Installing The Hydro Unit Or The Hbc Indoor - Mitsubishi Electric HYBRID CITY MULTI Series Manual

2. Installation restrictions

2-2. Installing the Hydro unit or the HBC indoor

 When installing Hydro unit/HBC in machinery room or small room, take safety measures in accordance with the European
Standard, based on the system refrigerant amount and the room volume as shown in the figure 2.
(The installation restrictions can be simply found by using the flowchart.)
Refrigerant concentration and required quantity of safety measures
Figure 2
(height of ceiling space = 1.8 m)
80
70
60
At least two
50
safety measures
40
are required.
30
20
10
0
0
 Do not place an ignition source in a space where Hydro unit/HBC is installed or adjacent spaces not shielded by firewalls.
Examples: Lighters, combustion heaters, combustion boilers, and combustion cookers
 All of the above-mentioned restrictions apply not only to new installations but also to relocations and layout changes.
MEES18K085
NG (ISO 5149)
At least one
safety measure
is required.
Construction guidance
50 100 150 200 250 300 350 400 450 500 550 600 650
Room volume [m 3 ]
SAFETY HANDLING FOR R32
5