38VYM
U
A
Q
L
R
I
T
E
Y
T
S
I
G
E
R
S
'
D
Y
O
A
S
S
U
R
A
N
C
E
L
L
•
I
S
1
O
0
9
0
INST ALLATION MANU AL
R-410A
38VYM
R-410A
Heat pump multisplit system outdoor unit
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
Minimum clearances................................................................................... 2
Connections................................................................................................ 3
Operating limits.... .... .... .... ........................................................................... 3
General information.... .... .... ........................................................................ 4
Warnings: av oid .... .... .... .... .... ...................................................................... 5
Refrigerant connections .... .... .... ................................................................. 6/8
Electrical connections....... .... ...................................................................... 9/11
Electrical data ............................................................................................. 11
Incorrect wiring and piping procedure check..... ......................................... 12
Test procedure .... .... .... .... .... ........................................................................ 13
Pump-down................................................................................................. 13
Maintenance ............................................................................................... 13
Guide for the owner........ .... .... ..................................................................... 13
Accessories ................................................................................................ 13
ENGLISH
R-410A – QUICK REFERENCE GUIDE
•R-410A refrigerant operates at pressures 50%-70% higher 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 of cylinder in
an upright position.
•R-410A systems must be charged with refrigerant in liquid phase. 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.
•POE oils absorb moisture rapidly. Do not expose oil to atmosphere.
•Never open system to atmosphere while it is under vacuum.
•Do not vent R-410A into the atmosphere.
•Use only Carrier matching indoor units.
Heat pump model Power supply
38VYM-18
38VYM-28 230V ~ 50Hz
38VYM-32
GB - 1
38VYM
R-410A
Dimensions, weight and minimum clearances
Dimensions and weight
B
EED
C
A
38VYM-18
Ø 8,5
A
B
EED
F
C
38VYM-28 / 38VYM-32
Ø 8,5
F
Model 38VYM-18 38VYM-28 38VYM-32
A mm 800 800 800
B mm 590 800 800
C mm 300 300 300
D mm 508 508 508
E mm 146 146 146
F mm 330 330 330
kg
kg 50 64 65
Minimum clearances
B
A
F
A
C
D
38VYM
E
Model
18 28 32
A mm 100 100 100
DE
B mm 250 250 250
C mm 500 500 500
F
D mm 100 100 100
E mm 670 670 670
F mm 400 400 400
Note:
For each installed system, the minimum clearance shown in the table only refers to the two configurations and arrangements illustrated.
GB - 2
38VYM
R-410A
Connections and operating limits
Connections
3
4
A
Table I: Connections
Indoor unit
Max. height difference
Pipe length
per unit
Total pipe length
(Minimum number of bends possible)
Minimum number of indoor units
to be connected
Note:
when only one indoor unit is connected, the connection pipe must have
a minimum length of 5 m.
IMPORTANT:
Additional refrigerant charge is unnecessary.
This air conditioner is designed with chargeless specification.
For 38VYM-28 and 38VYM-32 models, connection of only one
indoor unit is not allowed.
Two or more units must be connected.
H m10 15 15
Max m20 25 25
Min m2 2 2
Max m30 50 70
A
2
A
Outdoor unit
Indoor unit A1
Indoor unit A2
Indoor unit A3
Indoor unit A4
38VYM
18 28 32
A1-A2
(note)
1
A1-A2-A3
A1-A2-A3-A4
22
1
A
4
A
H
H
Pipe diameter
38VYM unit mm (inches) mm (inches)
18 A1, A2 6.35 (1/4”) 9.52 (3/8”)
28
32
Notes:
1)
If the indoor unit pipe is Ø 9.52 mm (3/8”) use the flare valve adapter
supplied.
2) All fittings are flare type.
3) 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.
Indoor (Liquid) (Suction)
A1 6.35 (1/4”) 12.70 (1/2”) (note 1)
A2, A3 6.35 (1/4”) 9.52 (3/8”)
A1, A3 6.35 (1/4”) 12.70 (1/2”) (note 1)
A2, A4 6.35 (1/4”) 9.52 (3/8”)
Liquid Gas
ENGLISH
3
A
A
1
A
2
T able II: Operating limits
Cooling
Heating
Mains power supply Nominal single-phase voltage 230V ~ 50 Hz
d.b. - dry bulb
w.b. - wet bulb
1) 38VYM-18: 15°C
2) 38VYM-18: –5°C
Maximum conditions
Minimum conditions
Maximum conditions
Minimum conditions Outdoor temperature –10°C
Operating voltage limits min. 198V – max. 264V
WARNING:
During heat pump operation the unit will undergo several defrost cycles to
eliminate ice that might collect on the outdoor unit at very low ambient
temperatures.
In these cycles, fan speed will automatically reduce or stop and cannot be
changed until defrost cycle is completed.
Outdoor temperature 43°C
Indoor temperature 32°C d.b.; 23°C w.b.
Outdoor temperature 10°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.
(1)
(2)
GB - 3
38VYM
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 electro-
magnetic 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 III, on page 11 (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 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 units
manufactured by Carrier. Consult the Carrier stockist to check the
possibility of connecting your multisplit unit to indoor units other
than those foreseen by the manufacturer. Do not connect 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 unit installation make first refrigerant connections and
then electrical connections. If the 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 II “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
does not deplete the ozone layer.
• All 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.
• Carefully recover refrigerant within this unit before final disposal or
when servicing. Never vent refrigerant to atmosphere.
Use approved recov ery equipment for R-410A refrigerant.
Do not use R-22 equipment.
The unit must then be delivered to an appropriate disposal center
or to the original equipment dealer.
• When lifting the unit, never use hooks inserted in the side
handles, use special equipment (e.g. lifting devices, trolleys,
etc.).
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.
• For heat pump models, unit must be adequately raised above
floor surface.
• To drain the condensate water to a drain while operating in
heating mode, insert the drain fitting into the hole underneath on
the left of the basin and use a vinyl pipe with a 16 mm internal
diameter. It must not be used at temperatures lower than 0°C.
Snow
• 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 use the outdoor
unit bracket kit.
100 mm min.
mm gradient
Gravel-filled trench.
Drain fitting
Vinyl pipe
GB - 4
Loading...