76
13.13 Electric Heater Control 1
Starting
condition
o
When all condition (1+2+3+4+5+6+7) are fulfilled.
Operation
ON
Indoor
Heating
mode
Thermostat
ON
Temperature
different
control
Example:
a. When air conditioning is switch ON,
Remote controller setting =28°C
Intake air temperature = 26°C
Temp difference = 28-26 =2°C
Heater ON
b. After a while when
Remote controller setting =28°C
Intake air temperature = 27°C
Temp difference = 28-27 =1°C
Heater OFF
c. After a while when
Temp difference more than or same as 4°C
Heater ON
Intake air temperature control
Evaporator pipe sensor control
Indoor Fan speed more than or same as Lo Fan
Control
content
o
Electric heater will be switch ON when all condition for starting condition fulfilled.
o
Once Electric heater switched ON, It will operate at least 3 minutes.
When air conditioning is
switched ON
Heater ON
Temp difference
(Remote controller setting -
Intake air temperature)
+4
+1
Heater OFF
ON by
Temp difference
≥
4.0deg
OFF by
Temp difference
≤
1.0deg
When air conditioning is
switched ON
Heater ON
Heater OFF
29
Intake air temperature [°C]
26
When air conditioning is
switched ON
Heater ON
Heater OFF
60 (
β
)
Evaporator pipe sensor
[°C]
56 (
α
)
