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RLU222 Siemens
Original price
$1,189.10
-
Original price
$1,237.50
Original price
$1,237.50
$1,189.10
-
$1,237.50
Current price
$1,237.50
Trusted By
Product Details
Specifications provided for reference. Verify critical details against official manufacturer documentation before installation.
Product Overview
The RLU222 is part of Siemens' Synco 200 family of universal air-conditioning controllers. It provides two independent control loops with combined analog and relay outputs to manage mixed-air, heating/cooling coil, or humidifying applications. The controller integrates measurement input, PID regulation, and switching outputs to interface with valves, dampers, or pumps. RLU222 is typically deployed in HVAC systems for supply-air temperature regulation, humidity control, or differential pressure control within building automation systems.
Best Suited For
- Mixed-air temperature control in HVAC units
- Supply-air temperature regulation with heating and cooling coils
- Humidity control with direct-expansion cooler applications
- Differential pressure control with speed-controlled pumps or fans
Control Loops
2
Output Types
Analog + Relay
Power Consumption
5 VA
Power Supply
AC 24 V ±20 %
Technical Specifications
I/O & Electrical
Power supply (rated voltage)
AC 24 V ±20 %
Power consumption
5 VA
Universal inputs (passive)
0…1000 Ω / 1000…1175 Ω
Universal inputs (active)
DC 0…10 V
Sensor input types
LG-Ni 1000, T1, Pt 1000; 2× LG-Ni 1000 (averaging)
Digital input voltage/current
DC 15 V / 5 mA
Positioning output
DC 0…10 V, ±1 mA
Relay outputs
AC 230 V switching, max 4 A resistive, 3 A inductive
