Lennox MiniAir 10 Installation guide

Providing indoor climate comfort
MINIAIR / MINIAIR +
MINIAIR-IOM-0507-E
Installation, operating
and maintenance

IOM / MINIAIR-0507 1
SYMBOLOGY
ATTENTION
DANGER
a) HIGH RISK OFELECTRIC SHOCK
b) ATTENTION: AUTHORIZED PERSONNEL ONLY

2 IOM / MINIAIR-0507
INDEX
MiniAir
SECTION 1–PRESENTATION
1.1 Manual Presentation page 4
1.2 Unit Identification page 4
SECTION 2–TECHNICAL CHARACTERISTICS
2.1 Unit dimensions page 5
2.2 Unit technical data page 6
SECTION 3–TRANSPORTATION
3.1 Packing page 6
3.2 Transportation page 6
3.3 Checklist page 6
3.4 Storing page 6
SECTION 4–INSTALLATION &CONNECTION
4.1 Definition page 7
4.2 Safety Regulations page 7
4.3 Preliminary operations page 8
4.4 Choosing installation position page 8
4.5 Connecting accessories page 8
4.6 MINIAIR unit positioning page 9
4.7 Duct connection page 10
4.8 Hydraulic connection page 10
4.9 Electrical connections page 11
SECTION 5–PRE START CHECKLIST
5.1 Checks prior to initial Start-up page 12
SECTION 6–STANDARD MAINTENANCE
6.1 Monthly maintenance page 12
6.2 Yearly maintenance page 13
SECTION 7–TROUBLESHOOTING
7.1 Finding faults page 13
SECTION 8–SPARE PARTS
8.1 Spare part order page 14
SECTION 9–MATERIAL DISPOSAL
9.1 Material disposal page 14
MiniAir +
SECTION 10 –PRESENTATION
10.1 Manual presentation page 15
10.2 Machine identification page 15
SECTION 11 –TECHNICAL CHARACTERISTICS
11.1 General characteristics page 15
11.2 Accessories page 15
11.3 Packing dimensions page 16
11.4 Unit technical data page 17
11.5 Accessories technical data page 18
11.6 Possible positioning page 19
11.7 By-pass for de-frosting or free-cooling page 21

IOM / MINIAIR-0507 3
SECTION 12 –TRANSPORTATION
12.1 Packing page 21
12.2 Transportation page 22
12.3 Checklist page 22
12.4 Storing page 22
SECTION 13 –INSTALLATION &CONNECTION
13.1 Definition page 22
13.2 Safety regulations page 22
13.3 Preliminary operations page 23
13.4 Choosing place of installation page 23
13.5 Machine positioning page 24
13.6 Duct connection page 25
13.7 Hydraulic connection page 26
13.8 Electrical connection page 27
13.9 Installation of CVU & PCU accessories page 27
SECTION 14 –ELECTRICAL SCHEMES
14.1 MINIAIR+ 03-06 direct connection page 29
14.2 MINIAIR+ 03-06 connection with CVU speed control page 29
14.3 MINIAIR+ 03-06 connection with SKE & PCU control panel page 30
14.4 MINIAIR+ 10-14-19-25 direct connection page 30
14.5 MINIAIR+ 10-14-19-25 connection with CVU speed control page 31
14.6 MINIAIR+ 10-14-19-25 connection with SKE & PCU control panel page 31
14.7 MINIAIR+ 30 direct connection page 32
14.8 MINIAIR+ 30 connection with CVU speed control page 32
14.9 MINIAIR+ 30 connection with SKE & PCU control panel page 33
14.10 MINIAIR+ 40 direct connection page 33
14.11 MINIAIR+ 40 connection with CVU speed control page 34
14.12 MINIAIR+ 40 connection with SKE & PCU control panel page 34
SECTION 15 –PRE-START CHECKLIST
15.1 Checks prior to initial start-up page 35
SECTION 16 –STANDARD MAINTENANCE
16.1 Monthly maintenance page 35
16.2 Yearly maintenance page 36
SECTION 17 –TROUBLESHOOTING
17.1 Localisation of breakdowns page 37
SECTION 18 –MATERIAL DISPOSAL
18.1 Material disposal page 37

4 IOM / MINIAIR-0507
MINIAIR
SECTION 1–PRESENTATION
1.1 Manual Presentation
This instruction manual supplies the necessary information for the transportation, the installation, operation and
maintenance of the MINIAIR apparatus as supplied by the company LENNOX (from this point named as the supplier).
It supplies the user with as much information as is normally useful for a correct and secureinstallation of the unit.
Lack of observation of the details found within this manual, and an inadequate installation of the MINIAIR may cause the
withdrawal of the warranty supplied with the equipment.
Furthermore, the Supplier will not respond to any eventual damage, whether direct or indirect, caused by the incorrect
installation, or for damages caused by the installation being effectuated by inexperienced or unauthorised personnel.
Verify, upon acquisition, that the apparatus is complete and supplied as described.
Any eventual disputes must be presented in writing within 8 days from the reception of the goods.
1.2 Unit Identification
The MINIAIR Unit is provided with identification plate listing the following:
-Address of Constructor;
-“CE” Mark;
-Model;
-Serial Number;
-Maximum absorbed current “A”;
-Power supply voltage “V”;
-Power supply frequency “Hz”;
-Number of phases “Ph”;
-Date of fabrication;
-Unit Code.

IOM / MINIAIR-0507 5
SECTION 2–TECHNICAL FEATURES
2.1 Unit Dimensions
Model 10 20 25 30 40 50 60
2) W 710 1070 1400 1400 1680 1780 2000
L 390 390 390 390 390 480 480
H 850 850 850 850 850 960 960
 2 R ¾” ¾” ¾” ¾” ¾” 1” 1”
4 R ¾” ¾” 1” 1” 1” 1 ¼” 1 ¼”
6 R ¾” 1” 1” 1” 1 ¼” 1 ¼” 1 ¼”
1 20 20 20 20 20 20 20
X1 240 306 240 240 306 306 306
3) Y1 216 270 216 270 270 270 270
X2 - - 318 318 418 435 -
X3 - - - - - - 285
A1 670 1030 1360 1360 1640 1720 1940
A2 350 350 350 350 350 420 420
X 235 382 301 301 325 366 256
Y 136 82 136 82 82 160 160
Weight 5260 6070 7588 7890 96110 101120 120140

6 IOM / MINIAIR-0507
2.2 Unit technical data
Model 10 20 25 30 40 50 60
Airflow rate m3/h 1040 2150 2740 3360 3950 5070 6450
External static pressure () Pa 150 150 150 150 150 150 150
1 m sound pressure level dB (A) 52 55 55 57 58 57 59
Motor power W 147 350 2 x 350 2 x 350 2 x 350 2 x 420 3 x 420
Max. current A 1,9 3,0 2 x 3,0 2 x 3,0 2 x 3,0 2 x 3,8 3 x 3,8
Fan speeds 3 3 3 3 3 3 3
Protection grade IP 20 55 55 55 55 20 20
Isolation Class B F F F F B B
Electrical power supply V/ph/Hz 230 / 1 / 50
Model 10 20 25 30 40 50 60
N° G3 filter cells (356x293x48) 2 3 4 4 5 5 6
N° F6 filter cells (356x293x320) 2 3 4 4 5 5 6
() 4 row coil version at nominal airflow rate
SECTION 3–TRANSPORTATION
3.1 Packing
The MINIAIR units and their accessories are provided with adequate packing, that must stay intact until the moment of
installing.
The materials that are not required for technical motives are supplied in fitted packing fixed externally and internally to
the unit.
3.2 Transportation
For the lifting and transportation of the unit, use adequate equipment, according to the 89/391/CEE regulations and
successive modifications.
Each individual machine weight is listed in this manual.
Avoid any uncontrolled rotation.
3.3 Checklist
Upon reception of the apparatus, we suggest that a complete control is carried out, to verify that the unit is intact and
complete, and no damage has been sustained during transport. Any eventual damage revealed must be communicated
to the carrier, demonstrating the reserve clause within the transport documents, specifyingthe type of damage.
3.4 Storing
In case of long term storage, the apparatus must be kept free from dust, and away from areas susceptible to heat and
vibration.
The manufacturer declines any responsibility for any damage as a result of negligence or lack of protection from
atmospheric agents.

IOM / MINIAIR-0507 7
SECTION 4–INSTALLATION &CONNECTION
4.1 Definition
CLIENT–The client is the person, activity or the society, that has bought or hired the apparatus, and intends to utilise the
machinery for its intended use.
USER / OPERATOR –The User or Operator, is the actual person that has been authorised by the client to utilise the
apparatus.
TECHNICIAN –Defined as the person who has followed a relevant/specific course of study, and so is able to understand
the dangers derived from the use of the apparatus, and in turn, due to this, are capable of solving major dilemmas.
4.2 Safety Regulations
Qualified personnel must carry out the installation.
During the installation operation, use protective clothing, for example: glasses, gloves, etc. as indicated by
686/89/CEE and successive regulations.
During the installation operate in absolute security, pollution free air and in an area free of obstructions.
Respect the regulations in force in the country in which the apparatus is being installed. Specifically relative to
its use, and to the disposal of packing and products used for the cleaning and maintenance of the unit. Respect
the recommendations given by the producers of such products.
Before placing in function the unit, check the perfect connection of the various components and the internal
parts of the system.
Avoid at all costs human contact with moving parts and contact with the parts themselves.
Do not commence with servicing or cleaning of the unit, before the unit has been disconnected from the
main supply.
The maintenance and the substitution of damaged or consumed parts must be carried out only by specialised
personnel, following the indications found within this manual.
The Manufacturer declines any responsibility for
failure to respect the Safety Regulations, and the
prevention as described below.
Furthermore, the manufacturer declines any
responsibility for damage caused by the improper
use of the unit and/or modifications carried out
without proper authorisation.
Min 400 mm
Min 100 mm

8 IOM / MINIAIR-0507
Spare parts must correspond to the requirements specified by Manufacturer.
In case of dismantling of the unit, respect the anti-pollution regulations in force.
N.B. The installer and the user of the apparatus must take into account, and solve problems, connected with any other
type of risk that may occur to the unit. For example, risks derived from the entrance of foreign bodies, or risks due to the
presence of flammable or toxic gas.
4.3 Preliminary Operations
Check the perfect condition of the various components of the unit.
Control that contained within the packing, there are the installation accessories, and documentation.
Transport the packed section as close as is possible to the intended place of installation.
Do not place tools or weight on top of the packed unit.
4.4 Choosing installation position
Position the unit on a solid structure, that will not vibrate, and is capable supporting the weight of the machine.
Position the unit in a point where the condensation discharge may occur easily.
Do not position the unit in an area in which flammable gases, acidic or corrosive substances are present. They
may damage various components in an irreparable manner.
Allow a minimum amount of free space as indicated in the figure. This permits ease of installation and
maintenance.
4.5 Connecting accessories
1. Fix the angular fixing clamp
2. Place together the fixing modules
3. Pass the M8 x 25 screws through the adjacent holes and necessary washers (see diagram)
4. Screw the nut by hand
5. Tighten with an Allen key