Noise emissions
All units operate with extremely low noise emission levels. The compressors have anti-vibration mounts
as well as vertical discharge fans that direct noise upwards, away from surrounding buildings and
property.
Thermal/Acoustic Insulation
The inside of the evaporator area and the heating supply/accessory area are fully insulated. The
insulation is 5 mm thick.
1.1.2 Operating diagram
1. VIR indoor unit
A. Air from indoors
2. VCH outdoor unit
B. Air to indoors
3. Indoor fan
C. Possibility of air to
indoors (optional)
4. Outdoor fan
5. Filter
6. Indoor coil
7.
Optional:
water coil,
heating
resistor, etc.
D. Air to outdoors
E. Air from outdoors
F.
Possibility of air to
outdoors (option‐
al)
8. Compressor
9. Outdoor coil
1
9
3
5
6
7
A
B
C
F
E
2
B
D
8
4
1
User manual
1.1
General description of the unit
4
Summary of Contents for VCH-20A
Page 3: ...1 User manual ...
