IOM DUCTAIR 2003 Eng

IOM DUCTAIR 2003 Eng
OPERATION SERVICE AND
INSTALLATION MANUAL
DUCTAIR
NJCK / NJHK
NCCK / NCHK
Congratulations you have made a wise choice with the purchase of your Lennox
air conditioning set.
This product has been designed, assembled and supplied in one of our world class manufacturing
facilities and we feel sure that it will meet your expectations.
Lennox an international organization with world wide distribution takes pride in supplying you with
this product.
1.- UNIT SELECTION
1.1.- PRODUCT RANGE
1.2.- GENERAL DESCRIPTION
1.3.- SPECIFICATIONS
1.4.- TECHNICAL DATA
1.5.- ELECTRICAL DATA
1.6.- MOTOR FAN CHARACTERISTICS
1.7.- CAPACITY TABLES
1.8.- UNIT DIMENSIONS
1.9.- UNIT DESCRIPTION
1.10.- OPERATING LIMITS
1.11.- STANDARD/ OPTIONAL ENTRANCES
1.12.- OPTIONS
2
3
4-5
6-7
6-7
8
9-12
13-14
15
16
16-17
18-19
2.- INSTALLATION
2.1.2.2.2.3.2.4.2.5.-
POINTS TO KEEP IN MIND
INSTALLATION GUIDELINES
UNIT RECEPTION
INSTALLATION CLEARANCES
OPTIONAL OPERATIONS PRIOR TO UNIT INSTALLATION:
CHANGING THE POSITION OF BLOWERS AND AIR INTAKE
2.6.- DUCT INSTALLATION
2.7.- DRAINS
2.8.- SETTING UP TEMPLATES OF UNITS
2.9.- OPTIONAL OPERATIONS PRIOR TO UNIT INSTALLATION:
CHANGING THE POSITION OF AIR INLET PANEL FOR INDOOR UNITS LNXO
2.10.- UNIT LOCATION OF INDOOR UNIT LNXO
2.11.- ELECTRICAL CONNECTIONS
2.12.- REFRIGERANT CONNECTIONS
20
21
21
21
22
22
23
24
25
25
26-27
28-29
3.- COMMISSIONING AND OPERATION
3.1.3.2.3.3.3.4.-
DATA PAGE FOR UNIT COMMISSIONING
PRECAUTIONS TO BE TAKEN ON INSTALLATION
PRELIMINARY CHECKS
STEPS TO FOLLOW FOR COMMISSIONING THE UNIT
30
31
31
32
4.- MAINTENANCE
33
34
34
4.1.- PREVENTIVE MAINTENANCE
4.2.- CORRECTIVE MAINTENANCE
4.3.- FAILURE DIAGNOSIS
1
1.- UNIT SELECTION
R-407C
1.1.- PRODUCT RANGE
COOLING ONLY
LNXO INDOOR UNIT IN COMBINATION WITH AXIAL FAN OUTDOOR UNIT
MODEL
NJCK 018
NJCK 024
NJCK 030
NJCK 030
NJCK 036
NJCK 036
NJCK 036
NJCK 048
NJCK 048
NJCK 060
NJCK 060
NJCK 070
NJCK 070
NJCK 080
NJCK 080
OUTDOOR UNIT
KJCK 018
KJCK 024
KJCK 030
KJCK 030
KJCK 036
KJCK 036
KJCK 036
KJCK 048
KJCK 048
KJCK 060
KJCK 060
KJCK 070
KJCK 070
KJCK 080
KJCK 080
INDOOR UNIT
V / Ph / 50 Hz
LNXO 018
LNXO 024
230V-1Ph
230V-1Ph
230V-1Ph
400V-3Ph
230V -1Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
LNXO 030
LNXO 036
LNXO 048
LNXO 060
LNXO 070
LNXO 080
NOMINAL CAPACITY W
COOLING
5.000
6.500
POWER INPUT kW
COOLING
1,95
2,5
7.600
3,0
9.100
3,6
11.300
4,2
13.300
5,3
16.300
6,2
18.000
7,2
LNXO INDOOR UNIT IN COMBINATION WITH CENTRIFUGAL FAN OUTDOOR UNIT
MODEL
NCCK 018
NCCK 024
NCCK 030
NCCK 036
NCCK 036
NCCK 036
NCCK 048
NCCK 048
NCCK 060
NCCK 060
NCCK 070
NCCK 070
NCCK 080
NCCK 080
OUTDOOR UNIT
KCCK 018
KCCK 024
KCCK 030
KCCK 036
KCCK 036
KCCK 036
KCCK 048
KCCK 048
KCCK 060
KCCK 060
KCCK 070
KCCK 070
KCCK 080
KCCK 080
INDOOR UNIT
LNXO 018
LNXO 024
LNXO 030
LNXO 036
LNXO 048
LNXO 060
LNXO 070
LNXO 080
NOMINAL CAPACITY W
COOLING
5100
6600
7700
V / Ph / 50 Hz
230V-1Ph
230V-1Ph
230V-1Ph
230V -1Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
POWER INPUT kW
COOLING
2,02
2,6
3,3
9000
3,87
11000
4,7
13500
5,8
16100
6,72
18300
7,84
HEAT PUMP
LNXO INDOOR UNIT IN COMBINATION WITH AXIAL FAN OUTDOOR UNIT
MODEL
NJHK 018
NJHK 024
NJHK 030
NJHK 036
NJHK 036
NJHK 036
NJHK 048
NJHK 048
NJHK 060
NJHK 060
NJHK 070
NJHK 070
NJHK 080
NJHK 080
OUTDOOR UNIT
KJHK 018
KJHK 024
KJHK 030
KJHK 036
KJHK 036
KJHK 036
KJHK 048
KJHK 048
KJHK 060
KJHK 060
KJHK 070
KJHK 070
KJHK 080
KJHK 080
INDOOR UNIT
LNXO 018
LNXO 024
LNXO 030
LNXO 036
LNXO 048
LNXO 060
LNXO 070
LNXO 080
V / Ph / 50 Hz
230V-1Ph
230V-1Ph
230V-1Ph
230V -1Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
NOMINAL CAPACITY W
COOLING
HEATING
5000
5150
6500
6500
7600
8000
POWER INPUT kW
COOLING
HEATING
1,95
1,85
2,5
2,38
3,0
2,9
9100
9300
3,6
3,35
11300
11900
4,2
4,2
13300
13600
5,3
4,9
16300
16700
6,2
5,9
18000
18200
7,2
6,7
LNXO INDOOR UNIT IN COMBINATION WITH CENTRIFUGAL FAN OUTDOOR UNIT
MODEL
NCHK 018
NCHK 024
NCHK 030
NCHK 036
NCHK 036
NCHK 036
NCHK 048
NCHK 048
NCHK 060
NCHK 060
NCHK 070
NCHK 070
NCHK 080
NCHK 080
OUTDOOR UNIT
KCHK 018
KCHK 024
KCHK 030
KCHK 036
KCHK 036
KCHK 036
KCHK 048
KCHK 048
KCHK 060
KCHK 060
KCHK 070
KCHK 070
KCHK 080
KCHK 080
INDOOR UNIT
LNXO 018
LNXO 024
LNXO 030
LNXO 036
LNXO 048
LNXO 060
LNXO 070
LNXO 080
V / Ph / 50 Hz
230V-1Ph
230V-1Ph
230V-1Ph
230V -1Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
NOMINAL CAPACITY W
COOLING
HEATING
5400
5100
6850
6600
8400
7700
POWER INPUT kW
COOLING
HEATING
2,06
2,02
2,54
2,6
3,23
3,3
9000
9200
3,87
3,5
11000
11400
4,7
4,2
13500
14400
5,8
5,65
16100
16450
6,72
6,03
18300
19000
7,84
7,3
NOTE: The units at 230V-3Ph power supply are special. Ask for availability.
2
1.- UNIT SELECTION
1.2.-GENERAL DESCRIPTION
INDOOR UNIT LNXO
OUTDOOR UNIT
KJCK/KJHK
(axial fan unit)
OUTDOOR UNIT
KCCK/KCHK
(centrifugal fan unit)
The duct air conditioner split on version cooling only and heat pump,
are units condensed by air, designed for small shopping center and
housing.
The indoor unit with direct air supply, cools, heats, dehumidifies, and
cleans air of the sites.
The indoor unit can be combined with condensing units provided with
axial fan (KJCK/KJHK) for outside installation, or with condensing units
provided with centrifugal fan (KCCK/KCHK) for installation inside buildings.
A wide range of options, completed-factory assembled are also
available, for easier installation.
COOLING CIRCUIT
CABINET
The indoor unit chassis is made of galvanized steel and is
fully insulated inside. The cabinet includes brackets for
holding the unit.
Made of welded dehydrated copper pipe with service port
on the suction and liquid lines.
Coupling valves on outdoor unit (all models) and flare
connection on indoor unit (except models 070-080, with
welded connections) to make easier the refrigerant
connections. The expansion system for cooling and heating
takes place on outdoor unit, except for models 070-080
which cooling expansion system is located on indoor unit.
Heat pump units are equipped as well with unidirectional
and four way reversing valves.
The outdoor unit chassis is made of electrozinced steel with
epoxy painted finished, able to work with outdoors under
the worst conditions. The unit is completed with handles,
which assist easy installation. Its compact dimensions and
features allow the unit to be positioned in almost any location.
HEAT EXCHANGERS
ELECTRIC CIRCUIT
Made-up with copper pipes and aluminium wings, designed
to get a high heating transfer. Their dimensions and design
of the circuits have been specially worked to obtain the
maximum performance of the exchanger increasing the
power of the unit and reducing the consumption.
The electrical panel includes a printed board, which controls
the operating of the unit, defrosting timer thermostat and
system of reversing on heat pump cycle. The heat pump
outdoor unit includes a printed board with a defrosting timer,
for safety device.
CONTROL
COMPRESSOR
The indoor unit is supplied with a digital wired thermostat
with 3 speed and ON TIMER/OFF TIMER function (see
manual supplied with the thermostat for details).
All units are provided with scroll compressor, cooling by a
suction gas with thermic protection inside the engine, so
no other additional protection is required. It is mounted on
anti-vibration devices both external and internal.
The 400V-III units are supplied with a three phase detector
which avoids the unit starts, unless the phase connections
are right.
In heat pump units, the compressors are provided with a
crankcase heater to heat the oil in the compressor so that
a suitable lubrication can take place; this is an option for
cooling only units.
AUTO
SLEEP
DRY AUTO COOL HEAT FAN SWING
KEY
LOCK
MON TUE WED THU FRI SAT
SUN
TIMER ACTIVE
SET TIMER
SET CLOCK
COOL
TEMP.
HEAT
TEMP.
ROOM
TEMP.
ON / OFF
SLEEP
SWING
FAN
MODE
ON TIMER
OFF TIMER
DAY
HOUR
SET TEMP
CLOCK
HOLD
MINUTE
Control OLT-1X
OPTIONS
INDOOR UNIT
• One step electrical heater.
• Hot water coils.
• Kit discharge plenum and Kit air inlet plenum.
• Condensate pump.
OUTDOOR UNIT TYPE KJCK/KJHK
• ON/OFF Condensation pressure control.
• Proportional condensing pressure control.
• Kit compressor isolation.
• Supporting unit brackets (depends on models).
• Long distance unit version (50m of refrigerant
connection).
OUTDOOR UNIT TYPE KCCK/KCHK
• ON/OFF Condensation pressure control.
• Proportional condensing pressure control.
• Main switch (depends on models).
• Kit compressor isolation.
FANS
The indoor units include centrifugal motor fan of two / three
speed, with high static pressure, to adapt the fan features
to installation requirements.
Depending on outdoor unit type, it includes one or two axial
motor fan (units KJCK/KJHK), or one centrifugal fan (units
KCCK/KCHK),with exceptional features in noise level and
flow.
AIR FILTER
A polypropylene air filter is incorporated on models from
018 to 060. And a polyester extinguishable material air filter
is incorporated for models 070-080.
Both high efficiency filtrate, washable and easy to install.
3
1.- UNIT SELECTION
1.3.- SPECIFICATIONS
SET WITH AXIAL FAN OUTDOOR UNIT
MODEL
NJCK /
NJHK
018
NJCK /
NJHK
024
NJCK /
NJHK
030
NJCK /
NJHK
036
NJCK /
NJHK
048
NJCK /
NJHK
060
NJCK /
NJHK
070
NJCK /
NJHK
080
Nominal cooling capacity (*)
W
5000
6500
7600
9100
11300
13300
16300
18000
Nominal heating capacity NJHK (**)
W
5150
6500
8000
9300
11900
13600
16700
18200
KJCK /
KJHK
018
KJCK /
KJHK
024
KJCK /
KJHK
030
KJCK /
KJHK
036
KJCK /
KJHK
048
KJCK /
KJHK
060
KJCK /
KJHK
070
KJCK /
KJHK
080
1 / Scroll
1 / Scroll
1800
2800
Capillary
Capillary
OUTDOOR UNIT
COMPRESSOR Nr / Type
3
FAN Air flow
m /h
EXPANSION (cooling only / heat pump)
1 / Scroll 1 / Scroll
3100
3200
1 / Scroll
5500
1 / Scroll 1 / Scroll
5500
5200
1 / Scroll
5200
Capillary Restrictor Restrictor Restrictor --/Restrictor --/Restrictor
Cooling only units
Kg
53
57
70
73
99
109
130
131
Heat pump units
Kg
55
60
72
76
102
112
135
136
WEIGHT
DIMENSIONS
Height
(H)
mm
629
629
781
931
1239
1239
1230
1230
Width
(W)
mm
773
773
973
973
973
973
998
998
Depth
(D)
mm
333
333
333
333
333
333
386
386
PACKING DIMENSIONS (HxWxD)
mm
REFRIGERANT COUPLING
Liquid pipe
970x1072 1120x1072
x395
x395
679x860x385
1390x1072x395
1385x1102x452
1/4"
1/4"
3/8"
3/8"
3/8"
3/8"
1/2"
1/2"
1/2"
5/8"
5/8"
3/4"
3/4"
3/4"
7/8"
7/8"
LNXO
018
LNXO
024
LNXO
030
LNXO
036
LNXO
048
LNXO
060
LNXO
070
LNXO
080
Max
915
1200
1350
1725
2150
2450
3600
3950
Min
600
740
920
1000
1630
2060
2500
2900
Pa
60
60
100
120
100
100
160
140
--
--
--
--
--
--
Kg
35
35
43
44
57
58
85
86
(H)
mm
235
235
287
287
315
315
415
415
Width
(W)
mm
1076
1076
1076
1076
1271
1271
1380
1380
Depth
(D)
mm
535
535
700
700
750
750
850
850
Gas pipe
INDOOR UNIT
FAN
Air flow
m3/h
Available pressure max (2)
EXPANSION
WEIGHT
DIMENSIONS
Height
235x1170x665
290x1170x830
Liquid pipe
1/4"
1/4"
3/8"
3/8"
3/8"
3/8"
1/2"
1/2"
Gas pipe
1/2"
5/8"
5/8"
3/4"
3/4"
3/4"
7/8"
7/8"
PACKING DIMENSIONS
(HxWxD) mm
320x1365x875
Restrictor Restrictor
555x1460x975
REFRIGERANT COUPLING
(*) Air intake temperature indoor interchange: 27°C DB / 19°C WB
(*) Air intake temperature outdoor interchange: 35ºC DB
(**) Air intake temperature indoor interchange: 20°C DB / 12ºC WB
(**) Air intake temperature outdoor interchange: 7°C DB / 6ºC WB
(2) With minimum admissible flow volumes and high speed fan
4
DB.- Dry bulb
WB.- Wet bulb
1.- UNIT SELECTION
1.3.- SPECIFICATIONS
SET WITH CENTRIFUGAL FAN OUTDOOR UNIT
MODEL
NCCK /
NCHK
018
NCCK /
NCHK
024
NCCK /
NCHK
030
NCCK /
NCHK
036
NCCK /
NCHK
048
NCCK /
NCHK
060
NCCK /
NCHK
070
NCCK /
NCHK
080
Nominal cooling capacity (*)
W
5100
6600
7700
9000
11000
13500
16100
18300
Nominal heating capacity NCHK (**)
W
5400
6850
8400
9200
11400
14400
16450
19000
KCCK /
KCHK
018
KCCK /
KCHK
024
KCCK /
KCHK
030
KCCK /
KCHK
036
KCCK /
KCHK
048
KCCK /
KCHK
060
KCCK /
KCHK
070
KCCK /
KCHK
080
1 / Scroll
1 / Scroll
1 / Scroll
1 / Scroll
1 / Scroll 1 / Scroll 1 / Scroll
1 / Scroll
Max
Min
2600
2500
3150
3100
3400
4950
4950
5900
1800
1750
2000
2000
2400
3750
3750
4350
Pa (2)
70
90
100
100
90
120
120
150
Capillary
Capillary
OUTDOOR UNIT
COMPRESSOR Nr / Type
FAN
Air flow
m3/h.
Available static pressure
EXPANSION (cooling only / heat pump)
Capillary Restrictor Restrictor Restrictor --/Restrictor --/Restrictor
Cooling only units
Kg
73
76
87
87
135
180
185
195
Heat pump units
Kg
78
81
92
92
140
185
190
200
(H)
mm
485
485
505
505
495
595
595
595
Width
(W)
mm
975
975
1050
1050
1250
1300
1300
1450
Depth
(D)
mm
625
625
750
750
820
830
830
WEIGHT
DIMENSIONS
Height
PACKING DIMENSIONS
(HxWxD)
mm
REFRIGERANT COUPLING
Liquid pipe
655x1059x725
675x1140x870
625x1350
x919
720x1400x929
900
720x1550
x1000
1/4"
1/4"
3/8"
3/8"
3/8"
3/8"
1/2"
1/2"
1/2"
5/8"
5/8"
3/4"
3/4"
3/4"
7/8"
7/8"
LNXO
018
LNXO
024
LNXO
030
LNXO
036
LNXO
048
LNXO
060
LNXO
070
LNXO
080
Max
915
1200
1350
1725
2150
2450
3600
3950
Min
600
740
920
1000
1630
2060
2500
2900
Pa
60
60
100
120
100
100
160
140
--
--
--
--
--
--
Kg
35
35
43
44
57
58
85
86
mm
235
235
287
287
315
315
415
415
Width
mm
1076
1076
1076
1076
1271
1271
1380
1380
Depth
mm
535
535
700
700
750
750
850
850
Gas pipe
INDOOR UNIT
FAN
Air flow
m3/h.
Available pressure max (2)
EXPANSION
WEIGHT
DIMENSIONS
Height
PACKING DIMENSIONS
(HxWxD) mm
REFRIGERANT COUPLING
Liquid pipe
Gas pipe
235x1170x665
290x1170x830
1/4"
1/4"
3/8"
3/8"
3/8"
3/8"
1/2"
1/2"
1/2"
5/8"
5/8"
3/4"
3/4"
3/4"
7/8"
7/8"
(*) Air intake temperature indoor interchange: 27°C DB / 19°C WB
(*) Air intake temperature outdoor interchange: 35ºC DB
(**) Air intake temperature indoor interchange: 20°C DB / 12ºC WB
(**) Air intake temperature outdoor interchange: 7°C DB / 6ºC WB
(2) With minimum admissible flow volumes and high speed fan
5
320x1365x875
Restrictor Restrictor
555x1460x975
DB.- Dry bulb
WB.- Wet bulb
1.- UNIT SELECTION
SET WITH AXIAL FAN OUTDOOR UNIT
1.4.- TECHNICAL DATA
NJCK
NJHK
018
SOUND LEVELS
NJCK
NJHK
024
NJCK
NJHK
030
NJCK
NJHK
036
NJCK
NJHK
048
NJCK
NJHK
060
NJCK
NJHK
070
NJCK
NJHK
080
44
47
47
50
47
47
NJCK
NJHK
070
NJCK
NJHK
080
dBA
34
37
37
38
37
40
Sound
Indoor unit (1) High
pressure (Lp)
38
40
40
42
40
43
Low dBA
level
36
42
43
43
46
46
Outdoor unit (2)
dBA
(1) Sound pressure level measured to a distance of 2,5m from the unit, free space.
(2) Sound pressure level measured to a distance of 10m from the unit, free space, directibility ±3db.
1.5.- ELECTRICAL DATA
NJCK
NJHK
018
Voltage
V/f (50 Hz)
NJCK
NJCK
NJHK
NJHK
024
030
230V / 1 Ph
NJCK
NJHK
036
NJCK
NJHK
048
230V-400V / 3 Ph
400V/3Ph (3)
Nominal total input power
cooling capacity
Nominal total input power
heat pump NJHK
Max. current
Kw
1,95
2,50
3,00
3,60
4,20
5,30
6,20
7,20
Kw
1,85
2,38
2,90
3,35
4,20
4,90
5,90
6,70
230V-1Ph
12,31
16,25
19,39
21,11
8,29
19,21
9,71
23,08
12,48
23,77
15,37
28,19
18,39
31,99
20,69
76
95
40
91 / 46
98 / 50
133 / 66
172 / 74
178 / 101
KJCK
KJHK
030
KJCK
KJHK
036
KJCK
KJHK
048
KJCK
KJHK
060
KJCK
KJHK
070
KJCK
KJHK
080
A
230V-3Ph
400V-3Ph
47
Starting current
61
A
KJCK
KJHK
018
OUTDOOR UNIT
KJCK
KJHK
024
230V / 1 Ph
Voltage
V/f (50 Hz)
230V-400V / 3 Ph
400V/3Ph (3)
Nominal total input power
cooling capacity
Nominal total input power
heat pump KJHK
Max. current
A
Starting current
Kw
1,83
2,33
2,68
3,22
3,69
4,77
5,57
6,50
Kw
1,73
2,21
2,58
2,97
3,69
4,37
5,27
6,00
230V-1Ph
11,79
15,52
18,02
19,44
6,92
17,54
8,04
20,85
10,25
21,45
13,05
25,45
15,65
28,95
17,65
76
95
40
91 / 46
98 / 50
133 / 66
172 / 74
178 / 101
LNXO
030
LNXO
036
LNXO
048
LNXO
060
LNXO
070
LNXO
080
230V-3Ph
400V-3Ph
A
47
LNXO
018
INDOOR UNIT
Voltage
NJCK
NJHK
060
61
LNXO
024
V/f (50 Hz)
Nominal total input power
cooling capacity
Nominal total input power
heat pump
Max. current
Starting current
230V / 1 Ph
Kw
0,12
0,17
0,32
0,38
0,51
0,53
0,63
0,70
Kw
0,12
0,17
0,32
0,38
0,51
0,53
0,63
0,70
A
0,52
0,73
1,37
1,67
2,23
2,32
2,74
3,04
A
2,08
2,92
5,48
6,68
8,92
9,28
10,96
12,16
(3) Voltage only for cooling only unit NJCK
6
1.- UNIT SELECTION
SET WITH CENTRIFUGAL FAN OUTDOOR UNIT
1.4.- TECHNICAL DATA
NCCK
NCHK
018
SOUND LEVELS
NCCK
NCHK
024
NCCK
NCHK
030
NCCK
NCHK
036
NCCK
NCHK
048
NCCK
NCHK
060
NCCK
NCHK
070
NCCK
NCHK
080
dBA
34
37
37
38
37
40
44
47
Sound
Indoor unit (1) High
pressure (Lp)
38
40
40
42
40
43
47
50
dBA
Low
level
40
40
41
41
43
45
45
49
dBA
Outdoor unit (2)
(1) Sound pressure level measured to a distance of 2,5m from the unit.
(2) Sound pressure level measured to a distance of 10m from the unit, free space, with discharge and inlet plenum installed.
1.5.- ELECTRICAL DATA
NCCK
NCHK
018
Voltage
Max. current
NCCK
NCHK
030
NCCK
NCHK
036
NCCK
NCHK
048
NCCK
NCHK
060
NCCK
NCHK
070
NCCK
NCHK
080
230V / 1 Ph
V/f (50 Hz)
Nominal total input power
cooling capacity
Nominal total input power
heat pump NCHK
NCCK
NCHK
024
230V-400V / 3 Ph
Kw
2,02
2,60
3,30
3,87
4,70
5,80
6,72
7,84
Kw
2,06
2,54
3,23
3,50
4,20
5,65
6,03
7,30
230V-1Ph
13,62
17,23
21,77
23,37
24,63
14,03
27,02
16,62
30,84
19,04
37,24
22,84
91 / 46
98 / 50
133 / 66
172 / 74
178 / 101
KCCK
KCHK
036
KCCK
KCHK
048
KCCK
KCHK
060
KCCK
KCHK
070
KCCK
KCHK
080
A
230V-3Ph
400V-3Ph
Starting current
A
21,47
11,97
47
KCCK
KCHK
018
OUTDOOR UNIT
61
76
KCCK
KCHK
024
KCCK
KCHK
030
95
230V / 1 Ph
Voltage
V/f (50 Hz)
Nominal total input power
cooling capacity
Nominal total input power
heat pump KCHK
Max. current
A
Starting current
Kw
1,90
2,43
2,98
3,49
4,19
5,27
6,09
7,14
Kw
1,94
2,37
2,91
3,12
3,69
5,12
5,40
6,60
230V-1Ph
13,10
16,50
20,40
21,70
22,40
11,80
24,70
14,30
28,10
16,30
34,20
19,80
91 / 46
98 / 50
133 / 66
172 / 74
178 / 101
LNXO
036
LNXO
048
LNXO
060
LNXO
070
LNXO
080
230V-3Ph
400V-3Ph
A
19,80
10,30
47
LNXO
018
INDOOR UNIT
Voltage
230V-400V / 3 Ph
61
76
LNXO
024
LNXO
030
V/f (50 Hz)
Nominal total input power
cooling capacity
Nominal total input power
heat pump
95
230V / 1 Ph
Kw
0,12
0,17
0,32
0,38
0,51
0,53
0,63
0,70
Kw
0,12
0,17
0,32
0,38
0,51
0,53
0,63
0,70
Max. current
A
0,52
0,73
1,37
1,67
2,23
2,32
2,74
3,04
Starting current
A
2,08
2,92
5,48
6,68
8,92
9,28
10,96
12,16
7
1.- UNIT SELECTION
1.6.- MOTOR-FAN CHARACTERISTICS
INDOOR UNIT MOTOR-FAN
LNXO 018
m3/h
HIGH SPEED
MEDIUM SPEED
LOW SPEED
m3/h
HIGH SPEED
MEDIUM SPEED
LOW SPEED
m3/h
HIGH SPEED
MEDIUM SPEED
LOW SPEED
m3/h
HIGH SPEED
MEDIUM SPEED
LOW SPEED
m3/h
HIGH SPEED
LOW SPEED
AIR FLOW
m3/h
HIGH SPEED
LOW SPEED
LNXO 070
AIR FLOW
m3/h
HIGH SPEED
LOW SPEED
m3/h
HIGH SPEED
LOW SPEED
AIR FLOW
LNXO 024
AIR FLOW
LNXO 030
AIR FLOW
LNXO 036
AIR FLOW
LNXO 048
AIR FLOW
LNXO 060
LNXO 080
AIR FLOW
0
----750
0
----915
0
----1180
0
----1155
0
----0
----0
----0
-----
AVAILABLE STATIC PRESSURE
20
40
60
80
100 120
915 760 600
------------820 680 --680 600 --------20
40
60
80
100 120
1200 1050 890
------1050 890 740
------------830 740 --20
40
60
80
100 120
--- 1300 1200 1100 920 --1215 1100 1000 ------1130 1000 --------20
40
60
80
100 120
--- 1700 1625 1530 1370 1150
1350 1270 1180 1070 ----1120 1050 --------20
40
60
80
100 120
--- 2150 2050 1950 1800 1630
1765 1700 1630 ------20
40
60
80
100 120
--- 2450 2400 2300 2160 --2155 2115 2060 ------20
40
60
80
100 120
--- 3600 3400 3225 3050 2850
3425 3250 3100 2900 2700 2500
20
40
60
80
100 120
--- 3950 3750 3600 3450 3250
3425 3250 3100 2900 -----
Pa
140
------140
------140
------140
------140
----140
----140
2675
--140
3050
---
160
------160
------160
------160
------160
----160
----160
2500
--160
-----
--- Out of fan working limits
OUTDOOR UNIT CENTRIFUGAL FAN
AVAILABLE STATIC PRESSURE Pa
MODELS
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
KCCK 018
KCHK 018
2600
2500
2400
2350
2300
2200
2150
1800
-------------------
KCCK 024
KCHK 024
2500
2400
2350
2300
2200
2150
2050
1950
1870
1750
---------------
KCCK 030
KCHK 030
3150
3000
2825
2700
2600
2525
2450
2350
2250
2125
2000
-------------
AIR FLOW
KCCK 036
KCHK 036
3100
2900
2800
2700
2600
2500
2400
2300
2200
2100
2000
-------------
NOMINAL FLOW
8
m3/h
KCCK 048
KCHK 048
3400
3325
3160
3075
2980
2890
2790
2690
2580
2400
---------------
KCCK 060/070
KCHK 060/070
4950
4850
4750
4625
4525
4425
4325
4225
4125
4040
3940
3840
3750
---------
KCCK 080
KCHK 080
5900
5800
5700
5600
5495
5390
5280
5180
5075
4975
4875
4775
4675
4575
4460
4350
---
1.- UNIT SELECTION
1.7.- COOLING CAPACITIES
SET WITH AXIAL FAN OUTDOOR UNIT
NJCK / NJHK 018
AIR INLET
CAPACITY
TEMPERATURE POWER INPUT
INDOOR UNIT
IN kW 25°C 30°C 35°C
TOTAL
CAPACITY
4,67 4,51 4,33
21°C DB
15°C
WB
24°C
DB
17°C
WB
27°C
DB
19°C
WB
29°C
DB
21°C
WB
32°C
DB
23°C
WB
SENSIBLE CAP.
3,39
POWER INPUT
3,31
NJCK / NJHK 024
3,22
40°C
4,13
45°C
3,92
25°C
6,08
30°C
35°C
45°C
5,10
30°C
35°C
40°C
45°C
5,64
40°C
5,39
25°C
5,87
7,11
6,86
6,29
3,12
3,01
4,46
4,35
4,24
4,11
3,98
5,18
5,05
6,59
4,92
4,77
5,97
4,61
3,64
1,52
1,69
1,87
2,09
2,35
2,00
2,21
2,45
2,73
3,06
2,41
2,65
2,93
3,25
TOTAL CAPACITY 5,01
4,83
4,64
4,43
4,20
6,52
6,30
6,05
5,78
5,48
7,63
7,36
7,08
6,76
6,41
SENSIBLE CAP.
3,61
1,54
3,52
1,71
3,43
1,90
3,34
2,12
4,53
2,48
4,40
2,76
4,27
3,10
5,00
4,76
3,54
2,15
5,10
3,44
2,42
---
5,39
2,68
7,91
5,72
2,71
8,49
5,26
2,96
7,60
5,60
3,00
8,16
4,95
3,68
6,89
5,27
1,57
TOTAL CAPACITY 5,76
3,65
1,95
5,34
5,52
2,43
8,19
5,85
5,11
3,29
3,73
1,73
5,56
4,75
2,02
7,00
5,04
4,65
2,23
5,18
3,23
2,39
4,51
7,80
7,40
3,82
1,59
3,73
1,76
3,64
1,96
3,54
2,19
---
TOTAL CAPACITY 6,17
5,96
5,72
POWER INPUT
TOTAL CAPACITY 5,37
SENSIBLE CAP.
3,82
POWER INPUT
SENSIBLE CAP.
POWER INPUT
SENSIBLE CAP.
POWER INPUT
4,01
1,61
3,93
1,79
3,84
1,99
WB
24°C
DB
17°C
WB
27°C
DB
19°C
WB
29°C
DB
21°C
WB
32°C
DB
23°C
WB
SENSIBLE CAP.
6,32
POWER INPUT
2,82
6,50
6,20
5,88
2,05
7,50
4,93
2,26
7,24
4,80
2,50
6,96
4,68
2,80
6,65
4,54
3,15
6,30
2,46
8,80
4,92
2,30
4,80
---
5,03
2,08
2,55
4,68
2,85
4,53
3,19
5,85
2,50
5,72
2,75
5,58
3,04
5,43
3,38
5,27
3,78
5,47
---
8,04
7,76
7,46
7,12
---
9,44
9,11
8,76
8,37
---
3,74
2,23
---
5,30
6,16
6,03
5,89
5,74
---
---
2,11
4,94
2,89
-----
2,53
2,79
3,09
3,43
---
POWER INPUT
40°C
45°C
25°C
30°C
35°C
40°C
45°C
25°C
30°C
40°C
45°C
7,84
6,02
7,50
5,86
7,11
10,46
10,12
9,76
9,36
8,92
12,33
5,68
7,81
7,64
7,46
7,27
7,06
9,18
11,91 11,46 10,99
8,97 8,75 8,52
10,48
8,28
3,12
8,76
6,62
3,16
3,46
3,83
4,24
3,49
6,17
11,23
8,35
3,51
4,14
10,49
8,00
4,18
5,63
7,64
6,11
4,30
4,98
9,60
7,59
5,03
4,69
8,06
6,30
3,88
4,53
10,07
7,81
4,57
4,29
8,43
6,46
3,50
3,80
10,88
8,18
3,83
13,27
9,82
4,36
9,41
7,04
9,10
6,90
8,66
6,72
3,94
8,21
6,52
12,07
8,87
11,69
8,70
10,83
8,33
10,32
8,11
14,27
10,44
12,82 12,34 11,83
9,61 9,39 9,16
4,77 5,23 5,73
13,79 13,30 12,73
10,23 10,00 9,77
4,86 5,30 5,83
11,29
8,91
6,27
12,14
9,52
6,39
POWER INPUT
6,88
2,95
TOTAL CAPACITY 11,21
3,26
10,84
3,61
10,43
SENSIBLE CAP.
7,43
7,27
3,32
3,67
9,30
4,36
8,80
3,53
3,85
4,61
5,08
12,97
8,86
3,55
12,56
12,13
11,64
11,10
4,45
15,34
8,52
4,24
8,32
4,65
8,10
5,13
10,44
4,53
14,83 14,29 13,70
10,23 10,01 9,77
4,95 5,42 5,94
13,06
8,70
3,88
13,93
13,50
13,03
12,51
11,92
16,48
15,94 15,36 14,73
---
7,10
---
9,36
9,19
9,01
8,82
8,60
11,03
---
4,06
---
3,58
3,91
4,28
4,70
5,18
4,63
10,82 10,59 10,35
5,05 5,53 6,06
4,42
---
NJCK / NJHK 080
24°C
DB
17°C
WB
27°C
DB
19°C
WB
29°C
DB
21°C
WB
32°C
DB
23°C
WB
11,23 10,97 10,69 10,41 10,12
POWER INPUT
5,00
6,00
6,59
7,24
TOTAL CAPACITY 16,35 15,79 15,20 14,59 13,94
12,45
12,16 11,85
11,52 11,15
5,70
6,27
7,65
6,92
8,47
18,03
17,41 16,74 16,01 15,18
11,98 11,72 11,44 11,16 10,86 13,31
5,08 5,56 6,09 6,68 7,35
5,82
POWER INPUT
TOTAL CAPACITY 17,54 16,93 16,30 15,65 14,97 19,38
SENSIBLE CAP. 12,70 12,44 12,20 11,87 11,58 14,14
13,02 12,71 12,37 12,00
6,40
7,05
7,78 8,61
SENSIBLE CAP.
POWER INPUT
5,17 5,65
TOTAL CAPACITY 18,81 18,17
SENSIBLE CAP. 12,69 12,42
5,26 5,75
POWER INPUT
6,20 6,79 7,46
5,95
17,50 16,79 16,06 20,83
12,14 11,85 11,56 14,14
6,10
6,30 6,91 7,59
18,72 18,00 17,21 16,33
13,85 13,50 13,19 12,81
6,54
7,20
7,94 8,76
20,12 19,36 18,51
--13,85 13,53 13,18
--6,69
8,10
7,36
---
TOTAL CAPACITY 20,17 19,48 18,76 18,01 17,22 22,38
21,62 20,79 19,88
---
13,37 13,10 12,82 12,53 12,24 14,93
5,37 5,86
6,41 7,03 7,72
6,26
14,63 14,31 13,96
7,54
6,87
8,29
---
SENSIBLE CAP.
POWER INPUT
9,51
6,51
6,51
SENSIBLE CAP.
5,47
5,14
6,70
4,00
9,97
NJCK / NJHK 070
WB
35°C
11,30
8,50
4,20
AIR INLET
CAPACITY AIR INLET TEMPERATURE OUTDOOR UNIT ºC DRY BULB
TEMPERATURE POWER INPUT
INDOOR UNIT
IN kW 25°C 30°C 35°C 40°C 45°C 25°C
30°C 35°C 40°C 45°C
12,98
13,59
15,24
14,71
14,16
16,77
TOTAL
CAPACITY
16,19
15,57 14,88 14,11
21°C DB
15°C
NJCK / NJHK 060
35°C
3,60
9,72
3,00
NJCK / NJHK 048
30°C
3,21
TOTAL CAPACITY 10,45 10,11
SENSIBLE CAP.
7,18
7,03
POWER INPUT
5,07
2,59
8,15
6,18
7,18
2,90
7,57
5,19
2,33
3,73
AIR INLET TEMPERATURE OUTDOOR UNIT ºC DRY BULB
TOTAL CAPACITY 9,06
SENSIBLE CAP.
6,76
2,86
POWER INPUT
TOTAL CAPACITY 9,73
SENSIBLE CAP.
7,26
5,43
3,33
6,75
NJCK / NJHK 036
AIR INLET
CAPACITY
TEMPERATURE POWER INPUT
INDOOR UNIT
IN kW 25°C
TOTAL
CAPACITY
8,43
21°C DB
15°C
NJCK / NJHK 030
AIR INLET TEMPERATURE OUTDOOR UNIT ºC DRY BULB
---
---
CALCULATION OF COOLING CAPACITY
DEPENDING ON AIR FLOW
Data based on the following nominal indoor fan
air flow:
MODELS 018 024 030 036 048 060 070 080
INDOOR
AIR FLOW 800 1100 1250 1650 2050 2400 3400 3750
M3/H
CORRECTION COEFFICIENT TO FIX TO THE
CAPACITY OF DIFFERENT INDOOR AIR FLOW:
% NOMINAL AIR FLOW
70% 80% 90% 100%
Total capacity
0,96 0,97 0,98
1
Sensible capacity
Power input
0,9
0,98
0,93 0,96
0,99 1
1
1
Data based on the following nominal outdoor fan
air flow:
MODELS 018 024 030 036 048 060 070 080
DB - Dry bulb
WB - Wet bulb
Nominal capacities
9
OUTDOOR
AIR FLOW 1800 2800 3100 3200 5500 5500 5200 5200
M3/H
1.- UNIT SELECTION
1.7.- COOLING CAPACITIES
SET WITH CENTRIFUGAL FAN OUTDOOR UNIT
NCCK / NCHK 018
NCCK / NCHK 024
NCCK / NCHK 030
AIR INLET
CAPACITY
TEMPERATURE POWER INPUT
INDOOR UNIT
IN kW 25°C
4,75
TOTAL
CAPACITY
21°C DB
30°C
4,59
35°C
4,42
40°C
4,24
45°C
4,03
25°C
6,17
30°C
35°C
45°C
5,21
30°C
35°C
40°C
45°C
5,73
40°C
5,48
25°C
5,96
7,15
6,90
6,35
3,43
3,35
3,26
3,17
3,07
4,50
4,40
4,28
4,16
4,03
5,20
5,07
6,64
4,94
4,80
6,02
4,64
15°C
24°C
WB
DB
17°C
WB
27°C
DB
19°C
29°C
21°C
32°C
23°C
WB
DB
WB
DB
WB
SENSIBLE CAP.
AIR INLET TEMPERATURE OUTDOOR UNIT ºC DRY BULB
POWER INPUT
1,67
1,81
1,98
2,18
2,41
2,12
2,32
2,54
2,81
3,13
2,72
2,95
3,22
3,53
3,90
TOTAL CAPACITY
5,10
4,93
4,75
4,55
4,34
6,62
6,39
6,15
5,89
5,59
7,68
7,41
7,13
6,82
6,48
3,65
SENSIBLE CAP.
1,68
POWER INPUT
TOTAL CAPACITY 5,47
SENSIBLE CAP.
3,87
3,57
1,83
3,48
2,00
3,39
2,20
3,29
2,43
4,66
4,80
2,14
4,69
2,34
4,58
2,57
4,45
2,84
4,32
3,16
5,54
2,75
5,42
2,98
5,28
3,25
5,14
3,57
4,98
3,94
6,86
6,60
6,32
6,01
4,85
2,60
7,08
4,74
2,87
6,78
4,60
3,19
8,25
5,87
7,97
5,75
3,01
7,33
5,46
3,60
6,96
5,30
8,56
7,70
5,60
3,30
8,23
7,88
7,49
4,59
3,23
---
5,87
2,80
5,74
3,04
5,61
3,32
5,46
3,64
5,30
4,03
9,51
9,19
8,84
8,46
---
---
6,19
6,06
5,92
5,77
---
---
2,83
3,08
3,36
3,69
---
5,29
5,10
4,89
3,70
2,02
5,48
3,60
2,22
5,25
3,50
7,10
5,08
1,69
5,88
3,78
1,84
5,69
2,45
---
2,16
7,62
4,98
2,36
7,36
3,78
1,86
3,70
2,04
3,60
2,24
-----
5,08
2,19
4,97
2,39
4,86
POWER INPUT
3,87
1,71
2,63
4,73
2,91
TOTAL CAPACITY
6,31
6,10
5,88
5,64
---
8,17
7,90
7,60
7,28
SENSIBLE CAP.
4,07
1,72
3,99
1,88
3,90
2,06
3,80
2,26
---
5,35
---
2,21
POWER INPUT
TOTAL CAPACITY
SENSIBLE CAP.
POWER INPUT
NCCK / NCHK 036
AIR INLET
CAPACITY
TEMPERATURE POWER INPUT
INDOOR UNIT
IN kW 25°C
21°C
DB
15°C
WB
24°C
DB
17°C
WB
27°C
DB
19°C
WB
29°C
DB
21°C
WB
32°C
DB
23°C
WB
5,24
2,42
5,12
2,66
5,00
2,95
NCCK / NCHK 048
15°C
WB
24°C
DB
17°C
WB
27°C
DB
19°C
WB
29°C
DB
21°C
WB
32°C
DB
23°C
WB
3,98
NCCK / NCHK 060
30°C
35°C
40°C
45°C
25°C
35°C
40°C
45°C
25°C
30°C
35°C
40°C
45°C
TOTAL CAPACITY 8,40
6,30
SENSIBLE CAP.
8,11
7,45
5,84
7,06
10,29 9,93
9,54
9,11
8,62
12,50
12,08
6,16
7,80
6,00
5,65
7,72
7,55
7,36
7,15
6,91
9,27
9,06
11,63 11,17
8,84
8,61
10,67
8,37
3,15
3,44
3,77
4,14
4,54
3,88
4,21
4,58
5,00
5,50
5,21
5,64
TOTAL CAPACITY 9,02
8,71
8,38
8,01
11,04
10,66
10,24
9,78
9,25
13,01
12,53 12,03
11,49
SENSIBLE CAP.
6,60
3,49
9,36
7,02
6,44
6,27
4,19
8,60
6,69
4,25
7,58
6,08
4,83
13,45
8,26
8,08
7,89
7,67
7,44
4,60
8,14
6,49
3,92
11,84
8,77
4,25
11,43
8,59
5,07
10,49
8,18
5,57
9,91
7,94
9,91
4,89
14,47
10,54
3,96
4,30
5,14
5,65
9,25
6,20
13,50 12,96
10,10 9,87
5,80
6,29
9,01
6,72
12,38
9,62
6,82
12,70 12,27
8,76
8,58
4,01
4,36
11,79
11,25
10,62
4,97
15,57
9,70
5,28
14,00
10,32
5,36
9,48
5,72
4,66
8,72
4,63
11,00
8,40
4,70
15,07
14,53 13,95
13,33
8,38
4,75
8,16
5,21
7,91
5,73
10,54
5,04
10,33
5,44
10,11
5,89
9,62
6,93
15,63 15,01
---
POWER INPUT
6,74
3,19
POWER INPUT
TOTAL CAPACITY 9,69
7,16
SENSIBLE CAP.
3,24
POWER INPUT
TOTAL CAPACITY 10,40
7,15
SENSIBLE CAP.
3,82
9,00
6,85
3,54
3,87
10,05 9,66
7,01
9,23
6,85
6,68
4,31
9,88
6,47
30°C
6,11
6,63
9,87
6,38
3,28
TOTAL CAPACITY 11,15
7,55
SENSIBLE CAP.
3,59
13,62 13,15
12,64
12,05
11,36
16,74
16,20
7,41
7,25
7,07
---
9,24
9,06
8,86
8,64
8,39
11,13
10,92
10,70 10,46
---
POWER INPUT
3,65
3,99
4,37
---
4,05
4,41
4,82
5,29
5,82
5,12
5,53
5,98
---
POWER INPUT
3,34
3,93
10,78 10,36
4,72
---
NCCK / NCHK 070
DB
2,77
8,86
AIR INLET TEMPERATURE OUTDOOR UNIT ºC DRY BULB
NCCK / NCHK 080
AIR INLET
CAPACITY AIR INLET TEMPERATURE OUTDOOR UNIT ºC DRY BULB
TEMPERATURE POWER INPUT
INDOOR UNIT
IN kW 25°C 30°C 35°C 40°C 45°C 25°C 30°C 35°C 40°C
45°C
21°C
6,45
TOTAL CAPACITY 15,09 14,56 14,00 13,42 12,80
SENSIBLE CAP. 11,16 10,89 10,61 10,33 10,03
POWER INPUT
5,52
5,99
6,51
TOTAL CAPACITY 16,18 15,61 15,02
SENSIBLE CAP. 11,90 11,63 11,36
5,60 6,08 6,61
POWER INPUT
TOTAL CAPACITY 17,34 16,73 16,10
SENSIBLE CAP. 12,62 12,35 12,10
5,70 6,18 6,72
POWER INPUT
7,10 7,76
14,40 13,74
11,07 10,77
7,21 7,88
15,44 14,74
11,78 11,48
7,33 8,00
TOTAL CAPACITY 18,59 17,94 17,26 16,55 15,81
SENSIBLE CAP. 12,60 12,32 12,04 11,75 11,46
5,80 6,29 6,84 7,46 8,14
POWER INPUT
TOTAL CAPACITY 19,92 19,22 18,49 17,73 16,94
SENSIBLE CAP. 13,27 13,00 12,72 12,43 12,13
POWER INPUT
Nominal capacities
5,92
6,41
6,97
7,60 8,29
6,48
CALCULATION OF COOLING CAPACITY
DEPENDING ON AIR FLOW
Data based on the following nominal indoor fan
air flow:
16,97 16,40 15,79
12,55 12,27 11,96
15,12
11,64
14,38
11,28
6,47 7,00 7,60
18,25 17,64 16,99
8,29
9,06
16,28
15,49
12,50
8,41
17,53
13,33
8,54
12,14
9,18
16,68
12,96
9,31
18,87
---
14,26 13,97 13,66
6,81 7,36 7,98
13,33
8,68
---
22,70 21,96 21,17
20,29
---
MODELS 018 024 030 036 048 060 070 080
15,05 14,76 14,45 14,12
---
OUTDOOR
AIR FLOW 2200 2150 2525 2500 2890 4425 4425 5390
M3/H
13,42
6,57
19,62
14,25
13,13
7,11
18,98
13,97
7,23
12,83
7,72
18,30
13,65
7,84
6,68
21,11 20,42 19,68
6,95
7,51
8,14
8,84
---
---
CORRECTION COEFFICIENT TO FIX TO THE
CAPACITY OF DIFFERENT OUTDOOR AIR FLOW:
DB - Dry bulb
WB - Wet bulb
MODELS 018 024 030 036 048 060 070 080
INDOOR
AIR FLOW 800 1100 1250 1650 2050 2400 3400 3750
M3/H
CORRECTION COEFFICIENT TO FIX TO THE
CAPACITY OF DIFFERENT INDOOR AIR FLOW:
% NOMINAL AIR FLOW
70% 80% 90% 100%
Total capacity
0,96 0,97 0,98
1
Sensible capacity
Power input
0,93 0,96
0,99 1
1
1
Data based on the following nominal outdoor fan
air flow:
% NOMINAL AIR FLOW
80% 90% 100%
Total capacity
0,97 0,98
1
Sensible capacity
Power input
10
0,9
0,98
0,93 0,96
0,99 1
1
1
1.- UNIT SELECTION
1.7.- HEATING CAPACITIES
SET WITH AXIAL FAN OUTDOOR UNIT
NJHK 018
AIR INLET
TEMPERATURE
INDOOR UNIT
15°C DB
18°C DB
20°C DB
kW
-10°C -5°C
0°C
6°C 10°C 14°C 18°C -10°C -5°C 0°C 6°C 10°C 14°C 18°C
5,34 6,06 6,89 8,06
8,95 9,94 11,02
Power input
1,39 1,46 1,54 1,67 1,77 1,90 2,05
1,82 1,90 2,00 2,15 2,27 2,42 2,61
2,24 2,34 2,47 2,65
2,81 3,00 3,23
Total capacity
3,39 3,86 4,39 5,13 5,70 6,33 7,02
4,30 4,89 5,56 6,50 7,22 8,03 8,92
5,35 6,07 6,89 8,03
8,91 9,88 10,94
Power input
1,47 1,55 1,64 1,77 1,88 2,02 2,18
1,93 2,02 2,12 2,28 2,41 2,58 2,77
2,36 2,47 2,61 2,81 2,98
Total capacity
3,40 3,86 4,39 5,15 5,69 6,31 6,99
4,31 4,89 5,56 6,50 7,21 8,01 8,88
5,36 6,07 6,89 8,00
8,89 9,85 10,89
Power input
1,53 1,61 1,71 1,85 1,97 2,11 2,28
3,45 3,90 4,41 5,12
---
1,78 1,88 1,99 2,16
---
---
NJHK 036
kW
-10°C -5°C
Total capacity 6,08
Power input 2,53
Total capacity 6,08
Power input 2,68
Total capacity 6,09
Power input 2,79
Total capacity 6,12
Power input 3,02
Total capacity 6,16
Power input 3,21
kW
3,10 3,32 3,57
8,85 9,78
---
---
2,17 2,27 2,40 2,59 2,74 2,93 3,15
2,65 2,78 2,94 3,18
3,37 3,61
---
---
4,38 4,94 5,59 6,49 7,18 7,94
---
5,42 6,12 6,91 8,00
8,83
---
---
---
2,32 2,43 2,56 2,76 2,93 3,13
---
2,82 2,96 3,13 3,39
3,60
---
---
NJHK 048
AIR INLET TEMPERATURE OUTDOOR UNIT ºC WET BULB
0°C 6°C 10°C 14°C 18°C -10°C -5°C 0°C
6°C
10°C 14°C 18°C -10°C -5°C
2,65 2,80 3,02 3,21 3,43 3,68
18°C DB
20°C DB
24°C DB
2,81 2,97 3,21 3,40 3,63 3,89
3,32 3,48 3,65
3,90
4,09 4,31 4,57
3,68 3,89
3,49 3,65 3,84
4,09
4,30 4,54 4,82
3,87 4,09
2,92 3,09 3,35 3,54 3,77 4,04
10°C 14°C 18°C
4,14
4,51
4,82 5,18 5,60
4,36
4,75
5,07 5,45 5,88
3,61 3,77 3,96
4,20
4,45 4,70 4,99
4,00 4,24
4,51
4,90
5,25 5,64 6,08
6,94 7,91 9,27 10,30 11,43 12,63 7,91 8,99 10,20 11,86 13,10 14,47 15,94 8,80 10,08 11,55 13,59 15,15 16,87
---
3,17 3,35 3,61 3,83 4,07 4,35
5,62 6,03
---
8,85 10,11 11,55 13,56 15,09 16,76
---
3,65 3,92
---
3,85 4,03 4,24
4,53
4,77 5,04 5,36
6,97 7,92 9,26 10,26 11,35
---
7,92 8,99 10,18 11,81 13,03 14,35 ---
3,37 3,56 3,84 4,06 4,31
---
---
4,05 4,24 4,46
4,78
5,03 5,32
4,28 4,53
NJHK 070
NJHK 080
AIR INLET TEMPERATURE OUTDOOR UNIT ºC WET BULB
-10°C -5°C
0°C
6°C 10°C 14°C 18°C -10°C -5°C 0°C
Power input 4,49 4,72 5,00
6°C 10°C 14°C 18°C
5,41 5,75 6,14 6,60 4,96 5,24 5,58 6,07 6,49
Power input 4,72 4,98 5,27
5,71 6,05 6,46 6,94 5,25 5,55 5,91 6,43 6,87
6,98 7,58
7,38 8,00
Total capacity 10,90 12,47 14,24 16,70 18,56 20,62 22,89 11,56 13,36 15,38 18,20 20,37 22,78 25,44
Power input 4,89 5,15 5,46
5,90 6,27 6,69 7,18 5,46 5,78 6,15 6,70 7,14
7,67 8,29
Total capacity 10,85 12,42 14,17 16,60 18,43 20,45 22,66 11,59 13,37 15,37 18,15 20,26 22,59 25,15
6,35 6,73 7,18 7,70 5,93 6,27 6,67 7,25 7,72
Total capacity 10,82 12,39 14,14 16,54 18,35 20,33
Power input 5,52 5,83 6,19
6,70 7,11 7,58
8,27 8,91
---
11,63 13,40 15,39 18,11 20,18 22,45
---
---
6,32 6,68 7,10 7,70 8,19
---
8,76
CALCULATION OF HEATING CAPACITY DEPENDING ON AIR FLOW
Data based on the following nominal indoor fan
air flow:
Data based on the following nominal outdoor fan
air flow:
MODELS 018 024 030 036 048 060 070 080
MODELS 018 024 030 036 048 060 070 080
INDOOR
AIR FLOW 800 1100 1250 1650 2050 2400 3400 3750
M3/H
CORRECTION COEFFICIENT TO FIX TO THE
CAPACITY OF DIFFERENT INDOOR AIR FLOW:
% NOMINAL AIR FLOW
70% 80% 90% 100%
Total capacity
0,96 0,97 0,98
1
OUTDOOR
AIR FLOW 1800 2800 3100 3200 5500 5500 5200 5200
M3/H
0,9
0,98
0,93 0,96
0,99 1
1
1
11
4,83
4,24
5,27
4,70
5,07 5,49
Nominal capacities
Total capacity 10,93 12,50 14,27 16,75 18,63 20,72 23,01 11,56 13,36 15,39 18,24 20,43 22,87 25,57
Sensible capacity
Power input
6°C
6,92 7,90 9,30 10,35 11,52 12,78 7,91 9,00 10,23 11,90 13,21 14,62 16,15 8,77 10,07 11,56 13,60 15,24 17,00 18,93
Power input 5,24 5,53 5,87
27°C DB
0°C
6,92 7,90 9,30 10,38 11,57 12,85 7,91 9,01 10,25 11,96 13,26 14,69 16,26 8,77 10,07 11,57 13,67 15,28 17,07 19,02
Total capacity 10,98 12,54 14,33 16,83 18,74 20,86 23,20 11,57 13,37 15,42 18,30 20,52 23,00 25,77
15°C DB
NJHK 060
6,91 7,90 9,32 10,42 11,63 12,95 7,91 9,03 10,28 12,02 13,34 14,80 16,40 8,78 10,08 11,59 13,72 15,35 17,17 19,17
27°C DB
AIR INLET
TEMPERATURE
INDOOR UNIT
2,45 2,57 2,71 2,90
5,39 6,09 6,89 8,01
1,67 1,75 1,86 2,02 2,15 2,30
Power input
AIR INLET
TEMPERATURE
INDOOR UNIT
2,00 2,10 2,21 2,38 2,52 2,69 2,89
---
Total capacity
3,18 3,43
4,35 4,92 5,57 6,49 7,19 7,96 8,81
3,42 3,88 4,40 5,12 5,67 6,27
---
27°C DB
24°C DB
6°C 10°C 14°C 18°C
4,29 4,88 5,56 6,51 7,25 8,07 8,98
Power input
20°C DB
0°C
3,39 3,86 4,39 5,15 5,72 6,37 7,07
24°C DB
18°C DB
-10°C -5°C
NJHK 030
Total capacity
Total capacity
15°C DB
NJHK 024
AIR INLET TEMPERATURE OUTDOOR UNIT ºC WET BULB
DB - Dry bulb
WB - Wet bulb
1.- UNIT SELECTION
1.7.- HEATING CAPACITIES
SET WITH CENTRIFUGAL FAN OUTDOOR UNIT
NCHK 018
AIR INLET
TEMPERATURE
INDOOR UNIT
15°C DB
18°C DB
20°C DB
kW
NCHK 024
AIR INLET TEMPERATURE OUTDOOR UNIT ºC WET BULB
-10°C -5°C 0°C 6°C 10°C 14°C 18°C -10°C -5°C 0°C
NCHK 030
6°C 10°C 14°C 18°C -10°C -5°C
0°C 6°C 10°C 14°C 18°C
6,89 7,66 8,51 9,45
5,59 6,35
7,23 8,45 9,38 10,40 11,52
2,32 2,45 2,60 2,79
2,61 2,72
2,85 3,04 3,20 3,39
6,86 7,62 8,46 9,37
5,59 6,35
7,21 8,42 9,33 10,33 11,43
2,08 2,17 2,28
2,45 2,59 2,75 2,95
2,74 2,85
2,99 3,19 3,37 3,57
Total capacity 3,57 4,06 4,62 5,40 5,98 6,62 7,32
4,53 5,15 5,86
6,85 7,60 8,42 9,32
5,60 6,35
7,21 8,40 9,30 10,29 11,37
Power input 1,75 1,82 1,92 2,06 2,18 2,33 2,50
Total capacity 3,56 4,06 4,63 5,43 6,03 6,70 7,42
4,52 5,16 5,88
Power input 1,61 1,68 1,76 1,89 1,99 2,12 2,27
1,97 2,06 2,16
Total capacity 3,57 4,06 4,62 5,41 6,00 6,65 7,36
4,53 5,15 5,87
Power input 1,69 1,76 1,85 1,99 2,10 2,24 2,40
3,62
3,82
2,15 2,25 2,36
2,54 2,69 2,86 3,07
2,83 2,94
3,09 3,23 3,49 3,70
3,96
Total capacity 3,59 4,07 4,62 5,37 5,94 6,57
---
4,55 5,17 5,86
6,83 7,56 8,36 9,22
5,62 6,36
7,20 8,37 9,25 10,21
---
Power input 1,87 1,96 2,07 2,23 2,36 2,52
---
2,31 2,42 2,55
2,75 2,91 3,10 3,32
3,02 3,15
3,31 3,55 3,75 3,99
---
4,58 5,18 5,87
6,82 7,53 8,31
---
5,65 6,38
7,21 8,35 9,21
---
---
2,92 3,09 3,30
---
3,51 3,77 3,98
---
---
24°C DB
Total capacity 3,60 4,08 4,62 5,37
---
---
---
Power input 1,98 2,08 2,19 2,37
---
---
---
27°C DB
NCHK 036
AIR INLET
TEMPERATURE
INDOOR UNIT
kW
-10°C -5°C 0°C
2,45 2,57 2,71
3,19 3,33
NCHK 048
AIR INLET TEMPERATURE OUTDOOR UNIT ºC WET BULB
6°C 10°C 14°C 18°C -10°C -5°C 0°C
6°C
NCHK 060
10°C 14°C 18°C -10°C -5°C 0°C
6°C
10°C 14°C 18°C
Total capacity 6,05 6,87 7,85 9,26 10,35 11,56 12,88 7,57 8,63 9,82 11,48 12,75 14,17 15,73 9,26 10,65 12,26 14,50 16,22 18,11 20,17
15°C DB
18°C DB
20°C DB
24°C DB
Power input 2,75 2,86 2,99 3,20 3,36 3,56 3,79 3,38 3,52 3,68 3,91
4,41 4,62 4,88
Power input 2,89 3,01 3,15 3,36 3,54 3,75 3,99 3,54 3,69 3,86 4,09
4,28 4,49 4,75
4,60 4,82 5,09
Power input 2,99 3,11 3,26 3,50 3,67 3,88 4,13 3,65 3,81 3,98 4,20
4,42 4,64 4,91
4,73 4,96 5,24
4,72 4,97 5,26
5,00 5,25 5,55
24°C DB
5,81 6,19
6,62
5,65
5,98 6,37
6,00
6,81
---
6,35 6,75
---
---
7,63 8,64 9,78 11,34 12,53 13,83
---
9,30 10,63 12,16 14,27 15,86 17,59
---
Power input 3,38 3,52 3,69 3,95 4,15 4,38
---
4,08 4,25 4,45 4,74
---
5,21 5,48 5,80
---
kW
4,97 5,24
NCHK 070
NCHK 080
AIR INLET TEMPERATURE OUTDOOR UNIT ºC WET BULB
-10°C -5°C 0°C
6°C 10°C 14°C 18°C -10°C -5°C 0°C
Power input 4,74 4,96 5,21 5,57 5,87
Total capacity 10,78 12,31 14,05 16,49 18,36 20,43 22,72 12,07 13,96 16,09 19,07 21,34 23,88 26,67
Power input 4,96 5,19 5,45 5,84 6,15
6,52 6,95
Power input 5,11 5,35 5,63 6,03 6,35
5,98 6,26 6,59 7,07 7,47 7,95 8,51
6,73 7,17 6,17 6,46 6,80 7,30 7,71 8,20 8,77
Total capacity 10,71 12,25 13,98 16,37 18,19 20,20 22,40 12,08 13,95 16,05 18,94 21,13 23,55 26,18
Power input 5,43 5,70 6,00 6,43 6,78
Power input 5,69 5,98 6,30 6,76 7,12
7,18 7,65 6,59 6,90 7,27 7,80 8,23 8,73 9,32
7,55
---
12,12 13,97 16,04 18,88 21,02 23,37
---
---
6,93 7,27 7,65 8,21 8,65 9,17
---
CALCULATION OF HEATING CAPACITY DEPENDING ON AIR FLOW
Data based on the following nominal indoor fan
air flow:
Data based on the following nominal outdoor fan
air flow:
MODELS 018 024 030 036 048 060 070 080
MODELS 018 024 030 036 048 060 070 080
INDOOR
AIR FLOW 800 1100 1250 1650 2050 2400 3400 3750
M3/H
OUTDOOR
AIR FLOW 2200 2150 2525 2500 2890 4425 4425 5390
M3/H
CORRECTION COEFFICIENT TO FIX TO THE
CAPACITY OF DIFFERENT INDOOR AIR FLOW:
% NOMINAL AIR FLOW
70% 80% 90% 100%
Total capacity
0,96 0,97 0,98
1
Sensible capacity
Power input
0,9
0,98
0,93 0,96
0,99 1
1
1
CORRECTION COEFFICIENT TO FIX TO THE
CAPACITY OF DIFFERENT OUTDOOR AIR FLOW:
% NOMINAL AIR FLOW
80% 90% 100%
Total capacity
0,97 0,98
1
Sensible capacity
Power input
12
0,93 0,96
0,99 1
6,27
6,63 7,05
Nominal capacities
6°C 10°C 14°C 18°C
6,22 6,63 5,72 5,98 6,29 6,75 7,13 7,59 8,14
Total capacity 10,69 12,22 13,95 16,32 18,11 20,09
27°C DB
6,34
Total capacity 6,14 6,94 7,88 9,21 10,22 11,32
Total capacity 10,76 12,29 14,02 16,45 18,30 20,35 22,61 12,07 13,95 16,07 19,00 21,27 23,77 26,51
20°C DB
5,49
Total capacity 6,11 6,91 7,87 9,22 10,25 11,38 12,59 7,61 8,63 9,78 11,37 12,58 13,91 15,37 9,26 10,62 12,17 14,32 15,95 17,73
Total capacity 10,83 12,35 14,10 16,56 18,45 20,56 22,89 12,09 13,98 16,13 19,14 21,45 24,04 26,89
18°C DB
5,56 5,92
Total capacity 6,07 6,89 7,85 9,20 10,29 11,47 12,73 7,59 8,62 9,79 11,40 12,65 14,03 15,54 9,24 10,62 12,20 14,40 16,06 17,90 19,88
AIR INLET
TEMPERATURE
INDOOR UNIT
15°C DB
5,26
Total capacity 6,06 6,88 7,85 9,24 10,32 11,50 12,80 7,58 8,62 9,80 11,44 12,69 14,08 15,62 9,24 10,63 12,22 14,44 16,12 17,98 20,00
Power input 3,20 3,34 3,50 3,74 3,94 4,16 4,41 3,89 4,05 4,24 4,50
27°C DB
4,08 4,28 4,52
1
1
DB - Dry bulb
WB - Wet bulb
1.- UNIT SELECTION
1.8.- UNIT DIMENSIONS (mm)
OUTDOOR UNIT WITH CENTRIFUGAL FAN
Electrical box
975
36,5
24
45
,5
34
5
41
0
Unit anchor
support
530
78
Refrigerant
connection
valves
470
133
25
400
470
25
490
370 41,5
Refrigerant
connection
valves
410
78
Electrical box
1050
750
400
625
370 41,5
MODELS
KCCK- 030-036
KCHK- 030-036
36,5
MODELS
KCCK- 018-024
KCHK- 018-024
35
0
47
0
Unit anchor
support
660
35
,5
Refrigerant connection valves
1250
32
820
27
495
25
184
Drainage
outside thread
3/4'' Male
1,6
71
452
Distance
between
holes:13
00
349
123
Refrigerant connection valves
1300
32
830
25
Electrical box
Power supply connection
Drainage
outside thread
3/4'' Male
1,6
72
Detail drawing of
unit anchor support
355
500
27
6
333
Unit anchor
support
422
Distanc
e betwe
en hole
s:1350
324
20 x12
Oval hole
123
50
25
40
249
Electrical box
MODELS
KCCK/ KCHK- 080
Refrigerant connection valves
36,5
900
25
25
Drainage
outside thread
3/4'' Male
355
497
47
1450
595
MODELS
KCCK- 060-070
KCHK- 060-070
Power supply connection
333
6
303
425
Unit anchor
support
Electrical box
595
MODELS
KCCK/ KCHK- 048
Power supply connection
262
79
462
Distanc
e betwe
en hole
s:1500
13
324
92
1
Unit anchor
support
60
80
1.- UNIT SELECTION
1.8.- UNIT DIMENSIONS (mm)
OUTDOOR UNIT WITH AXIAL FAN
KJCK
KJHK
C
B
A
B
C
A
KJCK
KJHK
018
KJCK
KJHK
024
KJCK
KJHK
030
773
629
333
773
629
333
973
781
333
KJCK
KJHK
036
973
KJCK
KJHK
048
973
KJCK
KJHK
060
931
333
1239
1239
333
KJCK KJCK
KJHK KJHK
070
080
998
1230
386
973
333
INDOOR UNIT LNXO 018-024-030-036-048-060
G
A
J
D
L
A
H
C E
F
I
C
B
K
H
I
Ø INT. 20mm /
Ø EXT. 25 mm
INDOOR UNIT LNXO 070-080
B
C
C
I
E
F
J
D
K
A
G
A
L
H
Ø INT. 20mm /
Ø EXT. 25 mm
LNXO 018-024
LNXO 030-036
LNXO 048-060
LNXO 070-080
mm.
mm.
mm.
mm.
A
B
C
D
E
F
G
H
I
J
K
L
1000
1000
1195
1300
535
700
750
850
235
287
315
415
880
880
1050
1060
153
203
228
275
40
40
40
121
60
60
72
120
885
885
1055
80
175
225
255
356
76
76
76
34
27
28
26
1240
58
58
70
30
14
998
1230
386
1.- UNIT SELECTION
1.9.- UNIT DESCRIPTION
OUTDOOR UNIT KCCK/ KCHK 018-024-030-036
11
7
6
5
1
FAN
2
EXCHANGER
3
COMPRESSOR
4
ELECTRICAL BOX
4
3
10
4A Mod. 048-060-070
4B Mod. 080
5
2
14
ACCESS PANEL TO COMPRESSOR
AND PIPE COMPONENTS
13
1
12
6
CONNECTION PIPE
7
ACCESS PANEL TO ELECTRICAL BOX
8
MAIN SWITCH (OPTIONAL, depending on model)
8B Mod. 080
8A Mod. 048-060-070
14
9
13
9
OUTDOOR UNIT KCCK/ KCHK 048-060-070-080
POWER SUPPLY ENTRY 9A Mod. 048-060-070
9B Mod. 080
6
10 DRAINAGE Models 018 to 036: Ø 16 EXTERIOR
Models 048 to 080: OUTSIDE THREAD 3/4" MALE
10
11 INTAKE PRESSURE (Mod. 030-036)
1
13
14
12 CONDENSATE PUMP
13 DISCHARGE AIR
2
5
4B
STANDARD POSITION
8A
OPTIONAL POSITION
4A
3
7
14 INLET AIR
STANDARD POSITION
8B
OPTIONAL POSITION
5
9B
13
14
9A
INDOOR UNIT LNXO 018-024-030-036-048-060
AIR
INDOOR UNIT LNXO 070-080
8
1
2
AIR
AIR
11
8
2
AIR
7
7
6
6
5
8
11
9
9
10
10
5
12
12
13B
6
8
AIR
2
1
6
AIR
7
8
AIR
2
1
AIR
7
13
13A
3
3
5
11
4
1
FAN-MOTOR
6
DRIP TRAY
2
EXCHANGER
7
DISCHARGE AIR
ELECTRICAL BOX
8
INLET AIR
STANDARD POSITION
3
4
5
CONNECTION PIPE
DRAIN WITH ADAPTOR Ø20 mm INSIDE
Ø25 mm OUTSIDE
OPTIONAL POSITION
(Mod. 018 to 060)
15
4
5
9
ACCESS PANEL TO FAN-MOTOR
10
AIR FILTER
11
ELECTRICAL HEATERS OR HOT WATER COILS (OPTIONS)
12
OUTDOOR AIR INTAKE
13
CONDENSATE PUMP (OPTIONAL)
13A Mod. 018-024
13B Mod. 030-036-048-060
1.- UNIT SELECTION
1.10.- OPERATING LIMITS
OPERATING LIMITS FOR (COOLING ONLY) UNITS
MAXIMUM TEMPERATURES
COOLING CYCLE
OPERATION
INDOOR
TEMPERATURE
OUTDOOR
TEMPERATURE
MINIMUM TEMPERATURES
32º C DB / 23º C WB
21º C DB / 15º C WB
+ 19º C STANDARD UNIT
+15º C WITH MINIMUM INDOOR
TEMPERATURES 24º C DB/ 18º C WB
0º C WITH OPTIONAL ON/OFF CPC
-10º C WITH OPTIONAL PROPORT. CPC
DEPENDING ON MODEL
(see Tables for
cooling capacities)
OPERATING LIMITS FOR (HEATING PUMP) UNITS
MAXIMUM TEMPERATURES
COOLING CYCLE
OPERATION
INDOOR
TEMPERATURE
OUTDOOR
TEMPERATURE
HEATING CYCLE
OPERATION
32º C DB / 23º C WB
21º C DB / 15º C WB
+ 19º C STANDARD UNIT
+15º C WITH MINIMUM INDOOR
TEMPERATURES 24º C DB/ 18º C WB
0º C WITH OPTIONAL ON/OFF CPC
-10º C WITH OPTIONAL PROPORT. CPC
DEPENDING ON MODEL
(see Tables for
cooling capacities)
INDOOR
TEMPERATURE
OUTDOOR
TEMPERATURE
MINIMUM TEMPERATURES
27º C DB
15º C DB
DEPENDING ON MODEL
(See Tables for heating capacities)
-10º C DB / -11º C WB
DB.- Dry Bulb Temperature
WB.- Wet Bulb Temperature
1.11.- STANDARD/ OPTIONAL INLET AIR PANEL OF INDOOR UNIT LNXO 018-024-030-036-048-060
(to be made by the installer)
STANDARD POSITION
E
OPTIONAL POSITION
E
A
Service panel
Air filter
B D
A
C
C
F
D
D B
C
F
C
Profiles for
fixing air filter
Service panel
LNXO 018-024 mm.
LNXO 030-036 mm.
LNXO 048-060 mm.
A
B
1000
1000
1195
235
287
315
D
Air filter
C
16
D
885 175
885 225
1055 255
E
F
58
58
70
27
28
26
1.- UNIT SELECTION
1.11.- STANDARD/ OPTIONAL ENTRANCE OF OUTDOOR UNIT KCCK / KCHK (to be made by the installer)
MODELS 018-024
133
78
400
490
STANDARD
EXTRACTOR
ENTRANCE
400
490
400
490
350
B1
67,5
OPTIONAL
EXTRACTOR
ENTRANCE
53,5
53,5
STANDARD CONFIGURATION
470
35,5
B0
118,5
58,5
58,5
A1
B1
OPTIONAL
EXTRACTOR
ENTRANCE
45,5
B0
STANDARD
EXTRACTOR
ENTRANCE
370
470
24
470
OPTIONAL
BLOWER
ENTRANCE
350
345
370
A0
370
410
345
53,5
78
A1
STANDARD
BLOWER
ENTRANCE
470
COMPRESSOR
IL
OPTIONAL
BLOWER
ENTRANCE
58,5
410
470
STANDARD
BLOWER
ENTRANCE
58,5
C
O
370
470
FAN
A0
A1
400
A0
53,5
B0
MODELS 030-036
490
B1
OPTIONAL CONFIGURATION
ELECTRIC BOX
MODELS 048
MODELS 060-070
B1
IL
O
123
A1
E.B.
OPTIONAL
BLOWER
ENTRANCE
58
595
324
355
355
324
213
OPTIONAL
BLOWER
ENTRANCE
595
A1
E.B.
495
123
349
428
STANDARD
BLOWER
ENTRANCE
38
C
A0
349
303
COMPRESSOR
368
170
B0
495
303
A0
STANDARD
BLOWER
ENTRANCE
FAN
MODELS 080
IL
O
324
A1
92
OPTIONAL
BLOWER
ENTRANCE
193
C
324
595
595
B0
391,5
STANDARD
BLOWER
ENTRANCE
355
355
A0
193
B1
FAN
595
497
B1
OPTIONAL
EXTRACTOR
ENTRANCE
61
STANDARD CONFIGURATION
STANDARD
EXTRACTOR
ENTRANCE
497
595
B0
A1
462
462
61
262
A0
OPTIONAL CONFIGURATION
ELECTRIC BOX
17
384
595
500
B1
OPTIONAL
EXTRACTOR
ENTRANCE
63
STANDARD
EXTRACTOR
ENTRANCE
500
595
OPTIONAL
EXTRACTOR
ENTRANCE
OPTIONAL CONFIGURATION
ELECTRIC BOX
COMPRESSOR
422
422
B0
43
43
STANDARD CONFIGURATION
249
B1
63
STANDARD
EXTRACTOR
ENTRANCE
495
425
B0
A1
269
452
452
425
495
184
A0
304
1.- UNIT SELECTION
1.12.- OUTDOOR UNIT OPTIONS
ON/OFF CONDENSATION PRESSURE CONTROL (outdoor unit)
The condensation pressure control consists of one pressure switch, which starts and stops the outdoor fan,
regulating the condensation temperature; thus the unit will be able to operate in the cooling cycle when the outdoor
temperature is below 19ºC (until 0ºC).
It includes crankcase heater for cooling only units. The purpose of the heater is to keep the oil in the compressor
at the correct temperature while the compressor is stopped, so that it can be properly lubricated when starts again.
When the unit is operating at low outdoor temperatures (below 19ºC), it is advisable to fit a crankcase heater.
For long distances applications, proportional winter control must be installed.
PROPORTIONAL CONDENSING PRESSURE CONTROL (outdoor unit. Not available for MODELS 060-070080 with centrifugal fan)
It is an element that regulates outdoor fan speed, in order to control condensation temperature. Thus, the unit will
be able to operate in the cooling cycles when the outdoor temperature is below 19ºC. This kit includes crankcase
heater for cooling only units.
MAIN SWITCH (only MODELS 048-060-070-080 with centrifugal fan)
The main switch is located on the access panel to the electrical box, in such a way that the unit is disconnected
when the panel is opened, for the models KCCK / KCHK.
COMPRESSOR ACOUSTIC JACKET (outdoor unit)
Each compressor is fitted with a compressor acoustic jacket this provides attenuation of the compressor noise
that radiates from the unit when in operation.
1.12.- INDOOR UNIT OPTIONS
KIT CONDENSATE PUMP
As an option, a condensate pump is available to ensure condensate removal; also the kit is supplied with a float
switch which makes the unit stops in case the pump is broken or the drain is choking (see unit description of page
15, for condensate pump position).
To ensure that the condensate flows, the drain tube must be installed with a fall of 2% without obstructions, or
without rising sections. To avoid any unpleasant odours from the drainage system, a trap must be fitted with a trap
depth of no less than 50mm. The condensate pump has a maximum lift of 200mm. The rising tube must always
be vertical.
On completion the drain line must be insulated. The condensate pump is supplied with a cover panel which can
be removed from the unit in case could be necessary.
KIT AIR INLET PLENUM AND KIT DISCHARGE PLENUM
DISCHARGE
PLENUM
B
DISCHARGE PLENUM
C
mm.
A
B
C
D
E
LNXO
018-024
890
102
235
152
293
LNXO
030-036
LNXO
048-060
890
102
242
152
293
1060 102
267
137
262
LNXO
070-080
1248 300
320
114
255
C
A
C
D
A
E
mm.
F
G
H
LNXO
018-024
892
100
237
151
295
LNXO
030-036
LNXO
048-060
892
100
260
151
295
1062 100
288
135
264
LNXO
070-080
1246 88,5
350
113
255
D
E
D
E
J
J
J
I
E
E
E
D
I
AIR INLET PLENUM
A
E
E
E
LNXO 018-024
030-036
I
B
B
LNXO
048-060
D
D
LNXO
070-080
G
F
I
J
J
J
H
I
G
I
F
H
J
J
J
J
I
G
F
H
LNXO 018-024
030-036
LNXO
048-060
Ø DUCT FLANGE
EXTERNAL
DIAMETER 195 mm
AIR INLET
PLENUM
18
LNXO
070-080
1.- UNIT SELECTION
1.12.- INDOOR UNIT OPTIONS
ELECTRICAL HEATER AND HOT WATER COIL INSTALLATION INSTRUCTIONS
NOTE: Electrical heater and water coil are supplied mounted on the unit. Also, it is possible
to install them on site, always before the unit is installed on the ceiling.
BEFORE ATTEMPTING TO PERFORM ANY SERVICE OR MAINTENANCE,
TURN OFF THE ELECTRICAL POWER, AND CHECK THAT THE FAN HAS
STOPPED
LNXO 018-024-030-036-048-060
• The electrical heater or hot water coil should be installed
into the impulsion fan of the unit.
• Fit them on the unit using the screws supplied as the
drawing shows.
• Remove on side cover (disposable), then slide the electrical
heater or hot water coil to the backstop through the provided
rail.
• Fit them on the unit side using two screws.
Make the electrical connection between the electrical heater
and the electrical box of the unit following the wiring diagram
supplied, or make the water connections if a hot water coil
is being installed.
Finally, place the end cover.
LNXO 070-080
ELECTRICAL HEATER TECHNICAL DATA
SET/
INDOOR UNIT
LNXO
018
LNXO
024
LNXO
030
LNXO
036
Only Cooling / Heat Pump C/H.Pump C/H.Pump C/H.Pump
230V 1Ph-50Hz
Power (kW)
5 / 2,5
5 / 2,5
400V 3Ph-50Hz
Power (kW)
---
---
LNXO
060
LNXO
070
LNXO
080
C/H.Pump C/H.Pump C/H.Pump C/H.Pump C/H.Pump
7,5 / 3,75 7,5 / 3,75
7,5 / ---
LNXO
048
7,5 / 3,75
---
---
---
---
12 / 6
12 / 6
15 / 7,5
15 / 7,5
HOT WATER COIL (2 ROWS) TECHNICAL DATA
WATER
FLOW
WATER COIL
PRESSURE
DROP
AIR
FLOW
AIR
PRESSURE
DROP (*)
70 ºC
L/h
Kpa
m3/h
Pa
7350
452
13
800
13
10990
675
36
1250
17
16660
1023
33
2050
24
29960
1840
13
3400
16
DIFFERENCE IN TEMPERATURES
BETWEEN HOT WATER INTAKE AND
THE AIR THAT ENTERS THE COIL
50 ºC
60 ºC
CAPACITY IN W
LNXO 018-024
5250
6300
CAPACITY IN W
LNXO 030-036
7850
9420
CAPACITY IN W
LNXO 048-060
11900
14280
CAPACITY IN W
LNXO 070-080
21400
25680
(*) NOMINAL AIR FLOW VOLUME
For different air flow volumes from the table above, apply the following coefficients:
Relation between
air flow from the table
x 0,75
x 0,85
x1
x 1,15
x 1,35
Capacity
Water flow
x 0,84
x 0,92
x1
x 1,08
x 1,20
x 0,84
x 0,92
x1
x 1,08
x 1,20
19
Water
Air pressure
pressure drop
drop
x 0,73
x 0,63
x 0,83
x 0,73
x1
x1
x 1,13
x 1,30
x 1,42
x 1,70
2.- INSTALLATION
2.1.- POINTS TO KEEP IN MIND
DANGER AND WARNING SIGNS
Abrasive
surfaces
Low
temperatures
High
temperatures
Risk of injury with
moving objects
WARNING
Electric shock hazard can cause injury
or death. Before attempting to perform
any service or maintenance on the
unit, turn OFF the electrical power,
and check that the fan has stopped.
Electrical
voltage
Risk of injury with
rotating objects
The air filter cleaning operations do not
require technical service; however when
an electrical or mechanical operation
is required call an Engineer.
FILTER CLEANING
Check the air filter and make
sure it is not blocked with dust
or dirt.
If the filter is dirty, wash it in a bowl with neutral
soap and water, drying it in the shade before
inserting it in the unit.
Standard Guidelines to Lennox equipment
All technical data contained in these operating instructions including the diagrams and technical description
remains the property of Lennox and may not be used (except for the purpose of familiarizing the user with
the equipment), reproduced, photocopied, transferred or transmitted to third parties without prior written
authorization from Lennox .
The data published in the operating instructions is based on the latest information available. We reserve the
right to make modifications without notice.
We reserve the right to modify our products without notice without obligation to modify previously supplied
goods.
These operating instructions contain useful and important information for the smooth operation and maintenance
of your equipment.
The instructions also include guidelines on how to avoid accidents and serious damage before commissioning
the equipment and during its operation and how to ensure smooth and fault-free operation. Read the operating
instructions carefully before starting the equipment, familiarize yourself with the equipment and handling of
the installation and carefully follow the instructions. It is very important to be properly trained in handling the
equipment. These operating instructions must be kept in a safe place near the equipment.
Like most equipment, the unit requires regular maintenance. This section concerns the maintenance personnel
and management.
If you have any queries or would like to receive further information on any aspect relating to your equipment,
do not hesitate to contact us.
20
2.- INSTALLATION
2.2.- INSTALLATION GUIDELINES
All INSTALLATION, SERVICE and MAINTENANCE operations
must be carried out by QUALIFIED PERSONNEL.
The unit must be transported in a HORIZONTAL POSITION; any other position may cause serious damage to the
machine. When the unit is received, it should be checked to assure that there are no bumps or other damage,
following the instructions on the packaging. If there is damage, the unit may be rejected by notifying the LENNOX
Distribution Department and reporting why the machine is unacceptable on the transport agent’s delivery notice.
Any later complaint or claim made to the LENNOX Distribution Department, for this type of anomaly, cannot be
considered under the Guarantee.
Sufficient space must be allowed to facilitate placement of the unit.
When positioning the unit, be sure that the Rating Plate will always be visible since this
data will be necessary to assure proper maintenance.
The KCCK-KCHK indoor and outdoor unit are designed to be installed with ducts, calculated by qualified technical
staff. The joints to be used between ducts and the openings to the unit should be Elastic Joints. Avoid the use of
BYPASS joints between the extraction air and input air in both the outdoor and indoor sections. The structure where
the unit is placed must be able to support the weight of the unit during operation.
2.3.- UNIT RECEPTION
The KCCK-KCHK 048-060-070-080 units have Metal Bedplate Profiles and Wooden Blocks for transportation.
These wooden blocks must be removed when positioning the unit in its final position.
PLACEMENT OF THE BEDPLATE AND TRANSPORTATION BLOCKS
To remove the transportation blocks:
remove the screw and slide the block
along the metal profile.
How to hoist the unit
If unloading and placement require the use of a
crane, then secure the suspension cables as
shown in the figure.
Use
separators
Bedplate
profile
Securing
screw
Wood
block
2.4.- INSTALLATION CLEARANCES
Clearance around the unit for service and maintenance.
Min. 300
Min
. 15
0
KJCK
KJHK
1 mete
1
r
1
er
et
m
1 mete
er
et
m
r
21
Min. 300
2.- INSTALLATION
2.5.- OPTIONAL OPERATIONS PRIOR TO UNIT INSTALLATION: CHANGING THE POSITION OF BLOWERS
AND AIR INTAKE FOR OUTDOOR UNITS KCCK-KCHK 048-060-070-080
STANDARD AIR INTAKE AND BLOWERS
OPTIONAL AIR INTAKE AND BLOWERS
Service Panel
Intake Opening
B1
Intake
Opening
B0
Service
Panel
Extension
Collar
A0
Motor
Fan-motor assembly
Blower Panel
with Opening
Service
Panel
Motor
Fan-motor assembly
A1
Blower Panel
with Opening
BLOWER:
From the position A0 to the position A1
1) Remove the ceiling of the unit, the Blower Panel with Opening and the Service Panel.
2) Remove the motor-fan assembly from the unit unscrewing the supports from the base, and throwing away the
extension collar, if there is one.
3) Unscrew the supports that have been left on the fan-motor assembly.
4) Turn the fan-motor assembly to its new position 90º horizontally and 180º on its shaft. The motor should now
be accessible from the Service Panel in this new position.
5) Screw down the fan-motor assembly in its new position using the supports.
6) Assemble the Blower Panel with Opening and the Service Panel in its new position, taking special care with the
weather striping.
INLET:
From the position B0 to the position B1
1) Remove the Intake Opening and the Service Panel.
2) Switch the position of the Opening and Service Panels.
SEE LOCATIONS AND SIZES FOR THE OPENINGS IN THEIR STANDARD AND OPTIONAL
POSITIONS ON THE GENERAL MEASUREMENT DRAWINGS.
2.6.- DUCT INSTALLATION
Duct calculation and design must be effected by a qualified technician.
The ductwork dimensions should be determined in accordance with the air flow circulating through it and with
the available static pressure of the unit. This data appears in the corresponding Technical Documentation.
Various suggestions are made here below, regarding the layout and design of the said ductwork:
1- Whatever type of duct is used, it should not be made of materials which are flammable, or which give off toxic
gases in the event of a fire. The internal surfaces should be smooth , and not contaminate the air which passes
through. It is advisable to use isolated sheet metal duct in order to avoid condensations and thermic charges.
2- At the points where the duct joins with the unit, it is advisable to use a flexible connection which absorbs
vibration and prevents the transmission of noise inside the ductwork and allows the unit access.
3- Bends should be avoided as much as possible near the unit outlet. If unavoidable, they should be as slight
as possible, and internal deflectors should be used when the duct is of large dimensions.
4- For heat pump indoor unit, room height has to be taken on account because for long heights the hot air should
go on to the top, and this makes difficult conditioning the room. In this case, the return and discharge grilles
should be positioned adequately and have the suitable dimensions.
22
2.- INSTALLATION
2.7.- DRAINS
GENERAL RECOMMENDATIONS:
For drain piping, it is advisable to use PVC copper and steel tube.
For drain tube, use a sealing material. Do not make any drill on the unit base: the drip tray could be damage.
Slightly tip the unit toward the drainage side as the picture shows.
If heat pump outdoor unit is going to be installed for working with outdoor temperatures below 0ºC,
an electrical heater must be installed around the drain pipe in order to avoid ice formed and not get
obstructed.
INDOOR UNITS LNXO:
They are provided with two 1/2” male steel threaded drain pipe welded to the drip tray located at both sides of the
unit, which can be used faintly to adapt the installation requirements.
The units are also provided with a PVC 20mm inside diameter / 25mm outside diameter tamper and adaptor to
connect the drain pipe as the picture shows.
NOTE: it is necessary that at least one of the two drain tubes must be blind.
UNITS LNXO 018-024-030-036-048-060
Drain tube
UNITS LNXO 070-080
Drain tube
UNIT
UNIT
2%
2%
2%
2%
Drain pipe
PVC adaptor
PVC adaptor
Siphon
Drain pipe
It is not necessary to install a siphon to evacuate water
Install siphon to avoid suction from fans.
from the unit, but it is advisable to install it to avoid
offensive odor.
Slightly tip the units (2%) toward the drainage tube and check that the drip tray is clean and free from dirt and other
debris from the works, and that the water drains correctly.
HEAT PUMP OUTDOOR UNITS WITH AXIAL FAN KJHK:
Unit models 018-024-030-036-048-060-070-80 are provided
with a steel 16mm outdoor diameter drain tube welded to the
unit base; for this application a siphon must be installed.
Connect the siphon to the drain pipe of the unit, and mount
the drain pipe with at least a 2% incline from the siphon.
Slightly tip the unit (2%) toward the drainage tube and check
that the drip tray is clean and free from dirt and other debris
from the works, and that the water drains correctly.
Drain tube
UNIT
2%
2%
Drain pipe
Siphon
HEAT PUMP OUTDOOR UNITS WITH CENTRIFUGAL FAN KCHK:
Unit models 018-024-030-036 are provided with a steel 16mm outdoor diameter drain tube welded to the unit base;
for this application a siphon is not necessary.
Unit models 048-060-070-080 are provided with a 3/4" male steel threaded welded to the drip tray; for this application
a siphon must be installed. Connect the siphon to the drain pipe of the unit, and mount the drain pipe with at least
a 2% incline from the siphon.
Slightly tip the unit (2%) toward the drainage tube and check that the drip tray is clean and free from dirt and other
debris from the works, and that the water drains correctly.
UNITS KCHK 048-060-070-080
UNITS KCHK 018-024-030-036
Drain tube
Drain tube
UNIT
UNIT
2%
2%
2%
Drain pipe
Drain pipe
Siphon
It is not necessary to install siphon to evacuate water
from the unit, but it is advisable to install it to avoid
offensive odor.
23
2.- INSTALLATION
2.8.- SETTING UP TEMPLATES OF OUTDOOR UNIT
OUTDOOR UNIT WITH CENTRIFUGAL FAN (mm)
SETTING UP TEMPLATE UNITS 018-024-030-036
A
SETTING UP TEMPLATE UNITS 048-060-070
Refrigerant connection valves
A
Refrigerant
connection valves
AIR OUT
OPTIONAL
B
AIR IN
OPTIONAL
AIR IN
STANDARD
B
AIR IN
OPTIONAL
AIR OUT
OPTIONAL
AIR OUT
STANDARD
AIR IN
STANDARD
AIR OUT
STANDARD
Use 4 rod of a diameter of 10mm if the unit is fixed in the roof , or screw M.10 if the unit is fixed on the ground.
SETTING UP TEMPLATE UNITS 080
Refrigerant connection valves
A
B
A
AIR IN
OPTIONAL
B
KCCK / KCHK KCCK / KCHK KCCK / KCHK KCCK /KCHK KCCK /KCHK
018-024
030-036
048
060-070
080
983
1064
1300
1350
1500
A
AIR IN
STANDARD
AIR OUT
STANDARD
Dimensions recommended on
point A and B are referred to the
hole of support of the unit.
AIR OUT
OPTIONAL
B
530
660
711,6
721,6
791
OUTDOOR UNIT WITH AXIAL FAN (mm)
D
E
D
KJCK KJCK KJCK KJCK KJCK KJCK KJCK KJCK
KJHK KJHK KJHK KJHK KJHK KJHK KJHK KJHK
018
024
030
036
048
060
070
080
520
520
620
620
620
620
602
602
E
126,4 126,4 176,4
F
E
G
KJCK
KJHK
Ø 12
10
10
10
176,4
176,4 176,4
10
10
10
198
198
12
12
386
386
F
F
G
Ø Drain pipe 16 mm
343,5 343,5 343,5
343,5
343,5 343,5
2.8.- SETTING UP TEMPLATES OF INDOOR UNIT
LNXO
LNXO
LNXO
LNXO
018-024 030-036 048-060 070-080
B
A C
B
LNXO
018-024-030-036-048-060
C
B
A
535
700
750
850
C
B
49
55
62
32
C
354
472
515
409
D
132
173
173
1345
E
1000
1000
1195
1405
F
1038
1038
1233
1375
LNXO
070-080
A
C
D
D
E
B
D
F
E
F
24
2.- INSTALLATION
2.9.- OPTIONAL OPERATIONS PRIOR TO UNIT INSTALLATION:
CHANGING THE POSITION OF INLET AIR PANEL FOR UNITS LNXO 018-024-030-036-048-060
Air filter
D0
Service panel
Service panel
From the position
D1
Profiles for
fixing air filter
Air filter
D0 to the position D1
1) Detach air filter profiles.
2) Detach service panel.
3) Interchange the position of air filter and service panel, and secure them with the screw supplied.
SEE LOCATIONS AND SIZES FOR THE OPENINGS IN THEIR STANDARD AND OPTIONAL
POSITIONS ON THE GENERAL MEASUREMENT DRAWINGS.
2.10.- UNIT LOCATION OF INDOOR UNIT LNXO (mm)
INSTALL THE UNIT IN POSITION WHERE:
1. Where there is enough security to support weight of the indoor unit.
2. Where you can remove filters for maintenance purposes. Install always the filter. If the unit works without filter
you will find problem on the unit because of dust.
3. Where connection pipes of the outdoor unit can have easily access.
4. Where drain pan can evacuate easily.
5. Assure that there is enough space around the unit for manipulation.
6. Where you can access easily the electrical box.
7. Where the coil cannot get dirty and obstructed because of dust.
These units can work in normal radio electric conditions. Certain ambiental conditions may cause
high electromagnetic emissions; for this kind of installation, please consult.
Install the unit with rod M-8 with nuts and washers, as
drawing shows.
Install also rubbers to avoid noise transmissions.
1
Nut
2
Washer
Suspension rod
M-8
Rubbers
1
2
2
1
1
When lifting the unit into position, care should be taken not to lift the unit by the drip tray, refrigerant connections
or drain tube; this could damage the unit. The unit should be lifted by the hanging brackets. Make sure all the panels
are fitted and secured.
The unit brackets hook over the washers. Tighten the unit with the lower nuts.
Check to ensure the unit is level. Tighten the nuts on the
suspended rods.
Ensure there is sufficient space around the unit t service it.
Where there is a false ceiling ensure that there is enough
space to provide access. Where there is a false panelled
ceiling, ensure that there is enough adjacent space to remove
the panels.
If there is enough space between unit and the ceiling, it is advisable to install a rubber sheet. In addition, an access
panel under the unit should be left in order to carry out further maintenance operations.
25
2.- INSTALLATION
2.11.- ELECTRICAL CONNECTIONS
IMPORTANT
Prior of making the electrical connections,
set the switch for heat pump unit or for cooling only unit.
COOLING ONLY
(factory setting)
This unit is valid for operating as a cooling only or heat pump
application. It should be configured prior to making the electrical
connections, by setting the configuration switch located on the
(P.C.B) at indoor unit as follows:
JMODE
JMODE
HEAT PUMP
P.C.B.
JMODE
SITUATION B
Models 030(3ph)-036-048-060-070-080
SITUATION A
Models 018-024-030(1ph)
1
OUTDOOR
UNIT
2
3
OUTDOOR
UNIT
2
3
1 Power supply
2 Remote control connection (max. length 15m.)
3 Indoor unit/Outdoor unit connection
1
VOLTAGE
MODELS
ONLY COOLING
1
POWER SUPPLY
230V SINGLE PHASE UNITS
PE N L
X1
NUMBER OF WIRES X SECTION
HEAT PUMP
2
018
024
030
3x2,5mm
036
3x2,5mm
036
4x2,5mm
048
060
2
4x4mm
070
4x4mm
2
4x1mm
shielded
cable (supplied
with the unit)
2
2
1N ~ 230V - 50 Hz + PE
POWER SUPPLY
230V THREE-PHASE UNITS
PE L1 L2 L3
X1
3 ~ 230V - 50 Hz + PE
POWER SUPPLY
400V THREE-PHASE UNITS
PE L1 L2 L3 N
X1
2
5x1,5mm
2
2
5x2,5mm
2
5x2,5mm
2
5x4mm
4x1mm
shielded
cable (supplied
with the unit)
2
4x2,5mm
2
4x1,5mm
2
4x1,5mm
4x2,5mm
3
4x4mm
2
4x1mm
(supplied
with the unit)
2
6x1,5mm
2
4x1mm
(supplied
with the unit)
2
5x1,5mm
4x1,5mm
2
5x2,5mm
2
2
2
6x2,5mm
2
6x1,5mm
2
4x4mm
2
2
4x1mm
(supplied
with the unit)
4x1mm
(supplied
with the unit)
2
4x6mm
2
4x1mm
shielded
cable (supplied
with the unit)
2
3x2,5mm
2
2
4x1,5mm
2
4x1mm
shielded
cable (supplied
with the unit)
2
3x2,5mm
2
2
4x1mm
shielded
cable (supplied
with the unit)
4x1mm
shielded
cable (supplied
with the unit)
030
036
080
2
2
2
2
4x6mm
060
070
3N ~ 400V - 50 Hz + PE
2
080
048
1
3
2
5x2,5mm
4x1,5mm
2
5x4mm
2
6x1,5mm
2
4x1mm
(supplied
with the unit)
2
6x1,5mm
2
4x1mm
(supplied
with the unit)
2
6x1,5mm
NOTE: The sections have been calculated for a distance no longer than 35m, and a voltage drop of 10V.
The wiring must comply with the regulations in force. Make sure the earth cable connection is correct.
IN ORDER TO CARRY OUT THE ELECTRICAL CONNECTIONS, FOLLOW
THE ELECTRICAL DIAGRAM SUPPLIED WITH THE UNIT
REMEMBER THAT THE COMPRESSOR IS A SCROLL TYPE COMPRESSOR
Scroll type compressors only compress in one direction of the rotation. Single phase models are always started
up in the proper direction; however, the three phase models, turn in either direction depending on the order of the
power supply phases. Therefore, it is essential that the phase connection for scroll-type three-phase compressors
be carried out correctly, that is why these three-phase compressors are supplied as standard with a three-phase
detector, which avoids the unit starts unless the connections are made on the right way. The direction of the rotation
is right when an indicator-light turns ON. If the connection is wrong, this indicator will not light and the rotation will
be reversed. If this occurs, the solution is to disconnect, switch the wires between two of the phases and connect
again.
VOLTAGE OPERATING LIMITS
MODEL
018-024-030-036
030-036-048-060
070-080
230 V-1Ph-50Hz
LIMIT
198-264 V -1Ph- 50Hz
230 V-3Ph-50Hz
180-242 V -3Ph- 50Hz
400 V-3Ph-50Hz
230 V-3Ph-50Hz
342-462 V -3Ph- 50Hz
180-242 V -3Ph- 50Hz
400 V-3Ph-50Hz
342-462 V -3Ph- 50Hz
VOLTAGE
26
2.- INSTALLATION
2.11.- ELECTRICAL CONNECTIONS
ACCESS TO ELECTRICAL COMPONENTS OF INDOOR UNIT
The electric board, located outside of the unit, allows easy access to electrical components.
To carry out wiring: power supply of the unit, connection to remote control, and connection with outdoor unit, get
access to electrical panel removing electric board cover. For electrical connection refer to wiring diagram in the unit.
For easier installation:
The electrical panel can be folded 90º, so terminals
will be easily accessed, and also can be removed
from the unit 30cm. In case it is necessary to place
the electric board away from the unit, the temperature
sensor wire and fan wire may be extended up to a
maximum of 25m using screened wire.
The remote control terminal housing may be
detached to ease its connection.
COOLING ONLY UNITS
LNXO 018-024-030
PE L
N
1
2
3
PE L
N N
1
2
LNXO 036-048-060
LNXO 036
PE L
PE L
N
1
2
3
PE L
N N
1
2 OUTDOOR
OUTDOOR
UNIT
UNIT
N
1
2
3
PE L1 L2 L3 N
L
N
1
OUTDOOR
UNIT
2
1N~230V-50Hz+PE
1N~230V-50Hz+PE
PE L
N
1
2
3
PE L1 L2 L3 N
L
N
3~230V-50Hz+PE
LNXO 070-080
LNXO 030-036-048-60
1
2
PE L1 L2 L3 N
LNXO 070-080
PE L
N
1
2
PE L
N
N
1
OUTDOOR
UNIT
3
PE L1 L2 L3 N
2
PE L
N
1
PE L
N
N
OUTDOOR
UNIT
3N~400V-50Hz+PE
2
3
1
2
OUTDOOR
UNIT
3~230V-50Hz+PE
3N~400V-50Hz+PE
HEAT PUMP UNITS
LNXO 018-024-030
PE L
N
1
2
3
PE L
N
N
1
2
3
4
OUTDOOR
UNIT
1N~230V-50Hz+PE
LNXO 036-048-060
LNXO 036
PE L
N
1
2
3
PE L
N
N
1
2
PE L
3
N
1
2
3
PE L1 L2 L3 N
L
1
2 3
PE L1 L2 L3 N
OUTDOOR
UNIT
1N~230V-50Hz+PE
L
N
1
2
3
4
OUTDOOR
UNIT
3~230V-50Hz+PE
LNXO 070-080
LNXO 036-048-060
PE L
4
N
N
1
2
3
4
PE L1 L2 L3 N
PE L
N
1
2
PE L
N
N
1
3
2 3
4
PE L1 L2 L3 N
PE L
N
1
2 3
PE L
N
N
1
OUTDOOR
UNIT
OUTDOOR
UNIT
3N~400V-50Hz+PE
LNXO 070-080
3~230V-50Hz+PE
27
2 3
4
OUTDOOR
UNIT
3N~400V-50Hz+PE
2.- INSTALLATION
2.12.- REFRIGERANT CONNECTIONS
UNIT CONNECTION MODELS 018 to 060
Insulated gas line
UNIT CONNECTION MODELS 070 / 080
INDOOR
UNIT
Flared nuts
Service
valve
Service
valve
Coupling
OUTDOOR
UNIT
Coupling
Insulation
OUTDOOR
UNIT
Protective hoods
INDOOR
UNIT
Insulated gas line
Flared nuts
Welded connection
Insulation
Liquid line without insulation
Insulated liquid line
REFRIGERANT CONNECTION INSTRUCTIONS FOR UNITS WITH COUPLINGS AND SERVICE VALVES
NOTE: THE REFRIGERANT GAS AND LIQUID LINES MUST BE INSULATED FOR MODELS 018 TO 060. FOR
MODELS 070 / 080 THE LIQUID LINE IS NOT NECESSARY TO BE INSULATED.
Make the refrigerant connections between the outdoor and indoor unit, as follows:
-With the valves closed on outdoor unit, unscrew the flare nuts, removing all the protective hoods.
-Unscrew the flare nuts and the coupling on indoor unit (mod. 018 to 060), removing the protecting hoods.
-Introduce the flare nuts in the corresponding union tubes, previously isolated.
-Make the thread union of the tubes in valves and coupling using the keys, as shown in the picture. And welded
on indoor unit for models 070 / 080.
-To do vacuum, first close the valves on outdoor unit, second connect the plug of the vacuum pump to the
suction valves service port 1/4”, do vacuum to get an absolute pressure of 0,5 mm Hg. This way the vacuum
will be created in indoor unit and union pipes.
-Remove the plugs and open the valves of outdoor unit.
-Verify leakage in couplings.
-Insulate pipes and service ports.
CUT THE PIPE PROPERLY
MAKE A CORRECT FLARE
Pipe cutter
YES
Unpolished
Bent
FAULTY
90°
NO
Bent
Damaged surface
AVOID FROM METALLIC DUST ENTERING INTO THE PIPE
Flawed
Irregular
0-0.5 mm.
CLEAN THE BURRS
Copper pipe
TIGHTENING TORQUE
Apply the tightening torque shown in the
table. Insufficient tightening torque could
cause refrigerant leak, excessive tightening
torque will damage pipe flare.
PIPE DIAMETER
TIGHTENING TORQUE
1/4''
15-20 Nm
3/8''
31-35 Nm
5/8''
50-55 Nm
3/4''
65-70 Nm
Service port
Gas line
Liquid line
28
2.- INSTALLATION
2.12.- REFRIGERANT CONNECTIONS
DISTANCES BETWEEN UNITS
To locate the outdoor and the indoor units, refer to the following information:
SYPHONS: Install syphons on
the installation as the picture
shows, on the upper and lower
position of the suction line. No
other syphons are necessary.
The indoor units LNXO 070-080
are supplied with welded
connections.
OUTDOOR
UNIT
2%
OUTDOOR
UNIT
B
2%
1
INDOOR
UNIT
2
2%
INDOOR
UNIT
L
A
2
1
2
L
1
A,B,C : Unit positions
L : Total length
1 = Gas line
2 = Liquid line
INDOOR
UNIT
L
OUTDOOR
UNIT
C
2%
2%
REFRIGERANT LINES SELECTION
UNIT - MODEL
REFRIGERANT LINES
Ø Liquid
018
1/4"
024
1/4"
030
3/8"
036
3/8"
048
3/8"
060
3/8''
070
1/2''
080
1/2''
Ø Gas
1/2"
5/8"
5/8"
3/4"
3/4"
3/4"
7/8"
7/8"
Maximum vertical line length (m)
15
15
15
15
15
15
15
15
Max. vertical line length + horizontal (m)
Min. vertical line length + horizontal (m)
25
5
25
5
25
5
25
5
25
5
25
5
25
5
25
5
Maximum number of curves
12
12
12
12
12
12
12
12
Unit connections
REFRIGERANT LINES SELECTION FOR LONG DISTANCES UNITS
(only for applications as pictures A and B show; only cooling sets NJCK 018 to 060 standard units, and heat
pump NJHK 0180 to 060 with a special outdoor unit LD).
UNIT - MODEL
REFRIGERANT LINES
Ø Liquid
018
1/4"
024
1/4"
030
3/8"
036
3/8"
048
3/8"
060
3/8''
Ø Gas
1/2"
5/8"
5/8"
3/4"
3/4"
3/4"
Maximum vertical line length (m)
30
30
30
30
30
30
Max. vertical line length + horizontal (m)
Min. vertical line length + horizontal (m) NJHK-LD
55
25
55
25
55
25
55
25
55
25
55
25
Maximum number of curves
12
12
12
12
12
12
Unit connections
NOTE: THE REFRIGERANT GAS AND LIQUID LINES MUST BE INSULATED FOR MODELS 018 TO 060.
FOR MODELS 070 / 080 THE LIQUID LINE IS NOT NECESSARY TO BE INSULATED.
For other positions and longer distances, consult the Lennox Technical Support Department
for application assistance. The following data will be obtained from that estimation:
pipe dimensions, suction traps, isolation, refrigerant charge.
REFRIGERANT CHARGE:
The outdoor unit is supplied with refrigerant R-407C factory precharged, for the set indoor+outdoor unit and for a
line of 5 meter long. When the line length exceeds 5m, add the following amount of refrigerant per meter line:
COOLING ONLY UNIT MODELS
Refrigerant charge R-407C per meter (gr.)
HEAT PUMP UNIT MODELS
Refrigerant charge R-407C per meter (gr.)
018
024
030
036
048
060
070
080
10
10
20
20
20
20
85
85
018
024
030
036
048
060
070
080
20
20
45
45
45
45
85
85
29
3.- COMMISSIONING AND OPERATION
3.1.- DATA PAGE FOR UNIT COMMISSIONING
UNIT:
SERIAL No:
CONTROL PANEL IDENTIFICATION CODE
INSTALLATION ADDRESS:
INSTALLER:
INSTALLER TEL.:
INSTALLER ADDRESS:
DATE OF COMMISSIONING:
CHECKS:
SUPPLY VOLTAGE:
RATED VOLTAGE OF THE UNIT:
YES
NO
UNIT ON SHOCK ABSORBERS
DRAINAGE WITH TRAP
GENERAL POWER SUPPLY CONNECTION
CONTROL PANEL CONNECTION
COMPRESSOR OIL LEVEL INDICATOR
DATA INPUT:
HEATING CYCLE
COOLING CYCLE
Air Intake Temperature to the coil:
ºC
Air Intake Temperature to the coil:
ºC
Air Output Temperature to the Coil:
ºC
Air Output Temperature to the Coil:
ºC
High Pressure:
High Pressure:
Low Pressure:
Low Pressure:
ELECTRIC POWER CONSUMPTION (Amps)
Compressor
Compressor
Fan
Fan
Options Installed:
Comments:
30
3.- COMMISSIONING AND OPERATION
3.2.- PRECAUTIONS TO BE TAKEN ON INSTALLATION
The refrigerant R407-C is a mixture of other three refrigerants that behave as pure compounds. This fact makes
that the operations of installation, service and maintenance must be special, for the next operations:
SYSTEM EVACUATION
Vacuum must be done until the absolute pressure does rise -750mm Hg during an hour, since the compressor
oil high hygroscopic degree can cause corrosion in some metallic materials.
REFRIGERANT CHARGING
To maintain the mixture composition, the refrigerant must be charged always in liquid phase. For what it is necessary
to have special caution when it is little quantity of refrigerant in the bottle.
LEAKS
If a leak takes place in the system that has produced an important evacuation of the refrigerant charge, instead
of recharging the system, it is convenient to eliminate the whole charge completely, the system must be evacuated
and charged again or to introduce the charge according to an specified value.
OPERATION
On a system operated with refrigerant R407-C, during the evaporation phase at constant pressure the temperature
increases; and during the condensation phase at constant pressure the temperature decreases a certain value.
Consequently, the terms “evaporation temperature” and “condensation temperature” should be redefined.
PRECAUTIONS TO BE TAKEN IN THE USE OF R-407C Refrigerant:
R-407C Refrigerant is used in the unit; therefore, the following precautions characteristic of this gas should be taken:
- The Vacuum Pump must have a Check Valve or Solenoid Valve.
- Pressure Gauges and Hoses for the exclusive use with R-407C Refrigerant should be used.
- The charge should be carried out in the Liquid Phase.
- Always use scales to weight-in charge - Use the Leak Detector exclusive for R-407C Refrigerant.
- Do not use mineral oil, only synthetic oil to ream, expand or make connections.
- Keep pipes closed before using them and be very thorough about any possible dirt (dust, filings, burrs, etc.).
- When there is a leak, gather what is left of the charge, create a vacuum in the unit and completely recharge with new R-407C
Refrigerant.
- Brazing should always be carried out in a nitrogen atmosphere.
- Reamers should always be well sharpened.
REMEMBER THAT THE COMPRESSOR IS A SCROLL TYPE COMPRESSOR:
Scroll type compressors only compress in one direction of the rotation. Single phase models are always started
up in the proper direction; however, the three phase models, turn in either direction depending on the order of the
power supply phases. Therefore, it is essential that the phase connection for scroll-type three-phase compressors
be carried out correctly, that is why these three-phase compressors are supplied as standard with a three-phase
detector, which avoids the unit starts unless the connections are made on the right way. The direction of the rotation
is right when an indicator-light turns ON. If the connection is wrong, this indicator will not light and the rotation will
be reversed. If this occurs, the solution is to disconnect, switch the wires between two of the phases and connect
again.
3.3.- PRELIMINARY CHECKS
1 Check that drain pipe connections, syphon installation, and their fixtures are secure and that the level of the
unit is tipped toward the drain.
2 Inspect the state of the ducts and grilles (clean and open grilles, no breaks in the duct, etc.).
3 Check that the power supply is the same as stated on the Rating Plate which is in agreement with the electrical
diagram for the unit and that cable sizes are correct.
Check that tightness of the electrical connections to their terminals and to ground.
4 Check the control panel connections.
(If the connection is wrong, the unit will not operate and the control panel display will not light).
Inspect the Air Filter, which should be in its housing and correctly positioned (the metal grille should be toward
inside).
Air filter
Air return
duct
5 Check, with your hand, that the fans turn freely.
FIGURE FOR THE STANDARD UNIT CONFIGURATION FOR MODELS 080
Power supply 3
Outdoor
air intake duct
2
Close the unit and check that
there are no loose panels.
Discharge
duct
1 Drain
pipe
5
Fan access
1 Drain pipe
Flexible joint at
Openings
Power supply 3
1
2 Outdoor
discharge duct
31
Trap
2
Flexible joint
at Openings
3 Power
supply
Drain pipe
ON / OFF
SLEEP
FAN
MODE
SET TEMP
OFF TIMER
HOUR
MINUTE
4 Control
panel
3.- COMMISSIONING AND OPERATION
3.4.- STEPS TO FOLLOW FOR COMMISSIONING THE UNITS
- On heat pump units, the compressor has a single phase electric heating element to assure a separation
between the refrigerant and the oil in the housing. This heater is activated when the compressor is off and stops
working when the compressor is on. About eight hours before start up or after a long shutdown period, voltage
should be supplied to the unit so that this heater will be activated.
- To start the unit, follow the instructions given in the Control Panel Manual supplied with the unit (requesting
operation in any of the modes, cooling, heating, or automatic). After a time lapse, the unit will start.
- With unit operating, check that the fans are turning freely and in the proper direction.
REMEMBER THAT THE COMPRESSOR IS A SCROLL TYPE COMPRESSOR
Scroll type compressors only compress in one direction of the rotation. Single phase models are always started
up in the proper direction; however, the three phase models, turn in either direction depending on the order of the
power supply phases. Therefore, it is essential that the phase connection for scroll-type three-phase compressors
be carried out correctly, that is why these three-phase compressors are supplied as standard with a three-phase
detector, which avoids the unit starts unless the connections are made on the right way. The direction of the rotation
is right when an indicator-light turns ON. If the connection is wrong, this indicator will not light and the rotation will
be reversed. If this occurs, the solution is to disconnect, switch the wires between two of the phases and connect
again.
- Connect high and low pressure gauges and check that operating pressure values are normal.
- Measure electrical consumption for the unit and check that it is near what is indicated on the Rating Plate.
- Check the electrical consumption of the compressor and the fans with what is specified in the physical data sheets.
- In the case of a Heat Pump unit, make a cycle change on the Control Panel checking that the 4-way valves make
the change correctly. Check the pressure values in the new cycle.
- UNIT PROTECTIONS:
1.- Electrical protections:
à Compressor start temporize 3 minutes. Avoid continued compressor starts.
à Thermal compressor protection (three phase models). Protects from a high compressor absorbed power.
To reset this protection, push the thermal protection button (located at the outdoor unit electrical box).
à Three phase detector (three phase models). Explained before.
à Protection fuses outdoor-indoor unit connection.
2.- Refrigerant protections:
à Pressostats:
RATED (kg/cm2)
OFF
ON
DESCRIPTION
UNITS
EFFECT
RESET
Low pressure (LP)
030 to 080
0,5
1,5
Unit stops
High pressure (HP)
Low ambient control
(HPC)
030 to 080
27,5
22
Unit stops on cooling mode Manual (electric)
Heat pump units
26,5
22
Outdoor fan stops on
heating mode
Automatic/
Manual (electric) (1)
Automatic
(1) For heat pump units, when the unit is working during an hour, the 2 first resets are automatic, the third one is manual (electric).
For cooling only units, the reset is always manual (electric). For electrical resets, disconnect power supply from the unit.
Indication for pressostat alarms:
For heat pump units, the PCB (located at the outdoor unit electrical box) has 2 indicators, HP and LP, which
are low pressure and high pressure indicators. If any of those are lighted, indicates that the protection is
activated; if any indicator is flashed, indicates that the protection has been reset, and it is waiting for
disconnecting power supply.
à Probes:
• Anti-freeze protection: it comes on through the indoor unit coil probe (ID), avoids ice forms on cooling mode
when temperature measures 0ºC, the unit stops. This protection has an automatic reset.
• Overload heating mode protection: it comes on through the indoor unit coil probe (ID), avoids the unit works
on heating mode with high condenser temperatures, when temperature measures 63ºC, the unit stops. This
protection has an automatic reset at the first time, and manual (electric) for the second one.
3.- Defrost cycle:
For heat pump units during the heating mode, it is possible the unit goes on to the defrost cycle. During this
cycle, it is necessary to melt the ice on the outdoor coil, for that the unit will start working on cooling mode,
and outdoor and indoor fans will stop.
needed
JMP5
JMP6
Function: the defrost cycle is controlled through the PCB (outdoor unit) and the Time
for defrost
temperature probe (TS) located on the outdoor coil. The defrost cycle begins when
30 min
TS< -2ºC during 45 min. (not necessary on and on). This period can be changed
45 min (2)
through jumpers JMP5 and JMP6 from PCB. The defrost cycle ends when
60 min
TS> +18ºC or because the defrost cycle has exceeded 12 min.
75 min
(2) Factory setting
32
4.- MAINTENANCE
IMPORTANT: MAKE SURE THE UNIT IS COMPLETELY DISCONNECTED FROM THE POWER SUPPLY WHEN
CARRYING OUT ANY TYPE OF WORK ON THE MACHINE. ALL MAINTENANCE SERVICE ON THE UNIT MUST
BE CARRIED OUT BY QUALIFIED PEOPLE. ONLY COIL CLEANING AND FILTER REPLACEMENT CAN BE
DONE BY NON-QUALIFIED PEOPLE.
4.1.- PREVENTIVE MAINTENANCE
PREVENTIVE MAINTENANCE PREVENTS COSTLY REPAIRS. BECAUSE OF THIS, PERIODIC INSPECTIONS ARE REQUIRED:
- GENERAL STATE OF THE CASING:
Furniture, paint, deterioration due to bumps, rust spots, leveling and supporting, state of the shock absorbers,
if installed, screwed panels, etc.
- ELECTRICAL CONNECTIONS:
State of hoses, tightness of screws, grounding, current draw of the compressor and fans and checking that the
unit is receiving the correct voltage.
- COOLING CIRCUIT:
Check that pressure values are correct and that there are no leaks. Check that there is no damage to the pipe
insulation, that the state of the batteries is correct and that there are no chips or clogs retained by the air flow,
etc.
- COMPRESSOR:
Inspect the oil level, if sight glass is present.
Inspect the state of the silent block fixtures.
- DRAINS:
Check that water drains correctly and that the drain trays are clean.
- FANS:
Check that fans turn freely and in the correct direction without excessive noises.
- CONTROL:
Check Set Points and normal operation.
- AIR FILTER:
Detachable for cleaning by sliding front and down side.
A) ONE SIDE: filter can be removed sliding it out, from left or right side, as picture shows.
B) FRONT SIDE: push air filter up and pull it out, as shown in the picture.
The filter should be cleaned with a vacuum cleaner or washed in soapy water.
The frequency for cleaning or changing the air filters will depend on the quality air in the area (fumes, vapors,
suspended dust particles, etc.).
- ACCESS TO INSIDE COMPONENTS:
The whole unit will be accessed, without disassembling the ducts, through the cover located at the bottom of the unit.
This allows: - To carry out an inspection, checking or replacing any internal component of the unit (motor-fan).
- Cleaning the coil and drip tray.
LNXO 018-024-030-036-048-060
LNXO 070-080
Drip tray
Fan access panel
Fan access panel
It is very important cleaning the coil and the drip tray periodically.
- For models 018 to 060 it is necessary to detach the drip tray to get the coil. This can be easily done by removing
the screws which join the drip tray with unit sides.
- For models 070 to 080, to get the coil, only have to detach fan access panel.
33
4.- MAINTENANCE
4.2.- CORRECTIVE MAINTENANCE
If some component in the cooling circuit must be replaced, follow these recommendations:
- Always use original replacement parts.
- Remove the entire refrigerant charge from the unit. Create a slight vacuum as a safety measure.
- Regulation prohibits the release on the refrigerant into the atmosphere.
- If cuts must be made in the pipework, use pipe cutters. Do not use saws or any other tools that produce filings.
- All brazing must be carried out in a nitrogen atmosphere to prevent corrosion from forming.
Direction of the flame
- Use silver alloy brazing rod.
Wet rag
- Take special care that the flame from the torch is aimed in
Silver alloy welding rod
the opposite direction from the component to be welded and
Nitrogen
is covered with a wet rag in order to avoid overheating.
Component to be welded
- If a compressor must be replaced, disconnect it electrically and
un-braze the suction and discharge lines. Remove the securing screws and replace the old compressor with the
new one. Check that the new compressor has the correct oil charge, screw it to the base and connect the lines
and electrical connections.
- Carry out the vacuum above and below until -750 mm Hg is reached. Once this level of vacuum has been
reached, keep the pump in operation for at least one hour.
DO NOT USE THE COMPRESSOR AS A VACUUM PUMP.
- Charge the unit with refrigerant according to the data on the Rating Plate for the unit and check that there are
no leaks.
4.3.- FAILURE DIAGNOSIS
PROBLEM
SOLUTION
1.- Unit does not work.
• Check electrical supply of the unit.
• Check electrical connection.
• Check that remote controller and its parameters work correctly.
2.- The fan of the unit works too fast
without any change on speed.
• Check that the filter of the unit is clean.
• Check electrical connection.
• If the problem persists, check the function of the motor.
3.- Noise on pipe system.
NOTE: Some noises are normal
when unit stops and starts.
• Check refrigerant charge is correct.
• ¿was the vacuum made correctly?
• Check internal temperature; it could be quite low.
4.- Excess of condensation in indoor
unit.
5.- The indoor coil freezes
continuously.
• Check possible obstructions in the condensate pan, and also out of the pan.
• Check correct level of the unit.
• Check drainage pipe.
• Check the air filter of the indoor unit.
• Check the level of refrigerant.
• Check strangulation air flow or recirculation.
• If the freeze persists the expansion can be obstructed.
• ¿Is the temperature below 21 ºC?
• Check indoor temperature sensor.
6.- Unit works perfectly on cooling
mode, but does not produce heat
on heat pump mode.
• Check if you have configured correctly the function mode of the unit.
• Check inverter valve of the outdoor unit.
• Check the plate PCB to the solenoid inverted valve.
7.-External fan stops.
• Check that terminal connections are slack.
• Check the motor.
• Check the condenser situation.
• Check that the unit is not on defrost cycle (heat pump units).
8.-Excessive pressure of
condensation.
(working on cooling mode).
•
•
•
•
9.-Low pressure condensation.
(working on cooling mode).
• Check that the refrigerant charge is correct.
• Check possible obstruction on the expansion system, liquid pipe or exchanger.
• Check that air filter is not dirty or wrong function of indoor fan.
•
10.-Excessive pressure on return air.
•
(working on heat pump mode).
•
•
11.-Low pressure on return air.
•
(working on heat pump mode).
•
•
Check that the external exchanger is not dirty and obstructed.
Check that there is no condensable gas and air in the refrigerant circuit.
Check that the external fan works correctly.
Check that the refrigerant charge is correct
Check that the refrigerant charge is correct.
Check the situation of inverter valve.
Check retention valve situation (if incorporated).
Check that the refrigerant charge is correct.
Check possible obstruction on the expansion system of the outdoor unit.
Check that the external fan works correctly.
Check the correct function of the defrost control.
34
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IRELAND:
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SLOVAKIA :
SPAIN:
UKRAINE :
OTHER EUROPEAN COUNTRIES,
AFRICA,
MIDDLE-EAST :
COD: MIL90E-0303
03-2003
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