Operation Instructions for Versati III
2.4.17 Control Logic of the Water Tank Heater
[Operation Instructions]
At the commissioning parameter setting page, by touching "Tank heater", it will access to the setting page of
control logic for the water tank heater.
[Notes]
● "Reserved" will be displayed when the water tank is unavailable.
● This setting can be done only when the unit is off.
● This function can be memorized upon power failure.
● Logic 1: NEVER allowed the Unit's Compressor and the Water Tank Electric Heater or the Optional Electric
Heater to work at the same time.
● Logic 2: While Heating/ Cooling + Hot water mode (Hot Water priority) Tset ≥ THPmax + ΔThot water +2, when
water tank temperature reach THPmax, the water tank EH will be ON and start to do hot water, at the same time,
the compressor wil turn to heating/cooling mode, water tank EH and Compressor will be ON together.
2.4.18 Parameter Setting
[Operation Instructions]
At the commissioning parameter setting page, by touching "PARAM.", it will access to the pages as shown
below.
Page of Commissioning Parameters
At this page, select the desired option and then go to the corresponding page.
After that, by pressing "OK", this setting will be saved and then the unit will run based on this setting; or by
pressing "Cancel", this setting will not be saved and quit.
Display
No
Full Name
Name
1
T-HP max
T-HP max
Cool run
Cool run
2
time
Heat run
Heat run
3
time
[Notes]
● For parameters with different defaults at different conditions, once the current condition changes, the
corresponding default also will change.
● All parameters at this page will be memorized upon power failure.
Range
40~55℃
104~131°F
1~10min
time
1~10min
time
Default
50℃ /122°F
3min
[2-way valve Off]
5min
[2-way valve On]
3min
[2-way valve Off]
5min
[2-way valve On]
23
Remark
When "Cool run time" has expired
and temperature difference keeps
at the standby zone, the unit will
stop.
When "Heat run time" has expired
and temperature difference keeps
at the standby zone, the unit will
stop.