Aprilaire 1150 User Manual

Page 21

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Control input wiring

The internal controller offers four input control types, which are field adjustable. The factory default control type for Model 1150
is the Automatic Steam Humidifier Control, on-off configuration as shown in

Figure 16.

The factory default control type for Model 1160 is the Automatic Steam Humidifier Control, modulating configuration as shown in
Figure 17.

IMPORTANT: For Model 1150 on/off control, verify that the shunt on the JP2 jumper is placed over the 2 & 3 position. For Model
1160 modulating control, verify that the shunt on the JP2 jumper is placed over the 1 & 2 position.

To change the input control type on Model 1160 to signal by others, see

Figure 18 for a 0-10 VDC signal, and see Figure 19 for a

4-20 mA signal (input resistance 250 ohms).

IMPORTANT: Note the internal controller slide switch S1 settings in each control input wiring diagram.

90-917

FIGURE 17 – Model 1160: Input Wiring for Automatic Steam Humidifier Control (modulating configuration)

90-916

FIGURE 16 – Model 1150: Input Wiring for Automatic Steam Humidifier Control (on/off configuration)

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This manual is related to the following products:

1160

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