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32801002001                                                                            Specifications subject to change without notice.                                                                                         

5

INSTALLATION
Step 1 - Check Equipment 

Unpack the unit and move to the final location. Remove the carton, 
taking care not to damage the unit. Inspect the equipment for damage 
prior to installation. File a claim with the shipping company if the 
shipment is damaged or incomplete. Locate the unit rating plate, 
which contains the proper installation information. Check the rating 
plate to be sure the unit matches the job specifications.
The indoor unit should be installed in a location that meets the 
following requirements:
• Enough room for installation and maintenance
• Enough room for the lineset and drainpipe
• A horizontal ceiling and a structure that can sustain the weight of

the indoor unit

• The air inlet and outlet are not impeded
• There is no direct radiation from heaters

Step 2 

-

 Mount Unit

The unit can stand or lie on the floor, or hang from a ceiling or a wall. 

Allow space for wiring, piping, and servicing the unit.

IMPORTANT: 

When the unit 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 alternative, the running of a separate, 
secondary condensate line. Consult the local codes for additional 
restrictions or precautions.

NOTE: Nuisance sweating may occur if the unit is installed in a 
high humidity environment with low airflow.

 

Fig. 5 — Indoor Unit Dimensions

Table 4 — Indoor Unit Dimensions  

Fig. 6 — Installation Clearances

DO NOT

 install the unit in the following locations:

• Areas with oil drilling or fracking
• Coastal areas with high salt content in the air
• Areas with caustic gases in the air, such as near hot springs
• Areas with power fluctuations, such as factories
• Enclosed spaces, such as cabinets
• Areas with strong electromagnetic waves
• Areas that store flammable materials or gas

• Rooms with high humidity, such as bathrooms or laundry 

rooms.

CAUTION

SIZES

A

B

C

D

24-48

48.2in

(1,224mm)

21in

(533mm)

19.6in

(498mm)

18.2in

(461mm)

10.3in

(261mm)

E

E

B

C

D

D

A

24in(60.9cm)

24in(60.9cm)

Allow a minimum of 24in (60.9 cm) clearance from access panels.

Vertical Upflow Installations

Horizontal  Installations

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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