Industrial air curtains Model IndAC
Optimal work climate with open doors
Industrial air curtains
Model IndAC
Industrial air curtain
Optimal work climate
During loading and unloading the door
remains open, without the indoor climate
being disturbed.
Industrial building doors are often open for long periods of time to facilitate transport
in and out of the building. However, open doors can result in a loss of heat to the
outside and the ingress of cold air. This disturbs the climate within the building,
which leads to draughts. Internal transport does not want to be hindered by closed
doors either, the internal doors between production halls and storage spaces for
instance, are open all day long. If there is a difference in temperatures between
these rooms, air will exchange. An air curtain provides for a climate separation that
substantially limits the natural air exchange of warm and cold air through the open
door. It is also an efficient solution in chill rooms. The air curtain is supplied without
a heating battery (ambient), so the climate in the chill room remains constantly low.
The open doors will contribute to safer and faster logistics and easy internal traffic.
As an added benefit, the climate separation between the chill room and adjoining
rooms will have a positive effect on energy usage. The Biddle industrial air curtain,
model IndAC, is highly suitable to handle these kinds of situations. Many years of
experience in combination with scientific research, forms the basis for the IndAC.
The IndAC makes the entrance accessible for transport and prevents cold air
entering the building. Free access, comfortable working conditions and less
absence due to illness are the results.
Model IndAC combines well with overhead
door systems.
2
Benefits of IndAC
Energy saving solution
• Easy access
• Prevention of draughts (on workplace)
• Low energy consumption
• Flexible suspension system
• Easy to control
• Maintenance-friendly (no filter)
Doorways of industrial buildings are usually faced with direct wind attack, or suffer
from under-pressure, resulting in large air volumes being introduced into the working
area. In order to provide optimum screening, a unit capable of providing large air
volumes is required in most situations.
Therefore, Biddle has optimised the discharge pattern for industrial applications.
The air passes through the curved discharge section with minimal resistance. The
patented Double Rectifier ensures that turbulent air from the fans is bundled into a
laminar air stream, discharging in a straight vertical line to the floor. Additionally, the
homogeneous discharge pattern across the door provides optimum heating of cold
outside air, eliminating draughts in the building and preventing expensive energy
being lost to the outside.
The curved design of the discharge section also means that it is easily installed
close to the door, preventing air leakages. The result is a well screened doorway
with a minimum loss of heat.
Both above and next to the door
IndAC air curtains can be installed directly above or next to the door. Different
installation positions are possible depending on the room layout around the door
(see page 7).
Modular design
The modular design of the IndAC facilitates the installation of multiple devices next
to or above each other, in order to cover any door heights or widths.
Easy to mount and clean
The various parts of the IndAC are very easy to access, making it easy to install,
maintain and clean. The unit contains a minimum of ‘internal obstacles’, resulting in
a smooth air flow through the unit in which dust has little chance of collecting.
Filter module
Model IndAC can be installed both
horizontally and vertically.
In normal situations, model IndAC does not need filters. However, in environments
where the air quality is critical, or where the air is heavily polluted, the filter module
(only IndAC S/M) may be applied in order to improve the quality of the discharged
air and/or to facilitate keeping the unit clean. The filter module is suitable for all
installation positions of the IndAC.
Pronounced industrial style
The IndAC is an industrial product with a robust and modern design. The colours are
matched to the latest developments within the industry. Thus the casing is supplied
in Blue (RAL 5023), with the components finished in a ‘metallic’ colour.
Other colours are available upon request.
3
Technology
When a door is open, the difference between the outside and inside temperature
leads to an exchange of air, resulting in cold air entering and warm heated air flowing
out. An air curtain above or next to the open door provides separation of the two
climates. Whilst developing the IndAC, Biddle has researched the outlet discharge
pattern. The result is the Double Rectifier.
Fan offering air-engineering benefits
Patented Double Rectifier
The IndAC is equipped with radial backward curved fans which homogeneously
distribute the air across the whole discharge opening, producing high efficiency and
comfort levels. Another advantage is the low sound level of the fan.
Patented Double Rectifier
If a conventional industrial air curtain without a rectifier discharges air at the same
velocity as a unit with a Double Rectifier, the downward penetration is tangibly less
(see figure 1). The air stream does not reach the floor, and the open door is not
screened off properly (see figure 3). Consequences include draught and loss of heat.
Side view
Fig. 3
Industrial air curtain without rectifier
Front view
Fig. 1
Industrial air curtain without rectifier
Fig. 2
IndAC with Double Rectifier
Due to the industrial air curtain with a Double Rectifier the incoming cold air is
heated so that it is no longer experienced as draught. The Double Rectifier has
vertical fins mounted on top of the horizontal fins to streamline the air flow in a
better way, resulting in an excellent downward penetration (see figure 2). The indAC
makes sure the air, which is about to flow out through the open door, stays in the
room. The Double Rectifier, which minimises turbulence in the discharge air stream
and surrounding air, ensures that the air movement generated by the fans, is directed
downward in a deeply penetrating laminar air stream (see figure 4). As a consequence
the energy consumption is reduced and comfort levels are increased all year round.
Fig. 4
IndAC with Double Rectifier
4
Selection
An air curtain should be selected so that it has sufficient capacity to heat up the cold
entering air to a comfortable temperature. Additionally, the unit should be able to
screen off the entire doorway. The selection of an appropriate air curtain depends on:
1. Door height or width
The door height or width is measured from the bottom or side of the unit. These are
known data, so based on the table below it is easy to select an air curtain. It is
important for the air curtain to be positioned close to the door with a minimal gap.
In addition, the air curtain should be at least as wide or high as the door opening,
as a too short air curtain will lead to air leakages on the sides or at the top.
2. Situation (building)
The conditions at a doorway vary continuously, leading to difficulty in determining
the volume and temperature of outside air entering the building. Other aspects such
as multiple open doors in a single room, or the orientation of the building may also
have a large influence on the capacity need. To make selection easier for you, please
use the following guidelines.
• Favourable conditions: no direct wind attack, a sheltered location, internal
(inside) doors.
• Normal conditions:
little direct wind attack, no open doors opposite
one another.
• Unfavourable conditions: direct wind attack on open door, multiple open doors,
large mechanical extraction rates, location in open
country.
Door height / Conditions
1
width FavourableNormal
Unfavourable
3 - 4 m
IndAC S
IndAC S
IndAC M
4 - 5 m
IndAC S
IndAC M
IndAC L
5 - 6 m
IndAC M
IndAC L
IndAC XL
6 - 8 m
IndAC L
IndAC XL
IndAC XL
1
Mounting height, measured from the bottom or side of the unit.
The above selection table is for indicative purposes only. If in doubt, please contact
Biddle for advice.
5
Various options
Typecode
IndAC S-150-W1-2R
Types
S = Small
M = Medium
L = Large
XL = Extra Large
Unit length (cm)
150 - 200 - 225
Coil type
W1 = Water heating high water temperatures
W2 = Water heating medium water temperatures
W3 = Water heating low water temperatures
E = Electrical heating
A = Ambient, no heating coil
Installation position
0 = Horizontal, above door
1L = Vertical, left side, square to wall
1R = Vertical, right side, square to wall
2L = Vertical, left side, parallel to wall
2R = Vertical, right side, parallel to wall
Variants
The industrial air curtain is available in four capacities: S(mall), M(edium), L(arge)
and XL (Extra Large). There are three lengths to choose from; 1.5, 2.0 and 2.25
meters. The air curtains are supplied with a water heating coil, an electric heating
coil, or exclusive heating coil (ambient). The IndAC can be positioned horizontally
and vertically (see page 7). Further, the device is available with a Basic, Plus or
Automatic control unit (see page 8).
Type
Unit
Coil type
Control
length1
IndAC S
IndAC M
150
2
Horizontal
E (electric) Basic / Plus / Vertical
A (ambient)
Automatic- left or right
IndAC L
IndAC XL
W1, W3 (water)
A (ambient)
Basic / Plus / - square or parallel
Automatic
to wall
1
2
200
W1, W2, W3 (water) Basic / Plus Installation
positions
150
225
By banking air curtain units, also a door opening wider than 2.5 m can be covered.
Electric heating units can not be controlled by the Basic controller.
Standard delivery and accessories
Model IndAC is delivered with:
• two suspension brackets - for horizontal installation
• two coupling plates - for vertical installation
• wall bracket - for vertical installation
• connection cable to interlink adjoining units
These components are also needed:
• Basic, Plus or Automatic controller
• base plate / plinth - for vertical installation (see page 18)
Options:
• door contact switch
• room thermostat
• filter module (filter G4) for IndAC S/M
Flexible suspension system
With horizontal installation, the unit is suspended above the door by using four
threaded rods (M12) and the suspension brackets supplied (see page 18).
As a flat surface is essential with vertical installation, it is recommended to place
the IndAC on a base plate. By using the supplied coupling plates and wall bracket it
is easy to fix and secure the unit.
6
Diversity in installation positions
The available room layout around a door determines where and how an air curtain
can be best installed. Thanks to a diverse range of installation positions, the IndAC
air curtain can be matched to the constructional possibilities offered by the local
situation.
Model IndAC should be positioned above or next to the door, covering the full length
or width of the doorway. Depending on the situation, the air curtain is either installed
horizontally above or vertically next to the door. There are a total of five installation
positions, which are shown below.
Installation
position
0
Horizontal above door
opening
Installation
position
1L
1R
Left
Right
2L
2R
Left
Right
Vertical side of door opening:
square to wall
Horizontal installation (position 0): excellent
to combine with overhead door systems.
Installation
position
Vertical side of door opening:
parallel to wall
Example of vertical installation (position 2R):
to the right and parallel to wall.
Air direction
Inspection side
Wall
Door
Ceiling
7
Control options
Three types of controller are available: Basic, Plus or Automatic.
1. Basic controller
The five-speed controller allows you to match the air volume to different conditions.
The controller has a rotary control switch for five speeds, a neon indicator and an
input for a door contact switch. Electric heated units can not be controlled by the
Basic controller.
2. Plus controller
Basic controller: Five speed controller
with neon indicator and a connection
for a door contact switch.
1
2
The Plus controller has two switches with five speeds:
1 = with open door
2 = heat demand when door closed
This controller is supplied with two rotary control switches. To switch from button
1 to 2, a door contact switch should be connected to the first input. To the second
input, a room thermostat should be connected. The air curtain will not switch off
until the room has reached the desired indoor temperature. On request, this controller
can be delivered with more control options.
3. Automatic controller
Ease of use should come first when using an automatic control. This automatic
control provides for optimum climate separation and makes it easy for the user to
keep the indoor climate comfortable in a consistent and energy-efficient way.
The fully automatic control unit consists of a PLC controller, a speed controller, an
outdoor sensor, and two sensors in the air curtain.
Plus controller: The control panel has two
switches with five speeds. Dimensions:
600 x 330 x 205 mm.
The air volume and the discharge air temperature are automatically geared to one
another by the PLC controller. The control unit adjust the heat demand to different
(weather) conditions.
It is also possible to add other sensors on a project by project basis, such as floor,
intake-air-temperature or room sensors. In consultation with you, the possibilities of
this automatic control will be entirely tailored to your local situation.
The PLC-service panel is part of the
automatic control.
8
Electrical connections
Interlinking units and connecting
Basic controller
IndAC 150
IndAC 200
IndAC 150
IndAC 200
IndAC 150
fan motors
thermal contacts
fan motors
connection cable delivered by
Biddle
IndAC 200
fan motors
thermal contacts
fan motors
fan motors
fan motors
thermal contacts
fan motors
thermal contacts
fan motors
fan motors
thermal contacts
fan motors
fan motors
thermal contacts
fan motors
connection cable delivered by
Biddle
connection cable delivered by
Biddle
five-speed controller
five-speed controller
five-speed controller
Connecting Plus controller
connection to unit
(see above)
connection to unit
(see above)
connection to unit
(see above)
wired by Biddle
restriction of unit
wired by Biddle
not wired by Biddle
restriction of unit
on
/ offbydoor
contact switch or room thermostat
wired
Biddle
not wired by Biddle
restriction
of
unit
on / off door contact switch or room thermostat
not wired by Biddle
on / off door contact switch or room thermostat
The IndAC is supplied fully wired. The connection cable included makes it easy to interlink.
Apart from this cable, only the mains supply cable needs to be connected.
9
Technical data
IndAC S/M
Water Heating
The air displacement values are
less when a filter module is used:
IndAC S: 10% and IndAC M: 15 %.
General data
S-150
S-200
M-150
M-200
unit length
m
1.5
2.0
1.5
2.0
1
door width / -height m
3.0 - 4.0
4.0 - 5.0
air inlet temperature
ºC
15
electrical supply
V/ph/Hz
400 / 3 / 50
max. current motors
A
0.96
1.28
1.56
2.08
max. power motors
kW
0.33
0.44
0.81
1.08
speed1 2 3 4 5
tapping voltage
V
95
145
190
240
400
IndAC S-150 W1LPHW 90/70°CW2
LPHW 80/60°C W3LPHW 60/40°C
speed1 2345123 45123 45
air displacement
m3/h 1830 2840 3640 4320 51501830 2840 3640 4320 5150 1830 2840 3640 4320 5150
air outlet temperature2 ºC 45 40373634504542 4038413735 3332
heating capacity
kW 18.624.227.830.533.522.229.333.937.441.2 16 21.324.727.330.1
water flow rate
l/h 820 1066 1226 1345 1476 971 1282 1485 1639 1807 695 923 1071 1183 1304
water pressure loss
kPa 0.7 1.2 1.6 1.9 2.2 1 1.7 2.2 2.7 3.2 0.6 1 1.3 1.5 1.8
sound pressure level at 5mdB(A)344450545934445054593444505459
weight
kg
929597
IndAC S-200 W1LPHW 90/70°CW2
LPHW 80/60°C W3LPHW 60/40°C
speed1 2345123 45123 45
air displacement
m3/h 2440 3790 4850 5760 68702440 3790 4850 5760 6870 2440 3790 4850 5760 6870
air outlet temperature2 ºC 46 41383735524744 4240433937 3534
heating capacity
kW 26.234.339.543.447.830.941.147.752.758.2 23 30.835.939.8 44
water flow rate
l/h 1157 1511 1741 1915 21061356 1799 2090 2309 2551 998 1337 1558 1725 1908
water pressure loss
kPa 1.6 2.7 3.5 4.2 5 2.1 3.6 4.8 5.8 7 1.3 2.2 2.9 3.5 4.3
sound pressure level at 5mdB(A)354552566135455256613545525661
weight
kg
119
124
126
IndAC M-150 W1LPHW 90/70°CW2
LPHW 80/60°C W3LPHW 60/40°C
speed1 2345123 45123 45
air displacement
m3/h 2750 4160 5230 6150 74102750 4160 5230 6150 7410 2750 4160 5230 6150 7410
2
air outlet temperature ºC 40 36343231464138 3735373432 3129
heating capacity
kW 23.8 29.933.736.640.128.736.641.6 45.349.920.926.730.3 33 36.3
water flow rate
l/h 1047 1319 1488 1615 17681258 1605 1822 1986 2186 906 1158 1314 1432 1576
water pressure loss
kPa 1.2 1.8 2.2 2.6 3.1 1.6 2.6 3.2 3.8 4.6 0.9 1.5 1.8 2 2.6
sound pressure level at 5mdB(A)404853576240485357624048535762
weight
kg
99
102
104
IndAC M-200 W1LPHW 90/70°CW2
LPHW 80/60°C W3LPHW 60/40°C
speed1 2345123 45123 45
air displacement
m3/h 3670 5550 6970 8200 98703670 5550 6970 8200 9870 3670 5550 6970 8200 9870
2
air outlet temperature ºC 42 37353432474240 3836393634 3231
heating capacity
kW 33.7 42.648.152.357.440.351.658.7 64.170.730.238.944.3 48.553.5
water flow rate
l/h 1484 1877 2122 2307 25311765 2261 2572 2808 3097 1311 1689 1924 2103 2319
water pressure loss
kPa 2.6 4
5 5.9 7 3.5 5.6 7.1 8.4 10 2.1 3.4 4.3 5.1 6.1
sound pressure level at 5mdB(A)414955586341495558634149555863
weight
kg
128
133
136
1
10
2
Based on normal circumstances. For selection see page 5.
The max. allowable discharge outlet temperature is 65°C. The data are limited at this temperature.
Technical data
IndAC L/XL
Water Heating
General
data
L-150
L-225
XL-150 XL-225
unit length
m1.5 2.25 1.5 2.25
1
door width/-height
m
6.0 - 8.0
air inlet temperature
ºC
15
electrical supply
V/ph/Hz
400 / 3 / 50
max. current
motors
A4.6 6.9 7.9 11.9
max. power
motors
kW2.96 4.44 3.44 5.16
speed1 2 3 4 5
tapping voltage
V 95 145 190240400
IndAC L-150 W1LPHW 120/100°CW3
LPHW 80/60 ºC
speed
1234512345
air displacement
m3/h 4120 6160 8320 10100 13740412061608320 10100 13740
air outlet temperature ºC 5548 444138 514643 4037
heating capacity
kW55.770.182.491 10651.36678.587.3103
water flow rate
l/h 24843129 367740614726 224728913440 38264500
water pressure loss kPa 2.13.2 4.35.26.9 1.11.72.4 2.9 4
sound pressure level at 5m
dB(A)4454 596472 445459 6472
weight
kg 201
201
IndAC L-225 W1LPHW 120/100°CW3
LPHW 80/60 ºC
speed
1234512345
air displacement
m3/h 6170924012470 15150 206006170924012470 15150 20600
air outlet temperature
ºC
5751 464339 554946 4339
heating capacity
kW 88.7112 132 146 171 83.3109 130 145 172
water flow rate
l/h 39555005 590165317620 367447685706 63737534
water pressure loss kPa 6.4 9.9 13.416.121.5 3.1 5 7.1 8.7 12
sound pressure level at 5m dB(A)4656 616674 465661 6674
weight
kg 277
277
IndAC XL-150 W1LPHW 120/100°CW3
LPHW 80/60 ºC
speed
1234512345
air displacement
m3/h 7080 10400 12480 14110 15820708010400 12480 14110 15820
air outlet temperature
ºC
4641 393736 454038 3735
heating capacity
kW 75.792.4 101 107 113 71.688.797.7 104 110
water flow rate
l/h 33754123 451147885059 313738874282 45634836
water pressure loss kPa3.75.36.377.82 33.64.14.6
sound pressure level at 5m
dB(A)5665 707376 566570 7376
weight
kg 201
201
IndAC XL-225 W1LPHW 120/100°CW3
LPHW 80/60 ºC
speed
1234512345
air displacement
m3/h 10610 15600 187202117023720 106101560018720 2117023720
air outlet temperature
ºC
4843 403938 484341 3938
heating capacity
kW 121149 163173183 118148163 174185
water flow rate
l/h 54076629 726777218164 518964787175 76428115
water pressure loss kPa11.416.619.72224.45.9 9 11 12.313.7
sound pressure level at 5m
dB(A)5867 727477 586772 7477
weight
kg 277
277
1
2
Based on normal circumstances. For selection see page 5.
The max. allowable discharge outlet temperature is 65°C. The data are limited at this temperature.
11
Technical data
Electric heating and ambient (no heating)
General data
S-150 S-200 M-150 M-200 L-150 L-225 XL-150XL-225
unit length
m1.52.01.52.01.52.251.52.25
door width/-height1
m
3.0 - 4.0
6.0 - 8.0
electrical supply
V/ph/Hz
400 / 3 / 50
max. current motors
A 0.961.281.56 2.08 4.6 6.9 7.911.9
max. cons. (per phase)2 A
45.2
60.9
67.8
91.3
-
-
-
max. power motors
kW 0.330.440.811.082.964.443.445.16
max. power consumption2
kW
31.2
42
46.8
63
-
-
-
speed
12345
tapping voltage
V
95145190240400
1
Based on normal circumstances (see page 5).
2
Only for electric heating.
150200
Electric
IndAC S
speed1 2 3 4 5 1 2 3 4 5
air displacement
m3/h1830 28403640 432051502440379048505760 6870
3
air outlet temperature ºC27 2829 303227282930 32
heating capacity
kW
7.4
12.4
17.3
22.2
29.6
10
16.6
23.3
29.9
39.9
sound pressure level at 5mdB(A) 34
44 50
54
59 35
45
52 56
61
weight
kg119155
IndAC M
speed1 2 3 4 5 1 2 3 4 5
air displacement
m3/h2750 41605230 615074103670555069708200 9870
3
air outlet temperature ºC31 3132 333331313233 33
heating capacity
kW
14.8
22.2
29.6
37.1
44.5
20
29.9
39.9
49.9
59.9
sound pressure level at 5mdB(A) 40
48 53
57
62 41
49
55 58
63
weight
kg126165
3
The max. allowable discharge outlet temperature is 65°C. The data are limited at this temperature.
150200
Ambient
IndAC S
speed1 2 3 4 5 1 2 3 4 5
air displacement4m3/h1830 28403640 432051502440379048505760 6870
sound pressure level at 5mdB(A) 34
44 50
54
59 35
45
52 56
61
weight
kg 78101
IndAC M
speed
1 23 451234 5
4
3
air displacement m /h2750 41605230 615074103670555069708200 9870
sound pressure level at 5mdB(A) 40
48 53
57
62 41
49
55 58
63
weight
kg 85111
150225
IndAC L
speed1 2 3 4 5 1 2 3 4 5
air displacement
m3/h 4120 6160 8320 1010013740 6170 9240 124701515020600
sound pressure level at 5mdB(A) 44
54 59
64
72 46
56
61 66
74
weight
kg190249
IndAC XL
speed1 2 3 4 5 1 2 3 4 5
air displacement
m3/h 7080 1040012480 141101582010610156001872021170 23720
sound pressure level at 5mdB(A) 56
65 70
72
76 58
67
72 74
77
weight
kg190249
4
12
2
The air displacement values are less when a filter module is used: IndAC S: 10% and IndAC M: 15 %.
Explanation of technical data
Heating capacity correction coefficients
The heating capacity of the battery type W1 represented in the tables on page 10 is
based on a water range of 90/70ºC. The heating capacity of battery type W2 is
based on a water range of 80/60ºC and of W3 on 60/40°C. The heating capacity of
the battery type W1 represented in the tables on page 11 is based on a water range
of 120/100°C and W3 is based on 80/60°C. An air inlet temperature of +15ºC has
been assumed. When other water temperatures and/or air inlet temperatures are
used, the heating capacity is to be multiplied by the appropriate correction factor
given below.
Heating capacity correction factors for battery types W1, W2 and W3
IndAC S/M
Water-Air inlet temperature
temperature + 5 ºC + 10 ºC + 15 ºC + 18 ºC + 20 ºC
W1W2W3W1W2W3W1W2W3W1W2W3W1W2W3
120/100
°C
1.74 2.1 3.721.641.983.511.541.85 3.3 1.481.783.171.441.743.08
110/90
°C
1.561.883.351.461.763.121.371.652.931.311.58 2.8 1.271.532.72
100/80
°C
1.381.672.971.281.552.761.191.442.551.131.372.431.091.322.35
90/70
°C
1.191.452.58 1.1 1.332.38 1 1.222.170.951.152.050.911.111.97
80/60
°C
1 1.222.180.911.111.980.81 1 1.780.760.931.660.720.891.68
70/50
°C
0.81 1 1.780.720.891.590.630.781.390.570.711.280.540.67 1.2
60/40
°C
0.620.781.390.530.671.190.440.56 1 0.39 0.5 0.890.360.450.81
50/40
°C
0.620.751.330.520.641.140.430.530.940.380.470.830.340.430.76
To increase the service life of the fans as well as for safety reasons, the maximum discharge air temperature allowed is 65ºC.
Heating capacity correction factors for battery types W1 and W3
Water-
temperature
120/100
°C
110/90
°C
100/80
°C
90/70
°C
80/60
°C
70/50
°C
60/40
°C
50/40 °C
IndAC L/XL
Air inlet temperature
+ 5 ºC
+ 10 ºC
+ 15 ºC
+ 18 ºC
+ 20 ºC
W1
W3
W1
W3
W1
W3
W1
W3
W1
W3
1.132.211.072.07 1 1.940.961.860.941.81
1.011.970.951.840.881.720.841.640.821.59
0.891.740.821.610.761.480.721.41 0.7 1.36
0.761.49 0.7 1.360.631.25 0.6 1.170.571.12
0.631.240.571.120.51 1 0.470.930.450.88
0.5 0.990.440.870.380.750.340.690.320.64
0.370.740.310.630.250.510.220.45 0.2 0.4
0.390.410.320.640.270.520.230.450.210.41
To increase the service life of the fans as well as for safety reasons, the maximum discharge air temperature allowed is 65ºC.
13
3
Explanation of technical data
Water flow rate
mw = water flow rate [l/h]
Q
= capacity [kW]
ρw = density of water (=1) [kg/l]
Cpw = specific heat of water
(=4.18) [kJ/kg°C]
∆Tw = temperature difference,
water [°C]
When water and room temperatures other than the values represented in the tables
are used, the water flow rate can be roughly calculated using the formula below.
Before doing so, the heating capacity must first be recalculated based on the table
on page 13.
mw =
Q
ρwC pw ∆Tw
•
3600 [ l/h]
Waterside pressure loss
∆ pw2 = waterside pressure loss
[kPa]
∆ pw1 = waterside pressure loss
according to table values
[kPa]
mw1= water flow rate table values
[l/h]
mw2 = water flow rate calculated
using formula [l/h]
When water temperatures other than the values represented in the tables are used,
the waterside pressure loss can be calculated using the formula below. To do so,
the water flow rate must first be calculated.
2
( mmww ) [kPa]
2
∆ pw = ∆ pw
1
2
1
Sound
Lp = niveau sonore dB(A)
T = reverberation value, deviating
room [s]
T0 = reverberation value reference
room [s] (0.8 s)
V = volume, deviating room [m3]
V0 = volume, reference room [m3]
(2500 m3)
d = distance of the device
d0 = reference distance is 5 m
n = number of units
14
The sound data represented on pages 10 to 12 were measured at a distance of 5m
from the device, in a room with a reverberation time of 0.8 seconds and with a
volume of 2500 m3. If a unit is used in a deviating room, or if multiple devices are
used in a single room, the sound pressure level must be recalculated. This can be
done using the below formula below. The relevant table value can be found in the
tables on pages 10 to 12.
( ()
()
( )
)
T
V
do2
table
value
+
10
•
log
-10
•
log
+10
•
log
+10 • log (n) [dB(A)]
Lp =
2
d
T0
V0
Water connections
Positions
Horizontal above door opening
R R (0)
R R
RR
RRRR
V V
RR
RRRR
V V
VV
VV
V
sVVV
VVs
VV
IndAC S/M W1, IndAC L/XL W1/W3
IndAC S/M W2/W3
Vertical left on the wall (1L / 2L)
Vertical right on the wall (1R / 2R)
R R
V V
RR
R R
VV
V
VVVs
RRRR
VV
IndAC S/M W1, IndAC L/XL W1/W3
R R
RR
RRRR
V
V s
V V
sVVVV
RRRR
IndAC S/M W1, IndAC L/XL W1/W3
R R
RR
RR
RRRR
sV
VV
IndAC S/M W2/W3
VV
V
IndAC S/M W2/W3
(R = Return, S = Supply)V V
VV
The ambient unit does not have water connections.
VVVV
Dimensional sketches
G1" female thread
Flanges (DIN 2635 - NW 25 - PN 40)
45
45
49
49
49
49
45 45
IndAC S/M and IndAC L/XL (only W3) come as a standard with G1”
female thread (flanges are optional).
31
31
45
45
3131
4545
Note:
• All dimensions are in mm.
100
100
45
45
100100
45 45
IndAC L/XL (only W1) come as a standard with flanges.
56
56
56
56
31 31
31
31
56
56
49
49
56
56
49
49
100
100
100
100
45
45
4545
15
Dimensional sketches
Installation position: 0, 1L and 1R (see page 7)
70
E
A
Position 0
G
D
M12 female thread
for suspension
/ fixation (4x)
18
B
E
See page 15 for positions and dimensional sketches water connections.
F
Wall
Ceiling
Door
18
C
Inspection panel
Lead-through
electrical wiring ø22.5
Ambient
Water Electric
no filter module filter module no filter module filter module
Type
IndAC S-150
IndAC S-200
IndAC M-150
IndAC M-200
IndAC L/XL-150
IndAC L/XL 225
A B
1500 1464
2000 1964
1500 1464
2000 1964
1500 1464
2250 2214
Note:
• All dimensions are in mm.
16
C
D
E
F
no filter module
G
104
407290583
146
853
976
956
1079
976
209547450808
1193
-
1316
-
-
Dimensional sketches
Installation position: 2L and 2R (see page 7)
G
E
D
Door
F
C
Wall
Inspection panel
Lead-through electrical wiring ø22.5
18
A
B
18
See page 15 for positions
and dimensional sketches
water connections.
70
E
M12 female thread
for suspension/fixation. (4x)
Ambient
Water
no filter module filter module no filter module filter module
Type
IndAC S-150
IndAC S-200
IndAC M-150
IndAC M-200
IndAC L/XL-150
IndAC L/XL 225
A B
1500 1464
2000 1964
1500 1464
2000 1964
1500 1464
2250 2214
C
D
E
F
Electric
no filter module
G
104
407290583
146
853
976
956
1079
976
209547450808
1193
-
1316
-
-
Note:
• All dimensions are in mm.
17
A
B
50
ø 13
50
145
C
145
36
36
45°
Dimensional sketches
Max. 1000
Horizontal installation
A
B
B
36
C
145 36 145
C
40
36
36
36
36
36
Max. 1000
ø1
18
3
72
72
40
50
Max. 1000
C
45°
18
50
36
145
145
45°
36
B
M12
C 145
145
45°
45°
36
B
145
145 C
45°
D
50
50
Max. 1000
C
145
50
36
145
A
Suspension
brackets
A
50
ø 13
ø 13
ø 13
ø 13
50
A 50
Max. 108
Min. 75
ø 13
50
A
Max. 1000
36
B
50
M12
36
M12
M12
M12
40
36
36
75
36
Max. 108
Min. 75
Max. 108
Min. 75
Max. 108
Min. 75
36
36
18
36
72
72
72
18 72
3
C
36
18
72 18
C
ø1
18
ø1
3
40
Wall bracket
F
36
36
D
36
40
36
36
36
H
40
40
36
E
J
40
C
18 72
3
ø1
3
ø1
40C
40
D
90 ∞
40
72
18
3
ø1
72
72
C
18
18
D
72
40
36
Coupling plate
18
D
Max. 108
Min. 75
Max. 108
Min. 75
Vertical installation
D
M1
E
75
3
70
C 20
G
G
3
ø1
70
20
20
C
C
G
G
A
B
C
D
E
F
G
H
J
580480290370690400427583433
740640450530963560588808658
Notes:
• All dimensions are in mm.
• With horizontal installation, two suspension brackets are supplied as standard. Threaded rods are not supplied as standard.
• With vertical installation, two coupling plates and a wall bracket are supplied as standard. The base plate / plinth is an accessory.
70
75
75
75
75
C
70
20
20
H
H
J
J
H
J
H
H
75
G
70
ø1
C
3
3
ø1
3
218
90 ∞
J
90 ∞
90 ∞
90 ∞
J
90 ∞
3
ø1
Type
IndAC S/M
IndAC L/XL
F
20
ø1
Base plate / plinth
(accessory)
F
70
G
E
75
ø1
C
E
F
75
F
75
E
75
F
75
E
Dimensional sketches filter module
For IndAC S/M water heating whit female thread or ambient unit.
IndAC with filter module
The filter module is visible behind the inlet
grilles.
Weight filter module
Typekg
IndAC S/M-150
20
IndAC S/M-200
23
A
84
84
84
84
84
84
84
84
TypeA
IndAC S/M-150
1493
IndAC S/M-200
1993
Note:
• All dimensions are in mm.
Type
23
23 23
23
576
576576
576
122
23
122
122
122
AA
A
23
23 23
Number of filter per inlet grille
filter dimensions / number
Type
600x500x100500x500x100
IndAC S/M-150
2
0
IndAC S/M-200
2
1
A
IndAC S/M-150
Type 1493
Type
IndAC S/M-200Type1993
IndAC
IndACS/M-150
S/M-150
IndAC
S/M-150
IndAC
IndACS/M-200
S/M-200
IndAC S/M-200
AA
A
1493
1493
1493
1993
1993
1993
319
Specifications
Casing
The casing and the inlet grille are manufactured from zinc-plated sheet steel, extra
strengthened to minimise deformations and vibrations, and have a full-polyester
powder coating. The Double rectifying discharge grille is made of aluminium. The
main casing is supplied in Blue (RAL 5023) and the air inlet and discharge grilles in
the colour titan (Polydrox). Other colours are available at an extra charge.
Motor / fan assembly
The radial backward curved fans are mounted in the casing such that they cause
no vibration. Each fan is driven by a rotor motor on ball bearings. The fan casing
and impellers are manufactured from aluminium. Motors for water and ambient
units are rated to protection class IP44. The standard motor is supplied with thermal
contacts, which will break the circuit of the motor when the maximum permissible
motor temperature is exceeded.
Heating battery
The heating battery LPHW is manufactured with 1/2" copper tubes and aluminium
fins. The water connections are G1" female thread (except for Indac L/XL W1).
The test pressure is 9 bar and the maximum operating pressure is 8 bar at 125ºC.
The water connections of the W1 battery for Indac L/XL have flanges. The test
pressure is 30 bar and the maximum operating pressure is 24 bar at 175°C.
Higher temperatures and pressures are available upon request.
The electric heating battery is manufactured with aluminium fins. The battery is
controlled electronically and fitted with overload protection. When the device is
switched off, the fans will continue to rotate until the fins have cooled sufficiently.
Subject to change
2
Biddle bv
P.O. Box 15
NL-9288 ZG Kootstertille
The Netherlands
tel. +31 512 33 55 24
fax +31 512 33 55 54
e-mail [email protected]
internet www.biddle.info
INDAC-EX.en-2013-06-pdf•13032208-1
• ISO 9001
• ISO 14001
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertisement