Aprilaire 1952 Specifications download pdf (Page 4)

FLOAT

Switch

DH DH

NORMALLY CLOSED

FLOAT SWITCH

DRAIN INSTALLATION

LEVELING

CONDENSATE PAN, CONDENSATE PUMP AND FLOAT SWITCH

Alevelsurfaceisrequiredtoensureproperdrainagefromthedehumidifier.

The drain outlet on the dehumidifier can be hard piped using 3/4” nominal drain tubing or the provided fittings and 1/2” clear PVC tubing can be

used to drain the dehumidifier. Always maintain a constant downward slope from the dehumidifier to the drain and do not allow soft tubing to

curl up which may result in air lock.

Always install the dehumidifier in a condensate pan when locating

in or above a finished space. Adhere to local codes regarding

drainingofthecondensatepan.Ifacondensatepumpisneeded,

install it in the condensate pan as well.

Installacondensateoverflowsafetyswitch(i.e.floatswitch)inthe

condensate pan, remove the factory installed jumper wire between

the Float Switch terminals on the control and wire the float switch

to the dehumidifier as shown in Figure 4.Overflowsafetyswitches

on condensate pumps can be wired to the Float Switch terminals in

a similar fashion.

FIGURE 4 – Float Switch Wiring

90-1857

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Aprilaire 1952 Specifications Page 4