Siemens AEROGYR RWI65.02 User manual

Siemens Building Technologies CM2N3204E / 1.1999
Landis & Staefa Division 1/20
3204
AEROGYR™
Controller RWI65.02
for central air handling
with single- or two-speed fans
Compact unit providing control and supervisory functions,
operating voltage AC 24 V, signal voltage DC 0...10 V.
In ventilating and air conditioning plants with
• hot water heating coils or electric air heater batteries
• direct expansion cooler batteries or chilled water cooling coils
• recirculated air dampers or heat recovery (HR) equipment
The RWI65.02 is used to:
• control
- the room-supply air temperature or extract air-supply air temperature (cascade
control) with adjustable minimum and maximum limitations
- the room-supply air temperature or extract air-supply air temperature (cascade
control) with room or extract air-dependent shifting minimum and maximum
limitations (displacement ventilation)
- the supply air temperature
- the CO2/VOC content of the room air (demand controlled ventilation)
- single- or two-speed fans
- air coolers
- chillers
- HR equipment
- hot water heating coils (with preheating)
- electric air heater batteries (with fan overrun)
- circulators in hot or chilled water circuits (load- or outside temperature-dependent)
- air damper actuators (with recirculated startup circuit for modulating dampers)
- regulating units in hot and chilled water circuits
Use

CM2N3204E / 1.1999 Siemens Building Technologies
2/20 Landis & Staefa Division
• supervise
- the air flow in air ducts
- overloads of circulators, fans and chillers
- overtemperatures of electric air heater batteries
- risk of fire or smoke
- risk of frost
Name Type reference Remarks
FLN communication insert AZI65.1 Not included in delivery
Instructions (de, fr, it) ARG65.43 Included, if ordered
Instructions (en, sv, fi, no) ARG65.44 Included, if ordered
Instructions (nl, es, da) ARG65.45 Included, if ordered
When ordering the controller, please give type reference RWI65.02. To ensure the unit
will be supplied with the correct language version of the instructions (operating card 2,
operating instructions and mounting instructions), please also indicate the type refer-
ence of the instructions required, e.g. ARG65.44 (for English, Swedish, Finnish,
Norwegian).
To order the communication insert, please give type reference AZI65.1.
Controller and, if required, communication insert are packed separately and are also
supplied as separate units.
Name Type reference Data sheet
Temperature detector QAA24, QAA26 1721
QAM22..., QAE21.9..., QAE22… 1771, 1792, 1791
QAD22..., QAC22, QAA64 1801, 1811, 1722
QAF63.2, QAF63.6 1821
CO2/VOC sensor QPA62... 1951
Remote setting unit QAA26 1721
FZA21.21, FZA61.11 3470, 3471
Signal source RVL55, RZF61.100 2602, 3472
RZM61.400, PTM1.2Y10 3474, 8161
Actuator SQ...6... 4553, 4574, 4685, 4686
Automatic detector identification (ASD logic), including type of detector (active or pas-
sive). Automatic activation of optimum controller configuration through ACC logic which,
via ASC, identifies the intended use of the control function. This means that the control
will be optimally matched to the plant. P-band and integral action time (TN) are sepa-
rately adjustable, so that P-control (with integral action time TN = 0) or PI control can be
selected.
The controller is supplied as a PI controller. The setpoints of heating and cooling can be
adjusted separately. Overlapping of heating / cooling sequences is not possible.
For the control of mixed air dampers or HR equipment, both the operating action and
the operating mode can be selected.
The actual values of the various outputs are permanently displayed.
Accessories
Ordering
Equipment
combinations
Technical design
Control

Siemens Building Technologies CM2N3204E / 1.1999
Landis & Staefa Division 3/20
• Room-supply air temperature or extract air-supply air temperature cascade control.
The connection of room or extract air temperature detectors (terminal B1) and supply
air temperature detectors (terminal B2) automatically activates cascade control.
With cascade control, the room or extract air temperature is maintained at a constant
level. The room or extract air temperature is the controlled variable whose setpoint
can be read off and adjusted on the controller’s second operating level.
The supply air temperature is shifted in function of the deviation of the room / extract
air temperature from the setpoint of room / extract air temperature. The extent of set-
point shift is calculated via the cascade authority (adjustable from 0 to 20).
- Room-supply air temperature or extract air-supply air temperature cascade control
with fixed supply air limitations (mode of control 1).
If the supply air temperature falls below the limit set on the controller, the inbuilt
minimum limitation will take command of control to prevent the supply air tempera-
ture from falling further.
The set limit is maintained at a constant level. The same considerations apply to
maximum limitation.
- Room-supply air temperature or extract air-supply air temperature cascade control
with shifting supply air limitations (displacement ventilation) (mode of control 2).
The shifting limits of the supply air temperature are calculated in function of the ac-
tual room or extract air temperature, whereby the supply air temperature must re-
main within the boundaries dictated by the selected values of minimum and maxi-
mum limitation.
• Supply air temperature control (mode of control 3).
If a supply air temperature detector (terminal B2) is connected, supply air temperature
control is automatically activated. With this mode of control, the supply air temperature
is maintained at a constant level.
The required mode of control can be selected.
The RWI65.02 is a sequence controller with three modulating outputs (Y10 = heating,
Y20 = cooling, Y30 = HR) and one switching output (Q13/Q24 = cooling).
It allows control sequences using both operating actions, for dampers and HR equip-
ment. Both operating action and control sequences are adjustable (DIL switches no. 4
to 7).
100
Y30
min
Y10/Y30 Y30/Y10 Y20
SA
SD
T
w
h
w
c
X
P1
T
n1
X
P3
T
n3
X
P2
T
n2
Y[ % ]
3204D03E
(DtPnt 33)
(DtPnt 32)
(DtPnt 6)
The basis used for compensation are the setpoints selected on the controller. These
basic setpoints can be shifted as follows:
• compensation of controller setpoint in function of the outside temperature (terminal
B4); with this function, summer/winter compensation is integrated in the controller; the
compensation characteristic is adjustable
• compensation by means of an active or passive setting unit, either as an absolute
setpoint or in the form of setpoint shifting via signal input «Z»
• compensation across the entire setpoint range by a Landis & Staefa building auto-
mation system via the FLN bus and FLN communication insert AZI65.1
Temperature control
Control sequences
and operating action
Function diagram
Setpoint compensation

CM2N3204E / 1.1999 Siemens Building Technologies
4/20 Landis & Staefa Division
This function is intended to make optimum use of the cooling energy supplied to the
plant. Based on the measured differential of outside and room or extract air tempera-
ture, the plant is operated either with reduced amounts of outside air or with heat recov-
ery.
In that case, the controller overrides normal control and acts on position signal output
Y30 to position it to 100 % with HR (DC 10 V) or to Y30min.. This function can be se-
lected (DIL switch no. 3).
10
0
T
B4 < B1
B4 > B1
B4 > B1
10
0
10
0
Y30 [V]
min
Y30
min
Y30
00
B4 < B1
∆T
10
02 K2 K
Y30 [V] Y30 [V] Y30 [V]
∆TT
3204D02E
Mixing dampers HR equipment
During non-occupancy periods, «Unoccupied heating mode» or «Unoccupied cooling
mode» is automatically used, provided enabling took place (can be set for each func-
tion) and the respective preconditions are met. The factory-set minimum operating time
is 30 min (adjustable from 0 to 12 h).
«Unoccupied heating mode» becomes active when the set supporting level for heat-
ing (adjustable from 0 to 30 °C) is reached. Heating is provided until the room or extract
air temperature exceeds the supporting level by 1 K. In that case, the fans run at speed
I or II (depending on the preselected speed). Outputs Y20 and Y30 with operating action
« \ » are disabled (0 %).
«Unoccupied cooling mode» becomes active when the set supporting level for cooling
(adjustable from 20 to 50 °C) is reached. Cooling is provided until the room or extract air
temperature falls below the supporting level by 1 K. In that case, the fans run at speed I
or II (depending on the preselected speed). Outputs Y10 and Y30 with operating action
« \ » are disabled (0 %).
During non-occupancy periods in the summer, this function is automatically activated if
- the function has been enabled
- both the room and the outside temperature exceed their adjusted limits, and
- the difference between room and outside temperature exceeds the value set.
If the function is activated, cool outside air is drawn into the building. In that case, the
fans run at speed I or II (depending on the preselected speed). Outputs Y10, Y20 and
Y30 with operating action « \ » are disabled (0 %). The factory-set minimum operating
time is 30 min. It is adjustable (from 0 min to 12 h).
Maximum Economy
Changeover (MECH)
Unoccupied heating
and cooling mode
Night purging

Siemens Building Technologies CM2N3204E / 1.1999
Landis & Staefa Division 5/20
20
22
24
26
18
16
14
12
t
Nmin
T [˚C]
R/A
t
T
T
R
A
Room temperature
limit
(DtPnt 12)
Outside temperature
limit
(DtPnt 13)
Night purging active
(DtPnt 15)
End of
occupancy time Beginnning of occupancy time
Delta
(DtPnt 14)
3204D04E
This function enhances comfort and optimizes energy consumption in rooms with vary-
ing occupancy levels. An integral CO2/VOC controller reduces the CO2or CO2/VOC
concentrations in the space. The P-band, the switching values for the fan speeds and
the design value at full occupancy are adjustable; the switching differential is 160 ppm.
Using the detectors connected to signal inputs Z, B1 and B2, the controller acquires the
actual temperature and CO2 values. If the CO2or CO2/VOC concentrations in the
space exceed the switching value of fan speed I + ½SD, the temperature controller is
activated and the fan will run at speed I. The temperature controller maintains the prese-
lected setpoint (Comfort or Economy). If the CO2or CO2/VOC concentrations increase
further, fan speed II will be activated. Between this function and the step output of the
time switch program, maximum value selection takes place, with both functions having
the same priority. In the case of systems with recirculated air dampers, the damper
control function is activated also. Here, Y30 minimum limitation, recirculated air startup
mode and the frost protection controller with a higher priority act on the Y30 control sig-
nal.
Integral limit controller for HR equipment such as thermal wheel type heat exchangers,
plate heat exchangers, and glycol circuits: setpoint, P-band and integral action time are
adjustable. The limit controller is active only when the plant is in operation (fan speed I
or II).
Using the detectors connected to signal inputs Z, B1 and B2, the controller acquires the
actual temperatures. The manipulated variables delivered by the integral limit and tem-
perature controllers are compared with one another with the help of a priority selector,
which selects the manipulated variable with the smallest value (minimum selection).
This manipulated variable reduces the output of the HR equipment. Since a certain
amount of heat is not now available from the HR equipment, the balance is delivered by
a downstream air heater battery (terminal Y10).
For ventilating and air conditioning plants using hot water heating coils:
all values for frost protection (response temperatures, setpoints, P-bands, and integral
action times) are preset and can be changed. The temperature is acquired either in the
water circuit or at the air outlet of the hot water heating coil.
The protective actions are the following:
• continuous opening of the heating valve, activation of the hot water circulator
• deactivation of the fan or closing of the air dampers
• maintaining the temperature when the fans are deactivated (only on the water side,
setpoint «Standby controller»)
• fault status signal when there is risk of frost
Use of the following detectors is a prerequisite:
QAE22... or QAD22 for frost protection on the water side.
QAF63.2, QAF63.6 for frost protection on the air side.
Function diagram
Demand controlled
ventilation
Anti-icing protection for
HR equipment
Frost protection
(on the water or air side)

CM2N3204E / 1.1999 Siemens Building Technologies
6/20 Landis & Staefa Division
T Temperature in the hot water heating coil’s circuit, or air temperature just after the heating coil
Q Load
Y Manipulated variable
Y10 Control command «Heating valve»
Q13/Q14 Relay output «Hot water circulator or electric air heater battery»
Q33/Q34 Relay output «Fan speed I»
Q33/Q44 Relay output «Fan speed II»
Xpd P-band «Frost protection controller» (data point 18)
Xpn P-band «Standby controller» (data point 19)
wwFrost alarm value (data point 16)
wwn Setpoint «Standby controller» (data point 17)
tPmin Min. running time of hot water circulator (data point 48)
The startup mode is only used with the heating sequence Y30 with operating action «/»
(plants using recirculated air dampers). On plant startup, supply air temperature control
or one of the two cascade control modes is activated.
The period of time for startup mode can be set from 0 s to 60 min. During this time, the
cooling sequence (Y20) is disabled and the hot water circulator (Y10) is activated. The
plant operates with 100 % recirculated air (prepurging).
In the case of plants that use outside detectors, this function becomes active only at
outside temperatures below 15 °C.
In the case of plant startups initiated by «Unoccupied heating mode», «Unoccupied
cooling mode» or «Night purging», this function remains inactive.
Plant operation can be controlled from the following locations:
manual switch (operating level 1: buttons 1 to 4), communication (FLN bus), «External
switch» (E7, E8), «Extended operation» (E7, E8), time switch program, «Demand con-
trolled ventilation», «Unoccupied heating mode», «Unoccupied cooling mode», night
purging, fault, commissioning.
• From an external switch:
the functions of the manual switch on the RWI65.02 (operating level 1, buttons 1 to 4)
can be provided by a 4-step rotary switch with two levels.
• By the function «Extended operation»:
when a pulse (of at least 3 s) is fed to E7, the plant will be operated at fan speed I;
when a pulse (of at least 3 s) is fed to E8, the plant will be operated at fan speed II.
• Time switch program:
the time switch integrated in the RWI65.02 facilitates the setting of four switching
times per day; each switching time can be assigned a fan switch position (off, speed I,
or speed II) and a setpoint pair (Economy and Comfort); the settings are made on op-
erating level 3.
• Summer-/wintertime changeover
Function diagrams
100 100
Y[ % ]
00
TQ
w
w
X
Pd
Q33/Q34
Q33/Q44 Q13/Q14
Y10(P) Y10(PI)
Q13/Q14
2 K
100
0
T
Y10(P)
Q13/Q14
X
Pn
2K
w
wn
w
w
½ X
Pd
t
Pmin
Y[ % ] Y[ % ]
t
Pmin
t
Pmin
On the air
and the water side
Plant ON Plant OFF
On the air
and the water side On the air side
(DtPnt 16) (DtPnt 18) (DtPnt 17) (DtPnt 16)
(DtPnt 48) (DtPnt 48) (DtPnt 48)
3204D05E
Legend
Startup mode
Control
Switching the plant via
control inputs E7 and E8
Time switch

Siemens Building Technologies CM2N3204E / 1.1999
Landis & Staefa Division 7/20
This function prevents freeze-ups of the hot water heating coil at low outside tempera-
tures (especially in plants that use on/off dampers).
The period of time preheating is active can be adjusted from 0 s to 10 min.
When the plant is switched on, first, only the hot water circulator (Q13/Q14) is activated
while the hot water valve (Y10) is fully open.
To protect the plant, fan speed II is disabled when outside temperature are very low. At
what outside temperature this function is activated depends on the value set (adjustable
from −50 °C to +150 °C). To prevent the controlled system from oscillating at greatly
varying outside temperatures, the RWI65.02 operates with a fixed hysteresis of 2 Kelvin.
This function is used in connection with outside air handling to save energy
(predominently in rooms with low occupancy levels).
The damper sequence (Y30) with operating action « / » is not implemented as a control
sequence. During plant operation, the damper is preset to a fixed position. The fixed
value of the manipulated variable for the air dampers is adjustable from 0 to 100 %
(Y30 minimum limitation).
• For the hot water pump (DIL switch no. 8 must be in position «Hot water heating
coil»).
To avoid damage during plant off times, there are three setting choices available:
- the pump is permanently activated;
the pump is activated for 30 s at 24-hour intervals after the last operation, or
- the pump runs continuously when the outside temperature is below 5 °C; the
minimum pump running time (adjustable from 0 s to 30 min) is maintained
- the pump is periodically activated, that is, the pump is activated for 30 s after the
last operation according to the selected time (adjustable from 5 min to 24 h)
• For the chilled water pump.
To avoid damage during plant off times, it is possible to select periodic pump run. If
this function is enabled (selectable), the pump will be activated for 30 s every after-
noon at 15.00.
• Forced runup.
The fan is always started via the first speed. If the second speed is selected right from
the start, the first speed is first activated.
Switching to the second speed takes place only when the set time has elapsed
(adjustable from 0 to 5 min).
• Rundown time.
When switching down from the second to the first speed, the RWI65.02 deactivates
the second speed, and the first speed is activated only when the preset time has
elapsed (adjustable from 0 s to 5 min).
• In plants that use hot water heating coils:
- continuous checkback signals on the operational status of the plant and on the
status of the hot water circulator, based on the signals received from supervisory
elements such as flow switch and overload protection
- continuous supervision of risk of frost
- switching on and off depending on the selected alarm priority («A» or «b»)
• In plants that use electric heater batteries:
- continuous checkback signals on the operational status of the plant and, especially,
on that of the electric heater battery, based on the signals received from supervisory
elements such as flow switch, overload and overtemperature protection
- switching on and off depending on the selected alarm priority («A» or «b»)
Preheating time
Disabling of fan speed II at
low outside temperatures
Fixed preset damper
position
Periodic pump run
(pump kick)
Forced runup and
rundown time for fans
Supervision

CM2N3204E / 1.1999 Siemens Building Technologies
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• In plants that use chilled water cooling coils/chillers:
- continuous checkback signals on the operational status of the plant and on the
status of the chilled water circulator or chiller, based on the signals received from
supervisory elements such as flow switch and overload protection
- switching on and off depending on the selected alarm priority («A» or «b»)
The RWI65.02 is able to acquire and handle seven fault status signals from plant
elements and statuses. The faults are indicated on the two lines at the bottom (lines 9
and 10) of the display when the front door is closed.
I,II
E6E4
E1
E2
E5
B9
E3
∆p
!
10
9
A 0 b 0
3204Z01
1 2 0
1234
657
1 Supervision of risk of frost (signal input B9)
Display: 0 = normal, «A» or «b» = frost alarm
2 Supervision of air flow (signal input E2)
Display: 0 = normal, 1 = start phase, «A» or «b» = faulty flow
3 Overload of chiller or chilled water circulator (signal input E4)
Display: 0 = Q13/Q24 cooling deactivated, 1 = Q13/Q24 cooling activated,
«A» or «b» = cooling at fault
4 Freely available, e.g. for filter supervision (signal input E6)
Display: 0 = normal, 1 = start phase, «A» or «b» = fault at E6
5 Overload/overtemperature at hot water circulator or electric heater battery (signal input E3)
Display: 0 = Q13/Q14 heating deactivated, 1 = Q13/Q14 heating activated,
«A» or «b» = pump or electric heater battery at fault
6 Overload of fan (signal input E5)
Display: 0 = Q33/Q34/Q44 fans deactivated, 1 = Q33/Q34 fan speed I activated,
2 = Q33/Q44 fan speed II activated, «A» or «b» = fan at fault
7 Supervision of fire/smoke (signal input E1)
Display: 0 = normal, «A» or «b» = fire/smoke alarm
Depending on the priority, fault status signals are indicated by a flashing «A» or «b»
in the display and by a flashing red LED located in the acknowledge button on the unit
front. Depending on the priority coding of contact output F91 («A» and «b» or «A» or
«b»), the fault status signal can also be passed on to F91 as a common fault status
signal.
For each status input, the priority of the fault status signal («A» or «b») can be selected.
Each of the status inputs E1 through E6 can be matched to the type of contact of the
respective signal element (N.O. or N.C. contact).
For status inputs E2 and E6, it is also possible to choose alarm delays to prevent false
alarms.
When a fault is indicated, it can be acknowledged with the acknowledge button located
on the unit front. In that case, the priority indication in the display and the red LED in the
button change from flash light to steady light. The indications extinguish when the fault
status signal is no longer present at the status input, belongs to priority «b», and there
are no other fault status signals present.
If it is a fault status signal of priority «A», the steady light is maintained as long as a fault
status signal of that priority is present. If there is no more fault status signal present, the
alarm status can be cleared by pressing the acknowledge button again.
For the effects of the fault status signals at the outputs of the RWI65.02, refer to the
function flow diagrams on the last page of this data sheet.
Fault status signals and
signalling
Acknowledging the fault
status signal

Siemens Building Technologies CM2N3204E / 1.1999
Landis & Staefa Division 9/20
The controller consists of controller insert and base.
The controller insert accommodates all operating elements and the electronic circuits. It
is secured to the base by two screws which are designed such that they push the insert
away from the base when loosened.
An EEPROM stores all setting values. In the event of a power failure, the setting values
are thus retained for an unlimited period of time. The reserve for the weekly time switch
(typically 48 hours) is contained in the controller insert. For this reason, the insert can be
removed from its base without affecting the actual time settings.
The base is made of plastic and is designed for both wall and flush panel mounting. In
the case of flush panel mounting, the controller is secured by a clamp. The base carries
four terminal blocks and a terminal strip for establishing the electrical connections with
the controller insert.
The RWI65.02 is operated from four operating levels: information level, setting level,
time switch program level, and commissioning level.
When the front door is closed, the display window displays the following information:
selection of operation (black pointer), manipulated variables, temperatures, weekday,
time, and status information.
The following settings can be made (if not disabled): operating mode (Automatic, fan
speed II, fan speed I, Standby), time of day, weekday, and summer- or wintertime.
Y 20
Y 10
Y 30
T
T T
1 ... 7
+ 1h
E6E4
E1
E2
E5
B9
E3
∆p
!
2
I,II
I,II
I,II
AEROGYR RWI65.02
100
0
100
19.5
17.5
12.4
1
22.45
A0b0
120
TM
1
2
3
4
5
6
7
8
13131211109
3204Z02
1
2
3
4
5
6
7
8
9
10
1 Button for automatic plant operation ( )
2 Button for plant operation using fan speed II
3 Button for plant operation using fan speed I
4 Button for Standby mode (incl. frost protection)
5 Black pointer, indicates plant operation selected with the manual switch (buttons 1 to 4)
6 Button for setting the current weekday (Mo = 1 .... Su = 7)
7 Button for setting the actual time
8 Black pointer, indicates that the clock is set to summertime (no indication = wintertime)
9 Operating card 1 (for operating level 1)
10 LED (green) for indication of the plant’s operational status (fans ON = LED lit, OFF = dark)
11 Universal button with LED (red) for indication, acknowledgement and resetting of fault statuses
12 Buttons for adjustments
13 Key hole for opening the front door (key enclosed)
Mechanical design
Operation
Information level
(operating level 1)
Front door closed
Legend

CM2N3204E / 1.1999 Siemens Building Technologies
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After opening the front door, operating card 2 can be accessed: the 10 lines of the front
page (operating level 2) show the setting and display choices required for operation.
With the exception of lines 5 and 8, the values can be readjusted when operating level 2
is active.
Line 5 displays the actual setpoint of heating (black pointer).
After pressing button 5, the actual setpoint of cooling (no black pointer) is displayed.
When pressing both buttons at the top (lines 1 and 2) simultaneously for two seconds,
the time switch program level appears. The relevant text is on the reverse of operating
card 2.
Closing the front door automatically reactivates operating level 1.
AEROGYR RWI65.02
TM
1
2
3
4
5
6
7
8
9
10
1 2 345
Max. supply air temp.
Min. supply air temp.
Running mode
Data point number
Data point value
Comfort
Economy
Actual
Heating
Cooling
Cooling
Heating
Heating
Cooling
3204Z03E
Set point
1 Front door
2 Space for operating card 1 and Operating Instructions with normal operation data point list and description
of operating mode display 1 through 10 (operating level 2, line 8)
3 Cover with operating card 2 (front: operating level 2, rear: operating level 3)
4 Display window with ten lines
5 Function buttons to change the setpoints
The DIL switches for the configuration of the RWI65.02 are located behind the cover. To
view or change settings, the front door must be opened and the cover removed.
AEROGYR RWI65.02
TM
1
2
3
4
5
6
7
8
9
10
3204Z04
8
7
6
5
Y10 Y30
Y30
Y10 Y10
4
3
2
1
Test Run
8
7
6
5
4
3
2
1
Y30
Y30 Y10
Y30 Y30
The controller is supplied with the DIL switches set to OFF. The switch positions have
the following meaning:
Setting level (operating
level 2) and time switch
program level (operating
level 3)
Front door open
Legend
Configuring the unit with
DIL switches
Front door opened, cover
removed

Siemens Building Technologies CM2N3204E / 1.1999
Landis & Staefa Division 11/20
DIL no. ON position OFF position
8 Electric heater battery 1) Hot water heating coil 2)
7 Operating action Y10 « / » Operating action Y10 « \ »
6 Output Y30 disabled Output Y30 enabled
5 Comfort (first Y10, then Y30) Economy (first Y30, then Y10)
4 Operating action Y30 for mixing dampers Operating action Y30 for HR
systems
3
Without MECH function With MECH function
2 Not used Not used
1 Test function for production Normal DDC operation
(cannot be used)
1) Fan overrun is automatically activated
2) Frost protection controller is automatically activated
Using the AZI65.1 insert, the RWI65.02 is able to communicate with an active bus user
(master, such as the VISONIK Building Process Station, BPS) via the Floor Level Net-
work (FLN) bus. The insert contains the electronic circuits required for communication.
The communication insert slides into its compartment in grooves. The compartment be-
comes accessible after opening the front door and removing the cover. Fitting the FLN
communication insert in the RWI65.02 requires no re-commissioning but only setting of
the address, which is needed for the exchange of data in the network.
For more information, please refer to data sheet CM2N3206E, «FLN Communication
Insert».
80 % of the plastic materials used can be recycled. The controller has a super capacitor
in place of NiCd batteries which need to be replaced every two years - to enhance
operating safety and environmental protection.
The operating voltage required for the controller is AC 24 V. The transformer used must
be suitable for safety extra low voltage (SELV), 100 % duty, and must have separate
windings.
Fuses, switches, wiring and earthing must be in compliance with the local safety regula-
tions.
The limitations cannot be used as safety functions. These always require separate
safety devices.
All important variables that are required for commissioning - if known at the time of
planning - are to be shown on the plant documentation (connection diagram, etc.).
For additional information on the RWI65.02, please refer to the Reference Manual, or-
dering no. CM2Z3204E. It contains application examples, detailed function descriptions,
a data point list for commissioning, notes on safety, and so on.
The controller is designed for wall mounting (in an open space or inside a control panel)
or flush panel mounting (control panel front, console, etc.). The permissible ambient
conditions must be observed. First, the base is to be mounted and wired up. The cables
inside the base must be accommodated such that the insert can be easily fitted.
Secure fixing screws only after commissioning. The controller is supplied complete with
mounting instructions.
For commissioning, the Reference Manual, ordering no. CM2Z3204E, is required.
When commissioning the plant, all functions of the controller and of the communication
insert (if present) and the wiring of the connected units must be checked.
FLN communication
insert AZI65.1
Recyclability, environ-
mental protection, oper-
ating safety
Engineering notes
Fitting notes
Commissioning
notes

CM2N3204E / 1.1999 Siemens Building Technologies
12/20 Landis & Staefa Division
The controller is supplied with all control functions and parameters factory-set. Where
required, the RWI65.02 needs to be configured for various logic functions, such as
electric heating, where certain safety regulations must be observed.
The configuration can be changed with the help of the built-in DIL switches.
Values can be changed with the function buttons on the respective operating levels. Any
change is immediately saved when the acknowledge button is pressed (when the dis-
play stops flashing).
Note changed values on the reverse of the operating instructions (folded sheet).
Operating voltage AC 24 V ±20 %
Safety extra low voltage (SELV) to EN 60 730
External transformer (100 % duty) to EN 60 742
Fusing of supply line (external) 10 A max.
Frequency 50 Hz or 60 Hz
Power consumption 10 VA
Insulation class III to EN 60 730
Degree of protection
When mounted on a flat wall IP 40 to EN 60 529
When mounted in a control panel front
Casing IP 40 to EN 60 529
Base IP 20 to EN 60 529
Digital inputs E1...E8
Voltage at open input DC 20...23 V
Logic 0 <DC 1 V
Logic 1 >DC 5 V
Current at «Logic 0» 9 mA
Perm. line lengths with copper 1.5 mm2300 m max.
Analog inputs B1, B2, B4, B9, Z
Detectors
Passive LG-Ni1000 Ω
Active DC 0...10 V
Measuring range −50...+150 °C
Perm. line lengths with copper 1.5 mm2200 m max.
Analog outputs Y10, Y20, Y30
Output voltage DC 0...10 V
Output current ±1 mA max.
Max. load sustained short-circuit
Relay outputs Q13/Q14/Q24, Q33/Q34/Q44
Switching capacity, voltage AC 19 V min., 265 V max.
Switching capacity, current at AC 19 V 20 mA min., 4 A / 3 A1) max.
Switching capacity, current at AC 265 V 5 mA min., 4 A / 3 A1) max.
1) at cos ϕ= 0.6
Relay output F91
Output voltage AC 24 V
Switching capacity, current 20 mA min., 4 A / 3 A1) max.
Communication interface RS-485
Ambient conditions
Operation to IEC 721-3-3
Climatic conditions class 3K5
Temperature −5...+50 °C
Humidity (non-condensing) <85 % r.h.
Transport to IEC 721-3-2
Climatic conditions class 2K3
Temperature −25...+70 °C
Humidity <95 % r.h.
Mechanical conditions class 2M2
Settings
Recommendation
Technical data

Siemens Building Technologies CM2N3204E / 1.1999
Landis & Staefa Division 13/20
Electromagnetic compatibility
Emissions to EN 50 081-1
Immunity to EN 50 082-2
conformance to
EMC directive 89/336/EWG
Low voltage directive 73/23/EWG
Product standards
Automatic electric controls
for household and similar uses EN 60 730
Miscellaneous
Reserve in the event of a power failure 48 h (typically)
Connection terminals for wires 2 x 1.5 mm2or
1 x 2.5 mm2
Weight (incl. packing) 1.17 kg
G M B1 B2 B4 B9 Z GE E1 E2 E3 E4 E5 E6 E7 E8
G0 Y10 G GY20 GY30 UP UN
AZI65.1
F91 Q14 Q24 Q34 Q44
3204G01
Q13 Q33
G Operating voltage, AC 24 V (system potential)
G0 Operating voltage (system neutral)
M Measuring neutral
B1 Measuring signal from the room or extract air temperature detector (LG-Ni1000 Ω/ DC 0...10 V)
B2 Measuring signal from the supply air temperature detector (LG-Ni1000 Ω/ DC 0...10 V)
B4 Measuring signal from the outside detector (LG-Ni1000 Ω/ DC 0...10 V)
B9 Measuring signal from the frost detector (LG-Ni1000 Ω/ DC 0...10 V)
Z Measuring signal from peripheral devices (LG-Ni1000 Ω/ DC 0...10 V)
Y10 Control signal output for heating (DC 0...10 V)
Y20 Control signal output for cooling 1)(DC 0...10 V)
Y30 Control signal output for heat recovery (DC 0...10 V)
GE Signal voltage neutral for digital inputs E1 through E8
E1 Digital status input «Fire/smoke»
E2 Digital status input «Air flow signal»
E3 Digital status input «Overload hot water circulator or overtemperature electric heater battery»
E4 Digital status input «Overload of chiller or chilled water circulator»
E5 Digital status input «Overload fan»
E6 Digital status input, not used
E7 Digital input «Control input 1»
E8 Digital input «Closed input 2»
F91 Common fault status output (AC 24 V) with priority «A» and «b» or «A» or «b» (can be coded for
this output)
Q13/Q14 Potential-free relay contact output, to switch circulator or electric heater battery
Q13/Q24 Potential-free relay contact output for compressor, dx-cooling or chilled water circulator 1)
Q33/Q34 Potential-free relay contact output, to switch fan speed I
Q33/Q44 Potential-free relay contact output, to switch fan speed II
UP, UN Connections (2...3) for communication
Note: LG-Ni1000 Ωdetectors = L&S standard
Control signal outputs Y20 and Q13/Q24 are available at the same time
Connection diagram

CM2N3204E / 1.1999 Siemens Building Technologies
14/20 Landis & Staefa Division
Wiring diagram 1: measuring part for temperature with passive main and auxiliary
detectors
SP
G
B1
B1
3204A01
BM
B2 B3 B4
MB4B9
G0
N1
SN
MMMBBB
B2MMM
AC 24 V
Wiring diagram 2: measuring part for temperature with active frost detector and with
outside temperature acquisition via RVL55
SP
G
B1
B1
3204A02
BM
B2 N2 B5
MB4B9
G0
N1
SN
MMMBU4 B
B2MMM
AC 24 V
G
Wiring diagram 3: measuring part with active remote setting unit
SP
G
3204A03
R1
G0
N1
SN
Y9
Z
AC 24 V
GG0
G0
Wiring diagram 4: measuring part with passive remote setting unit
SP
G
3204A04
R2
Z
G0
N1
SN
MR
M
AC 24 V
B
B1
Wiring diagram 5: measuring part with extract air temperature detector for limit control
(anti-icing protection with HR)
SP
G
3204A08
B6
Z
G0
N1
SN
MB
M
AC 24 V
Wiring diagrams
Connections on the
measuring side

Siemens Building Technologies CM2N3204E / 1.1999
Landis & Staefa Division 15/20
Wiring diagram 6: measuring part with CO2/VOC sensor for demand controlled
ventilation
SP
G
3204A07
B7
G0
N1
SN
MB2
M
AC 24 V
M
B1 Z
B1
G
CO 2 /VOC CO 2
N1 Controller RWI65.02
N2 RVL55 with plug-in module AZY55.60
B1 Room or extract air temperature detector QAA24/QAM22...
B2 Supply air temperature detector QAM22...
B3 Outside detector QAM22.../QAC22
B4 Frost detector QAD22/QAE21.6
B5 Frost detector QAF63.2/QAF63.6
B6 Extract air temperature detector QAM22...
B7 CO2/VOC sensor QPA62...
R1 Remote setting unit FZA61.11
R2 Room unit QAA26 or setting unit FZA21.21
Wiring diagram 7: control part with regulating units for heating, cooling and HR
SP
G
G0 Y10
GY
G0
Y20 Y30
SN
N1
Y1 Y2 Y3
3204A05
AC 24 V
GGGG0G0G0
GY
G0 GY G0
N1 Controller RWI65.02
Y1 Regulating unit for heating
Y2 Regulating unit for cooling
Y3 Regulating unit for HR/recirculated air dampers
Wiring diagram 8:
GE E1 E2 E3 E4 E5 E6
Q44
Q13 Q33
Q34
3204A06
T
∆ p
F91
L
H1 K3 K4
N1
AC 230 V
AC 24 V
F3
F3
Auto
0
I II
E7 E8
Q24
F2
Q14
F1
K2
K1
S1
G
G0
F2F1
N
SP
SN
K4 K3
F4
F4
N1 Controller RWI65.02
F1...F4 Overload relay contact
H1 Auxiliary unit for common fault signal
K1 Motor contactor for hot water pump or contactor for electric heater battery
K2 Motor contactor for chilled water circulator or chiller
K3 Motor contactor for fan speed I
K4 Motor contactor for fan speed II
Legend for wiring
diagrams 1 to 6
Connections on the
control side
Connections on the
control and
supervision side

CM2N3204E / 1.1999 Siemens Building Technologies
16/20 Landis & Staefa Division
Data point values and measured values can be called up under certain data point
numbers.
The controller is supplied with all values factory-set (bold printing). These factory-
settings are selected such that the controller is suited for the majority of plants.
Each of them can be changed, if required. The factory-set data are stored in non-volatile
memory.
No. Description Range Factory-
setting
1 B9 Frost temperature −50.0...+150.0 °C (Read value)
2 Z Input variable −50.0...+150.0 °C/ (Read value)
0...2000 ppm
3 F91 Common fault relay OFF/On (Read value)
4 E7 Control input 1 1) OFF/On (Read value)
5 E8 Control input 2 1) OFF/On (Read value)
6 Y30 Minimum limitation 0...100 % 0 %
7 Fan speed 1/2 1
8 Setpoint pair (Comfort/Economy) Co/Ec Ec
9 Room temperature limit heating 0...30 °C 15 °C
10 Room temperature limit cooling 20...50 °C 30 °C
11 Minimum operating time 00.00...12.00 hh.mm 00.30 hh.mm
12 Room temperature limit 10...50 °C 22 °C
13 Outside temperature limit 5...30 °C 12 °C
14 Delta 1...20 K 5 K
15 Minimum operating time 00.00...12.00 hh.mm 00.30 hh.mm
16 Frost alarm value 2...30 °C 5 °C
17 Standby controller 2...50 °C 25 °C
18 P-band frost protection controller 1...30 K 5 K
19 P-band standby controller 1...200 K 7 K
20 TN standby controller 00.00...10.00 mm.ss 03.00 mm.ss
21 Disabling of fan speed 2 acc.
to outside temperature B4 14) −50...+150 °C −−15 °C
22 Delta for heating 1...10 K 4 K
23 Delta for cooling 1...10 K 3 K
24 KE room (cascade authority) 0...20.0 2.0
25 TN 00.00...40.00 mm.ss 08.00 mm.ss
26 P-band heating 1...200 K 20 K
27 TN heating 2) 00.00...10.00 mm.ss 02.30 mm.ss
28 P-band heat recovery 1...200 K 15 K
29 TN heat recovery 2) 00.00...10.00 mm.ss 02.00 mm.ss
30 P-band cooling 1...200 K 15 K
31 TN cooling 2) 00.00...10.00 mm.ss 02.00 mm.ss
32 Switching interval SA 1...100 % of Y20 20 %
33 Switching differential SD 1...100 % of Y20 10 %
34 Starting point 10...50 °C 25 °C
35 End point 10...50 °C 30 °C
36 Delta −10...+10 K 2 K
37 Starting point −30...+20 °C 5 °C
38 End point −30...+20 °C −20 °C
39 Delta −10...+10 K 1 K
40 E1 Fire/smoke A / b A
41 E2 Air flow supervision A / b A
42 E3 Overload pump/electric A / b A
43 E4 Overload chiller A / b A
44 E5 Overload fan A / b A
45 E6 AUX, freely available A / b A
46 B9 Frost alarm A / b A
Data point list for
normal operation
Current measured values
Limitation manipulated variable
Presettings
Unoccupied heating/cooling
mode
Night purging
Setpoints frost protec-
tion/standby controller
Parameters frost protec-
tion/standby controller
Displacement ventilation
Control parameters room
temperature controller
Control parameters supply air
temperature controller
Switching points compressor
Summer compensation
Winter compensation
Alarm priorities

Siemens Building Technologies CM2N3204E / 1.1999
Landis & Staefa Division 17/20
47 Fan overrun time 3) 00.00...30.00 mm.ss 05.00 mm.ss
48 Min. heating circulator running time 11) 00.00...30.00 mm.ss 05.00 mm.ss
49 Heating circulator kick interval 10) 00.00...24.00 hh.mm/
Auto/Cont Auto
50 Alarm delay air flow start 12) 00.00...10.00 mm.ss 00.20 mm.ss
51 Alarm delay air flow operation 12) 00.00...10.00 mm.ss 00.10 mm.ss
52 Alarm delay AUX 12) 00.00...05.00 mm.ss 00.00 mm.ss
53 E7, E8 control input on time 4) 00.00...12.00 hh.mm 00.00 hh.mm
54 Startup time (damper fully closed) 5) 00.00...60.00 mm.ss 00.00 mm.ss
55 Preheating time 00.00...10.00 mm.ss 00.00 mm.ss
56 Power up start delay 13) 00.00...30.00 mm.ss 00.00 mm.ss
57 Setpoint −10...+30 °C 1 °C
58 P-Band 1...100 K 10 K
59 TN 2) 00.00...04.00 mm.ss 01.00 mm.ss
60 Switching value fan speed I 500...1800 ppm 700 ppm
61 Switching value fan speed II 500...1800 ppm 1200 ppm
62 Design value full occupancy 500...1800 ppm 1000 ppm
63 P-band 100...800 ppm 400 ppm
64 Hours run counter 9) 0...9999 x 10 h (Read value)
65 Operation lock 6) OFF/On OFF
66 RWI software version 7) "00.00" (Read value)
67 Communication address 8) ----,0...126 - - - -
1) Indicates whether input E7, E8 is open or closed (control signal «yes» or «no»)
2) Integral action time (Tn) = 0 s means: P-control for the respective control sequence
Integral action time (Tn) > 0 s means: PI-control for the respective control sequence
3) Only when the RWI65.02 is configured for an electric air heater battery.
During the overrun time, the fan runs at speed I. On completion of the selected overrun time, the fans will
be switched off and the outside air dampers closed
4) Period of time during which the plant - after arrival of a pulse (> 2 s) at E7 or E8 - shall operate.
When set to 0 min, the plant is switched on or off the moment the signal arrives at E7 and E8 (external
time switch) (only in Automatic mode and when the internal time switch has switched off or is permanently
deactivated)
5) Period of time during which the plant may operate with 100 % recirculated air (after plant startup)
6) If operating level 1 is locked (data point value = On), it is not possible to change any values for two
minutes after closing the front door (exception: summer-/wintertime changeover).
Enabling by reopening the front door
7) The display shows the actual program number (software version)
8) Must be set if the controller is equipped with a communication module. If no communication module is
used, the value set has no effect on the RWI 65.02
9) Counted are the number of fan operating hours.
The reading can be reset either to zero or to the former value. Proceed as follows:
1. Press function button 10 (line 10)
2. Press setting button «−» if the meter shall be reset to zero, or setting button «+» if the meter
shall
be reset to the former value
3. To confirm the resetting, press function button 10 again.
10) Active only if coded for hot water heating coil!
00.00 ðCirculator kick interval is disabled
00.05 - 24.00 ðCirculator kick occurs for 30 s according to the selected interval time
Auto ðCirculator is activated for 30 s every 24 h, or runs continuously when the
outside temperature is < 5 °C; the minimum circulator running time (data
point 48) is maintained
Cont ðCirculator continuously on
11) The setting of a minimum running time avoids too frequent activation/deactivation of the circulator
12) To avoid unnecessary faulty alarms, the fault status signal can be delayed
13) After a power failure and subsequent power restoration, it may be necessary to bring the controller back
into operation with a certain delay. This is to make certain that after a power failure, all plant elements
connected to the same mains network will not be switched on at the same time (peak loads)
14) To protect the plant, the second fan speed is disabled at very low outside temperatures. In that case, only
the first fan speed will be enabled. To avoid unnecessary fan speed changes when outside temperatures
greatly vary, a hysteresis of 2 K is used
Time elements
HR anti-icing protection
Demand controlled ventilation
Miscellaneous
Explanations

CM2N3204E / 1.1999 Siemens Building Technologies
18/20 Landis & Staefa Division
Q13
Q14 Q13 Q24 Q33 Q34 Q33 Q44 Y10 Y20 Y30
I/O
A
B
A
B
E1
E2
A
B
A
B
E3
A
B
A
B
E4
A
B
A
B
E5
A
B
A
B
E6
A
B
A
B
A
B
B9
Green
LED Red LED
Fault
reaction
Explanation Heat
source
Fire/
smoke
Water
Water
Electr.
Electr.
Faulty flow
Water
Water
Electr.
Electr.
Overcurrent
hot water
circulator
Water
Water
Electr.
Electr.
Overload
el-heater
Water
Water
Electr.
Electr.
Overload
fan
Water
Water
Electr.
Electr.
AUX
Water
Water
Electr.
Electr.
Water
Water
Risk of frost
Lit
Flashing
Dark if Y10
≥ 0 %
Off if Y10 ≥ 0 %
On if Y10
≥ 0 %
3204Z05E
Overload chiller/
chilled water
circulator
Dark Off
On
Off (delayed)
Function flow
diagrams for fault
status signals
Incoming fault status
signals

Siemens Building Technologies CM2N3204E / 1.1999
Landis & Staefa Division 19/20
Q13
Q14 Q13 Q24 Q33 Q34 Q33 Q44 Y10 Y20 Y30
I/O
A
B
A
B
E1
E2
A
B
A
B
E3
A
B
A
B
E4
A
B
A
B
E5
A
B
A
B
E6
A
B
A
B
A
B
B9
Dark
Lit
Flashing
Dark if (Y10
≥ 0 %)
Off
On
Off(delayed)
Off if Y10
≥ 0 %
On if Y10
≥ 0 %
3204Z06E
Green
LED Red LED
Fault
reaction
Heat
Water
Water
Electr.
Electr.
Water
Water
Explanation
Fire/
smoke
Faulty flow
Overcurrent
hot water
circulator
Overload
el-heater
Overload
fan
AUX
Risk of frost
Water
Water
Electr.
Electr.
Water
Water
Electr.
Electr.
Water
Water
Electr.
Electr.
Water
Water
Electr.
Electr.
Water
Water
Electr.
Electr.
Overload chiller/
chilled water
circulator
Acknowledged present
fault status signals

CM2N3204E / 1.1999 Siemens Building Technologies
20/20 Landis & Staefa Division
R124.3
145
272,5
2619 58
106,5
26 2613,5
137
5,5
5,5
63
152,6
144
17,5 10
30 30
133
2,5 106,5 24 30,3
Pg 11
max. R2
138
+ 1
0
138
+ 1 0
3204M01
1919
3426
5353
66
Dimensions
1999 Siemens Building Technologies Ltd.
Dimensions in mm