AW 12s-62s, 12a-62a
13
Photo 13
Photo 14
B
A
Photo 15
Photo 16
3. Mount the fan heater with fitted ceiling brackets on the ceiling acc. to photos 13 and 14.
4. The minimum spacing between the rear of the heater and the wall (arrow photo 13) for the AW 12 and
the AW 22 is 200 mm. For the AW 42 and the AW 62 the minimum spacing is 270 mm.
5. Minimum spacing between heater side and wall (arrow photo 14) is 700 mm.
Water connections for the AW-s and the AW-a
ATTENTION!
Carefully inspect the whole system for leaks after connecting the water pipes.
A leak may cause damage that is expensive to repair.
1. The fan heater must not be connected to hot mains water or steam. The highest temperature and pressure allowed
is indicated on the identification plate attached next to the pipes.
2. The capacity, water temperature, flow and pressure drop are given in the tables for each heater size, see app. D.
3. The fan heater must be connected so that the coil may be drained in the event of shutdown. This is due to risk of
damage in the event of temperatures below zero.
4. An air purge valve must be installed on the heater outlet pipe or centrally in the system.
5. When tightening compression couplings on pipes and valves these must be held in such way that the tightening
torque is not transferred to the inlet and outlet pipes.
6. The pipe system connected to the heater must be suspended in such a way that it does not put any load on the
inlet and outlet pipes.
7. The water inlet is connected to the heater’s lower pipe and the outlet is connected to the heater’s upper pipe,
as shown by the arrows in photo 15. Connections for the AW 12 - AW 22 are 22 mm dia. and for AW 42 -
AW 62 28 mm dia. Press fittings on compression couplings are recommended.
If you are using soldered connections, the pipe must be cooled near the soldering point (using wet rags, freezer
bags or compressed air) so that the casing grommet (arrow A, photo 16) is not heated above 100 °C.
In order to reduce the amount of heat needed, you may remove the support sleeve before soldering.
8. Support sleeves must be used together with press fittings and compression couplings because the copper tubing
is soft-annealed. Check that the support sleeve is fully inserted, as shown by arrow B, photo 16.
Fit the coupling in accordance with the manufacturer’s instructions.
Содержание AW 12a
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