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INSTALLATION MANUAL
R-410A
38BC / 38BH
R-410A
Cooling only and 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
Dimensions and weight ................................................................................................................. 2
Connections................................................................................................................................... 2
Minimum clearances...................................................................................................................... 3
Operating limits .............................................................................................................................. 3
System charge............................................................................................................................... 3
General information....................................................................................................................... 4
Warnings: a void............................................................................................................................. 5
Refrigerant connections ................................................................................................................ 6/8
Electrical connections ................................................................................................................... 9/10
Electrical data................................................................................................................................ 10
Pump down and check the refrigerant charge............................................................................... 11
Maintenance .................................................................................................................................. 12
Troubleshooting ............................................................................................................................. 12
Guide for the owner and accessories ............................................................................................ 12
Installation instructions supplement.............................................................................................. 13
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 ser vicing
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.
•R-410A, as other HFCs, is only compatible with oils selected by the compressor manufacturer.
•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).
Unit size Oil type Quantity cc
07 PVE 440
09 PVE 500
12 PVE 670
14 PVE 670
ENGLISH
Table I
Cooling only Heat pump Hi-Wall
models models “42PHW/PHQ” series
(A/C) (H/P) A/C H/P
38BC-007G 38BH-007G 007 007 007 —
38BC-009G 38BH-009G 009 009 009 009
38BC-012G 38BH-012G 012 012 012 012
38BC-014G 38BH-014G 014 014 014 014 230V ~ 50Hz
38BCS009G — 009 — 009 009
38BCS012G — 012 — 012 012
38BCS014G — 014 — 014 014
Hi-Wall Console Power
“42HMC” series “42VMC” series supply
GB - 1
38BC / 38BH
R-410A
Dimensions and weight
A
B
C
Connections
DEE
Ø 8,3
햳
Mod.
38BC 38BH
07- 09 - 12 - 14 07- 09 - 12 - 14
A mm 750 750
B mm 590 590
C mm 280 280
8,3
13,3
D mm 470 470
E mm 140 140
F mm 310 310
kg 26,5 - 30 - 33 - 35 28,5 - 33 - 36 - 37
F
햲
햴
햲
햲 Outdoor unit
햳 Indoor unit
햴 Height difference
Table II: Connections
Model 007 009 012 014
Max. height difference 5 m 5 m 5 m 8 m
Max. pipe length 15 m 15 m 15 m 15 m
Pipe diameter Pipe diameter
Model Gas Liquid Gas Liquid
(Suction) (Liquid) (Suction) (Liquid)
mm inches
07
09
12
14
9,52 6,35 3/8” 1/4”
12,70 6,35 1/2” 1/4”
햴
햳
Minimum nominal thickness
Pipe diameter Minimum nominal thickness
inches - mm (mm)
1/4” - 6,35 0,80
3/8” - 9,52 0,80
1/2” - 12,70 0,80
All fittings are flare type.
Use only refrigeration grade pipes, (Cu DHP type according
to ISO 1337), seamless, degreased, deoxidized and
suitable for operating pressures of at least 4200 kPa and
with a burst pressure of 20700 kPa.
Under no circumstances must sanitary type copper pipe
be used.
GB - 2
38BC / 38BH
R-410A
Minimum clearances
B
A
F
A
C
Model 007-009-012-014
A mm 50
B mm 100
C mm 400
D mm 50
E mm 300
F mm 400
ENGLISH
D
E
DE
F
T able III: Operating limits
Cooling (2)
Heating (3)
Mains power supply Nominal single-phase voltage 230V ~ 50Hz
Notes: 1. Data referred to the outdoor unit only.
2. According to ISO 5151.2/T1.
3. According to ISO 5151.2/High+.
4. Units 38BCS 012 and 014 are provided with head pressure
control suitable up to –10°C ambient temperature
(38BCS009 up to –5°C).
d.b. - dry bulb; w.b. - wet bulb
(1)
Maximum conditions
Minimum conditions
Maximum conditions
Minimum conditions outdoor temperature –10°C d.b.
Operating voltage limits min. 198V – max. 264V
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.
outdoor temperature 43°C
indoor temperature 32°C d.b.; 23°C w.b.
outdoor temperature 15°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.
(4)
System charge
Size
Cooling only 007 630 10 25 –
Cooling only 009 660 10 25 –
Cooling only 012 730 10 25 –
Cooling only 014 980 10 25 100
Heat pump 007 630 10 25 –
Heat pump 009 820 10 25 –
Heat pump 012 940 10 25 –
Heat pump 014 920 10 25 150
Refrigerant Suitable up to Extra charge Extra charge (g)
charge (g) m g/m with indoor unit 42VMC
GB - 3
38BC / 38BH
6
R-410A
General information
Unit installation
R-410A systems operate at higher pressures than standard
R-22 systems. Do not use R-22 service equipment or
components on R-410A equipment.
Read this instruction manual thoroughly before starting the
installation.
• This unit complies with low-voltage (EEC/73/23) and electromagnetic compatibility (EEC/89/336) directives.
• Check that the impedance of the mains power supply is in
conformance with the unit power input indicated in the
electric data table IV, on page 10 (EN 61000-3-11).
• The installation must be carried out by a qualified installer.
• Follow all current national safety code requirements. In particular
ensure that a properly sized and connected ground wire is in place.
• Check that voltage and frequency of the mains power supply are
those required; the available power must be adequate to operate
any other possible appliances connected to the same line.
Also ensure that national safety code requirements have been
followed for the mains supply circuit.
• The mains supply must be connected as follows:
Models 38BC and 38BH: to the indoor unit.
Models 38BCS: to the outdoor unit.
• 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.
• After installation thoroughly test the system operation and explain
all system functions to the owner.
• Leave this manual with the owner for consultation during future
periodic maintenance.
• Use this unit only for factory approved applications: the unit is
suitable for outdoor installation.
• This installation manual describes the installation procedures of
the outdoor unit of a residential split system consisting of two units
manufactured by Carrier. Consult factory or a qualified system
engineer prior to connecting this unit to any other manufacturer's
indoor unit. Coupling units which have different control systems,
may cause irreversible damage and void the warranty protection.
The manufacturer declines any liability for system malfunction
resulting from unapproved coupling.
IMPORTANT:
During the unit installation make first refrigerant connections
and then electrical connections. If unit is uninstalled first
disconnect electrical cables, then refrigerant connections.
WARNING:
Disconnect the mains power supply switch before servicing
the system or handling any internal parts of the unit.
• The manufacturer declines any liability for damage resulting from
modifications or errors in the electrical or refrigerant connections.
• Failure to observe the installation instructions or use of the unit
under conditions other than those indicated in Table III “Operating
limits”, will immediately void the unit warranty.
• Failure to observe electric safety codes may cause a fire hazard in
case of short circuits.
• Inspect equipment for damage due to improper transportation or
handling: file an immediate claim with the shipping company.
Do not install or use damaged units.
• In case of any malfunctioning turn the unit off, disconnect the
mains power supply and contact a qualified service engineer.
• This equipment contains R-410A refrigerant, a substance that is
not depleting the ozone layer.
• All of the manufacturing and packaging materials used for
your new appliance are compatible with the environment and
can be recycled.
• Dispose of the packaging material in accordance with local requirements.
• This equipment contains refrigerant that must be disposed of in a
proper manner. When disposing of the unit after its operational life,
remove it carefully. The unit must then be delivered to an
appropriate disposal center or to the original equipment dealer.
• Carefully recover refrigerant within this unit before final disposal or
when servicing. Never vent refrigerant to atmosphere.
Use approved recovery equipment for R-410A refrigerant.
Do not use R-22 equipment.
Choosing the installation site
Positions to avoid:
• Exposed to direct sun.
• Too close to sources of heat radiation, vapour or flammable gas.
• Particularly dusty areas.
Recommendations:
• Choose a position protected from opposing winds.
• Choose a position sheltered from direct sun.
• Choose an area where air outlet and unit noise will not bother
your neighbours.
• Choose a position that allows for the clearances required.
• Floor structure should be adequately strong to support unit weight
and minimize vibration transmission.
• Consider a position which will not obstruct passageways or doors.
470
mm
• Fix the unit with locally purchased bolts buried in the block to
prevent overturning due to strong gusts of wind.
햳
• For heat pump models, unit must be adequately raised above
floor surface.
햶
햵
• To empty the condensate water to a drain while operating in
heating mode, insert the drain fitting into the hole underneath on
the centre of the base and use a vinyl pipe with a 16 mm inside
diameter. It must not be used at temperatures below 0
available for low temperature versions).
• 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 or alternatively to use the outdoor unit bracket kit.
mm
310
No. 4 Ø 8 mm pins.
Protrusion height from the
support surface max. 6 mm.
햲
햲 100 mm min.
햴
햵 Drain fitting
햶 Vinyl pipe
햳 20 mm gradient.
햴 Gravel-filled trench.
Snow
°C (not
GB - 4
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