3.1 Type plate
Example:
Key for fan type plate:
The fan can be clearly identified by the ref. no., SNR (serial number) and PC (production code) numbers.
3.1.1 Motor type plate
Technical data about the motor can be found on the motor type plate!
3.2 Accessories
The use of accessories not offered or recommended by Helios is not permitted. Any potential damage is not covered
by warranty.
Duct system:
All Helios components fit standard duct Ø. For example, rigid spiral ducts, flexible aluminium or plastic ducts can be
used. The relevant fire-protection regulations must be observed if more than two stories of a building are connected.
4.0 Functional description RR EC
The centrifugal in-line fans RR EC are steplessly speed-controllable by means of 0-10 V control voltage. Sui-
table potentiometers (Type PU/A 10), three-step switches (Type SU/A) are offered in the Helios accessories range.
Stepless speed control is possible with the universal controller (Type EUR EC). Alternatively, the electronic
differential pressure/temperature controller EDR / ETR can be used.
m
Activation / deactivation:
EC fans can be frequently activated and deactivated via the 0-10 V control input or the release input
depending on the type. This is gentle on the electronics and ensures a long service life. Control via the
power supply (on/off) is not recommended. In general, there must be an interval of at least 120 seconds
between activation and deactivation.
m
In case of strong vibrations and/or odours, maintenance must be carried out by a specialist according to
chapter 1.4.
5.0 User maintenance
The centrifugal in-line fans RR EC are maintenance-free, there are no user maintenance provisions.
4
Centrifugal In-line EC Duct Fans – RR EC
Installation and Operating Instructions
CHAPTER 4
FUNCTION
CHAPTER 5
USER MAINTENANCE
Pipe clamp connectors BM..
Mounting bracket MK..
Backdraught shutter RSKK/RSK
Gravity operated shutter VK..
Rain-repellent grille G / RAG..
Protection guard SGR
Speed-potentiometer PU/A 10
Three-step switch SU/A
Universal controller EUR EC
Differential pressure/temperature controller EDR/ETR
Flexible attenuator length FSD..
Water heater battery WHR
Temperature control system for water heater battery WHST.. / WHS HE..
Electric heater battery EHR-R..
- with integrated temp. control EHR-R TR
Temperature control system for EHR-R.. EHS
Air filter box LFBR..
m
NOTE
Fig.1
ò Manufacturer's address
ù Fan label:
CE = CE mark
ä Version:
RR EC = Type designation
250 = Size
ë Item number
ö Production code / year of manufacture
ü Nominal voltage or voltage range / frequency
Å Rated current
î Power input
Ø max. flow medium temp. at rated operation
Æ Nominal speed
Protection class / motor insulation class / cosine
Installation and operating instructions/Print no.
ò ù
ä ë
ü
ö
Å î Ø
Æ
EN
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