Lennox SNE 2, 8K, SNE 3K, SNE 4K Installation Manual
1
PRODUCT RANGE
UNIT V / Ph / 50 Hz
NOMINAL
CAPACITY W
10.700
13.600
3,18
3,82
400 V - 3Ph
230 V - 3Ph
400 V - 3Ph
NOMINAL
CONSUMPTION KW
230 V - 1Ph
230 V - 3Ph
230 V - 1PhSNE 2,8K
8.300 2,68
SNE 4K
SNE 3K
CONTENTS
• PRODUCT RANGE
• GENERAL DESCRIPTION
• SPECIFICATIONS
• ELECTRICAL CONNECTIONS
• FANS SPECIFICATIONS
• FUNCTION LIMITS
• TABLE OF CAPACITIES
• CONSUMPTION AND DROP WATER
• UNIT DIMENSIONS
• INSTALLATION
• MAINTENANCE OF THE UNIT
• OPTIONS
• POINTS TO KEEP IN MIND
• NOTES
PAGE
1
2
3
4
5
5
6
7
8
9
10
11
12
13-14
TABLE
Congratulations, you have made a wise choice the purchase of this product. This product
has been designed, assembled and supplied in one of our world class manufacturing
facilities and we feel that it will meet your expectations.
GENERAL INFORMATION
The air conditioner, horizontal compact, water condensed type SNE, are specially design for small and average
installation, office, house etc..
On standard version cools, heats, dehumidifies, cleans and filter the air. The option of easily incorporating an
electric heater or hot water coil to be able to work as heating
The unit includes condenser plate, compact and
resistant made on inoxidable steel, specially selected
for this type of unit.
The cabinet is made of electrozinced steel with epoxy
painted finish and finished on polyester powder. Its
compact dimensions and features allow the unit to
be positioned in almost any location.
Internally the unit incorporate thermal acoustic
insulation to reduce sound level.
Made of copper tubing with aluminium swirl fins, they
are designed and specially dimensioned to obtain
the maximum output
The units include a centrifugal three speed motor fan,
with a motor directly fitted, with high performance on
air flow.
A polypropylene washable air filters are incorporated
in the unit they are easy accessible for maintenance
• Electrical heater mounted on fan discharge.
• Hot water coil.
• Presostatic valves regulating water flow
• Discharge plenum
• Admission plenum
• Digital thermostat programmable.
COMPRESSOR
CONDENSER
AIR FILTER
COOLING CIRCUIT
HEAT EXCHANGER
CABINET
FAN
OPTIONS
Made of welded dehumidifying copper tube with
access connections. Includes dehydrator filter, liquid
recipient expansion system and high and low
pressostat on all models
The electrical panel includes a printed board,
necessary for installation, and plate circuit board
ready to control the unit, which incorporates defrosting
timer thermostat. The power supply of the unit may
turn be off by a fusses block on the electrical box.
The function of the unit is controlled by cable
thermostat.
Digital remote controller by cable at 24V, digital
selector temperature which permit to choose the
following function:
• Selection ON/OFF
• Three functions mode: cool, heat and fan operating.
• Two options fan operating: AUTO (automatic) which
Select turn on and stop automatically fan mode
temperature. On mode ON the fan doesn´t stop
even when temperature is selected.
• Selector three steps fan.
REMOTE CONTROL
One compressor of the hermetically sealed type
cooled with internal thermal insulation. It is mounted
on vibration-absorbent blocks both on the inside and
outside, statically and dynamically balanced. In all
cases the compressors are acoustically isolated,
resulting in silent operation.
ELECTRICAL CIRCUIT
2
3
m /h
3
230V /1Ph
230V / 400V 3Ph
NOMINAL ABSORBER POWER
Kw.
Compressor
Indoor fan
RUNNING CURRENT
A
Nominal running current
TOTAL
Kw.
Kw.
14,0
2,78
0,40
3,18
9,5/5,5
A
VOLTAGE
17,4
Maximum running current
18,0
16,0/10,0
23,0
A
91
78 / 39
90
Starting current
3,42
0,40
3,82
11,5/6,8
20,0/12,0
106 / 53
2,50
0,18
2,68
SPECIFICATIONS
Total cooling capacity
Nominal absorber power
Chilled water flow rate
Chilled water pressure drop
Hydraulic connections
Sound level (LP)(2)
Dimensions
Kw
l/h
W (*)
KPa
dB(A)
(mm)
H
Large
W
(mm)
(mm)
SNE 4K SNE 3K
Air flow (max./min.)
Pa
Available static power. (1)
Net weight
Kg
13.600
3,82
SNE 4K
80
SNE 3K SNE 2,8K
3000
16
120
53
1125
635
515
2050/1450
1" G
SNE 2,8K
10.700
3,18
100
2390
30
110
52
1125
635
515
2050/1100
3/4" G
8.300
2,68
120
1885
24
100
50
1125
635
515
1800/950
3/4" G
(*) Inlet air temperature: 27ºC DB / 19ºC WB
Inlet/Outlet water temperature: 30ºC / 35ºC
(1) With minimum air flow admissible
(2) Sound level has been tested at a distance of 2m from the unit.
UNIT
ELECTRICAL SPECIFICATIONS
4
ELECTRICAL CONNECTIONS
E G HA B C D F
1 4 6 75 82 3 9 10 11
12 13
THERMOSTAT
PCB (Electronic)
Supply power
SNE 2,8K-3K-4K
400V/50HZ 3Ph + N + PE
FUSES
230V/50HZ 1Ph + N
FUSES
FUSES
230V/50HZ 3Ph
1
2
1
2
2
6 X 1,5mm
2
6 X 1,5mm
2
6 X 1,5mm
2
6 X 1,5mm
2
6 X 1,5mm
2
6 X 1,5mm
Power supply
Thermostat connections
1
2
2
3 X 4mm
2
4 X 6mm
2
5 X 4mm
2
3 X 4mm
2
4 X 4mm
2
5 X 2,5mm
MODEL
VOLTAGE
50Hz
SNE 2,8K
Nº OF CABLES X SECTION
230 V / 1Ph
SNE 3K
230 V / 1Ph
230 V / 3Ph
400 V / 3Ph
SNE 4K
230 V / 3Ph
400 V / 3Ph
ELECTRICAL WIRING DIAGRAM
FOR ELECTRICAL CONNECTION
REFER TO WIRING DIAGRAM IN
THE UNIT
5
FAN SPECIFICATIONS
HIGH SPEED
AVERAGE SPEED
LOW SPEED
HIGH SPEED
AVERAGE SPEED
LOW SPEED
HIGH SPEED
AVERAGE SPEED
LOW SPEED
m /h
3
Unit leaves factory connected in AVERAGE and HIGH Speed.
m /h
3
Unit leaves factory connected in AVERAGE and LOW Speed
m /h
3
Unit leaves factory connected in HIGH and AVERAGE Speed.
80
100
120
1400
20 40
60
--- --- ---
---
SNE 2,8K
------ --- ---
1250 12251200
1150 ---1075 950 ---
1800 16501550
1425 97513001150 ---
80
100
120
1400
20 40
60
1840 17001575
1375
SNE 3K
---1275 --- ---
2000 18501700
1550 ---13751100 ---
2050 19251775
1625 ---14501250 ---
80
100
120
1400
20 40
60
1840 17001575
---
SNE 4K
------ --- ---
2000 18501700
1550 ------ --- ---
2050 19251775
1625 ---1450 --- ---
AIR FLOW
AVAILABLE STATIC PRESSURE
Pa.
AIR FLOW
AVAILABLE STATIC PRESSURE
Pa.
AIR FLOW
AVAILABLE STATIC PRESSURE
Pa.
WB.: Temperature Wet bulb
DB.: Temperature Dry bulb
OPERATING LIMITS
-- /21ºC
32ºC / 38ºC
19°C / 14ºC 32°C / 23ºC
Inlet/outlet water
temperature to outdoor
section
Inlet air temperature to indoor section DB/ WB
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