Lennox ASC Series User manual

www.lennoxemea.com
ASC/ASH
20 - 230 kW
AIR COOLED CONDENSING UNIT
INSTALLATION, OPERATING
AND MAINTENANCE
MIL152E-1217 01/2019

• 1 •
2
3
1 -
1.1 4
1.2 5
1.3 6
1.4 6
1.5 7
1.6 11
2 -
2.1 12
2.2 12
2.3 13
2.4 13
2.5 14
2.6 15
2.7 19
2.8 21
2.9 22
3 -
3.1 23
3.2 24
4 -
4.1 25
4.2 25
4.3 26
ASC/ASH
Installation, Operation and Maintenance manual • ASC/ASH-MIL152E-1217-01/2019
WARNING: Read this manual before carrying out installation, repair or maintenance work.
All the technical and technological information contained in this manual, including any drawings and technical descriptions provided by us, remain
the property of Lennox and must not be utilised (except in the operation of this product), reproduced, issued to or made available to third parties
without the prior written agreement of Lennox.
INSTALLATION
OPERATION
MAINTENANCE MANUAL
TABLE OF CONTENTS
POINTS TO BEAR IN MIND
DATA PAGE FOR COMMISSIONING OF THE UNIT
GENERAL CHARACTERISTICS
Physical data
Electrical data
Fan performance
Operating limits
Piping drawings
Unit dimensions
INSTALLATION
Preliminary preparations
Unit acceptance
Unit location
Installation clearances
Inside location
Refrigerant connections
Electrical connections
Dry contact board control
Options installation
COMMISSIONING AND OPERATION
Preliminary checks before first installation
Preliminary checks at first installation
MAINTENANCE
Preventive maintenance
Corrective maintenance
Fault diagnosis

• 2 • Installation, Operation and Maintenance manual • ASC/ASH-MIL152E-1217-01/2019

• 3 • Installation, Operation and Maintenance manual • ASC/ASH-MIL152E-1217-01/2019
ELECTRICAL CONNECTIONS
Make sure to switch off the power before installing, repairing or carrying out maintenance on the unit,
in order to prevent serious electrical injury.
Keep local and national legislation in mind when installing 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 maintenance and management
personnel.
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.
The manufacturing of these units is made under the requirements of the ISO 9001 and ISO 14001.
DANGER AND WARNING SIGNS
Abrasive surfaces Low temperatures High temperatures Risk of injury from
moving objects Electrical voltage Risk of injury from rotating objects
POINTS TO BEAR IN MIND

• 4 • Installation, Operation and Maintenance manual • ASC/ASH-MIL152E-1217-01/2019
DATA PAGE FOR UNIT COMMISSIONING
COOLING CYCLE
Air intake temperature to the outdoor
coil: 1ºC
2ºC
Air output temperature to the
outdoor coil: 1ºC
2ºC
High pressure: Circuit 1
Circuit 2
Low pressure: Circuit 1
Circuit 2
HEATING CYCLE
Air intake temperature to the outdoor
coil: 1ºC
2ºC
Air output temperature to the
outdoor coil: 1ºC
2ºC
High pressure: Circuit 1
Circuit 2
Low pressure: Circuit 1
Circuit 2
YES NO
Unit on shock absorbers
Drainage with trap
Main power supply connection
Control panel connection
Compressor oil level indicator
DATA INPUT:
ELECTRIC POWER CONSUMPTION (Amps)
Compressor 1:. . . . . . . . . . . . . . . . . . .
Compressor 2 : . . . . . . . . . . . . . . . . . .
Compressor 3 : . . . . . . . . . . . . . . . . . .
Outdoor fan section 1 . . . . . . . . . . . . .
Outdoor fan section 2 . . . . . . . . . . . . .
Compressor 1:. . . . . . . . . . . . . . . . .
Compressor 2 : . . . . . . . . . . . . . . . .
Compressor 3 : . . . . . . . . . . . . . . . .
Outdoor fan section 1 . . . . . . . . . . .
Outdoor fan section 2 . . . . . . . . . . .
UNIT: ___________________________________________ SERIAL NUMBER :___________________________________
CONTROL PANEL IDENTIFICATION CODE : _________________________________________________________________
INSTALLATION ADDRESS: _______________________________________________________________________________
INSTALLER : _____________________________________ INSTALLER TEL : ____________________________________
INSTALLER ADDRESS :__________________________________________________________________________________
______________________________________________________________________________________________________
COMMISSIONING DATE : ________________________________________________________________________________
CHECKS : _____________________________________________________________________________________________
______________________________________________________________________________________________________
SUPPLY VOLTAGE :_______________________________ RATED VOLTAGE OF THE UNIT : _______________________
Options installed : ____________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________
Comments :_________________________________________________________________________________
___________________________________________________________________________________________
___________________________________________________________________________________________

• 5 •
A S C 020 S N M 3 M
ASC/ASH 100D 120D 140D 200D 230D
22344
632 797 906 1659 1679
748 828 932 1684 1704
9 9 9 n/a n/a
40 40 40 80 80
22700+18100 22700+18100 22700+22700 28600+28600 36000+36000
ASC/ASH 040S 045D 055D 070D 085D
12222
255 443 452 481 520
258 452 463 499 537
36666
N/A
11000 9750+9750 11500+11500 11300+11300 11000+11000
ASC/ASH 020S 025S 030S 035S
1
255 443 452 520
258 452 463 537
3666
N/A
6800 9750 11500 11300
- - -
Installation, Operation and Maintenance manual • ASC/ASH-MIL152E-1217-01/2019
1. GENERAL CHARACTERISTICS
1.1.- PHYSICAL DATA
ASC/ADC: Cooling only unit R-410A.
ASH/ADH: Heat pump unit R-410A.
(*) The units are supplied with nitrogen gas; this must be removed and the unit charged with refrigerant R-410A, depending on unit
model.
(See page 21 to calculate refrigerant charge for model ASC/ADC and ASH/ADH units to work with Air treatment units).
R-410A factory refrigerant precharge kit is available as an option.
Air cooled
condensing unit C: Cooling only H: Heat pump Type of refrigerant M: R-410A
Approximate cooling
capacity in kW
S: Outdoor unit Split
S: One Circuit
D: Two Circuits
Number
of revision
M: 400V/3/50
MODELS
Type of compressor Scroll
Number of compressors
Net weight
Cooling only unit
ASC/ADC
kg
Heat pump unit
ASH/ADH
Optional Soft starter
Optional FP1
Air flow m3/h
Refrigerant charge NITROGEN (*)
MODELS
Type of compressor Scroll
Number of compressors
Net weight
Cooling only unit
ASC/ADC
kg
Heat pump unit
ASH/ADH
Optional Soft starter
Optional FP1
Air flow m3/h
Refrigerant charge NITROGEN (*)
MODELS
Type of compressor Scroll
Number of compressors
Net weight
Cooling only unit
ASC/ADC
kg
Heat pump unit
ASH/ADH
Optional Soft starter
Optional FP1
Air flow m3/h
Refrigerant charge NITROGEN (*)
n/a: not available
n/a: not available
Units valid for combine with air treatment units

• 6 •
3/400V/50Hz
2,00 / 6,20 2,00 / 6,20 1,00 / 5,2 5,8 / 14,2 2 / 10,4
3,2 / 9,8 3,2 / 9,8 1,6 / 8,2 9,6 / 22,8 3,2 / 16,4
3,2 / 9,8 3,2 / 9,8 1,6 / 8,2 9,6 / 22,8 3,2 / 16,4
020S 025S 030S 035S 040S 045D 055D
3N~400V
50Hz 3~400V 50Hz
8,25 10,1 11,8 15,6 16,9 20,2 23,6
0,3 0,69 0,69 0,84 0,84 1,38 1,38
8,55 10,79 12,49 16,44 17,74 21,58 24,98
15 21 22 25,6 31 42 44
1,6 3 3,4 3,4 3,4 6 6,8
16,6 24 25,4 29 34,4 48 50,8
87,5 97,4 104 138 17,2 121 129
070D 085D 100D 120D 140D 200D 230D
3~400V 50Hz
31,1 33,8 42,6 45,6 55,9 78,8 88,2
1,68 1,68 3,05 3,05 4 4,2 8
32,78 35,48 45,65 48,65 59,9 83 96,2
51,2 62 77,6 84 102 142 159
6,8 6,8 6,4 6,4 8 9,6 16
58 68,8 84 90,4 110 151,6 175
167 206 221 228 292 302,9 358
Installation, Operation and Maintenance manual • ASC/ASH-MIL152E-1217-01/2019
1.2.- ELECTRICAL DATA
ELECTRICAL CONSUMPTION FOR STANDARD UNITS
ADDITIONAL ELECTRICAL CONSUMPTION FOR THE OPTIONS
MODELS
ASC/ASH
Voltage Ph/V/Hz
Maximum absorbed power (kW)
Compressor
Fan
Total power
Maximum current (A)
Compressor
Fan
Total current
Start up current (A)
MODELS
ASC/ASH
Voltage Ph/V/Hz
Maximum absorbed power (kW)
Compressor
Fan
Total power
Maximum current (A)
Compressor
Fan
Total current
Start up current (A)
FP1 OPTION
ASC/ASH
100D FP1
(Low Speed/
High speed)
120D FP1
(Low Speed/
High speed)
140D FP1
(Low Speed/
High speed)
200D FP1
(Low Speed/
High speed)
230D FP1
(Low Speed/
High speed)
Voltage Ph/V/Hz
Maximum absorbed power kW
Maximum current A
Start up current A
1. GENERAL CHARACTERISTICS

• 7 •
(*) DB:
(**) WB:
100D - 120D - 140D 200D 230D
24
50
19000 + 19000 28000 + 28000
510
75
18000 + 18000 24000 + 24000
5,1 10.2
100
17000 + 17000 22000 + 22000 N/A
5,2 10,4 N/A
125
15000 + 15000 20000 + 20000 N/A
5,3 10,6 N/A
100D - 120D - 140D 200D - 230D
24
50
22000 + 22000 34000 + 34000
9,2 18,4
100
20000 + 20000 28000 + 28000
9,3 18,6
125
18000 + 18000 24000 + 24000
9,4 18,8
45ºC
(20S-25S-30S-45D-55D)
-------------
47ºC
(35S-40S-70D-85D-100D-120D-140D)
20S-25S-30S-45D-55D)
-------------
47ºC
(35S-40S-70D-85D-100D-120D-140D)
32ºC DB
23ºC WB
32ºC DB
23ºC WB
27ºC DB
21ºC DB
15ºC WB
21ºC DB
15ºC WB
-10ºC DB
-11ºC WB
15ºC DB
Installation, Operation and Maintenance manual • ASC/ASH-MIL152E-1217-01/2019
1.3.- FAN PERFORMANCES
1.3.1.- CONDENSING UNIT WITHAVAILABLE HIGH PRESSURE FAN (OPTION)
1.4.- OPERATING LIMITS (For installation with air treatment units. Example)
With low temperature 0ºC kit (option) Dry bulb temperature.
With option kit low temperature -15ºC or kit -15ºC and low noise level. Wet bulb temperature
Air flow data / FP1 option / Low speed.
Air flow data. FP1 option. High speed.
MODELS
Fan type Axial “short case” - direct coupling
900 r.p.m. (Low speed) 3~400V
Fan number
Available static pressure
(Pa)
Airflow rate m3/h
Absorbed power kW
Airflow rate m3/h
Absorbed power kW
Airflow rate m3/h
Absorbed power kW
Airflow rate m3/h
Absorbed power kW
MODELS
Fan type Axial “short case”-direct coupling
1450 r.p.m. (High speed) 3~400V
Fan number
Available static pres-
sure Pa,
Airflow rate m3/h
Absorbed power kW
Airflow rate m3/h
Absorbed power kW
Airflow rate m3/h
Absorbed power kW
n/a: Not available
1. GENERAL CHARACTERISTICS
COOLING ONLY UNITS Maximum temperatures Minimum temperatures
Cooling cycle operation
Indoor temperature
Outdoor temperature +10ºC STANDARD UNIT
(*) / (**)
HEAT PUMP UNITS Maximum temperatures Minimum temperatures
Cooling cycle operation
Indoor temperature
Outdoor temperature 0ºC
Heating cycle operation
Indoor temperature
Outdoor temperature Depending on model
(See tables for heating capacities)

• 8 •
HP1
DS HP2
SVL1 CH1
SVL3 CH3
LPT1 HPT1
LPT2 HPT2
OS
ASC 020S/025S/030S/035S/040S
SVL1
LP1 HP1 PT1
(ELEMENTO OPCIONAL)
C1
CH1
DS
HPT1
LPT1
(ELEMENTO OPCIONAL)
055D/070D/085D
DS
SVL3
C2
LP2
CH3
HP2 PT2
SVL1
C1
LP1
CH1
HP1 PT1
ASC 045D/055D/070D/085D
OS
HPT1
LPT1
LPT2 HPT2
Installation, Operation and Maintenance manual • ASC/ASH-MIL152E-1217-01/2019
1.5.- PIPING DRAWINGS
COOLING ONLY UNITS
AIR TREATMENT UNIT. EXAMPLE CONDENSING UNIT
OPTION ELEMENT
Scroll compressor
Fan
Expansion valve Filter drier
Service valve option
Service valve option
Fan motor
Coil
Suction accumulator (long distance connection option).
Coil
AIR TREATMENT UNIT. EXAMPLE CONDENSING UNIT
OPTION ELEMENT
Scroll compressor
Scroll compressor
Fan
Coil
Expansion
valve
Expansion valve
Filter drier
Filter drier
Service valve option
Suction accumulator (long distance connec-
tion option).
Suction accumulator ( long distance connec-
tion option).
Fan motor
Coil
Fan motor
Coil
Service valve option
Service valve option
Service valve option
1. GENERAL CHARACTERISTICS
Pressure gauge (5/16” to be fitted by the installer) High pressure switch, circuit 1
Discharge sensor High pressure switch, circuit 2
Liquid solenoid valve. (long distance option)
To be connected by the installer to air treatment unit. Crankcase heater (Low ambient option)
Crankcase heater (Low ambient option)
Low pressure switch, circuit 1 High pressure transducer, circuit 1
Low pressure transducer, circuit 2 High pressure transducer, circuit 2
Outdoor temperature sensor

• 9 •
C2
C1
CH3
CH2
CH1
ASC 100D/120D/140D
HPT1
LPT1
LPT2 HPT2
HP1
DS HP2
SVL1 CH...
SVL3 HPT1
LPT1 HPT2
LPT2 OS
Installation, Operation and Maintenance manual • ASC/ASH-MIL152E-1217-01/2019
1.5.- PIPING DRAWINGS
COOLING ONLY UNITS
Scroll compressor
Scroll compressor
Scroll compressor
AIR TREATMENT UNIT. EXAMPLE CONDENSING UNIT
OPTION ELEMENT
Fan Coil
Expansion valve
Expansion valve
Filter drier
Filter drier
Service valve option
Service valve option
Service valve option
Service valve option
Suction accumulator (Low ambient
-15ºC and low noise level option).
Suction accumulator (Low ambient -15ºC and
low noise level option).
Fan motor
Coil
Fan motor
Coil
Coil
1. GENERAL CHARACTERISTICS
Pressure gauge. (5/16” to be fitted by the installer) High pressure switch, circuit 1.
Discharge sensor High pressure switch, circuit 2.
Liquid solenoid valve. (long distance option)
To be connected by the installer to air treatment unit.
Crankcase heater (Low ambient option)
High pressure transducer, circuit 1
Low pressure switch, circuit 1 High pressure transducer, circuit 2
Low pressure transducer, circuit 2 Outdoor temperature sensor