Honeywell HCM-631N - Quietcare 3 Gallon Owner's Manual page 45

OPTION 13: Prestige IAQ controlling 2 TrueSTEAM humidifiers
THM5421R1005
IAQ
DEVICE
SENSOR TYPE
THM5421R1005
1
ON
OFF
AFS MONITOR RECOMMENDED
1 THE YTH9421R5002 KIT INCLUDES THE THX9421R5005 PRESTIGE IAQ THERMOSTAT AND
THE THM5421R1005 EQUIPMENT INTERFACE MODULE. THE YTHX9421R5010 KIT INCLUDES
THE THX9421R5005 PRESTIGE IAQ THERMOSTAT, AND THE THM5421R1005 EQUIPMENT
INTERFACE MODULE, REM5000R1001 PORTABLE COMFORT CONTROL, AND C7089R1013
WIRELESS OUTDOOR SENSOR.
A DOUBLE-POLE RELAY SUCH AS THE R8228D1018 IS REQUIRED.
2
AN AIR-FLOW SWITCH IS RECOMMENDED. IF AN AIR FLOW SWITCH IS NOT USED THERE
3
DOES NOT NEED TO BE A WIRE ATTACHED TO C ON THE TrueSTEAM AND THE #4 DIP
SWITCH NEEDS TO BE SET TO "ON".
4 GT IS NOT REQUIRED FOR THIS APPLICATION. SINCE THE PRESTIGE IAQ THERMOSTAT
DOES NOT HAVE A Y/G INTERCONNECT, PARALLEL WIRING CAN BE DONE (AS SHOWN).
HM506, HM509, OR HM512 TrueSTEAM HUMIDIFIERS CAN BE USED.
5
THE U1, U2, OR U3 CONTACTS CAN BE CONFIGURED TO CONTROL A HUMIDIFIER. IN THIS
6
DIAGRAM THE 1 TERMINALS ARE USED.
CONFIGURE THE THERMOSTAT TO HUMIDIFY INDEPENDENT OF FAN (INSTALLER SETUP
7
374 SET TO 3).
TrueSTEAM Humidification System 69-2285—01
6
1
2 3 4 5
6
THX9421R5005
1
6 7
FURNACE
2
4
4
5
TrueSTEAM 1 TrueSTEAM 2
AFS
3
M33058
43