Carrier 38VYX050, 38VYX080 User Manual

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Carrier 38VYX050, 38VYX080 User Manual

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S O 900

 

 

INSTALLATION MANUAL

38VYX050/38VYX080

 

Heat pump split system outdoor units

 

For operation and maintenance instructions of this unit as well as installation

 

instructions of the indoor unit, refer to the relevant manuals.

 

Contents

 

 

Page

Precautions for safety ....................................................................................................................

2

Accessory and refrigerant .............................................................................................................

3

Selection of installation ..................................................................................................................

4

Refrigerant piping . ........................................................................................................................

5

Evacuating. ....................................................................................................................................

9/10

Electrical connections....................................................................................................................

10

Final installation checks ................................................................................................................

11/12

ATTENTION INSTALLERS AND SERVICE TECHNICIANS!

AIR CONDITIONER WITH R-410A – QUICK REFERENCE GUIDE

R-410A refrigerant operates at 50%-70% higher pressures than R-22. Be sure that servicing equipment and replacement components are designed to operate with R-410A.

R-410A refrigerant cylinders are pink.

R-410A refrigerant cylinders have a dip tube which allows liquid to flow out with the cylinder in a vertical position with the valve at the top.

R-410A systems should be charged with liquid refrigerant. Use a commercial type metering device in the manifold hose in order to vaporize the liquid refrigerant before it enters in the unit.

A vacuum pump is not enough to remove moisture from oil.

Oils absorb moisture rapidly. Do not expose oil to atmosphere.

Never open system to atmosphere while it is under vacuum.

When the system must be opened for service, break vacuum with dry nitrogen.

Do not vent R-410A into the atmosphere.

Use only Carrier matching indoor units (Table I).

Table I

Heat

Cassette

Hi-Wall

Satellite

Console

Power

 

pump

 

“40KQV”

“42PQV”

“40SQV”

“42VQV”

supply

 

models

 

 

 

 

 

 

 

 

 

 

 

 

 

 

38VYX 050

050

050

050

050

 

 

38VYX 080

080

080

080

080

220 240V ~ 50Hz

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

ENGLISH

GB - 1

38VYX050/38VYX080

General information

Precautions for safety

The unit must be installed according to the national plantengineering standards.

Read this “PRECAUTIONS FOR SAFETY” carefully before Installation.

The precautions described below include the important items regarding safety. Observe them without fail.

After the installation work, perform a trial operation to check for any problem.

Follow the Owner’s Manual to explain how to use and maintain the unit to the customer.

Turn off the main power supply switch (or breaker) before the unit maintenance.

Ask the customer to keep the Installation Manual together with the Owner’s Manual.

CAUTION:

This air conditioner adopts the new HFC refrigerant (R410A) which does not destroy ozone layer.

The characteristics of R410A refrigerant are ; easy to absorb water, oxidizing membrane or oil, and its pressure is approx. 1.6 times higher than that of refrigerant R22.

Accompanied with the new refrigerant, refrigerating oil has also been changed.

Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating oil does not enter the refrigerating cycle.

To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging port of the main unit and installation tools are charged from those for the conventional refrigerant. Accordingly the exclusive tools are required for the new refrigerant (R410A).

Connect indoor and outdoor units with field-supplied copper pipes by means of flare connections. Use insulated seamless refrigeration grade pipe only, (Cu DHP type according to ISO1337), degreased and deoxidized, suitable for operating pressures of at least 4200 kPa and for burst pressure of at least 20700 kPa. Under no circumstances must sanitary type copper pipe be used.

Moreover, do not use the existing piping because there are problems with pressure-resistance force and impurity in it.

Check that the impedance of the mains power supply is in conformance with the unit power input indicated in the electric data (EN 61000-3-11).

This unit complies with low-voltage (EEC/73/23) and electromagnetic compatibility (EEC/89/336) directives.

This appliance must be connected to the main power supply by means of a switch with a contact separation of at least 3 mm.

The installation fuse (25A D type ) must be used for the power supply line of this conditioner.

WARNING:

Ask an authorized dealer or qualified installation professional to install/maintain the air conditioner. Inappropriate installation may result in water leakage, electric shock or fire.

Turn off the main power supply switch or breaker before attempting any electrical work. Make sure all power switches are off. Failure to do so may cause electric shock.

Connect the connecting cable correctly. If the connecting cable is connected in a wrong way, electric parts may be damaged.

When moving the air conditioner for the installation into another place, be very careful not to enter any gaseous matter other than the specified refrigerant into the refrigeration cycle.

If air or any other gas is mixed in the refrigerant, the gas pressure in the refrigeration cycle becomes abnormally high and it may cause pipe burst and injuries on persons.

Do not modify this unit by removing any of the safety guards or by by-passing any of the safety interlock switches.

Exposure of unit to water or other moisture before installation may cause a short-circuit of electrical parts. Do not store it in a wet basement or expose to rain or water.

After unpacking the unit, examine it carefully for possible damage.

Do not install in a place that might increase the vibration of the unit.

To avoid personal injury (with sharp edges), be careful when handling parts.

Perform installation work properly according to the Installation Manual.

Inappropriate installation may result in water leakage, electric shock or fire.

When the air conditioner is installed in a small room, provide appropriate measures to ensure that the concentration of refrigerant leakage occurred in the room does not exceed the critical level.

Install the air conditioner securely in a location where the base can sustain the weight adequately.

Perform the specified installation work to guard against an earthquake.

If the air conditioner is not installed correctly, accidents may occur due to the falling unit.

If refrigerant gas has leaked during the installation work, ventilate the room immediately.

If the leaked refrigerant gas comes in contact with fire, noxious gas may generate.

After the installation work, confirm that refrigerant gas does not leak. If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas might generate.

Electrical work must be performed by a qualified electrician in accordance with the Installation Manual.

Make sure the air conditioner uses an exclusive power supply. An insufficient power supply capacity or inappropriate installation may cause fire.

Use the specified cables for wiring and connect them firmly to the terminals.

To prevent external forces applied to the terminals from affecting the terminals.

Be sure to provide grounding. Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone cables.

Conform to the regulations of the local electric company when wiring the power supply.

Inappropriate grounding may cause electric shock.

Do not install the air conditioner in a location subject to a risk of exposure to a combustible gas.

If a combustible gas leaks, and stays around the unit, a fire may occur.

Required tools for installation work

-Philips screw driver

-Cutter drill (65 mm)

-Spanner

-Pipe cutter

-Cutter

-Reamer

-Gas leak detector

-Meter

-Thermometer

-Volt-ohm-milliammeter

-Electro circuit tester

-Hexagonal wrench

-Flare tool

-Pipe bender

-Water level

-Metal saw

R410A (Special requirement)

-Manometer for pressure measuring (Charge hose : R410A special requirement)

-Vacuum pump

(Charge hose : R410A special requirement)

-Torque wrench:

1/4 (17 mm) 16 N•m (1,6 kgf•m)

3/8 (22 mm) 42 N•m (4,2 kgf•m)

1/2 (26 mm) 55 N•m (5,5 kgf•m)

5/8 (15,9 mm) 120 N•m (12,0 kgf•m)

-Copper pipe gauge adjusting projection margin

-Vacuum pump adapter

GB - 2

38VYX050/38VYX080

Accessory and refrigerant

E N G L I S H

Table II: Accessory and Installation Parts

 

Outdoor unit

Protective bush

Installation manual x 1

(For SM800AT only)

Drain nipple

 

Guard material for passage

Waterproof rubber cap

 

part (For SM800AT only)

 

 

 

Refrigerant Piping

 

Use copper pipe with 1.0 mm or more thickness for Ø 15.87.

 

• Piping kit used for the conventional refrigerant cannot be used.

 

• Flare nut and flare works are also different from those of the

 

conventional refrigerant.

• Use copper pipe with 0.8 mm or more thickness for Ø 6.4, Ø 9.52,

 

Take out the flare nut attached to the main unit of the air

Ø 12.7.

 

conditioner, and use it.

Table III: Length of refrigerant

 

 

Length of refrigerant pipe connected

 

Refrigerant addition.

 

 

to indoor/outdoor units.

 

 

 

 

 

 

 

 

 

20 m o shorter: for all units

 

Do not add refrigerant at installation site

 

 

 

 

 

 

 

(1)from 20 m to 30 m (38VYX 050)

 

Add 20 g of refrigerant for every meter of pipe beyond 20 m

 

 

 

 

 

 

 

(2)from 20 m to 50 m (38VYX 080)

 

Add 40 g of refrigerant for every meter of pipe beyond 20 m

 

 

 

 

 

 

NOTES: Caution at addition of refrigerant

 

 

 

 

 

(1)

When the total length of refrigerant pipe exceeds 20m, add 20g/m. The pipe total maximum length is 30 m. (Max. amount of additional refrigerant is 200g.).

 

Charge the refrigerant accurately. Overcharge may cause a serious trouble of compressor.

 

(2)

When the total length of refrigerant pipe exceeds 20m, add 40g/m. The pipe total maximum length is

50 m. (Max. amount of additional refrigerant is

 

1200g.). Charge the refrigerant accurately. Overcharge may cause a serious trouble of compressor.

 

 

 

 

 

 

 

Table IV: Operating limits (1)

 

 

 

 

 

 

Cooling (2)

 

Maximum conditions

 

 

outdoor temperature 43° C

 

 

 

 

 

 

 

 

 

 

indoor temperature 32° C d.b.; 23° C w.b.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Minimum conditions

 

 

outdoor temperature -5° C

 

 

 

 

 

 

 

 

 

 

indoor temperature 21° C d.b.; 15° C w.b.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Heating (2)

 

Maximum conditions

 

 

outdoor temperature 24° C d.b.; 18° C w.b.

 

 

 

 

 

 

 

 

 

 

indoor temperature 27° C d.b.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Minimum conditions

 

outdoor temperature –15° C d.b.

 

 

 

 

 

 

Mains power supply

Nominal single-phase voltage

 

220 240V ~ 50Hz

 

 

 

Operating voltage limits

 

min. 198V – max. 264V

 

 

 

 

 

Notes: 1. Data referred to the outdoor unit only.

 

 

2. According to prEN14511.

 

WARNING:

 

 

 

During heat pump operation unit will undergo several defrost cycles to

 

 

 

 

 

 

 

 

eliminate ice that might possibly collect on the outdoor unit in very low

 

 

 

 

ambient temperatures.

 

 

 

 

In these cycles, fan speed will automatically reduce and cannot be

d.b. - dry bulb;

w.b. - wet bulb

 

varied until defrost cycle is completed.

GB - 3

38VYX050/38VYX080

Selection of installation

Air purge

For air purge, use a vacuum pump.

Do not use refrigerant charged in the outdoor unit for air purge. (The refrigerant for air purge is not contained in the outdoor unit.)

Electrical cabling

Be sure to fix the power cables and indoor/outdoor connecting cables with clamps so that they do not contact with the cabinet, etc.

Installation Place

A place which provides a specified space around the outdoor unit.

A place where the operation noise and discharged air are not given to your neighbors.

A place that is not exposed to a strong wind.

A place that does not block a passage.

When the outdoor unit is installed in an elevated position, be sure to secure its feet.

There must be sufficient space for carrying in the unit.

A place where the drain water does not make any problem.

If the unit is installed in areas where heavy snowfalls may occur, it is necessary to raise its level at least 200 mm above the usual snow level.

500

 

Strong wind

CAUTION:

Install the outdoor unit at a place where discharge air is not blocked.

When an outdoor unit is installed in a place that is always exposed to a strong wind like a coast or on a high storey of a building, secure a normal fan operation by using a duct or a wind shield

When installing the outdoor unit in a place that is constantly exposed to a strong wind such as the upper stairs or rooftop of a building, apply the windproof measures referring to the following examples.

Install the unit so that its discharge port faces the wall of the building. Keep a distance 500 mm or more between the unit and the wall surface.

Supposing the wind direction during the operation season of the air conditioner, install the unit so that the discharge port is set at right angle to the wind direction.

Installation in the following places may result in some troubles. Do not install the unit in such places below.

A place full of machine oil.

A place full of sulphuric gas.

A place where high-frequency radio waves are likely to be generated as from audio equipment, welders, and medical equipment.

38VYX 080

Cover knockout for pipe connection

 

 

 

 

 

Rear direction

Pipe cover

 

Side direction

Down direction

Front direction

Knockout procedure

The indoor/outdoor connecting pipes can be connected to 4 directions. Take off the knockout part of the pipe cover in which pipes or wires pass through the base plate.

As shown in the figure, do not remove the pipe cover from the cabinet so that the knockout hole can be easily punched.

To knock out, punch the 3 connected parts with a screwdriver and remove the pipe cover by hand.

After marking the knockout hole, remove the burr and mount the attached protective bush and guard material for pass-through part in order to protect pipes and wires.

After connecting the pipes, be sure to mount the pipe cover. The pipe cover is easily mounted by cutting off the slit at the lower part of the cover.

How to remove the front panel

1.Remove screws of the front panel.

2.Pull the front panel downward.

Removing the front panel, the electric parts appear at the front side.

The power supply cables can be inserted into the pipe holes. Enlarge the pipe holes if they are too small.

Be sure to fix the power cable and indoor/outdoor connecting cable with bundling band sold on the market so that they do not make contact with the compressor and the hot pipes.

To ensure good tensile strength, the electric cables must be fastened using the cable-holder on the plate.

Strip

Electric parts boxFixing plate

Piping hole

Cable-holder for electric cablesFront panel

GB - 4

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