HVR Temperature Controller User manual

Call 0800 HRV 123 for help and support
Night Mode
Night Mode sets the HRV to 18 degrees for 4 hours, after which it will return to its
previous setting automatically. Night Mode is best used in summer before going to
bed in the evening. Once set, your HRV System will use the cool air in the roof space to
bring the room temperature down, and create air flow in the house to help with a
more comfortable night sleep.
To activate press and hold the ‘Down’ arrow button until you see the set temperature as
a flashing ‘18’. This will occur 3 seconds after the flashing ‘--’ is displayed, so don’t release
the button until the flashing ‘18’ is seen. To de-activate, press the ‘Up’ or ‘Down’ arrow
button once.
Filter Gauge
The Filter Gauge is an indicator of how much percentage of use the filter has remaining.
To display the filter gauge press the ‘FUNC’ button twice within a second and then after
another second, press it again. ‘Fil’ will be displayed with a number under it. This number
is a percentage of filter use remaining. Over time the number moves towards zero percent
and the filter needs to be replaced when it gets close to zero. This will also be indicated
by the Replace Filter Light (see below).
Note: For systems with an ATU, you will need to turn the system off first, by pressing the
‘Power’ button.
Replace Filter Light
If the Replace Filter Light is flashing, then it’s time to replace your filter. Doing this
without delay will ensure your HRV System continues to work at its best performance.
Power Failure
During a power failure the unit will retain all settings, including the Set Temperature and
the key pads locked state.
Ventilation Mode – Adjusting the Ventilation Level
This setting determines how much air your HRV will deliver when the temperature inside
your roof cavity is undesirable – for example, on a cold winter night or hot summer day.
For bad condensation problems a higher setting can be selected. A higher setting will
reduce condensation but may also reduce the temperature during cooler times of the year.
To change this setting, first turn the system off by pressing the power button. Next, press
and hold the ‘Down’ arrow button until the display is lit (3 sec) – the display will now show
‘01’ beside the ‘Roof Temp’ and another number beside the ‘House Temp’. Press the ‘Power’
button to change the setting. The setting can be a number from ‘1’ through to ‘6’.
To exit settings mode press the ‘FUNC’ button when the setting has been made. Settings
mode will exit in 2 minutes, if no key is pressed.
ATU control (ATU system) – Optional
The Air Tempering Unit can run in two modes (Air tempering mode or thermostat mode).
Air Temper mode uses a lot less power and only turns on the heater to help reduce
condensation. Thermostat mode turns on the heater whenever the HRV system needs
to heat.
To enable air tempering mode, briefly press the ‘FUNC’ button once. The ATU symbol will be
displayed. To disable the air tempering mode briefly press the ‘FUNC’ button again.
The ATU symbol will go off.
To enable thermostat mode, press and hold the ‘FUNC’ button for 3 seconds, until the ATU
symbol flashes. To disable the thermostat mode, briefly press the ‘FUNC’ button.
The ATU symbol will go off.
Normal Operation
Press the ‘Power’ button if the unit is not already on. Select the desired temperature by using the
‘Up’ and ‘Down’ arrow buttons. This temperature can be set from 14 to 24 degrees Celsius. After
selecting the desired temperature, the HRV system will function automatically all year round.
Turning off the HRV System
In the unlikely event that you want to turn the HRV system off, just press the ‘Power’ button once.
The display will turn off. To ensure your house stays fresh and dry, the HRV will automatically power
on again in 8 hours.
Heating Symbol Displayed (Heating Mode)
If the House Temperature is cooler than the Set Temperature, and the Roof Temperature
is hotter than the House Temperature, then the HRV System will enter Heating Mode and use the
warmer air in the roof space to raise the
temperature of the house.
Cooling Symbol Displayed (Cooling Mode)
If the House Temperature is warmer than the Set
Temperature, and the Roof Temperature is cooler
than the House Temperature, then the HRV
System will enter Cooling Mode and use the
cooler air in the roof space to lower the
temperature of the house.
Ventilation Symbol Displayed
(Ventilation Mode)
If the House Temperature is at the Set
Temperature, or the Roof Temperature cannot be
used to adjust the House Temperature, then the
HRV system enters Ventilation Mode. This mode
will reduce condensation and provide fresh air in
the house.
Fan Speed Indicator
The Fan Speed Indicator consists of 5 segments
which provide a rough indication of the fan
speed. The fan is capable of much finer speed
adjustments than the 5 steps indicated.
Burnt Toast Mode
Burnt Toast Mode forces the HRV to run at full fan speed for 1 hour. To enable Burnt Toast Mode
press and hold the ‘Down’ arrow button for three seconds. Two beeps will be heard and the set
temperature will flash ‘--’. This mode is a boost mode to clear unwanted fumes or to remove
condensation that may have been trapped behind a closed curtain.
After 1 hour the system will return to its previous setting automatically. To de-activate, press the
‘Up’ or ‘Down’ arrow button once.
Locking the Keypad (non ATU System)
To avoid accidental changing of any settings, the keypad can be locked. Press and hold the ‘FUNC’
button until the lock symbol is shown (3 sec). To unlock the keypad press and hold the ‘FUNC’
button until the lock symbol goes out (3 sec).
Air Flow Path
The air flow path has three arrows showing where the air is coming from (roof or outside) and also
if the roof space is being purged. Note, purging roof space and outside air are additional options
available – contact HRV for more information 0800 HRV 123.
How it Works
The display consists of three two digit temperature displays, a fan speed indicator and
symbols to indicate the mode of operation. The top two digit display is the current
roof space temperature and the middle two digit display is the current house
temperature. The temperatures are shown in degrees Celsius. If the temperature
reading is below –9 then the display will show ‘Lo’.
The bottom two digit display is the Set Temperature. This should be adjusted to the
desired temperature that you would like to achieve in your home. This can show from
14 to 24 degrees Celsius, or two flashing dashes when in ‘burnt toast’ mode.
The right side of the display contains the symbols showing the mode of operation.
From top to bottom you have, heating, cooling, ventilation, locked, air tempering,
house with air flow path and fan speed indicator.
Your HRV system creates huge
efficiencies as it dries out your home.
You will find you use less primary
heating ( fireplace, heat pump
or flued gas ) and you won’t need
your dehumidifiers. HRV owners are
saving up to 60% of their energy cost
and reducing their emissions.
Good on you.
“Nice to be comfy while
you’re saving the planet”
Roof temp
Room temp
Set temp
Heating
Cooling
Ventilation
Locked
Outside air
Fan speed
Roof air
Air tempering
Purge
Instruction Manual
Using your HRV

Night Mode
Night Mode sets the HRV to 18 degrees for 4 hours, after which it will return to its
previous setting automatically. Night Mode is best used in summer before going to
bed in the evening. Once set, your HRV System will use the cool air in the roof space to
bring the room temperature down, and create air flow in the house to help with a
more comfortable night sleep.
To activate press and hold the ‘Down’ arrow button until you see the set temperature as
a flashing ‘18’. This will occur 3 seconds after the flashing ‘--’ is displayed, so don’t release
the button until the flashing ‘18’ is seen. To de-activate, press the ‘Up’ or ‘Down’ arrow
button once.
Filter Gauge
The Filter Gauge is an indicator of how much percentage of use the filter has remaining.
To display the filter gauge press the ‘FUNC’ button twice within a second and then after
another second, press it again. ‘Fil’ will be displayed with a number under it. This number
is a percentage of filter use remaining. Over time the number moves towards zero percent
and the filter needs to be replaced when it gets close to zero. This will also be indicated
by the Replace Filter Light (see below).
Note: For systems with an ATU, you will need to turn the system off first, by pressing the
‘Power’ button.
Replace Filter Light
If the Replace Filter Light is flashing, then it’s time to replace your filter. Doing this
without delay will ensure your HRV System continues to work at its best performance.
Power Failure
During a power failure the unit will retain all settings, including the Set Temperature and
the key pads locked state.
Ventilation Mode – Adjusting the Ventilation Level
This setting determines how much air your HRV will deliver when the temperature inside
your roof cavity is undesirable – for example, on a cold winter night or hot summer day.
For bad condensation problems a higher setting can be selected. A higher setting will
reduce condensation but may also reduce the temperature during cooler times of the year.
To change this setting, first turn the system off by pressing the power button. Next, press
and hold the ‘Down’ arrow button until the display is lit (3 sec) – the display will now show
‘01’ beside the ‘Roof Temp’ and another number beside the ‘House Temp’. Press the ‘Power’
button to change the setting. The setting can be a number from ‘1’ through to ‘6’.
To exit settings mode press the ‘FUNC’ button when the setting has been made. Settings
mode will exit in 2 minutes, if no key is pressed.
ATU control (ATU system) – Optional
The Air Tempering Unit can run in two modes (Air tempering mode or thermostat mode).
Air Temper mode uses a lot less power and only turns on the heater to help reduce
condensation. Thermostat mode turns on the heater whenever the HRV system needs
to heat.
To enable air tempering mode, briefly press the ‘FUNC’ button once. The ATU symbol will be
displayed. To disable the air tempering mode briefly press the ‘FUNC’ button again.
The ATU symbol will go off.
To enable thermostat mode, press and hold the ‘FUNC’ button for 3 seconds, until the ATU
symbol flashes. To disable the thermostat mode, briefly press the ‘FUNC’ button.
The ATU symbol will go off.
Normal Operation
Press the ‘Power’ button if the unit is not already on. Select the desired temperature by using the
‘Up’ and ‘Down’ arrow buttons. This temperature can be set from 14 to 24 degrees Celsius. After
selecting the desired temperature, the HRV system will function automatically all year round.
Turning off the HRV System
In the unlikely event that you want to turn the HRV system off, just press the ‘Power’ button once.
The display will turn off. To ensure your house stays fresh and dry, the HRV will automatically power
on again in 8 hours.
Heating Symbol Displayed (Heating Mode)
If the House Temperature is cooler than the Set Temperature, and the Roof Temperature
is hotter than the House Temperature, then the HRV System will enter Heating Mode and use the
warmer air in the roof space to raise the
temperature of the house.
Cooling Symbol Displayed (Cooling Mode)
If the House Temperature is warmer than the Set
Temperature, and the Roof Temperature is cooler
than the House Temperature, then the HRV
System will enter Cooling Mode and use the
cooler air in the roof space to lower the
temperature of the house.
Ventilation Symbol Displayed
(Ventilation Mode)
If the House Temperature is at the Set
Temperature, or the Roof Temperature cannot be
used to adjust the House Temperature, then the
HRV system enters Ventilation Mode. This mode
will reduce condensation and provide fresh air in
the house.
Fan Speed Indicator
The Fan Speed Indicator consists of 5 segments
which provide a rough indication of the fan
speed. The fan is capable of much finer speed
adjustments than the 5 steps indicated.
Burnt Toast Mode
Burnt Toast Mode forces the HRV to run at full fan speed for 1 hour. To enable Burnt Toast Mode
press and hold the ‘Down’ arrow button for three seconds. Two beeps will be heard and the set
temperature will flash ‘--’. This mode is a boost mode to clear unwanted fumes or to remove
condensation that may have been trapped behind a closed curtain.
After 1 hour the system will return to its previous setting automatically. To de-activate, press the
‘Up’ or ‘Down’ arrow button once.
Locking the Keypad (non ATU System)
To avoid accidental changing of any settings, the keypad can be locked. Press and hold the ‘FUNC’
button until the lock symbol is shown (3 sec). To unlock the keypad press and hold the ‘FUNC’
button until the lock symbol goes out (3 sec).
Air Flow Path
The air flow path has three arrows showing where the air is coming from (roof or outside) and also
if the roof space is being purged. Note, purging roof space and outside air are additional options
available – contact HRV for more information 0800 HRV 123.
How it Works
The display consists of three two digit temperature displays, a fan speed indicator and
symbols to indicate the mode of operation. The top two digit display is the current
roof space temperature and the middle two digit display is the current house
temperature. The temperatures are shown in degrees Celsius. If the temperature
reading is below –9 then the display will show ‘Lo’.
The bottom two digit display is the Set Temperature. This should be adjusted to the
desired temperature that you would like to achieve in your home. This can show from
14 to 24 degrees Celsius, or two flashing dashes when in ‘burnt toast’ mode.
The right side of the display contains the symbols showing the mode of operation.
From top to bottom you have, heating, cooling, ventilation, locked, air tempering,
house with air flow path and fan speed indicator.
Your HRV system creates huge
efficiencies as it dries out your home.
You will find you use less primary
heating ( fireplace, heat pump
or flued gas ) and you won’t need
your dehumidifiers. HRV owners are
saving up to 60% of their energy cost
and reducing their emissions.
Good on you.
“Nice to be comfy while
you’re saving the planet”
Roof temp
Room temp
Set temp
Heating
Cooling
Ventilation
Locked
Outside air
Fan speed
Roof air
Air tempering
Purge
Call 0800 HRV 123 for help and support

Call 0800 HRV 123 for help and support Call 0800 HRV 123 for help and support
“Thank you for choosing HRV”
We at HRV pride ourselves on providing superior ventilation systems and superior
service. Our systems have the highest airflow, the smartest control systems, and
the best filtration available to today’s home owner.
I’m excited! But how exactly does my HRV work again?
Your HRV will refresh the air in your home as often as possible and practical, using
warm, dry, purified air extracted from your roof cavity. This will flush out moisture,
odours, dust, pollen and all sorts of other unwanted nasties from your home, whilst
adding extra warmth when available.
Your HRV will constantly strive to achieve the temperature you have requested.
This means that in winter, whenever the roof cavity is warmed by solar energy, the
heating symbol will come on and your HRV will harness this freely heated air and
circulate it through your home. On hot summer nights, the inside of your home retains
heat when windows are closed for insects and for security. The HRV system then draws
in cooler night air to refresh you and provide refreshing, healthy ventilation.
The optional addition of a Summer Kit allows your HRV to draw cool air from the south
side of the house, providing a refreshing cooling effect on hot summer days. This
feature is fully automated. Our optional 1.1 kilowatt Air Tempering Unit ( ATU ) allows
the HRV to run when the roof space is cold, without cooling down your home,
boosting the ability of the system to dry even the dampest and coldest of homes.
Seasonal Suggestions for Ventilation level
Whilst your ventilation level is a personal preference and makes the HRV adaptable to any
home, it is suggested that you lower the ventilation level to 1 during the summer months
and increase it during winter to above 3. Having it above 3 in winter will ensure any
condensation is minimised.
My HRV was installed a couple of days ago, and it seems to be
working, but my windows are still fogging up. What’s wrong?
There’s nothing wrong, your HRV is doing its job perfectly! While you should notice an
improvement the very next day, best results are obtained a few weeks down the track,
after your HRV has had time to dry out walls, flooring, bedding and so on.
It’s working great, but I still get a mist occasionally on some windows
– why is this?
Even though your home is now dry, especially cold or damp weather conditions may still
lead to some misty windows – certainly far less than what you would have had without
the HRV. Having a party or cooking a big meal will also cause a bit of extra moisture, but
your HRV will set to clearing this out over the next day. No system can guarantee zero
condensation, but rest assured your HRV is getting you as close as is possible!
Why does my house feel cooler on winter mornings, and/or warmer
on summer days?
The system’s ventilation setting is too aggressive. In winter, this will help to achieve
maximum condensation control, but having this too high may make your home a little
cooler in the morning. In summer, this same setting may make the home a little warmer
during the day. You can adjust this setting and find a comfortable median using the
instructions on the inside spread of this leaflet.
HRV can be contacted at the following locations:
Auckland Support Office: [phone] Toll free: 0800 HRV 123 (0800 478 123)
Email: [e-mail] or [e-mail]
Things you can do to help are:
•Leave heavy blinds and drapes slightly ajar
•Use burnt toast mode to boost the system in the mornings or early evening
•Select a more appropriate ( more aggressive ) ventilation level
•Make sure the outlets are open wide
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 the outlets across the ceiling will cause a static
charge to build up. This can cause a build up of household dust from inside the room
attracted by the static charge. Simply wipe away the dust ring with a dry cloth, then turn
the diffuser plate of the vent open a little further to help stop this from recurring.
Finally, thanks again for choosing HRV!
We trust that your HRV will give you many years
of fault-free satisfaction.
HRV August 2008 Instruction Booklet R2.qxp:Layout 1 6/8/08 11:45 AM Page 1
“Thank you for choosing HRV”
We at HRV pride ourselves on providing superior ventilation systems and superior
service. Our systems have the highest airflow, the smartest control systems, and
the best filtration available to today’s home owner.
I’m excited! But how exactly does my HRV work again?
Your HRV will refresh the air in your home as often as possible and practical, using
warm, dry, purified air extracted from your roof cavity. This will flush out moisture,
odours, dust, pollen and all sorts of other unwanted nasties from your home, whilst
adding extra warmth when available.
Your HRV will constantly strive to achieve the temperature you have requested.
This means that in winter, whenever the roof cavity is warmed by solar energy, the
heating symbol will come on and your HRV will harness this freely heated air and
circulate it through your home. On hot summer nights, the inside of your home retains
heat when windows are closed for insects and for security. The HRV system then draws
in cooler night air to refresh you and provide refreshing, healthy ventilation.
The optional addition of a Summer Kit allows your HRV to draw cool air from the south
side of the house, providing a refreshing cooling effect on hot summer days. This
feature is fully automated. Our optional 1.1 kilowatt Air Tempering Unit ( ATU ) allows
the HRV to run when the roof space is cold, without cooling down your home,
boosting the ability of the system to dry even the dampest and coldest of homes.
Seasonal Suggestions for Ventilation level
Whilst your ventilation level is a personal preference and makes the HRV adaptable to any
home, it is suggested that you lower the ventilation level to 1 during the summer months
and increase it during winter to above 3. Having it above 3 in winter will ensure any
condensation is minimised.
My HRV was installed a couple of days ago, and it seems to be
working, but my windows are still fogging up. What’s wrong?
There’s nothing wrong, your HRV is doing its job perfectly! While you should notice an
improvement the very next day, best results are obtained a few weeks down the track,
after your HRV has had time to dry out walls, flooring, bedding and so on.
It’s working great, but I still get a mist occasionally on some windows
– why is this?
Even though your home is now dry, especially cold or damp weather conditions may still
lead to some misty windows – certainly far less than what you would have had without
the HRV. Having a party or cooking a big meal will also cause a bit of extra moisture, but
your HRV will set to clearing this out over the next day. No system can guarantee zero
condensation, but rest assured your HRV is getting you as close as is possible!
Why does my house feel cooler on winter mornings, and/or warmer
on summer days?
The system’s ventilation setting is too aggressive. In winter, this will help to achieve
maximum condensation control, but having this too high may make your home a little
cooler in the morning. In summer, this same setting may make the home a little warmer
during the day. You can adjust this setting and find a comfortable median using the
instructions on the inside spread of this leaflet.
HRV can be contacted at the following locations:
Auckland Support Office: [phone] Toll free: 0800 HRV 123 (0800 478 123)
Email: [e-mail] or [e-mail]
Things you can do to help are:
•Leave heavy blinds and drapes slightly ajar
•Use burnt toast mode to boost the system in the mornings or early evening
•Select a more appropriate ( more aggressive ) ventilation level
•Make sure the outlets are open wide
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 the outlets across the ceiling will cause a static
charge to build up. This can cause a build up of household dust from inside the room
attracted by the static charge. Simply wipe away the dust ring with a dry cloth, then turn
the diffuser plate of the vent open a little further to help stop this from recurring.
Finally, thanks again for choosing HRV!
We trust that your HRV will give you many years
of fault-free satisfaction.
HRV August 2008 Instruction Booklet R2.qxp:Layout 1 6/8/08 11:45 AM Page 1
“Thank you for choosing HRV”
We at HRV pride ourselves on providing superior ventilation systems and superior
service. Our systems have the highest airflow, the smartest control systems, and
the best filtration available to today’s home owner.
I’m excited! But how exactly does my HRV work again?
Your HRV will refresh the air in your home as often as possible and practical, using
warm, dry, purified air extracted from your roof cavity. This will flush out moisture,
odours, dust, pollen and all sorts of other unwanted nasties from your home, whilst
adding extra warmth when available.
Your HRV will constantly strive to achieve the temperature you have requested.
This means that in winter, whenever the roof cavity is warmed by solar energy, the
heating symbol will come on and your HRV will harness this freely heated air and
circulate it through your home. On hot summer nights, the inside of your home retains
heat when windows are closed for insects and for security. The HRV system then draws
in cooler night air to refresh you and provide refreshing, healthy ventilation.
The optional addition of a Summer Kit allows your HRV to draw cool air from the south
side of the house, providing a refreshing cooling effect on hot summer days. This
feature is fully automated. Our optional 1.1 kilowatt Air Tempering Unit ( ATU ) allows
the HRV to run when the roof space is cold, without cooling down your home,
boosting the ability of the system to dry even the dampest and coldest of homes.
Seasonal Suggestions for Ventilation level
Whilst your ventilation level is a personal preference and makes the HRV adaptable to any
home, it is suggested that you lower the ventilation level to 1 during the summer months
and increase it during winter to above 3. Having it above 3 in winter will ensure any
condensation is minimised.
My HRV was installed a couple of days ago, and it seems to be
working, but my windows are still fogging up. What’s wrong?
There’s nothing wrong, your HRV is doing its job perfectly! While you should notice an
improvement the very next day, best results are obtained a few weeks down the track,
after your HRV has had time to dry out walls, flooring, bedding and so on.
It’s working great, but I still get a mist occasionally on some windows
– why is this?
Even though your home is now dry, especially cold or damp weather conditions may still
lead to some misty windows – certainly far less than what you would have had without
the HRV. Having a party or cooking a big meal will also cause a bit of extra moisture, but
your HRV will set to clearing this out over the next day. No system can guarantee zero
condensation, but rest assured your HRV is getting you as close as is possible!
Why does my house feel cooler on winter mornings, and/or warmer
on summer days?
The system’s ventilation setting is too aggressive. In winter, this will help to achieve
maximum condensation control, but having this too high may make your home a little
cooler in the morning. In summer, this same setting may make the home a little warmer
during the day. You can adjust this setting and find a comfortable median using the
instructions on the inside spread of this leaflet.
HRV can be contacted at the following locations:
Auckland Support Office: [phone] Toll free: 0800 HRV 123 (0800 478 123)
Email: [e-mail] or [e-mail]
Things you can do to help are:
•Leave heavy blinds and drapes slightly ajar
•Use burnt toast mode to boost the system in the mornings or early evening
•Select a more appropriate ( more aggressive ) ventilation level
•Make sure the outlets are open wide
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 the outlets across the ceiling will cause a static
charge to build up. This can cause a build up of household dust from inside the room
attracted by the static charge. Simply wipe away the dust ring with a dry cloth, then turn
the diffuser plate of the vent open a little further to help stop this from recurring.
Finally, thanks again for choosing HRV!
We trust that your HRV will give you many years
of fault-free satisfaction.
HRV August 2008 Instruction Booklet R2.qxp:Layout 1 6/8/08 11:45 AM Page 1