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Changing To Demand Setting Mode; Selection Of Demand Function; Selection Of Group To Be Set - Hitachi PSC-A64S Installation And Operation Manual

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INPUT/OUTPUT FUNCTION
16

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.
"5" shows the demand
setting mode.
Only the group with the
master unit already set is
indicated. The group to be set
is flickered.
Demand function
The state of demand setting of each zone is indicated.
ON:There is one or more group with demand setting in
the zone.
OFF:There is no group with demand setting in the zone.

3 Selection of Demand Function.

a. Select the demand function by depressing the
"LOUVER" switch.
b. Depress the "RUN/STOP" switch, and the
flickering indication of louver angle turns ON.

4 Selection of Group To Be Set

The demand function can be set for all the indoor units, each zone or each group.
The " " indication of "GROUP", for which the demand setting is already set, turns ON.
In the case where there is one or more group with demand setting in the zone, the " " indication
of "ZONE" section turns ON.
- Simultaneous Setting for all Indoor Units
a. Depress the "ZONE" switch to make all the zone
Nº. flicker. Then, the minimum refrigerant system
address and the minimum indoor unit address of
the indoor unit, which is set as the master unit, in
all groups are indicated.
- Setting for each Zone
a. Depress the "ZONE" switch and select the zone
to set.
b. Depress the "GROUP"
group Nº to set flicker. Then, the minimum Ref.
Nº and the minimum I.U. Add. of the indoor unit
set as the master unit of all groups are indicated.
- Setting for Each Group
a. Depress the "ZONE" switch and select the zone
to set.
b. Depress the "GROUP"
group to set. Then, the Ref. Nº and I.U. Add. of
the indoor unit set as the master unit of selected
group are indicated.
Ref. Nº. of Indoor Unit Set as Master Unit
of Group To Be Set
By depressing the
"LOUVER" switch, the
indication of louver
angle is changed as
shown in right figure.
[Zone Selection]
Depress the "ZONE" switch, and the flickering
indication of zone Nº is changed in order as
shown below.
*
Only the zone Nº to set is indicated.
*
When selecting the all flickering state (Simultaneous
switch to make the
Operation for all Indoor Units), the groups to set are
automatically fixed at the all flickering state. For
selecting the group, select the indication state except
all flickering.
[Group Selection]
Depress the "GROUP"
flickering indication of group Nº is changed in
order as shown below.
switch to select the
*
Only the group Nº to set is indicated.
The state of demand setting of the
indicated indoor unit is indicated.
"DEMAND" ON: Demand is set.
"DEMAND" OFF: Demand is not set.
Address of Indoor Unit Set as Master
Unit of Group To Be Set
When the "CHECK" indication appears,
the central station is in the check mode.
The state of demand setting of each
group is indicated.
ON: Demand is set.
OFF: Demand is not set.
Only the group with the master unit already set is
indicated. The group to be set is flickered.
All
flickering
switch, and the
All
flickering

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