GMS8 Humidifier Wire Installation Instructions
24 VOLT HUMIDIFIER WIRE (P/N W18207050220007)
TAPE BROWN WIRE HERE
ATTENTION INSTALLING PERSONNEL
Goodman Company, L.P.
1810 Wilson Parkway • Fayetteville, Tennessee 37334
www.amana-hac.com
Part No. IO-669
Printed in USA
©2006 Goodman Company, L.P.
August 2006
INSTALLATION INSTRUCTIONS
24 V
OLT
H
UMIDIFIER
W
IRE
WARNING
HIGH
VOLTAGE
D
ISCONNECT ALL POWER BEFORE SERVICING OR
INSTALLING THIS UNIT.
MULTIPLE POWER SOURCES MAY
BE PRESENT.
FAILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE, PERSONAL INJURY OR DEATH.
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
As s a professional installer, you have an obligation to know the product better than the customer.
This includes all safety precautions and related items.
Prior to actual installation, thoroughly familiarize yourself with this Instruction Manual. Pay special attention to all safety warnings.
Remember, it is your responsibility to install the product safely and to know it well enough
to be able to instruct a customer in its safe use.
Safety is a matter of common sense...a matter of thinking before acting.
Most dealers have a list of specific, good safety practices...follow them.
The precautions listed in this Installation Manual are intended as supplemental to existing practices. However, if there is a direct conflict
between existing practices and the content of this manual, the precautions listed here take precedence.
The yellow wire connected to the I.D. Blower pressure switch is powered whenever the pressure switch is
closed and provides 24 VAC humidifier control. Remove the yellow wire and connect the supplied brown
jumper wire to the pressure switch terminal. Reconnect the yellow wire to the “piggyback” terminal on the
brown jumper and then connect the 24 VAC line of the humidifier to the stripped end of the brown wire. This
connection can be made by using a wire nut or by using a field-supplied quick connect terminal. The
wiring must conform to all local and national codes. Connect the COM side of the humidifier to the B/C
terminal on the furnace control board (or to the COM side of the 24 VAC transformer). Do not connect
115V humidifier to these terminals.