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CAA HOC045C3AB Installation, Start-Up And Service Manual

Horizontal split air conditioners 2 stage designs with splat lt2 controllers
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Installation, Start-up
 
 
 
 
 
 
I. Safety Considerations 
 
II. Start‐Up 
 
III. Pre‐installation 
 
IV. Installation 
 
V. Splat LT2 Controller 
General description 
 
VI. LT2 Controller Layout & Functions 
a. Speed up 
b. Setup Menu 
c. Dash Board Screens 
d. Idle Screen 
e. Fault History 
 
VII. Trouble Shooting 
 
 
 
 
Horizontal Split Air
 
and

Service Manual

CONTENTS
Page 1 of 42
Conditioners
2 stage designs
with
Splat LT2 Controllers
 
VIII. Service / Maintenance 
 
IX. Installation drawing 
 
X. Wiring diagrams 
 
XI. Specification sheets 
 
XII. Test information page 
 
XIII. Appended data for option units (Optional) 
 
 
IM-HOA 2 ST Rev 2.0 - 21/07/2013

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Summary of Contents for CAA HOC045C3AB

  • Page 1: Service Manual

      Horizontal Split Air     Conditioners     2 stage designs   with     Splat LT2 Controllers     Installation, Start-up           Service Manual   CONTENTS   VIII. Service / Maintenance  I. Safety Considerations      IX. Installation drawing  II.
  • Page 2 I. SAFETY CONSIDERATIONS Before installation, please read carefully these precautions and warnings for safety. The unit is designed to provide safe and reliable service when operated within design specifications. To avoid injury to personnel and damage to equipment or property when operating the equipment, the following safe practices should be observed as a minimum.
  • Page 3 III. Installation Location The equipment must be installed in accordance with relevant authority requirements. Position the unit on a solid, level mounting pad ensuring adequate service access as outlined on the Installation Drawing attached. Level and fasten the units, making sure that access panels close easily and are able to be removed.
  • Page 4 4. Electrical All electrical work must be carried out by a qualified and licensed electrician. The installation must comply with the current relevant standards wiring rules and local authority requirements. Wire sizing is the responsibility of the installer, as it depends on the conditions and regulations applicable to each installation site.
  • Page 5 LT2 CONTROLLER LAYOUT & FUNCTIONS   There are four buttons located below the LCD display screen which are: SPEED UP, SETUP, TRIP VIEW and TRIP STEP. a. SPEED UP: Press and release the <SPEED UP> button quickly to turn on or turn off the speed up mode. The LED next to it will light up if the speed up is active.
  • Page 6 b. SETUP Menu: The setup menu can only be activated from an idle screen (See d below). Once the setup menu is active, the buttons possess the following functions: - <SPEEDUP>: Scroll to previous menu item. - <SETUP>: Scroll to next menu item. - <TRIP VIEW>: Softkey –...
  • Page 7 Press the <SETUP> button again. “HVAC type” is displayed allowing the user to choose between a “Cool Only” or “Heat pump” (Reverse cycle) system. Press <TRIP STEP> to toggle between “Cool Only” or “Heat & Cool”. Press the <SETUP> button again for “Comp selection”...
  • Page 8 Press <SETUP> button again to give access to “Current transfmr”. This enables the user to set the presence of a Current transformer (CT). The use of a CT is purely for information. It does not control anything in the system. Press <TRIPSTEP>...
  • Page 9 d. Idle Screen When the controller is powered and no buttons are being pressed, the screen will read out the current operating status of the controller. Typically the screen will look like this: S1 C1 = xxx C2 = xxx S2 C2 = xxx C2 = xxx "S1"...
  • Page 10 VII. Trouble shooting Fault Code Displaying Symptom(s) Part(s) to check and How to correct the fault(s) C1=Off C2=Off The compressors and The compressors are off and no calls are C1=Off C2=Off Outdoor Fans are off. pending. Indoor fan is running. C1=Tmr C2=Tmr The compressors and...
  • Page 11 C1=Off C2=Flt Outdoor Fans are off. but isn't any longer. It is now waiting for the Indoor fan running. call to be removed to reset the fault and permit it to run again. C1=Tmr C2=Tmr The compressors and The compressor 2 of stage 2 has been in overload C1=Tmr C2=Flt Outdoor Fans are off.
  • Page 12 Electrical wiring diagram to correct it. (When <TRIP VIEW> is pressed) If the CT (Current transformer) is NOT fitted. Wrong Menu set up. Go to Menu set up for CAA controller and change parameter setting of “Current transfmr” as “Not Fitted” then save that change.
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  • Page 37 SPECIFICATION  SPLIT HORIZONTAL UNITS  HOC045C3AB (OD) HOC055C3AB (OD) MODELS  Cool Only  & HIA045C3AA (ID)  & HIA055C3AA (ID)  Heat Pump  HOC045R3AB (OD) HOC055R3AB (OD) & HIA045R3AA (ID)  & HIA055R3AA (ID)    CABINET          Construction  Powder coated  Powder coated      Gal.Steel  Gal.Steel  Drip Tray  Aluminium  Aluminium      340 / 675  340 / 675      Weight (kg) HIA / HOC        COMPRESSOR ...
  • Page 38 SPECIFICATION  SPLIT HORIZONTAL UNITS  HOA045C3AB (OD) HOA055C3AB (OD) MODELS  Cool Only  & HIA045C3AA (ID)  & HIA055C3AA (ID)  Heat Pump  HOA045R3AB (OD) HOA055R3AB (OD) & HIA045R3AA (ID)  & HIA055R3AA (ID)    CABINET          Construction  Powder coated  Powder coated      Gal.Steel  Gal.Steel  Drip Tray  Aluminium  Aluminium      340 / 600  340 / 600      Weight (kg) HIA / HOA        COMPRESSOR   ...
  • Page 39 SPECIFICATION  PACKAGED HORIZONTAL UNITS  HOC065C3AB (OD) HOC075C3AB (OD) MODELS  Cool Only  & HIA065C3AA (ID)  & HIA075C3AA (ID)  Heat Pump  HOC065R3AB (OD) HOC075R3AB (OD) & HIA065R3AA (ID)  & HIA075R3AA (ID)    CABINET          Construction  Powder coated  Powder coated      Gal.Steel  Gal.Steel  Drip Tray  Aluminium  Aluminium      410 / 780  410 / 780      Weight (kg) HIA / HOC        COMPRESSOR ...
  • Page 40 SPECIFICATION  SPLIT HORIZONTAL UNITS  HOA065C3AB (OD) MODELS  Cool Only  & HIA065C3AA (ID)  Heat Pump  HOA065R3AB (OD) & HIA065R3AA (ID)    CABINET          Construction  Powder coated        Gal.Steel  Drip Tray  Aluminium        410 / 700        Weight (kg) HIA / HOA        COMPRESSOR          Scroll   ...

  • Page 41: Specifications

    SPECIFICATIONS  SPLIT HORIZONTAL UNITS  Cool Only  HOC090C3AB (OD) HOC100C3AB (OD) HOC115C3AB (OD)  HOC120C3AB (OD) MODELS  & HIA090C3AA (ID)  & HIA100C3AA (ID)  & HIA115C3AA (ID)  & HIA120C3AA (ID) HOC090R3AB (OD) HOC100R3AB (OD) HOC115R3AB (OD)  HOC120R3AB (OD) Heat Pump  & HIA090R3AA (ID)  & HIA100R3AA (ID)  & HIA115R3AA (ID)  & HIA120R3AA (ID)   CABINET   Construction  Powder coated Gal.  Powder coated Gal.  Powder coated Gal.  Powder coated Gal.  Steel  Steel  Steel  Steel  Drip Trays  Aluminium  Aluminium  Aluminium ...
  • Page 42 Test data sheet Unit Model Unit ser no Refrigerant type Refrigerant Charge System indoor coil airflow Notes Mode Cool Heat Indoor RA DB Indoor RA WB Indoor SA DB Indoor SA WB Outdoor RADB Outdoor RAWB Stage 1 Stage 2 Stage 1 Stage 2 Discharge pressure Suction pressure Compressor discharge Compressor sat. discharge temp. Liquid line temp. Compressor sat suction temp. Compressor suction temp. Compressor sump temp. Liquid line subcooling Suction superheat Sump superheat Red White Blue Red White Blue Red White Blue Red White Blue Volts Amps...

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