Ochsner Air Eagle 414, Руководство по эксплуатации и установке

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BA_OCHSNER AIR EAGLE_414_717_V06_EN.docx Page 18 of 76
Venting the system
Figure 19: Indoor unit air vent valve
CAUTION
Close the valve cap after venting.
Safety valve
NOTE
Water will escape when the safety
valve is opened. Route the drain hose
into the sewage drain at the rear of the
indoor unit. The drain must not be
permanently connected to the sewage
drain! A funnel with a siphon must be
provided.
- Size the drain hose to ensure water can drain
freely when the safety valve is fully open.
- Ensure that the safety valve drain hose is open
to the atmosphere.
-
Route the safety valve drain hose with a
continuous slope to the drain.
-
Secure the drain hose to prevent movement
when water is running out.
Expansion vessel/system pressure
Preparation for filling:
A 24 l expansion vessel is installed in the heat
pump Golf-Midi indoor unit. In buffer systems or
systems with higher capacity, this expansion
vessel should be checked. If required, install an
additional expansion vessel in the system
(externally, not inside the appliance).
Figure 20: Draining and filling detailed view
Before filling the system, check the pre-charge
pressure in the expansion vessel. This must be
matched to the building height.
- Static head: Difference between highest and
lowest points in the system.
-
Pre-charge pressure = static head + 0.3 bar
- System charge pressure = pre-charge pressure
+0.5 bar (when cold)
-
Max. permissible operating pressure: 2.6 bar.
Select a safety valve with 3.0 bar.
See EN ISO 4126-1:2013-10-15, part 1: Safety
valves.
- Flush the heating system thoroughly before
filling.
- Only fill with water of potable quality.
CAUTION!
Replace plastic closures with
suitable plugs.
Air vent valve
Drain and fill opening
Expansion vessel