Trane 4TXK6524G1000AA - Page 166

9.4.3 Condenser overheat protection
In order to realize low pressure protection, the low pressure is controlled by simulating evaporating temperature:
When cooling, compare the evaporating temp. with the compressor suction temp. and choose the lower one (Teva
c) to simulate judgment.
When heating, you can judge through comparing defrost temp. (Te) with environment temp. (Tc) and choose
the lower one (Teva h) .
it happens 3 times in 60 minutes, unit will stop
and alarm for ever. It will disappear if unit back
to power.
135
Teva_c
Normal run
ning
The lowest running frequency 20HZ
The lowest
running frequency 20HZ
The lowest running frequency 20HZ
he
t
in
g
fr
q
y 20
If it lasts 5 seconds, unit will stop and Alarm.
After standing by 3 minutes, unit will restart. If
it happens 3 times in 60 minutes, unit will stop
and alarm for ever. It will disappear if unit back
to power.
-
25°C
-
30°C
-
35°C
-
40°C
-
45°C
Teva_h
Normal runni
ng
The lowest running frequency 20HZ
The lowest running frequency 20HZ
The lowest running frequency 20HZ
If it lasts 5 seconds, unit will stop and Alarm.
After standing by 3 minutes, unit will restart. If
-
30°C
-
35°C
-
40°C
-
45°C
-
50°C