HRV 3843 Classic Controller Instruction Manual

: June 9, 2024
: HRV

Table of Contents

GET TO KNOW YOUR CONTROLLER
QUICK GUIDE
EXTRA FUNCTIONALITY
FAQ
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

HRV 3843 Classic Controller Instruction Manual

GET TO KNOW YOUR CONTROLLER

On/Off button
Turns the system off. Press button once to turn off and once again to turn back on.
Locking icon
When the keypad locking function is engaged, the lock symbol will show (Press and hold the power button to turn on and again to release the lock).
Heating icon
When the system is trying to heat the house to set temperature, this symbol will show. The arrows and house temperature numbers will also indicate this state with the colourred.
Ventilation icon
This symbol will show when the roof space temperature is inadequate to heat your house to the ideal temperature and the system has reduced fan speeds to very low levels to ventilate the house. This is needed to make sure air is still moving through the house and condensation and moisture is controlled. All numbers and arrows will be green at this point.
Ventilation setting
This shows the level of ventilation for your home. Levels range from 1- 6 (1 being less air and 6 being more air). To set this level accurately in winter, start at 6 and lower the setting until condensation appears, then raise up one level again
Heat Exchange symbol
When this symbol is active the system is recovering energy from the house.
Fan Speed icon
Shows the speed at which the fan blows air into your house.
Ideal temperature
Desired temperature you would like to reach inside your house.
Note: Your system will try to achieve this temperature with the heating or cooling that is available in the roof space.
Up and Down arrow buttons
Used to adjust the ideal (desired) temperature for the house.
Menu button
Gives access to the sub menus.
Cooling icon
When the system is trying to cool the house to ideal temperature, this symbol will show. The arrows and house temperature numbers will also indicate this state with the colour blue.
Filter Replacement icon
This icon indicates your filter needs to be changed. We recommend you change your filter every 2 years.
House arrows
Arrows indicate the direction of air flow into, out of, or around the house. Colour indicates if warm (red), cool (blue) or ventilating at very low level fan speeds (green).
Roof temperature
Current temperature inside your roof cavity.
Room temperature Current temperature inside your house.
Heat Transfer / HRV+ (HS) arrow
This shows when the Heat Exchanger or Heat Transfer system is on and actively moving air from front to back of house.
Summer Kit
Accessories add-on product which brings cool air in summer directly from outside (when useful) by passing the roof. When activated, this symbol will show on the keypad.
Burnt Toast Use for:
- Condensation – clears any extra condensation that may have been trapped behind closed curtains etc, with an extra boost of air into the house.
- Summer time – heat dump which purges cavity air in the early evening, thereby reducing the temperature of the house and roof cavity earlier.
- Clearing odours and smells.

QUICK GUIDE

GETTING STARTED

On/Off button
Press button once to turn off and once again to turn back on.

IDEAL TEMP button
Gives system guidance to required tem peraturez

Adjusts desired temperature up or down

Lock keypad
Hold down for 3 seconds.

Menu button
Allows access to sub menus and extra functionality.

Burnt Toast mode
Overrides system, puts fan on 100% speed, pumping more air into the house for one hour.

If you would like to go up verticallythough the menu structure at any point in time press the menu button at the top of each screen.

Previous Next
Use the previous and next buttons at the ? bottom of each menu page to navigate through the sub menus horizontally. If you would like to go up vertically through the menu structure at any point in time press the menu button at the top of each screen.

If at any time you would like to return to the front main screen press this icon.

If you require further help on a specific feature press the help button at the bottom right of each page.

EXTRA FUNCTIONALITY

SUB MENUS
Press the menu button on the front screen to enter the sub menus.

Further options are available in these sub menus

Menu Options

Burnt Toast – these are advanced options for operating Burnt Toast Mode.
Quick Options – this allows access to three main options – Energy saver mode, turning on / off the Heat Transfer unit and Summer Kit.
Night Mode – holds set temperature at 18 degrees for 4 hours, cooling the house when the roof cavity temperature is lower than the house interior. After 4 hours it returns the temperature back to its original setting.
Ventilation Level – allows ventilation setting adjustment. At different times of the year, more or less air is needed to clear condensation in your house. Your system uses these levels when roof cavity temperature is too cool to heat, but the house still needs air to get rid of condensation. Higher levels will bring more cold air into a house. A balance is needed between condensation clearing and reducing the amount of cold air into the house, dependant on each house. Adjust to suit. Spring, summer, autumn: Lower ventilation levels (1 – 3). Winter: Higher ventilation levels (3 – 6).
Clock settings – allows clock adjustment.
Display settings – adjust minor screen modifications such as brightness and contrast.
Advanced – allows access to advanced user functions and information – see below for further details.
About your HRV – display information about your HRV system model.

FAQ

Where can I get more information on my system?

Our customer service team are more than happy to help – give them a call on 0800 HRV 123 (0800 478 123). If you would like information on any of our additional products, please refer to our website.

I’ve had my HRV system for a while – why do I have a black ring
around my outlet vent?

In some houses the air passing out of ceiling outlets will cause a static
charge to build up. This can cause household dust inside the room to become attracted to the charge. Simply wipe away the dust ring with a dry cloth, then open the diffuser plate of the vent a little further to help stop this from recurring. If this persists call us to arrange a visit from one of our customer service team.

My ‘Replace filter’ light is on, what does this mean?

This icon provides an approximate timeline for your system’s service and
filter change. We recommend that filters are replaced with a new genuine HRV filter every two years to ensure the performance of your HRV system isn’t compromised and you continue to get the best from your system.

What do the ventilation levels on my keypad mean?

At different times of the year more or less air is needed to clear condensation in your house. Higher levels will bring more cold air into a house. A balance between condensation clearing and reducing the amount of cold air allowed into a house is needed dependant on each house. Adjust to suit: spring, summer and autumn: lower ventilation levels(1 – 3). Winter: higher ventilation levels (3 – 6).

My HRV is working great, but I still get condensation
occasionally on some windows – why is this?

Even though your home is now dry, cold or damp weather conditions may still lead to some misty windows – certainly far less than what you would have had without your HRV. No system can guarantee zero condensation but rest assured your HRV is getting you as close as possible.

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