NuAire DRI-ECO-HEAT-HC Installation And Maintenance Download Page 2

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nuaire.co.uk 

029 2085 8400

15. 11. 16. Leaflet Number  671757

DRI-ECO-HEAT-HC 

- Installation and Maintenance

6.0 FITTING THE FILTERS

The filter has a push fit rim to attach itself to the main body of the unit. Offer 
the filters up to the unit and apply a small amount of pressure to the filters rim 
(by hand). The filter will clip into place.
The unit can then be attached to the roof via the cord provided (or fixed to the 
floor joists using the optional anti vibration mounting kit).

7.2 AV Mounting (Optional)

The AV kit contains all the parts necessary to complete a joist mounted 
installation. If AV mounting is required, the kit can be purchased direct from 
Nuaire using the following code number: 

771393.

Lower the unit with battens (battens are not supplied by Nuaire) attached onto 
the joists. Mark and drill the 12mm dia. clearance holes required in the ends of 
the battens.

Place anti-vibration mounts above and below each batten fixing point and, using 
the 4 large screws and special washers, fix the unit to the joists.  

Do not overtighten the fixings. The distance from the top washer to the joist 
when installed must not be less than 50mm.

7.0 DRI-ECO-HEAT-HC INSTALLATION

7.1 Joist Hung (Standard Mounting) 

The standard method of installation is to suspend from a convenient roof beam 
via the cord supplied (Note: unit weight = 3.5 kg).The method of locating the 
cord to the roof timber is the responsibility of the installer.
The flexible duct (maximum length 2m) is connected to the fan unit by inserting 
the duct over the fan outlet and held in place using the supplied cable tie. This 
method is repeated when connecting the duct to the ceiling vent. Note: Ensure 
all duct joints are airtight.

Please note

The flexible ducting should NOT be installed in a compressive 

state, as this will negatively impact on the performance of the unit.

Fan unit 

interconnecting 

loom

Mains Power

Ceiling 

Vent 

Control

Loom

5.0 FITTING THE HEATER

The heater unit must be connected to the ceiling vent and fan unit using the 3 

looms that protrude from the heater module. Connect the ceiling vent control 

loom to the circuit board on the ceiling vent and insert the heater module into 

the ceiling vent. Connect the interconnect loom into the rear of the fan unit. 

Connect the mains power loom into the power outlet on the underside of the 

fan unit.

The flexible duct (maximum length 2m) is connected to the base unit by 

inserting the duct over the outlet duct and held in place using the supplied cable 

tie. 

Finally when installing the duct to the heater unit insert the duct over the back 

of the heater, over the protruding screw heads (3mm from the face of the duct) 

and fasten the cable tie below the screws. This ensures that the duct will be held 

on securely, check all duct joints are air tight. 

Disconnection from mains must be incorporated within the fixed wiring and shall 
have a maximum contact seperation of 3mm in accordance with latest edition 
of the wiring regulations.

8.0 ELECTRICAL CONNECTION

 

Please note: the electrical connection of the unit must be be carried out by a 
qualified electrician.

Electrical details:-

Voltage: 

230V 1ph 50Hz

Consumption:

 1.6W(min) 15.3W(max) Up to 400W with heater at full load.

Fuse size: 

3 Amp

The fan unit is also supplied with a fused spur. The three core mains cable from 
the fan unit should be connected to a fixed wiring installation, via the spur, in 
accordance with current IEE wiring regulations.

IMPORTANT

For good EMC engineering practice, the DRI-ECO-HEAT-HC 

power supply output cable and any sensor cables should not be

placed within 50mm of other cables or each other.

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