Johnson Controls DHR18CSB21S, Service Manual

Page: 39 / 93

Service Manual
3
0
9
.1.2
Buttons and Display of Central Controller
Figure 2-7-1
9
.1.3 Function Buttons
Table 2-7-1 Functions of Buttons
No. Name Function Description
1 Mode It is used for the switchover among different modes.
2 Fan It is used to set the fan speed, high, medium, low or auto.
3 On/Off It is used to set the on/off status of the indoor unit.
4
▲
①
. Under the single/centralized control status: It is used to set the running
temperature of the indoor unit with max.
86
℉
(
30°C
) and min
.
61
℉
(
16°C
)
;
②
. Under the tim
er
setting status: It is used to set the tim
er
period with max. 24
hours;
③
. Under the clock setting status:
I
t is used to set the hour and
minute.
5
▼
6
Mon
1/9
It is used for the switchover between unit 1 and unit 9;
Under the tim
er
or clock setting status, it indicates Monday.
7
Tue
2/10
It is used for the switchover between unit 2 and unit 10;
Under the tim
er
or clock setting status, it indicates Tuesday.
8
Wed
3/11
It is used for the switchover between unit 3 and unit 11;
Under the tim
er
or clock setting status, it indicates Wednesday.