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INSTALLATION AND COMMISSIONING
INSTRUCTIONS
AVHR400 HEAT RECOVERY UNIT
Switch off mains supply before making any electrical connections.
Installation must be supervised by a qualified electrician.
This appliance can be used by children aged from 8 years and above and persons with reduced
physical, sensory and mental capabilities or lack of experience and knowledge if they have
been given supervision or instruction concerning the use of the appliance in a safe way and
understand the hazards involved.
Children shall not play with the appliance.
Cleaning and user maintenance shall not be made by children
without supervision.
Precautions must be taken to avoid the back-flow of gases into the room from the open flue of
gas or other open-fire appliances when mounted in outside windows or walls.
Fan must be disconnected from electrical power before any maintenance is carried out.
Please leave these instructions with the product.
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Related Manuals for Vent-Axia AVHR400
Summary of Contents for Vent-Axia AVHR400
- Page 1 INSTALLATION AND COMMISSIONING INSTRUCTIONS AVHR400 HEAT RECOVERY UNIT Switch off mains supply before making any electrical connections. Installation must be supervised by a qualified electrician. This appliance can be used by children aged from 8 years and above and persons with reduced...
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Page 2: Important Safety Information
IMPORTANT SAFETY INFORMATION PLEASE READ THESE INSTRUCTIONS CAREFULLY BEFORE COMMENCING INSTALLATION 1. Do not install this product in areas where the following may be present or occur: • Excessive oil or a grease laden atmosphere. • Corrosive or flammable gases, liquids or vapours. •... -
Page 3: Table Of Contents
Figure 1: AVHR400 (Front of Unit as supplied) A range of sensors is available that can be used to switch AVHR400 from normal to boost speed and they are: • Ambient Response Humidity • Normal Boost Switch... -
Page 4: Technical Data
TECHNICAL DATA Performance Airflow Maximum FID, 500 m Normal factory set at minimum Boost factory set at minimum (For commissioning graphs see page 6) Sound levels (@ 3 m) 24 dB(A) (normal), 34 dB(A) (boost) Power AC Voltage Input 220-240 V AC (single phase) AC Frequency Input 50 Hz nominal Rated Power... - Page 5 Figure 2 Product Dimensions...
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Page 6: Installation
When taking delivery of the unit, check the items delivered against the enclosed delivery note. Inspect the unit for damage in transit. If in doubt, contact Customer Services. Each box contains a AVHR400 MVHR unit and an accessory pack containing wall brackets, condensate drain link pipes, worm-drive clips, fixings and product documentation. - Page 7 Condensate Discharge - Vertical Installation Note The 22 mm diameter condensate pipe is suitable for standard 22 mm plastic push-fit fittings and can be connected verti- cally underneath the unit or horizontally at the rear. To install the vertical discharge condensate: 1.
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Page 8: Condensation Discharge - Horizontal Installation
2. Remove the Black Cap from end of condensate stub at the front of the unit. 3. On the AVHR400 drill a diameter 32mm hole using the indent provided in the moulding as a guide. 4. The hole is a clearance hole for a diameter 22 mm pipe and so may vary a little from this guidance. -
Page 9: Spigot Insulation
Note: AVHR400 units have spigots suitable for either diameter 150 mm ducting (UK model) or for diameter 180 mm ducting (rest of EU model). The diameter 180 mm spigots come complete with self adhesive foam adaptors to enable it to be used with either diameter 180 mm ducting or diameter 200 mm ducting. -
Page 10: Wall Mounting
Wall Mounting 1. Refit the front and rear covers if they have been removed. 2. Ensure five off wall bushes are fitted to the rear cover, three 3. along the top row of screws and two along the middle row. 4. -
Page 11: Attaching Ducting
Attaching the ducting 1. Always use a short piece of flexible duct 100-150 mm long, extended to its full length when connecting to ductwork. 2. Securely connect this ducting to the spigots using worm- drive clips or cable ties. 3. Insulate any ducting passing through an unheated space to prevent any heat losses and surface condensation. - Page 12 Connecting the Power Supply WARNING 1. MAINS SUPPLY VOLTAGES (220-240 V AC) ARE PRESENT IN THIS EQUIPMENT WHICH MAY CAUSE DEATH OR SERIOUS INJURY BY ELECTRIC SHOCK. ONLY A QUALIFIED ELECTRICIAN OR INSTALLER SHOULD CONNECT THE POWER SUPPLY TO THIS UNIT. 2.
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Page 13: Overview
Overview The instructions in this section are intended to provide configuration and operation information for setting up the equipment. Follow good practice when commissioning the unit. Ensure that the system is installed according to the system designers intent incorporating any acoustic ducting, that all joints are air tight, ducting is well supported, bends are avoided close to vents, and that the vent valves are fully open at the start of the commissioning process. -
Page 14: Commissioning Control
Estimate the setting from the performance graph on page 6, measure the flow from the extract and supply grilles in the usual way. Adjust the potentiometers to suit. Figure 3: AVHR400 Controls Summer Mode The unit is equipped with a “Summer Mode” for use when the indoor temperature is higher than desired and the outdoor temperature is lower than the indoor temperature. -
Page 15: Maintenance
Maintenance Heat recovery units require regular maintenance. The AVHR400 has been designed to facilitate access to enable maintenance to be carried out easily. WARNING 1. MAINS SUPPLY VOLTAGES (220-240 V AC) ARE PRESENT IN THIS EQUIPMENT WHICH MAY CAUSE DEATH OR SERIOUS INJURY BY ELECTRIC SHOCK. ONLY A QUALIFIED ELECTRICIAN OR INSTALLER SHOULD CONNECT THE POWER SUPPLY TO THIS UNIT. -
Page 16: Spares
Spares AVHR400F - Replacement G Filters for AVHR400 MVHR Unit Product Fiche For residential Ventilation Units (Complying Commission Delegated Regulation (EU) No 1254/2014) Telephone: 0117 923 5375 Unit 12, Access 18, Bristol BS11 8HT www.addvent.co.uk ISSUE 2/1019...