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8-3.
12) Connection to a Smart Grid network (SG ready)
Hydro Unit Control
The operating mode is controlled through volt free contacts incorporated into the energy meter.
• TCB-PCM03E optional PC board is required.
Connect its connection cable to CN210 port
on the PC board of the hydro unit.
12-1)The Settings
DIPSW2_2 ="ON" : SG Ready control enabled
DIPSW2_3 ="OFF" : External cylinder thermostat non-connected
DIPSW2_4 ="OFF" : External room thermostat non-connected
FC61="0~5"
FC61="6"
FCAC="0~10"
12-2)The operation mode and control summary
S1: Terminal (2) and (3), S2: Terminal (1) and (3)
0: The terminals are opened , 1:The terminals are opened
S1
0
1
0
1
Operation flow and applicable data, etc.
: HP and backup heaters ON when "System Forced ON" mode
: HP operation only when "System Forced ON" mode
: Setting to increase the space heating set point temperature when "System Forced ON" mode
S2
Mode
• Normal operation but with maximum compressor frequency limited to
40.2Hz (night time operation)
0
Restricted Operation
• Back up heater control is active
• Boiler output control active
• The heat pump and electric heaters are FORCED OFF for a maximum of 2
hours during this period.
• The space heating and DHW set points will continue to be displayed on the
0
System OFF
remote controller.
• System safety controls (e.g. freeze protection) will remain active.
• Boiler output control will remain active.
• This signal is not a START signal – only a recommendation to start
• The heat pump and electric heaters are available to operate under normal
control if there is a heating or DHW demand
1
Normal Operation
• There is no restriction on the compressor frequency – the compressor can
operate at maximum frequency if requested by the outdoor unit control
software
• During this period the system is FORCED ON to allow the heat pump and
back up heater to operate
• The space heating set point temperature is increased during this period.
The temperature increase can be adjusted using FCAC.
• If there is a DHW demand during this FORCED ON period then the DHW
1
System Forced ON
set point is increased to the set point used for the DHW boost function
• The hydro unit back up heaters will continue to operate with a modified
control where by the ON/OFF heater delay will be removed
• All other controls will remain active (e.g. FC22, FC1A etc.)
TCB-PCMO3E
Terminal label
Control summary
68
PJ17
CN210
Red
CN211
Black
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