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Document No. 129-491
Installation Instructions
October 6, 2009
Parameter
P01
Heating setpoint in Energy Saving
mode (operating mode changeover
switch activated)
P02
Cooling setpoint in Energy Saving
mode (operating mode changeover
switch activated)
P03
Minimum setpoint in Normal mode
P04
Maximum setpoint in Normal mode
P05
Minimum compressor off-time
P06
Minimum compressor on-time
P07
Auxiliary heater minimum hold time
P08
Fan overrun after auxiliary heater off
P09
Sensor calibration
P10
Switching differential in heating mode
P11
Switching differential in cooling mode
P12
Setpoint differential between heating
and auxiliary heating W
P13
Value of current room temperature
P14
Active temperature sensor (display
only, no setting choices)
Page 6 of 7
Table 4. RDX42.22U Control Parameters.
Meaning
D
Setting Range
OFF, 46°F to 64.5°F (8°C to 18°C) (in
increments of 1°F)
OFF, 75°F to 95°F (24°C to 35°C) (in
increments of 1°F)
46°F to 68°F (8°C to 20°C) (in
increments of 2°F)
70°F to 95°F (21°C to 35°C) (in
increments of 2°F)
1 to 10 minutes (in increments of
1 min)
1 to 10 minutes (in increments of
1 min)
1 to 10 minutes (in increments of
1 min)
30 to 300 seconds (in increments of
10 seconds)
–3 to 3 K (in increments of 0.5 K)
(0.5 K = °F)
0.5 to 4 K (in increments of 0.5 K)
(0.5 K = °F)
0.5 to 4 K (in increments of 0.5 K)
(0.5 K = °F)
0.5 to 5 K (in increments of 0.5 K)
(0.5 K = °F)
No setting, display only
1: Room temperature sensor active
2: Return temperature sensor active
Factory
Setting
61°F (16°C)
82.5°F
(28°C)
46°F (8°C)
95°F (35°C)
3 min
1 min
1 min
30 s.
0 K
2 K
1 K
2 K
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Siemens Industry, Inc.
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