11
Low Noise Mode
To activate low noise mode an optional 3 wire adaptor is required (PAC-SC36NA). This can either be wired into
a manual switch or a timed version. The level of low noise mode which will be activated (as shown in the relevant
graphs below and over the page) is determined by the combination of DIP switch settings (SW5-1 and SW5-2)
on the outdoor unit as shown below. As low noise mode reduces maximum capacity it is important that the
capacity at the low noise mode selected is sufficient to overcome the building’s calculated heat losses.
PUHZ-W50VHA BS Noise Curve
SW5
1 Max. fan step STEP 9 STEP 9
OFF
Selection of max. fan step
Always
selection
at the silent mode
2 Max. frequency Middle Level Low Level
OFF
Selection of compressor
Always
selection
frequency at the silent mode
3 No Function Do NOT use PUHZ-W50,85VHA
OFF
-
-
4 No Function Do NOT use PUHZ-W50,85VHA
OFF
-
-
15
Pre-Plumbed Slimline Cylinder Installation Manual
Содержание Ecodan PUHZ-HW140VHA-BS
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