Replacement controls, switches, and thermostats replace nonfunctioning parts in HVAC/R equipment that help regulate temperatures and send signals to control components for efficient operation.
Replacement controls, switches, and thermostats replace nonfunctioning parts in HVAC/R equipment that help regulate temperatures and send signals to control components for efficient operation.
The 2372-501 Volume Booster Relay is a proportioning device designed for use in pneumatic control systems where the application requires amplifying the volume of control air to final control devices. System transmission lag is minimized by using this relay in conjunction with a proportional controller operating several diaphragm valves or damper actuators.
This device may also be used as a low pressure selector when the application requires the comparison, selection, and transmission of the lower of two proportional input signals.
A bias adjustment is provided which allows the branch output to be advanced or retarded up to 5 psig from the true signal.
The 2372-502 High Selector Relay is a device designed for use in pneumatic control systems where the application requires the comparison, selection, and transmission of the higher of two proportional input signals.
These devices are to be used on clean, dry, oil free control air only and will operate properly when mounted in any position.
The inherent reliability of these devices is enhanced and prolonged through regular inspection and preventive maintenance be a qualified control expert. Should any device become inoperative, it should be replaced by a new unit.
| Action | Proportional |
| Adjustments | None |
| Main Air Pressure | 25 PSIG maximum |
| Maximum Ambient Temperature | 140°F (60.0°C) |
| Mounting | Designed for use on 22-120 Schneider Electric Pneumodular manifold socket. These devices can also be surface mounted by using the appropriate mounting bracket |
| Connections | Barbed nipples for 1/4" (0.64 cm) outer diameter polyethylene or 5/32" (0.40 cm) inner diameter polyurethane tubing |
| Material | Glass-filled nylon |
| Action | Proportional |
| Adjustments | None |
| Main Air Pressure | 25 PSIG maximum |
| Maximum Ambient Temperature | 140°F (60.0°C) |
| Mounting | Designed for use on 22-120 Schneider Electric Pneumodular manifold socket. These devices can also be surface mounted by using the appropriate mounting bracket |
| Connections | Barbed nipples for 1/4" (0.64 cm) outer diameter polyethylene or 5/32" (0.40 cm) inner diameter polyurethane tubing |
| Material | Glass-filled nylon |
