Siemens RDY2000BN Installation Instructions Manual page 15

CAUTION:
P900 Series parameters are used by professional HVAC technicians during the system commissioning
process. Interlocks and time delays are defeated while using P900 parameters. Use of these parameters by
non-qualified personnel may result in equipment damage.
Parameter Definition
P901 Test Compressor 1
P902 Test Compressor 2
P903 Test Reversing Valve
P904 Test Fan
P905 Test Heat Stg 1
P906 Test Heat Stg 2
P907 Test Output 1
P908 Test Output 2
P909 Test Output 3
P911 Expert Password
Restore Factory
P999
Defaults
Auxiliary Sequences
The RDY2000BN primary sequences are designed to
control single and multi-stage heating/cooling systems to
maintain a user-selected temperature setpoint.
The following auxiliary sequences are available to
optimize occupant comfort and system efficiency:
Humidification
Parameters
•
P317/ P318/P319: One of these must be set to 1
•
P320: NO (default) = Humidification will only
occur if there is a call for heating. YES =
Humidification relay will be energized
independently of heating and cooling relays.
Siemens Industry, Inc.
Table 10. 900 Series Expert Settings Parameters.
(Only available if logged in as an Expert.)
Display Value Range
1=OFF
Y1 Test
0=ON
1=OFF
Y2 Test
0=ON
1=OFF
O/B TEST
0=ON
1=OFF
G Test
0=ON
1=OFF
W1 Test
0=ON
1=OFF
W2 Test
0=ON
1=OFF
OUT1 TST
0=ON
1=OFF
OUT2 TST
0=ON
1=OFF
OUT3 TST
0=ON
XPRT PW 5000 -- 9999
0=No
RESTORE
1=Yes
Default
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Current PW
No
•
Humidity Setpoint: User adjustable to desired
level in humidification mode.
Sensors: Onboard humidity sensor or optional remote
humidity sensor.
The humidification relay will energize when measured
humidity drops approximately 4% below setpoint and will
de-energize when measured humidity reaches setpoint.
Deadbands and proof timers are in force to prevent short
cycling.
Document No. 125-1009
Installation Instructions
February 10, 2020
Extended Definition
OFF = Relay not energized
ON = Relay energized
OFF = Relay not energized
ON = Relay energized
OFF = Relay not energized
ON = Relay energized
OFF = Relay not energized
ON = Relay energized
OFF = Relay not energized
ON = Relay energized
OFF = Relay not energized
ON = Relay energized
OFF = Relay not energized
ON = Relay energized
OFF = Relay not energized
ON = Relay energized
OFF = Relay not energized
ON = Relay energized
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