Ideal Heating Logic Air DHW IDEPLUHP180DUOPPSZ, Установка и обслуживание

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Section 2 - Product Information
PRODUCT
INFO
22 Installation and Servicing
2.7.6 Cold Start Function
With the Heat Pump in Standby Mode, if at any time a heating
demand is initiated and the primary heating circuit water
temperature is below 17oC, then the Heat Pump will not
commence operation. As at these water temperatures, damage
of the appliance may be caused upon start-up.
The Cold Start Function automatically enables alternative
energy sources to heat the primary heating circuit allowing the
heat pump to resume operation. Dependent upon the system
configuration the following solutions may provide this function.
System with DHW Cylinder:
If there is a DHW cylinder installed, during this event, the
Heat Pump circulator pump and DHW cylinder back up
heater will operate only to increase the primary circuit water
temperature. Once 22 °C is achieved the DHW back up heater
will be terminated, and normal Heat Pump operation may then
resume.
No DHW cylinder:
If no DHW cylinder is installed, a supplementary back up
heater installed within the primary heating circuit must be fitted
to provide this function. In this event the supplementary back
up heater will operate in the same way detailed above and
heat the primary heating circuit water to 22 °C, at which point
the supplementary back up heater will be terminated, and
normal Heat Pump operation may then resume.
Combi - Boiler Back Up:
When using a combustion Combi-Boiler configuration with
no DHW cylinder, the boiler will operate to provide this
functionality. In this event the boiler will operate in the same
way detailed above and heat the primary heating circuit water
to 22 °C, at which point the boiler operation will be terminated
and normal Heat Pump operation may then resume.
Heat Only Combustion Boiler Back Up:
When using a combustion Heat Only Boiler configuration with
a DHW cylinder, no DHW back up heater is required as the
boiler will operate to provide this functionality. In this event the
boiler will operate in the same way detailed above and heat the
primary heating circuit water to 22 °C, at which point the boiler
operation will be terminated and normal Heat Pump operation
may then resume.
2.7.7 Frost Protection
Appliance
If the ambient air temperature is ≤ 1°C, Plant Frost Protection
will be initiated. During this event, the Heat Pump circulator
pump and central heating zone pumps (if applicable) will
operate intermittently to prevent the primary heating water from
freezing.
Condenser
If the primary circuit water temperature is ≤ 4 °C and the
Heat Pump has power but is in Standby Mode i.e., no DHW,
CH or Anti-Legionella demand, Condenser Frost Protection
will be initiated. Firstly, the Heat Pump circulator pump will
initiate, if after a defined time period, the primary circuit water
temperature is still ≤ 4 °C the backup heater will initiate to raise
the temperature to 22 °C. Once this temperature is achieved
the backup heater will be terminated and normal Heat Pump
operation may then resume.
Note: The backup heater utilised in this mode will depend upon
the system configuration (refer to Section 2.7.7 Cold Start
Function for available solutions).
Frost Protection (Dwelling)
If the temperature of the dwelling is ≤ 8 °C, the room frost
protection mode will be initiated to prevent damage to the
central heating system. During this event, the Central Heating
zone pumps will be operate intermittently.