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Table of Contents
Related Manuals for Dantherm HAC 1
Summary of Contents for Dantherm HAC 1
- Page 1 SERVICE MANUAL ACCESSORY CONTROLLER (HAC) Rev. 1.5 • 2019-W27-1...
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Page 2: Introduction
Introduction: Overview Introduction Overview Abbreviations The following abbreviations and illustrations are used in the following sections. Term Explanation Home-ventilation Accessory Controller module Universal serial bus - connect to computers Geothermal brine based ground heat collector Electrical Pre-heater contact set that normally open, when not active contact set normally closed, when not active The following illustrations are used: Illustrations used... -
Page 3: Table Of Contents
Introduction: Overview Manual Part number of this service manual is 086442. The manual covers installing and setting any factory supplied accessory to the Accessory Controller (HAC). Target group The target group for this service manual are the technicians who install and setup the HAC. Copying of this service manual, or part of it, is forbidden without prior written permission. -
Page 4: Product Description
It is able to control a wide variety of external accessories. This section describes the overall product, and its functionality. This manual covers two main versions. HAC versions Model Description Fitted with Plug HAC 1 Accessory controller with: • 3 m cable • daisy chain option for more MODBUS items •... - Page 5 Fire- smokedetector Hygrostat Operation Standby CO2-demand sensor(0–10 V Fan speed control input) Electrical preheater HAC 1 version only MODBUS HAC main PCB After heat Water/electric 24 V DC (if running damper) GTC (Geothermal pre heat/cool) 24 V DC Damper 1...
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Page 6: Technical Data
Product description: Technical data Technical data Specification The HAC has the following technical data Specification Data Power Supply DC 12V±5% Display Different colour of LED: Green = Orange = Active Red= Fault Temperature range, operation -20 to +50 °C Temperature range, storage -40 to +70 °C Humidity RH max 95%, non condensing... -
Page 7: Connection And Setup
Product description: Connection and setup Connection and setup Screw terminal plug The HAC version with green screw terminal plugs factory fitted, can be used for a wide variety version of home ventilation systems. The HAC will be powered over MODBUS from the ventilation unit. Follow this step by step to connect HAC to unit: Step Action... -
Page 8: Connecting External Accessories
Connecting external accessories: Connection and setup Connecting external accessories Duct mounted accessories Introduction Important : when implementing coolers or heaters in ducts, please follow the correct order. Placement In order for the software in the HAC as well as the ventilation unit to work correctly, its man- datory to follow the below shown placement order, if more heaters/coolers are mounted in the same system. -
Page 9: Electrical Preheater
Connecting external accessories: Electrical preheater Input Alarm Electrical preheater IMPORTANT IMPORTANT: only versions with 6 pins screw terminal plugs can control pre-heaters. Introduction Electrical preheater is typically used to preheat the outside air in cold geographic areas in order to keep the ventilation unit in operation all year for the pleasure of the occupants and the home Connect cables according schematic, to connect the 0-10V DC controlled pre-heater. - Page 10 Connecting external accessories: Electrical preheater Check functionality When the pre-heater is switched on, a heat symbol will show in the T1 air path Fig. 5 The preheater will switch on/off automatically, when needed. Settings The preheater setpoint can be adjusted between 0° and -10°C, or be disabled. Step Action Press the RIGHT button for 10 sec., until the installer menu is activated (the icon...
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Page 11: Afterheater
Connecting external accessories: Afterheater Input Alarm Afterheater Introduction The HAC can control both an electrical and a water based afterheater. The heater will increase the supply temperature for comfort, and will add additional heating to the house. Select ap- propriate sensor according “Compatibility chart” on page 4 Connection Connect cables according schematic, to connect a 0-10V DC controlled after heater. - Page 12 Connecting external accessories: Afterheater Connect cables according schematic, to connect a water based after heater kit. Aftercooler Afterheater Pre-heat/cool 230V 0-10V Blue Common Black TGA-130 >500 mm Fig. 7 Check functionality When the after heater is switched on, a heat symbol will be shown in the T2 air path Fig.
- Page 13 Connecting external accessories: Afterheater Option Setting Afterheating If afterheating is only required to prevent supply of cold air or draught inconvenience, the T2 supply air temperature can be used as setpoint for comfort supply air and regulation temperature. (Factory setting +18°C) Afterheating If afterheating is used as primary heat source for the whole house, T3 for heating of...
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Page 14: Geothermal Collector Kit
Connecting external accessories: Geothermal collector kit Input Alarm Geothermal collector kit Introduction GTC (geothermal collector), is based on geothermal heat or any other source that can provide constant water temperature between 0 °C. to +8°C. If GTC is connected, it will be permanently set to pre-heat on a fixed value, determined by the unit software. -
Page 15: Damper Actuators
Connecting external accessories: Damper actuators Damper actuators Introduction The HAC controller is prepared for operation of 24V DC damper motors. The system can con- trol both spring return (e.g. Belimo TF24) damper motors and direction controlled (e.g. Belimo LM 24) damper motors. IMPORTANT: In both cases, additional DC power for the damper motors, must be delivered by an external 24 VDC power supply. - Page 16 Connecting external accessories: Damper actuators Connect a SPRING Follow the below schematic to connect one or more spring return damper motor. This type RETURN MOTOR will open if powered, and closed again when power is disconnected. (2 wires) The output can handle a maximum of 300 mA current, and is over current protected with a self-resetting fuse.
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Page 17: Alternating Inputs
Connecting external accessories: Alternating inputs Alternating inputs Fire thermostat In case fire protection system is desired it is possible to connect fire thermostat(s) to the system on terminal J2. It can be recommended in combination with damper solutions. (see section damper control) The Fire thermostat is fitted with a jumper wire from factory. - Page 18 Connecting external accessories: Alternating inputs Elec. PH Filter Alarm Fail Alarm T1GTC 0 - 10V Hygro- stat Open Standby TFAH Switch 0 - 10V +16V Open 0 - 10V T2AH Fig. 14 +12V Status T2AC If an external on/off humidistat is connected to the system the ventilation unit will speed up Humidistat to fans speed 3 whenever the RH% of the external humidistat setpoint is exceeded.
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Page 19: Co2 Sensor Analog Input
Connecting external accessories: CO2 sensor analog input CO2 sensor analog input Elec. PH Filter 24VDC Alarm CO2 sensor If a CO2-sensor is connected and the unit is set to AUTO mode the airflow is controlled by the Fail CO2-concentration in the room where the CO2-sensor is placed. Alarm T1GTC Fire... - Page 20 Connecting external accessories: CO2 sensor analog input CO2 level display When any external CO2 is detected, the cloud and corresponding digit will be shown in the display of the remote displays Fig. 19...
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Page 21: Alarms
Connecting external accessories: Alarms Alarms Alarm signalling A general operation alarm as well as a Filter alarm output, can be connected to terminal J7. The output is dry contacts (relay) max. 24VDC, 3 Amp. Normally open (NO). In case of power OFF both general and filter alarm is closed Elec. -
Page 22: Appendix
Appendix: Alarms Appendix Overall schematic This shows all connections in block schematics Power In Input Damper 1 Damper 2 ModBus... - Page 24 Dantherm can accept no responsibility for possible errors and changes (en) Der tages forbehold for trykfejl og ændringer (da) Irrtümer und Änderungen vorbehalten (de) Dantherm n’assume aucune responsabilité pour erreurs et modifications éventuelles (fr)