Viessmann VITOCAL 151-A Installation And Service Instructions Manual page 71

Commissioning the system
Procedure
Extensions
Power-OFF and Smart
Grid
Not available
■
Power-OFF
■
Smart Grid
■
Electric booster heater
Not configured
■
Heating only
■
Only DHW
■
Heating and DHW
■
Digital input 1
No function
■
External demand, DHW
■
circulation pump
External blocking
■
Blocking heating/cooling
■
circuit 1
Digital input 2
No function
■
Fault message input
■
External demand
■
Remote control units
Heating/cooling circuit 1 to
Heating/cooling circuit 4
System configuration
Quieter operation
Function
■
Time program
■
Adjustable by system
■
user
(cont.)
Explanations and references
Activation of power-OFF and Smart Grid:
Connection of floating contacts of the power supply utility (connections 143.4
and 143.5 on the bottom luster terminal in the 230 V~ connection area): See
page 49.
Neither power-OFF nor Smart Grid is connected.
The floating contact for power-OFF is connected (connection 143.4): See
page 49.
Floating contacts for Smart Grid are connected (connections 143.4 and 143.5):
See page 49.
Enabling the built in instantaneous heating water heater
The instantaneous heating water heater is not enabled for room heating or DHW
heating:
Instantaneous heating water heater only is switched on only for frost protection
of the heat pump and the system.
The instantaneous heating water heater only is switched on for room heating,
e.g. if the heat pump output is insufficient.
The instantaneous heating water heater only is switched on for DHW reheating,
e.g. if the set DHW temperature value is not reached with the heat pump alone.
The instantaneous heating water heater only is switched on for room heating
and DHW reheating, e.g. if the heat pump output is insufficient.
Function of the floating contact connected to connection 143.2 on the bottom
luster terminal in the 230 V~ connection area
No floating contact connected
If the connected button is pressed, the DHW circulation pump runs for 5 minutes.
Refrigerant circuit and instantaneous heating water heater are blocked.
If the temperature limiter to restrict the maximum temperature for underfloor
heating circuit 1 responds, the room heating for this heating/cooling circuit is
switched off.
Function of the floating contact connected to connection 143.3 on the bottom
luster terminal in the 230 V~ connection area
No floating contact connected
External appliance fault message, e.g. external heat generator
Heat pump demand with adjustable set flow temperature (parameter 528.0) and
set secondary pump speed (parameter 1100.2)
No remote control
■
Or
Vitotrol 300-E
■
Quieter operation of the outdoor unit: During quieter operation, the compressor
and fan are operated at reduced speed.
Enable/disable quieter operation.
Set the time program for quieter operation: See operating instructions.
Enable whether the time program for quieter operation can be set by the system
user.
Commissioning, inspection, maintenance
71