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3006639-2023-06-29
HE315
Heating coil – electric with EXact2 control system
Product information............................................................... Chapter 1 + 7
Mechanical assembly............................................................ Chapter 2
Electrical installation.............................................................. Chapter 3
Commissioning and operation............................................... Chapter 4
Maintenance.......................................................................... Chapter 5
EXHAUSTO A/S
Odensevej 76
5550 Langeskov, Denmark
Tel.: +45 65 66 12 34
Fax: +45 65 66 11 10
exhausto@exhausto.dk
www.exhausto.dk
HCE, HE315
COILS
E X T E R N A L
HEATING / COOLING
Original instructions
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Summary of Contents for Exhausto HE315
- Page 1 HCE, HE315 3006639-2023-06-29 HE315 COILS E X T E R N A L HEATING / COOLING Heating coil – electric with EXact2 control system Product information............... Chapter 1 + 7 Mechanical assembly............Chapter 2 Electrical installation.............. Chapter 3 Commissioning and operation..........Chapter 4 Original instructions Maintenance................
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Page 2: Table Of Contents
3006639-2023-06-29 1. Product information 1.1. Symbols, terms and information plate....................3 1.2. Application.............................. 4 1.3. Description.............................. 5 1.3.1. Construction of electric heating coil....................5 1.4. Principal dimensions..........................5 2. Mechanical assembly 2.1. Unpacking............................... 6 2.2. Position in relation to VEX........................6 2.2.1. Left/right position (shown here on VEX240)................... 6 2.2.2. -
Page 3: Product Information
Product information 3006639-2023-06-29 1. Product information 1.1 Symbols, terms and information plate Prohibition symbol Failure to observe instructions marked with a prohibition symbol may result in serious or fatal injury. Danger symbol Failure to observe instructions marked with a danger symbol may result in per- sonal injury and/or damage to the material. -
Page 4: Application
Product information 3006639-2023-06-29 1.2 Application The EXHAUSTO HE 315 is a heating coil and is used to increase the temperature of the supply air. Designations used in these instruc- tions Component designation Function MHCE2 module Control box, located in electric heating coil... -
Page 5: Description
Product information 3006639-2023-06-29 1.3 Description 1.3.1 Construction of electric heating coil General drawing The drawing below shows the construction of the heating coil: Pos. no. Part Function Temperature sensor Measures the temperature in the supply air duct Connection box Box for connecting the electric heating coil to the VEX unit control system and power sup- Isolation switch Isolation switch used for servicing... -
Page 6: Mechanical Assembly
Mechanical assembly 3006639-2023-06-29 2. Mechanical assembly 2.1 Unpacking Delivery The following components are supplied: ● Electric heating coil with integral connection box. 2.2 Position in relation to VEX Warning The electric heating coil must be insulated with non-inflammable insulation mate- rial. -
Page 7: Correct Installation On The Duct System
Mechanical assembly 3006639-2023-06-29 2.2.2 Correct installation on the duct system Position the heating coil on the supply air duct or directly on the VEX unit's supply air spigot. The electric heating coil must always be supported - even during fitting (the fixture for this is not part of the EX- HAUSTO delivery). -
Page 8: Position Of Te-Supply
Mechanical assembly 3006639-2023-06-29 2.2.3 Position of TE-SUPPLY The temperature sensor is posi- tioned here TE-SUPPLY 8/20... -
Page 9: Correct Position Of Electric Heating Coil (Shown Here On Vex330H)
Shown here on VEX330H The electric heating coil must always be supported - even during fitting (the fix- ture for this is not part of the EXHAUSTO delivery). The electric heating coil must always be positioned so that the air flows through it horizontally. -
Page 10: Position Of Temperature Sensor Te-Supply
Mechanical assembly 3006639-2023-06-29 2.2.5 Position of temperature sensor TE-SUPPLY The temperature Example of position on a ceiling VEX and a horizontal VEX: sensor is posi- tioned here 300C 330H TE-SUPPLY TE-SUPPLY 10/20... -
Page 11: Electrical Installation
Electrical installation 3006639-2023-06-29 3. Electrical installation 3.1 Connection diagram Diagram The diagram below illustrates the connection of the supply voltage and the heating coil connection box. 11/20... -
Page 12: Key To Diagram
Connection must be carried out according to the following diagram (see also instructions "Electrical In- stallation Guide for VEX with EXact control" for the VEX unit in question. This shows the method for connecting standard components on the connection box connection diagram. * Not supplied by EXHAUSTO MHCW/MHCE Heat control (water or electric) -
Page 13: Cable (Type, Max. Length And Termination)
Electrical installation 3006639-2023-06-29 3.2.2 Cable (type, max. length and termination) Cable EXHAUSTO recommends the use of 4-core, twisted pair, shielded cable. To limit voltage drop across □ the cable, 0.25 conductors are recommended. For correct connection of shielded cable to Modbus units, refer to the "Electrical Installation Guide"... -
Page 14: Commissioning And Operation
Commissioning and operation 3006639-2023-06-29 4. Commissioning and operation 4.1 Warnings, commissioning 4.1.1 Warnings, overheating Supply airflow must not fall below 486 m /h (135 l/s) when operating with the electric heating coil - this is to avoid overheating. Warnings During commissioning, it may be necessary to work with the control system box- es open. -
Page 15: Communication Monitoring
Commissioning and operation 3006639-2023-06-29 Reset Reset Resetting on the electric heating coil Reset on the HMI panel: ● Use "Menu 4 Alarms" ● For further information, see "Resetting alarms" in "EXact2 Control System, Basic Instructions”. Communication If communication between the MHCE2 and the EXact2 control system fails, the power output is reset monitoring and an alarm is tripped. -
Page 16: Maintenance
Maintenance 3006639-2023-06-29 5. Maintenance 5.1 Maintenance Maintenance See "Maintenance" section in the product instructions for the VEX unit. 16/20... -
Page 17: Troubleshooting
Troubleshooting 3006639-2023-06-29 6. Troubleshooting 6.1 Troubleshooting Troubleshooting See the "Troubleshooting" section" for the relevant VEX unit. 17/20... -
Page 18: Technical Specifications
7.1 Electric heating coil Electric heating coil Electric heat- Total power 4 kW 6 kW 8 kW ing coil HE315 Data Weight 23 kg Power supply for 3 x 400V + N + PE, 50 Hz connection box* Thermal fuse, 70 ℃... -
Page 19: Spare Parts
The production number is stated on the information plate on the VEX unit. Contact your local EXHAUSTO office service department to order spare parts. Visit www.exhausto.com or scan the QR code on the back cover of these instructions to obtain the tel- ephone number.
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