Optional Functions; Electrical Wiring; Dip Switch Setting On Indoor Unit Side - Hitachi PC-ALHZF Installation And Operation Manual

Optional functions

6 OPTIONAL FUNCTIONS
D A N G E R
Turn OFF the power source completely before performing
the dip switch setting for receiver kit. If not, it may cause an
electric shock.
The following switches are on the receiver kit.
EMERGENCY
RUN
COOL
DEF
HEAT
FILTER
TIMER
The dip switch (DSW1) is for the optional function selection. If the optional function selection is required, set the dip switch as follows.
Optional function
Main/sub setting
Identifying of indoor unit
Invalidity of emergency operation
N O T E
Pay attention to the following optional function settings when the function for receiver kit is selected from the remote control switch or
the centralized controller.
• The optional functions "Cooling lower limit for setting temperature" and "Heating upper limit for setting temperature" are not avai-
lable. The setting is available beyond the upper and lower limit for setting temperature from the wireless remote control switch
(PC-ARF).
• The optional function setting "Fixing of setting temperature" is not available. When the operation mode is changed from the wire-
less remote control switch, the indicated temperature on the wireless remote control switch becomes set temperature of the wired
remote control switch.

7 ELECTRICAL WIRING

The details of wiring connection method should be refered to "Installation and operation manual" of indoor unit.

8 DIP SWITCH SETTING ON INDOOR UNIT SIDE

The details of dip switch setting on indoor unit side should be refered to "Installation and operation manual" of indoor unit.
10
Switch "COOL"
Outlet for
connecting cable
Switch "HEAT"
ON
1 2 3 4 5 6
Dip switch (DSW1)
(Factory-setting)
Dip switch setting (DSW1)
1 2 3
O X X
X O X
X X X
PMML0264A rev.1 - 09/2015 - P5416575
N O T E
When the case is closed, pay attention to the outlet position for
connecting cable.
Cover PCB
4 5 6
Change main (OFF setting)/ sub (ON setting) remo-
X X X
te control switches for 2 remote control system.
It functions as B Mode (identifying of indoor unit) of
X X X
wireless remote control switch when it sets to "ON".
O X X The switches for emergency operation are invalid.
(1) Remove the fixing bracket.
(2) Remove 2 fixing screws to
open the case.
Case
Fixing braket
Details