Heater Priority; Dhw Time Setting - LG Therma V ZHBW056A0 Service Manual

• Heater priority

- Heater priority : determine electric heater and sanitary tank heater on and off..
- Example : If Heater priority is set as 'Main+Boost heater ON', then electric heater and DHW tank heater are on
and off according to control logic. If Heater priority is set as 'Boost heater only ON', then electric heater is never
turned on and only water heater is on and off according to control logic.

• DHW time setting

Determine following time duration : operation time of DHW tank heating, stop time of DHW tank heating, and delay
time of DHW tank heater operating.
- Active time : This time duration defines how long time DHW tank heating can be continued.
- Stop time : This time duration defines how long time DHW tank heating can be stopped. It is also regarded as
time gap between DHW tank heating cycle.
- Boost heater delay time : This time duration defines how long time DHW tank heater will not be turned on in
DHW heating operation.
- Example of timing chart :
DHW tank
heating is enabled
DHW tank heater
is enabled
DHW tank
heating operation
DHW tank
heater operation
❈
1=active / 0=not active
❈
A = Active time
❈
S = Stop time
❈
B = Boost heater delay time
1
0
1
0
S A
1
0
1
B
0
- 52 -
S S
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B
Time