Midea R410A Domestic Pools & Spas HPWH 50Hz Technical Manual MCAC-HTSM-201409
31
2.6 Water pipe connection of the unit
Water pipe joint specifications
Name
Connective pipe
Outlet water pipe
PVC Φ50
Inlet water pipe
PVC Φ50
Drainage connecting pipe
PVC Φ25
During installation of connective pipe, it must be ware not to let any dust or other foreign
substance intrude into pipe system.
Inlet and outlet water pipes can be installed as long as the water-heating unit has been
fixed..
Thermal insulation materials should be employed to seal up inlet and outlet water pipes.
Before operation, please confirm that the specifications of connective pipes are correct, and
thermal insulation layer has been wrapped on pipes. It requires that all pipes have been
sealed up, and no water leakage has been detected.
2.7 Hydraulic connections
Connect PVC
Φ50 hose inlet and outlet water of unit (according to label instructions) to the
removeable fittings provided with the heat pump.
Connection is established with a by-pass on the pool filtration circuit after the filter and
before the water treatment device:
Hydraulic circuit test pressure: 3 bar.
Hydraulic circuit operating pressure: 1.5bar.