Rheem RXIH-AS09A Guía de instalación descargar pdf (Pagina 17)

Humidification System

 15 69-2307—01

Loosen captive cover

screw. Slide cover out from

front.

M24754

WIRIng

CAUTION: Voltage Hazard.

Before wiring to HVAC terminals, disconnect HVAC

equipmentpower.Ensurehumidifierisnotpluggedin.

Low-Voltage Terminals

24V AC power for electronic humidistat.

HUM Low-voltage humidistat (or thermostat) terminals control

humidifier operation.

C, R Connects to HVAC system transformer terminals (or relay

transformer fan control R and C) to ensure HVAC power

is present before humidifying. This can be disabled by

changing DIP switch 4 (see page 18).

RT Connects to thermostat R terminal, which is normally

switched to call for fan.

GT, GT connects to thermostat G terminal. GF connects

to fan board G terminal. Thermostat G passes through

the normally-closed (NC) relay contacts to GF, allowing

fan activation. When the humidifier is ready to provide

humidity to the home, it will take control of the fan by

forcing power from RT to GF (if not already activated).

EXT Whena24-vacfanboardisnotusedtocontrolblower

(hydronic or cooling-only applications), this connection

withGFprovidesdry-contactclosureforfancalls.EXT/

GF may be wired to a low-voltage relay control center to

provide line-voltage fan control.

M24895

24V

HUM

EXT

M24893

Route wires through the raised harness tabs and out the notch at

therearofthechassis.Ensurewiresaresecureanddonotinter-

fere with assembly of cover.

Tabs Notch

PlumbIng

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Rheem RXIH-AS09A Guía de instalación Pagina 17