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3
1
Service Manual
Notes:
(1)
When the Blow function is activated, if turning off the unit by pressing On/Off or by the remote controller, the indoor fan will run at
the low fan speed for 2 min, with “BLOW” displayed on the LCD. While, if the Blow function is deactivated, the indoor fan will be
turned off
immediately
.
(2)
Blow function is unavailable in the Fan or Heating mode.
3.11 Other Functions
a. Lock
Upon startup of the unit without malfunction or under the “Off” state of the unit, press ▲ and ▼ at the same time for 5s
until
the wired
controller enters the Lock function. In this case, LCD displays
.
After that, repress these two buttons at the same time for 5s to quit this function.
Under the Lock state, any other button press
ed
won’t get
a
response.
b. Memory
Memory switchover: Under the “Off” state of the unit, press Mode and ▲ at the same time for 5s to switch memory states between
memory on and memory off. When this function is activated, Memory will be displayed. If this function is not set, the unit will be under the
“Off” state after power failure and then power recovery.
Memory recovery: If this function has been set for the wired
zone
controller, the wired
zone
controller after power failure will
resume its original running state upon power recovery. Memory contents: On/Off, Mode, set temperature, set fan speed and
l
ock
function.
4. Installation and Dismantlement
4.1 Connection of the Signal Line of the Wired
Zone
Controller
● Open the cover of the electric control box of the indoor unit.
● Let the single line of the wired
zone
controller through the rubber ring.
● Connect the signal line of the wired
zone
control
ler
to the 4-pin socket of the indoor unit PCB.
● Tighten the signal wire with ties.
● The communication distance between the mainboard and the wired
zone
controller can be up to 20 meters (the standard distance
is 8
meters).
4.2 Installation of the Wired
Zone
Controller
1
PVC Pipe
3
4
5
2
Fig.4.1 Accessories for the Installation of the Wired
Zone
Controller
No.
1
2
3
4
5
Name
Socket box embedded
in the wall
Soleplate of the
Wired
Zone
Controller
Screw M4X25
Front Panel of the
Wired
Zone
Controller
Screw ST 2.9X6
Summary of Contents for DHP30NWB21SDCP30NWB21SDHP36NWB21SDCP36NWB21S
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