26
DEHUMIDIFIER INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
INSTALLATION
Drain installation
90-2400
FIGURE 26-1: LEVEL THE UNIT
LEVELING THE RL-3, RL-4, RL-6 AND RL-9 DEHUMIDIFIER
The feet can be adjusted to level the unit, and if
required, to accommodate drain fittings and a secondary
condensate pan. Leveling is required to ensure proper
drainage from the dehumidifier. See Figure 26-1.
3/4" FNPT
Drain
0.38"
minimum
2.00"
maximum
DRAIN INSTALLATION FOR THE MODELS RL-3, RL-4, RL-6 AND
RL-9 DEHUMIDIFIERS
The drain outlet on the Model RL-3, RL-4, RL-6, and RL-9
humidifiers can be hard piped using a 3/4" PVC Slip
x 3/4" MNPT fitting and 3/4" nominal drain tubing or
the provided 3/4" MNPT x 3/4" hose barb fitting. 3/4"
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.
NOTE: PTFE thread seal tape is recommended for the
threaded connection and hand tighten only. If hard pipe
is used, PVC primer and cement is recommended for the
slip fit connection. Remove drain insert before priming and
gluing in the PVC fitting. Replace drain insert after PVC
glue has fully dried.
WARNING
Running the Model RL-4 dehumidifier without the drain insert
can lead to condensate leaks. See Figure 48-1.
CAUTION
Do not damage the Model RL-4 drain insert. The drain insert
is a critical feature of the dehumidifier drain management
system.
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