controlled residential ventilation Table of contents Overview of controlled residential ventilation 3 Damper control for a balanced air volume 4 VAV control system for a defined room temperature 7 Complete solution with VAV control system and Fan Optimiser 0 www.belimo.com A4- en v. 07.200 Subject to changes / 2
2 / 2 A4- en v. 07.200 Subject to changes www.belimo.com
Controlled residential ventilation Description, function The ventilation system supplies fresh outside air to the living and sleeping areas and suctions air out of the kitchen and moist areas. A heat exchanger ensures the recovery of heat from the exhaust air. There is no odour propagation because the air flows from the living areas to the kitchen, from which it is channeled away. Overflow air vents are required at the doors in order to permit the air to flow back. Each apartment has its own ventilation controls in multi-family dwellings which have controlled residential area ventilation systems. The exhaust air from the individual apartments is collected and channeled through a heat exchanger. This energy is used to heat the supply air at a central point and to supply the separate residential units in accordance with individual requirements. Principle Outside air Outgoing air Fans Heat recovery system Dampers, supply air volume controllers Exhaust air exhaust air Supply air Plan view, possible implementation M EHO EHO M Residential controller EHO Energy Hold Off switch VAV controller, damper actuator e.g. kitchen hood fan M Heating valve e.g. light switch www.belimo.com A4- en v. 07.200 Subject to changes 3 / 2
Residential ventilation: damper control for a balanced air volume Description, function Single-channel system for controlled residential ventilation with a defined air volume. The is therefore operated with the "Air volume control" strategy in this example. Air dampers can be connected for the purpose of controlling the volumetric flow of air. The override functions "", "" and "Energy Hold Off (EHO)" are activated by external contacts. The room protection function is implemented for t R <4 C by means of the internal or external temperature sensor. Maximum room temperature monitoring can be activated as an option. If the room temperature exceeds 28 C, then ventilation will be enabled at maximum volume during EHO, in order to move the warm air out of the room as rapidly as possible. The heating valve has no function in this application. Principle diagram House doors Functional diagram Output Y [%] [Pos.] [V] W - W + Operating mode 00 Max 0 Max 70. 7.7 Notes - Mode setting damper actuators for this application: 2... 0 V - Minimal position damper actuators only with MF/MP (adjustable with PC-Tool): e.g. 25% 30. 4.4 0 Min 2 ao & 2 COMF Min. Closed 0 Closed W Setpoint potentiometer Connection, allocation AC 24 V External NTC Temperature sensor EHO 3 4 2 5 ao3 ao2 ao U5 U5 2 ai/di di2 di3 ai2 2 9 0 6 7 8 2 3 y 5 U5 Supply air damper 2 3 5 y U5 Exhaust air damper 4 / 2 A4- en v. 07.200 Subject to changes www.belimo.com
Damper control for a balanced air volume Input and output allocation Inputs - ai/di Energy Hold Off (EHO) / ext. sensor - di2 Override kitchen - di3 Override bathroom Outputs - ao System output supply air damper - ao2 System output exhaust air damper - ao3 No function Override functions If more than one override function is switched on at the same time, then the one with the highest priority will be activated. Priority : Priority 2: Priority 3: Priority 4: Room protection (Frost) This function is activated when the room temperature falls below 4 C (protective function). (di2) In order to minimise the pressure differences within the rooms, the ventilation is, for example, overridden by means of the kitchen hood fan or the chimney extraction system. Bath (di3) To move moist or polluted air out of the residential area, the ventilation can, for example, be overridden by means of the light switch in the bathroom or a humidistat. Energy Hold Off (di) The ventilation system is closed completely in order to avoid unnecessary energy consumption during prolonged absences. Forced ventilation during Energy Hold Off For reasons of air hygiene, the ventilation will be switched on 3 times each day for 30 minutes during Energy Hold Off. The starting times are calculated by the and cannot be modified. Maximum temperature monitoring during Energy Hold Off The room temperature can be monitored to a maximum value of 28 C as an additional protective function. This function must be enabled by setting the DIP switch 5 = ON. (see page 6) Functions P: Room protection P2: P3: P4: EHO P4: EHO P4: EHO Components t R <4 C CLOSED Hygiene t R >28 C Supply air (ao) 00% = max 00% = max 00% = max CLOSED 00% = max 00% = max Exhaust air (ao2) 00% = max 0% = min 00% = max CLOSED 00% = max 00% = max List of materials Room controller, AC 24 V P (with hidden setpoint adjustment) Supply air damper, AC 24 V / 2... 0 V LM24A-MF Notes No MIN position can be defined with the CM24-SR. = 0% = CLOSED Exhaust air damper, AC 24 V / 2... 0 V NM24A-MF LM24A-MP NM24A-MP LM24A-MF NM24A-MF LM24A-MP NM24A-MP www.belimo.com A4- en v. 07.200 Subject to changes 5 / 2
Damper control for a balanced air volume Configuration, settings DIP Default settings : ON OFF 2 3 4 5 6 Notes DIP, 3 and 6 have no influence in this application. 2 Control strategy air volume Control strategy room temperature 3 4 Reset MAX COMF Off 5 Max. temp. monitoring Off 6 Reset MAX COMF h Max. temp. monitoring On Operation DIP Operating mode Setpoint COMF COMF - MIN - MAX Rotary button on the front P COMF - MIN - MAX Rotary button under the front 6 / 2 A4- en v. 07.200 Subject to changes www.belimo.com
Residential area ventilation: VAV control system for a defined room temperature Description, function The connected VAV controllers for regulated residential area ventilation are guided by the room controller with differential volumes in accordance with the room temperature. The controller is actuated in this application by means of the "Temperature" strategy. A 3- point signal (optional thermal actuator) acts as the control for the heating valve actuator. The override functions are activated by external contacts. The room protection function is implemented for t R <4 C by means of the internal or external temperature sensor. Maximum room temperature monitoring can be activated as an option. If the room temperature exceeds 28 C, then ventilation will be enabled at maximum volume during energy block EHO, in order to move the warm air out of the room as rapidly as possible. Principle diagram House doors Residential area M Functional diagram Output Y [%] [Pos.] [V] X P htg X P clg Operating mode 00 Max 0 Max Notes - Mode setting VAV controller for this application: 2... 0 V - Heating output ao3: 3-point actuator, optimised for a running time of 50 seconds 0 Min 2 ao3 Heating ao & 2 Cooling COMF Min 0 Closed 0 (Heating) W htg W clg t R [ C] Closed Connection, allocation (3-point actuator) AC 24 V External NTC Temperature sensor EHO 3 4 2 5 ao3 ao2 ao U5 U5 2 ai/di di2 di3 ai2 2 9 0 6 7 8 2 3 3-point valve actuator (max. 0.5A / 0VA) 2 3 5 y U5 Supply air VAV controller 2 3 5 y U5 Exhaust air VAV controller www.belimo.com A4- en v. 07.200 Subject to changes 7 / 2
VAV control system for a defined room temperature Input and output allocation Inputs - ai/di Energy Hold Off (EHO) / ext. sensor - di2 Override kitchen - di3 Override bathroom Outputs - ao System output supply air damper - ao2 System output exhaust air damper - ao3 heating output 3-point Override functions If more than one override function is switched on at the same time, then the one with the highest priority will be activated. Priority : Priority 2: Priority 3: Priority 4: Room protection (Frost) This function is activated when the room temperature falls below 4 C (protective function). (di2) In order to minimise the pressure differences within the rooms, the ventilation is, for example, overridden by means of the kitchen hood fan or the chimney extraction system. Bath (di3) To move moist or polluted air out of the residential area, the ventilation can, for example, be overridden by means of the light switch in the bathroom or a humidistat. Energy Hold Off (di) The ventilation system is closed completely in order to avoid unnecessary energy consumption during prolonged absences. In order to ensure that the residential area does not cool down too far, the heating valve is not closed but instead the setpoint is reduced by 2 K. Forced ventilation during Energy Hold Off For reasons of air hygiene, the ventilation will be switched on 3 times each day for 30 minutes during Energy Hold Off. The starting times are calculated by the and cannot be modified. Maximum temperature monitoring during Energy Hold Off The room temperature can be monitored to a maximum value of 28 C as an additional protective function. This function must be enabled by setting the DIP switch 5 = ON. (see page 9) Functions P: Room protection P2: P3: P4: EHO P4: EHO P4: EHO Components t R <4 C CLOSED Hygiene t R >28 C Supply air (ao) 00% = max 00% = max 00% = max CLOSED 00% = max 00% = max Exhaust air (ao2) Heating valve (ao3) 00% = max 0% = min 00% = max CLOSED 00% = max 00% = max OPEN (00%) Control mode Control mode Lowered operation Lowered operation CLOSED List of materials Room controller, AC 24 V P (with hidden setpoint adjustment) Supply air VAV, AC 24 V / 2... 0 V LMV-D2-MP NMV-D2-MP Exhaust air VAV, AC 24 V / 2... 0 V LMV-D2-MP NMV-D2-MP Heating valve, AC 24 V / 3-point R..K + TRD24 R.. + TR24 R.. + LR24A Heating valve, AC 24 V / 2-point On site 8 / 2 A4- en v. 07.200 Subject to changes www.belimo.com
VAV control system for a defined room temperature Configuration, settings (3-point actuator) DIP Default settings ON OFF 2 3 4 5 6 P-Band normal P-Band wide 2 Control strategy air volume Control strategy room temperature 3 Control sequence for air cooling Control sequence for air heating 4 Reset MAX COMF Off 5 Max. temp. monitoring Off 6 Definition of heating output (ao3) 2-point actuator Reset MAX COMF h Max. temp. monitoring On Definition of heating output (ao3) 3-point actuator : Operation DIP Operating mode Setpoint COMF COMF - MIN - MAX Rotary button on the front P COMF - MIN - MAX Rotary button under the front Connection, allocation (2-point actuator) AC 24 V External NTC Temperature sensor EHO 3 4 2 5 ao3 ao2 ao U5 U5 2 ai/di di2 di3 ai2 2 9 0 6 7 8 2 Thermal valve actuator (max. 0.5A / 0VA) 2 3 5 y U5 Supply air VAV controller 2 3 5 y U5 Exhaust air VAV controller Configuration, settings (2-point actuator) DIP Default settings P-Band normal P-Band wide ON OFF 2 3 4 5 6 2 Control strategy air volume Control strategy room temperature 3 Control sequence for air cooling Control sequence for air heating 4 Reset MAX COMF Off 5 Max. temp. monitoring Off 6 Definition of heating output (ao3) 2-point actuator Reset MAX COMF h Max. temp. monitoring On Definition of heating output (ao3) 3-point actuator : www.belimo.com A4- en v. 07.200 Subject to changes 9 / 2
+ + Complete solution with VAV control system and Fan Optimiser Description, function The system is operated by the Fan Optimiser on the basis of the current demand signals with optimum damper positions. The aim is to keep pressure loss from the VAV units as low as possible and thereby reduce operating costs in the long term by lowering the fan output and the noise levels of the flow. The damper position of the individual VAV units is transmitted to the Fan Optimiser via the MP-Bus. These values make up the control variables for regulating the frequency convertercontrolled fan. Thanks to this Belimo MP-Bus based technology, energy savings of up to 50% can be achieved for the fans. The controlled residential ventilation is operated by means of temperature regulation and with VAV controllers, the same as in the preceding example. Principle diagram Supply air system MP MP Exhaust air system Notes The room controller is connected directly to the VAV controllers and directs the volume flow in the sector CLOSED, min... max FU Frequency converter FU Frequency converter MP8 MP8 Connection, allocation Supply air system Frequency converter Supply AC 24V 0...0 V 2 6 MP 2 3 5 VAV-Compact MP... MP8 38 37 36 RJ 35 34 + + MP Actuators 33 - - MP MP controller 30 FC 29 OUT A Optimiser Exhaust air system Supply AC 24V Frequency converter 0...0 V MP MP-Bus 2 3 5 VAV-Compact MP... MP8 38 37 36 RJ 35 34 + + MP Actuators 33 - - MP MP controller 30 FC 29 OUT A Optimiser 0 / 2 A4- en v. 07.200 Subject to changes www.belimo.com
Complete solution with VAV control system and Fan Optimiser List of materials Room controller, AC 24 V P (with hidden setpoint adjustment) Supply air VAV, AC 24 V / 2... 0 V LMV-D2-MP NMV-D2-MP Exhaust air VAV, AC 24 V / 2... 0 V LMV-D2-MP NMV-D2-MP Heating valve, AC 24 V / 3-point R..K + TRD24 R.. + TR24 R.. + LR24A Supply air System Fan Optimiser Exhaust air System Fan Optimiser Configuration, adjustment setting Fan Optimiser supply air Fan Optimiser exhaust air Notes Several Fan Optimisers can be switched together by means of a cascading function in cases of systems that have more than 8 VAV controllers. Setpoint adjustment AiMP 2... 0 V Setpoint adjustment AiMP 2... 0 V See System Information Belimo Fan Optimiser VAV-Compact Mode 2... 0 V VAV-Compact Mode 2... 0 V www.belimo.com A4- en v. 07.200 Subject to changes / 2
All inclusive. 5 years Guarantee Worldwide present Complete assortment from a single source Examined Quality Short delivery time Comprehensive support Headquarters Subsidiaries, Representatives and Agencies BELIMO Holding AG Brunnenbachstrasse CH-8340 Hinwil Tel. +4 (0)43 843 6 Fax +4 (0)43 843 62 68 info@belimo.ch www.belimo.com Agentina Australia Bahrain Belgium Bosnia-Herzegovina Brazil Bulgaria Canada Chile Croatia Cyprus Czech Republic Denmark Egypt Estonia Finland France Great Britain Germany Greece Hong Kong Hungary Iceland India Indonesia Ireland Israel Italy Japan Jordan Kuwait Latvia Lebanon Liechtenstein Lithuania Luxembourg Malaysia Mexico Morocco Netherlands New Zealand Norway Oman Pakistan People s Republic of China Philippines Poland Portugal Qatar Republic of Korea (South Korea) Rumania Russia Saudi Arabia Singapore Slovakia Slovenia South Africa Spain Sweden Switzerland Taiwan Turkey Ukraine United Arab Emirates United States of America Belimo worldwide: www.belimo.com