RCC10U Room Temperature Controller
Technical Instructions
for Two-pipe Fan Coil Units
Document Number 155-712
September 27, 2007
Siemens Industry, Inc.
Page 11
Specifications
Power Supply
Operating voltage
120 Vac +10/-15%
Frequency
50/60 Hz
Power consumption
Maximum 10A
Control Outputs (Fan) 11, 10, 9
120 Vac max./5 res./3.5 FLA/7.0 LRA
(Valve) 7
120 Vac max./5 res./3.5 FLA/7.0 LRA
Signal Input 1 for return air sensor
QAH11.1, Class 2
NTC resistor 3K
Ω @ 77°F (25°C)
Signal Input 3 for changeover sensor
QAH11.1, Class 2
NTC resistor 3K
Ω @ 77°F (25°C)
Permissible number of thermostats
Ten
in parallel, Signal Input 3
Status Input D1 and GND
Contact sensing
6 to 15 Vdc/3 to 6 mA
Operating action
Single-pole, Single-throw (SPST)
Permissible cable length with copper
262 feet (80 m)
cable 16 AWG for connection to
Terminals 1, 3, D1, and GND
Operational Data
Setpoint setting range
50°F to 85°F (10°C to 30°C)
Switching differential in Heating mode SDH 2°F or 7°F (1°C or 4°C)
(selectable)
Switching differential in Cooling mode SDC 1°F or 3.5°F (0.5°C or 2°C)
(selectable)
Setpoint (Energy Saving mode ),
61°F (16°C)
heating
Setpoint (Energy Saving mode ),
82°F (28°C)
Cooling
Setpoint (Freeze Protection
)
46°F (8°C)
General Ambient
Conditions
Operation
Temperature
32°F to 122°F (0°C to 50°C)
Humidity
<95% rh
Shipping and storage
Temperature
–13°F to 158°F (–25°C to 70°C)
Humidity
<95% rh
Agency Approvals
UL Listing
UL 873
cUL certification
C22.2 No. 24-93
Conforms to CE requirements
Degree of housing protection
NEMA 1
General
Connection terminals
Solid wires or prepared standard wires
2 × 16 AWG or 1 × 14 AWG
Minimum 20 AWG
Weight
0.55 lb (0.25 kg)
Housing color
Cover
White and gray
Base
Gray
Degree of housing protection
NEMA 1
