Mitsubishi HMA100V Technical Manual page 258

Manual shunting
When indoor unit is set to emergency mode
switch SF, the heating control system is not in operation, and
is why manual shunt operation is required.
1.To change a position of valve, depress a button
and lock it by pressing a hock shown in the photo.
2.Turn the mixing valve to the desired position by hand.
3.When recovered, press a button to unhook, so that the
valve is controlled by a system.
In the emergency mode, the valve position should be set as follows
<HMA100V, HMA100VM>
QM30
QM31
QN11
<HMS140V>
QN11
QM30
QM31
on the main
button
<Valve position of emergency mode>
QM30
<Valve position of emergency mode>
QM31
- 60 -
Indoor unit installation
hook
QM31 QN11
QN11
QM30
'10 • HM-T-149A
Installation
30