Individual Temperature Control In Each Room And Increasing Volume Of Internal Water - Worcester GREENSTORE Instruction Manual

Individual temperature control in each room and increasing volume of
internal water
This solution is used to control the temperature of each room, for example, where thermostatic valves are used on the
radiators in each room. The function of the heat pump is to maintain a temperature in accordance with the heat curve
(depending on outdoor temperature) in the 100 litre primary water storage tank. The water is then distributed from the
store to the heating system. This solution also allows the overall volume of the installation to be increased if the volume of
the heating system is inadequate, for example with one or two fan-assisted radiators.
This system design is intended to ensure that the heat pump is able to continue operating if the fl ow falls below 70% of the
nominal system fl ow.
* Mixed heating system
There is a possibility to control a
second heating system with a mixing
valve. This is recommended when a
combination of radiators and a fl oor
heating system is used.
* Expansion vessel
No valve should be fi tted between
the expansion valve and the
storage cylinder.
19
Connecting the heat pump to the heating system
E10 Central heating system
C11: Expansion vessel
G1 (P1): Radiator pump
Q12: Isolating valve
E20 Heating system
E21: Heat pump
E22: Electric water heater
F21: Safety valve
G2 (P2): Heating system pump
Q21: Diverter valve
V21: Filter heating system
E30 Heat transfer fl uid
F31: Safety valve
G3 (P3): Heat transfer fl uid pump
Q32: Isolating valve
Q35: Air vent (manual)
V31: Filter heat transfer fl uid in
E40 Mixed heating system
G4 (P4): Pump for mixed heating system
Q41: Mixing valve
Q42: Isolating valve
E60 Domestic hot water system
V60: Hot water draw-off
W60: Cold water cylinder inlet
C61: Expansion vessel *
F61: Pressure relief valve
F62: Temperature and pressure relief valve
Q62: Isolating valve
Q63: Pressure reducing valve
Q64: Non return valve
Q65: Tundish
T1 Central heating water
T2 Outdoor
T3 Domestic hot water
T4 Mixed heating system
T5 Room
T6 Compressor
T8 Primary fl ow
T9 Primary return
T10 Heat transfer fl uid (coll) in
T11 Heat transfer fl uid (coll) out