Water Cycle For Space Heating - Hisense Hi-Therma Series Service Handbook

Air-to-water heat pump, split/integra outdoor unit, split indoor unit, integra indoor unit, monobloc

Hide thumbs Also See for Hi-Therma Series:

Table of Contents

Control function

10.2.2 Water Cycle for space heating

Space heating is operated by Water Cycle 1 or combination of Water Cycle 1 and Water Cycle 2.

Cycle 1 will be direct (high temperature for radiator or fan coils operation) and Cycle 2 will be a mixing cycle in order to have

a second temperature control using mixing valve (low temperature for floor heating operation). Additionally, a motorized

valve can be added in order to close direct cycle when not in use . The floor heating loops (Cycle 2) require a lower

temperature than with radiator or fan coils (Cycle 1). To get these 2 water temperature levels, a mixing station is required.

This mixing station is controlled using the indoor unit by means of a mixing valve / additional pump (WP2) /additional water

sensor (Tow2).

Without WPc1 referring to 10.1:

With WPc1 referring to 10.1:

cycle_1_room_1

cycle_1_room_2

cycle_2_room_1

cycle_2_room_2