International comfort products N9MSE Series Installation Instructions Manual page 34

INSTALLATION INSTRUCTIONS
Figure 39 Isolation Relay for Humidifiers with Internal Power Supply
To Humidifier Leads
To Humidifier Leads
Figure 40 Example of Single Stage Furnace Control for PSC Blower Motor
115−VAC (L2) NEUTRAL
SELECTION TERMINALS
34
J2 JUMPER
OFF−DELAY
24−V THERMOSTAT
TERMINALS
HUM
24VAC
3−AMP FUSE
COM/BLUE 24VAC/RED
LED OPERATION &
Ï Ï Ï
DIAGNOSTIC LIGHT
Ï Ï Ï
CONNECTIONS
Ï Ï Ï
Ï Ï Ï
SPARE1
SPARE2
SPARE1
BLOWER SPEED
SPARE2
SPARE3
Specifications subject to change without notice.
24 V
Coil
HEAT
COMPONENT TEST
TERMINAL
HUMIDIFIER TERMINAL
(24−VAC 0.5 AMP MAX)
TRANSFORMER 24−VAC
CONNECTIONS
P1 − LOW VOLTAGE MAIN
HARNESS CONNECTOR
EAC 1 AMP
1−AMP@115VAC
XFMR
SPARE3
HUM
115 VAC
(L1) LINE
VOLTAGE
HUMIDIFIER
CONNECTION TERMINAL
115−VAC
Gas Furnace: N9MSE
To HUM 24 VAC Terminal
On Furnace Control Board
To C Screw Terminal
on Thermostat Strip
P2
IND
HSI
P2−HOT SURFACE IGNITOR (HSI) & INDUCER
MOTOR (IND) CONNECTOR
440 01 4103 03
A11157
L13F013