Lennox FLATAIR KFC Series User manual
1
1.1.- PHYSICAL DATA
1.2.-FAN SERVICES
1.3.- ELECTRICAL DATA
1.4.- OPERATING LIMITS
1.5.- UNIT DIMENSIONS
1.6.- SIZES OF STANDARD AND OPTIONAL OPENINGS
1.7.- AVAILABLE OPTIONS
DATA PAGE FOR UNIT COMMISSIONING
4.- MAINTENANCE
4.1.- PREVENTIVE MAINTENANCE
4.2.- CORRECTIVE MAINTENANCE
4.3.- FAILURE DIAGNOSIS
2.- INSTALLATION
3.- COMMISSIONING AND OPERATION
1.- GENERAL CHARACTERISTICS PAGE
PAGE
PAGE
PAGE
3
3
4
5
6-8
9-10
11
12
12
13-14
15
16
16
17-20
21-22
23
24
25
26
27
TABLE OF CONTENTS
PAGE 2
2.1.- INSTALLATION GUIDELINES
2.2.- UNIT INSTALLATION
2.3.- OPTIONAL TASK PRIOR TO UNIT INSTALLATION:
CHANGING THE POSITION OF BLOWERS AND AIR INTAKE
2.4.- UNIT LOCATION AND WEIGHT DISTRIBUTION
2.5.- INSTALLATION CLEARANCES
2.6.- DRAINS
2.7.- REFRIGERANT CONNECTIONS
2.8.- ELECTRICAL CONNECTIONS
3.1.- PRELIMINARY CHECKS
3.2.- STEPS TO FOLLOW FOR COMMISSIONING THE UNIT
2
UNIT: SERIAL No.:
INSTALLATION ADDRESS:
INSTALLER: INSTALLER TEL.:
CHECKS:
SUPPLY VOLTAGE:
DATA INPUT:
Air Intake Temperature to the coil: ºC
DATE OF COMMISSIONING:
INSTALLER ADDRESS:
RATED VOLTAGE OF THE UNIT:
YES NO
GENERAL POWER SUPPLY CONNECTION
CONTROL PANEL CONNECTION
COOLING CYCLE HEATING CYCLE
Air Output Temperature to the Coil: ºC
High Pressure:
Low Pressure:
Options Installed:
ºC
High Pressure:
Low Pressure:
ºC
Comments:
COMPRESSOR OIL LEVEL INDICATOR
UNIT ON SHOCK ABSORBERS
DRAINAGE WITH TRAP
CONTROL PANEL IDENTIFICATION CODE
DATA PAGE FOR UNIT COMMISSIONING
ELECTRIC POWER CONSUMPTION
Compressor
Fan
Compressor
Fan
(Amps)
Air Intake Temperature to the coil:
Air Output Temperature to the Coil:
3
1.- GENERAL CHARACTERISTICS
1.2.- FAN SERVICES
3
m /h
3
AIR FLOW
REFRIGERANT CHARGE NITROGEN (*)
KFHA: Heat pump unit R-22
KFCK: Cooling only unit R-407C
KFHK: Heat pump unit R-407C
NET WEIGHT
Cooling only units KFC
Heat pump units KFH
1.1.- PHYSICAL DATA
COMPRESSOR Nº / Type
130 135
Kg
180
1 / Scroll 1 / Scroll 1 / Scroll 1 / Scroll
195 265 285
1 / Scroll 1 / Scroll
275
1 / Scroll
10 12 16 22 24 28 30
Kg
135 140 185 200 270 285280
NOMINAL
AIR FLOW
MODELS
AVAILABLE STATIC PRESSURE Pa.
(*) The units are supplied with nitrogen gas, this must be removed and charge the unit with refrigerant R-22 or R-
407C, depends on unit model.
(See page 20, to calculate model refrigerant charge)
6600 6400 64003500 3400 4950 59000
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
6490 6300 63003410 3325 4850 5800
6340 6200 62003300 3160 4750 5700
6225 6100 61003190 3075 4625 5600
6100 5980 59803080 2980 4525 5495
5960 5870 58702970 2890 4425 5390
5850 5725 57252840 2790 4325 5280
5710 5600 56002700 2690 4225 5180
5600 5490 54902560 2580 4125 5075
5480 5375 53752410 2400 4040 4975
5350 5250 52502350 3940 4875
5200 51003840 4775
5090 50003750 4675
49504575
48004460
46504350
4500
10 12 16 22 24 28 30
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UNIT MODEL
4
1.- GENERAL CHARACTERISTICS
V/f (50 Hz)
V/f (50 Hz)
1.3.- ELECTRICAL DATA
3,21
Kw
3,84 5,65 7,376,25
Total power in Cooling cycle
Total power in heating cycle
Voltage
230V-400V/ 3Ph
230V/ 1Ph
KFHA 12KFHA 10 KFHA 16 KFHA 22 KFHA 24 KFHA 28 KFHA 30
KFCK 12
KFHK 12
KFCK 10
KFHK 10
KFCK 16
KFHK 16
KFCK 22
KFHK 22
KFCK 24
KFHK 24
KFCK 30
KFHK 30
KFCK 28
KFHK 28
Kw
Kw
Kw
Maximum current
Rated absorbed power
2,03 2,54
Kw
2,94 3,70 4,85 6,485,48
Total power in cooling cycle
Total power in heating cycle
Voltage
230V-400V/ 3Ph
230V/ 1Ph
Kw
Kw
Kw
0,52 0,52 1,10 1,60 1,60 1,601,60
Maximum current
Total current
Start up current
0,52 0,52 1,10 1,60 1,60 1,601,60
2,60 3,41
Kw
4,11 5,02 5,85 8,837,41
Rated absorbed power
2,26 3,60
2,79 3,68
Kw
4,41 5,20 6,05 9,257,43
Total Current
Start up current
UNIT MODELS
UNIT MODELS
A
A
16,7/7,2 19,3/8,7 19,9/11,5 22,4/12,9 25,3/14,6 36,5/21,028,5/16,3
A
A
177/109183/83181/109193/110148/77102/5496/47
99
3,1 3,1
4,8/2,8 7,4/4,3 8,1/4,7 8,1/4,7 8,1/4,7
18,6
A
A
A
A
177/109183/83181/109193/110148/77102/5496/47
99
3,1 3,1
4,8/2,8 7,4/4,3 8,1/4,7 8,1/4,7 8,1/4,7
16,7/7,2 19,3/8,7 19,9/11,5 22,4/12,9 25,3/14,6 36,5/21,028,5/16,3
18,6
Fan
Compressor (heating cycle)
Fan
Compressor
Fan
Compressor (cooling cycle)
Compressor (heating cycle)
Compressor (Cooling cycle)
Compressor
Fan
3,12
3,93
5,21 6,62
2,55 3,06 3,50 5,30
7,45 10,43
6,45 8,08
9,01
7,08
44,6/25,736,6/21,033,4/19,329,8/17,224,7/14,3
22,4/11,819,8/10,3
21,7
3,31
4,20
5,51 6,80
2,78 3,73 4,70 5,44
7,65 10,85
7,25 8,97
9,03
7,85
44,6/25,736,6/21,033,4/19,329,8/17,224,7/14,3
22,4/11,819,8/10,3
21,7
5
1.- GENERAL CHARACTERISTICS
(To install with LFXO / LFCK / LFHK / LFHA indoor unit)
INDOOR
TEMPERATURE
MAXIMUM TEMPERATURES MINIMUM TEMPERATURES
32º C DB / 23ºC WB
COOLING CYCLE
OPERATION
21º C DB / 15ºC WB
OUTDOOR
TEMPERATURE 0º C (MODELS 22/24/28/30)
19º C (MODELS 10/12/16) (*)
INDOOR
TEMPERATURE
MAXIMUM TEMPERATURES MINIMUM TEMPERATURES
32º C DB / 23ºC WB 21º C DB / 15ºC WB
OUTDOOR
TEMPERATURE
INDOOR
TEMPERATURE 27º C DB 21º C BD / 15ºC WB
OUTDOOR
TEMPERATURE 24º C DB / 18ºC WB -10º C DB / -11ºC WB
0º C (MODELS 22/24/28/30)
19º C (MODELS 10/12/16) (*)
COOLING CYCLE
OPERATION
heating CYCLE
OPERATION
OPERATING LIMITS FOR (COOLING ONLY) UNITS
OPERATING LIMITS FOR (heating PUMP) UNITS
DB.- Dry Bulb Temperature
WB.- Wet Bulb Temperature
1.4.- OPERATING LIMITS
(*) With condensation pressure control (optional), 0 ºC minimum outdoor operating temperature
DEPENDING ON MODEL
(TABLE 1)
TABLE 1-COOLING CYCLE MAXIMUM OUTDOOR OPERATING TEMPERATURES
MODELS
With rated outdoor flow
With minimum outdoor flow
10 12 16 22 24 28 30
MODELS WITH REFRIGERANT R-407C
45
43
43
43
44
41
45
41
46
42
42
39
41
38
MODELS
With rated outdoor flow
With minimum outdoor flow
10 12 16 22 24 28 30
48
46
48
45
47
45
48
46
48
44
46
42
44
40
(*) With condensation pressure control (optional), 0 ºC minimum outdoor operating temperature
DEPENDING ON MODEL
(TABLE 1)
MODELS WITH REFRIGERANT R-22
1.5.- UNIT DIMENSIONS
1.- GENERAL CHARACTERISTICS
6
Detail drawing of
unit anchor support
25
60
40
25
80
50
20 x12
Oval hole
Control panel connection
Power supply connection
Drainage
outside thread
3/4'' Male
Electrical box
Unit anchor
support
820
349
27
303
333
25
123
6
SIDE A
SIDE B
830
324
27
355
333
25
123
6
SIDE A
SIDE B
UNITES MODEL 10-12
UNIT MODEL 16
711,6
721,6
SIDE A
SIDE B
Distance between holes
MODELS 10-12: 1300 mm
MODEL 16 = 1350 mm
184 452
425 32
1250
495
249 422
500 32
1300
595
Indoor unit
electrical
connection
Control panel connection
Power supply connection
Drainage
outside thread
3/4'' Male
Electrical box
Unit anchor
support
Connection pipes
Connection pipes
Connection pipes
7
1.5.- UNIT DIMENSIONS
1.- GENERAL CHARACTERISTICS
Detail drawing of
unit anchor support
25
60
40
25
80
50
20 x12
Oval hole
Distance between holes1500
900
900
324 92
SIDE A
SIDE B
47
355
25
300 30
SIDE C
SIDE D
UNIT MODEL 22
SIDE A
SIDE B
SIDE D
SIDE C
Liquid pipe
Gas pipe
1450
595
262 462
497 36,5
1450
595
791
Control panel
connection
Power supply
connection
Drainage
outside thread
3/4'' Male
Electrical box
Unit anchor
support
Indoor unit
electrical
connection
Connection pipes
Connection pipes
Indoor unit
electrical
connection
8
1.5.- UNIT DIMENSIONS
1.- GENERAL CHARACTERISTICS
Detail drawing of
unit anchor support
25
60
40
25
80
50
20 x12
Oval hole
1025
103
SIDE A
SIDE B
25
355
1025
SIDE C
SIDE D
677
537
124
SIDE A
SIDE B
SIDE C
SIDE D
UNITES MODEL 24-28-30
916
490 398
1500
645
410
1500
645
76
Liquid pipe
Gas pipe
Control panel
connection Power supply
connection
Drainage
outside thread
3/4'' Male
Electrical box
Unit anchor
support
Distance between holes1550
Connection pipes
Indoor unit
electrical
connection
Indoor unit
electrical
connection
1.- GENERAL CHARACTERISTICS
9
A1A0
B0 B1
A1A0
B0 B1
A0
A1
B0
B1
A0
A1
B0
B1
1.6.- UNIT OPENING SIZES
ELECTRICAL BOX
STANDARD CONFIGURATION
OPTIONAL CONFIGURATION
UNITS MODELS 10-12
UNIT MODEL 16
ELECTRICAL BOX
STANDARD CONFIGURATION
OPTIONAL CONFIGURATION
STANDARD
EXTRACTOR
OPENING
OPTIONAL
EXTRACTOR
OPENING
STANDARD
BLOWER
OPENING
OPTIONAL
BLOWER
OPENING
STANDARD
EXTRACTOR
OPENING
OPTIONAL
EXTRACTOR
OPENING
STANDARD
BLOWER
OPENING
OPTIONAL
BLOWER
OPENING
C.E.
452 269
452184
C.E.
422 304
422249
COIL
COMPRESSOR
FAN
C.E.
COIL
COMPRESSOR
FAN
C.E.
170 303
349
495
349
495
303
38
368
425
495
425
495
123
43
43
355
324
595
324
595
355
58
428
123
213
500
595
500
595
63
63
10
1.- GENERAL CHARACTERISTICS
1.6.- UNIT OPENING SIZES
ELECTRICAL BOX
STANDARD CONFIGURATION
OPTIONAL CONFIGURATION
ELECTRICAL BOX
STANDARD CONFIGURATION
OPTIONAL CONFIGURATION
STANDARD
EXTRACTOR
OPENING
OPTIONAL
EXTRACTOR
OPENING
STANDARD
BLOWER
OPENING
OPTIONAL
BLOWER
OPENING
STANDARD
EXTRACTOR
OPENING
OPTIONAL
EXTRACTOR
OPENING
STANDARD
BLOWER
OPENING
OPTIONAL
BLOWER
OPENING
C.E.
A0
A1
B0
B1
A0
A1
B0
C.E.
B1
COIL
COMPRESSOR
FAN
COIL
COMPRESSOR
FAN
UNIT MODEL 22
UNITS MODELS 24-28-30
A1A0
B0 B1
A1A0
B0 B1
355
324
595
324
595
355
391,5
92
193
497
595
497
595
61
61
193
355
410
645
410
645
355
537
40
645
214
214
103
103
537
645
462 384
462262
677 222 677
40
174
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22
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