Samsung MIM-B17 User Manual page 52

Control and Monitoring (Continued)
Set the control mode.
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 If you set the control mode, indoor unit operating in limited operation mode will
be automatically set to operate in pre-set control mode. You can set the different
control mode to each of the indoor units.
- Cooling only indoor unit: You can select fan or cool mode.
- Heating only indoor unit: You can select fan or heat mode.
(Ex: When the indoor unit with fan mode is changed to heat mode, DMS2 will
perceive it and control the indoor unit in fan mode.)
 ERV PLUS doesn't operate Fan mode, so it operates only Cool or Heat mode in the
'cool only' or 'heat only' limit mode.
Note  Mixed operation can occur even if you set limit mode.
 If the indoor unit with operation mode limit is in mixed operation, DMS2 will
solve the problem automatically by controlling it in control mode.
 In the following circumstances, all indoor units under the same outdoor unit
should be set to the same limit mode. Mixed operation can occur continuously
when you set some of indoor unit to cool only and the other to heat only.
- If the centralized controller is MCM-A202 and is in group mode
- If the centralized controller is in group mode and the interface module is
MIM-B13 or MIM-B04A
 Except above  circumstances, DMS2 changes the limit mode of all indoor units
under the same outdoor unit to same limit mode.
- If the centralized controller is in group mode and is above MCM-A202A and all
the interface modules under the centralized controller are above MIM-B13A
- If the centralized controller is in individual mode
 If you set the cooling only indoor unit's limit mode to heating only, DMS2 may
display Heating  Cooling alternately.
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