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M-Thermal Mono System
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System Schematic
Figure 1-1.1: System schematic
M-Thermal Mono is an integrated air-to-water space heating, space cooling and domestic hot water heat pump system.
The outdoor heat pump system extracts heat from the outdoor air and transfers this heat through refrigerant piping to the
plate heat exchanger in the hydronic system. The heated water in the hydronic system circulates to low temperature heat
emitters (floor heating loops or low temperature radiators) to provide space heating, and to the domestic hot water tank
to provide domestic hot water. The 4-way valve in the outdoor unit can reverse the refrigerant cycle so that the hydronic
system can provide chilled water for cooling using fan coil units.
The heating capacity of heat pumps decreases with ambient temperature. M-Thermal Mono can be equipped with a
backup electric heater to provide additional heating capacity for use during extremely cold weather when the heat pump
capacity is insufficient. The backup electric heater also serves as a backup in case of heat pump malfunction and for
anti-freeze protection of the outside water piping in winter.
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