Samsung BACnet MIM-B17N User Manual page 53

Control and Monitoring (Continued)
4 Set the control mode.
Control mode is used for DMS2 to set either 'cool only' or 'heat only' mode to indoor
and outdoor units.
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.
When you set the operation mode limit, and if the outdoor unit is HP (Heat
pump) type, DMS2 will automatically change the operation mode limit setting of
all the indoor units connected to same outdoor unit.
If the indoor unit is cooling only model, you cannot set the operation mode limit
to 'heatonly'.
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