SD Carel USA
9
4. Connect Power Wiring
Before connecting any power supply, check the data label inside the electrical compartment
door to make sure the unit configuration matches the power supply. If it does not match, do
NOT connect power – call your Carel representative.
Insert the high power wires through the strain reliefs provided on the BOTTOM of the
humidifier and wire directly to the field wiring terminals as shown below without loops. DO
NOT bring high power wires into the humidifier from any other point. High power wires near
the low voltage controls can damage them and VOID WARRANTY. An external, fused
disconnect should be provided by the installer.
Each SD humidifier is internally wired for the maximum amperage that it can see on any voltage. Electrical wiring
sizes must match all national and local electrical codes. Generally, the following maximum wire sizes can be
connected to SD humidifiers:
SD MODELS 101 102 103 106 303 305 308 313 323 333 342 360 384 3B3
Max. Wire Size – Ga.
14 14 12 10 14 12 10 8 4 6 2 1 1/0 4/0
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