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Home Ventilation 

System 

 

Weiss (NZ) Limited 

Installation and 

Operation Manual 

(FV802) 

 

 

PRIOR TO INSTALLATION 

 

Thank you for purchasing this quality Home Ventilation product by Weiss (NZ) Limited. 
With your Weiss HVS™ correctly installed you can be assured of many years of trouble free operation. 

 

PLEASE READ ALL INSTRUCTIONS CAREFULLY BEFORE COMMENCING INSTALLATION. 

 

Note:  Pictures and diagrams on packaging are designed only to be used as a concept.  All installation details should be carried out as per the 
instructions herein. 

 

SAFETY NOTE 

 

Electrical Note:  Weiss (NZ) Limited recommends that the mains electrical installation be completed by a registered electrical contractor. 
Please ensure the electrical installation of this product complies with local wiring regulations. 

 

SYSTEM EFFICIENCY 

 

The main points affecting system efficiency are: 

 

Internal doors should be left open to allow air flow 

 

No tight bends or kinks in the ducting to prevent flow restrictions 

 

Good air flow out of the home (existing externally ducted appliances will assist with this) 

 

PLANNING YOUR INSTALLATION 

 

Included with this system: 

 

 

FV802 
1 x main fan unit (with suspension chain) 
2 x filter bags 
3 x 3 metre lengths of insulated ducting 
2 x outlet vents 
1 x electronic control pad 
1 x plug in connection cable for control pad (5 metres) 
1 x wall mounting flush box 
1 x 200mm junction 

 

The first steps to installing your 

MAIN FAN UNIT

 are dependent on 3 main points: 

 

The placement of the outlet vents (Step 1) 

 

The layout of the insulated ducting (Step 3) 

 

The installation of the control pad connection cable (Step 7) 

 

Step 1:  PLACEMENT OF OUTLET VENTS 

 

The outlet vents should be placed as far apart as the ducting will allow (i.e. 5 metres), with one situated in the main living area and the other in the 
hallway by the bedrooms, or in the stairwell if the house is 2 stories.  When placing outlets consideration should be given to obstacles (e.g. joists 
etc) in the ceiling. 

 

It is not necessary to put an outlet in the centre of a room.   

 

Do not install outlet vents for this product into the Kitchen, Bathroom or other areas of high moisture content. 
The outlet vents should be installed at least one metre away from smoke alarms or motion detection units. 
The outlet vents need to be opened at least 25mm. 

 

Step 2:  INSTALLATION OF OUTLET VENTS 

 

Use the cutting template on the bottom of the product packaging to mark out your ceiling for the outlet vent. 

 

 

1)  Use a saw to cut out the 
pencil drawn lines.  Before you 
cut be sure to check above the 
unit for a minimum clearance 
space of 350mm, and the 
location of the ceiling joists.  The 
fascia mounting back must fit 
freely in the hole. 

 

2)  Unscrew the 3 retention 
screws until the gap between the 
toggles and the lip of the unit is 
greater than the thickness of the 
ceiling material.  Fold toggles 
inwards and insert the unit into 
the hole. 

 

 

 

 

 

3)  Turn the retention screws 
clockwise.  This will turn the 
toggles outwards.  Tightening 
the retention screws will allow 
the toggles to grip the ceiling 
material. 
Fit the fascia ring on. 

 

4)  Finally, attach the ducting 
tube to the rear and*, secure 
with provided ducting tape, 
repeat step for outlet vents.  
Support ducting to prevent it 
collapsing and restricting the 
flow. 

© Weiss (NZ) Limited 2005

 

Weiss (NZ) Limited reserves the right to alter designs and specifications without notice.

 

R02:1110708

 

 

INSHVS 

Summary of Contents for FV802

Page 1: ...ion cable Step 7 Step 1 PLACEMENT OF OUTLET VENTS The outlet vents should be placed as far apart as the ducting will allow i e 5 metres with one situated in the main living area and the other in the hallway by the bedrooms or in the stairwell if the house is 2 stories When placing outlets consideration should be given to obstacles e g joists etc in the ceiling It is not necessary to put an outlet ...

Page 2: ...etc as possible and NOT coiled up Step 8 Optional DUCT TEMPERING UNIT A separate Duct tempering unit FH800 can be purchased to work in conjunction with your Weiss Home Ventilation System The duct warming unit is used to warm incoming air to your home on cool winter nights This unit contains a 1 000 watt element and is controlled electronically from your Home Ventilation System the heater temperatu...

Page 3: ... On or Off PROGRAM BUTTON This function is only accessible by a qualified technician WINTER BUTTON The winter button will manually switch the duct tempering unit FH800 On Off if an optional duct tempering unit has been fitted to your system With the Winter button set to On the duct tempering unit is controlled by a microprocessor located in the main unit This button will operate if a duct temperin...

Page 4: ...cessary to allow some air to escape from the downstairs area to the outside SUITABILITY Weiss HVS has been designed to fit into your roof space ceiling cavity This unit is NOT designed to be installed outside of your home Weiss HVS must not be mounted in areas subject to direct splashing Refer to New Zealand standard NZECP2 1988 Section 4 6 and Australian Standard AS3000 1991 Section 6 2 ROOF SPAC...

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