Danby DAS120GBHWDB Le manuel du propriétaire

DANBY PRODUCTS LIMITED, ONTARIO, CANADA N1H 6Z9

DANBY PRODUCTS INC., FINDLAY, OHIO, USA 45840

www.Danby.com

*

INSTALLATION MANUAL

MANUEL D'INSTALLATION

MANUAL DE INSTALACIÓN

2020.12.16

FOR ANY QUESTIONS OR CONCERNS REGARDING INSTALLATION OR SERVICING OF THIS UNIT,

PLEASE CONTACT THE DEALER OR BUILDER WHO SOLD THE UNIT.

_____________________________________________________________________

POUR TOUTE QUESTION OU PRÉOCCUPATION CONCERNANT L’INSTALLATION OU L’ENTRETIEN

DE CET APPAREIL, VEUILLEZ CONTACTER LE REVENDEUR OU LE CONSTRUCTEUR QUI A VENDU

L’APPAREIL.

__________________________________________________________________

PARA CUALQUIER PREGUNTA O INQUIETUD RELACIONADA CON LA INSTALACIÓN O SERVICIO DE

ESTA UNIDAD, PÓNGASE EN CONTACTO CON EL DISTRIBUIDOR O CONSTRUCTOR QUE VENDIÓ LA

UNIDAD.

SPLIT AIR CONDITIONER

Installation Guide ............................................... 1 - 26

CLIMATISEUR DIVISÉ

Guide d’installation........................................... 27 - 52

AIRE ACONDICIONADO DIVIDIDO

Guía de instalación............................................ 53 - 78

MODEL • MODÈLE • MODELO

DAS120GBHWDB

DAS170GBHWDB

DAS220GBHWDB

1

SAVE THESE INSTRUCTIONS!

Important Safety Information

READ AND FOLLOW ALL SAFETY INSTRUCTIONS

SAFETY PRECAUTIONS

Incorrect installation due to ignoring instructions

can cause serious damage or injury.

• When connecting refrigerant piping, do not let

substances or gases other than the speciﬁ ed

refrigerant enter the lines as this will lower the

unit’s capacity and can cause abnormally high

pressure in the refrigeration system, which can

lead to explosion or injury.

• Installation must be performed by a certiﬁ ed

HVAC technician. Defective installation can

cause water leakage, electrical shock or ﬁ re.

• In North America, installation must be

performed in accordance with the requirement

of NEC and CEC by authorized personnel only.

• Contact an HVAC technician or the sales agent

for information on repair or maintenance of this

appliance.

• Only use the included accessories, parts and

speciﬁ ed parts for installation. Using non-

standard parts can cause water leakage,

electrical shock, ﬁ re and can cause the unit to

fail.

• Install the appliance in a ﬁ rm location that can

support the unit’s weight. If the chosen location

cannot support the appliance’s weight, or if

the installation is not completed properly, the

appliance may fall and cause serious injury or

damage.

• For all electrical work, follow all local and

national wiring standards and regulations and

this manual. You must use an independent

circuit and single outlet to supply power. Do not

connect other appliances to the same outlet.

Insufﬁ cient electrical capacity or defects in

electrical work can cause electrical shock or ﬁ re.

• For all electrical work, use all speciﬁ ed cables.

Connect cables tightly and clamp them securely

to prevent external forces from damaging the

terminal. Improper electrical connections can

overheat and cause electrical shock or ﬁ re.

• All wiring must be correctly arranged to ensure

that the control board can close properly. If the

control board cover is not closed properly, it

can lead to corrosion and cause the connection

points on the terminal to overheat, catch ﬁ re or

cause electrical shock.

• In certain functional environments, such as

kitchens, server rooms, etc., the use of specially

designed air conditioning units is highly

recommended.

• This appliance is not intended for use by persons

(including children) whose physical, sensory or

metal capabilities may be different or reduced,

or who lack experience or knowledge, unless

such persons receive supervision or training to

operate the appliance by a person responsible

for their safety.

• Do not install the appliance in a location that

may be exposed to combustible gas leaks.

If combustible gas accumulates around the

appliance, it may cause ﬁ re.

• Do not operate this appliance in a wet room

such as a bathroom or laundry room. Too

much exposure to water can cause electrical

components to short circuit.

• The appliance must be properly grounded or

electric shock can occur.

• Install drainage piping according to the

instructions in this manual. Improper drainage

may cause water damage.

NOTE ABOUT FLUORINATED GASES

• This appliance contains ﬂ uorinated gasses. For

speciﬁ c information on the type and amount of

gas, refer to the relevant label on the appliance

itself.

• Installation, service, maintenance and repair of

this appliance must be performed by a certiﬁ ed

HVAC technician.

• Uninstallation and recycling must be performed

by a certiﬁ ed HVAC technician.

• If the appliance has a leak detection system

installed, it must be checked for leaks at least

every 12 months. When the appliance is

checked for leaks, proper record keeping of all

checks is strongly recommended.

2

INSTALLATION INSTRUCTIONS

ACCESSORIES

1. Mounting plate (x2)

2. Mounting plate ﬁ xing screw ST3.9 x 25 (x10)

3. Clip anchor (x10)

4. Remote control (x2)

5. Dry battery AAA.LR03 (x4)

6. Drain joint

7. Tie

8. Putty

9. Wear protective ring wall

10. Power line

11. Drain pipe

12. Connecting pipe

13. Remote control stand

INSTALLATION SUMMARY

Front Panel

Louver

Drainage Pipe

Signal Cable

Refrigerant Pipe

Remote Control

Outdoor Unit

Power Cable

Functional Filter

On Front of Main Filter

Wall Mounting Plate

3

INSTALLATION INSTRUCTIONS

INSTALLATION SUMMARY - INDOOR UNIT

4

INSTALLATION INSTRUCTIONS

INSTALLATION SUMMARY - INDOOR UNIT

L1 L2 S

5

INSTALLATION INSTRUCTIONS

INDOOR UNIT INSTALLATION

Before installing the indoor unit, refer to the label on the product box to ensure that the model number on

the indoor unit matches the model number on the outdoor unit. The indoor unit model number will end with

a “-I” and the outdoor unit model number will end with a “-O”, otherwise they should be identical.

Step 1: Select Installation Location

Proper installation locations meet the following standards:

• Good air circulation.

• Convenient drainage.

• Noise from the unit will not be disturbing.

• Firm and solid location that will not vibrate.

• Strong enough to support the weight of the unit.

• At least 1 m (3 feet) away from all other electrical devices, such as televisions, radios and computers,

which could impact the infrared remote signal.

Do not install the indoor unit in locations that have the following:

• Near any source of heat, steam or combustible gas.

• Near ﬂ ammable items such as curtains or clothing.

• Near any obstacle that might block air circulation.

• Near any doorway.

• In direct sunlight.

Refer to the below illustration to ensure proper distance from surrounding walls and ceiling:

6

INSTALLATION INSTRUCTIONS

Step 2: Attach Mounting Plate To Wall

The mounting plate is the device that attaches the indoor unit on the wall.

1. Remove the screw that attaches the mounting plate to the back of the indoor unit.

2. Place the mounting plate against the wall in the location where the indoor unit will be installed.

3. Drill holes for the mounting screws, ensuring that the screws enter wall studs that can support the weight

of the unit.

4. Secure the mounting plate to the wall with the provided screws. Ensure that the mounting plate is ﬂ at

against the wall.

Note: If the wall is made of brick, concrete or similar material, drill 5 mm (0.2 in) diameter holes in the

wall and insert the provided sleeve anchors. Secure the mounting plate to the wall by tightening the screws

into the clip anchors.

Mounting Plate Dimensions

Different models have different mounting plates. To ensure

that there is ample room to mount the indoor unit, check

the diagrams below which show the two different types of

mounting plates along with the following dimensions:

• Width of mounting plate.

• Height of mounting plate.

• Width of indoor unit relative to mounting plate.

• Height of indoor unit relative to mounting plate.

• Recommended position of wall hole, both to the left and

right of the indoor unit.

• Relative distance between screw holes.

7

INSTALLATION INSTRUCTIONS

Step 3: Drill Wall Hole For Connective Piping

A hole must be drilled through the wall to the outside to accommodate the refrigerant piping, the drainage

pipe and the signal cable that will connect the indoor and outdoor units.

1. Determine the location of the wall hole based on the position of the mounting plate. See Step 2 for

mounting plate dimensions.

2. The wall hole should have a 65 mm (2.5 in) diameter and it should be drilled on a downward angle to

facilitate drainage. The outdoor end of the hole should be lower than the indoor end of the hole by 5 -

7 mm (0.2 - 0.275 in).

3. Place the protective wall cuff in the hole. This will protect the edges of the hole and will help seal the

hole once the installation is complete.

Note: When drilling the wall hole, make sure to avoid wires, plumbing and other sensitive components that

could be within the wall.

8

INSTALLATION INSTRUCTIONS

Step 4: Prepare Refrigerant Piping

The refrigerant piping is inside an insulating sleeve attached to the back of the

unit. The piping must be prepared before passing it through the hole in the wall.

Refer to the Refrigerant Piping Connection section for detailed instructions on

pipe ﬂ aring and ﬂ are torque requirements, etc.

1. Based on the position of the wall hole relative to the mounting plate, choose

the side from which the piping will exit the unit.

2. If the wall hole is behind the unit, leave the knock out panel in place. If the

wall hole is to the side of the indoor unit, remove the plastic knock out panel

from the side of the unit. This will create a slot through which the piping can

exit the unit. Use needle nose pliers if the plastic panel is difﬁ cult to remove.

Knock out panel

3. Use scissors to cut down the length of the insulating sleeve to reveal approximately 15 cm (6 in) of the

refrigerant piping. This serves two purposes:

• To facilitate the Refrigerant Piping Connection process

• To facilitate gas leaks checks and allow a check for dents in the pipe

4. If existing connective piping is already embedded in the wall, proceed directly to Step 5: Connect

The Drain Hose. If there is no embedded piping, connect the indoor unit’s refrigerant piping to the

connective piping that will join the indoor and outdoor units.

5. Based on the position of the wall hole relative to the mounting plate, determine the necessary angle of

the piping. Grip the refrigerant piping at the base of the bend.

6. Slowly, with even pressure, bend the piping toward the wall hole. Do not dent or damage the pipe

during the process.

Note on Piping Angle

Refrigerant piping can exit the indoor unit from four different angles:

• Left-hand side

• Left rear

• Right-hand side

• Left rear

CAUTION

Be extremely careful not to dent or damage the piping

while bending them away from the unit. Any dents in

the piping will affect the unit’s performance.

9

INSTALLATION INSTRUCTIONS

Step 5: Connect the Drain Hose

By default, the drain hose is attached to the left-hand side of the unit, when facing the back of the unit. It

can also be attached to the right-hand side.

1. To ensure proper drainage, attach the drain hose on the same side of the unit as the refrigerant piping.

2. Attach the drain hose extension (purchased separately) to the end of the drain hose.

3. Wrap the connection point ﬁ rmly with Teﬂ on tape to ensure a good seal and prevent leaks.

4. For the portion of the drain hose that will remain indoors, wrap it with foam pipe insulation to prevent

condensation.

5. Remove the air ﬁ lter and pour a small amount of water into the drain pan to make sure that water ﬂ ows

from the unit smoothly.

Note on Drain Hose Placement

• Do not kink the drain hose.

• Do not create a water trap.

• Do not put the end of the drain hose in water or a container that will collect water.

Note: To prevent unwanted leaks, plug the unused drain hole with the provided rubber plug.

See below for examples of correct drain hose installation:

10

INSTALLATION INSTRUCTIONS

BEFORE PERFORMING ELECTRICAL WORK, READ THESE REGULATIONS

1. All wiring must comply with local and national electrical codes and must be installed by a licensed

electrician.

2. All electrical connections must be made according to the Electrical Connection Diagram located on the

panels of the indoor and outdoor units.

3. If there is a serious safety issue with the power supply, stop work immediately. Explain your reasoning

to the client and refuse to install the unit until the safety issue is resolved.

4. Power voltage should be within 90 - 100% of rated voltage. Insufﬁ cient power supply can cause

malfunction, electrical shock or ﬁ re.

5. If connecting power to ﬁ xed wiring, install a surge protector and main power switch with a capacity of

1.5 times the maximum current of the unit.

6. If connecting power to ﬁ xed wiring, a switch or circuit breaker that disconnects all poles and has a

contact separation of at least 3 mm (1.8 in) must be incorporated in the ﬁ xed wiring. The qualiﬁ ed

technician must use an approved circuit breaker or switch.

7. Only connect the unit to an individual branch circuit outlet. Do not connect another appliance to that

outlet.

8. Make sure to properly ground the appliance.

9. Every wire must be ﬁ rmly connected. Loose wiring can cause the terminal to overheat, resulting in

product malfunction and possible ﬁ re.

10. Do not let wires touch or rest against the refrigerant tubing, the compressor or any moving parts within

the unit.

WARNING

BEFORE PERFORMING ANY ELECTRICAL WIRING WORK,

TURN OFF THE MAIN POWER TO THE SYSTEM.

WARNING

All wiring must be performed in accordance with the wiring

diagram located on the inside of the indoor unit’s wire cover.

Do not mix up live and null wires. This is dangerous and can

cause the appliance to malfunction.

11

INSTALLATION INSTRUCTIONS

Step 6: Connect the Signal Cable

The signal cable enables communication between the indoor and outdoor units. You must ﬁ rst choose the

right cable size before preparing it for connection.

Cable types:

• Indoor Power Cable (if applicable): SOW

• Outdoor Power Cable: SOW

• Signal Cable: SOW

Minimum Cross Sectional Area of

Power and Signal Cables

Appliance Amps (A) AWG

10 18

13 16

18 14

25 12

30 10

CHOOSE THE RIGHT SIZE CABLE

The size of the power supply cable, signal cable, fuse and

switch needed is determined by the maximum current in the

unit. The maximum current is indicated on the rating plate

located on the side panel of the unit. Refer to this rating plate to

choose the right cable, fuse and switch.

Take Note of Fuse Speciﬁ cations

The air conditioner circuit board (PCB) is designed with a fuse to provide over current protection. The

speciﬁ cations of the fuse are printed on the circuit board, such as: T3.15A/250VAC, T5A/250VAC, etc.

1. Prepare the cable for connection:

a. Using wire strippers, strip the rubber jacket from both ends of the signal cable to reveal

about 40 mm (1.57 in) of the wires inside.

b. Strip the insulation from the ends of the wires.

c. Using wire crimper, crimp u-type lugs on the ends of the wires.

2. Open the front panel of the indoor unit.

3. Using a screwdriver, open the wire box cover on the right side of the unit. This will reveal the terminal

block.

4. Unscrew the cable clamp below the terminal block and place it to the side.

5. Facing the back of the unit, remove the plastic panel on the bottom left-hand side.

6. Feed the signal wire through this slot, from the back of the unit to the front.

7. Facing the front of the unit, match the wire colours with the labels on the terminal block, connect the

u-lug and ﬁ rmly screw each wire to its corresponding terminal.

8. After checking to make sure every connection is secure, use the cable clamp to fasten the signal cable

to the unit. Screw the cable clamp down tightly.

9. Replace the wire cover on the front of the unit and the plastic panel on the back.

The wiring diagram is

located on the inside of

the wire cover on the

indoor unit.

Note: Pay attention to the live

wire. While crimping wires,

make sure to distinguish the Live

(“L”) Wire and other wires.

12

INSTALLATION INSTRUCTIONS

Step 7: Wrap piping and cables

Before passing the piping, drain hose and the signal cable through the wall hole, bundle them together to

save space, protect them and insulate them.

1. Bundle the drain hose, refrigerant pipes and signal cable.

Note: Ensure that the drain hose is at the bottom of the bundle. Putting the drain hose at the top of the

bundle can cause the drain pan to overﬂ ow, which can lead to ﬁ re or water damage.

2. Using adhesive vinyl tape, attach the drain hose to the underside of the refrigerant pipes.

3. Using insulation tape, wrap the signal wire, refrigerant pipes and drain hose tightly together.

Note: While bundling these items together, do not intertwine or cross the signal cable with any other

wiring.

Note: When wrapping the bundle, keep the ends of piping unwrapped. Access is required to test for leaks

at the end of the installation process.

INSTALLATION INSTRUCTIONS

13

Step 8: Mount the Indoor Unit

If new connective piping was installed to the outdoor unit, complete the following:

1. If the refrigerant piping has already been passed through the wall, proceed to step 4.

2. Otherwise, double check that the ends of the refrigerant pipes are sealed to prevent dirt or foreign

materials from entering the pipes.

3. Slowly pass the wrapped bundle of refrigerant pipes, drain hose and signal wire through the hole in

the wall.

4. Hook the top of the indoor unit on the upper hook of the mounting plate.

5. Check that the unit is hooked ﬁ rmly on mounting by applying slight pressure to the left and right-hand

sides of the unit. The unit should not jiggle or shift.

6. Using even pressure, push down on the bottom half of the unit. Keep pushing down until the unit snaps

onto the hooks along the bottom of the mounting plate.

7. Check that the unit is ﬁ rmly mounted by applying slight pressure to the left and right-hand sides of the

unit.

If refrigerant piping is already embedded in the wall, complete the following:

1. Hook the top of the indoor unit on the upper hook of the mounting plate.

2. Use a bracket or wedge to prop up the unit, allowing enough room to connect the refrigerant piping,

signal cable and drain hose.

3. Connect the drain hose and refrigerant piping. Refer to the Refrigerant Piping Connection section for

more information.

4. Keep the pipe connection point exposed to perform the leak test. Refer to the Electrical Checks and Leak

Checks section for more information.

5. After the leak test, wrap the connection point with insulation tape.

6. Remove the bracket or wedge that is propping up the unit.

7. Using even pressure, push down on the bottom half of the unit. Keep pushing down until the unit snaps

onto the hooks along the bottom of the mounting plate.

Unit is Adjustable

The hooks on the mounting plate are smaller than the holes on the back of the unit. The unit can be

adjusted left or right by approximately 30 - 50 mm (1.25 - 1.95 in) depending on the model.

10 - 20 mm

( 0.4 - 0.8”)

10 - 20 mm

( 0.4 - 0.8”)

14

INSTALLATION INSTRUCTIONS

OUTDOOR UNIT INSTALLATION

Step 1: Select installation location

Before installing the outdoor unit, choose an appropriate location for the unit. Proper installation locations

meet the following requirements:

• Good air circulation and ventilation.

• Firm and solid; the location can support the unit and will not vibrate.

• Noise from the unit will not be disturbing.

• The unit will be protected from prolonged periods of direct sunlight, rain or snow.

• The location must meet the special requirements outlined below:

Do not install the unit in the following locations:

• Near obstacles that will block air inlets or outlets.

• Near a public street, crowded areas or where noise from the unit will disturb others.

• Near animals or plants that could be harmed by hot air discharge.

• Near any source of combustible gas.

• In a location that is exposed to large amounts of dust.

• In a location that is exposed to large amounts of salty air.

Special Considerations For Extreme Weather

If the unit is exposed to heavy wind, install the unit so that the air outlet fan is at a 90° angle to the

direction of the wind. If needed, build a barrier in front of the unit to protect it from the wind.

If the unit is exposed to heavy rain or snow, build a shelter above the unit to protect it. Be careful not to

obstruct air ﬂ ow around the unit.

If the unit is exposed to salty air, use an outdoor unit that is specially designed to resist corrosion.

15

INSTALLATION INSTRUCTIONS

Step 2: Install the drain joint

Before bolting the outdoor unit in place, install the drain joint at the bottom of the unit. There are two types

of drain joint depending on the type of unit.

1. Insert the drain joint into the hole in the base pan of the unit.

2. Rotate the drain joint 90° until it clicks in place facing the front of the unit.

3. Connect a drain hose extension (not included) to the drain joint to redirect water from the unit during

heating mode.

The base hole for the drain joint can be found on the bottom of the unit.

Note For Cold Climates

In cold climates, ensure that the drain hose is positioned as close to vertical as possible to encourage swift

water drainage. If water drains too slowly it can freeze inside the drain hose and ﬂ ood the unit.

16

INSTALLATION INSTRUCTIONS

Step 3: Anchor the outdoor unit

The outdoor unit can be anchored to the ground or to a wall-mounted bracket.

The following is a list of outdoor unit sizes and the distance between their mounting feet. Prepare the

installation base of the unit according to the dimensions and images below.

If the unit will be ground mounted, follow the below instructions:

1. Mark the positions for four expansion bolts based on dimensions in the unit mounting dimensions chart.

2. Pre-drill holes for expansion bolts.

3. Clean concrete dust away from holes.

4. Place a nut on the end of each expansion bolt.

5. Hammer expansion bolts into the pre-drilled holes.

6. Remove the nuts from the expansion bolts and place outdoor unit on the bolts.

7. Put washer on each expansion bolt and then replace the nuts.

8. Using a wrench, tighten each nut until snug.

WARNING

When drilling into concrete,

eye protection should be

worn at all times.

If the unit will be wall mounted, follow the below instructions:

1. Mark the positions of the bracket holes based on dimensions in the unit mounting dimensions chart.

2. Pre-drill holes for expansion bolts.

3. Clean concrete dust away from holes.

4. Place a washer and a nut on the end of each expansion bolt.

5. Thread the expansion bolts through the holes on the mounting brackets, put mounting brackets in posi-

tion and hammer the expansion bolts into the wall.

6. Check that the mounting brackets are level.

7. Carefully lift the unit and place its mounting feet on the brackets.

8. Bolt the unit ﬁ rmly to the brackets.

Note: To reduce vibrations and noise of a wall-mounted unit, install the unit with rubber gaskets.

Unit Mounting Dimensions Chart

Model Number Unit Dimensions (W x H x D)

Distance A

(mm / in)

Distance B

(mm / in)

DAS120GBHWDB 730 x 545 x 285 (28.7” x 21.5” x 11.2”) 540 (21.2”) 280 (11”)

DAS170GBHWDB 900 x 700 x 350 (35.4” x 27.6” x 13.8”) 630 (24.8”) 350 (13.8”)

DAS220GBHWDB 900 x 700 x 350 (35.4” x 27.6” x 13.8”) 630 (24.8”) 350 (13.8”)

17

INSTALLATION INSTRUCTIONS

Step 4: Connect the signal and power cables

The outdoor unit’s terminal block is protected by an electrical wiring cover on the side of the unit. A

comprehensive wiring diagram is printed on the inside of the wiring cover.

Cable Types:

• Indoor Power Cable (if applicable): SOW

• Outdoor Power Cable: SOW

• Signal Cable: SOW

1. Prepare the cable for connection:

a. Using wire strippers, strip the rubber jacket from both ends of the signal cable to reveal

about 40 mm (1.57 in) of the wires inside.

b. Strip the insulation from the ends of the wires.

c. Using wire crimper, crimp u-type lugs on the ends of the wires.

2. Unscrew the electrical wiring cover and remove it.

3. Unscrew the cable clamp below the terminal block and place it to the side.

4. Match the wire colours and labels with the labels on the terminal block and ﬁ rmly screw the u-lug of

each wire to its corresponding terminal.

5. After checking to make sure every connection is secure, loop the wires around to prevent rain water

from ﬂ owing into the terminal.

6. Using the cable clamp, fasten the cable to the unit. Screw the cable clamp down tightly.

7. Insulate unused wires with PVC electrical tape. Arrange them so that they do not touch any electrical or

metal parts.

8. Replace the wire cover on the side of the unit and screw it into place.

Minimum Cross Sectional Area of

Power and Signal Cables

Appliance Amps (A) AWG

10 18

13 16

18 14

25 12

30 10

WARNING

All wiring must be performed in accordance with the

wiring diagram located on the inside of the outdoor unit’s

wire cover. Do not mix up live and null wires. This is

dangerous and can cause the appliance to malfunction.

The wiring diagram is

located on the inside of

the wire cover on the

outdoor unit.

Note: Pay attention to the

live wire. While crimping

wires, make sure to

distinguish the Live (“L”)

Wire and other wires.

18

INSTALLATION INSTRUCTIONS

REFRIGERANT PIPING CONNECTION

The length of the refrigerant piping will affect the performance and energy efﬁ ciency of the unit. Nominal

efﬁ ciency is tested on units with a pipe length of 5 m (16.5 ft).

CONNECTION INSTRUCTIONS - REFRIGERANT PIPING

Step 1: Cut pipes

When preparing refrigerant pipes, take extra care to cut and ﬂ are them properly. This will ensure efﬁ cient

operation and minimize the need for future maintenance.

1. Measure the distance between the indoor and outdoor units.

2. Using a pipe cutter, cut the pipe a little longer than the measured distance.

3. Make sure that the pipe is cut at a perfect 90°.

Note: Do not damage, dent or

deform the pipe while cutting.

This will drastically reduce the

heating efﬁ ciency of the unit.

Step 2: Remove burrs

Burrs can affect the air-tight seal of the

refrigerant piping connection. Burrs must be

completely removed.

1. Hold the pipe at a downward angle to

prevent burrs from falling into the pipe.

2. Using a reamer or de-burring tool,

remove all burrs from the cut section of

the pipe.

Maximum Length and Drop Height of Refrigerant Piping per Unit Model

Model Number Capacity (BTU/h) Max. Length (m) Max. Drop Height (m)

DAS120GBHWDB < 15,000 25 (82 feet) 10 (33 feet)

DAS170GBHWDB ≥ 15,000 and < 24,000 30 (98.5 feet) 20 (66 feet)

DAS220GBHWDB

19

INSTALLATION INSTRUCTIONS

Step 3: Flare pipe ends

Proper ﬂ aring is essential to achieve an airtight seal.

1. After removing burrs from the cut pipe, seal the ends with PVC tape to prevent foreign materials from

entering the pipe.

2. Sheath the pipe with insulating material.

3. Place ﬂ are nuts on both ends of the pipe. Make sure they are facing in the right direction as they can-

not be removed or adjusted after ﬂ aring.

4. Remove the PVC tape from the ends of the pipe when ready to perform ﬂ aring work.

5. Clamp ﬂ are form on the end of the pipe. The end of the pipe must extend beyond the edge of the ﬂ are

form in accordance with the dimensions shown in the table and image below.

6. Place ﬂ aring tool onto the form.

7. Turn the handle of the ﬂ aring tool clockwise until the pipe is fully ﬂ ared.

8. Remove the ﬂ aring tool and ﬂ are form and then inspect the end of the pipe for cracks and even ﬂ aring.

PIPING EXTENSION BEYOND FLARE FORM

Outer Pipe Diameter (mm) Dimension A Minimum (mm) Dimension A Maximum (mm)

Ø 6.35 (Ø 0.25 in) 0.7 (0.0275 in) 1.3 (0.05 in)

Ø 9.52 (Ø 0.375 in) 1.0 (0.04 in) 1.6 (0.063 in)

Ø 12.7 (Ø 0.5 in) 1.0 (0.04 in) 1.8 (0.07 in)

Ø 16 (Ø 0.63 in) 2.0 (0.078 in) 2.2 (0.086 in)

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