Wiring Terminals; Wiring Diagrams - Siemens RDF30U Technical Instructions

RDF30U Room Temperature Controller with LCD
For Four-Pipe Fan Coil Units
Specifications,
Continued
Environmental Conditions
Agency Approvals
General

Wiring Terminals

Wiring Diagrams

Siemens Industry, Inc.
Operation
Temperature
Humidity
Transport and storage
Temperature
Humidity
UL Listing
Connection terminals
Weight
Housing front color
Figure 4. Wiring Terminals.
Figure 5. Four-Pipe Fan Coil Units.
Document Number 155-335
32°F to 122°F (0°C to 50°C)
<95% rh
-13°F to 158°F (-25°C to 70°C)
<95% rh
UL 873
Solid wires or prepared stranded
wires 2 × 16 AWG or 1 × 14 AWG
0.5 lb (0.23 kg)
White, NCS S 0502-G (RAL 9003)
1, 2 24 Vac negative
3 24 Vac positive
4 Control valve output, 24 Vac
5 Control valve output, 24 Vac
(inverse of output 4)
6 Control output, second stage
heating or cooling (NO contact)
8 Measuring neutral, remote sensor
9 Return air temperature sensor
10 Control output, Fan speed III, 24 Vac
11 Control output, Fan speed II, 24 Vac
12 Control output, Fan speed I, 24 Vac
D1, Status input for potential-free
GND operating mode changeover switch
B1 Return air temperature sensor
(QAH11.1)
M1 Three-speed fan
N1 Room temperature controller
RDF30U
S1 External operating mode
changeover switch
SN 24 Vac, negative
SP 24 Vac, positive
Y1 Zone valve for Heating mode
Y2 Zone valve for Cooling mode
Technical Instructions
September 27, 2007
Page 9