Perfectaire 1PAMSH18-MZO2-16, Руководство по обслуживанию

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If the current frequency is lower than HEAT_F4, the frequency will
not be limited.
After 10s of the compressor start, if the current>IHEAT, the AC will
display the failure for 30 seconds and stop. The AC will restart 3
minutes later.
6.3.7 Indoor / outdoor units communication
protection
If the indoor units cannot receive the feedback
signal from the outdoor units for 2 minutes, the
AC will stop and display the failure.
6.3.8 High condenser coil temp. protection.
When T3>65
℃
(149
℉
)for 3 seconds, the
compressor will stop while the indoor fan and
outdoor fan will continue.
When T3<52
℃
(125.6
℉
), the protection will
release and the compressor will restart after 3
minutes.
6.3.9 Outdoor unit anti-freezing protection
When T2B<0
℃
(32
℉
) for 250 seconds, the
indoor unit capacity demand will be zero and
resume to normal when T2B>10
℃
(50
℉
).
6.3.10 Oil return
Running rules:
1.If the compressor frequency keeps lower than
RET_OIL_FREQ1_ADD for
RET_OIL_TIME1_ADD,the AC will rise the
frequency to RET_OIL_FREQ2_ADD for
RET_OIL_TIME2_ADD and then resume to
former frequency.
2.During the oil return process, the EXV will keep
300p while the indoor units will keep the current
running mode.
6.3.11 Compressor preheating functions
----Preheating permitting condition:
If T4(outdoor ambient temperature)
＜
3
℃
(37.4
℉
) and newly powered on or if T4
＜
3
℃
(37.4
℉
)
and compressor has stopped for over 3 hours,
the compressor heating cable will work.
----Preheating mode:
A weak current flow through the coil of
compressor from the wiring terminal of
compressor, then the compressor is heated
without operation.
----Preheating release condition:
If T4
＞
5
℃
(41
℉
) or the capacity demand isn’t
zero, preheating function will stop.
6.3.12 Compressor crankcase heater
----Preheating permitting condition:
①
When T4<3
℃
(37.4
℉
) within 5 seconds of
being plugged in, the crankcase heater will be
active.
②
When T4<3
℃
(37.4
℉
) and the compressor
is not running for 3 hours, the crankcase
heater will be active.
----Preheating release condition:
When T4
≧
5
℃
(37.4
℉
) or the indoor has
capacity demand, the crankcase heater will stop
work.
6.4 Control and Functions
6.4.1 Capacity Request Calculation
Total capacity Request=Σ(Norm code × HP) /10×
modify rate+ correction
Cooling mode:
T1 Ts
3
1
1
e
c
a
4
2
0
2
3
0
1
f
d
b
Capacity area a b c d e f
Norm code (N) 3 2 1.5 1 0.5 0
Model 9K 12K 18K
HP 1.0 1.2 1.5
Note: The final result is integer.
Plus all the indoor capacity request together, then
modify it by T4
When there’s only one indoor unit