Siemens RDX42.22U, Technical Instructions

Page: 7 / 11

RDX42.22U Room Temperature Controller with LCD Technical Instructions
Document Number 155-747
March 13, 2008
Siemens Industry, Inc. Page 7
Table 3. Control Parameters.
Parameter Meaning Setting Range Factory
Setting
P01 Heating setpoint in Energy Saving
mode (operating mode changeover
switch activated)
OFF, 46°F to 64.5°F (8°C to 18
°
C) (in
increments of 1°F)
61°F (16°C)
P02 Cooling setpoint in Energy Saving
mode (operating mode changeover
switch activated)
OFF, 75°F to 95°F (24°C to 35
°
C) (in
increments of 1°F)
82.5°F
(28°C)
P03 Minimum setpoint in Normal mode 46°F to 68°F (8°C to 20°C) (in
increments of 2°F) 46°F (8°C)
P04 Maximum setpoint in Normal mode 70°F to 95°F (21°C to 35°C) (in
increments of 2°F) 95°F (35°C)
P05 Minimum compressor off-time 1 to 10 minutes (in increments of
1 min) 3 min
P06 Minimum compressor on-time 1 to 10 minutes (in increments of
1 min) 1 min
P07 Auxiliary heater minimum hold time 1 to 10 minutes (in increments of
1 min) 1 min
P08 Fan overrun after auxiliary heater off 30 to 300 seconds (in increments of
10 seconds) 30 s.
P09 Sensor calibration –3 to 3 K (in increments of 0.5 K)
(0.5 K = °F) 0 K
P10 Switching differential in heating mode 0.5 to 4 K (in increments of 0.5 K)
(0.5 K = °F) 2 K
P11 Switching differential in cooling mode 0.5 to 4 K (in increments of 0.5 K)
(0.5 K = °F) 1 K
P12 Setpoint differential between heating
and auxiliary heating W
D
0.5 to 5 K (in increments of 0.5 K)
(0.5 K = °F) 2 K
P13 Value of current room temperature No setting, display only —
P14 Active temperature sensor (display
only, no setting choices) 1: Room temperature sensor active
2: Return temperature sensor active
—