Worcester Greenstore 6kW, Инструкция по эксплуатации, Страница: 14 / 36

14
Basic functions - Customer level 1
59
The heat pump is in standby mode.
The heat pump is producing hot water. The present temperature and
temperature at which the heat pump will stop is shown. Note that the
stop temperature is read at the bottom of the heater. The hot water is a
few degrees warmer.
The heat pump and electric heater are running.
The heat pump has received signals that it should produce heating. It
now waits for the restart time to countdown to zero.
Return to the initial menu by pressing one of the buttons or turn the dial.
Set the heating
It is easy to set the heating level on the heat pump. However, before it is
explained how to do this it is important to understand the relation
between the outdoor temperature, return temperature and heat curve
slope. The easiest way to explain the relation is with a heat curve.
Heat curve
The heat curve is used to set the indoor temperature. The heat pump is
controlled by the outdoor temperature. When the weather becomes
colder, the heat pump ensures more heating is produced automatically.
Return temperature:
The return temperature is the temperature of the water that returns to
the heat pump from the radiators/underfloor heating. The flow
temperature of the heat pump is normally 7-10ºC higher than the return
temperature. When the outdoor temperature is -10ºC and curve 4 is set,
the pump attempts to keep the return water at approximately 40ºC.
Outdoor temperature:
The outdoor temperature determines how much heating the heat pump
should produce. A sensor placed outdoors sends signals to the control
unit, which then adjusts the heat pump. The sensor must be fitted to a
North facing wall outdoors.
Curve slope:
The curve slope can be changed to increase or decrease the heating in
the house. The scale is between 0-10.
All alarms
There are many reasons why the alarm occurs. However, there is never a
risk involved in resetting an alarm. All the alarms that can appear in the
menu display are described on the following pages. The descriptions
give an idea about the nature of the alarm and how to rectify it. The text
often refers to different fuses and reset buttons on the heat pump as
shown in the diagram above.
On delivery the heat pump curve slope
is set to position 4. This means that
the return temperature is +35ºC when
it is 0ºC outdoors.
Fuses and reset buttons on the heat pump
List of all alarms:
Motor cut-out compressor
Motor cut-out HTF pump
Compressor temperature
Low pressure switch
High pressure switch
Electric heater
Power failure (single phase)
Single phase incorrect (single phase)
High return temperature to the heat pump
Heat transfer fluid temperature
High heat transfer fluid delta
Sensor fault
Heat transfer fluid temperature in under limit
and heat transfer fluid out under limit
Protective anode
What to do if a fault occurs
Note
TECHNICAL INFORMA
TION
FOR THE USER
FOR THE INST
ALLER
TECHNICAL INFORMA
TION
FOR THE USER
FOR THE INST
ALLER
STANDBY
No rad heat required
No need
for hot water mode
HOT WATER MODE
Heat pump only
Supp. Heat. 53.0°
Present Heat. 42.0°
HEATING MODE
HP and add. heat
Supp. Heat. 45.0°
Present Heat. 44.0°
Heat rad required
Heat pump starts
in 320 seconds
Filter
Cleanable, with isolation valve.
Fuse 1
Reset for motor cut-out compressor.
Fuse 2
Reset switch for the heat pump’s
miniature circuit-breaker.
Fuse 3
Reset switch for the electric heater’s
miniature circuit-breaker.
Fuse 4
Reset button for the electric heater
overheat protection. Note: The button
must be pressed in firmly.
Sight glass