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Cooling mode (TCH = C)
When TPV (temperature-present value) is higher than TS + TD
(temperature-set value + temperature dierential), will appear,
work1 will be turned on, and cooling will begin;
When T
PV (temperature-present
value) is lower than TS (temperature
-set value), will disappear, work1
will be turned o, and cooling will
stop.
For example: TS = 15°C, TD = 5°C, as
shown in Fig. 8.
4.1 Temperature Setting - TCH, TS, TD
4. Function Description
Heating mode (TCH = H)
When TPV (temperature-present value) is lower than TS - TD (tempera-
ture-set value - temperature dierential), will appear, work1 will be
turned on, and heating will begin;
When T
PV (temperature - present
value) is higher than TS (temperature
-set value), will disappear, work1
will be turned o, and heating will
stop.
For example: TS = 15°C, TD = 5°C, as
shown in Fig. 9.
WORK1 is a temperature socket and the time interval from its power-o
to power-on again should meet the time requirement for TPT. If not, or
will flash.
This protection time requirement should also be satisfied when the
controller is just powered on.
4.2 Temperature Protection Time - TPT
t
°C
20
TS=15
TD=5
WORK1 On
WORK1 O
Fig. 8
TD=5
WORK1 On
WORK1 O
t
°C
10
TS=15
Fig. 9
-9-
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