Auto-Mode - Century B-VMH36SD-1 Service Manual

Service Manual - VMH 9/12/18/24 SU & VMH30/36S D Series
When the AC runs in mute mode, the
compressor will run with low frequency. When
the current is more than set value, the current
protection function will be activated and the
compressor will stop.
8.4.3.2 Outdoor fan running rules
The outdoor unit will be run at different
fan speeds according to T4.
For different outdoor units, the fan speeds are
different.
T 4
8.4.3.3 Indoor fan running rules
When the compressor is on, the indoor fan can
be set to high/med/low/auto/mute.
When indoor unit coil temp. is low, the anti-cold
air function will start and indoor fan motor will
run at low speed, the speed can't be changed,
when the temp. is lower than setting value, the
indoor fan motor will stop.
When the indoor temp reaches the setting
temp., the compressor will stop, the indoor fan
motor will run at the minimum speed or setting
speed. (The anti-cold air function is valid). The
indoor fan is controlled as below:
Setting fan
T1-Td℃
speed
H
M
L
E
D
C
B
A
A +
Actual fan speed
H-（H-=H-G)
H（=H）
H+(H+=H+G)
M-(M-=M-Z)
M(M=M)
M+(M+=M+Z)
L-(L-=L-D)
L(L=L)
L+(L+=L+D)
Auto fan action in heating mode:
T 1 - T d + Δ T
8.4.3.4 Defrosting mode
AC will enter the defrosting mode according to
the value of temp. of T3 and the value range of
temp. change of T3 and also the compressor
running time.
During the defrosting mode, the compressor
keeps running, indoor and outdoor motor will
stop, defrost lamp of the indoor unit will be lit.
" ." Will be displayed.
8.4.3.5 Evaporator coil temperature
protection
Decrease
Hold
When evaporator temperature temp. is more
than the setting protection value, the compressor
will stop.

8.4.4 Auto-mode

This mode can be chosen with remote controller
and the setting temperature can be changed
-
between 17°C(62.6°F)~30°C(86°F). In auto
mode, the machine will choose cooling, heating
or fan-only mode according to ΔT.
19
17
Off
Resume