Water inlet from
heat pump
Water inlet from
heat pump
Magnesium rod
T/P valve
4-Way water
mixture valve
City water
High temperature hot water export
Water mixture
valve
Magnesium rod
T/P valve
City water
Water to water plate heat
exchanger
Water from
heat pump
Water to
heat pump
A water-to-water plate heat exchanger can be substituted
for the coil inside water tank, as shown below:
51
Sanitary hot water
circulation Pump
4.1.3.Configuration 3
Note: The heat pump unit can control the sanitary hot water circulation pump by connecting it to
port “P3”.
This configuration will ensure a sufficient volume, as well as flow rate, of hot sanitary water, at the
additional cost of adding the plate heat exchanger.
Whichever application is chosen, it is recommended to install a manual mixture valve between the city
water inlet and hot water outlet. This will maximize utilization of hot water from the tank while also
preventing scalding shower water temperatures.
Also, if the tank permits, it is optimal to utilize a 4-way mixture valve, as depicted in the picture below.
This will promote more even and steady distribution of hot water from the tank.
4. Installation Walkthrough
4.1. Sanitary Hot Water Configurations
