Installation
16
Hydro Kit
Water cycle minimum requirements
1. For selecting the components of the hydraulic system, be sure they are above the design water
pressure.
2. For the water pipe, diffusely tight water pipes are recommended instead of steel pipes.
3. For the drain pipe size, use the same diameter as the product connected or larger. Always install a
natural drainage so that the drained water does not flows back
4. Install insulated material across the total hydraulic piping to prevent condensation and to prevent
low cooling or heating capacity during heat transfer losses. If the temperature is higher than 30 °C
and the humidity is higher than 80 % the insulation material must be minimum 20 mm thick to
prevent condensation.
5. Install the shut-off valve (1) to block the water by closing the valve when replacing the component
or cleaning.
6. Install an expansion tank (2) based on the water volume of the hydraulic system.
7. Install the drain valve (3) that can be used for draining the water inside when replacing the
component or providing service.
8. Install a magnetic dirt separator (4) at the inlet water pipe If the air separator is not installed there
can be formed air bubbles inside the hydraulic system. Flow error will be showed first on remote
controller, however finally a plate heat exchanger may burst during combined circumstances.
9. Install a circulation pump (5) which meets the water flow specifications mentioned inside product
data book.
10. Install the strainer (6) at the inlet water pipe connection to protect the PHE. Do not charge water
into the water pipe directly during Hydro Kit operation. If the strainer is not installed, component
malfunction of Hydro Kit may occur.
- For the strainer, use one with 30 mesh or above with measurement diameter of 0.8 mm or less.
- Always install the strainer on the horizontal pipe.
11. Install a balancing valve (with flow meter) (8)
12. Install an automatic air separator in the outlet water pipe (9)
13. Install pressure safety relief valve (10) in vertical upright position that meets the design water
pressure to prevent unit or water pipe damage during pressure increase inside the water pipe
system.
14. Install a pressure meter (11) in the outlet water pipe.
15. Install in case of cascade hydraulic systems or bivalent systems a flow-check valve (12) at each
outlet water pipe.
16. Install a buffer tank (13) of at least 10L/kW heating capacity in order to have a correct defrost
cycle, if there is no knowledge about the type and dimensions of the heating system. If there is
no buffer tank installed, the product can be damaged during normal operation or defrost
operation.
17. After product operation for 2 weeks in case of new installation, clean the water filter. In the
beginning of operation small particular dirt from installing process can block the filter which can
lead to damage of the product.
Summary of Contents for Hydro Kit
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