Fig. 2 Water connections
The following must be taken into account when connecting the duct cooler to the pipe system.
1. The pipes connected to the cooler must not be subjected to twisting or bending loads. Use tools to
restrain the pipes when tightening the coupling nuts.
2. Ensure that expansion forces in the system or the deadweight of the pipe system are not applied to
the connections on the cooler.
3. The water inlet must be connected to the lower pipe (pos 1) and the outlet to the upper pipe (pos
2) in figure 2. The inlet is provided with a drain connection (pos A) and the outlet with an air purging
connection (pos B).
4. After the system has been filled with water, check the duct cooler and its connections to ensure that
there is no water leakage. Any leakage could cause water damage.
5. The cooling coil can be drained of water through the drain connection (pos A).
Warning
If the water in the coil should freeze, the coil may burst which would allow water to run out of the system,
and this could cause water damage. When the duct cooler is not in service and there is risk of freezing,
the cooler should be drained of water through the drain connection and blown with compressed air to
ensure that all water has been drained.
PGK
Installation and Service
172391
3
Systemair AB
