Equipment Combinations; Mechanical Design - Siemens RDF30U Technical Instructions

Technical Instructions
Document Number 155-335
September 27, 2007
Ordering
Equipment
Combinations

Mechanical Design

Setting and Operating
Elements
Page 6
The QAH11.1 temperature sensor can be used as a return air temperature sensor. The
changeover sensor and the valves must be ordered separately.
Product Number
QAH11.1
599 Series
SF Series
The controller consists of two parts:
▪
Plastic housing which accommodates the electronics, the operating elements and
the built-in room temperature sensor
▪
Base
The housing engages in the base and is secured with two screws. The base carries the
screw terminals. The DIP switches are located at the rear of the housing.
1
Display of the room temperature, setpoints or control parameters
2
Symbol used when displaying the current room temperature
3
Normal mode
Economy mode
4
Cooling valve open
Fan on
Heating valve open
5
Buttons for adjusting the setpoints and the control parameters
6
Operating mode selector
(Standby " ", Heating or Cooling mode with manual selection of fan speed)
RDF30U Room Temperature Controller with LCD
Table 2.
Description
Temperature Sensor
Two-way and Three-way
Zone Valves
Zone Valve Actuator
Figure 2. RDF30U Components.
for Four-Pipe Fan Coil Units
Technical Instructions
155-329P25
155-320P25
155-321P25
Siemens Industry, Inc.