Technical Instructions
RCC10U Room Temperature Controller
Document Number 155-712
for Two-pipe Fan Coil Units
September 27, 2007
Page 12
Siemens Industry, Inc.
Wiring Terminals
1
Status input, Return air temperature sensor
2
Measuring neutral, Return air temperature sensor and changeover sensor
3
Status input, Changeover sensor
4, 5
Neutral
6
Operating voltage 120 Vac
7
Control output, Valve, 120 Vac
9
Control output, Fan speed III, 120 Vac (High)
10
Control output, Fan speed II, 120 Vac (Medium)
11
Control output, Fan speed I, 120 Vac (Low)
D1, GND Status input for potential-free operating mode changeover switch
(operating action can be selected)
Figure 11. Wiring Terminals.
Wiring Diagram
B1
Return air temperature sensor (QAH11.1)
B2
Changeover sensor (QAH11.1)
G
Operating voltage 120 Vac
M1
Three-speed fan
G0
Neutral
N1
RCC10U Room Temperature Controller
S1
External operating mode changeover switch
Y1
599 Series Zone Valve
Figure 12. Wiring Diagram.
