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32801002001                                                                            Specifications subject to change without notice.                                                                                         

25

TEST RUN

BEFORE THE TEST RUN

A test run must be performed after the entire system has been 
completely installed. Confirm the following points before performing 
the test.

a.

Indoor and outdoor units are properly installed.

b.

Piping and wiring are properly connected.

c.

There are no obstacles near the unit’s inlet and outlet that 
might cause poor performance or product malfunction.

d.

Refrigeration system does not leak.

e.

Drainage system is unimpeded and draining to a safe 
location.

f.

Heating insulation is properly installed.

g.

Grounding wires are properly connected.

h.

Length of the piping and additional refrigerant stow 
capacity have been recorded.

i.

Power voltage is the correct voltage for the system.

 Test Run Instructions

1. Open both the liquid and gas stop valves.
2. Turn on the main power switch and allow the unit to warm up.
3. Set the air conditioner to the

 COOL

 mode.

4. For the indoor unit:

a.

Double check to see if the room temperature is being 
registered correctly.

b.

Ensure the manual buttons on the indoor unit work 
properly.

c.

Ensure the drainage system is unimpeded and draining 
smoothly.

d.

Ensure there is no vibration or abnormal noise during 
operation.

5. For the outdoor unit:

a.

Check to see if the refrigeration system is leaking.

b.

Ensure there is no vibration or abnormal noise during 
operation.

c.

Ensure the wind, noise, and water generated by the unit do 
not disturb neighbors or pose a safety hazard.

6. Drainage Test

a.

Ensure the drainpipe flows smoothly. New buildings should 
perform this test before finishing the ceiling.

b.

Remove the test cover. Add 2,000 ml of water to the tank 
through the attached tube.

c.

Turn on the main power switch and run the air conditioner 
in the 

COOL

 mode.

d.

Listen to the drain pump to detect if it makes any unusual 
noises or sounds.

e.

Check to see that the water is discharged. It may take up to 
one minute before the unit begins to drain depending on the 
drainpipe.

f.

Ensure there are no leaks in any of the piping.

g.

Stop the air conditioner. Turn off the main power switch 
and reinstall the test cover.

NOTE: 

If the unit malfunctions or does not operate according to 

your expectations, please refer to the Troubleshooting section of the 
owner’s manual before calling customer service.

SYSTEM CHECKS

1. Conceal the tubing where possible.
2. Ensure the drain tube slopes downward along its entire length.
3. Ensure all tubing and connections are properly insulated.
4. Fasten the tubes to the outside wall, when possible.
5. Seal the hole through which the cables and tubing pass.

INDOOR UNIT

1. Do all the remote controller buttons function properly?
2. Do the display panel lights work properly?
3. Does the drain work?

Explain the following items to customer (with the aid of the 

owner’s manual):

1. How to turn air conditioner 

ON

 and 

OFF

2. How to select 

COOLING

HEATING

 and other the operating 

modes;

3. How to set a desired temperature; 
4. How to set the timer to automatically start and stop air conditioner 

operation; 

5. How to control all the other features of the remote controller and 

display panel.

6. How to remove and clean the air filter.
7. Unit care and maintenance.

Present the owner’s manual and installation instructions to the 

customer.

START-UP PROCEDURES

Refer to outdoor unit’s installation instructions for system start-up
instructions.

CARE AND MAINTENANCE

To continue high performance and minimize possible equipment 
failure, it is essential that periodic maintenance be performed on this 
equipment. Consult your local dealer as to the proper frequency of 
maintenance contract.

The ability to properly perform maintenance on this equipment 
requires certain mechanical skills and tools. If you do not possess 
these, contact your dealer for maintenance. The only consumer service 
recommended or required is filter replacement or cleaning on a 
monthly basis.

Failure to perform the test run may result in unit damage, property 
damage, or personal injury.

CAUTION

UNIT COMPONENT HAZARD

Failure to follow this caution may result in product damage. Never 
operate the unit without a filter. Damage to the blower motor or 
coil may occur. For those applications where access to an internal 
filter is impractical, a field-supplied filter must be installed in the 
return duct system.

CAUTION

Summary of Contents for DLFLAA

Page 1: ...work gloves Have a fire extinguisher available Read these instructions thoroughly and follow all warnings or cautions included in the literature and attached to the unit Consult local building codes a...

Page 2: ...allation parts and accessories to install the system Improper installation may result in water leakage electrical shock and fire or cause the equipment to fail Keep the installation manual in a safe p...

Page 3: ...84 11 8 299 13 3 339 3 0 75 2 5 64 4 9 124 6 8 174 1 7 44 A HEIGHT 48 1 1222 C WIDTH 19 7 501 4 8 121 2 4 61 6 7 171 2 2 57 D DUCT 18 2 462 E DUCT 10 3 262 B DEPTH 21 1 535 0 8 21 0 5 13 0 6 16 18 4...

Page 4: ...med according to the installation instructions Improper installation can cause water leakage electrical shock or fire In North America installation must be performed in accordance with the requirement...

Page 5: ...t is installed over a finished ceiling and or living area building codes may require a field supplied secondary condensate pan to be installed under the entire unit Some localities may allow as an alt...

Page 6: ...t 5 Install the drain lines Fig 7 Vertical Upflow Installations Fig 8 Horizontal Right Installations NOTE For a horizontal right installation secondary condensate pan field supplied must be installed...

Page 7: ...d drain pan assembly 9 Reinstall the pipe temperature sensor in its original position Attach the room temperature sensor to the evaporator output pipe protection sleeve Fig 15 Reinstall the Pipe Tempe...

Page 8: ...uipped with the electric auxiliary heat module please check the electric auxiliary heat module specification that is compatible with the unit to avoid unnecessary consequences caused by improper match...

Page 9: ...into the opening made by removal of the sheet metal cover s Ensure the two support rod ends are on the opposite bulkhead Fig 24 Insert Heating Module 5 Use the 3 screws 6 screws for 15K or 20K remove...

Page 10: ...quirements and local codes see Table 6 on page 11 Choose the power cord and the power cord installation location see Figure 30 Each circuit breaker group needs to connect to the power input line Where...

Page 11: ...do not have a 90 degree elbow and 10ft 3m of main duct to first branch takeoff may require internal acoustical insulation lining As an alternative fibrous ductwork may be used if constructed and insta...

Page 12: ...ood 2 Use a 2 5in 65mm core drill to drill a hole in the wall Make sure the hole is drilled at a slight downward angle so that the outdoor end of the hole is lower than the indoor end by about 0 5in 1...

Page 13: ...g an airtight seal a After removing the burrs from the cut pipe seal the ends with PVC tape to prevent foreign materials from entering the pipe b Sheath the pipe with insulating material c Place flare...

Page 14: ...nder to prevent kinking or damaging the tubing 6 After connecting the copper pipes to the outdoor unit wrap the power cable signal cable and the piping together with binding tape NOTE While bundling t...

Page 15: ...ost positive way of assuring a system is free of air and moisture see Fig 49 NOTE DO NOT add a filter line drier Fig 49 Deep Vacuum Graph Triple Evacuation Method The triple evacuation method should b...

Page 16: ...it would lose power A disconnect switch is not required on the indoor unit side on the wiring between the outdoor and indoor unit A 3 pole disconnect purchased separately may be used for extra protect...

Page 17: ...e is a ground wire To minimize voltage drop the factory recommended wire size is 14 2 power stranded with a ground Communication Wiring A separate 2 wire cable stranded shielded copper conductor with...

Page 18: ...0 5 0 20 120 36 5 0 42 250 48 5 0 65 400 3 S 1 L1 2 L2 208 230 1 60 Power Supply Main 1 L1 208 230 1 60 2 L2 3 S 1 L1 2 L2 CONNECTING CABLE OUTDOOR TO INDOOR Indoor Unit Power Supply 208 230 1 60 Indo...

Page 19: ...Indoor Unit Control Box Sizes 36 48 LED Display The control displays active faults codes on the LED display When the control displays the fault code and the LED flashes quickly there is something wro...

Page 20: ...nnected b Turn off the power to the indoor and outdoor units for 3 minutes c Turn the power back on Wait 1 minute and check the 24 volt Interface digital display If the display reads 00 then proceed I...

Page 21: ...troller exits the MODIFICATION mode After you power OFF the unit power the unit ON again and the unit retains the setting value Fig 65 RG57 Remote Controller FP Activate Disable freeze protection func...

Page 22: ...1 400 1 310 1 215 1 105 950 825 Low 1 525 1 450 1 372 1 280 1 190 1 074 935 785 650 36 SP1 High 1 335 1 270 1 165 1 062 950 810 645 450 240 Medium 1 185 1 100 990 845 685 520 335 Low 1 020 915 775 60...

Page 23: ...Pressurein WC High Medium Low SP4 0 200 400 600 800 1 000 1 200 1 400 1 600 1 800 2 000 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 Air ow CFM Sta cPressurein WC High Medium Low SP1 0 200 400 600 800 1 000 1...

Page 24: ...M Sta cPressurein WC High Medium Low SP2 0 200 400 600 800 1 000 1 200 1 400 1 600 1 800 2 000 0 0 0 1 0 2 0 3 0 4 0 5 0 6 0 7 0 8 Air ow CFM Sta c Pressurein WC High Medium Low SP3 0 200 400 600 800...

Page 25: ...conditioner Turn off the main power switch and reinstall the test cover NOTE If the unit malfunctions or does not operate according to your expectations please refer to the Troubleshooting section of...

Page 26: ...FF E0 Indoor unit EEPROM parameter error 2 times OFF E1 Indoor outdoor unit communication error 4 times OFF E3 The indoor fan speed is operating outside of the normal range 5 times OFF E4 Indoor room...

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