BLAUBERG Ventilatoren Iso-ZS User manual

EN
Iso-ZS
User’s manual

Iso-ZS
2
CONTENTS
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
3
3
3
7
7
8
11
13
17
20
20
20
21
22
23
Purpose
Delivery set
Technical data
Safety requirements
Fan design
TSC module description and functioning
Mounting and set-up
Connection to power mains
Wiring diagrams
Technical maintenance
Storage regulations
Manufacturer's warranty
Troubleshooting
Acceptance certificate
Warranty card
page

Iso-ZS
The centrifugal electric fan Iso-ZS enclosed in a metal sound-insulated casing with
a double-inlet Ø 180 to 320 mm impeller and forward curved blades, hereinafter the fan,
is designed for supply and exhaust ventilation of domestic, public and industrial premises
with high sound attenuation requirements.
The fan is designed for horizontal installation on an even surface or horizontal suspended
mounting and connection to Ø 250 and 315 mm round air ducts.
Transported air must not contain any flammable or explosive mixtures, evaporation of
chemicals, sticky substances, fibrous materials, coarse dust, soot and oil particles or
environments favourable for the formation of hazardous substances (toxic substances,
dust, pathogenic germs).
The fan is rated for continuous operation.
The fan requires simple maintenance and is applicable for the transported air temperature
from -20 °C up to +45 °C.
Hazardous parts access and water ingress protection ratings is IP X4.
The delivery set includes:
- fan (1 item)
- user's manual
- packing box.
Specially ordered accessories NOT INCLUDED in the delivery set:
- a set of mounting brackets
- s set of suspension eye bolts
- air filters
- metal grilles
- air ducts
- fittings
- electric accessories
Fan name designation, fan options, functioning and connecting dimensions are stated
in the Tables 1, 2 and Fig. 1-6. The fan design undergoes continuous improvement.
Therefore, some models may slightly differ from the ones described herein.
3
PURPOSE
DELIVERY
SET
TECHNICAL
DATA
Prior to trial run and commissioning the fan make sure its air capacity and current
consumption match the respective technical data for a specified fan standard size.
The motor must be equipped with self-resettable overheating protection.
WARNING
!

Iso-ZS
4
1 2
Overall and connecting dimensions of Iso-ZS fan
with one intake and one exhaust spigot
Overall and connecting dimensions of Iso-ZS fan
with two intake spigots and one exhaust spigot
251
251
266
306
Iso-ZS 315/2x250 6E
H2H1HB2 L L1B B1 B3 L2
600 500 580 31
H3
313 248 M8 550 171 431 340 176 326 680 510
Iso-ZS 315/2x250 4E
Iso-ZS 315/2x250 4E max
Iso-ZS 315/2x250 6E max
600
650
670
500
530
610
580
635
725
33
38
45
313
313
313
248
248
248
M8
M8
M10
550
610
620
171
188
216
431
465
457
340
450
367
176
186
186
326
346
427
680
735
825
510
570
660
Modell Dimensions [mm] Weight
[kg]
Iso-ZS 250-6E
Iso-ZS 315 6E
Iso-ZS 250-4E
Iso-ZS 315 4E
Iso-ZS 250 6E max
Iso-ZS 315 4E max
Iso-ZS 250 4E max
Iso-ZS 315 6E max
H1
HB B1 H2 LL1 L2
313
313
313
313
M8
M8
M8
M10
600
600
650
670
550
550
610
620
500 340
500
530
610
340
450
367
580680 510
580
635
725
680
735
825
510
570
660
31
33
38
45
H
L1
L
H1
H2
B
D
D
B1
L2
d
H
L1
L
H1
H2
B2
B3
H3
D1
D1
B
D
B1
L2
d
table 1
21,5
21,5
470
470
435
435
455
455
248
248
M8
M8
400
400
298
298
216
216
570
570
400
400
30,8
30,8
540
540
483
483
503
503
248
248
M8
M8
450
450
340
340
241
241
640
640
470
470
table 2
Modell Dimensions [mm] Weight
[kg]

Iso-ZS
10
9
11
20
21
22
23
24 25 26
27
28
29
t
C
min max
30
12
10
9
11
20
21
22
23
24 25 26
27
28
29
t
C
min max
30
12
23
1
65
4
7
8
23
1
6
4
7
8
13
5
3
4
1 - Fan casing
2 - Sound-insulating layer
3 - Intake spigot
4 - Exhaust spigot
5 - Terminal box
6 - Fan grounding
7 - Impeller
8 - Mounting nut
9 - Speed control knob
10 - Temperature control knob
11 - Fan operation indicator
12 - Thermostat indicator
1 - Fan casing
2 - Sound-insulating layer
3 - Intake spigot
4 - Exhaust spigot
6 - Fan grounding
7 - Impeller
8 - Mounting nut
9 - Speed control knob
10 - Temperature control knob
11 - Fan operation indicator
12 - Thermostat indicator
13 - Power cable with plug

Iso-ZS
6
5
Iso-ZS fan mounting and operation example
1xD 3xD
6
General mounting recommendations for Iso-ZS fans

7
The fan must be mounted and connected to power supply only by properly qualified personnel
in compliance with acting regulatory documents.
Disconnect the fan from power mains prior to any maintenance and repair operations.
Check the fan for any visible damages of the impeller, casing and grille prior to connecting
the fan to power mains. The fan casing must not contain any foreign objects which can
damage the impeller blades. The power cable must not be in contact with any hot fan surfaces
and air ducts.
The fan (Fig. 3, 4) consists of a metal casing 1 internally lined with a sound-insulating layer 2,
an intake spigot and exhaust spigot 4 for the model with one intake and one exhaust spigot
(Fig. 3) or two intake spigots 3 and one exhaust spigot 4 for the model with two intake
spigots, Fig. 4. The fan spigot diameters match the connected air duct diameter.
The fan connection to power supply to single-phase power mains is accomplished either
via a terminal block 5 or a power cable with a plug 13 for R modification.
The fan casing has a slot for connection of the fan grounding 6. The impeller 7 is fixed directly
to the motor shaft. The mounting nuts 8 for horizontal suspended mounting by means of eye
bolts are located on the casing top. The eye bolts are not included in the delivery set.
The fan modifications with a speed and temperature controller are equipped with a speed
control knob 9, a temperature control knob 10, an operation indicator 11 and a thermostat
indicator 12.
The fan has two electric connection options:
- via a terminal block 5 (Fig. 3);
- via a power cable with a plug (R modification) (Fig. 4).
The model Iso-ZS…K1 with mineral wool insulation is designed for air exhaust only.
Do not operate the fan in explosive or inflammable environments.
Transported air must not contain dust, solid particles, sticky substances and fibrous
materials.
Do not operate the fan outside the temperature range stated in the user's manual.
Do not operate the fan in aggressive or explosive environments.
SAFETY
REQUIREMENTS
FAN
DESIGN
!
WARNING
DO NOT
Iso-ZS

Iso-ZS
8
TSC MODULE
DESCRIPTION
AND
FUNCTIONING
Electronic temperature and speed controller
Available in Iso-ZS GI, Iso-ZS G.
The electronic speed and temperature control module is designed for duct temperature
control and automatic variable speed control (air flow control) depending on the temperature.
Iso-ZS GI, models are equipped with a built-in temperature sensor and the
Iso-ZS G models are equipped with an external temperature sensor fixed
on a 4 m cable.
The front panel of the fan (fig. 3, 4) has the following controls and indicators:
Speed control knob 9
Temperature control knob 10
Fan operation indicator 11
Thermostat indicator 12
The functioning logic of the electronic speed and temperature control module enable fan
speed control depending on the air temperature in the air duct.
Depending on the fan model the return to pre-set lower speed has two delay patterns:
- temperature sensor-based feedback delay
- timer-based feedback delay
Operation of the electronic temperature and speed control module for
Iso-ZS GI, Iso-ZS G models.
Set the desired air temperature (thermostat set point) by turning the thermostat control knob
10 and the minimum rotation speed (air flow rate) by turning the speed control knob 9.
The fan operation indicator 11 lights up as the fan is started.
If the air temperature increases above the thermostat set point the fan switches to the
high speed (maximum air flow rate). Synchronously, the thermostat indicator 12 lights up.
If the temperature decreases below the thermostat set point the fan switches to the pre-set
lower speed.

9
The motor switches to high speed as the air temperature exceeds 2 °C above the set
thermostat set point. The motor revers to the pre-set lower speed as the air temperature
drops below the thermostat set point. This pattern is used to keep air temperature to
within 2 °C. In this case the motor speed switches are rare.
Operation of the electronic temperature and speed control module.
Set the desired air temperature (thermostat set point) by turning the thermostat control knob
10 and the minimum rotation speed (air flow rate) by turning the speed control knob 9.
The fan operation indicator 11 lights up as the fan is started.
If the air temperature increases above the thermostat set point the fan switches to the
high speed (maximum air flow rate). Synchronously, the thermostat indicator 12 lights up.
If the temperature decreases below the thermostat set point the fan switches to the pre-set
lower speed. As the air temperature exceeds the set thermostat set point, the motor switches
to higher speed and the switch delay timer is activated for 5 min.
The motor reverts to lower speed as the air temperature drops down below the thermostat
set point and only after 5 minutes countdown. This pattern is used for exact air
temperature control.
Iso-ZS

Iso-ZS
10
Example of the temperature-based feedback delay for the temperature and
speed control module:
Initial Conditions:
Rated rotation speed is 60 % of the maximum speed.
Set temperature point is +25 °C.
Air duct temperature is +20 °C.
1. Fan impeller rotation speed is 60 %.
2. Air duct temperature increases, the fan impeller rotation speed is 60 %.
3. Air duct temperature reaches +25 °C, the fan switches to impeller rotation speed 100 %.
4. Air duct temperature starts falling. The fan impeller rotation speed is 100 %.
5. Air duct temperature reaches +23 °C. The fan switches to the pre-set lower speed 60 %.
Example of the timer-based feedback delay for the temperature and
speed control module:
Initial Conditions:
Rated rotation speed is 60 % of the maximum speed.
Set temperature point is +25 °C.
Air duct temperature is +20 °C.
1. Fan impeller rotation speed is 60 %.
2. Air duct temperature increases, reaches +25 °C and continues to grow.
3. The fan switches to impeller rotation speed 100 %. The delay timer is activated for 5 minutes.
4. Air duct temperature starts falling down. The fan operates with impeller rotation speed is 100 %.
5. The air duct temperature reaches +25 °C and continues to drop.
6. After the timer countdown is over, the fan switches to the pre-set lower speed (=60 %).
After the speed switches to 60 % the timer starts 5 minutes countdown again.
7. Air duct temperature increases, reaches +25 °C and continues to grow.
8. After the timer stops, the fan switches to the high speed 100 %.
After the speed switch the timer starts 5 minutes countdown.
Thus, in the timer delay pattern the delay timer activates each time the fan speed changes.