Page 4
DESIGN
INTRODUCTION
Torrent HP Models
The Torrent HP is insulated to a very high
standard using high density HCFC free foam
cased in a steel shell and therefore has an ozone
deletion potential (ODP) of zero and a global
warming potential (GWP) of 1.
The specifi cation of the models is listed in table 1
and the model selection guide is shown in table 2.
The hot water performance of the Torrent HP
depends upon the store temperature as shown
in fi gures 3, 4 and 5.
The suggested model sizes are based on typical hot
water usage and the store charged to about 65°C. If
the store charge temperature is going to be lower,
then a larger model should be considered.
This is especially important where the heat
pump alone is unable to charge the store
to 65°C as is likely to be the case with a heat
pump. If the immersion element is used to raise
the temperature of the store, then a suitable
control system should be used to ensure the
immersion element does not operate until the
heat pump has raised the store to the maximum
temperature, or the overall effi ciency of the
system will be reduced.
Additional thermostat pockets are provided for
this purpose and a schematic wiring diagram is
shown in fi gure 10.
When selecting a solar model, it is important
to check that the dedicated solar volume
(shown in table 1) is suitable for the fl oor area
of the dwelling to ensure compliance with the
Building Regulations.
The Torrent HP models are designed to be
heated directly by the heat pump and the
central heating can be supplied directly from
the heat pump as shown in fi gure 6 or from a
thermal store as shown in fi gure 7.
The Torrent HP-solar models are designed
to be heated directly by the heat pump and
indirectly by the solar thermal system as shown
schematically in fi gures 8 and 9.
All models are fi tted with a 3kW immersion
heater for boosting the store temperature
(if necessary) and some models can also be
connected to a solid fuel appliance (e.g. wood
burning stove) as well as the heat pump. All
Torrent HP models are supplied with following
equipment as standard: -
• 1 feed and expansion cistern complete with
ball valve and fl oat
• 1 3kW immersion heater (230Vac, 50Hz)
• 2 store thermostats
Overflow pipe
Heat pump - Flow
Hot water outlet
Cold mains feed
Adjustable thermostatic
mixing valve
Wood burning stove
- Flow
Wood burning stove
- Return
Heat pump - Return
Central heating
- Flow
Central heating
- Return
Immersion heater
Heat pump
control thermostat
Heat pump
control thermostat
Overheat
thermostat pocket
Figure 1 : Torrent
HP
F & E Cistern
F & E Cistern
Overflow pipe
Heat pump - Flow
Hot water outlet
Cold mains feed
Adjustable thermostatic
mixing valve
Wood burning stove
- Flow
Wood burning stove
- Return
Heat pump - Return
Central heating
- Flow
Central heating
- Return
Immersion heater
Heat pump
control thermostat
Heat pump
control thermostat
Overheat
thermostat pocket
Figure 1 : Torrent
HP
F & E Cistern
F & E Cistern
Overflow pipe
Hot water outlet
Cold mains feed
Adjustable thermostatic
mixing valve
Central heating
Flow
Central heating
Return
Immersion heater
Heat pump
control thermostat
Overheat
thermostat pocket
Heat pump - Flow
Wood burning stove
- Flow
Wood burning stove
- Return
Heat pump - Return
Solar heating - Flow
Solar heating - Return
Solar sensor pocket
Heat pump
control thermostat
Overflow pipe
Hot water outlet
Cold mains feed
Adjustable thermostatic
mixing valve
Central heating
Flow
Central heating
Return
Immersion heater
Heat pump
control thermostat
Overheat
thermostat pocket
Heat pump - Flow
Wood burning stove
- Flow
Wood burning stove
- Return
Heat pump - Return
Solar heating - Flow
Solar heating - Return
Solar sensor pocket
Heat pump
control thermostat
Содержание THP180 sol
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