Samsung AG042KSVANH, Service Manual

Page: 8 / 142

4
■ Control Logic
1) Simultaneous operation control
Individual capacity control based on Water Out Sensor equipped inside each Unit
Running the capacity control runs all the Units inside the module to control the capacity.
k} tG
㾔⤠
k} tG
㾔⤠
Start OPERATION
When approaching
the configured temperature
All Units will run simultaneously. Each unit will control the compressor
capacity based on its own discharge
water temperature. Units that have reached the configured
temperature will Thermo Off.
Capacity control
Capacity control Thermo Off
Capacity control
2) Rotation operation control
Uses the average value of the Water Out Sensor of the Unit whose pump inside the module is in operation.
Running the capacity control will run 1 Unit first. Later, when the relevant Unit is run to maximum capacity, the next Unit in order of
priority will run.
k} tG
㾔⤠
k} tG
㾔⤠
k} tG
㾔⤠
Start OPERATION – Rising capacity When approaching
the configured temperature
The Unit that has priority of order will be
run first. The Unit with the previous priority of order
will run at maximum capacity. If its discharge
water temperature does not reach the
configured value, the Unit next in order will
run. If the Unit last in order of priority is run at
minimum capacity, and if the discharge
water approaches the configured value,
the Unit last in order of priority will
Thermo Off.
Maximum capacity
Maximum capacity
Capacity control
Minimum
capacity
3) Efficiency priority control
Control-based Water Out Temp: Uses the average value of the Water Out Sensor of the Unit whose pump inside the module is in
operation. Precision control while in low load state / Load response speed prioritized when load capacity is increased
k} tG
㾔⤠
k} tG
㾔⤠
Releasing efficient
operation state
Capacity control after releasing
efficient operation state
Efficient operation
capacity
All Units will reach the efficient operation state.
If the discharge water temperature approaches
the configured temperature, the capacity will be
decreased in order of the Unit whose priority is
the lowest. If the Unit last in order of priority is run at
minimum capacity, and if the discharge water
temperature approaches the configured value,
the last Unit in order of priority will Thermo Off.
k} tG
㾔⤠
k} tG
㾔⤠
k} tG
㾔⤠
k} t
㾔⤠
Start If there is a stop unit
Entering into efficient
operation state
The Unit whose order of operation
priority is highest will run first. The Unit with the previous priority of order
will run in the efficient operation state. If its
discharge water temperature does not reach
the configured value, the Unit next in order
will run. If all Units reach the efficient operation
state, each Unit will run in a capacity
between the efficient operation state
and maximum capacity operation.
Capacity
control
Capacity control Capacity control
Efficient operation
capacity
Capacity control
range
Efficient operation
capacity