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Blauberg KOMFORT Roto EC D650

Air handling units with rotary heat exchanger. Maximum air capacity up to 710 m³/h.
  • Description
  • Characteristics
  • Capacity diagram
  • Downloads
  • Accessories
  • Designation key
Air handling units for efficient supply and exhaust ventilation in flats, houses, cottages and other buildings.Heat recovery is provided by the rotary heat exchanger and minimizes ventilation heat losses.Controllable air exchange for creating the best suitable indoor microclimate.Compatible with round Ø160 and 200 mm air ducts.Additional spigot for kitchen hood air duct connection.
The fan casing is made of galvanized steel soundproofed on the inside with mineral wool.KOMFORT Roto EC D(2) – model without electric heater. KOMFORT Roto EC D(2)E – model with electric heater. The insulation of KOMFORT Roto EC D(E) is 40 mm, for KOMFORT Roto EC D2(E) is 20 mm.  
Unit maintenance is performed from the bottom panel side.The distinctive feature of KOMFORT Roto EC D2(E) is a low casing profile. 
All the models are equipped with a fifth spigot for connection of the air duct from the kitchen hood.

Two built-in filters with G4 and F7 filtration class provide efficient supply air filtration. Optionally, a H13 supply air filter may be used. The G4 filter is used for extract air filtration. 
High-efficient external rotor EC motors and centrifugal impellers are used for air supply and exhaust. EC motors have the best power consumption to air flow ratio and meet the latest demands concerning energy saving and high-efficient ventilation. EC motors are featured with high performance, low noise level and totally controllable speed range. Dynamically balanced impellers. 

ROTARY HEAT EXCHANGERThe rotary heat exchanger is a short rotating cylinder filled with aluminium band layered in such a way that both supply and exhaust air pass through it. The band the heat exchanger is made of first contacts the supply air flow and then the exhaust air flow. As a result it is heated and cooled in turns transferring heat and moisture from the warm air flow to the cold one. The advantages of the rotary heat exchanger compared to plate heat exchangers are the absence of condensate, comfortable humidity level maintenance and low freezing danger.
The KOMFORT Roto EC D... S17 units are equipped with the thTune control panel with an LCD display.  

The KOMFORT Roto EC D... S18 units are equipped with the pGD1 control panel with an LCD display.  

The thTune and pGD1 panels are interchangeable. 
The standard delivery set includes a 10 m cable for connection to the control panel.


Turning the unit on/off. Turning on the operation modes: Automatic mode, Ventilation mode (can be enabled only from the pGD1 control panel). Maintaining a pre-set room temperature by activating/deactivating the rotary heat exchanger. Automatic reduction of the supply and exhaust ventilation air flow rate to obtain the user-defined minimum allowable supply air temperature. Supply and exhaust fan control. Setting day- and week-scheduled operation of the unit. Controlling the electric actuators of the supply and exhaust air dampers. System shutdown on signal from fire fighting system. When connecting external electrical heating elements and/or CCU to the unit the activation signal controls their operation if cooling/heating is required. Filter clogging indication by motor meter.
The KOMFORT Roto EC D(2)E units are equipped with the electric heater. If the necessary temperature level of the supply air cannot be achieved through heat recovery, the heater turns on automatically and heats the air supplied to the premise. The heaters incorporate protective measures securing the safe unit operation. The air handling unit is designed for wall, wand or floor mounting.
Parameter KOMFORT Roto EC D650 Measurement unit
Max. unit power 3167 W
Voltage 220-240 V
Phase 1 ˜
Frequency 50/60 Hz
Max. unit current without electric heater 2.5 A
Max. power without electric heater 367 W
RPM 3600 min-1
Max. unit current 13.7 A
Air capacity 197 l/s
Air capacity 710 m³/h
Sound pressure level at 3 m distance 36 dBА
Temperature of transported air -25...+60 °С
Insulating material 40 mm mineral wool mm
Extract filter G4 -
ErP 2016, 2018 -
Heat recovery efficiency 80–87 %
Weight 102 kg
Heat exchanger material aluminum -
Connected air duct diameter 200 mm
Casing material galvanized steel -
SEC class A -
Capacity diagram
Capacity diagram
  • Selection method:
  • Air capacity:
  • Pressure:
Operating point
  • Air capacity: --
  • Pressure: ---
Documents archieve
Documents archieve
KOMFORT Roto EC D/DE - data sheet (pdf 1.46Mb)
KOMFORT Roto EC D/DE - image (png 240.39Kb)
KOMFORT Roto EC D/DE - user's manual (pdf 4.08Mb)


Model         Dimensions [mm]
D B B1 H H1 L L1
KOMFORT Roto EC D650 200 897 932 409 422 1445 1542
 KOMFORT Roto EC D(E)650
G4 panel filter  FP 378x332x48 G4
F7 panel filter  FP 378x332x48 F7
H13 panel filter  FP 378x332x48 H13
VOC sensor   DPWQ30600
External CO₂ sensor  DPWQ40200
Humidity sensor  DPWС11200
Humidity sensor  HR-S
Internal humidity sensor  FS2
Kitchen hood  DAH 251-13
Backdraft air damper  VRV 160
Air damper  VKA 160
Electric actuator  LF230
Electric actuator  TF230
Designation key
Designation key
Serie Unit type Motor type Mounting type   Modification Heater type Nominal air flow [m³/h] Service side Control

Roto: rotary heat exchanger

EC: electronically commutated motor D: Suspended mounting, horizontally oriented spigots

_: Standard (insulation 40 mm)

2: Low-profile (insulation 20 mm)

_: no heater

E: electric heater

250; 350; 650

R: Right

L: Left

S17: thTune control panel

S18: pGD1 control panel