18
INDOOR UNIT ADDRESSING
For proper system operation, each indoor unit must have a
unique address set from 0 to 63. When setting an address by
remote controller, the outdoor units, indoor units, and MDC
must be powered on. If FE is displayed on the LED screen or
display board, this unit has no address. After setting all indoor
units’ addresses, turn off the power supply to all indoor units to
clear errors.
Indoor units’ addressing can be distributed automatically in the
heat pump system. When dip switch “S6” on the outdoor units’
main PCB board is set to 00 (default set in factory), indoor
units are set for auto-addressing. When powering on for the
first time, it takes 6 minutes or more to finish auto-addressing
each indoor unit. The heat recovery system cannot accomplish
this function at this time.
Wireless Remote Controller (40VM900001) —
Indoor unit addressing can be performed using the wireless
remote controller. When using the wireless controller, the user
must maintain a line of sight with receiver on the indoor unit.
See Fig. 37 for a description of buttons on wireless remote.
Fig. 37 —Wireless Remote Controller
(40VM900001)
Use a tool to press and hold the LOCK button for at least 10
seconds, then press to activate. Click or to select an
address and press to send the setting.
To display an indoor unit address, use a tool to press and hold
the LOCK button for at least 10 seconds, and press to query
the addresses.
Non-Programmable Controller (40VM900002)
When setting an address, connect only one wired controller to
an indoor unit.
Press
ROOM TEMP
and
SWING
simultaneously for three
seconds. If there is no address for this indoor unit, the display
shows
FE# 00
as shown in Fig. 38. Otherwise, the display
shows the current address of the indoor unit.
Fig. 38 —Non-Programmable Controller
(40VM900002) IDU Addressing Menu
Click
TEMP. UP
or
TEMP. DOWN
to change 00 to the de-
sired address as shown in Fig. 39. Press
OK
to confirm and
exit the setting interface.
Fig. 39 —Non-Programmable Controller
(40VM900002) Setting IDU Address
RESET
TIMER ON
TIMER OFF
SWING
AIR DIRECTION
CLOCK
OK
SWING
MODE
FAN
AUTO
COOL
DRY
HEAT
FAN
TEMP
SET
CLOCK
SET
HOUR
FAN SPEED
LOCK C/H
6 – AIR DIRECTION
2 – FAN SPEED SETTING
4 – ADJUST UP
9 – CLOCK SETTING
14 – OK (CONFIRM)
10 – TIMER ON
11 – TIMER OFF
1 – MODE SETTING
3 – ADJUST DOWN
12 – RESET
13 – LOCK
15 – COOL/HEAT
5 – ON/OFF
7 – AIR VERT. SWING
8 – AIR HORIZ. SWING
A40-1734
MODE
FAN
TEMP. DOWN
OK
TEMP. UP
ON/OFF
TIMER
ROOM TEMP.
SWING
#
#
MODE
FAN
TEMP. DOWN
OK
ON/OFF
TEMP. UP
TIMER
ROOM TEMP.
SWING
