
4. Installation
According to Reverse Carnot Cycle theory and the same process as normal water source heat pump units, The Evo
Ultra absorbs heat from soil and transfers the heat to water as the soil temperature is generally stable, i.e., the heat
source is stable, the units work capability will not change with the ambient temperature.
4.1 System Installation
• This model can be installed on a concrete base with expansion bolts or installed on the ground or roof by
a steel bracket with rubber cushion. Make sure that the units are horizontally placed.
• The units should be installed at a place convenient for installation and maintenance.
• The units should install shock-absorbing devices in case of the shock transferring to the building.
• Rigid pipelines in the engine room should adopt spring shock-absorbing brackets.
For transit, use four slings longer than 8m when moving the units and use the lifting holes on the bottom board. Put a
cushion block at the places of contact in case of damage.
4.2 Plumbing
When connecting the water pipeline, you cannot exchange the user side pipeline with the heat source side pipeline.
The unit’s user side and heat source side direction should be in accordance with the direction as marked on the units.
Water pipeline resistance out of the units should as minimal as possible.
The pipeline must be clean to prevent jamming. Before packing the insulation layer, a leakage test should be
conducted.
Adopt the same diameter water pipe as mentioned in the user guide for inlet and outlet connection pipe out of the
units. Ensure that the pipeline is full of water and has fine moisture measures when the unit is at work.
The Expansion water tank should be equipped at the highest part of the water pipeline. The water surface of the
expansion water tank should be 0.5m or higher than the highest point of water pipeline.
Choose the insulation water tank with suitable volume according to the units heating and cooling capacity and ensure
the insulation of pipeline out of the water tank.
If the units have no water pump equipped, please choose the proper water pump according to the units water flow
volume on the user guide, making sure the water flow volume satisfies the units requirement. There should be hose
connection equipment between the water pump and units. If the water pump is installed outdoors, there should be
water-proof and anti-freezing equipment.
An automatic exhaust air valve should be equipped at the highest point of the water pipeline in case of air detention in
the pipe; Drainage valve should be equipped at the lowest point of the water pipeline, so it can be convenient for
maintenance and drainage.
A Y-type filter should be installed at the circular water pump inlet port of the user side and heat source side in case
that impurities may damage the units. The Y-type filter should be detachable for cleansing and maintenance.
Softened water can be better for circular water.
The connection of the water inlet and outlet should be flexible to reduce vibration.
Drain out the water in the pipeline when you will not use the units for a long time in case of freezing.
Do not change the set return water temperature and water tank insulation temperature.
Thermometer and water pressure gauge should be equipped at the units water inlet and outlet port for checking.
User side water should be tap water and the hardness should be less than 20. If not, install an electric hydro treater at
the tap water side.