Humidifier Connections; Bypass Humidifier; Fan Powered Humidifiers - Carrier Infinity SYSTXCCITW01 Installation Instructions Manual

NOTE: Once the Infinity Touch Control is secured to wall with the backplate
assembly (snapped together), care must be taken not to bend or break the
interlocking tabs when removing.
4.6.

Humidifier Connections

A 24VAC bypass or fan powered humidifier may be installed.
NOTE: Do NOT use a traditional humidistat to control humidifier operation. If a
humidifier is installed, let the Infinity Touch Control operate humidifier.
4.6.1.

Bypass Humidifier

A bypass humidifier should be wired directly to the furnace or fan coil HUM and
24VAC COM terminals. The Infinity Control Touch will automatically energize the
HUM output during a call for humidification.
4.6.2.

Fan Powered Humidifiers

Most fan powered humidifiers produce internal 24VAC in order to energize upon a
switch or contact closure. For this application, a 24VAC N.O. Isolation Relay
(DPST) MUST be used to prevent mixing the internal humidifier power with the
indoor equipment transformer. Applying 24VAC isolation relay coil to furnace or
fan coil HUM and COM terminals will allow the Infinity Touch Control to
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