Kampmann Venkon 61, Assembly, Installation And Operating Instructions

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Venkon
Assembly, installation and operating instructions
32
6.5 Installation
Actuator with ‘First Open’ function
When delivered, the actuator is normally open in a de-energised state, thanks to the First Open function. This enables
heating mode to run even if the electric wiring is not yet completed.
When subsequently commissioned and with the application of power (for longer than 6 minutes), the First Open function
is automatically unlocked so that the actuator becomes fully operational.
0,5 mm
> 0,5 mm
< 0,5 mm
Power on
> 6 min
Power off
Fig. 27: “First Open” function
Hydraulic connection
Note the following points when connecting the hydraulic side:
Install and test safety components (expansion vessels, pressure relief valves and overflow valves).
Route condensation lines with a sufficient cross-section without bends and narrow sections with a gradient to the in situ
waste water pipe.
Allow adequate space for the air flow (air inlet and outlet).
Additionally consider the following point with cooling mode:
Provide continuous vapour-tight insulation on all components that carry water (pipework, valves, connections) as far as
the unit.
Select appropriate pipe brackets (cooling clamps) for cooling mode.
Dimension the diameter of the condensate line appropriately.
Protect any traps (if fitted) in the condensate line from drying out.
6.5.1 Connection to the pipe network
The flow and return connections are located as standard on the left side of the unit, seen from the front panel.
Route the pipes so that no mechanical stresses are transferred to the heat exchanger and to ensure that the unit can be ac-
cessed with ease for maintenance and repair work. Proceed as follows when connecting up the unit's hydraulic pipework:
Shut off the heating/cooling medium and prevent it from being opened accidentally before connecting to on-site pipe-
work and making the hydraulic connections on the basic unit, as there is a danger of scalding from escaping heating me-
dium!
With cooling units there is a danger to the user from cold temperatures and a danger to the environment from the use of
glycol. Take appropriate safety measures.
Remove protective caps from the flow and return.
With cooling mode, route pipes and valves directly over the side condensation tray (accessory) to drain any condensation
produced on the pipes during cooling mode into the tray.
Seal and tighten the connections. Prevent the connection nuts from shearing and twisting.
When connecting the unit to the on-site pipework, make sure that you use a suitable tool to hold the unit's water con-
nections in place!
Make sure that the pipes can be vented.
Use suitable insulating material, impermeable insulating material for cooling units.
Tighten all threaded connections once the pipes have been fitted and check that they are not under any tension.