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Siemens Building Technologies 

Data sheet RMH760 

 

CE1N3131en 

HVAC Products 

 

03.07.2003 

 

Perm. resistance 
 Contacts 

closed 

 Contacts 

open 

 
max. 200 

Ω

 

min. 50 k

Ω

 

 

 

Output voltage 

DC 0…10 V 

Output current 

±

1 mA 

Max. load 

continuous short-circuit 

 

 

External supply line fusing 

Non-renewable fuse (slow) 
Automatic line cutout  
Release characteristic

 

 
max. 10 A 
max. 13 A 
B, C, D to EN 60 898 

Cable length 

max. 300 m 

Relay contacts 
 Switching 

voltage 

 AC 

current 

  – At 250 V 
  – At 19 V 
 Switch-on 

current 

 
max. AC 265 V / min. AC 19 V 
max. 4 A res., 3 A ind. (cos 

φ

 = 0.6) 

min. 5 mA  
min. 20 mA  
max. 10 A (1 s) 

Contact life at AC 250 V 

At 0.1 A res. 
At 0.5 A res. 
 
At 4 A res. 
 
Red. factor at ind. (cos 

φ

 = 0.6) 

guide values: 
2×10

7

 cycles 

4×10

6

 cycles (N. O.) 

2×10

6

 cycles (changeover) 

3×10

5

 cycles (N.O.) 

1×10

5

 cycles (changeover) 

0.85 

Insulating strength 

−

 

Between relay contacts and system electronics (reinforced 
insulation)  

−

 

Between neighboring relay contacts (operational insulation), 
Y1 

⇔

 Y2; Q1 

⇔

 Q7  

−

 

Between relay groups (reinforced insulation), 
(Y1, Y2) 

⇔

 (Q1, Q7) 

 
 
AC 3750 V, to EN 60 730-1 
 
AC 1250 V, to EN 60 730-1 
 
AC 3750 V, to EN 60 730-1 

 

 

Voltage 

AC 24 V 

Power supply external 
devices (G1) 

Current  

max. 4 A 

 

 

Konnex bus 

Type of interface 
Bus loading number 
Bus power supply (decentral, can be switched off) 
Power failure of short duration to EN 50 090-2-2 

 
Konnex-TP1 
2.5 
25 mA 
100 ms with 1 extension module 

Extension bus 
 Connector 

specification 

  Number of plugging cycles  

 
4 contacts SELV/PELV 
max. 10 

Service tool connection facility RJ45-connector 
 

 

For passive measuring and positioning signals 
   LG-Ni 1000 
 0…1000 

Ω

 

 1000…1235 

Ω

 

 Contact 

sensing 

 
max. 300 m 
max. 300 m 
max. 300 m 
max. 300 m 
(measuring errors can be corrected 
on the "Settings > Inputs" menu) 

For DC 0…10 V measuring and control signals 

refer to Data Sheet of the signal 
delivering device 

For Konnex bus 
 Type 

of 

cable 

max. 700 m 
2-core without screening, twisted 
pairs 

 

 

Connection terminals 
 For 

wires 

  For stranded wires without ferrules 
  For stranded wires with ferrules 

spring cage terminals 
0.6 mm dia. …2.5 mm

2

 

0.25…2.5 mm

2

 

0.25…1.5 mm

2

 

 

Connection facility for Konnex bus 

wires cannot be interchanged 

 

 

Positioning output Y9 

 

Switching outputs 
(Q…) 

Interfaces 

Perm. cable lengths 

Electrical connections 

Содержание RMH760

Страница 1: ...econd heating circuit and DHW heat ing with extension modules Menu driven operation with separate operator unit plug in type or detached Use Office and administrative buildings Commercial buildings and shops Schools Hospitals Industrial buildings and workshops Apartment blocks and terraced houses Heating sections of ventilation and air conditioning plants Distribution zones of ventilation and air ...

Страница 2: ...ive or absolute room setpoint adjustment Connection of an external switch for Operating mode changeover Timer function Changeover to holiday mode Changeover to special day Indication of faults If more than 3 configurable inputs are required extension modules must be used Remote operation with multifunctional room unit via Konnex bus Heating circuit controller Weather compensated flow temperature c...

Страница 3: ...rging pump with or without mixing valve control Storage tank charging via internal or external heat exchanger Time programs for DHW heating and the circulating pump Operating modes AUTO continuously Normal continuously Reduced Protective mode Legionella function For a more detailed description of all controller functions refer to Basic Documentation P3131 Type summary Type of unit Type reference D...

Страница 4: ...721 Room temperature sensor LG Ni 1000 QAA64 N1722 Wind effect sensor DC 0 10 V QAV92 N1946 Solar impact sensor DC 0 10 V QLS60 N1943 Type of room unit Type reference Data Sheet Room temperature sensor with setpoint adjuster QAA25 N1721 Room temperature sensor with setpoint readjuster QAA27 N1721 Room unit with Konnex interface QAW740 N1633 Type of remote setpoint adjuster Type reference Data Shee...

Страница 5: ...circuits can be provided either by the controller or the RMZ782 heating circuit module The available choices are the same with both types of unit provided the required connection terminals for the desired auxiliary function are present Please also note the following If the controller and heating circuit module do not have a sufficient number of config urable connection terminals an additional exte...

Страница 6: ...urn temperature via a mixing valve depending on the temperature acquired with B1 The module also controls boiler pump M1 Boiler module RMZ781 this module controls the boiler temperature depending on the temperature acquired with B2 and also controls system pump M2 One of the basic types 4 must be selected on the controller G3 3131S41 M2 RMZ782 RMZ781 B2 B1 M1 Y1 Y2 B1 Boiler return temperature sen...

Страница 7: ...a twin pump Y5 Mixing valve or 2 port valve The illustrations contained in this section use the following symbols for precontrol boiler temperature control and DHW heating Precontrol Boiler temperature control DHW heating 3131S07 RMH760 0 1 RMZ783 3131S05 RMH760 0 2 3131S08 0 3 RMH760 RMZ783 3131S06 RMH760 0 4 RMZ782 0 5 3131S09 RMZ783 RMH760 RMZ782 With all basic types 1 x primary controller vari...

Страница 8: ...ected RMH760 2 0 3131S42 RMH760 2 1 RMZ783 3131S19 RMH760 2 2 RMZ782 3131S17 3131S20 RMH760 2 3 RMZ782 RMZ783 RMH760 2 4 RMZ782 RMZ782 3131S18 RMH760 2 5 RMZ782 RMZ782 3131S21 RMZ783 With all basic types 3 x boiler pump variants G1 and G2 can be selected RMZ781 3 0 RMH760 3131S22 RMZ783 RMZ781 3 1 RMH760 3131S25 RMZ781 3 2 3131S23 RMH760 RMZ781 3 3 RMH760 3131S26 RMZ783 Basic types 2 x Basic types...

Страница 9: ...81 4 0 3131S31 RMH760 RMZ782 4 1 RMZ781 RMZ783 RMH760 RMZ782 4 2 3131S29 RMZ781 RMZ782 RMZ781 4 3 RMH760 3131S32 RMZ783 3131S30 RMZ782 RMH760 RMZ782 4 4 RMZ781 3131S33 RMZ782 4 5 RMZ781 RMZ782 RMH760 RMZ783 Mechanical design The controller consists of terminal base and controller insert It has a plastic housing with the printed circuit boards 2 terminal levels and carries the connecting elements e...

Страница 10: ...itches wiring and grounding must be in compliance with local regulations Sensor wires should not be run parallel to mains carrying cables powering actuators pumps etc The controller can be used with a maximum of 4 extension modules The reference room for control with a room temperature sensor should be the room that cools down quickest That room may not be equipped with thermostatic radiator valve...

Страница 11: ...ler is supplied complete with Installation Instructions and Operating In structions Commissioning notes The operator unit can be removed and plugged in or connected while the controller is in operation For commissioning there are several auxiliary functions available refer to Service and operating functions Commissioning is carried out with the RMZ79 operator unit or the OCI700 1 ser vice tool Dis...

Страница 12: ...Q7 AC 3750 V to EN 60 730 1 AC 1250 V to EN 60 730 1 AC 3750 V to EN 60 730 1 Voltage AC 24 V Power supply external devices G1 Current max 4 A Konnex bus Type of interface Bus loading number Bus power supply decentral can be switched off Power failure of short duration to EN 50 090 2 2 Konnex TP1 2 5 25 mA 100 ms with 1 extension module Extension bus Connector specification Number of plugging cycl...

Страница 13: ...uilding Electronic System HBES EN 60 730 1 EN 60 730 2 11 EN 50 090 2 2 Electromagnetic compatibility Immunity industrial sector Emissions domestic sector light industry Home and Building Electronic System HBES EN 61 000 6 2 EN 61 000 6 3 EN 50 090 2 2 conformity to EMC directive Low voltage directive 89 336 EEC 73 23 EEC conformity to Australian EMC Framework Radio Interference Emission Standard ...

Страница 14: ...nal source Range Room operating mode External contact On off Timer function External contact On off Heat demand External contact On off Special day External contact On off Holidays External contact On off Error message 1 External contact On off Error message 2 External contact On off Error message 3 External contact On off Error message 4 External contact On off Type of signal Signal receiver Rang...

Страница 15: ...ature sensor e g QAD22 B11 B12 E g 2 flow temperature sensors for averaging B9 Outside sensor e g QAC22 N1 Heating controller RMH760 X3 E g room temperature sensor configurable input X31 X32 E g 2 room temperature sensors for averaging X4 E g return temperature sensor configurable input X5 E g solar impact sensor QLS60 configurable input Y9 E g actuator with DC 0 10 V input configurable output Y14...

Страница 16: ...s Data sheet RMH760 CE1N3131en HVAC Products 03 07 2003 Dimensions 3 80 3 35 5 3144M01 66 4 173 153 90 45 18 RMZ790 10 5 5 3 5 2 2 ø ø EN 60 715 TH 35 7 5 44 Dimensions in mm 2003 Siemens Building Technologies Ltd Subject to alteration ...

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