Connecting the water pipes
CAUTION!
Hot surface!
Danger of burn or scald injuries when working on
the hot water system.
Before working on the water-side connections,
shut down the system, depressurise it and let it
cool down.
The heat exchanger is fitted with water flow and
water return connections:
Fig. 8: DID614 with 4-pipe system
2-pipe system: 2 water connections
4-pipe system: 4 water connections
Make sure that the water temperature does not fall
below the dew point.
Water connection
Spanner
Type of connection
Copper tubes
12
×
1 mm
–
Soldered (rigid)
Flexible hoses
(accessory)
G 1/2" external
thread and flat seal
SW22
Screw connection
(rigid)
Flexible hoses
(accessory)
G 1/2" union nut and
flat seal
SW24
Screw connection
(rigid)
Flexible hoses
(accessory)
Connecting the unit – screw connection
Personnel:
Specialist personnel
Protective equipment:
Industrial safety helmet
Safety shoes
Protective gloves
Ensure that the surfaces are clean
1.
Insert seal and tighten screw connection by
hand.
NOTICE!
Incorrect assembly will damage the heat
exchanger!
Always use a suitable tool to counter the tight-
ening force in order to prevent any damage.
2.
Tighten screw connections with a spanner.
NOTICE!
Subzero temperatures will damage the heat
exchanger!
Only fill the heat exchanger if there is no danger
of freezing.
3.
Fill the heat exchanger and vent it. To fill the
system, use clean tap water (pH value 6.5 to
9) or a water glycol mixture (max. 30%
glycol).
Connecting the water pipes
Active chilled beams Type DID614
9
