Owner`s manual

Hydraulic diagram

Basic components of the heat pump

Install hydraulic components according to the local requirements analogically to the following examples of

hydraulic diagram. (This example of hydraulic diagram does not contain all closing and safety parts,

necessary for professional installation.)

Version 1: Heat Pump with a Combined stainless flow water heater for DHW located in buffer tank for water

for heating circuit.

This is the most complex solution - system consists of combined multipurpose free flow accumulation tank,

which serves for heating of domestic hot water (DHW) and accumulation of hot water for heating and heating

system, which consists of radiators and underfloor heating. Optional part can be heating using solar

collector.

a) Simple buffer tank for heat pump for heating water circuit with the volume of 400, 500, 600L in PU foam

insulation - very compact (we will deliver). The possibility to connect a solar exchanger. This buffer tank

contains also stainless exchanger for DHW heating. Upper 1/3 of the tank provides DHW heating. Lower

part of the tank provides DHW preheating.

b) 2 pcs of 3-way valve for switching between the upper 1/3 of the tank for DHW heating and between the

lower 2/3 of the tank for heating circuit: ESBE series VRG 131/132 DN size of connection will be specified

later.

c) Electronic control of 3-way valves for tank switching: ESBE series 641 (operation time 30 seconds).

d) Pump Grundfos for water circulation in radiators (if heating with radiators is installed).

e) 3-way valve for equitherm regulation of water temperature in radiators (if radiators are installed): ESBE

series VRG 131/132 DN size of connection will be specified later.

f) Pump Grundfos for water circulation in underfloor heating (if underfloor heating is installed).

g) 3-way valve for equitherm regulation of water temperature in underfloor heating (if underfloor heating is

installed). ESBE series VRG 131/132 DN size of connection will be specified later.

3-way valves for equitherm regulation of water temperature in radiators and in underfloor heating will be

controlled exclusively by electronic control of the type: ESBE series 671 (operation time 240 seconds).

ATTENTION: this configuration cannot be used for cooling mode.