Hitachi FS3 Series, Руководство по обслуживанию, Страница: 217 / 240

4
OPTIONAL FUNCTION
17
¯
Circulator Function at Heating Thermo-OFF
In case that the fan speed is changed to "LOW" tap at
heating Thermo-OFF, there is a case that the room air is
stratified because warm air stagnates near the ceiling. In
this case, it is recommended that the circulator function
explained below be utilized.
<Circulator Function>
The function keeps the fan speed at thermo-OFF at the
same level as thermo-ON. In this case, air movement in the
room will be kept on the same level as thermo-ON,
ensuring a homogenous air distribution. In the case that an
Auto Louver is equipped, this operation will be also held on
when the heating is turned thermo-OFF.
NOTES:
Perceptions of coolness, heat and air flow are subject to
personal tastes and behaviors. It is therefore
recommended to discuss this with customers
thoroughly and then to set the unit accordingly.
°
Enforced 3 Minutes Minimum Operation Time of
Compressor
When a compressor frequently starts and stops in short
intervals, this function should be used to guard the
compressor. By setting this function, the mode of a
minimum 3 minutes operation will be added. (The mode of
a minimum 3 minutes stoppage is standard.) In case of
SET-FREE, this function is standard even when setting is
not available.
NOTES:
When the safety device is activated or the "ON/OFF"
switch is pressed, the compressor is stopped
immediately.
±
Change of Filter Cleaning Time
The period for filter sign indication is set for each indoor
unit model when shipping. The filter sign is indicated
according to the filter cleaning time (Factory-Setting).
However, this filter cleaning time can be changed
depending on the condition of the filter as shown in the
table below.
Period for Filter Sign Indication
Approx
100 hrs Approx
1,200 hrs
Approx
2,500 hrs
No
Indication
In Case of 4-Way
Cassete Type
† ‰ † †
Liquid Crystal
Display on Remote
Control witch
01 b4
02 b4 or
00 b4
v
03 b4 04 b4
‰
: Factory-Setting
†
: Changed Setting Period
v
: In the case of RPK model, the factory setting is 200 hrs.
²
Fixing of Operation Mode
This function is utilized when changes in operation modes
are not required. When this function is valid, the operation
mode which has been set cannot be changed.
³
Fixing of Setting Temperature
This function is utilized when changes in setting
temperature are not required. When this function is valid,
the setting temperature which has been set cannot be
changed.
´
Fixing of Operation as Exclusive Cooling Unit
This function is utilized when exclusive cooling operation is
required. This function invalidates the heating operation
and the automatic COOL/HEAT operation, as the operation
of exclusive cooling unit.
µ
Automatic COOL/HEAT Operation
This function is utilized to operate the unit with changing
cooling and heating operation automatically.
This function is invalid when the outdoor unit is cooling only
model or the function of "Fixing Operation as Exclusive
Cooling Unit" is valid.
¶
Fixing of Fan Speed
This function is utilized to fix the fan speed. When this
function is valid, the fan speed is not changed by the
remote control switch.
·
Remote Control Thermistor
This function is utilized to control the unit by the built-in
thermistor of the remote control switch (remote control
thermistor) instead of the thermistor for suction air. Set this
function at "01" or "02" when utilizing this function.
However, even when this function is set at "01" or "02", the
detecting temperature is abnormal due to the failure of the
remote control thermistor, etc., the thermistor to be used is
changed to the thermistor for suction air of the indoor unit
automatically.
¸
Automatic OFF Timer Setting
This function is utilized to set the OFF timer function
automatically when the unit is started by the remote control
switch. During operation with the automatic OFF timer
setting function, the cancellation of the OFF timer and the
changing of the setting period for OFF timer can not be
performed. However, the OFF timer function is cancelled
when the unit is stopped.
When the unit is operated again after stoppage, the setting
period for OFF timer is the period set by the optional
setting.
The setting condition and the setting period for OFF timer
are as shown below.
Setting Condition Setting Period for OFF Timer
00 Function Invalid
01 1 Hour
02 2 Hour
03 3 Hour
~ ~
22 22 Hour
23 23 Hour
24 24 Hour