Rvl469; Features And Function; Technical Design; Type Of Plant - Siemens RVL470 Basic Documentation

18. RVL469

18.1. Features and function

18.2. Technical design

18.2.1. Type of plant

18.2.2. Operation with a partner

CE1P2522E / 30.03.2000
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The RVL469 has been designed as a favourably-priced controller for the control of a
second heating circuit. It must always be used in connection with a partner unit. The
basic design of the RVL469 is very similar to that of the RVL470. The relevant functions
have been adopted.
The RVL469 only offers plant type 1 of the RVL470, namely «Space heating with mixing
valve».
BUS (LPB)
B9
B7
A6 Room unit QAW50 or QAW70
B1 Flow temperature sensor
B5 Room temperature sensor
B7 Return temperature sensor
B9 Outside sensor
Suitable partners
The following L & S controllers can be used as partners:
•
RVL470
•
RVL471
•
RVL472
•
RVL47
Each RVL469 requires one such partner. The plant type selected on the partner is of no
importance to the RVL469.
Addressing the partner
On the bus (LBP), the RVL469 must be located in the same segment as its partner. Its
device number must be one digit lower than that of the partner. If the addressing is not
correct, the RVL469 will not operate, or it will change to the passive mode.
Addressing example with two RVL470 and two RVL469:
Type of device Segment number
A (RVL470)
B (RVL470)
C (RVL469)
D (RVL469)
In this example, controllers A and C and controllers B and D form one pair.
Basic Documentation RVL470
RVL469
E1 Load (room)
LPB Data bus
M1 Heating circuit pump
N1 Controller RVL469
Y1 Heating circuit mixing valve
Device number
1 1
1 3
1 2
1 4
A6/B5
E1
Siemens Building Technologies
Landis & Staefa Division