© JBG-HT (v.2.0)
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INSTRUCTION MANUAL
– HEAT PUMP
3. DOCUMENTATION
3.1. Description of Monoblock pump operation
A monobloc heat pump is a compact unit containing all the components of the refrigeration system and the heat
exchanger in which the heating medium for central heating and domestic water is heated.
The outdoor unit contains refrigeration components including the fan, evaporator and compressor, condenser,
valves and auxiliary fittings. The compressor (5) pumps hot gas which goes to the four-way valve which performs
the function of switching heating/cooling modes (defrost), then the gas goes to the condenser (6) in which it gives
up heat to the medium (water, glycol) which then goes to the facility for heating or hot water. The condensed,
subcooled medium in the form of liquid goes to the electronic expansion valve (EEV)(4), where expansion takes
place, then goes to the lower heat source (evaporator)(1) the medium takes heat from the environment this is
done by air flow through a fan forced exchanger (2).
The refrigerant in the evaporator evaporates and returns in the gas fraction to the compressor.
The indoor installation is equipped with a three-way valve (3-WAY), which distributes the heated medium for
central heating or hot water purposes (in priority). In the case of very low ambient temperatures and the required
higher temperature for heating purposes, an electric heater is additionally used to raise the temperature parame-
ter of the medium, which also has a protective function in the event of failure of the refrigeration system to ensure
a positive temperature and minimize the risk of freezing of the medium in the condenser.
3.1.1.
Product conformity (CE marking)
CE marking or CE marking placed on a product is a manufacturer’s declaration that the marked product conforms
to the directives so-called New Approach of the European Union.
The declaration of conformity is available for inspection from the manufacturer.
3.2. Schematic of heat pump operation
3.2.1.
Pump operation in heating mode
1
3
5
6
4
2
Fig. 2. Heat pump heating mode
1
Heat exchanger – evaporator,
4
Electronic expansion valve,
2
Fan,
5
Compresser,
3
Four-way valve,
6
Heat exchanger – condenser.
Summary of Contents for ZHHS-01-10K-R290-V5-M
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