HBX SNO-0550 User manual

HBX Control Systems Inc.
Installation Manual
Snow Melt Unit 0550
Version 2.14.1
SNO-0550

Control Systems Inc.
Comfort
Control
Innovation
HBX SNO-0550 Snow Melt Control
Version 2.14.1
Table of Contents
Table of Contents
Control Systems Inc.
Comfort
Control
Innovation
HBX SNO-0550 Snow Melt Control
Version 2.14.1
Table of Contents
TABLE OF CONTENTS
Introduction ............................................................................................ 1-3
Safety Symbols & Warnings ................................................................... 1
Receipt & Inspection................................................................................ 1
Description.................................................................................................2
Technical Data and Dimensions............................................................. 3
Wiring & Installation ............................................................................... 4
Wiring ....................................................................................................... 4
Installation ............................................................................................... 4
Programming SNO-0550 .........................................................................5-13
Status Screen............................................................................................. 5
Status & Mode Descriptions..................................................................... 6
Control Setup............................................................................................ 6
Navigating the SNO-0550.........................................................................7
Setup Menu............................................................................................... 7
Snow Rate Settings................................................................................... 8
Design Temperature Settings.................................................................. 9
Slab Settings.............................................................................................. 10
System Settings......................................................................................... 11
Testing Settings.......................................................................................... 12
WiFi Settings............................................................................................... 13
WiFi Network Setup...................................................................................14-17
Connecting to a Wireless Network iOS...................................................14-15
Connecting to a Wireless Network Android.......................................... 16-17
Adding the SNO-0550 to the HBX App................................................... 18
HBX App Functionality.............................................................................. 19
Sample Wiring and Diagrams................................................................. 20-21
Troubleshooting Guide............................................................................ 22-23
Testing and Troubleshooting Procedure................................................ 24
Sensor Errors..............................................................................................24
Warranty Information............................................................................... 25

HBX SNO-0550 Snow Melt Control
Version 2.14.1
© HBX Control Systems Inc. 2020 Page 1
Control Systems Inc.
Comfort
Control
Innovation
HBX SNO-0550 Snow Melt Control
Version 2.14.1
Table of Contents
HBX SNO-0550 SNOW MELT CONTROLLER
INTRODUCTION
This manual will help with the installation, parameter setting, troubleshooting
and general maintenance requirements for the controller. To guarantee the
safe and reliable operation of this control, you must rst read this manual in
detail and take particular note to any and all warnings or caution directives
prior to connecting to AC power.
Please consult and install the heating appliance in accordance with
manufacture’s recommendations.
QR CODE
Each SNO-0550 is labeled with a QR code, which when scanned will link to
a digital version of this manual. If this manual is ever lost or damaged, simply
scan this with a compatible device to download the latest manual version.
SAFETY SYMBOLS & WARNINGS
Extreme Hazard
This action poses a serious threat that could
result in personal injury or death, as well as
permanent damage to the equipment.
Proceed with caution.
Moderate Hazard
This action may cause personal injury or have
adverse effects on the installation process if
handled incorrectly.
Disconnect Power Source
The presence of low voltage(24VAC) or high
voltage(120VAC) could result in personal injury
or permanent damage to components or
equipment.
Point of Interest
This point claries pertinent information, or
brings your attention to an action that may
have adverse effects on the installation
process.
Drawing Reference
Refer to the specied electrical or mechanical
drawing at the back of the manual.
Only suitably qualied individuals with formal
training in electrical and Hydronic controls
should attempt the installation of this equipment.
Incorrect wiring and installation will affect the
warranty provided with this unit. Wiring must be
completed in accordance with the codes and
practices applicable to the jurisdiction for the
actual installation.
Use only copper conductor supply wire suitable
for at least 105 °C
The HBX SNO-0550 is a microprocessor based
controller and as such is not to be regarded as a
safety (limit) control. Please consult and install
the heating or cooling appliance in accordance
with the manufacturer’s recommendations.
RECEIPT & INSPECTION
After receiving, inspect the unit for any possible
physical damage that may have occurred during
transportation.
After unpacking the unit make sure the box contains:
• 1 x Remote Outdoor sensor (Part #OUT-0100)
• 2 x Universal sensors (Part #029-0022)
• 1 x Terminal Screwdriver (2.5mm)
• 2 x Cable ties
• 1 x Manual
WARNING: This product can expose you to chemicals
including lead, which is known to the State of California to
cause cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov.
!

HBX SNO-0550 Snow Melt Control
Version 2.14.1
Page 2
HBX SNO-0550 SNOW MELT CONTROLLER
DESCRIPTION
The SNO-0550 is a stand-alone snowmelt control that utilizes a unique sensor technology unmatched by any
other snowmelt control system on the market today. This control utilizes proprietary sensor technology to detect
falling snow. The snowmelt sensor uses a heater to melt the snow that lands on the sensor. The control then
measures actual snow fall rate.
The SNO-0550 consists of numerous exceptional features including settings for your snow fall intensity as well
as an adjustable ΔT. This distinctive design incorporates our user friendly programming features, while offering
applications and snow melt provisions over and above conventional slab sensing. With the ability to control
a system and an injection pump, or a oating action valve for mixing purposes, this value added stand-alone
control is suitable for single scale projects, or multi-zone projects that require individual optical sensors for each
melt zone.
The SNO-0550 can also be controlled remotely using your smartphone or tablet device with the free HBX
ThermoLinx App. The ThermoLinx App allows you to control your snow melt system with the ability to set snow fall
rates, adjust/monitor targets, set slab demands , and the ability to turn on/off your snow melt system anytime,
anywhere.
Some features of the HBX SNO-0550 are:
• Pre-set snow conditions
- Very Light
- Light
- Moderate
- Heavy
• Utilizes optical snow fall settings technology
• Integrated slab sensor (can be installed remotely)
• Injection and mixing valve control
• System pump control
• Warm / Cold weather shutdown
• Smart testing function
• Wi-Fi Enabled
• Remotely access via Apple®and Android™ smartphone or tablet devices
1 Hour
HBX On
Conventional On
Snowfall
Start
System Idle/Off
with HBX,
resulting in
SAVINGS
in operating
Costs!
2 Hours 3 Hours Snowfall
End
Very Light Light Moderate Heavy
As seen here, based on a “Light” snowfall setting, you
can see the HBX sensor will turn on the snowmelt system
much later than a conventional sensor. This results in
huge savings each snow season if your system can turn
on later and turn off sooner.

HBX SNO-0550 Snow Melt Control
Version 2.14.1
© HBX Control Systems Inc. 2020 Page 3
DIMENSIONS
TECHNICAL DATA & DIMENSIONS
Specications:
3 x Thermistor Input (10K Ohm)
1 x Demand Input Signal
3 x Relay Outputs (240VAC 5A) Dry Contacts
1 x 2Amp Dry Contact
Input: 120VAC +/- 10% 60Hz 15A Max
FCC ID: 2AHMR-ESP12S
Weight:
0.408Kg
Dimensions:
121mm W x 188mm H x 66mm
ETL Listings:
Meets CSA C22.2 No. 24
Meets UL Standard 873
ETL Control No. 3068143
Storage:
50°F to 104°F (10ºC to 40ºC)
RF Info:
Contains IC: 8169A-G2M5477
Contains FCC ID: U3O-G2M5477
WiFi: 2.4Ghz network only
SNO-0550
Central Processing Unit
Relays:
240VAC 5A Max
Input:
120VAC 15A Max
ENTER
SNO
ON/OFF
Boiler
Demand
Signal
Sensor (2)
Outdoor
Sensor
Optical
Sensor
120
VAC
Relay
Outputs (3)
STATUS
SLAB INT
SYSTEM
RETURN
OUTDOOR
BLR
ON
MLT TARGET
SNOW
NONE
SYS P
ON
FL UP
OFF
FL DN
ON
34°F
95°F
75°F
10°F
50°F
120°F
SNO-0110
66 mm
(2.60 in) (2.76 in)
70.19 mm
Side View Front View Rear View
Top View
188 mm
(7.40 in) (6.57 in)
(4.76 in) (3.94 in)
121 mm
167 mm
100 mm
Bottom View

HBX SNO-0550 Snow Melt Control
Version 2.14.1
Page 4
1, 2, 3, 4, 5: Snowmelt Optical Sensor
Connection order: Green - Contact 1, Red - Contact
2, White - Contact 3, Black - Contact 4,
Shield - Contact 5.
6, 7: Demand Signal
Apply snow melt demand from a dry contact. For
force melt demand, use a momentary switch.
8, 9: Boiler Contacts
Boiler enable contact.
Sensor Inputs
10, 13: System supply sensor- Brass strap on sensor, to
be installed on the supply to the snow melt manifold
11, 13: Return sensor - Brass strap on sensor, to be
installed on the return from the snow melt manifold
12, 13: Outdoor sensor - OUT-0100 install on the north
wall out of the sun and away from any exhaust vents.
Ensure that the hole for the wire is sealed.
14, 15, 16: Power Supply
Apply 120 VAC to power unit.
17, 18: Relay 1
Generally used as a system pump.
19, 20: Relay 2
Generally used as oating action valve up (Open).
21, 22: Relay 3
For injection mixing, generally used as injection pump.
For oating action mixing, generally used as oating
action valve down (Closed).
(Relays 1, 2 and 3 are dry contacts and rated
for a maximum of 5A.)
Please ensure no power is applied to pins 1 - 5
and 10 - 13.
When the desired sensor location is more than
100 feet from the SNO-0550, the sensor wire can
be extended using 18 AWG shielded cable (up
to 200 feet). The cable can be shortened if
required.
HBX
SNO-0550 Central Processing Unit
Demand Inputs
Sensor Inputs
Boiler Contacts
SNO-0110 Optical Sensor Relay 3
Relay 2
Relay 1
Supply Power 120 VAC
5 A
RL
1
RL
1817
1
5 A
RL
2
RL
2019
2
GR
120
16
N
L
1514
TM
32
11
TM TM
10 12 13
BL
1
BL
9
8
1
15
SG
2
2
PW TM
1 3 4
5 A
RL
2
RL
2221
2
FD
1
FD
76
1
5
S
4
3C
1
2 A
5 A 5 A
Central Processing Unit
SNO-0550
HBX
5 A
RL
1
RL
1817
1
RL
2
RL
2019
2
GR
120
16
N
L
1514
TM
32
11
TM TM
10 12 13
BL
1
BL
9
8
1
15
SG
2
2
PW TM
1 3 4
24 VAC MAX
RL
2
RL
2221
2
FD
1
FD
76
1
5
S
4
3C
1
2 A
DO NOT
CONNECT
POWER
HERE
DO NOT
CONNECT
POWER HERE
WIRING AND INSTALLATION
Wiring
All thermistor wiring must be with a minimum of 18AWG wire at a maximum of 500ft.
Installation
The SNO-0550 is designed to be wall mounted or installed in a separate
electrical enclosure. The unit should be mounted inside and protected from
falling water and high humidity conditions. With all the covers in place it is
designed to protect any individual from accidental electrical shock. It is not
suitable for installation in hazardous locations and should not be placed
close to any electromagnetic elds.
• Identify the four mounting holes on the SNO-0550, mark on the wall the
desired location of mounting.
• Predrill, anchor and fasten four screws for mounting.
• Hang SNO-0550 and fasten tight to desired locations
• Complete wiring connections in accordance with terminal locations.
Mounting Holes

HBX SNO-0550 Snow Melt Control
Version 2.14.1
© HBX Control Systems Inc. 2020 Page 5
Status Screen
STATUS
SLAB INT
SYSTEM
RETURN
OUTDOOR
BLR
ON
FMD STBY IDL MLT CWSD WWSD TARGET
SNOW
NONE
SYS P
ON
FL UP
OFF
FL DN
ON
34°F
95°F
75°F
10°F
50°F
120°F
Idle Mode
Snow Melt Mode
Cold Weather Shut Down
Standby Mode
Force Melt Demand
Warm Weather Shut Down
Current Temperatures
Slab Target
WiFi Status Indicator
Supply Tank Target
Snow Detection
HBX
SNO-0550 Central Processing Unit
SNO-0110 Sensor
Demand Input
ON/OFF Boiler
System Supply Sensor
Return Sensor
Outdoor Sensor
Floating Action Valve Down
Injection Pump
Floating Action Valve Up
System Pump
Supply Power 120 VAC
5 A
RL
1
RL
1817
1
5 A
RL
2
RL
2019
2
GR
120
16
N
L
1514
TM
32
11
TM TM
10 12 13
BL
1
BL
9
8
1
15
SG
2
2
PW TM
1 3 4
5 A
RL
2
RL
2221
2
FD
1
FD
76
1
5
S
4
3C
1
2 A
5 A 5 A
Central Processing Unit
SNO-0550
HBX
5 A
RL
1
RL
1817
1
RL
2
RL
2019
2
GR
120
16
N
L
1514
TM
32
11
TM TM
10 12 13
BL
1
BL
9
8
1
15
SG
2
2
PW TM
1 3 4
24 VAC MAX
RL
2
RL
2221
2
FD
1
FD
76
1
5
S
4
3C
1
2 A
DO NOT
CONNECT
POWER
HERE
DO NOT
CONNECT
POWER HERE
SENSOR ERRORS
HTR-LOWC: Low current is being drawn into the sensor and will not sense snow. Check the wiring of
the control. Refer to testing procedure on page 23, and inspect the SNO-0110 Sensor for signs of
damage or improper drainage.
Reset control when issue has been corrected to eliminate error code.
HTR-FAULT: High current is being drawn into the sensor and will not sense snow. Screen will ash
orange, and fuse in control will trip. Check the wiring of the control. Refer to testing procedure on
page 23, and inspect the SNO-0110 Sensor for signs of damage or improper drainage.
Reset control when issue has been corrected to eliminate error code.

HBX SNO-0550 Snow Melt Control
Version 2.14.1
Page 6
CONTROL SETUP
Multicolour backlit Display
The Multicolour Backlit Display is one of the key features
of the HBX Controls stand-alone SNO-0550 Control.
Depending on which mode of operation is selected the
screen colour will change to indicate information about
the status of the system.
Screen Colors
Light Blue (White) - No Demand/ OFF
Green - Standby Mode
Dark Blue - Idle Mode
Red - Melt Mode
Flashing Orange - Optical Sensor Fault
STATUS & MODE DESCRIPTIONS
ON: Control is awaiting signal from optical sensor or Forced Melt Demand from user.
OFF: Control is in WWSD/CWSD or no demand is present (Pins 6-7) when in DEMAND mode STANDBY/IDLE (See
Page 11)
MELT: Control is ON and snow was detected by the sensor higher then the intensity setting.
IDLE: Control is ON and maintaining the slab at the idle temperature until snow is detected by optical sensor or
forced melt demand is given by user.
STANDBY: Control is ON but not maintaining a slab temperature. Control will remain ON until snow is detected
by optical sensor or forced melt demand is given by user.
ANTICIPATE: Control will be ON in STANDBY or IDLE for the amount of time determined by the user in ANTICIPATE
DAYS.
ANTICIPATE DAYS: If snow is detected during this time control will go in to melt mode. Otherwise the control will
be OFF after ANTICIPATE DAYS has elapsed.
FORCE MELT: When control is ON and awaiting snow detection by optical sensor, if demand is given (PINS 6-7)
control will go into melt mode. Pressing UP and DOWN arrow buttons simultaneously for approximatelty 10
seconds will also override sensor and force melt mode.
SNO-0550
Central Processing Unit
Relays:
240VAC 5A Max
Input:
120VAC 15A Max
ENTER
SNO
ON/OFF
Boiler
Demand
Signal
Sensor (2)
Outdoor
Sensor
Optical
Sensor
120
VAC
Relay
Outputs (3)
STATUS
SLAB INT
SYSTEM
RETURN
OUTDOOR
BLR
ON
MLT TARGET
SNOW
NONE
SYS P
ON
FL UP
OFF
FL DN
ON
34°F
95°F
75°F
10°F
50°F
120°F
SNO-0110

HBX SNO-0550 Snow Melt Control
Version 2.14.1
© HBX Control Systems Inc. 2020 Page 7
NAVIGATING THE SNO-0550
All programming steps within the SNO-0550
are achieved by using the three buttons (and
combination thereof) located below the screen.
The ▼ button is used to scroll down in menu screens
and decrease a value within specic options.
The ▲ button is used to scroll up in menu screens
and increase a value in specic options.
The ENTER button is used to access the setpoint
menu and select a setting.
SNO-0550
Central Processing Unit
Relays:
240VAC 5A Max
Input:
120VAC 15A Max
ENTER
SNO
ON/OFF
Boiler
Demand
Signal
Sensor (2)
Outdoor
Sensor
Optical
Sensor
120
VAC
Relay
Outputs (3)
STATUS
SLAB INT
SYSTEM
RETURN
OUTDOOR
BLR
ON
MLT TARGET
SNOW
NONE
SYS P
ON
FL UP
OFF
FL DN
ON
34°F
95°F
75°F
10°F
50°F
120°F
SNO-0110
SETUP MENU
The SETUP menu is used for entering the design values, as well as assign different control options. To access the
setup menu, push the ENTER button on the STATUS screen. Use the ▲ or ▼ buttons to scroll through the various
settings.
To select a parameter, align the cursor arrow with the desired parameter and press the ENTER button. the
arrow will become solid ►, which indicates that a parameter has been selected.
Adjust the setting to the desired value with the ▲ or ▼ buttons. Once the correct value is set, push the ENTER
button. This will deselect the parameter.
To go to the previous screen, push and hold the ENTER button. If the SETUP menu is left for more than 90
seconds, the display will change to the STATUS screen and the control will resume operation. During SETUP, the
control is not operating.
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
°SNOW RATE SETUP
1) SNOW RATE
VERY LIGHT
STATUS
SLAB INT
SYSTEM
RETURN
OUTDOOR
BLR
ON
MLT TARGET
SNOW
NONE
SYS P
ON
FL UP
OFF
FL DN
ON
34°F
95°F
75°F
10°F
50°F
120°F
Holding the ▲ and ▼ buttons on the STATUS screen simultaneously for 10 seconds will put the
control into forced melt demand.

HBX SNO-0550 Snow Melt Control
Version 2.14.1
Page 8
PROGRAMMING GUIDE
1) SNOW RATE
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
°SNOW RATE SETUP
1) SNOW RATE
VERY LIGHT
°SNOW RATE SETUP
1) SNOW RATE
LIGHT
°SNOW RATE SETUP
1) SNOW RATE
MODERATE
°SNOW RATE SETUP
1) SNOW RATE
HEAVY
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
°SNOW RATE SETUP
1) SNOW RATE
VERY LIGHT
°SNOW RATE SETUP
1) SNOW RATE
LIGHT
°SNOW RATE SETUP
1) SNOW RATE
MODERATE
°SNOW RATE SETUP
1) SNOW RATE
HEAVY
SNOW RATE SETUP
Very Light (Default)
This will set the control to trigger MELT mode when a Very Light snowfall is detected.
Light
This will set the control to trigger MELT mode when a Light snowfall is detected.
Moderate
This will set the control to trigger MELT mode when Moderate snowfall is detected.
Heavy
This will set the control to trigger MELT mode when Heavy snowfall is detected.
Snow Rate Setup
This setting is used to congure the snowfall rate at which your system will go into
MELT mode
Optical Sensor Melt Trigger Sensitivity
Snow Rates
Very Sensitive
Very Light Light Moderate Heavy
Least Sensitive

HBX SNO-0550 Snow Melt Control
Version 2.14.1
© HBX Control Systems Inc. 2020 Page 9
2) DESIGN TEMPERATURE
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURES
1) DELTA T
2) MIN SYSTEM
3) MAX SYSTEM
4) WWSD
5) CWSD
6) °C OR °F
25°F
50°F
120°F
40°F
0°F
°F
DESIGN TEMPERATURE SETUP
Delta T
Set this temperature to the ∆t you would like in the system. This will calculate the
system target. The target is calculated by using system supply and system return
temperatures: System Target = System return + System ∆t
(2°F to 60°F) Default: 25°F
Minimum System Temperature
Set this to the minimum temperature you would like your entering water temperature
in the slab to be. This is for the low temperature system loop.
(20°F to 180°F) Default: 50°F
Maximum System Temperature
Set this to the maximum temperature you would like your entering water temperature
in the slab to be. This is for the low temperature system loop.
(20°F to 180°F) Default: 120°F
Warm Weather Shut Down
This is used to set the temperature in which the SNO-0550 will go into WWSD. If the
outdoor temperature rises above this temperature, the control will turn OFF. In WWSD
the boilers and all pumps will shut off, and slab temperature will not be maintained.
(2°F to 55°F) Default: 40°F
Cold Weather Shut Down
This is used to set the temperature in which the SNO-0550 will go into CWSD. If the
outdoor temperature dips below this temperature, the control will turn OFF. In CWSD
the boilers and all pumps will shut off, and slab temperature will not be maintained.
(-40°F to 40°F) Default: 0°F
Celsius or Fahrenheit Setup
Toggle this setting to set the control to display values in either Celsius or Fahrenheit.
Design Temperature Setup
This setting allows you to customize each design temperature for your
system

HBX SNO-0550 Snow Melt Control
Version 2.14.1
Page 10
3) SLAB SETTINGS
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
1) IDLE TEMP
2) MELT TEMP
3) MELT TIME
4) SENSOR LOC
20°F
50°F
3H
INT
SLAB SETUP
Idle Temperature
This is the slab setpoint when there is no snowfall present, and the control is operating
between the WWSD and CWSD parameters.
(-39°F to 80°F) Default: 20°F
To turn Idle Temperature OFF, set temperature below -39 °F or above 80 °F.
Melt Temperature
This is the slab setpoint when there is a snowfall detected by the optical sensor, or is
manually put into a Forced Melt.
(20°F to 100°F) Default: 50°F
Melt Time
This setting allows for the system to stay on even after no snow is present. This will melt
any residual snow that has accumulated and not melted. This time is also used when
a force melt demand is given. Once a force melt demand is given the control will
stay in MELT mode for this amount of time.
(1H to 99H) Default: 3H
Sensor Location
Set this to INT when the Snow/ Ice Optical Sensor is mounted in-slab, or set to REM
when mounted remotely.
(INT or REM) Default: INT
Slab Setup
This setting is used to congure your slab options.

HBX SNO-0550 Snow Melt Control
Version 2.14.1
© HBX Control Systems Inc. 2020 Page 11
4) SYSTEM SETTINGS
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
FORCE MELT
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
FORCE MELT
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
STANDBY/IDLE
THIS DEMAND WILL PLACE THE
SLAB INTO STANDBY
OR IDLE MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
3) ANTICIPATE DAYS 2
INJECTION
ANTICIPATE
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
3) ANTICIPATE DAYS 2
INJECTION
ANTICIPATE
THIS DEMAND WILL PLACE THE
SLAB INTO STANDBY OR IDLE
MODE FOR 2 DAYS
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
FORCE MELT
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
FORCE MELT
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
STANDBY/IDLE
THIS DEMAND WILL PLACE THE
SLAB INTO STANDBY
OR IDLE MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
3) ANTICIPATE DAYS 2
INJECTION
ANTICIPATE
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
3) ANTICIPATE DAYS 2
INJECTION
ANTICIPATE
THIS DEMAND WILL PLACE THE
SLAB INTO STANDBY OR IDLE
MODE FOR 2 DAYS
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
FORCE MELT
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
FORCE MELT
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
STANDBY/IDLE
THIS DEMAND WILL PLACE THE
SLAB INTO STANDBY
OR IDLE MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
3) ANTICIPATE DAYS 2
INJECTION
ANTICIPATE
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
3) ANTICIPATE DAYS 2
INJECTION
ANTICIPATE
THIS DEMAND WILL PLACE THE
SLAB INTO STANDBY OR IDLE
MODE FOR 2 DAYS
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
FORCE MELT
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
FORCE MELT
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
STANDBY/IDLE
THIS DEMAND WILL PLACE THE
SLAB INTO STANDBY
OR IDLE MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
3) ANTICIPATE DAYS 2
INJECTION
ANTICIPATE
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
3) ANTICIPATE DAYS 2
INJECTION
ANTICIPATE
THIS DEMAND WILL PLACE THE
SLAB INTO STANDBY OR IDLE
MODE FOR 2 DAYS
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
FORCE MELT
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
FORCE MELT
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
STANDBY/IDLE
THIS DEMAND WILL PLACE THE
SLAB INTO STANDBY
OR IDLE MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
3) ANTICIPATE DAYS 2
INJECTION
ANTICIPATE
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
3) ANTICIPATE DAYS 2
INJECTION
ANTICIPATE
THIS DEMAND WILL PLACE THE
SLAB INTO STANDBY OR IDLE
MODE FOR 2 DAYS
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
FORCE MELT
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
FORCE MELT
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
STANDBY/IDLE
THIS DEMAND WILL PLACE THE
SLAB INTO STANDBY
OR IDLE MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
3) ANTICIPATE DAYS 2
INJECTION
ANTICIPATE
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
3) ANTICIPATE DAYS 2
INJECTION
ANTICIPATE
THIS DEMAND WILL PLACE THE
SLAB INTO STANDBY OR IDLE
MODE FOR 2 DAYS
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
FORCE MELT
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
FORCE MELT
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
INJECTION
STANDBY/IDLE
THIS DEMAND WILL PLACE THE
SLAB INTO STANDBY
OR IDLE MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
3) ANTICIPATE DAYS 2
INJECTION
ANTICIPATE
THIS DEMAND WILL PLACE THE
SLAB INTO MELT MODE
SYSTEM SETUP
1) MIXING
2) DEMAND
3) ANTICIPATE DAYS 2
INJECTION
ANTICIPATE
THIS DEMAND WILL PLACE THE
SLAB INTO STANDBY OR IDLE
MODE FOR 2 DAYS
SYSTEM SETUP
Demand Type
This setting is a manual demand by the user. When a demand is given, the control will
go into the selected mode. The demand input is located on terminal pins 6-7.
Default: FORCE MELT
FORCE MELT: This demand type allows the control to run
automatically. When a momentary manual demand from pins
6-7 or via the app is given, the control will go into MELT mode.
When no manual demand is present, control will go into IDLE
mode and await snow melt detection by the optical sensor.
STANDBY/IDLE: When a manual demand is given from pins 6-7
or via the app, the control will IDLE and await snow detection
by the optical sensor. Once snow is detected and it runs
through the melt cycle the control will reset into the IDLE
state as long as the demand is still present. If the Demand is
removed prior to it initiating a MELT mode, then it will resort
back into a STANDBY/OFF state. When no manual demand is
present, the control will be in a STANDBY/OFF state.
ANTICIPATE: When a momentary manual demand is given from
pins 6-7 or via the app, the control will IDLE for the amount of
days selected in ANTICIPATE DAYS and await snow detection
by the optical sensor. When the time has expired or it has
nished a MELT cycle the control will revert into a STANDBY/OFF
state. When no manual demand is present, control will be in a
STANDBY/OFF state.
ANTICIPATE DAYS: This setting will determine the length of time
control will be on in ANTICIPATE mode.
(1 to 7) Default: 2
Mixing Type
This setting is used to select mixing type.
INJ: PMIp injection pump
FLO: Floating action valve [power open (valve up)/ power close (valve down)]
(FLO and INJ) Default: INJ
If you are not using any mixing these settings do not apply, but still ensure that
you connect the return and supply sensors to the SNO-0550 as it will not
function without these installed.
System Setup
This setting is used to congure the demand type and mixing settings.

HBX SNO-0550 Snow Melt Control
Version 2.14.1
Page 12
5) TESTING
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
TESTING
1) CONTROL INFO
2) FUNCTION TEST
3) RELAY 1
4) RELAY 2
5) RELAY 3
6) RELAY 4
ON
OFF
OFF
OFF
OFF
TESTING
1) CONTROL INFO
2) FUNCTION TEST
3) RELAY 1
4) RELAY 2
5) RELAY 3
6) RELAY 4
ON
OFF
OFF
OFF
OFF
TESTING
1) CONTROL INFO
2) FUNCTION TEST
3) RELAY 1
4) RELAY 2
5) RELAY 3
6) RELAY 4
ON
OFF
OFF
ON
OFF
SETUP MENU
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
TESTING
1) CONTROL INFO
2) FUNCTION TEST
3) RELAY 1
4) RELAY 2
5) RELAY 3
6) RELAY 4
ON
OFF
OFF
OFF
OFF
TESTING
1) CONTROL INFO
2) FUNCTION TEST
3) RELAY 1
4) RELAY 2
5) RELAY 3
6) RELAY 4
ON
OFF
OFF
OFF
OFF
TESTING
1) CONTROL INFO
2) FUNCTION TEST
3) RELAY 1
4) RELAY 2
5) RELAY 3
6) RELAY 4
ON
OFF
OFF
ON
OFF
TESTING SETUP
Control Information
This setting will display processing information about the control and optical sensor.
Please see troubleshooting guide (page 24) for more information.
Function Test
This setting will allow the user to pre-test the control during setup. It will set the outdoor
temperature to 10 °F and the system temperature to 80 °F so the system will test in
warmer months.
Relay Test
These settings will test each relay in the control in order to ensure correct operation.
The user is able to test each relay individually. In order to test, select the desired
relay by pressing ENTER. The relay can be toggled on and off by pressing the ▲ or ▼
buttons.
Testing Setup
This setting is used to test and view functionality of the control.

HBX SNO-0550 Snow Melt Control
Version 2.14.1
© HBX Control Systems Inc. 2020 Page 13
WIFI SETUP
Password
This is the password for the device, selecting this option allows you to change the
device’s password to secure the privacy of this device when needed.
No: Password will remain the same.
Yes: The control will randomly generate a new password.
Setup WIFI
SSID: This will display the connected network or can also be selected to manually
enter a network
1) Network name location
2) NEXT: When inputing the password select this to input the next letter or number in
the sequence of the password
3) DELETE: When inputing the password use this to delete the letter or number, this will
return you to the previous sequence
4) DONE: When you have correctly inputed the password select done to return to the
previous screen
Password: This will display the password for the network, select this to manually enter
the password
1) Password location
2) NEXT: When inputing the password select this to input the next letter or number in
the sequence of the password
3) DELETE: When inputing the password use this to delete the letter or number, this will
return you to the previous sequence
4) DONE: When you have correctly inputed the password select done to return to the
previous screen
Scan for Networks: Selecting this will automatically scan for all available networks
SSID: press the enter button then using the up and down keys select your network,
once it is selected hold the middle key for 2 seconds to return to the previous screen.
SETUP MENU 2.00
1) HEAT PUMPS
2) TANKS
3) BACKUP
4) ENERGY CLOCK
5) PRIORITY
6) WIFI
COLD
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
CHANGE PASSWORD
1) NO
2) YES
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
SETUP WIFI
OPEN PHONE SETTINGS AND
CONNECT TO THERMOLINX002
NETWORK. ONCE CONNECTED
OPEN THE APP
SYNC-CODE ACPU-1234
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
SYNC-CODE ACPU-1234
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP MENU 2.00
1) HEAT PUMPS
2) TANKS
3) BACKUP
4) ENERGY CLOCK
5) PRIORITY
6) WIFI
COLD
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
CHANGE PASSWORD
1) NO
2) YES
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
SETUP WIFI
OPEN PHONE SETTINGS AND
CONNECT TO THERMOLINX002
NETWORK. ONCE CONNECTED
OPEN THE APP
SYNC-CODE ACPU-1234
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
SYNC-CODE ACPU-1234
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP MENU 2.00
1) HEAT PUMPS
2) TANKS
3) BACKUP
4) ENERGY CLOCK
5) PRIORITY
6) WIFI
COLD
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
CHANGE PASSWORD
1) NO
2) YES
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
SETUP WIFI
OPEN PHONE SETTINGS AND
CONNECT TO THERMOLINX002
NETWORK. ONCE CONNECTED
OPEN THE APP
SYNC-CODE ACPU-1234
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
SYNC-CODE ACPU-1234
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP MENU 2.00
1) HEAT PUMPS
2) TANKS
3) BACKUP
4) ENERGY CLOCK
5) PRIORITY
6) WIFI
COLD
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
CHANGE PASSWORD
1) NO
2) YES
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
SETUP WIFI
OPEN PHONE SETTINGS AND
CONNECT TO THERMOLINX002
NETWORK. ONCE CONNECTED
OPEN THE APP
SYNC-CODE ACPU-1234
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
SYNC-CODE ACPU-1234
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234

HBX SNO-0550 Snow Melt Control
Version 2.14.1
Page 14
Connection
This option displays the current Wi-Fi connection status.
Ready: Awaiting for Wi-Fi setup. Control is not connected to a Wi-Fi internet network.
Wi-Fi: The control is connected to a Wi-Fi network, but unable to communicate with
our server, ensure that PORT 1314 is open
Server: The control is connected to a Wi-Fi network and is communicating with the
ThermoLinx server. You can now add the device to the ThermoLinx App.
SETUP MENU 2.00
1) HEAT PUMPS
2) TANKS
3) BACKUP
4) ENERGY CLOCK
5) PRIORITY
6) WIFI
COLD
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
CHANGE PASSWORD
1) NO
2) YES
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
SETUP WIFI
OPEN PHONE SETTINGS AND
CONNECT TO THERMOLINX002
NETWORK. ONCE CONNECTED
OPEN THE APP
SYNC-CODE ACPU-1234
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
SYNC-CODE ACPU-1234
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
Once connected, the SNO-0550 control will display a
constant Wi-Fi Symbol on the top right corner of the main
status screen, and in the Wi-Fi menu Connection will say
SERVER.
Send to WIFI: Select this once you have correctly entered the password to the
selected Network. The control will send the SSID and password upon which it will
automatically connect. Press and hold the enter button for 2 seconds to return to the
WIFI SETTINGS screen. CONNECTION should change from WIFI to SERVER. Once this
happens the SNO-0550 is now connected to the network.
SETUP MENU 2.00
1) HEAT PUMPS
2) TANKS
3) BACKUP
4) ENERGY CLOCK
5) PRIORITY
6) WIFI
COLD
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
CHANGE PASSWORD
1) NO
2) YES
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
SETUP WIFI
OPEN PHONE SETTINGS AND
CONNECT TO THERMOLINX002
NETWORK. ONCE CONNECTED
OPEN THE APP
SYNC-CODE ACPU-1234
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
SYNC-CODE ACPU-1234
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SETUP WIFI
1) SSID
2) PASSWORD
3) SCAN FOR NETWORKS
4) SEND TO WIFI
SYNC-CODE ACPU-1234
SNO-0550
Central Processing Unit
Relays:
240VAC 5A Max
Input:
120VAC 15A Max
ENTER
SNO
ON/OFF
Boiler
Demand
Signal
Sensor (2)
Outdoor
Sensor
Optical
Sensor
120
VAC
Relay
Outputs (3)
STATUS
SLAB INT
SYSTEM
RETURN
OUTDOOR
BLR
ON
MLT TARGET
SNOW
NONE
SYS P
ON
FL UP
OFF
FL DN
ON
34°F
95°F
75°F
10°F
50°F
120°F
SNO-0110

HBX SNO-0550 Snow Melt Control
Version 2.14.1
© HBX Control Systems Inc. 2020 Page 15
ADDING DEVICES
Adding Devices to the HBX ThermoLinx App
1. On the home screen, select “+ Device”.
2. Add the name of your SNO-0550. Leave this option blank if the SNO-0550 itself is already displaying a name.
3. Enter sync code for SNO-0550 Control. The sync code can be found in the Wi Setup Menu on the SNO-
0550.
The rst half of the Sync-Code will always be letters, and the second half will always be numbers.
4. Enter password for SNO-0550. The password can be found in the Wi Setup Menu on the Control.
5. Enter a system location name and select done/enter. (Ex. Home, Ofce, Cabin, etc.) This is the name of the
system location, not the SNO-0550 you added.
Symbols and numbers cannot be used in location name
6. After you have entered the system location name, select the location so it is highlighted, and select save.
100%9:41 AM
Devices
Locations
83°
-- --
°F
No devices!
None
Room Temp Target
100%9:41 AM
Add Device
83°
Room Name
Select Location
Add Name Here
Leave Blank if device already named
Sync Code
SNOW-1234
AB12
Password
Add Location
Home
SETUP MENU 2.10
1) SNOW RATE SETUP
2) DESIGN TEMPS
3) SLAB SETUP
4) SYSTEM SETUP
5) TESTING
6) WIFI
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
CHANGE PASSWORD
1) NO
2) YES
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
SETUP WIFI
OPEN PHONE SETTINGS AND
CONNECT TO THERMOLINX002
NETWORK. ONCE CONNECTED
OPEN THE APP
SYNC-CODE SNOW-1234
SETUP WIFI
1) PASSWORD
2) SETUP WIFI
3) CONNECTION
AB12
READY
SYNC-CODE SNOW-1234
SYNC-CODE SNOW-1234

HBX SNO-0550 Snow Melt Control
Version 2.14.1
Page 16
HBX APP FUNCTIONALITY
1. Demand Type
This setting is used to determine what the slab does when a demand is given to the control:
Force Melt: When a demand is given the control will go into MELT Mode. When no demand is given,
the optical sensor will actively look for snow to trigger a melt demand.
Standby/Idle: When a demand is given, the control will turn on and await snow detection by the
optical sensor or Force Melt demand by user. When no manual demand is present, control will be in
an OFF state.
Anticipate: When a demand is give the control will turn ON for the amount of time (1-7 days) selected
in Aniticpate days (Advanced Settings) and await snow detection by optical sensor or Force Melt
Demand by the user.
2. Demand
This allows you to toggle the demand On/Off.
3. Melt Now/Off
This allows you to turn Melt Mode off.
4. Advanced Settings
Allows you to have access to all the settings on the SNO-0550 control including snow rate setup, Design
temperatures, Slab and System setup.
A contractor code is required for Advanced Settings. Contact HBX Technical Support for this code.
100%9:41 AM
SNOW MELT 57°F
Boiler
Advanced
Advanced Settings
Demand Type Demand Melt Now
Target
°F °F
°F °F
°F °F
Target
Slab
34 50
95
75 10
120
Supply
Return Outdoor
System Pump
Mixing
SaveBack Settings
System Status
Melt Now/Off
Demand
Demand Type

Page 17
2) Snow Melt with Injection Mixing and Remote Slab Sensor and WiFi Connection
1) Snow Melt with Injection Mixing and WiFi Connection
WIRING DIAGRAMS
Title
DRAWING TITLE
Notes:
This is not an engineered drawing and does not necessarily include all the components for an entire system. It is intended
as a representative sample of how the control may be wired for a sample application. It is the responsibility of the installer
to seek professional advice and/or install the the system to meet all necessary codes for the jurisdiction of the actual
installation.
Title
Snow Melt with Injection Mixing and ThermoLinx Wi-Fi Module
Boiler Outdoor
Sensor
Return
Sensor
System
Sensor
Demand
Inp
(Optional)
ut
L
120 V AC
System Pump
Injection Mixing Pump
Optical Sensor
N
FD
GREEN
RED
WHITE
BLACK
SHIELD
5 A 5 A
Central Processing Unit
SNO-0550
HBX
5 A
RL
1
RL
1817
1
RL
2
RL
2019
2
GR
120
16
N
L
1514
TM
32
11
TM TM
10 12 13
BL
1
BL
9
8
1
15
SG
2
2
PW TM
1 3 4
24 VAC MAX
RL
2
RL
2221
2
FD
1
FD
76
1
5
S
4
3C
1
2 A
DO NOT
CONNECT
POWER
HERE
DO NOT
CONNECT
POWER HERE
Optical Sensor
Slab
Sensor
GREEN
RED
BLACK
Title
DRAWING TITLE
Notes:
This is not an engineered drawing and does not necessarily include all the components for an entire system. It is intended
as a representative sample of how the control may be wired for a sample application. It is the responsibility of the installer
to seek professional advice and/or install the the system to meet all necessary codes for the jurisdiction of the actual
installation.
Title
Snow Melt with Injection Mixing and ThermoLinx Wi-Fi Module
Boiler Outdoor
Sensor
Return
Sensor
System
Sensor
Demand
Inp
(Optional)
ut
L
120 V AC
System Pump
Injection Mixing Pump
N
FD
5 A 5 A
Central Processing Unit
SNO-0550
HBX
5 A
RL
1
RL
1817
1
RL
2
RL
2019
2
GR
120
16
N
L
1514
TM
32
11
TM TM
10 12 13
BL
1
BL
9
8
1
15
SG
2
2
PW TM
1 3 4
24 VAC MAX
RL
2
RL
2221
2
FD
1
FD
76
1
5
S
4
3C
1
2 A
DO NOT
CONNECT
POWER
HERE
DO NOT
CONNECT
POWER HERE

Page 18
3) Snow Melt with Floating Action Valve Mixing
Title
DRAWING TITLE
Notes:
This is not an engineered drawing and does not necessarily include all the components for an entire system. It is intended
as a representative sample of how the control may be wired for a sample application. It is the responsibility of the installer
to seek professional advice and/or install the the system to meet all necessary codes for the jurisdiction of the actual
installation.
Title
Valve DownValve UpBoiler Outdoor
Sensor
Return
Sensor
System
Sensor
Demand
Inp
(Optional)
ut
L
120 V AC
System Pump
Optical Sensor
N
FD
GREEN
RED
WHITE
BLACK
SHIELD
5 A 5 A
Central Processing Unit
SNO-0550
HBX
5 A
RL
1
RL
1817
1
RL
2
RL
2019
2
GR
120
16
N
L
1514
TM
32
11
TM TM
10 12 13
BL
1
BL
9
8
1
15
SG
2
2
PW TM
1 3 4
24 VAC MAX
RL
2
RL
2221
2
FD
1
FD
76
1
5
S
4
3C
1
2 A
DO NOT
CONNECT
POWER
HERE
DO NOT
CONNECT
POWER HERE
Snow Melt with Injection Mixing and Remote Slab Sensor