HVAC Controls, Pneumatic • Thermostats and Humidistats
Pneumatic Humidistat HP970
Model Description
Two-pipe, single setpoint, pneumatic humidistat used to provide proportional control of pneumatic valves on humidification or dehumidification systems.
Features
• Durable HP970 series humidistat. • Pilot operated for high capacity. • Direct Acting (DA) and Reverse Acting (RA) models are available.
• Vertical or horizontal mounting.
• Backplate has molded air connections; no separate fittings needed.
• Variety of cover finishes and display styles available. item action
HP970A1009 Direct Acting HP970B1007 Reverse Acting HP970B1015 Reverse Acting
number of pipes 2 2 2
scale range (% rH) throttling range (% rH) setpoint 15 to 75% RH 15 to 75% RH 65 to 95% RH
3 to 15% RH 3 to 15% RH 3 to 15% RH
Single Single Single
comments
Order Cover Separately Order Cover Separately Order Cover Separately
Pneumatic Humidistat HP972
Model Description
A proportioning pneumatic humidistat used on one- or two- pipe installations for controlling actuators on valves and dampers in air conditioning systems for humidification or dehumidification control.
Features
• Durable HP970 series humidistat. • Snap-on mounting to backplate. • Vertical or horizontal mounting.
• Backplate has molded air connections; no separate fittings needed.
• Variety of cover finishes and display styles available. • Wide throttling range.
item HP972B1005 action Reverse Acting
number of pipes scale range (% rH) throttling range (% rH) 1 or 2