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3.2. Changing from pump to gravity condensate discharge
3.3. Fan only / dehumidifying (modes of operation)
The condensate removed by the dehumidifier can be removed by pump or gravity to a suitable
drain.
Consideration as to the siting of the dehumidifier in relation to the drain is given in section 3.1.
above.
The dehumidifiers are all supplied with the drain system set up for pumped condensate discharge.
This mode of operation is recommended as it allows the dehumidifier to be sited further away from,
and lower than, the drain point.
If gravity discharge of the condensate is required then change over can be achieved as follows:
Remove side panel.
Remove clip and short length of hose between drainpan and condensate pump.
Keep this short length of hose in a safe place in case it is subsequently required.
Fit the longer length of hose supplied with the unit to the spigot on the drainpan using
the clip supplied.
Pass the hose through the lower of the two round holes in the base of the pillar and
run to drain.
Change the discharge mode switch, shown in figure 4., from pump to gravity.
Replace the side panel.
If the drain hose becomes kinked, crushed or the drain point is not below the base of the
dehumidifier then the drain pan will fill and the high level cut out will prevent overflowing of the drain
pan.
If it is required to change the discharge mode from gravity to pump then reverse the above
instructions.
The dehumidifiers are designed to operate in full dehumidifying mode or to operate in fan mode only.
Fan only mode may be chosen if the humidity level in the conditioned space has been lowered to the
required level but it is still desirable to have air movement within the space to minimise stratification
or air stagnation.
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Page 10
QA/IOM/46 Issue 11 - MD Dehumidifier