Operation Modes And Functions - ComfortStar CZP09CD Service Manual

If T4≥5 ℃ (41°F) or the compressor starts
running, the preheating function will stop.
Only for TIP24,
Preheating permitting condition:
After T1<=12 ℃ (53.6°F) condition turns on the
outdoor power relay, if T4<=1 ℃ (33.8°F) then
enter preheating.
Preheating mode:
A weak current flow through the coil of
compressor from the wiring terminal of the
compressor, then the compressor is heated
without operation.
Preheating release condition:
If T4≥3℃(37.4°F) or T1>12℃(53.6°F) for 3
minutes or the compressor starts running, the
preheating function will stop.
16.3.8 Condenser high temperature T3
protection
---55°C(131°F)<T3<60°C(140°F), the
compressor frequency will decrease to the
lower level until to F1 and then runs at F1.If
T3<54°C(129.2°F), the compressor will keep
running at the current frequency.
---T3<52°C(125.6°F), the compressor will not
limit the frequency and resume to the former
frequency.
---T3>60°C(140°F) for
compressor will stop until T3<52°C(125.6°F).
16.3.9 Evaporator
protection
---T2<0°C(32°F), the compressor will stop and
≧
restart when T2 5°C(41°F).
---0°C(32°F) ≦ T2<4°C(39.2°F), the compressor
frequency will be limited and decreased to the
lower level
---4°C(39.2°F)≤T2≤7°C(44.6°F),
compressor will keep the current frequency.
---T2>7°C(44.6°F), the compressor frequency
will not be limited.
5 seconds, the
low temperature T2
the

16.4 Operation Modes and Functions

16.4.1 Fan mode
(1) Outdoor fan and compressor stop.
(2) Temperature control is disabled and no
temperature setting is displayed.
(3) Indoor fan can be set to 1%~100%, or low,
medium, high and auto.
(4) The louver operates same as in cooling
mode.
(5) Auto fan:
In fan-only mode, AC operates the same as
auto fan in cooling mode with the temperature
set at 24°C.
16.4.2 Cooling Mode
16.4.2.1 Outdoor fan running rules
T4
A
28℃(82.4°F)
26℃(78.8°F)
B
25℃(77°F)
23℃(73.4°F)
C
22℃(71.6°F)
20℃(69°F)
D
19℃(66.2°F)
17℃(62.6°F)
E
16.4.2.2 Indoor fan running rules
In cooling mode, indoor fan runs all the time
and the speed can be selected as 1%~100%,
or low, medium, high and auto.
The indoor fan is controlled as below:
Setting fan
T1-Td ℃(°F)
speed
4.5(8.1)
3.0(5.4)
H
1.5(2.7)
4.5(8.1)
M
3.0(5.4)
1.5(2.7)
4.5(8.1)
L 3.0(5.4)
1.5(2.7)
Auto fan in cooling mode acts as follow:
For TIP
174
DC_FAN_HI_SPD_ADD
DC_FAN_MID_SPD_ADD
DC_FAN_MIN_SPD_ADD
DC_FAN_SLOW_SPD_ADD
DC_FAN_SSLOW_SPD_ADD
Actual fan speed
H+(H+=H+G)
A H（=H）
B
H-（H-=H-G)
C
M+(M+=M+Z)
D M(M=M)
E
M-(M-=M-Z)
F
L+(L+=L+D)
G L(L=L)
H
L-(L-=L-D)
I