Unit Control
65
from the thermostat.
③ If “Thermostat” is set to “On”, the control will automatically disable some functions concerning
timer, and run in accordance with the mode set by the thermostat. In this case, the running
mode is unchangeable and the ON/OFF key operation of the control is ineffective.
④ When this setting is saved successfully, it will be memorized upon power failure.
⑤ Under the “Air+hot water” mode, the unit can perform water heating even though the
thermostat is set to “Off”.
⑥ The state of the Thermostat can be changed when the unit is turned off.
3.2.2.20 Assistant Heater(Assis. Heater)
There are three options for the assistant heater, “ 1 group”, “2 groups” or “Without”.
[Operation Instructions]
Go to the
FUNCTION
page and locate “
Assistant heater
”, then, configure it through the Up/Down
key to “1” or “2” or “Off”.
[Notes]
It will be memorized upon power failure.
3.2.2.21 Other Heater
It can be configured to “
With
” or “
Without
” through the wired controller.
[Operation Instructions]
Go to the
FUNCTION
page and locate
Other heater
, then, configure it through the
Up/Down
key
, “
With
” or “
Without
”.
[Notes]
It will be memorized upon power failure.
3.2.2.22 Chassis Heater
The user will decide if to activate or deactivate the chassis heater. Generally it is suggested to
activate it under low environment temperature, “
Heat
” mode or “
Hot water
” mode to prevent the chassis
from being frozen.
[Operation Instructions]
Go to the
FUNCTION
page and locate “
Chassis Heater
” then, configure it through the
Up/Down
key , “
On
” or “
Off
”.
[Notes]
It will be memorized upon power failure.
2.2.2.23 Tank heater
When the water tank is installed, it is suggested to activate it. In this case, the water tank will go to
the standby status and will start after the control program has made this decision based on the actual
demand and the environment temperature.
[Operation Instructions]
Go to the FUNCTION page and locate “Tank heater” then, configure it through the Up/Down key
, “On” or “Off”.
[Notes]
It will be memorized upon power failure.
2.2.24 Plate heater
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