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Control contents:
After fulfill start condition, indoor will operate the force heater operation according to below mode condition
Heat mode Only: Turn ON backup heater to achieve room heat pump target water temperature.
Heat + Tank mode: Turn ON backup heater to heat up room OR Turn ON Heater to Boil up tank water.
Cool mode Only: Water pump and backup heater will OFF in force heater mode.
Cool + Tank mode: Operate pump and internal Heater OR External heater to Boil up tank water.
Tank mode Only: Operate pump and internal Heater OR External heater to Boil up tank water.
* For heat mode condition, backup heater will only turn ON if the backup heater is enable regardless of Room
Heater Selection.
* For tank mode condition, If internal heater selected backup heater will turn ON to boil up tank water.
If external heater selected , booster heater will turn ON to boil up tank water regardless of tank heater selection.
Room Side: (Heat Mode):
When force heater mode start condition fulfilled, turn ON water pump and turn ON backup heater follow below
control.
Operate the 3 ways valve at room side only and turn ON 2 ways valve as heat mode operation.
Turn ON the zone pump and mixing valve if system select 2 zone system or Buffer tank connect YES, control
according to normal zone pump and mixing valve control.
When Force heater mode stop condition fulfilled, turn OFF heater as below condition and turn OFF water pump
after pump delay time.
Backup Heater On Condition:
When Force Heater Control start condition fulfill AND
After water pump operate 2 minutes AND
When water outlet temperature < water set temperature + Remote Control Heater ON Setting AND
20 minutes since previous Backup heater Off AND
Backup Heater Enable
Backup Heater Stop condition:
Force mode off OR
Operation off OR
When water outlet temperature > water set temperature + Remote Control Heater OFF Setting for continuous 15
secs OR
* ON/OFF follow normal heater sequence.
Tank side (Tank mode):
When tank mode select and force heater bit received, turn ON backup heater (INTERNAL) or Booster Heater
(External) depend on the tank heater selection.
If tank heater selection is INTERNAL, follow normal thermo judgement to switch 3 ways valve to tank side and
room side.
If tank heater selection is EXTERNAL, only turn ON booster heater according to tank thermo.
Tank Heater selection is INTERNAL:
Backup Heater ON Condition:
After water pump operate 2 mins AND
When tank temperature < Tank set temperature - [Remocon Set Tank Re-heat Temp] AND
20 minutes since previous Backup heater OFF AND
Backup Heater Enable
Backup Heater OFF condition:
Force mode off OR
When tank temperature > Tank set temperature for continuous 15 secs OR
Tank Operation OFF
Tank Heater selection is EXTERNAL:
Booster Heater ON condition:
Force Heater mode ON AND
Tank temperature < tank set temperature + [Remocon Set Tank Re-heat Temp] - 1°C, AND
20 minutes since previous heater off.
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