Heat Pump Diagram (Model Hp270-2: -10ºc / +35ºc); Operation Modes Conditions - Bosch HP270-2 Technical Manual

Start Up Condition:
T < (T – 3ºC)
top set
Operation Modes
Applicable to HP-2 with software version:
HPAF0501 / 0502 / 0503 (-10ºC / + 35ºC models)
HPAF0701 / 0702 / 0703 (+5ºC / +35ºC models)
Operation Mode
Combi Mode
Conditions (Man / Aut)
Heat Pump Mode
Conditions (Man / Aut)
Electric Heater Mode
Conditions (Man / Aut)
Full Mode Conditions
Page 7 from 56
T
fins
T
top
Pict.3 – Heat Pump Diagram (Model HP270-2: -10ºC / +35ºC)
Evaporator Compressor
ON if compressor is ON if -10ºC < T
ON
Note: If Duct On and T
starts 2 min before and T
compressor and if
Duct Off starts 1
min before
compressor in order
to update air ON if -10ºC < T
temperature value
and T
OFF OFF
ON if compressor is ON if -10ºC < T
ON:
Note: If Duct On and T
starts 2 min before and T
compressor and if
Duct Off starts 1
min before
compressor in order
to update air
temperature value
Table 2 – Operation Modes Conditions
6-720-821-364 SM HP270 – 250 - 200 2016/12 en
Solenoid
< OFF
air
+35ºC
< 55ºC
bot
< 60ºC
top
< OFF
air
+35ºC
< 60ºC
bot
OFF
< OFF
air
+35ºC
< 55ºC
bot
< 60ºC
top
T
air
Stop Condition:
T ≥ T
top
T
bottom
module
tank
Pump E-Heater
ON if compressor ON if compressor
is ON or cannot work due air
1 min ON temperature
everyday if conditions
compressor is (T < -10ºC or T
air
OFF
or Tbot > 55ºC or T
top > 60ºC
OFF
1 min ON every ON
hour
ON if compressor ON
is ON or
1 min ON every
hour if E-heater
ON when
compressor is
OFF
set
>
air
35ºC)