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 Unit Parts 

 And Major 

Functions

 Page 8 

Energy Saving Tips

• 

DO NOT 

set the unit to excessive temperature levels.

 

• 

While cooling, close the curtains to avoid direct sunlight. 

• 

Doors and windows should be kept closed to keep cool or warm air in the room. 

• 

DO NOT 

place objects near the air inlet and outlet of the unit. 

 

• 

Set a timer and use the built-in SLEEP/ECONOMY mode if applicable.

• 

If you don’t plan to use the unit for a long time, remove the batteries from the remote control. 

• 

Clean the air filter every two weeks. 

• 

Adjust louvers properly and avoid direct airflow.

The air conditioner turns to FAN ONLY 

mode from COOL or HEAT (for cooling and 

heating models only) mode.

When the indoor temperature reaches the set 

temperature setting, the compressor will stop 

automatically, and the air conditioner turns to 

FAN only mode. The compressor will start again 

when the indoor temperature rises on COOL

mode or falls on HEAT mode to the set point.

Droplets of water may form on the surface of 

the indoor unit when cooling occurs in relatively 

high humidity (defined as higher than 80%). 

Adjust the horizontal louver to the maximum air 

outlet position and select HIGH fan speed.

Heating mode (for cooling and heating 

models only)

The air conditioner draws in heat from the 

outdoor unit and releases it via the indoor unit 

during heating. When the outdoor temperature 

falls, heat drawn in by the air conditioner 

decreases accordingly. At the same time, heat 

loading of the air conditioner increases due to 

larger difference between indoor and outdoor 

temperature. If a comfortable temperature 

cannot be achieved with the air conditioner 

alone, it is recommended that you use a

supplementary heating device.

Lightning or a car wireless telephone operating 

nearby may cause the unit to malfunction. 

Disconnect the unit from its power source and 

then re-connect the unit with the power source 

again. Push the ON/OFF button on the remote 

controller to restart operations.

Closing curtains during heating also

              helps keep the heat in  

Doors and windows should be kept 

                        closed  

Summary of Contents for CHDZ-24-12-12

Page 1: ...arefully before installing or operating your new air conditioning unit Make sure to save this manual for future reference This manual only describes features of the OUTDOOR UNIT in depth When looking...

Page 2: ...stallation Instructions 09 B Drain Joint Installation 11 C Notes on Drilling the Hole in the Wall 11 D When Selecting a 24K Indoor Unit 11 Table of Contents Installation Manual Installation Diagram 07...

Page 3: ...nnection 12 Wiring 14 A Outdoor Unit Wiring 14 B Wiring Figure 16 Air Evacuation 20 A Evacuation Instructions 20 B Note on Adding Refrigerant 21 22 23 Test Run Function of Automatic Wiring Piping Corr...

Page 4: ...r connector packed with the indoor unit or outdoor unit depending on the model NOTE Pipe sizes differ from appliance to appliance To meet different pipe size requirements sometimes a transfer connecto...

Page 5: ...your unit and locate it accordingly Failure to do so could cause damage to the unit After installation ensure there are no refrigerant leaks and that the unit is operating properly Refrigerant is toxi...

Page 6: ...Unit Installation Overview L N 1 2 3 MC MC 4 5 INSTALLATION ORDER Install the outdoor unit Page 9 Evacuate the refrigeration system Page 20 Connect the wires Page 14 Connect the refrigerant pipes Pag...

Page 7: ...nt unnecessary damage to the wall use a stud finder to locate studs A minimum pipe run of 9 8 ft 3 m is required to minimize vibration and excessive noise Two of the A B and C directions should be fre...

Page 8: ...47 6 45 Max length for one indoor unit 65 6 20 82 25 Max height different between indoor and outdoor unit OU higher than IU 32 8 10 32 8 10 OU lower than IU 49 15 49 15 Max height difference between i...

Page 9: ...tween the outdoor and indoor units must not exceed the maximum allowable pipe length If possible DO NOT install the unit where it will be exposed to direct sunlight If possible make sure the unit is l...

Page 10: ...12 6 22 560 13 2 335 900 x 860 x 315 35 4 x 33 85 x 12 4 23 2 590 13 1 333 945 x 810 x 395 37 2 x 31 9 x 15 55 25 2 640 15 95 405 990 x 965 x 345 38 98 x 38 x 13 58 24 58 624 14 4 366 946 x 810 x 420...

Page 11: ...al on the end of the drain joint that will connect to the outdoor unit 2 Insert the drain joint into the hole in the base pan of the unit 3 Rotate the drain joint 90 until it clicks in place facing th...

Page 12: ...nsulate the gas and liquid piping to prevent water leakage Step1 Cut pipes When preparing refrigerant pipes take extra care to cut and flare them properly This will ensure efficient operation and mini...

Page 13: ...hten the flare nut as tightly as possible by hand 4 Using a spanner grip the nut on the unit tubing 5 While firmly gripping the nut use a torque wrench to tighten the flare nut according to the torque...

Page 14: ...of the power cord or use an extension cord CAUTION Connect the outdoor wires before connecting the indoor wires Make sure to ground the unit The grounding wire should be away from gas pipes water pipe...

Page 15: ...he wiring diagram found inside the electrical box cover 2 Remove the electric cover of the outdoor unit If there is no cover on the outdoor unit disassemble the bolts from the maintenance board and re...

Page 16: ...minals as identified with their respective matched numbers on the terminal block of the indoor and outdoor units For example see the following US models Terminal L1 A on the outdoor unit must connect...

Page 17: ...ring NOTE If the client wants to perform the wiring himself refer to the following figures One three models One four models Model A Model B Model C Model D Model A Model B Model C Model D Model E Mode...

Page 18: ...Page 18 Wiring One five models Model A Model B Model C Model D Model E Model F Model G...

Page 19: ...oist area from vibrations to which the unit will be subjected during the course of transportation Check to make sure they are all tightly fastened If they are loose the wires could burn out The follow...

Page 20: ...wise a 1 4 turn Listen for gas to exit the system then close the valve after 5 seconds Flare nut Cap Valve body Valve stem Fig 9 2 9 Watch the Pressure Gauge for one minute to make sure that there is...

Page 21: ...gth standard pipe length x N x 0 16 oZ ft Liquid Side 9 52 3 8 Total pipe length standard pipe length x N x 30 g m Total pipe length standard pipe length x N x 0 32 oZ ft Electrical safety check Perfo...

Page 22: ...p valves 2 Turn on the main power switch and allow the unit to warm up 3 Set the air conditioner to COOL mode 4 For the indoor unit A Ensure the remote control and its buttons work properly B Ensure t...

Page 23: ...te This Function 1 Check that the outside temperature is above 41 F 5 C This fuction does not work when the outside temperature is not above 41 F 5 C 2 Check that the stop valves on the liquid and gas...

Page 24: ......

Page 25: ...fully before installing or operating your new air conditioning unit Make sure to save this manual for future reference This manual only describes features of the OUTDOOR UNIT in depth When looking for...

Page 26: ...Unit Parts and Major Functions 05 Manual Operation and Maintenance 09 Table of Contents Owner s Manual SAFETY FIRST Safety Precautions 04 1 2 3...

Page 27: ...Page 3 Troubleshooting 10 a Common Problems 10 b Troubleshooting Tips 11 4...

Page 28: ...may result in death The appliance must be installed in accordance with national regulations Failure to observe a caution may result in injury or equipment damage WARNING CAUTION DO NOT place items tha...

Page 29: ...5 Horizontal louver 6 LCD display window 7 Vertical louver 8 Manual control button behind 9 Remote controller holder Outdoor unit 10 Drain hose refrigerant connecting pipe 11 Connective cable 12 Stop...

Page 30: ...Remote controller 4 Installation part 5 Display panel Outdoor unit 6 Drain hose refrigerant connecting pipe 7 Connective cable 8 Stop valve 9 Fan hood Fig 2 4 Indoor unit 1 Drain pump drain water from...

Page 31: ...rns the Operation light on the indoor unit will flash To restart the unit press the ON OFF button on the remote control If the system has an auto restart function the unit will restart with the same s...

Page 32: ...e set point Droplets of water may form on the surface of the indoor unit when cooling occurs in relatively high humidity defined as higher than 80 Adjust the horizontal louver to the maximum air outle...

Page 33: ...unit periodically Contact a local dealer or a customer service centre if the unit requires servicing When the air conditioner is to be used again Use a dry cloth to wipe off the dust accumulated on th...

Page 34: ...its setting to prevent frost from forming on the unit Once the temperature increases the unit will start operating again The set temperature has been reached at which point the unit turns off the comp...

Page 35: ...indoor or outdoor unit is dirty Clean the affected heat exchanger The air filter is dirty Remove the filter and clean it according to instructions The air inlet or outlet of either unit is blocked Tur...

Page 36: ...rge the heat to the room The heating capacity decreases as the outdoor temperature decreases During extreme cold outdoor temperatures you may need an additional heating source to supplement the heatin...

Page 37: ...s can stick to coil fins and make the unit work up to 15 harder 5 Rearrangethe room Furniture that obstructs airflow means you could be heating and cooling the back of a chair or the front of a sofa i...

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