Product Overview

Sample configurations
The HL-69158NP provides proportional override control
when linked with a system controller or another
HL-69158NP. See Figure 5 and Figure 6.
Note: When you use the HL-69158NP device as a
proportional override device, you can configure
the HL-69158NP for the following Johnson Controls
controllers:
• Air Handling Unit (AHU)
• Unitary (UNT) Controller
• Variable Air Volume (VAV) Controller
• VAV Modular Assembly (VMA)
• Digital Control Module (DCM) with a Function Module-
Output Analog Electrical (FM-OAE)
• DX-9xxx or AS-LCPx00-0
• System 350
™
control such as a W351P Humidity Control
Figure 5: HL-69158NP linked with a System Controller
Callout Description
A HL-69158NP device
B
HL-69158NP device, mounted at least
8 ft (2.4 m) downstream from the
humidification equipment
C System Controller
D Humidifier
Figure 6: HL-69158NP linked with another HL-69158NP
device
Callout Description
A HL-69158NP device
B
HL-69158NP device, mounted at least
8 ft (2.4 m) downstream from the
humidification equipment
C Humidifier
Stand-alone proportional device
When stand-alone proportional duct humidity control
is required, the HL-69158NP input jumper is set to no
input. When duct humidity approaches the user-defined
setpoint, the HL-69158NP proportionately reduces its
output to the humidification equipment. See Figure 7 . A
sample configuration is shown in Figure 8.
Figure 7: Stand-alone proportional control operation
Callout Description
A Proportional band (PB)
B Setpoint (SP)
C SP - PB
HL-69158NP Multi-Function Humidity Device with Temperature Sensor Product Bulletin 3