Specifications

90-918
FIGURE 22 – Model 1160/1180: Input Wiring for Optional 0-10 VDC Signal by Others
90-919
FIGURE 23 – Model 1160/1180: Input Wiring for Optional 4-20 mA Signal by Others
IMPORTANT:
LW420 controller board slide switch
S1 positions 1 and 2 are OFF
HIGH HUMIDITY
LIMIT SWITCH
AIRFLOW PROVING
SWITCH
STEAM HUMIDIFIER
FIELD WIRING
TERMINAL BLOCK
SIGNAL BY
OTHERS
0-10 VDC
2-wire shielded cable with ground
2-wire shielded
cable with ground
C
1
30
2
Enable
+24VDC
Command signal
Common
+
-
IMPORTANT:
LW420 controller board slide switch
S1 positions 1 and 2 are ON
HIGH HUMIDITY
LIMIT SWITCH
AIRFLOW PROVING
SWITCH
STEAM HUMIDIFIER
FIELD WIRING
TERMINAL BLOCK
SIGNAL BY OTHERS
4-20 mA (input resistance
250 ohms)
2-wire shielded cable with ground
2-wire shielded
cable with ground
C
1
30
2
Enable
+24VDC
Command signal
Common
+
-
28