROPELLER, DIA 460

1

R01024108189 FAN GUARD, 4/5 AC-C/CR

1

Model: M(4)AC040/050/060C/CR, M5AC040/050/055CR, M5ACV055/075CR

Existing Part New Part

Part No. Description Qty Part No. Description Qty R50039019117 ASSY MORRILL

MOTOR 2 R50014108076 ASSY PANEL

ORIFICE 1

R04029026757 CAPACITOR 3.0Uf 2 R01014108067 SUPPORT MOTOR BRACKET

2

R50014108059 ASSY, MOTOR BRACKET

2

R01014110106 SUPPORT, BRACKET

1

R04029026759 CAPACITOR 3.5uF 2 R03039034369 MOTOR,4/5 AC-

C/CR 70W 2

R03019023393 FAN PROPELLER, DIA 460

2

R01024108189 FAN GUARD, 4/5 AC-C/CR

2

(E) REMARKS – WORKING INSTRUCTION Model: M(4)(5)AC020/025/030C/CR, M5ACV020/025/030CR


Overview of Related Components

STEP 1: FRONT PANEL - Unscrew and dismantle Assy. Panel Front Right from the unit. - Unscrew and dismantle Assy. Front Panel from the unit. - Disconnect fan motor wiring from the control box.

Model: M(4)(5)AC020/025/030C/CR, M5ACV020/025/030CR


STEP 2: BASE PAN - Drill four holes on the base pan by following the below dimension.



STEP 3: PANEL PARTITION - Drill two holes at panel partition by following the dimension below.



STEP 4: SUPPORT, MOTOR BRACKET - Install and screw the motor bracket support on the base pan.


STEP 5: ASSY, MOTOR BRACKET

- Install and screw the motor bracket support with the panel partition. - Screw the Assy. motor bracket onto the motor bracket support.


STEP 6: MOTOR, FAN - Install fan motor onto Assy. motor bracket.



STEP 7: FAN PROPELLER AND PANEL ORIFICE - Fix the fan propeller onto the motor. - Install and screw the Assy. Panel Orifice onto the unit.



STEP 8: FAN GUARD - Fix and install the fan guard onto the unit.



STEP 9: CONTROL BOX - Replace old fan motor capacitor (3.0uF) with new fan motor capacitor (3.5uF).



STEP 10: WIRING CONNECTION - Change wiring connection of fan motor capacitor by following the below wiring diagram.



technical bulletin tb005m10 - acson international 2010/tb005m10.pdfmodel: m(4)ac040/050/060c/cr,...

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