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3005182-2023-03-10
HCW water heating coil
for VEX w/wo EXact2 control
Product information............................................................... Chapter 1 + 7
Mechanical assembly............................................................ Chapter 2
Electrical installation.............................................................. Chapter 3
Commissioning and operation............................................... Chapter 4 + 6
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
COILS
E X T E R N A L
HEATING / COOLING
Original instructions
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Summary of Contents for Exhausto HCW
- Page 1 3005182-2023-03-10 HCW water heating coil COILS E X T E R N A L HEATING / COOLING for VEX w/wo EXact2 control Product information............... Chapter 1 + 7 Mechanical assembly............Chapter 2 Electrical installation.............. Chapter 3 Commissioning and operation..........Chapter 4 + 6 Original instructions Maintenance................
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Page 2: Table Of Contents
3005182-2023-03-10 1. Product information 1.1. Application.............................. 3 1.1.1. Designations used in these instructions..................3 1.1.2. Designations used in these instructions..................4 1.2. Description.............................. 4 1.2.1. Design.............................4 1.3. Principal dimensions..........................5 2. Mekanisk montage 2.1. Unpacking............................... 8 2.2. Position in relation to VEX........................8 2.2.1. Correct positioning of water heating coil..................8 2.2.2. -
Page 3: Product Information
1. Product information 1.1 Application EXHAUSTO's HCW heating coil is a water heating coil used to increase the temperature of the supply air. The water heating coil can be used for both left and right units. 1.1.1 Designations used in these instructions... -
Page 4: Designations Used In These Instructions
3005182-2023-03-10 1.1.2 Designations used in these instructions Designation Function Standard/accessory Motor valve Standard TE-HCW-SUPPLY Temperature sensor, supply air Standard TE-RPT Temperature sensor on return pipe from water heating coil Standard TE-SPT Temperature sensor on supply pipe to water heating coil... -
Page 5: Principal Dimensions
Product information 3005182-2023-03-10 Pos. Part Function Spigots for connecting water to To connect water to the water heating coil: the system a. Return b. Supply Temperature sensor Measures the temperature in the supply air duct TE-RPT; return water temperature Measures the temperature of the return water from sensor the water heating coil TS-RPT-X;... - Page 6 Product information 3005182-2023-03-10 Type HW315SU0UC DN15(½") 488.5 Ø315 HW315MU0UC DN15(½") 488.5 Ø315 HW315LU0UC DN15(½") Ø315 HW40003U0UC DN15(½") 663.5 309.5 Ø400 6/24...
- Page 7 Product information 3005182-2023-03-10 Rectangular unin- The coils have the following dimensions: sulated coils with- out transition pieces Type HW040X080U DN15(½") HW050X080U DN15(½") HW070X080U DN25(1") HW050X100U DN25(1") 1137 1000 HW060X140U DN25(1") 1545 1400 HW060X140U D DN25(1") 1545 1400 HW060X12003U0UL 52.4 52.4 DN32(1¼") 1357 1200...
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Page 8: Mekanisk Montage
Standard Accessories HCW water heating coil MVM valve MHCW module Temperature sensor, supply air duct (TE-HCW-SUPPLY) Temperature sensor, return water (TE-RPT). Temperature sensor, supply water (TE-SPT). Temperature sensor, frost protection for external piping (TS-RPT-X) Supplied compo- If the coil is for use with a third-party control system, the following components are supplied:... - Page 9 Mekanisk montage 3005182-2023-03-10 The heating coil must always be supported - during fitting as well The fixture for this is not part of the EXHAUS- TO delivery. The heating coil must always be positioned so that the air flows through it horizontally. 9/24...
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Page 10: Positioning The Temperature Sensor (Te-Hce-Supply) In Duct
This is the position for temperature sensor TE-HCE- SUPPLY TE-HCW-SUPPLY 2.2.3 Correct fitting of supply and return water temperature sensor How to mount the temperature sensor correctly on the supply/return to/from the heating coil: Use heat paste to ensure good contact between the pipe and the sensor. -
Page 11: Water Heating Coil
Mekanisk montage 3005182-2023-03-10 2.3 Water heating coil 2.3.1 Principles for connecting the water heating coil Mixing loop The diagrams below are simplified. The dimensioning of valves, pipes, etc. and heating coil connection must always be carried out by authorised fitters in accordance with applicable regulations and legisla- tion. -
Page 12: Bleeding Of Coils
Cirkulationspumpe* I - AB Trykdifferensregulator* Snavssamler* *) not EXHAUSTO delivery (refer to the technical specifications). 2.3.2 Bleeding of coils Bleeding It is the responsibility of the contractor/customer to ensure that the bleeding option is correctly installed and that the building owner is informed of the risk of insufficient bleeding, regardless of whether the coil(s) in question are built into a ventilation system or mounted separately in the duct system. -
Page 13: Mvm Valve
Mekanisk montage 3005182-2023-03-10 Fitting motor valve The valve must not be fitted with the motor facing down Insulate the supply The pipes and heating coil must be insulated according to applicable regulations pipe and heating coil 2.3.3 MVM valve Definition MVM is used as a general term for an engine valve. -
Page 14: Electrical Installation
Electrical installation 3005182-2023-03-10 3. Electrical installation 3.1 Connection diagrams 3.1.1 Connection diagrams (VEX with EXact2 control) The position of the heating coil in relation to the VEX will determine the connection method: If the heating coil is positioned Then See diagram less than 10 m from the VEX the heating coil can be connected directly to the main board (IHCW) - Page 15 MVM valve EXHAUSTO -T1¹) TS-RPT-X (Temperature sensor on external pipeline from water heat- EXHAUSTO ing coil) (accessory) TE-HCW-SUPPLY (temperature sensor, supply air) EXHAUSTO TE-RPT (Temperature sensor on return pipe from water heating coil) EXHAUSTO TE-SPT (Temperature sensor supply water) EXHAUSTO 15/24...
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Page 16: Connection Of Modbus Devices
Control panel 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 17 Electrical installation 3005182-2023-03-10 Modbus, termina- The first and last devices on the bus must be terminated. The PCB contains a jumper JP1, which can tion or daisy chain- be used for termination. Then See diagram no. MHCW is the first or last device it must be terminated by use of on the bus jumper JP1 (jumper nearest termi-...
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Page 18: Commissioning And Operation
Commissioning and operation 3005182-2023-03-10 4. Commissioning and operation Warnings Do not touch the heating coil - risk of burns. Frost protection is only active when the electrical power and heating supplies are connected. During commissioning, ensure that there is no risk of frost-induced leaks in the water heating coil. -
Page 19: Maintenance
Maintenance 3005182-2023-03-10 5. Maintenance 5.1 Maintenance See section "Maintenance" in the product instructions for the VEX unit. 19/24... -
Page 20: Troubleshooting
Troubleshooting 3005182-2023-03-10 6. Troubleshooting 6.1 Troubleshooting Alarms See "Alarms" section in the “EXact Control System, Basic Instructions”. 20/24... -
Page 21: Technical Specifications
Technical specifications 3005182-2023-03-10 7. Technical specifications 7.1 Water heating system Type Weight without fluid [kg] Water content [l] Test pressure [kPa] Max. operating pressure [kPa] HW315SU(X/E/M) 3000 1600 HW315MU(X/E/M) 3000 1600 HW315LU(X/E/M) 3000 1600 HW400U(X/E/M) 15.5 3000 1600 HW04X08U(X/E/M) 3000 1600 HW05X08U(X/E/M) 12.2... -
Page 22: Mvm Motor Valve
Technical specifications 3005182-2023-03-10 MVM motor valve Valve Test pressure Max. differential Permitted temperature of me- The valve will remain open if the [kPa] pressure [kPa] dium [°C] differential pressure [kPa] Kvs 0.25 - 4.0 1600 5 - 110 > 100 Kvs 6.3 1600 5 - 110... - Page 23 3005182-2023-03-10 23/24...
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