LG RVL469 User Manual
Heating Controller
for use with a partner unit
527
2
Series B
RVL469
Use
Functions
Heating zone control
•
Multifunctional heating controller for use in residential and non-residential
buildings; suitable for weather-dependent flow temperature control of heating
zones with or without room temperature compensation
•
For exclusive use on the bus together with an RVL47... heatinmg controller as
a partner unit
•
1 programmed plant type: three-position control of the mixing valve in a heating zone
•
Analog or digital setting of the heating curve, analog room temperature readjustment, operating line principle for all other parameters
•
Operating voltage AC 230 V, CE conformity
Types of buildings:
•
– Multi-family houses
– Single-family houses
– Smaller non-residential buildings
Types of plants:
•
– Combined plants consisting of several heating zones and heat generation
Types of heating systems:
•
– Radiator, convector, underfloor and ceiling heating systems, radiating panels
Weather-dependent flow temperature control through control of the mixing valve in a
heating zone in combined plants.
Operating modes
Frost protection is ensured in all operating modes.
The controller can be switched to manual operation.
Siemens Building Technologies CE1N2527E / 04.03.1999
Landis & Staefa Division 1/8
Automatic mode
Automatic changeover from normal to reduced temperature, and vice versa,
according to the seven-day program, automatic changeover to holiday mode,
demand-dependent control of heating system (ECO function)
Setback mode
Continuous heating to the reduced temperature, with ECO function
Comfort mode
Continuous heating to the normal temperature, no ECO function
Standby
Other functions
– Optimization functions
– Protective functions
– Remote control
– Commissioning aids
– Communication functions
Ordering
Equipment
combinations
Partner unit
Suitable sensors and
room units
When ordering, please give type reference
RVL469
. Partner unit, sensors, actuator and
valve and, if required, room unit must be ordered as separate items.
Suitable partner units are:
– RVL470 (data sheet CE1N2522E)
– RVL471 (data sheet CE1N2524E)
– RVL472 (data sheet CE1N2526E)
– RVL47 (data sheet CE1N2523E)
Flow and return temperature: all sensors with LG-Ni 1000 Ω at 0 °C, for example:
•
– Clamp-on temperature sensor QAD22
– Immersion temperature sensors QAE22... and QAP21.3
Room temperature:
•
– Room unit QAW50
– Room unit QAW70
– Room temperature sensor QAA24
Outside temperature:
•
– Outside sensor QAC22 (Ni sensing element)
– Outside sensor QAC32 (NTC sensing element)
Suitable actuators
Communication
Technical design
Working principle
Plant type
All electric and electrohydraulic actuators for three-position control made by Landis & Staefa can be used.
For the different types of actuators, refer to data sheets 4500…4599.
The controller is capable of communicating with:
– All units with LPB capability made by Landis & Staefa
– SYNERGYR OZW30 central unit (from software version 3.0)
Connection to an RVL47... partner unit is mandatory. The partner unit is defined by assigning an address. Each partner unit can be operated with only one RVL469.
The RVL469 ha one plant type preprogrammed: room heating with mixing zone, threeposition control acting on mixing valve.
BUS (LPB)
B9
A6/B5
2527S01
E1
B7
A6 Room unit QAW50 or QAW70 E1 Load (space)
B1 Flow sensor LPB Data bus
B5 Room sensor M1 Heating circuit pump
B7 Return sensor N1 Controller RVL469
B9 Outside sensor Y1 Mixing valve heating circuit
CE1N2527E / 04.03.1999 Siemens Building Technologies
2/8 Landis & Staefa Division
Enduser settings
With weather-dependent control, the flow temperature is controlled in function of the prevailing outside temperature via the heating curve. Its basic setting is made with the little
bar on the front of the unit or on an operating line. The room temperature can be readjusted with the knob.
In addition, following can be entered by the enduser:
– Room temperature setpoints for normal heating, reduced heating and frost protec-
tion/holidays
– Seven-day switching program and a maximum of eight holiday periods per year
– Operating mode
– Time of day and date
Temperature acquisition
Space heating
– Flow temperature: with one or two (averaging) sensors
– Outside temperature: with Ni or NTC sensor; the RVL469 identifies the type of sensor
used; with interlinked controllers, it is also possible to define the source of the outside
temperature
– Room temperature: with a room temperature sensor or a room unit, or both (averaging)
The room temperature is included in the control. It can be acquired with a sensor or
•
simulated by a room model with an adjustable building time constant. When using a
sensor, the effect on the control can be adjusted.
It is also possible to limit the maximum room temperature.
The heating is switched on and off depending on demand (ECO function). It is swit-
•
ched off when the amount of heat stored by the building mass is sufficient to maintain
the required room temperature. In that case, the controller takes into account the development of the room temperature and the building's heat storage capacity. It is possible to set two heating limits, one for normal heating and one for reduced heating.
The control is optimized. Switching on, heating up and shutting down are controlled
•
such that, during occupancy times, the required room temperature is always maintained.
At the end of each occupancy period, the heating will be shut down (circulating pump)
until the room temperature setpoint for the non-occupancy time is reached (quick setback, can be disabled). During heating up, the room temperature setpoint can be
boosted (boost heating). It is possible to set maximum limits for the heating up time
and for early shutdown.
Three-position control
Minimum limitation of
return temperature
Locking functions
Time switch
Remote control
Three-position control operates as weather-dependent or load-dependent flow temperature control. P-band and integral action time are adjustable. The flow temperature is
controlled via the regulating unit (control or slipper valve).
Minimum and maximum limitation of the flow temperature as well as maximum limitation
of the rate of setpoint rise are adjustable.
Minimum limitation of the return temperature acts with both three-position control and loaddependent control of the boiler temperature and helps prevent flue gas condensation.
On the software side, all settings can be locked to prevent unauthorized readjustments.
– The RVL469 has one seven-day time switch for entering the daily occupancy times.
Each day can accommodate three occupancy times, whereby each weekday may
have different occupancy times
– For entering a maximum of eight holiday periods, the RVL469 is equipped with a
yearly time switch featuring automatic summer- / wintertime changeover
– Changeover of operating mode with the QAW50 room unit
– Overriding the major controller functions with the QAW70 room unit
– Selection of another (programmable) operating mode with an external contact
– Preselection of a fixed flow temperature setpoint with an external contact. Type of
setpoint (fixed or minimum) and flow temperature can be selected
Siemens Building Technologies CE1N2527E / 04.03.1999
Landis & Staefa Division 3/8
Loading...