![Johnson Controls DHR18CSB21S Скачать руководство пользователя страница 44](http://html.mh-extra.com/html/johnson-controls/dhr18csb21s/dhr18csb21s_service-manual_2023307044.webp)
Service Manual
35
9
.2.2
Occupancy
function
You must purchase the occupancy module for this function to be activated.
An interface for this
module is reserved on the mainboard of indoor unit.
(1) Interface instruction:
1)
The printing is CN23 and the interface type is JST B3B-PH-K-S;
2)
Electrical characteristic: 1-pin: +12V; 2-pin: detection port; 3-pin: GND; current: 150mA;
3)
Working principle:
W
hen the module detects there is nobody in the room, 2-pin and 3-pin are
short-circuited and they are low electrical level; when there
is
somebody in the room, 2-pin
output is high electrical level.
(2) Function instructions:
In order to achieve this function, set it through wired controller and refer to the following operation
method. It is defaulted that this function is not activated; if this function is set and
occupancy
module is
connected, the unit will control the ON/OFF of unit according to the signal detected by
occupancy
module. When there is nobody in the room and the unit
has a
wired
zone
controller,
icon will be
displayed on the wired
zone
controller; if the unit
has no wired zone
controller, there will be no display.
The unit will control the ON/OFF of unit according to detected information.
(3) Setting method:
With the indoor unit turned off
, press Function and Timer buttons
simultaneously
for 5s to go to the
programming
menu. Press Mode button
until "09" is displayed at the controller.
P
ress ▲ or ▼
button to
adjust. There are 2 selections:
1)
Without
occupancy
function (LCD displays 00)
2)
With
occupancy
function (LCD displays 01)
Choose the second selection and then press Enter/Cancel button to save and exit setting. Now,
occupancy
function is activated. The unit will
maintain
this setting status. The setting value will
be
maintained after a
power failure. The detailed setting is as shown in the Figure
on the next
page.
Содержание DHR18CSB21S
Страница 12: ...Service Manual 3 2 Nomenclature ...
Страница 47: ...Service Manual 38 Figure 2 7 13 ...
Страница 65: ...56 H6 DC fan error Service Manual ...
Страница 73: ...64 DHR48CSB21S Service Manual Service Manual ...
Страница 92: ...83 ...