WESPAK 5.05 Handbuch
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Installation and maintenance manual
Manuel d’installation et de maintenance
WESPAK
4.05, 5.05 & 6.05
Belt drive compact air handling units
Centrales compactes de traitement d'air à entraînement par courroies
IOM WPKBD-N.2GBF/09.08
Part number / Code : Q3NSTE864
Supersedes / Annule et remplace : IOM WPKBD-N1GBF/06.05
II
1
English
1 - Introduction
The purpose of this manual is to provide the installation, start-up, operating and maintenance rules to the users of the compact
air handling units.
It does not give a full description of all maintenance works assuring the long life and reliability of this type of equipment. Only
the services of qualified personnel, member of a registered maintenance company, can guarantee a reliable and durable
running of the machine.
2 - Safety Precaution
Before installing the unit, please read the following safety precautions carefully.
Warning
All wiring must not touch the heat source or any moving
parts of fan motor.
Warning
The unit must be GROUNDED to prevent possible hazards
due to insulation failures.
Warning
Ensure the rated voltage of the unit corresponds to the
name plate before carrying out wiring according to the
supplied wiring diagram.
Warning
All field wiring must be installed in accordance with the
national wiring regulations.
Warning
Installation, operation and maintenance must be
performed by qualified personnels who are familiar with
local codes and regulations and experienced with this
type of equipment.
Warning
Confirm the unit is switched OFF before installing or
servicing the unit.
Caution
When undertaking water connection, make sure that any
foreign matters will not be introduced into water piping.
Caution
It is forbidden to undertake any work on electrical
components of the unit, if there is presence of water and
humidity.
Caution
It is forbidden to undertake any work on electrical
components of the unit before disconnecting the power
supply.
Caution
Handling of the unit must be done by using the systems
designed to support its weight.
The manufacturer warranty will not be applied, if all installation instructions stated in
this manual have not been followed.
2
3 - Inspection and Storage
When the equipment is received, all items must be carefully
checked against the bill of lading to be sure all crates and
cartons have been received.
The units are shipped on pallet. Inspect all units for visible
or concealed damages.
In case of deterioration, formulate the precise reserves
on the transport document and send immediately a
registered letter to the forwarder, mentioning clearly
the occured damages and a copy of the letter to the
manufacturer or its representative.
4.1 - Operating limits
Water piping system
Maximum operating pressure 10 bar
Minimum entering temperature +4 °C
Maximum entering temperature +90 °C
Room air temperature Minimum temperature 5 °C
Maximum temperature 32 °C
Supply voltage 400 V ± 10% / 3 ph / 50 Hz
4.2 - Physical data
MODELS 4.05 5.05 6.05
Air flow range m3/h 4000 - 6000 5500 - 7500 7000 - 9000
Nominal air flow m3/h 5000 6500 8000
Fan static pressure Pa 400 400 400
Nominal cooling capacity (tot. / sens.) (1) kW 25.9 / 19.6 36.0 / 26.5 43.2 / 32.0
Chilled water flow l/h 4441 6172 7409
Nominal heating capacity (2) kW 21.3 29.9 35.8
Hot water flow l/h 1223 1716 2056
FAN
Type Double wheel centrifugal
Model DA 9/9 N2T DA 9/9 N2T DA 10/10 N2T
Drive Adjustable pulley - Belt
MOTOR
Type IP55 - PTO - Class F - 400 V / 3 Ph / 50 Hz
Power kW 1.5 2.2 2.2 3.0 3.0
Current A 3.45 4.8 4.8 6.48 6.48
Rotational speed rpm 1420 1430 1430 1430 1430
Do not stand or transport the unit on its end. Temporary
storage must be indoor, completely sheltered from rain,
snow, etc.
Change in the weather (high and low temperatures) should
not damage the unit. Excessively high temperature (60 °C or
more) may deteriorate certain plastic materials and cause
permanent damages. In addition, some electric components
and electronic boards may not operate correctly.
4 - Technical features
3
English
4.2 - Physical data (cont'd)
4 - Technical Features (continued)
MODELS 4.05 5.05 6.05
COOLING COILS
Type Copper tubes - Aluminium fins - 2.1 mm spacing
Finned length mm 1360 1800 1800
Number of tubes per row 15 15 17
Number of rows 4 6 4 6 4 6
Number of circuits 15 22 15 22 17 25
Number of empty tubes 0 2 0 2 0 2
Header diameter (inlet/outlet) mm 33 / 42 - 33 / 42 33 / 42 - 33 / 42 33 / 42 - 33 / 42
Condensate drain diameter inch 7/8" 7/8" 7/8"
Water content litres 8.4 16.1 10.5 20.7 11.6 23.2
HEATING COIL
Type Copper tubes - Aluminium fins - 2.1 mm spacing
Finned length mm 1360 1800 1800
Number of tubes per row 15 15 17
Number of rows 2 2 2
Number of circuits 15 15 17
Number of empty tubes 0 0 0
Header diameter (inlet/outlet) mm 33 / 42 - 33 / 42 33 / 42 - 33 / 42 33 / 42 - 33 / 42
Water content litres 5.2 6.2 6.8
ELECTRIC HEATER
Heating element type à ailettes lisse lisse
BE1 capacity kW 12 24 36
BE2 capacity kW 24 36 48 (1)
BE3 capacity kW 36 (1) 48 (1) 60 (1)
Supply voltage 400 V / 3 Ph / 50 Hz + Neutral + Earth
AIR FILTERS
Filter efficiency G2 G4 G2 G4 G2 G4
Media type Synthetic
Length mm 480 470 470
Height mm 445 445 500
Thickness mm 10 50 10 50 10 50
Quantity 3 4 4
DIMENSIONS AND WEIGHT (2)
Length mm 1150 1350 1350
Width mm 1550 1990 1990
Height mm 485 485 540
Weight kg 180 250 280
(1) To be imperatively installed in discharge electric heater casing.
(2) For double skin configuration : 50 mm thick panel filter + cooling coil + heating coil + fan.
4
Dimensions (mm)
Fan only casing or
electric heater casing
Standard casing or
silencer casing
Sizes A B A B
4.05 670 1498 1110 1498
5.05 870 1940 1310 1940
6.05 870 1940 1310 1940
5 - Dimensions
5.1 - Fixation dimensions
a) By threaded rods only
b) By threaded rods and hanger rails
Dimensions (mm)
Sizes A B C D E F GH
G2 filter G4 filter
4.05 1498 750 1074 1150 633 1690 82 122 485
5.05 1940 750 1274 1350 833 2132 82 122 485
6.05 1940 852 1274 1350 833 2132 82 122 540
12-way mixing box
2Standard casing
3Silencer casing
4Electric heater casing
5
English
5 - Dimensions (continued)
5.2 - Duct connections
98
F
A
C
G
J I
A
I
R
M
L
N
K
H
40 E
DB
285
Ø22
Ø33/42
42
Dimensions (mm)
Sizes A B C D EF G
G2 filter G4 filter
4.05 1438 424 1430 420 62 102 1646 1498
5.05 1880 424 1872 420 62 102 2088 1940
6.05 1880 479 1872 475 62 102 2088 1940
Dimensions (mm)
Sizes H I JK L M N
G2 filter G4 filter
4.05 485 1110 1252 1292 1150 1548 950 500
5.05 485 1310 1452 1492 1350 1990 1290 600
6.05 540 1310 1452 1492 1350 1990 1290 600
Side view Rear view
Front view
Top view
Bottom view
Remark : The dimensions of mixing box connection are identical to those of inlet duct collar connection (dimensions A & B).
6
5 - Dimensions (continued)
a) Cooling and heating configuration in the direction of air flow
Installation with 4-row cooling and 2-row heating coils
Sizes A B C D E F G H I
4.05 339 57 356 62 485 89 119 247 185
5.05 339 57 356 62 485 89 119 247 185
6.05 390 57 407 66 540 89 119 247 185
RIGHT-HAND
AIR
I H
A
F
E
B67
42
C
D
G H
285
H
H G
LEFT-HAND
AIR
67
CA
F
E
B
D
42
I
285
Installation with 6-row cooling and 2-row heating coils
Sizes A B C D E F G H I
4.05 351 50 356 62 485 84 140 226 206
5.05 351 50 356 62 485 84 140 226 206
6.05 402 54 407 66 540 84 140 226 206
Installation with 4-row cooling and 2-row heating coils
Sizes A B C D E F G H I J
4.05 356 66 339 90 485 63 112 146 178 56
5.05 356 66 339 90 485 63 112 146 178 56
6.05 407 67 390 90 540 66 112 146 178 60
Installation with 6-row cooling and 2-row heating coils
Sizes A B C D E F G H I J
4.05 356 66 352 83 485 63 112 168 178 50
5.05 356 66 352 83 485 63 112 168 178 50
6.05 407 67 402 83 540 66 112 168 178 55
H G
LEFT-HAND
AIR
C
J
D
EA
F
B
H I
424
42
RIGHT-HAND
AIR
C
J
D
EA
F
B
HI
G H
424
42
Dimensions are in mm.
Dimensions are in mm.
b) Heating and cooling configuration in the direction of air flow
5.3 - Water connections
7
English
6 - Installation
6.1 - Unit handling
Be careful to avoid rough handling on the unit. Do not
lift the unit by the condensate outlet or by the water
connections. Use a lifting truck to facilitate the unit
installation.
Warning
Sharp edges and coil surfaces are a potential hazard.
Avoid contact with them.
6.2 - Installation location
1. The units are designed to be installed above the false
ceiling.
2. Install the unit in a position having sufficient strength to
carry the weight of the unit.
3. Install the unit in a position where ducts can be connected
to inlet and outlet sides of the unit.
4. Install the unit in a position from where condensate can
be run to waste easily.
5. Check the distance between the upper slab and false
ceiling to ensure the unit will suit the distance.
6. Ensure there is sufficient space around the unit to service
it (see table hereafter for minimum clearances on service
side of filters and fan-motor assembly access).
Warning
Do not install the unit in a machinery shop or kitchen
where vapour from oil or its mist flows into the unit.
6.3 - Minimum service clearances
Leave sufficient space on the bottom and the sides of the
unit to assure maintenance works or replacement of one or
several internal components.
Sizes 4.05 5.05 6.05
A (mm) 1600 2000 2000
B (mm) 500 500 600
C (mm) 500 500 500
C
B
A
8
6.4 - Installation instructions
1. Prepare the fixing center distances at the ceiling for each casing (see section "Dimensions" for fixing center distances).
2. Fix the suspension kit (optional) composed of threaded rods only or threaded rods and hanger rails.
3. In the case that the suspension kit by threaded rods only is supplied, install the casing as indicated in the drawing below.
In the other case, fix the casing on the hanger rails with the aid of fixing screws, see drawing below.
4. On the double casing units, assemble the two casing with the help of factory fitted assembling clamps and screws.
5. Secure the unit in its final position and level it with a spirit level to assure proper drainage and operation.
6. Unit must be mounted in such a way that water will flow toward drain connection.
6 - Installation (continued)
Assembly of two casings
Suspension
kit hanger
rail
Factory fitted assembling
clamps and screws
Final assembly
Suspension kit by threaded rods only (optional)
1
2
3
4
5
2
1Lifting ring
2M10 nut
3M10 threaded rod
4Rubber isolator
5M10 washer
Suspension kit by threaded rods and hanger rails (optional)
1Lifting ring
2M10 nut
3M10 threaded rod
4Rubber isolator
5M10 washer
6Hanger rail
7Rail fixing screws
Threaded rod
M10
Weight 75 kg
Rubber isolator
Washer/nut
M10
1
2
3
4
5
2
6
7
Dieses Handbuch passt für folgende Modelle
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