Carrier 38VYX050, 38VYX080 User Manual

38VYX050/38VYX080

•

INST ALLA TION MANU AL

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).

ENGLISH

Table I

Heat

pump

models

38VYX 050 050 050 050 050 38VYX 080 080 080 080 080

—— — — — —— — — —

Cassette Hi-Wall Satellite Console Power “40KQV” “42PQV” “40SQV” “42VQV” supply

220

÷240V ~ 50Hz

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 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.

• T urn 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.

) must be used for

• 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

ENGLISH

T able 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

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

• Use copper pipe with 0.8 mm or more thickness for Ø 6.4, Ø 9.52, Ø 12.7.

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

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

conventional refrigerant. Take out the flare nut attached to the main unit of the air conditioner, and use it.

T able III: Length of refrigerant

Length of refrigerant pipe connected 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.

T able IV : Operating limits

Cooling (2)

Heating (2)

Mains power supply Nominal single-phase voltage 220÷240V ~ 50Hz

(1)

Maximum conditions

Minimum conditions

Maximum conditions

Minimum conditions outdoor temperature –15°C d.b.

Operating voltage limits min. 198V – max. 264V

Refrigerant addition

outdoor temperature 43°C indoor temperature 32°C d.b.; 23°C w.b. outdoor temperature -5°C indoor temperature 21°C d.b.; 15°C w.b. outdoor temperature 24°C d.b.; 18°C w.b. indoor temperature 27°C d.b.

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

2. According to prEN14511.

d.b. - dry bulb; w.b. - wet bulb

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 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.

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 cov er b y 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

38VYX 080 Cover knockout for pipe connection





 Rear direction



 Pipe cover





GB - 4

 Side direction  Down direction  Front direction



 Electric parts box  Fixing plate  Piping hole









 Cable-holder for electric cables  Front panel

+ 9 hidden pages