M thermal Mono
4 202005
Midea M thermal Mono Engineering Data Book
1 M thermal Mono System
1.1 System Schematic
Figure 1-1.1: System schematic
M thermal is an integrated air to water heat pump system which is one-stop solution for space heating, space cooling and
domestic hot water, 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 dropping. 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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