Atag E 22C, Инструкции по установке и обслуживанию

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Installation & Servicing Instructions ATAG E-Series
9
6 Connecting the boiler
The boiler has the following connection pipes;
-
The central heating pipes.
These can be connected to the installation by means of compression fittings /
adapter fittings;
- The gas pipe.
It is provided with a female thread into which the tail piece of the gas valve can be
screwed;
- The condensation drain pipe.
It consists of a 22mm plastic pipe. The drain pipe can be connected to this by means
of an open connection. If the open connection is fitted in a different location, then the
pipe can be lengthened by means of a 32 mm PVC sleeve;
- The flue gas exhaust system and air supply system.
It consists of a concentric connection 60/100 mm.
- Cold and hot water pipes.
Only Combi boilers: These consist of 15 mm copper pipe and can be connected
to the installation by means of compression fittings / adapter fittings.
It is recommended that isolation valves are fitted to all heating and hot water
connections to facilitate ease of future maintenance.
It is advisable to spray-clean all of the boiler’s connecting pipes and/or to
spray-clean/blow-clean the installation before connecting it to the boiler.
6.1 Central heating system
Connect the central heating system according to the actual regulations.
The boiler pipes can be connected to the installation by means of compression fittings.
Reducers should be used for connecting to thick-walled pipe (welded or threaded).
When removing the plastic sealing caps from the pipes, contaminated testing
water may be released.
The boiler has a self-adjusting and self-protecting control system for the load. By this means
the temperature difference between the flow and return water is checked. Table 3 shows the
water displacement which supplies the circulation pump at certain installation resistance.
If the installation resistance is higher than the stated value the load will be adjusted until
an acceptable temperature difference between flow and return water has been obtained.
If, after this, the temperature difference remains too much then the boiler will switch itself
off and wait until an acceptable temperature has been reached.
type of unit
Pump
type
water flow rate
'
''
'
T 20°C
permissible
installation
resistance
l/min l/h kPa mbar
E22S UPS 20-50 14,3 856 28 280
E32S UP 20-60 20.7 1244 17 170
E22C UPS 20-50 14,3 856 27 270
E32C UP 20-60 20.7 1243 15 150
Installation resistance table 3