AERMEC T 1 Handbuch
ITUY
0206
66210.13
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9707 / 66210.07
AIR HANDLING UNIT
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Tmodello:
model:
numero di serie:
serial number:
Bevilacqua, 1/1/2002 Direttore Marketing – Marketing Director
Luigi Zucchi
AERMEC S.p.A.
I-37040 Bevilacqua (VR) Italia – Via Roma, 44
Tel. (+39) 0442 633111
Telefax 0442 93730 – (+39) 0442 93566
The product subject to the present declaration must not be put into service before the system to which the product is mounted
has been declared as conforming to the requirements of the relevant Directive.
Declaration of Conformity
We, the signatories of the present document, hereby declare under our exclusive responsibility that the system conforms with the
requirements of the following Directives:
- Machine Directive 89/392 CEE and modifications 91/368 CEE - 93/44 CEE - 93/68 CEE;
- Low voltage directive 73/23 CEE.
Series T air handling unit
Technical, Installation and Maintenance Manual
page
3
Contents
1- General characteristics and nominal output page 3
2-Identification page4
3-Frames page5
4- Capacities page 5
5-Enclosure page6
6- Modularity and orientation page 6
7- Fans and motors page 10
8-Filters page10
9-Accessories page11
10- Special applications page 12
11- Operating limits page 12
12- Technical specifications page 13
13- Useful pressure for ducted units page 14
14- Capacity of non-ducted units page 18
15- Heat exchange coils page 19
16- Dimensions page 55
17-Weights page58
18-Installation page59
19- Use and Maintenance page 61
20- Warnings and safety standards page 62
21- Troubleshooting page 63
1- General characteristics and nominal output
The T series is the viable alternative to air handling units in the 3000 - 20000 m3/h
capacity range, when filtering, cooling and/or heating applications only are required in
civilian or industrial installations.
T series units can be integrated into a ducting system, and can be fitted with a various
types of delivery and return accessories.
Units can be installed horizontally or vertically, with air delivery and intake in several
directions.
Frames T 1 T 2 T 3 T 4 T 5 T 6 T 7
Air flow [l/s] 833 1111 1556 2111 3000 3889 5667
[m3/h] 3000 4000 5600 7600 10800 14000 20400
Cooling capacity (1) [kW] 2 row 8.8 12.7 17.6 23.6 33.5 38 69.9
3 row 12.6 17 24.4 32.6 45.6 53 81.4
4 row 15.6 20.6 30.2 39.8 56.6 68.1 98
6 row 20.1 25.8 38.1 53 76.1 95.3 137.8
Heating capacity(2) [kW] 2 row 20 26.9 37.8 50.8 71.9 98 150
3 row 26.8 35.6 50.4 67.7 95.5 129.3 190.4
4 row 32 42.3 60.1 80.6 114 154.2 224
6 row 39 51.4 73 99.3 141 188.9 274.7
(1) Intake air tbs 27°C tbu 19°C Water 7-12°C
(2) Intake air tbs 20°C Water 70-60°C
Series T air handling unit
Technical, Installation and Maintenance Manual
page
4
2- Identification
The unit is clearly defined by an identification code composed as follows:
1° T T series T
2° 1 nominal capacity frame 3000 m3/h
2 nominal capacity frame 4000 m3/h
3 nominal capacity frame 5600 m3/h
S 4 nominal capacity frame 7600 m3/h
T 5 nominal capacity frame 10800 m3/h
A 6 nominal capacity frame 14000 m3/h
N 7 nominal capacity frame 20400 m3/h
D
A 3° 6 conditioning section with 6 row coil
R 4 conditioning section with 4 row coil
D 3 conditioning section with 3 row coil
2 conditioning section with 2 row coil
U 0 no conditioning section
N
I 4° 4 heating section with 4 row coil
T 3 heating section with 3 row coil
2 heating section with 2 row coil
0 no heating section
5°6° GC return grille conditioning section
GR return grille heating section
RT return plenum without grille
RS return plenum with recirculation grille and full-section PAE damper
A RP return plenum with recirculation grille and part-section PAE damper
C RF return plenum with recirculation grille and damper with PAE opening
C RC return plenum with recirculation grille and closed damper
E RV return plenum with recirculation grille without side panel
S MO horizontal return plenum with 2 dampers
S MV vertical return plenum with 2 dampers
O OO no return accessory
R
I 7° M delivery plenum with twin-row blade port
E O no delivery plenum
S
8° P support feet
O no support feet
O 9° 1 vertical upper delivery
R 2 vertical front delivery
I 3 horizontal upper delivery
E 4 horizontal front delivery
N
T 10° A front intake
A I lower intake
T P rear intake
I
O 11° S left side connectors (with cooling coil upline of heating coil or with single coil)
N D right side connectors (with cooling coil upline of heating coil or with single coil)
A left side connectors (with heating coil upline of cooling coil)
B right side connectors (with heating coil upline of cooling coil)
N.B. For orientation data, refer to the diagrams on pages 9 and 10.
Example: a T series unit with 3 frame, comprising conditioning section and 6 row coil, return plenum with partial
external air intake damper and support feet, vertical arrangement and upper delivery, intake of the lower coil and right
side connectors (when facing the machine with electric motor to left and connectors to right (cf. figures on pages 9 and
10)) is identified by the code T3 60 RP 0 P 1ID, where:
U ----> T series unit
3 ----> Air capacity frame 3000 m3/h
6 ----> Conditioning section with 6 row coil
0 ----> No heating section
RP ----> Return plenum with grille and partial external air intake damper
0 ----> No delivery plenum
P ----> Support feet
Series T air handling unit
Technical, Installation and Maintenance Manual
page
5
1 ----> Vertical arrangement with upward delivery
I ----> Lower coil section intake
D ----> R.h. coil connectors
3- Frames
The unit comes in 7 frame sizes. The table below shows the section sizes composing the
unit.
Tab. 1
Frame T 1 T 2 T 3 T 4 T 5 T 6 T 7
Standard component dimensions
Width mm 1100 1350 1500 1900 1900 2560 2560
Fan and conditioning section height mm 650 650 740 740 870 870 1130
Fan and conditioning section length mm 650 650 740 740 870 870 1130
Heating section height mm 650 650 740 740 870 870 1130
Heating section length mm 350 350 350 350 350 460 460
Plenum height mm 390 390 460 460 600 600 600
Plenum length mm 650 650 740 740 870 870 1130
4- Capacities
Units capacity values are given in the diagram below, and are expressed in m3/h
corresponding to frontal speed on coil with 2 - 2.5 - 3 m/s.
0
2000
4000
6000
8000
10000
12000
14000
16000
18000
20000
22000
24000
1234567
Grandezz
a
2
2,5
3
N.B. The maximum frontal speed for conditioning applications is 2.6 m/s.
Series T air handling unit
Technical, Installation and Maintenance Manual
page
6
5- Enclosure
The unit enclosure comprises a frame with insulating panels.
The sandwich type panels are composed as follows:
- outer wall: plastic coated galvanised sheet metal, powder blue colour;
- internal wall: galvanised sheet metal;
- insulation: polyurethane foam;
- total panel thickness: 25 mm;
- delivery plenum with sound absorbent lining.
The aluminium alloy frame (with natural aluminium finish) features black nylon corner
joints.
Panels are fixed to the frame by means of self-tapping screws with nickel washers.
6- Modularity and orientation
6.1 Modularity
All T series units feature the following sections:
- Fan section.
- Containment section for heating coil and filter.
- Containment section for cooling coil, condensate collection tray and filter.
- Delivery plenum section.
- Return plenum section.
Following the path of processed air, the unit can be composed as follows:
Heating only:
-Heating coil section + fan section
-Heating coil section + fan section + delivery plenum
-Return plenum + heating coil section + fan section
-Return plenum + heating coil section + fan section + delivery plenum
Cooling only or heating/cooling with twin-application coil:
-Cooling coil section + fan section
-Cooling coil section + fan section + delivery plenum
-Return plenum + cooling coil section + fan section
-Return plenum + cooling coil section + fan section + delivery plenum
Cooling e post-heating:
-Cooling coil section + heating coil section + fan section
-Cooling coil section + heating coil section + fan section + delivery plenum
-Return plenum + cooling coil section + heating coil section + fan section
-Return plenum + cooling coil section + heating coil section + fan section + delivery
plenum.
Series T air handling unit
Technical, Installation and Maintenance Manual
page
7
Pre-heating and cooling:
-Heating coil section + cooling coil section + fan section
-Heating coil section + cooling coil section + fan section + delivery plenum
-Return plenum + heating coil section + cooling coil section + fan section
-Return plenum + heating coil section + cooling coil section + fan section + delivery
plenum.
Some of the compositions possible are shown in the figures below (unit with size 2 frame,
with 4-row and 2-row cooling coil, vertical and horizontal configuration and connections on
left side. The codes for each composition are also shown.
T2 40 00 0 0 1AS
T2 02 00 0 0 1AS
T2 42 GC 0 0 1AS
T2 42 GR 0 0 1IA
T2 40 00 0 0 4AS
T2 02 00 0 0 4AS
T2 42 00 0 0 4AS
T2 42 00 0 0 4AA
Series T air handling unit
Technical, Installation and Maintenance Manual
page
8
T2 40 00 M 0 1AS
T2
02RP001AS
T2 02 00 M 0 1IS
T202RS001AS
T240MV001IS
T202MV001AS
T242MO004AS
Series T air handling unit
Technical, Installation and Maintenance Manual
page
9
6.2 Orientations
The fan and cooling sections of the unit have been designed to allow selection of orientation by simply
switching the position of the intake panel and the air passage partition between the two sections. The coils
may be turned for connection on left or right side, as desired. The connection side is the one when facing the
unit with the fan motor on the left: The connection side is left when connectors are on the same side of the
motor.
All possible configurations with the two different orientations are shown below.
When defining the code, orientation refers to the unit without delivery and return plenums; account
also for the intake side of the first coil in the direction of air flow. For example, in the case of a unit
comprising heating coil, cooling coil and fan section, orientation will be defined by choosing between those
shown for fancoil units (see following pages).
N.B. Units in which the heating section is the first component must not be placed directly on the floor surface
when vertically oriented (1xx e 2xx).
Vertical orientation of
conditioning units
Horizontal orientation of
conditioning units
Series T air handling unit
Technical, Installation and Maintenance Manual
page
10
Orientation of vertical hanging
fancoils
Orientation of horizontal hanging
fancoils
7- Fans and motors
Fans
Centrifugal twin-intake fans with forward curved blades.
Sizes 6 and 7 are equipped with twin fans.
Motors
Motors are UNELMEC standard (protection category IP 55, insulation class F).
Transmissions
Fixed (on fan) and variable (on motor) Taper-Lock pulley and vee belts type SPZ or SPA
(depending on unit size).
Anti-vibration mounts
Elastomer anti-vibration mounts beneath motor-fan cradle and on upper side of fan. Fan
outlet makes seal with the panel by means of an elastic gasket.
8- Filters
Units are fitted with class G3 corrugated synthetic filters.
The filters are mounted on guides both in the cooling coil and the heating coil sections. In
the case of units complete with cooling and post-heating sections, filters are fitted in the
first section only.
Filters are removed by sliding them laterally through the opening on the connection side
panel by means of the tool supplied.
For quantity and dimensions of installed filter cells, refer to the technical specifications
table.
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