SmartVent positive+ User manual

HOME VENTILATION SYSTEMS
Firmware Version 3.7
User Manual
Your guide to a healthier home

Warning
- This appliance is not intended for use by persons (including children) with reduced physical, sensory or
mental capabilities, or lack of experience and knowledge, unless they have been given supervision or
instruction concerning use of the appliance by a person responsible for their safety.
- Children should be supervised to ensure that they do not play with the appliance.
- Isolate the mains supply before attempting to replace the system’s air filter.

3
Contents
How the System Works................................................................................................................ 4
Home Screen Icons .................................................................................................................... 5
Button Functions ........................................................................................................................ 5
Screen Highlights........................................................................................................................ 5
Modes
Auto Operation and Temperature Setting ................................................................................. 6
Manual Operation and System Fan Speed Setting.................................................................... 7
Boost ................................................................................................................................... 8
Recycle ................................................................................................................................ 8
Key Lock Setting.................................................................................................................... 8
Heat Transfer ............................................................................................................................. 9
Tempering Heater .................................................................................................................... 10
Home Screen Display Options
Relative Humidity ................................................................................................................ 11
Dew Point .......................................................................................................................... 11
System Time-Date Settings ....................................................................................................... 12
Scheduler Settings ................................................................................................................... 13
Advanced Settings
Advanced Setting Selection ................................................................................................. 14
Advanced Setting Menu ...................................................................................................... 15
Troubleshooting ....................................................................................................................... 16
Maintenance
Filter Replacement............................................................................................................... 18
Technical Specifications ........................................................................................................... 19
SmartVent Positive+ System
Firmware Version 3.7

4
1) For more information about SmartVent seasonal upgrades, contact 0800 140 150 or email [email protected]
How The System Works
Some features covered in this instruction manual are only available when installed and activated. Contact
SmartVent for more information if you are interested in adding additional features to your system.
The SmartVent Positive+ System
SmartVent Positive+ is a positive pressure system which uses air taken from the roof cavity to
ventilate your home.
Seasonal Upgrades 1)
Summer Feature
Adds outside air as second air source for continued quality ventilation in warmer months
supplying outdoor air when the roof cavity temperature exceeds that of the outside air.
Heat Transfer
To draw excess heat from your heated lounge and transfer it to bedrooms. Includes a
recycle function where inside air can be recirculated if the outside air temperature is
too cold to bring in as part of the primary ventilation process.
Tempering Heater
To help take the chill off incoming air (not a home heating solution).
When seasonal upgrades are added, your system can offer greater options in how it operates.
The options can override or influence one another as in the following examples.
Example: When the environment in your home meets your chosen heat transfer condition the ventilation and
tempering heater functions deactivate.
Example: When the system is ventilating and conditions are met for the heater to turn on, the speed of the fan
will be influenced by the heater function.

5
Home Screen Icons
Yellow highlight
indicates icon
is flashing
Green highlight
indicates button(s)
to push
Button Functions
Power OFF/ON or discard selections and return to Home Screen
From Home Screen enter setting screen or return to previous setting option
Scroll through setting options and change setting values
Save setting selection and go to next setting option
Screen Highlights
System Fan Speed
Ventilation Mode 1)
Air Source Indicator
Heat Transfer ON 2)
Tempering Heater ON 2)
Recycle ON
Temperature Sensing ON
Dew Control Mode ON
Dew Point Temperature
Home and Power
Settings
Up
Select
Down
Set 3)
Fresh Air Temperature 3) or
Fresh Air Relative Humidity 4)
Current Room Temperature or
Current Room Relative Humidity 5)
Key Lock ON
Rental Mode ON 6)
COMs 7)
Alert 8)
Time 9)
Scheduler Period and Day
1) Ventilation mode selections are AUTO or MAN (manual)
2) Only displayed if the seasonal upgrade is installed
3) The SET icon will appear when the temperature is being changed and the
progressive temperature changes being made will be displayed instead of
the Fresh Air temperature
4) Relative Humidity value is showing if the °C symbol is not displayed
5) Relative Humidity value is showing if the percentage % symbol is displayed
instead of the °C symbol.
6) When RENTAL mode is ON, user cannot switch system OFF
7) Flashes when communicating with ceiling controller
8) When an electronic fault in the system occurs, the alert icon will appear and
the applicable error code(s) will be displayed instead of the time
9) Time is displayed in a 24 hour clock format

6
Modes
Auto Operation and Temperature (TEMP) Setting
Your SmartVent Positive+ system can choose where to draw air from and at what speed depending on the Dew
Point, and then the indoor and outdoor air temperatures, when in AUTO. If the system is in either BOOST or
RECYCLE modes, the fan will, instead, operate at the speeds set for those particular modes.
You select the SET temperature you want it to be in the home (ie. 22°C (default)) and the system will work on the
best air source to achieve your SET temperature 1).
For example, if you set your system to 20°C while the current house temperature is 18.3°C, the control system
measures the incoming air temperature and alters the fan speed to suit. If the incoming air temperature is
20°C or higher, the fan will operate at a high speed to use the free heat to try and increase the overall house
temperature. If lower than 20°C, the fan speed would decrease to reduce the cooling effect 2).
- On the Home Screen, press SETTINGS and then UP , or DOWN , to toggle to VENTILATION mode
- Press SELECT to enter VENTILATION mode then UP , or DOWN , to toggle to AUTO operation and
follow the guide below to complete the setting of the SET temperature.
- Alternately, if already in ON and on the Home Screen, press SELECT to toggle directly to AUTO operation
and follow the same guide below to adjust the temperature setting.
1) Your system is not a heating or cooling device. This parameter is designed to reduce nuisance over-heating or over-cooling of your home.
2) Additional features are available when low temperatures are present. See HEAT TRANSFER, TEMPERING HEATER and RECYCLE modes.
Confirm
AUTO
operation Select
TEMP
value
Go to
TEMP
value
Save all
settings
Go to
Home
Screen

7
Modes
Manual (MAN) Operation and System Fan Speed and Air Source Settings
Your SmartVent Positive+ system allows manual control of the fan speed and air source if required. Fan speed
will remain constant at the speed set.
- On the Home Screen, press SETTINGS and then UP , or DOWN , to toggle to VENTILATION mode
- Press SELECT to enter VENTILATION mode and then UP , or DOWN , to toggle to MAN operation and
follow the guide below to complete the setting of the system fan speed and the selection of the air source.
- Alternately, if already in ON and on the Home Screen, press SELECT to toggle to MAN operation and
follow the same guide below to change the system fan speed.
Go to
AIR SOURCE
value
Confirm
FAN SPEED
value
Select
FAN SPEED
value
Go to
FAN SPEED
value
Confirm
MAN
operation
Select
AIR SOURCE
value
Go to
Home
Screen
Save all
settings

8
Key Lock Setting
When Key Lock is ON, system settings cannot be changed
- Press UP and DOWN together for 3 seconds, until the KEY LOCK icon is displayed, to confirm that
the system is locked.
- Press UP and DOWN together for 3 seconds, until the KEY LOCK icon is not displayed, to confirm
that the system is unlocked.
Modes
Boost
BOOST enables you to immediately override fan speed settings and boost fan speed to maximum.
- On the Home Screen, press SELECT for 3 seconds and system’s fan will boost to maximum speed.
- In BOOST mode, the time segments will become a count down to the end of the BOOST mode.
- A quick tap of SELECT on the Home Screen will exit BOOST mode.
Tap to Exit3 seconds
Recycle
RECYCLE is designed for environments where extremes of temperature are common. When your system is in
VENTILATION mode and the roof cavity temperature exceeds the maximum roof cavity temperature (30ºC) setting,
or goes below the minimum roof cavity temperature (5ºC) setting, your SmartVent system will limit the amount of
air entering your home.
If HEAT TRANSFER is installed, the RECYCLE icon will be displayed to indicate that your system is in RECYCLE
mode recycling indoor air to help reduce condensation build-up. In RECYCLE mode the fan will operate at the
Recycle speed you set in the Recycle setting (default = OFF). Recycle temperature settings (004 and 005) can be
adjusted in the Advanced Setting Menu on page 13.
If a HEAT TRANSFER kit is not installed, it is recommended that Recycle speed is set to OFF.
- On the Home Screen, press SETTINGS and then UP , or DOWN , to toggle to RECYCLE mode and
follow the guide below to complete.
RECYCLE mode may need to be activated. See Installation Instructions for details.
Select
FAN SPEED
value
Go to
FAN SPEED
setting
Save all
settings
Go to
Home
Screen

9
Heat Transfer
When HEAT TRANSFER is ON, the fan speed will be low when the lounge temperature exceeds the SET
temperature, and it will gradually speed up as your lounge gets warmer.
HEAT TRANSFER mode has priority over VENTILATION mode. To ensure your home stays regularly ventilated, we
recommend you use the timer function to turn HEAT TRANSFER OFF during the day, the middle of the night and
early morning. We also recommend HEAT TRANSFER is set to ON in the evening.
OFF Mode
HEAT TRANSFER mode is OFF.
- On the Home Screen, press SETTINGS and then UP , or DOWN , to toggle to HEAT TRANSFER mode
- Press SELECT to enter HEAT TRANSFER mode
- Press UP , or DOWN , to toggle to OFF and press SELECT to save
ON Mode and Temperature (TEMP) Setting
HEAT TRANSFER starts when the lounge temperature is higher than the temperature you choose. SET is the
minimum temperature you want in your lounge before your system commences transferring heat. The SmartVent
Positive+ touch screen controller, with a built-in thermostat, must be located in the heat source room for it to be
effective.
- On the Home Screen, press SETTINGS and then UP , or DOWN , to toggle to HEAT TRANSFER mode
- Press SELECT to enter HEAT TRANSFER mode
- Press UP , or DOWN , to toggle to ON and follow the guide below to complete
SCHEDULER Mode
HEAT TRANSFER can be set to work to a schedule which enables you to make the most of your HEAT TRANSFER
feature. We recommend you use the timer function to turn HEAT TRANSFER OFF during the day, the middle of the
night and early morning. We also recommend HEAT TRANSFER is set to ON in the evening.
See Scheduler Settings for detail on how to set up the scheduled times on pages 11 and 12.
Confirm
ON
setting Select
TEMP
value
Go to
TEMP
value
Save all
settings
Go to
Home
Screen

10
Tempering Heater
Your TEMPERING HEATER works with VENTILATION mode to take the chill off incoming air. When the TEMPERING
HEATER is active, the fans will run at medium speed. The TEMPERING HEATER is not designed to warm your
home, however, it will take the chill off the incoming air.
OFF Mode
TEMPERING HEATER is OFF.
- On the Home Screen, press SETTINGS and then UP , or DOWN , to toggle to TEMPERING HEATER
mode
- Press SELECT to enter TEMPERING HEATER mode
- Press UP , or DOWN , to toggle to OFF and press SELECT to save
ON Mode and Temperature (TEMP) Setting
The TEMPERING HEATER turns ON when the fresh air temperature is cooler than the SET temperature.
- On the Home Screen, press SETTINGS and then UP , or DOWN , to toggle to TEMPERING HEATER
mode
- Press SELECT to enter TEMPERING HEATER mode
- Press UP , or DOWN , to toggle to ON and follow the guide below to complete
SCHEDULER Mode
TEMPERING HEATER can be set to work to a schedule which can reduce the running cost of your TEMPERING
HEATER. We recommend you use the timer function to turn your TEMPERING HEATER OFF during the day and
evening, and set to ON overnight and early morning.
TEMPERING HEATER will be disabled if HEAT TRANSFER is operating.
See Scheduler Settings for detail on how to set up the scheduled times on pages 11 and 12
Confirm
ON
setting Select
TEMP
value
Go to
TEMP
value
Save all
settings
Go to
Home
Screen

11
Home Screen Display Options
The default Home Screen displays the Current Temperature in the roof cavity and the room. The standard Home
Screen can. however, be easily changed to display Relative Humidity instead by following the guide below.
Using the guide below, the preferred standard Home Screen selection can be made by cycling through Current
Temperature, Relative Humidity loop.
Relative Humidity Home Screen
The standard Home Screen can be changed to display the current Relative Humidity percentages in the roof cavity
and the room at any time.
- On the Home Screen, press UP , or DOWN , for 3 seconds to change the standard Home Screen display
from Current Temperature values to the Relative Humidity percentages in both the roof cavity and the room
- Relative Humidity percentages will remain as the standard Home Screen display until changed to Current
Temperature.
Press UP or DOWN
for 3 secs to go to
HUMIDITY
screen

12
System Time-Date Settings
System Time-Date Settings must be entered before system functions, such as scheduled start times for HEAT
TRANSFER and TEMPERING HEATER (if installed), can be set.
- On the Home Screen, press SETTINGS for 3 seconds to enter Time-Date Settings and follow the guide
below to complete
NOTE: Settings shown are examples only
- Press HOME at any stage to exit and enter Scheduler Settings
- Press SETTINGS at any stage to return to the previous screen
Select
MONTH
value
Go to
DAY DATE
value
Select
DAY DATE
value
Save all
TIME-DATE
settings
Go to
SCHEDULER
settings
Select
DAY
value
Go to
YEAR
value
Confirm
DAY
value
Select
HOUR
value
Go to
MINUTE
value
Confirm
HOUR
value
Confirm
MONTH
value
Select
MINUTE
value
Go to
DAY
value
Confirm
MINUTE
value
Select
YEAR
value
Go to
MONTH
value
Confirm
YEAR
value

13
System Operating Settings
Scheduler Settings
Setting the Scheduler is only necessary if you want HEAT TRANSFER or TEMPERING HEATER to operate for
predetermined times during each of the four periods available every 24 hours. Each period of time starts with the
scheduled start time for that period and ends at the start time for the next scheduled period.
Scheduler can be used with HEAT TRANSFER and TEMPERING HEATER seasonal upgrades and the period time
settings are common to both if installed. VENTILATION and TEMPERING HEATER functions will be disabled if HEAT
TRANSFER is operating.
- On the Home Screen, press SETTINGS for 3 seconds then press HOME to enter Scheduler Settings and
follow the guide below to complete
NOTE: Settings shown are examples only
- Press HOME at any stage to exit Scheduler Settings and return to the Home Screen
- Press SETTINGS at any stage to return to the previous screen
Period 1 Period 2 Period 3 Period 4
Go to
MINUTE
value
Select
MINUTE
value
Go to
PERIOD 2
Select
HOUR
value
Go to
MINUTE
value
Select
MINUTE
value
Go to
PERIOD 3
Select
HOUR
value
Go to
MINUTE
value
Select
MINUTE
value
Go to
PERIOD 4
Select
HOUR
value
Go to
MINUTE
value
Select
MINUTE
value
Go to
Home
Screen
Select
HOUR
value
Confirm
HOUR
value
Confirm all
PERIOD 1
settings
Confirm
HOUR
value
Confirm all
PERIOD 2
settings
Confirm
HOUR
value
Confirm all
PERIOD 3
settings
Confirm
HOUR
value
Save all
PERIOD 1-4
settings

14
Press for
3 seconds
Save
ADVANCED
SETTINGS
Turn
System
OFF
Enter
ADVANCED
SETTINGS
Select
Setting
VALUE
Turn
System
ON
Select
Setting
NUMBER
Go to
Setting
VALUE
Confirm
Setting
NUMBER
Enter
ADVANCED
SETTINGS
Advanced Settings
Advanced Setting Selection
Advance Settings enable you to change your SmartVent Positive+ system settings at any time to ensure you gain
maximum benefit of comfortable living conditions in a healthy home. Access to Advanced Settings is disabled
when RENTAL mode is ON.
Turn
System
OFF
Exit
Menu

15
Advanced Settings
Advanced Setting Menu
SETTING DESCRIPTION RANGE DEFAULT NOTE
000 Touch Screen Controller - Firmware Version N/A N/A
001 Ceiling Controller - Hardware Version N/A N/A
002 Ceiling Controller - Firmware Version N/A N/A
003 Ceiling Controller - Macro Version N/A N/A
004 Recycle Temperature - Maximum 20°C - 50°C 30°C 1
005 Recycle Temperature - Minimum 0°C - 20°C 5°C 1
006 Temperature Set - Threshold 0°C - 5°C 1°C
007 Temperature Set - Differential 0°C - 20°C 5°C
008 Heat Transfer Speed - High 0°C - 15°C 5°C
009 Heat Transfer Speed - Medium 0°C - 15°C 2°C
010 Dew Point - High 0°C - 15°C 5°C
011 Dew Point - Control Level 0°C - 5°C 1°C
012 Dew Point - Start -5°C - 5°C 0°C
013 Filter Used Percentage 0 – 100% 0%
014 Reserved N/A N/A
015 Temperature - Room -5°C - 5°C -0.5°C 2
016 Screen Brightness - Maximum 0-100% 80%
017 Screen Brightness - Minimum 0-100% 10%
018 Boost Time 0 min – 60 min 20 min
019 Filter Reset 0 - 100 0 3
1. If RECYCLE is enabled and the roof cavity sensor reading goes above the maximum recyle temperature setting or goes below the minimum recycle
temperature setting, then recycle mode will activate.
2. If your roof cavity or room temperature readings are inaccurate, use these settings to calibrate them.
3. To reset the filter change 019 setting value to 10 and press SELECT .

16
CODE DESCRIPTION ACTION
E030
Communication error between the
touch screen controller and the
ceiling controller
Ensure the connection between the touch screen controller
and the ceiling controller is correct and secure, and that the
cable is not damaged
0001 Clock error Change the time on the touch screen controller
1180 Roof cavity sensor com failure Ensure the connection between the sensor and the ceiling
controller is secure, and that the cable is not damaged
1280 Lounge sensor com failure
1x80 Wrong port connection Reboot the ceiling controller
Filter change required Replace filter and reset filter by changing Advanced Setting
019 to 10 and pressing SELECT to confirm
Troubleshooting
An ALERT icon and an error code will appear on the Home Screen when there
is an electronic fault in the system.
If there are multiple faults the error codes will cycle to the next code periodically.
Contact SmartVent for assistance if error codes not listed above appear or the
actions above do not clear the errors.

17
Troubleshooting
There is condensation forming on my windows
1Check that VENTILATION mode is set to AUTO
2 If HEAT TRANSFER is installed, ensure the scheduler is utilised to allow periods dedicated to ventilating your
home. See HEAT TRANSFER section on page 7 for additional information.
3 Test if air is coming out of the diffusers. If not then follow There is no air coming out my diffusers steps below.
4 To increase the velocity of air coming into the room, reduce the diffuser opening to 5-10mm.
There is no air coming out my diffusers
1 Check that the touch screen controller is powered ON.
2 Perform a manual test:
- Set HEAT TRANSFER and TEMPERING HEATER modes to OFF
- Check RECYCLE mode is OFF. If it is ON then adjust your Recycle Temperatures to turn RECYCLE mode OFF
(see SETTINGS 004 and 005).
- Set VENTILATION mode to MANUAL
- Cycle through the fan speeds and check for air coming out of your diffusers
- Make sure you check EVERY diffuser in the house
- Return your system back to its original settings.
3 If there is no air coming out of at least one of your diffusers during the test, report results to your installer.
My house feels colder with this system installed
1 Check your set temperature value in the VENTILATION settings.
2 Ventilation system brings in air from either the roof cavity or outside to improve the indoor air quality. This air
can sometimes be cooler than your desired indoor temperature. This is normal.
My house is too hot
1 SmartVent systems are designed to provide ventilation to the home. Being able to cool the home down to a
comfortable temperature in extreme temperatures is not guaranteed.
The scheduler is not switching at the right time
1 The system has up to a 5 minute delay between switching states.
2 Check that your system clock time is correct. The system clock needs to be updated manually when daylight
saving begins and ends.

18
Maintenance
Filter Replacement
The filter will require replacing when the ERROR CODE is displayed.
- When replacing with a filter of the same type, go to FILTER RESET (setting 019) to reset the filter.
- Contact SmartVent on 0800 140 150 for more information on the other filter types available and the
replacement of your current filter type if required.
- The alert will still be displayed if the filter is not installed correctly.
FILTER TYPE PRODUCT CODE TYPICAL LIFE
F7 FAN2093 12 months
F7 Carbon FAN2277 6 months
HEPA Carbon FAN2278 6 months

19
Specifications are subject to change without notice
Technical Specifications
TOUCH SCREEN CONTROLLER V3.7
Temperature Range 5-35ºC adjustable
Display Resolution 0.1ºC
Operating Voltage/Frequency 220-240V AC, 50Hz
Switching Voltage 240V AC Max
Switching Current 3A max resistive load
Sensing Element Thermistor
Operating Temperature 0 to 40ºC
Operating Humidity 5-90% non condensing
Live Output Isolation Relay
Output Control Relay / 0-10V DC
Display 3.5” digital LCD touch screen
Approval All relevant AS/NZS standards
EMC Approval All relevant AS/NZS standards

Contact: 0800 140 150
[email protected]
Distributed by Simx Limited
PO Box 14347, Panmure, Auckland, New Zealand.
Technical Support [phone] | e: [email protected] | w: www.simx.co.nz PUB1626 2107