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
