User Manual

ManualsBrandsSiemens ManualsI/O ModulesOption Modules RMZ781, RMZ782, RMZ783

CE1N3135en

17.06.2003

Siemens Building Technologies

HVAC Products

135

Synco™700

Option Modules

RMZ781

RMZ782

RMZ783

• Option modules for use with the RMH760 heating controller to provide the

following auxiliary functions:

− Demand-dependent boiler temperature control

− Maintained boiler return temperature with mixing circuit

− Control of a heating circuit

− DHW heating

• Operation via the RMH760 heating controller

Use

For use in heating plants controlled by the RMH760 heating controller. For the heating

controller’s field of use, refer to Data Sheet N3131.

Functions

• 2 ready configured measuring inputs (averaging possible) for:

− Boiler temperature

− Return temperature

• 1 configurable input for:

− Heat requisition with a digital signal (on / off)

− Heat requisition with a DC 0…10 V signal

Functions with boiler

module RMZ781

Measuring and input func-

tions

Summary of content (10 pages)

PAGE 1
3 135 Synco™700 RMZ781 RMZ782 RMZ783 Option Modules • Option modules for use with the RMH760 heating controller to provide the following auxiliary functions: − Demand-dependent boiler temperature control − Maintained boiler return temperature with mixing circuit − Control of a heating circuit − DHW heating • Operation via the RMH760 heating controller Use For use in heating plants controlled by the RMH760 heating controller. For the heating controller’s field of use, refer to Data Sheet N3131.
PAGE 2
Control and limitation functions • Demand-dependent boiler temperature control • Maximum limitation of the boiler temperature • Minimum limitation of the boiler return temperature or maintained boiler return temperature (this function also requires heating circuit module RMZ782) Switching functions Ready configured switching outputs for: • Control of a modulating or 1- or 2-stage burner • Control of the boiler pump or system pump or bypass pump Other functions • • • • • Boiler operating mode with or w
PAGE 3
• Storage tank charging via the common flow, with pump or mixing valve, or storage tank charging via the heat exchanger, with pump or mixing valve • Storage tank charging according to a time program Switching functions • Ready configured switching outputs for the − control of a 3-position actuator − control of the charging pump • 2 configurable relay outputs with N.O.
PAGE 4
Mechanical design Basic design In terms of mechanical design, the option modules are identical to the heating controller RMH760. No wiring between the modules or to the heating controller is required; the electrical connections are made by attaching the modules to the controller. Heating controller RMH760 with attached option module RMZ78… Operation The option modules have no setting and operating elements; operation takes place with the operator unit RMZ790 or RMZ791.
PAGE 5
Mounting and installation notes Low-voltage side Mains voltage side • The module are designed for: − Mounting in a standard cabinet as per DIN 43 880 − Wall mounting on an existing tophat rail (EN 50 022-35×7.
PAGE 6
Positioning Outputs Switching outputs (Q…) Perm. resistance Contacts closed Contacts open max. 200 Ω min. 50 kΩ Output voltage Output current Max. load DC 0…10 V ± 1 mA continuous short-circuit External supply line fusing Non renewable fuse (slow) Automatic line cutout Release characteristic Cable length Relay contact data Switching voltage AC current – At 250 V – At 19 V Switch-on current Contact life at AC250 V At 0.1 A res. At 0.5 A res. At 4 A res. Red. fakt. at ind. (cos φ = 0.
PAGE 7
Materials and colors Terminal base Module insert Packaging Norms and standards Product safety Automatic electrical controls for household and similar use Special requirements for energy controllers Electromagnetic compatibility Immunity (industrial sector) Emissions (domestic sector, light industry) Weight Polycarbonate, RAL 7035 (light-gray) Polycarbonate, RAL 7035 (light-gray) corrugated cardboard EN 60 730-1 EN 60 730-2-11 EN 61 000-6-2 EN 61 000-6-3 -conformity to EMV directive Low-voltage direct
PAGE 8
Heating circuit module RMZ782 Low-voltage inputs Terminal B1 X2, X3 Configu- Measuring variable / ration power supply Fixed Controlled variable (depending on the basic type) Free Room temperature Return temperature Low-voltage outputs M Fixed Room operating mode Comfort extension Room temperature setpoint Room temperature setpoint Ground Y9 G1 G0 Free Fixed Fixed Continuous signal System potential System neutral Signal source or signal receiver 1 or 2 sensors LG-Ni 1000 Range, voltage, state –50
PAGE 9
Mains voltage All mains voltage terminals are designed for AC 24…230 V. Terminal Configuration Y53 Fixed Y54 Fixed Y63 Fixed Y64 Fixed Q83 Fixed Q84 Free Q93 Fixed Q94 Free Q31 Fixed Q32 Fixed Q34 Fixed Function Input for Y54 Mixing valve opens Input for Y64 Mixing valve closes Input for Q84 Switching on / off Input for Q94 Switching on / off Input for Q32, 34 Pump off Pump on Signal receiver Type of contact 3-position actuator Y1 N.O. 3-position actuator Y1 N.O. * N.O. * N.O.
PAGE 10
3135A03 L B AC 24...230 V Heating circuit module RMZ782 M B B1 B1 M M X2 B M X3 X3 M X2 M G1 G0 Y9 N1 Y13 Y23 Q13 Y14 Y24 Q14 Y1 Y9 A2 Y2 N M1 Y1 N A2 B1 M1 X2 X3 Y1 Y9 L AC 24...