HISEER GSWW60, Инструкция по установке, эксплуатации и обслуживанию

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Heating working principle:
To set two units in parallel operation, set the primary unit to the required parameters, unit two is to
have 3~5°C difference of ST01,ST02 and ST05 to allow for energy stage control.
Switch on both units’ A/C switches one by one, if the RT parameter is lower than the set values of
both units, then the units will start to heat together. The unit with the lower ST02+ST04 value will
stop first, the other will stop as well when the RT rises above its set value. Then both units will
stop.
The unit with the higher ST02-ST04 value will start first again to heat when the buffer tank’s RT
drops. If this unit can meet the heating capacity then the RT will not drop any further, only this
unit will run as required. If the heating load is bigger than the capacity of one unit then the RT will
continue to drop to below the second unit ST02-ST04 value, the second unit will start increasing
the heating capacity.
Systems Overview (Indoor side)