Operation Manual

ManualsBrandsSiemens ManualsAir ConditioningAEROGYR RWI65.02

Siemens Building Technologies CM2N3204E / 1.1999

Landis & Staefa Division 1/20

204

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 CO

/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

Summary of content (20 pages)

PAGE 1
3 204 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. Use 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.
PAGE 2
• supervise - Accessories 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 Instructions (de, fr, it) Instructions (en, sv, fi, no) Instructions (nl, es, da) AZI65.1 ARG65.43 ARG65.44 ARG65.
PAGE 3
Temperature control • 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.
PAGE 4
Maximum Economy Changeover (MECH) 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 temperature, the plant is operated either with reduced amounts of outside air or with heat recovery. 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 selected (DIL switch no. 3).
PAGE 5
Function diagram TR/A [˚C] 26 Night purging active TR 24 Room temperature limit 22 (DtPnt 12) TA Delta (DtPnt 14) 20 t 16 3204D04E 18 Nmin (DtPnt 15) 14 Outside temperature limit 12 (DtPnt 13) t End of occupancy time Beginnning of occupancy time Demand controlled ventilation This function enhances comfort and optimizes energy consumption in rooms with varying occupancy levels. An integral CO2 / VOC controller reduces the CO2 or CO2 / VOC concentrations in the space.
PAGE 6
Function diagrams Plant ON Plant OFF On the air and the water side On the air and the water side Y[%] On the air side Y[%] 100 Y[%] 100 Y10(P) Y10(PI) 3204D05E Y10(P) 100 0 ww (DtPnt 16) 2K T XPd (DtPnt 18) ½ X Pd Q33/Q34 Q33/Q44 t Pmin (DtPnt 48) Q13/Q14 0 Q w wn (DtPnt 17) t Pmin (DtPnt 48) Q13/Q14 0 ww (DtPnt 16) 2K T X Pn t Pmin (DtPnt 48) Q13/Q14 Legend T Q Y Y10 Q13/Q14 Q33/Q34 Q33/Q44 Xpd Xpn ww wwn tPmin Startup mode The startup mode is only used with the heating s
PAGE 7
Preheating time This function prevents freeze-ups of the hot water heating coil at low outside temperatures (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.
PAGE 8
• In plants that use chilled water cooling coils/chillers: Fault status signals and signalling 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.
PAGE 9
Mechanical design 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.
PAGE 10
Setting level (operating level 2) and time switch program level (operating level 3) 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).
PAGE 11
DIL no.
PAGE 12
Settings 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.
PAGE 13
Electromagnetic compatibility Emissions to Immunity to conformance to EMC directive Low voltage directive Product standards Automatic electric controls for household and similar uses Miscellaneous Reserve in the event of a power failure Connection terminals for wires EN 50 081-1 EN 50 082-2 89/336/EWG 73/23/EWG EN 60 730 48 h (typically) 2 x 1.5 mm2 or 1 x 2.5 mm2 1.17 kg Weight (incl. packing) G M B1 B2 B4 B9 Z GE E1 E2 E3 E4 E5 E6 E7 E8 Q13 Q33 AZI65.
PAGE 14
Wiring diagrams Wiring diagram 1: measuring part for temperature with passive main and auxiliary detectors 3204A01 Connections on the measuring side SP AC 24 V B M G B M B1 B2 B2 M B1 M B M B3 B4 M B M B4 B9 M G0 N1 SN 3204A02 Wiring diagram 2: measuring part for temperature with active frost detector and with outside temperature acquisition via RVL55 SP AC 24 V B M G B1 M B M B1 B2 M B2 U4 M N2 B4 M G B M B5 B9 M G0 N1 SN 3204A03 Wiring diagram 3: measuring part with
PAGE 15
3204A07 Wiring diagram 6: measuring part with CO2/VOC sensor for demand controlled ventilation AC 24 V SP G G CO2/VOC CO2 M B1 B2 M B1 Z M B7 G0 N1 SN Legend for wiring diagrams 1 to 6 N1 N2 B1 B2 B3 B4 B5 B6 B7 R1 R2 Controller RWI65.02 RVL55 with plug-in module AZY55.60 Room or extract air temperature detector QAA24/QAM22... Supply air temperature detector QAM22... Outside detector QAM22... / QAC22 Frost detector QAD22 / QAE21.6 Frost detector QAF63.2 / QAF63.
PAGE 16
Data point list for normal operation 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 factorysettings 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.
PAGE 17
47 48 49 Fan overrun time 3) Min. heating circulator running time 11) Heating circulator kick interval 10) 50 51 52 53 54 55 56 HR anti-icing protection 05.00 mm.ss 05.00 mm.ss Alarm delay air flow start 12) Alarm delay air flow operation 12) Alarm delay AUX 12) E7, E8 control input on time 4) Startup time (damper fully closed) 5) Preheating time Power up start delay 13) 00.00...30.00 mm.ss 00.00...30.00 mm.ss 00.00...24.00 hh.mm/ Auto/Cont 00.00...10.00 mm.ss 00.00...10.00 mm.ss 00.00...05.00 mm.
PAGE 18
Function flow diagrams for fault status signals I/O E1 E2 Explanation Fire/ smoke E3 Overload el-heater E5 E6 B9 Overload chiller/ chilled water circulator Overload fan AUX A Water B Electr. A Electr. B Water A Water B Electr. A Electr. B Water A Water B Electr. A Electr. B Water A Water B Electr. A Electr. B Water A Water B Electr. A Electr. B Water A Water B Electr. A Electr.
PAGE 19
I/O E1 E2 E3 Explanation Fire/ smoke E5 E6 B9 Fault reaction Water A Water B Electr. A Electr. B Water A Water B Electr. A Electr. B Water A Water B Electr. A Electr. B Water A Water B Electr. A Electr. B Water A Water B Electr. A Electr. B Water A Water B Electr. A Electr.
PAGE 20
Dimensions 145 272,5 19 26 58 106,5 R124 .3 26 13,5 26 3204M01 137 152,6 26 34 +1 0 53 138 133 53 144 2 5,5 66 .R ax 5,5 m 19 63 17,5 10 30 Dimensions in mm CM2N3204E / 1.1999 20/20 30 Pg 11 2,5 106,5 24 30,3 138 +1 0  1999 Siemens Building Technologies Ltd.