Central Pneumatic 40211 Istruzioni per il montaggio

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Owner’s Manual & Safety Instructions

Save This Manual Keep this manual for the safety warnings and precautions, assembly,

operating, inspection, maintenance and cleaning procedures. Write the product’s serial number in the

back of the manual near the assembly diagram (or month and year of purchase if product has no number).

Keep this manual and the receipt in a safe and dry place for future reference. 22l

When unpacking, make sure that the product is intact

and undamaged. If any parts are missing or broken,

please call 1-888-866-5797 as soon as possible.

No portion of this manual or any artwork contained herein may be reproduced in

any shape or form without the express written consent of Harbor Freight Tools.

Diagrams within this manual may not be drawn proportionally. Due to continuing

improvements, actual product may differ slightly from the product described herein.

Tools required for assembly and service may not be included.

Read this material before using this product.

Failure to do so can result in serious injury.

SAVE THIS MANUAL.

Page 2 For technical questions, please call 1-888-866-5797. Item 40211

SAFETY OPERATION MAINTENANCEINSTALLATION

Table of Contents

Safety ......................................................... 2

Installation .................................................. 6

Specifications ............................................. 6

Operation.................................................... 9

Maintenance.............................................. 10

Parts List and Diagram.............................. 11

Warranty .................................................... 12

WARNING SYMBOLS AND DEFINITIONS

This is the safety alert symbol. It is used to alert you to potential

personal injury hazards. Obey all safety messages that

follow this symbol to avoid possible injury or death.

Indicates a hazardous situation which, if not avoided,

will result in death or serious injury.

Indicates a hazardous situation which, if not avoided,

could result in death or serious injury.

Indicates a hazardous situation which, if not avoided,

could result in minor or moderate injury.

Addresses practices not related to personal injury.

Page 3For technical questions, please call 1-888-866-5797.Item 40211

SAFETYOPERATIONMAINTENANCE INSTALLATION

IMPORTANT SAFETY INFORMATION

General Safety Warnings

WARNING Read all safety warnings and instructions.

Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.

Save all warnings and instructions for future reference.

The warnings, precautions, and instructions discussed in this instruction manual cannot cover all possible

conditions and situations that may occur. It must be understood by the operator that common sense

and caution are factors which cannot be built into this product, but must be supplied by the operator.

1. Work area safety

a. Keep work area clean and well lit.

Cluttered or dark areas invite accidents.

b. Do not operate the Air Dryer in explosive

atmospheres, such as in the presence

of flammable liquids, gases or dust.

Air Dryer motors produce sparks which

may ignite the dust or fumes.

c. Keep children and bystanders away

from an operating Air Dryer.

2. Electrical safety

a. Air Dryer plugs must match the outlet. Never

modify the plug in any way. Do not use

any adapter plugs with grounded Air

Dryers. Standard plugs and matching

outlets will reduce risk of electric shock.

b. Do not expose Air Dryer to rain or wet

conditions. Water entering a Air Dryer

will increase the risk of electric shock.

c. Do not abuse the cord. Never use the cord

for unplugging the Air Dryer. Keep cord

away from heat, oil, sharp edges or

moving parts. Damaged or entangled

cords increase the risk of electric shock.

d. Guard against electric shock. Prevent body

contact with grounded surfaces such as pipes,

radiators, ranges, and refrigerator enclosures.

3. Personal safety

a. Stay alert, watch what you are doing and

use common sense when operating this

Air Dryer. Do not use this Air Dryer while

you are tired or under the influence of

drugs, alcohol or medication. A moment

of inattention while operating a Air Dryer

may result in serious personal injury.

b. Use personal protective equipment.

Always wear ANSI-approved eye

protection during setup and use.

c. Prevent unintentional starting. Ensure the

switch is in the off-position before connecting

to power source or moving the Air Dryer.

4. Air Dryer use and care

a. Do not use the Air Dryer if the switch

does not turn it on and off. Any Air Dryer

that cannot be controlled with the switch

is dangerous and must be repaired.

b. Disconnect the plug from the power source

before making any adjustments, changing

accessories, or storing the Air Dryer. Such

preventive safety measures reduce the risk

of starting the Air Dryer accidentally.

c. Store an idle Air Dryer out of the reach

of children and do not allow persons

unfamiliar with the Air Dryer or these

instructions to operate it. A Air Dryer is

dangerous in the hands of untrained users.

d. Maintain the Air Dryer. Keep the Air Dryer

clean for better and safer performance.

Follow instructions for lubricating and

changing accessories. Keep dry, clean

and free from oil and grease. Check

for misalignment or binding of moving

parts, breakage of parts and any other

condition that may affect the Air Dryer’s

operation. If damaged, have the Air Dryer

repaired before use. Many accidents are

caused by a poorly maintained Air Dryer.

e. Use the Air Dryer in accordance with these

instructions, taking into account the working

conditions and the work to be performed. Use

of the Air Dryer for operations different from those

intended could result in a hazardous situation.

5. Service

a. Have your Air Dryer serviced by a qualified

repair person using only identical

replacement parts. This will ensure that

the safety of the Air Dryer is maintained.

b. Replacement parts and accessories. When

servicing, use only identical replacement

parts. Use of any other parts will void the

warranty. Only use accessories intended

for use with this tool. Approved accessories

are available from Harbor Freight Tools.

Page 4 For technical questions, please call 1-888-866-5797. Item 40211

SAFETY OPERATION MAINTENANCEINSTALLATION

Air Dryer Safety Warnings

1. Risk of fire or explosion - do not spray

flammable liquid in a confined area or towards a

hot surface. Spray area must be well-ventilated.

Do not smoke while spraying or spray where

spark or flame is present. Arcing parts - keep

Air Dryer at least 20 feet away from explosive

vapors, such as when spraying with a spray gun.

2. Do not use to supply breathing air.

3. Do not leave Air Dryer unattended for

an extended period while plugged in.

Unplug Air Dryer after working.

4. Keep Air Dryer well-ventilated.

Do not cover Air Dryer during use.

5. Do not adjust internal components other

than instructed in this manual.

6. Air Dryer head gets hot during operation. Do

not touch it or allow children nearby during

or immediately following operation.

7. The use of accessories or attachments not

recommended by the manufacturer may

result in a risk of injury to persons.

8. All air line components, including hoses, pipe,

connectors, filters, etc., must be rated for a minimum

working pressure of 150 PSI, or 150% of the

maximum system pressure, whichever is greater.

9. USE OF AN EXTENSION CORD IS NOT

RECOMMENDED. If you choose to use an

extension cord, use the following guidelines:

TABLE A: RECOMMENDED MINIMUM WIRE

GAUGE FOR EXTENSION CORDS

(120 VOLT)

NAMEPLATE

AMPERES

(at full load)

EXTENSION CORD

LENGTH

25′ 50′ 100′ 150′

0 – 6 18 16 16 14

6.1 – 10 18 16 Do not use.

10.1 – 12 16 16 Do not use.

12.1 – 16 14 12 Do not use.

a. Make sure your extension cord

is in good condition.

b. Be sure to use an extension cord which

is heavy enough to carry the current your

product will draw. An undersized cord will

cause a drop in line voltage resulting in loss

of power and overheating. Table A shows the

correct size to use depending on cord length

and nameplate ampere rating. If in doubt,

use the next heavier gauge. The smaller

the gauge number, the heavier the cord.

Note: Performance of the Air Dryer (if powered

by line voltage) may vary depending on

variations in local line voltage. Extension cord

usage may also affect tool performance.

10. Industrial applications must follow OSHA guidelines.

11. Maintain labels and nameplates on the

Air Dryer. These carry important safety

information. If unreadable or missing, contact

Harbor Freight Tools for a replacement.

12. This product is not a toy.

Keep it out of reach of children.

13. People with pacemakers should consult their

physician(s) before use. Electromagnetic fields in

close proximity to heart pacemaker could cause

pacemaker interference or pacemaker failure.

SAVE THESE INSTRUCTIONS.

Page 5For technical questions, please call 1-888-866-5797.Item 40211

SAFETYOPERATIONMAINTENANCE INSTALLATION

Grounding

TO PREVENT ELECTRIC SHOCK AND DEATH

FROM INCORRECT GROUNDING WIRE CONNECTION:

Check with a qualified electrician if you are in doubt as to whether the outlet is

properly grounded. Do not modify the power cord plug provided with the Air Dryer.

Never remove the grounding prong from the plug. Do not use the Air Dryer if the power cord or plug

is damaged. If damaged, have it repaired by a service facility before use. If the plug will not fit the outlet,

have a proper outlet installed by a qualified electrician.

110-120 VAC Grounded Air Dryers: Air Dryers with Three Prong Plugs

1. In the event of a malfunction or breakdown,

grounding provides a path of least resistance for

electric current to reduce the risk of electric shock.

This Air Dryer is equipped with an electric cord

having an equipment-grounding conductor

and a grounding plug. The plug must be

plugged into a matching outlet that is properly

installed and grounded in accordance

with all local codes and ordinances.

2. Do not modify the plug provided –

if it will not fit the outlet, have the proper

outlet installed by a qualified electrician.

3. Improper connection of the equipment-grounding

conductor can result in a risk of electric shock.

The conductor with insulation having an outer

surface that is green with or without yellow

stripes is the equipment-grounding conductor.

If repair or replacement of the electric cord or

plug is necessary, do not connect the equipment-

grounding conductor to a live terminal.

4. Check with a qualified electrician or service

personnel if the grounding instructions are

not completely understood, or if in doubt as to

whether the Air Dryer is properly grounded.

5. Use only 3-wire extension cords that

have 3-prong grounding plugs and 3-pole

receptacles that accept the Air Dryer’s plug.

6. Repair or replace damaged or

worn cord immediately.

Grounding

125 VAC 3-Prong Plug and Outlet

(for up to 125 VAC and up to 15 A)

7. This Air Dryer is intended for use on a circuit

that has an outlet that looks like the one

illustrated above in 125 VAC 3-Prong Plug

and Outlet. The Air Dryer has a grounding

plug that looks like the plug illustrated above

in 125 VAC 3-Prong Plug and Outlet.

8. The outlet must be properly installed and grounded

in accordance with all codes and ordinances.

9. Do not use an adapter to connect this

Air Dryer to a different outlet.

Symbology

PSI Pounds per square inch of pressure

CFM Cubic Feet per Minute flow

SCFM Cubic Feet per Minute flow

at standard conditions

NPT National pipe thread, tapered

NPS National pipe thread, straight

VVolts

~Alternating Current

AAmperes

Page 6 For technical questions, please call 1-888-866-5797. Item 40211

SAFETY OPERATION MAINTENANCEINSTALLATION

Specifications

Electrical Rating 110 - 120VAC / 60Hz /

Horsepower 1/4 HP

Air Inlet / Outlet Size 1/2" Steel Pipe -14 NPT

Recommended Operating Pressure 100 PSI

Max. Operating Pressure 140 PSI

Flow Capacity 21.6 CFM

R-134A Refrigerant Pressure / Temp Range 32 - 39 PSI (2 - 8° C)

Note: This Compressed Air Dryer uses R-134A Refrigerant.

Note: Not for medical use. Do not use for hyperbaric chambers.

Installation

Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this

manual including all text under subheadings therein before set up or use of this product.

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:

Turn the Power Switch “OFF” and unplug the Air Dryer from its electrical

outlet before assembling or making any adjustments to the dryer.

Note: For additional information regarding the parts listed in the following pages,

refer to the Assembly Diagram near the end of this manual.

Functions

Power

Switch

Gauge

Power

indicator

Error

Indicator

Air Inlet Air Outlet

Drain

Page 7For technical questions, please call 1-888-866-5797.Item 40211

SAFETYOPERATIONMAINTENANCE INSTALLATION

Installation

For best performance, an oiler, regulator, and inline filter should be incorporated as shown in the diagram

below. Hoses, couplers, oilers, regulators, and filters are all available at Harbor Freight Tools.

TOOL AIR

DRYER COMPRESSOR

Hose

Line

Air

Hose

Oiler Filter

Regulator

Air

Valve

Note: It will be necessary to install valves and couplers (not included) from the compressor to the

Air Dryer (1/2" steel pipe-14 NPT) and from the Air Dryer (1/2" steel pipe-14 NPT) to the tool. Use

pipe thread seal tape or pipe dope for all connections. If you are not using an automatic oiler system,

before operation, add a few drops of pneumatic tool oil to the airline connection. Add a few drops

more after each four hours of continual use. Check the air connections for leaks before use.

Note: It is recommended that a bypass valve (not included) be added between the Air Inlet and Air Outlet

of the Air Dryer for applications when the Air Dryer is not needed as shown in the diagram below. The

shutoff valves (not included) must be plumbed below the horizontal piping containing the bypass valve.

The bypass and shutoff valves must be installed by a plumber or an authorized service technician.

Air Inlet Air Outlet

Shutoff

Valve

Shutoff

Valve

Bypass

Valve

Compressor Air Dryer

1. Install the Air Dryer at least 2 feet from the wall on all

four sides. This will give the unit proper ventilation

and allow space for maintenance and repair.

2. Make sure the floor is level.

3. Do not expose the unit to rain or any moisture.

4. Install the unit out of direct sunlight and

away from any heat sources. Otherwise, the

cooling function of the unit will continually

run, eventually overheating the Air Dryer.

5. Position a small bucket to capture foul water

from the drain hose at the bottom of the unit.

Condensation water can be piped to a floor drain, if

available; be sure to follow local plumbing codes.

Drain

Front

6. Complete all plumbing as required.

Note: Electrical wiring must be done by a

professionally certified electrician.

7. Remove the Right Side Panel.

Right

Panel

Front

Page 8 For technical questions, please call 1-888-866-5797. Item 40211

SAFETY OPERATION MAINTENANCEINSTALLATION

8. Route the three conductor electrical cord

(not included) through a UL approved

cable clamp (not included) and through the

Access Hole on the rear of the unit.

Rear

Access

Hole

Note: The three conductor electrical cord (not included)

must be rated for a minimum of 10-1/2 load rated amps,

and the plug must be three pronged (recommended

12 gauge, three conductor electrical cord).

Note: The schematic diagram below is provided for additional information and clarification.

Hot

Neutral

Ground

Green

Blue

Red

Brown

FAN

Red

Green

Blue

Yellow

Error

Indicator

Power

Indicator Refrigeration

Pressure Switch

Pressure

Switch

Power

Switch

Capacitor

Freezer

Overload

Protector

1 3

9. Locate the Terminal Strip inside the unit. Note

the top three wires on the Terminal Strip are

pre-wired from the factory. Connect the three

conductors of the electrical cord (not included)

to the Terminal Strip as illustrated below.

Green

(Hot)

Blue

(Neutral)

Green/Yellow

(Ground)

Black

(Hot)

White

(Neutral)

Green

(Ground)

Electrical

Cord

Pre-wired at

Factory

10. Make to route the electrical cord (not included)

in the interior of the unit to prevent interference

with the fan, hot components, etc.

11. Secure the UL approved cable clamp (not included)

to the Access Hole on the rear of the unit.

12. Secure the electrical cord (not included) within

the UL approved cable clamp (not included) to

prevent strain on the electrical connections.

13. Replace the Right Side Panel.

Page 9For technical questions, please call 1-888-866-5797.Item 40211

SAFETYOPERATIONMAINTENANCE INSTALLATION

Operating Instructions

Read the ENTIRE IMPORTANT SAFETY INFORMATION section at the beginning of this

manual including all text under subheadings therein before set up or use of this product.

Air Dryer Set Up

1. Route the power cord from the Air Dryer to

the grounded wall outlet, along a safe path

without creating a tripping hazard or exposing

the power cord to possible damage.

2. Using the Air Dryer without the bypass valve:

a. Open both shutoff valves.

b. Close the bypass valve.

c. Turn on the air compressor and Air Dryer.

3. Using the bypass valve without the Air Dryer:

a. Turn off the Air dryer and air compressor.

b. Close both shutoff valves.

c. Open the bypass valve.

d. Turn on the air compressor.

General Operation

Note: Determine whether the Air Dryer is to be used

or to bypass the Air Dryer. Follow the instructions

under ″Air Dryer Set Up″ on page 9.

Follow the instructions below

when using the Air Dryer:

Temperature

Gauge

Error

Indicator

Power

Indicator

Power

Switch

1. Power up the air compressor.

2. Press the Power Switch on the front control

panel to power up the Air Dryer.

Note: If the Error Indicator is on, turn off the Air

Dryer and let the unit cool. After the unit has cooled,

turn on the Air Dryer. If the Error Indicator is still lit,

take the unit to an authorized service technician.

During normal operation, the Gauge should always

be in a range between 32 - 39 PSI (2 - 8° C).

3. After the Air Dryer has warmed up, if you do not

hear the fan running, there is likely not enough

air pressure to activate the pressure switch.

a. Turn off the Air Dryer and the air compressor.

b. Close the shutoff valve for the Air Inlet.

c. Turn the Air Dryer back on and allow it to

build up pressure for a few minutes.

d. Open the shutoff valve for the Air Inlet.

e. Turn on the air compressor and

let the air in slowly at first.

4. During operation, dry air will pass from the

Air Dryer to the tool or application.

5. When finished, stop the air compressor

first. Continue to run the Air Dryer until all

compressed air runs through the system.

6. Turn off the Air Dryer.

Note: If the Air Dryer stops and the Error Indicator is

lit, the unit is running at too high of a temperature or

pressure. Let the unit cool. Unplug the Air Dryer. Open

the Right Side Panel and push the reset button on the

Pressure Switch (See the ″Parts List″ on page 11,

and the ″Assembly Diagram″ on page 12). Replace

the Right Side Panel. Plug the unit in and restart. If

the Error Indicator stays lit, or comes on continually,

take the unit to an authorized service technician.

Right

Panel

Front

Page 10 For technical questions, please call 1-888-866-5797. Item 40211

SAFETY OPERATION MAINTENANCEINSTALLATION

Maintenance and Servicing

Procedures not specifically explained in this manual must

be performed only by a qualified technician.

TO PREVENT SERIOUS INJURY FROM ACCIDENTAL OPERATION:

Turn the Power Switch “OFF” and unplug the Air Dryer from its electrical outlet

before performing any inspection, maintenance, or cleaning procedures.

TO PREVENT SERIOUS INJURY FROM AIR DRYER FAILURE:

Do not use damaged equipment. If abnormal noise or vibration occurs,

have the problem corrected before further use.

Cleaning, Maintenance, and Lubrication

Note: This Air Dryer uses Refrigerant 134A. The

refrigerant system does not need servicing unless

the unit begins to leak. If the unit leaks refrigerant,

take it to an authorized service technician.

1. BEFORE EACH USE, inspect the general

condition of the air dryer. Check for:

• loose hardware,

• misalignment or binding of moving parts,

• cracked or broken parts,

• damaged electrical wiring, and

• any other condition that may

affect its safe operation.

2. AFTER USE, wipe external surfaces of

the Air Dryer with a clean cloth.

3. PERIODICALLY, Use a dust collector and an air

gun to clean dirt and debris off of the Condenser.

Be careful not to get too close to the unit as high

pressure will damage the unit. If grease or oil

are built up and wont blow off, remove the Left

Side Panel and wash off the Condenser with

a mild detergent, then replace the Panel.

4. Never attempt to adjust the temperature;

this adjustment should only be done by

an authorized service technician.

5. WARNING! If the supply cord of this

Air Dryer is damaged, it must be replaced

only by a qualified service technician.

6. WARNING! Repairing this unit (other than

resetting the pressure switch) should only be

performed by an authorized service technician.

7. Authorized Service Technician ONLY;

Washing the Water Separator:

a. Remove the Water Separator from the

Connector; do not lose the internal Filter.

b. Remove the Lid from the Housing

and pour out any water.

c. Disassemble the Water Separator and

its internal components and clean each

component inside and outside.

d. Reassemble the Water Separator.

Connector

Filter

Lid

Housing

O-Ring

Drainage

Piston

Pressure

Plug Control

Rod

Float

Spring

Inner

Hole

Drain Pipe

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