Installation Manual

NOTE: Once the Infinity System 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 System Control operate humidifier.

4.6.1. Bypass H umidifier

A bypass humidifier should be wired directly to the furnace or fan coil HUM and

24VAC COM terminals. The Infinity System Control 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 System Control to

automatically energize the HUM output during a call for humidification. The N.O.

relay contacts will be used to energize the humidifier. See fan powered humidifier

installation instructions for more details.

5. Commissioning

This section addresses initial power up (or commissioning) of a new Infinity

System Control. The control will communicate and identify all components in the

Infinity System. The following is a typical example for a communicating

variable--speed furnace / fan coil with a 2--stage air--conditioner / heat pump