Instruction manual
WWH Heater
Pag. 4
2.2. User’s restrictions
Work pressure:
Max. 5 bar
Water temperature:
Max. 100
⁰
C
Min. 4
⁰
C (freezing danger!)
Environment temperature:
Max. 40
⁰
C
Min. 4
⁰
C (freezing danger!)
Protection grade:
IP54
Note: Frost can cause the internal copper tubes in the exchanger to burst, the exchanger will leak. No
warranty on this.
2.3. Pre-check
Before installing the heater, please check if the heater is in accordance with the order, and whether it
suites the local and present provisions (electrical supply etc.). The heater also has to meet local and
national legislations.
After installation ensure that the appliance is no hazard for persons or can cause damage in terms of
moisture, dust, inflammable or corrosive gases, smoke and/or combustible materials
.
The competent installer must make sure that the heater functions correctly and must instruct the user
about safe operation of the heater.
3. Installation
3.1 Suspension
The WWH is provided with 8 M10 suspension points on the side panels.
Use preferably the specially designed cantilever brackets or the ceiling mounting-set.
Take care that the heater is placed stable and that there is no tension on the water sided connections.
Wall setup:
The pipe connections for water should always be
horizontal
, with a view to venting of the
internal pipes. The heater can be turned over slightly, but the heater may absolutely not hang askew.
Place the heater in such manner that, the return connection (cold water) is at the lowest point. It’s
important to place the venting in the duct near the heater.
Ceiling setup:
Again the pipe connections to the heater should be horizontal, to enable venting of the
internal tubes. To avoid draught place the heater high enough (minimum 2,5m). If necessary use our
outlet cone or the 4-way down flow plenum. Application of a plenum will decrease the throw with
factor 4.
Fig. 3
