12
Energy-Saving Operation
English
Ener
gy
-Sa
ving Oper
ation
TDM (Time-Division Multi) Variables (TDM product Only)
Press the
button, press the
,
or , button to select
Priority A2A
, and then press the
button.
Setting FSV #5033 to '0' becomes 'Priority A2A', and setting to '1' becomes 'Priority DHW'.
࡙
Under the installation of both A2A (Air-To-Air type air conditioner) and A2W (Air-To-Water type hydro
unit) at the same time, our outdoor machine can supply its full capacity to the operating indoor
machines (including A2A or A2W). If there are simultaneous operating demands from many A2A
machines with A2W, the priority of controlling the outdoor machine (ex: compressor frequency) will be
given to A2A, because of their fast response for use’s comfort. Only the remaining capacity of outdoor
machine will be given to A2W during A2A’s normal operation. In this case, it might take very long time
for A2W heating, so the outdoor machine will alternate the controlling priorities between A2A and A2W
with time basis.
࡙
Priority maximum operation time (at FSV #5033=0): FSV #5031 (Default 30 min., Range 10 ~ 90 min.),
After elapsing A2A maximum time, the outdoor machine will operate only for A2W to speed up the A2W’s
heating/cooling performance, even though there are A2A’s continuous operation demands.
࡙
Non priority minimum operation time (at FSV #5033=0): FSV #5032(Default 5 min., Range 3 ~ 60 min.),
in this minimum time, the outdoor machine will operate only for A2W, even though there are no more
A2W’s continuous operation demands.
<Operating specifications of Time Division Switching (TDS) in accordance with FSV #5033 setting
(In case of the A2A & A2W simultaneous operation is ON)>
FSV setting A2A C A2W Cooling A2A C A2W Heating A2A H A2W Cooling A2A H A2W Heating
A2A Priority
(#5033=0)
A2A Cooling
A2W Cooling
Same cooling Mode
TDS Control
A2A Cooling
A2W Cycle Off
(The heater just
operates without
heating.)
Cooling Operation
A2A Heating
A2W x (Not operation)
Heating Operation
A2A Heating
A2W Heating
Same heating Mode
TDS Control
DHW Priority
(#5033=1)
Same with A2A
Priority setting
A2W Heating
A2A Cooling
(H Cooling)
TDS Control
Same with A2A
Priority setting
Same with A2A
Priority setting
࢘
A2A : Air to Air, A2W : Air to Water
ࣕ
When DHW Priority is enabled, hot water (heating) operation is given priority only if the A2A & A2W
simultaneous operation is on. Other operations are the same as when A2A Priority is enabled.
CAUTION
࡙
While A2W is in operation, A2A does not operate. This is a normal operation.
࡙
While A2A or A2W is not in simultaneous operation, you can use any mode without operation mode
restriction.