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1.

This air conditioner uses refrigerant HFC (R410A).

2.

Since the max. working pressure is 550 

PSIG

 (3.8MPa) [R22:450 

PSIG

 (R22:3.1MPa)], some

  

         

of

 

the piping

installation

,

 and service tools 

may be

 

uncommon

.

3.

This air conditioner uses 

power

 

supply

 of

:

 

208/230V, 60Hz

, 1Ph

.

4.

The outdoor unit must be matched with 

an 

indoor unit equipped with 

TXV that can be

  

         

conducted

 

in heating mode.

5.

The outdoor unit must be matched with 

an 

indoor unit 

using

 refrigerant R410A.

6.

For 

the 

24K outdoor unit, it 

can

 be connected with 18K~24K indoor units.

       

 

 

For 

the 

36K outdoor unit, it can be connected with 30K~36K indoor units.

7.

A s

pecified filter drier is required on the liquid pipe when connecting the units.

8.

Be sure that 

the 

servicing equipment and replacement components are applicable for

     

       

  

R410A

 

refrigerant.

9.

Do not discharge R410A refrigerant into the air, and when recover

ing

 it, the cylinder service

 

         

pressure rating must be over 550

 PSIG

. R410A refrigerant systems should be charged with

    

         

liquid refrigerant

,

 and the service pressure rating of the hoses used must be over 750 

PSIG

.

10.

Leak detectors should be designed to 

be able to 

detect HFC refrigerant.

11.

R410A refrigerant is only compatible with POE oils, which absorb moisture rapidly

. D

o not

  

         

expose it to the air, 

as this could cause 

damage

 to 

certain plastics materials.

12.

Replace all filter driers after 

completion of 

maintenance.

·

Be sure to use a dedicated power circuit, and do not put other loads on the power supply.

·

Be sure to read these SAFETY PRECAUTIONS carefully before installation.

·

Be sure to comply with SAFETY PRECAUTIONS of installation manual, since it contains important

 

safety instructions. Definitions for identifying hazard levels are provide

d

 below with their respective

 

safety symbols.

        WARNING

Hazards or unsafe practices which COULD result in severe personal injury or death.

        CAUTION

: 

Hazards or unsafe practices which COULD result in minor personal injury or product 

or property damage.

·

Carefully store the indoor and outdoor unit manuals away for your future reference.

·

Installation should be performed only by qualified personnel.

Improper installation can cause water leakage, electrical shock, or fire.

·

Install the air conditioner on a solid base that can support all of the unit's weight.

An inadequate base or incomplete installation may cause injury if the unit falls off the base.

·

Use the specified type of wire for electrical connections safely between the indoor and outdoor units.

 

Firmly

clamp the interconnecting wires so that their terminals can receive no external stresses.

·

For wiring, use a cable long enough to cover the entire distance with no connection.

Do not connect multiple devices to the same AC power supply.

Otherwise, there is risk that due to bad contact or poor insulation, it can exceed the allowable current

 

and cause a fire or electric shock.

·

After installation is complete, perform a leak check to make sure that no refrigerant is leaking out.

If the refrigerant gas leaks internally, toward the heater, or externally towards any stove flames, it can

 

generate harmful substances.

·

Perform the installation securely referring to the installation manual.

Incomplete installation could cause personal injury due to fire, electric shock, the unit falling

,

 or

 

leakage of water.

·

In accordance with installation instructions for electrical-related work, use a dedicated

 

electrical line.

·

If the power supply circuit capacity/electrical work is not proper, it may cause a fire or electric shock.

·

Attach the electrical cover to the indoor unit and the service panel to the outdoor unit securely

.

·

If

 the electrical covers on the indoor unit or the service panel of the outdoor unit are not attached

 

securely, it could result in a fire

,

 or an electric shock due to dust, water, etc.

WARNING

Safety 

P

recautions

1

Summary of Contents for YH024GHFI18RT2

Page 1: ...efully before installing or operating your new air conditioning system Be sure to save this manual for future reference Installation Manual CENTRAL SPLIT AIR CONDITIONER HIGH EFFICENCY CONDENSING UNIT Models YH024GHFI18RT2 YH036GHFI18RT2 YH060GHFI18RT2 R 410A REFRIGERANT 208 230 V 1 Phase 60Hz 18 SEER ...

Page 2: ...This page intentionally left blank ...

Page 3: ...gerant Flow Diagram 3 Diagram of Refrigerant Cycle Wiring 3 Refrigerant Flow Diagram 3 Electrical Wiring Diagram 3 Installation Instructions 4 Transportation and Handling Before Installation 4 Installation Location Selection 4 Drainage Elbow and Drain Hose Installation 5 Outdoor Unit Installation 5 Refrigerant Piping 6 Wiring 9 Test Run 11 Mode Outdoor Operation Temperature Range Maximum Minimum C...

Page 4: ... COULD result in severe personal injury or death CAUTION Hazards or unsafe practices which COULD result in minor personal injury or product or property damage Carefully store the indoor and outdoor unit manuals away for your future reference Installation should be performed only by qualified personnel Improper installation can cause water leakage electrical shock or fire Install the air conditione...

Page 5: ...arried out under the supervision of the person competent and capable in the handling of flammable refrigerants Means for disconnection such as circuit breaker which can provide full disconnection in all poles must be incorporated in the fixed wiring in accordance with the wiring rules It is necessary to allow the disconnection of the appliance from the supply after installation Ensure the disconne...

Page 6: ...hanger EEV Service Valve Power Supply Power Supply Thermostat Thermostat Indoor Unit Indoor Unit Outdoor Unit Outdoor Unit Power Terminal Panel Power Terminal Panel Refrigerant Flow Diagram L2 L2 L1 L1 W W1 W2 B B C C R R Y Y G G G G R R C C C C B B Y Y W W W1 W1 W2 W2 Electrical Wiring Diagram Wiring single stage auxiliary heating thermostat Wiring twin stage auxiliary heating thermostat 3 Note a...

Page 7: ...0 ft away from the antenna of a TV set or radio An amplifier may be required for the affected device Install the unit horizontallyandlevel Install it in an area not affected by snowfall or blowing snow If areas with heavy snow cannot be avoided install a canopy a pedestal and or some baffle boards Avoid the following places for installation where air conditioner related issues are liable to occur ...

Page 8: ...ter to public places to avoid skidding 6 A strong base made of concrete etc should be made beforehand The appliance should be placed no less than 10 cm high to avoid getting wet or corroded Otherwise it can cause damage to the appliance or reduce its lifetime Fig 3 Drainage Elbow and Drain Hose Installation Outdoor Unit Installation Install Drainage Elbow and Drain Hose The condensate water may dr...

Page 9: ... 1 32 0 8 1 32 1 0 1 32 0 8 1 32 0 8 1 32 1 0 1 32 1 0 1 Prepare locally supplied copper pipes 2 Use clean copper pipes Ensure that there is no dust or moisture inside of the pipes Blow the inside of the pipes with nitrogen or dry air to remove any dust or foreign materials before connecting pipes 3 Piping thickness and material of the pipe are shown as below Refrigerant Additional Charge The unit...

Page 10: ...ing brazing c After brazing cool joint using the wet rag Installation Instructions Welding Torch Baffle Wet Cloth Piping Insulation Procedure Insulation field supplied 3 After finishing connection of the refrigerant pipes keep it warm using the insulation material as depicted in the figure on the right For the outdoor unit side insulate every piping end including valves Cover piping joints with pi...

Page 11: ...halogen leak detector to check the flare nut and brazing points of leak Use foam that does not generate ammonia NH3 in the reaction Indoor Unit Outdoor Unit Manifold Valve Pressure Gauge Vacuum Pump Fig 9 2 Turn the cylinder upside down when filling Stand the cylinder upright when filling There is a siphon pipe inside so the cylinder need not be upside down to fill with liquid Filling Using a Cyli...

Page 12: ...n power switch to the indoor unit and the outdoor unit and wait for at least 3 minutes before electrical wiring work or a periodical check is performed Check to ensure that the indoor fan and the outdoor fan have stopped before electrical wiring work or a periodical check is performed Protect the wires electrical parts etc from rats or other small animals If not protected rats may gnaw at unprotec...

Page 13: ...Transmitting Cable to wired controller 1 Remove the screws maintenance plate and the valve cover 2 Pass transmitting cable and power supply through the two holes on the right side plate 3 Fasten the conduit connection to the right side plate using the lock nut 4 Connect the transmitting cable and power supply to the terminal 5 Secure the transmitting cable and power supply together with the clamp ...

Page 14: ...ppliance is generally finished after the above operations are done If you still have any trouble please contact the local technical service center of our company for further information CAUTION Test Run Electrical Data Max Running Current A REFER TO NAMEPLATE Note 1 Follow local codes and regulations when selecting field wires All of the above are the minimum wire size 2 When transmitting cable le...

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Page 16: ...r Davis HVAC International Inc Parker Davis HVAC International Inc 3250 NW 107 Avenue Doral FL 33172 USA Tel 305 513 4488 Fax 305 513 4499 E mail info pd hvac com Website www pd hvac com Pioneer product line parts and supplies are available online for convenient ordering at www highseer com www pioneerminisplit com Scan the below code to visit our support page where you can find more installation ...

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