Hitachi FSG Series, Технический каталог

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INSTALLATION OF OPTIONAL REMOTE CONTROLLER
16
/15
4 Demand
This is a remote thermostat signal for selected units. Only
units selected as "DEMAND" will follow this order, below
is the Demand Setting Procedure.
The basic wiring and time chart are shown below.
■
Time Chart
Signal to 2 & 3 of CN2
Control by Central Station
Unit Operation
THERMO ON
NOTE:
Units with Demand set, are always CENTRAL
controlled by Central Station
n
Demand Setting Procedure
1. Changing to Change Mode
Depress the "CHECK" switch for more than 3
seconds, and the central station is changed to the
check mode.
2. Changing to Demand Setting Mode
Depress the "CHECK" switch and change the 7-
segment indication for check to "5" (Demand Setting
Mode). The LCD indication of the central station is as
shown below.
Q R
S
T
U V
Q
"5" shows the demand setting mode.
R
Ref. No. of Indoor Unit set as master Unit of Group
to be set
S
Address of Indoor Unit set as master Unit of Group
to be set
T
When the "CHECK" indication appears, the central
station is in check mode
U
The group already set with demand control is
indicated (
{
is ON: Demand is set;
{
is OFF:
Demand is not set).
V
Only the group with the master unit already set is
indicated. The group to be set is flickered.
3. Selection of Group to be set
Select the group to be set by depressing any of
"GROUP" switch. The flickering indication of group
number is moved every time when any "GROUP"
switch is depressed.
The flickering indication of group number is moved
(ex. When selecting group)
"
{
" and "DEMAND" indications: ON (The demand
control is set).
The Ref. No. and I.U. Add. of the indoor unit set as
main unit of the selected group to be set are indicated.
The "
{
" indication appears at the group already set
with demand control, and the "DEMAND" indication
appears.
4. Setting Procedure
Depress the "RUN/STOP" switch and the selected
group is set with demand control, and the "
{
" and
"DEMAND" indications appear.
(Every time the "RUN/STOP" switch is depressed, the
demand control is set and cancelled alternately.)
5. Simultaneous operation Output
This function is used to pick up the running state of the
units controlled by Central Station. If any unit is
switched ON this output will be ON.
The basic wiring is shown below.
CN2
S1
Time