KOJA Future S, Инструкция по эксплуатации и обслуживанию

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FUTURE® S AIR HANDLING UNIT
OPERATION AND MAINTENANCE
INSTRUCTIONS
15 December 2020 Ver 1.7 (We reserve the right to changes without prior notice) 36
9.5.1 Pump group installation
CAUTION
Pipe connections must be carried out by qualified persons only.
The pump group is install on top of the unit and connected to the inlet and outlet fittings of the heating coil.
•
Check the ventilator unit’s handedness and loosen the pump connectors to rotate the circulator
display to the service side of the ventilator. When the pump is in the correct position, tighten the
pump connectors.
• If the ventilation unit's handedness is right/R, also turn the thermometers (Figure 8.5.1 (3)) to the
other side of the angle gauges (Figure 8.5.1 (9 and 10)) so that they are visible on the service side of
the ventilation unit.
• Check the model of the supplied control valve by comparing the valve to the unit’s technical printout,
attach the control valve to the pump group and ensure the tightness of the connection.
•
Check the joints’ inlet and outlet connections from the unit’s dimensional drawing and join the pipe
connections with gaskets.
• Ensure sufficient support of the pump group with appropriate HVAC brackets.
•
Connect the pump group to the heating network. Flush, fill and bleed the network and ensure the
pump group’s tightness.
•
Connect the pump supply and control cable and the control valve control cable in accordance with
the unit’s connection diagrams. Also refer to Sections 7.9 and 7.10 of this manual.
9.5.2 Pump group commissioning and maintenance
• Ensure that the shut-off valves and line control valves are open.
• When the pump and valve are connected to the power supply and automation, set the pump
adjustment method (e.g. FLOWADAPT) on the pump display and the flow rate according to the unit’s
dimensioning run.
• Ensure correct fluid flow by measuring on the line control valve.
• Ensure that the line control valve does not restrict the flow rate.
• Check for leaks and ensure the operation/direction of control valve.
• Check the operation of the pump group and any leaks every 6 months.
• Bleed and fill the system if necessary.