Friedrich PDE07K Series, Руководство по обслуживанию и запасным частям

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19 PB
Service Manual
Technical Information 19
for temperature sensor error , or unit stop s for freeze protection previously, when the start-up condition of outdoor fan is met, indoor fan
will operate at high fan speed for 3s and then turn to set fan speed. If high temperature protection occurs during cooling mode, outdoor
fan is forced to operate at high speed.
When the start-up condition of outdoor fan in heating mode is met, outdoor fan will operate at high
fan speed for 3s and then turn to set fan speed. When the indoor fan starts operation, indoor fan will operate at high fan speed for 3s and
then turn to set fan speed.
ľ
Constant fan: Press this button under cooling or heating mode to turn on or turn off constant fan function. (It is invalid in wired
controller mode) If constant fan mode is on, the fan motor will operate constantly. If constant mode is off, the fan will stop as the load
stops. Fan speed is controlled by fan speed button (If wired controller is connected, fan speed follows the command of wired controller.
The controller will control if the fan shall operate or not).The status will not change when switching modes, turning on unit, turning off unit,
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ing
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if
PHPRU\FKLSLV broken, it defaults to off.
2. Heating mode
Under heating mode, heating mode LED and set fan speed LED is on. Dual 8 displays set temperature. If select displaying ambient
temperature in additional function setting, the dual 8 will display as the display way described in this mode. The set temperature and fan
speed will keep the same when switching modes.
Working condition and process for heating
a.
General type HEAT PUMP TYPE
Operation condition and process (electric heater and compressor can’t operate at the same time)
ķ
When T
preset-5
o
F(3
o
C)
<T
indoor amb.
-T
indoor amb. compensation
”7
preset-2
o
F(1
o
C)
, compressor operates at heating mode. Meanwhile, 4-way valve, indoor fan
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indoor amb.
-T
indoor
amb. compensation
”7
preset-5
o
F(3
o
C)
and the minimum operation time for compressor, compressor and outdoor fan stop operation immediately. 1s
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excluded).When compressor needs to heat, if compressor can’t be started up due to protection function, electric heater will start heating
instead of compressor 15s later. It will stop operation until satisfying the temperature point (customized requirement); When T
indoor amb.
-
T
indoor amb. compensation
”7
preset-5
o
F(3
o
C)
, the electric heater operates. Indoor fan operates at set fan speed.
ĸ
When T
indoor amb.
-T
indoor amb. compensation
•7
2
o
F(1
o
C)
, compressor or electric heater stops operation. Under fan cycle mode, indoor fan
operates at the condition of blowing residual heat; if fan cycle mode is not selected, indoor fan will operate at set fan speed.
Ĺ
When T
preset-2
o
F(1
o
C)
<T
indoor amb.
-T
indoor amb. compensation
<T
2
o
F(1
o
C)
the unit keeps previous operation status.
b.Pure electric heating type HEAT COOL TYPE
Operation condition and process
ķ
When T
indoor amb
-T
indoor amb. compensation
”7
preset-2
o
F(1
o
C)
, the electric heater starts operation and indoor fan operates at set fan speed;
ĸ
When T
indoor amb.
-T
indoor amb. compensation
•7
2
o
F(1
o
C),
the electric heater stops operation. Under fan cycle mode, indoor fan operates at the
condition of blowing residual heat; if fan cycle mode is not selected, indoor fan will operate at set fan speed.
Ĺ
When T
preset-2
o
F(1
o
C)
<T
indoor amb.
-T
indoor amb. compensation
<T
2
o
F(1
o
C),
the unit will keep previous operation status.
3.Auto fan speed mode
a.Auto fan speed in cooling mode
ķ
High speed:T
amb.
+T
indoor amb. compensation
•7
4
o
F(2
o
C)
ĸ
Low speed:T
amb.
+T
indoor amb. compensation
”7
preset
Ĺ
Not change:T
preset
< T
amb.
+T
indoor amb. compensation
< T
4
o
F(2
o
C)
When entering auto fan speed mode, it will operate according to auto high speed
b.Auto fan speed in heating mode
ķ
High speed:T
amb.
-T
indoor amb. compensation
”7
preset-4
o
F(2
o
C)
ĸ
Low speed:T
amb.
-T
indoor amb. compensation
•7
preset
Ĺ
Not change:T
preset-4
o
F(2
o
C)
<T
amb.-Tindoor amb. compensation
< T
preset
When entering auto fan speed mode, it will operate according to auto high speed.
Note: a. Under auto fan speed control in any mode, there will be a delay of 3.5min in minimum when switching the speed of indoor
fan(there is no delay of 3.5min when switching mode).
4.Additional function setting
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FRQ¿JXUDWLRQPRGHLIDGMXVWLQJWKHWHPSHUDWXUHFRPSHQVDWLRQYDOXHE\EXWWRQVWRWXUQWRXQLWRQRURIIFRQGLWLRQWKHORDGZLOOEH
activated after 3s. While if entering unit on or off condition due to the change of the ambient temperature, it can be activated only after
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OPERATION
Function and Control