Damper And Mixing - Carrier 39CP Installation, Operation And Maintenance Instructions

7 - CONNECTIONS
■ To ensure sufficient reliability, the recommended water quality values are shown in the table below:
Appearance
pH value
Conductivity
Total hardness
Carbonate hardness
With carbonate hardness stabilisation
Total salt content
Chloride content
Sulphate
Manganese
Aggressive carbonic acid
KMnO consumption
4
WARNING:
Supply the humidifier with water from the network. Do not use demineralised water.
The water must have a conductivity of 125 to 1250 μS/cm and a hardness of 15 to 30°F.
When using softeners or treatment systems for particularly hard water, the final hardness must not be less than 40% of the
initial hardness or below 15°F.

7.10 - Damper and mixing

7.10.1 - Condensate draining connection
■ Refer to your dimensional drawing for the diameters of the connections and their positions.
■ Outlet on front panel:
- Threaded steel gas connector.
■ Fitting the siphon (see § 7.1 "Condensate drainage siphons").
■ To avoid the risk of pinching, dampers accessible from outside must be equipped with a protective screen to prevent direct access
to the blades. DIN EN ISO 12100 safety devices must be fitted.
7.10.2 - Fitting the servomotor
Before fitting the servomotors:
a/ Adjust the servomotor mechanical stops so that its rotation does not exceed that of the damper. Low mechanical
torque can be applied to close the dampers, however it must not exceed the damper's tightening torque.
b/ Make sure the damper blades can rotate freely.
c/ Positions of the damper louvres:
The damper louvres positioned on the heat recovery unit section must be in the open position.
■ For units sold with the servomotor option but without control.
- Direct installation on the damper:
- The servomotor should be affixed to the plate
- Tighten the clamp against the damper shaft,
C
- Position the screw
Recommended water quality
Max. 1,2 mol/m³
Max. 0,7 mol/m³
Max. 3,5 mol/m³
B
,
in the servomotor groove to prevent it from rotating.
Clear, colourless, no sediment
7 to 8,5
30 mS/m max.
Max. 7°d.H.
Max. 4°d.H.
Max. 20°d.H.
Max. 250 g/m³
0 g/m³
0 g/m³
Max. 0,01 g/m³
0 g/m
Max. 20 g/m³
B
C
Max. 12,5°f.H
Max. 7°f.H
Max. 35°f.H
45