SAI HVAC Compact Comfort VRF12 Manual

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Compact Comfort by SAI HVAC
VRF12 Controls Install Manual
Series 2

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Publisher
SAI HVAC
Phone [phone]
Internet www.compactcomfort.com
Revision V21.2
This Technical Manual describes the installation and operation of the Compact Comfort VRF12 controls system
and air conditioning maintenance for the installer.
Copyright
This publication is Copyright © 2021-2022 SAI HVAC. All rights reserved. No part of this publication may be
reproduced, stored in any retrieval system or transmitted, in any form or by any means, electronic,
mechanical, photocopying, recording or otherwise, without the prior written permission of SAI HVAC.
Disclaimer
SAI HVAC reserves the right to make changes and improvements to any of the products described in this
document without prior notice. Under no circumstances shall SAI HVAC be responsible for any loss of income
or any special, incidental, consequential or indirect damages howsoever caused.
Warranty
The contents of this document are provided “as is”. Except as required by applicable law, no warranties of any
kind, either express or implied, including, but not limited to, the implied warranties of merchantability and
fitness or a particular purpose, are made in relation to the accuracy, reliability or contents of this document,
SAI HVAC reserves the right to revise this document or withdraw it at any time without prior notice.
Sourcing
Proudly designed and manufactured in Australia by SAI HVAC, an independent Australian-owned company.

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Contents
1. About your VRF12 Controls System....................................................................................................................5
1.1 Compatibility ................................................................................................................................................5
1.2 Simple and Upgradable ................................................................................................................................5
1.3 Plug & Play....................................................................................................................................................5
1.4 Html User Interface ......................................................................................................................................5
1.5 Remote Access .............................................................................................................................................5
2. How to Connect to the System...........................................................................................................................6
2.1 Direct Connection via Wi-Fi..........................................................................................................................6
2.2a Wi-Fi Connection via your Wi-Fi Router .....................................................................................................7
2.2b Direct Connection via your LAN .................................................................................................................9
2.3 Connection via Mothership (Recommended) ..............................................................................................9
2.4 Using the Mothership Cloud Service ..........................................................................................................10
3. VRF12 Operating Instructions Using the User Interface...................................................................................11
3.1 Changing the System Mode .......................................................................................................................11
3.2 Notes on Dynamic Energy Recovery ..........................................................................................................11
3.3 Set the Optional Countdown Timer ...........................................................................................................11
3.4 Optional “Cooling” and “Economy” Settings..............................................................................................11
3.5 Setting the Global Time Schedules.............................................................................................................12
3.6 Leaving Global Time Schedules Page..........................................................................................................13
3.7 Accessing Individual Zone ..........................................................................................................................13
3.8 Return to Overview Page ...........................................................................................................................13
3.9 Browse to Other Systems ...........................................................................................................................13
3.10 Adjusting the Settings on a Zone..............................................................................................................13
3.11 Setting Time Schedule for Individual Zones .............................................................................................13
4. SAI HVAC VRF12 Controls .................................................................................................................................14
4.1 SAI HVAC VRF12 Navigator.........................................................................................................................14
4.1.1 Turning the System ON and OFF.........................................................................................................14
4.1.2 Turning a Zone ON and OFF ................................................................................................................14
4.1.3 Browsing to a Zone .............................................................................................................................15
4.1.4 Changing the Temperature in a Zone .................................................................................................15
4.2 Using the Single Button Capacitive Touch Room Controller ......................................................................15
4.3 Surface 7 Touchpad....................................................................................................................................16
5. Manufacturers Recommendations...................................................................................................................17
5.1 Return Air Filter Cleaning ...........................................................................................................................17
5.2 Outdoor Unit ..............................................................................................................................................17
5.3 Vents & Return Air Grill..............................................................................................................................17
5.4 Controllers..................................................................................................................................................17

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6. Troubleshooting................................................................................................................................................18
7. Other Documents in this Series ........................................................................................................................19

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1. About your VRF12 Controls System
1.1 Compatibility
A User Interface (UI) has been developed to simplify the commissioning, use and change of operating
parameters for the SAI HVAC range of products. A click of “Other Systems” at the top of the user page switches
between the various SAI HVAC systems.
1.2 Simple and Upgradable
The VRF12 architecture allows for remote upgrade of many features so as development continues new
features can be added via an internet connection.
1.3 Plug & Play
You can also add one of the other SAI HVAC systems such as climate control and lighting control. SAI HVAC
systems are “plug and play” you don’t need to call in a programmer, automation specialist or specialist
technician. Once the systems are connected on the same LAN they recognise each other and the appropriate
interface is loaded without the need for you to do anything.
1.4 Html User Interface
The html user interface can be used on most devices with a browser from a Smartphone or tablet to PC. The
display results vary slightly depending on your device and browser type used. Many people choose the iPad
mini as their UI platform but a laptop, PC or even your iPhone/Samsung can be used to control your SAI HVAC
product.
1.5 Remote Access
Providing your system is connected to a Local Area Network (LAN) with an internet connection, The system
allows you to remotely access your SAI HVAC systems remotely. This feature can be convenient for many
reasons and is achieved by a secure connection through the SAI HVAC Mothership (MS) global server. You first
login to mothership and then browse to your various SAI HVAC devices connected to your mothership account.
Your mothership account can provide access to your SAI HVAC devices at multiple locations so if you are a
building manager you can have access to all your sites at your fingertips through this one convenient and
simple access point.

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Figure 1 –Select SAI-VRF network in
Wi-Fi settings
Figure 2 –Enter the password –
“chatterbox”
(All lowercase)
2. How to Connect to the System
There are three different methods for connecting to the AC system. The method you choose will depend on
your location and the type of installation you are working on. Although you can connect to the inbuilt Wi-Fi
(see 2.1) a LAN connection is RECOMMENDED for optimal performance for the client (see 2.2)
2.1 Direct Connection via Wi-Fi
NOTE: The service Wi-Fi is for use when commissioning the system and only when no LAN connection is
available. Some warranty terms are affected when connecting using only this Wi-Fi service solution.
Each VRF12 controls system creates its own network via Wi-Fi. This means you can connect the clients smart
device/computer to the system.
1. Open your Wi-Fi settings on your device and select the SAI VRF network (Figure 1) –if multiple
chatterboxes ion site check for the Mac Address on the device you are connecting to.
2. The Password is “chatterbox”(Figure 2)
3. Once connected to the controls network you can open your browser and browse to the system IP
address 192.168.2.11
4. You may wish to bookmark the page or add a link to your home screen on your device, so that you
can press the link instead of having to refer back to the IP address each time you wish to connect.
(Figure 4)
5. Direct connection requires your personal device/PC to be within range of the controls network. As
this range can vary significantly depending on building conditions, the preferred method of
connection is via a LAN as discussed in the following paragraph.

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Figure 3 –Logged onto
network
Figure 4 –Type IP address into
browser & add to home screen or
book mark
Figure 5 –User Interface
launches
2.2a Wi-Fi Connection via your Wi-Fi Router
NOTE: There must be Wi-Fi signal at the location of the VRF 12 Controller and the client’s Wi-Fi must have
internet connection for the controller to connect to Mothership.
Each VRF12 controls system can connect to client Wi-Fi Network via using the onboard Wi-Fi. This means you
can connect the clients smart device/computer to the system.
1. Follow the steps listed above (2.1 Direct Connection via Wi-Fi) to get to the User interface.
2. Select SAI HVAC Logo (located in the top left corner of screen)
3. The Technical information window appears on the screen. →select “Network Settings”
4. Enter the SSID and Password for the client’s Wifi Network
5. Check the test above the SSID to see if you are connected to the network. Close browser and follow
the steps listed in section (2.3 Connection via Mothership).
6. Wi-Fi Connection requires your VRF 12 Controller to be within range of the client’s Wi-Fi network.
As this range can vary significantly depending on building conditions, the preferred method of
connection is via ethernet connection as described in section 2.2b Direct Connection via your LAN.

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Figure 6a –User interface
Figure 7a –Technical
information window –select
“Network Settings”
Figure 8a –SAI –Network
Settings
Figure 9 –Select SSID and
enter SSID as per the client
Wi-Fi Network.
Then select Password and
enter the client network
password associated with the
SSID
This line will show you when you
are connected to the Wi-Fi
Network

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2.2b Direct Connection via your LAN
Connecting the system to the local LAN via a network cable connected from the VRF12 MPM module to the
client’s router or a switch connected to the router is the preferred and best method for regular connection.
You can then access the system from anywhere the client has LAN coverage. (Figure 6)
When a connection is made the router will assign a unique IP address to the system. You can find this IP by
checking in the router settings, but we recommend you download one of the free programs for your apple of
android device such as FING (Figure 7). Such programs search your LAN and list all connected devices. This will
enable you to find your system IP, typically look something like 192.168.1.12 or similar number (Figure 8). By
typing this number into your browser, you will be able to access the Opening page of your system.
NOTE: Some older routers ship with UPNP disabled. You should check the router instruction manual for details
on how to check this setting. Without UPNP enabled, the system cannot connect. Remember that after power
failure the router may assign a different IP number to your system. In this case you will need to scan the
network with FING or similar program to find the new IP. It is possible to set a fixed IP in your router settings
however the method varies depending on your router brand and model. Your IT specialist should be able to
help. Connecting your system to your router using a cable gives a level of access control as access can only be
achieved by persons or devices having your LAN access password.
2.3 Connection via Mothership (Recommended)
Providing the clients system is connected to the building LAN and that the LAN has an internet connection, you
can setup an account on the SAI Mothership global server to allow remote connection to the system via MS.
1. Open your browser and browse to https://chatterboxmothership.com.au and click the register
button on the login page. (Figure 9)
2. The client can fill out registration details and we will send their registration name and password
within 24 hours together with instructions on how to access their system via the Mothership.
3. If you are within the LAN, i.e. at home and your device is connected to the same network the
system is running on, there will be a link at the bottom of the log in page titled “Your Local Devices”
with the Mac Address and system description. You can click this link to go straight to the User
Interface without having to log in. (Figure 9)
4. Once you have received notice of your User Name and Password, the client can go to the log in
page, enter the details, then press Login.
5. The next screen that launches will have a list of your AC systems. (Figure 10)
6. To access the User interface for any of the systems press the Launch button on the right hand side.
This will launch the interface and you can start to control your device. (Figure 11)
Figure 6b –Connecting
via Ethernet cable
Figure 7b –Use FING or similar to
scan network
Figure 8b –User Interface Launches.
Note IP Address is same as listed on
the FING Scan. (bottom of middle
image)
CS-VRF12-MPM

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Figure 10 –Welcome/Login/Registration Page.
Note the links at bottom of page when on the
LAN
2.4 Using the Mothership Cloud Service
https://chatterboxmothership.com.au
Figure 11 –Your devices will be listed on the control centre
screen. Press Launch for the device you wish to interact with.
Log in to the cloud service
Register for the service
Your local devices (on your network (LAN)