Low-energy ventilation
unit with heat recovery
© Vallox
1.09.420 EN
14.5.2013
Vallox
121
MC
1 Extract air fan
2 Supply air fan
3 Post-heating radiator
(electric 900 W)
4 Heat recovery cell
5 Outdoor air fi lter F7
6 Outdoor air fi lter G4
7 Extract air fi lter G4
8 Automatic summer/winter damper
9 Safety switch
10 Measurement outlets
(behind an opening door)
11 Adjustment of the relationship
between supply and extract air
12 Adjustment of post-heating
13 Speed selector switch
(1–4, option)
13
Code
3561
Models
VALLOX 121 MC R
VALLOX 121 MC L
Operating, maintenance and technical instructions
10
1
2
3
4
5
6
11
12
8
7
9
Electrical connection
230V 50Hz = 5.7A
Degree of protection provided by enclosures IP 34
Fans
Extract air
0.119 kW 0.9A 105 dm³/s 50Pa
direct current (DC) Supply air
0.119 kW 0.9A 101 dm³/s 50Pa
Heat recovery
Cross-counter fl ow heat recovery cell,
η
>80%
Heat recovery bypass
Automatic
Electric post-heating unit
900 W, 3.9 A
Fans
Supply air
G4 and F7
Extract air
G4
Weight
60 kg
Ventilation control
Simple Control controller (option)
PTXPA Slim-Line SC cooker hood (option)
Fireplace switch (option)
TECHNICAL DATA
The fi gure shows the R model
