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FläktGroup 

DC_9971GB 20201028_R2

Specifications are subject to alteration without notice.

Fire damper ETPR-E-1 - Instructions for Installation, Operation and Maintenance

2

GENERAL

Fire and smoke damper ETPR-E-1 is used as a closing device for pre-
venting the spread of fire and smoke in ventilation ducts between fire 
compartments. Fire dampers are equipped with fusible link and spring 
mechanism for closing or with electrical actuator. 

ETPR-E-1 conforms to fire resistance class E 120 / E 60 S when in-
stalled in vertical ducting and E 90 / E 60 S in horizontal ducting. Fire 
damper is tested according to test standard EN 1366-2 and classified 
according to EN 13501-3. ETPR-E-1 is approved for installation into buil-
ding elements made of concrete, lightweight concrete, brick or gypsum 
plate walls. The damper shaft can be installed in horizontal or vertical 
position. An E-classified fire damper requires fire insulation for ducts in 
order to comply with the compartmentation requirement (EI).

ETPR-E-1 is CE marked.

INSPECTION

The operation of the fire damper must always be inspected before and 
after installation.
Ensure that the casing is circular and that the blade moves and closes 
unobstructed. Remove any construction material remains and dust from 
the inside of the damper.
Function testing of the damper has to be carried out at least twice a 
year.

SETTING THE DAMPER WITH THERMAL FUSE AND 

REPLACING THE FUSE

Loosen the fuse screw by approximately 7 mm. By turning the setting 
handle, set the blade into the “open” position. Tighten the screw by 
hand. ATTENTION! DO NOT USE ANY TOOL. To replace the fuse, unscrew 
the fuse screw together with the fuse. Then  
install a new fuse and set the fire damper as described above.
BE CAREFUL NOT TO LET THE SPRING-LOADED HANDLE HURT YOUR 
HAND.

TESTING MOTORIZED DAMPERS

Motorized dampers can be tested before connecting the electricity by 
using the tool delivered with the unit, and when electricity is connected 
by operating the thermal switch. Note! If you open the damper using the 
tool, do not forget to release the damper back to closed position before 
connecting electricity.

Electric installations are only allowed to properly trained electricians 
and according to separate drawings and wiring diagrams. Damper mo-
tor wiring diagram is shown in Fig. 2.

Stamp: 70°/50°/100° C

Colour code: RED = 70° C

BLUE = 50° C

Fuse screw

Fuse

5 mm

BLACK = 100° C

Fig. 1.  Fuse

Fig. 2. Wiring diagram for damper motor

REPLACEMENT FUSES

Fuse  70° C 

= ETPR-99-01-4

Fuse  50° C 

= ETPR-99-01-3

Fuse  100° C 

= ETPR-99-01-7

OPERATION

Tf

Tf

LE D

S1 S2 S3 S4 S5 S6

 <5°

 <80°

2

1

– +

T

~

Status data of limit switches

Power supply

Thermal trip

AC 230 V

AC 24 V

DC 24 V

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