Emerson Dixell iProChill IPC115D Application Manual page 10


Complete management of pump down function:

With dedicated pressure switch

Timed

Via the low pressure switch

Via the low pressure transducer
Circuit unloading function:

From high evaporator inlet water temperature

From low evaporator outlet water temperature

From high condensing temperature/pressure

From low evaporator pressure
Anti-freeze function:

From low evaporator temperature

From low condenser temperature

From digital input as anti-freeze alarm

Active with four heaters
Domestic hot water production function:

From low temperature of domestic hot water control probe

Take effects by compressors and heaters working with step regulation

Manage domestic hot water pump and valves
Antilegionella function:

From RTC time band setting

Take effects by domestic hot water production
Solar panels water pump management:

From high solar panel NTC temperature probe temperature

Manage solar panel water pump and solar coil enabling/exclusion ON/OFF valve
Free-cooling function:

From high system water inlet temperature and low external air temperature

Manage Free-cooling ON/OFF valve and Free-cooling ON/OFF fan

Mange modulating output free-cooling mixer valve and hot water three-way valve
Controlled loads maintenance signal function:

Compressors

Evaporator pumps

Condenser pump
Circuit auxiliary relay function:

Four completely configurable relay outputs, also released from normal working of the unit controlled,
managed by means of NTC or PTC temperature probes or with 4÷20mA – 0.5 Volt pressure transducer
Weekly working in energy saving mode:

Up to three daily time bands (devices with RTC option)

From digital input
Weekly working with automatic switch on and switch off:

Up to three daily time bands (devices with RTC option)
Dynamic set-point function:

Managed by NTC or 4÷20mA input
Changeover function:

Automatic changeover between cooling and heating by NTC input
Remote OFF function:

From configurable digital input
Remote heating cooling function:

From digital input with configurable logic
Supply fan hot start function:

Air/air unit
Defrost management:

In temperature in pressure or with both (combined control)

Forced defrost for start-up with low external air temperatures

From digital input or timed

Manual using the relevant key

By hot gas or fan only
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