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H B X   S N O - 0 5 5 0   S n o w   M e l t   C o n t r o l

V e r s i o n   2 . 1 4 . 1

© HBX Control Systems Inc. 2020

Page 19

ISSUE

POSSIBLE CAUSES & RESOLUTIONS

Cracked sensor

•  Improper drainage 

(see pg. 6 SNO-0110 manual. )

•  Improper Installation – too much tension on screw tightening, 

hammering sensor into socket.

•  Resolution

: Replace Sensor

Not melting any snow

•  Sensors not connected (supply, return, outdoor)
•  Damaged sensor: check sensor for cracks or deformations
•  Incorrect settings: Idle temperature is set incorrect, Melt temp 

is set incorrect, melt time is set incorrect, one or more design 

temperatures set incorrect. 

(refer to page 10.)

•  Demand type: set to Standby/Idle or no demand is present
•  Doesn’t read slab temperature (sensor)
•  Improper wiring 

(see page 20.)

•  Sensor location in slab setup is set incorrectly. 

(See page 10.)

•  Improper sensor physical location 

Residual snow is present after 

demand is not present

•  Max temperature is too low and WWSD is set too high
•  Melt time is set too low. 

Resolution

: Increase time.

Slab temperature Error

•  Incorrect wiring (Shield wire not connected) 

(See page 20. )

•  Heater has not reached operating temperature. Wait for at least 1 

hour after installation.

•  Sensor location in slab setup is set incorrectly. 

(See page 10.)

•  Damaged sensor: check for cracks or deformations

Doesn’t detect snow

•  Damaged sensor: check for cracks or deformations
•  Improper wiring. See page 19 or see SNO-0110 troubleshooting 

section in manual.

•  Sensor location in slab setup is set incorrectly. 

(See page 10.)

•  Snow rate setup is set too high. 

(See page 8.)

•  No demand is present. 

(See page 11.)

•  WWSD is set too low. 

(See page 9.)

•  CWSD is set too high. 

(See page 9.)

Display Screen is Involuntary 

Switching

•  Display button is stuck

Display Screen is Flickering

•  Up/down/enter button  is stuck

Control does not power up

•  Check power supply (120V)
•  Damaged PCB. 

Resolution

: contact HBX Technical Support.

SNO-0550 TROUBLESHOOTING GUIDE

Summary of Contents for SNO-0550

Page 1: ...HBX Control Systems Inc Installation Manual Snow Melt Unit 0550 Version 2 14 1 SNO 0550 ...

Page 2: ...s 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 A...

Page 3: ...amage to components or equipment Point of Interest This point clarifies pertinent information or brings your attention to an action that may have adverse effects on the installation process Drawing Reference Refer to the specified electrical or mechanical drawing at the back of the manual Only suitably qualified individuals with formal training in electrical and Hydronic controls should attempt th...

Page 4: ...ts 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 fea...

Page 5: ...s 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 ...

Page 6: ... 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 18 17 1 5 A RL 2 RL 20 19 2 GR 120 16 N L 15 14 TM 3 2 11 TM TM 10 12 13 BL 1 BL 9 8 1 1 5 SG 2 2 PW TM 1 3 4 5 A RL 2 RL 22 21 2 FD 1 FD 7 6 1 5 S 4 3 C 1 2 A 5 A 5 A Central P...

Page 7: ... 1 5 SG 2 2 PW TM 1 3 4 5 A RL 2 RL 22 21 2 FD 1 FD 7 6 1 5 S 4 3 C 1 2 A 5 A 5 A Central Processing Unit SNO 0550 HBX 5 A RL 1 RL 18 17 1 RL 2 RL 20 19 2 GR 120 16 N L 15 14 TM 3 2 11 TM TM 10 12 13 BL 1 BL 9 8 1 1 5 SG 2 2 PW TM 1 3 4 24 VAC MAX RL 2 RL 22 21 2 FD 1 FD 7 6 1 5 S 4 3 C 1 2 A DO NOT CONNECT POWER HERE DO NOT CONNECT POWER HERE SENSOR ERRORS HTR LOWC Low current is being drawn into...

Page 8: ... 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 D...

Page 9: ... 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 bu...

Page 10: ...W 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 s...

Page 11: ...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 ...

Page 12: ... 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 ME...

Page 13: ...CTION 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 ...

Page 14: ...ST 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 ...

Page 15: ...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 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 PASSW...

Page 16: ... 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 th...

Page 17: ...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 SN...

Page 18: ...mand 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 sn...

Page 19: ... Optical Sensor N FD GREEN RED WHITE BLACK SHIELD 5 A 5 A Central Processing Unit SNO 0550 HBX 5 A RL 1 RL 18 17 1 RL 2 RL 20 19 2 GR 120 16 N L 15 14 TM 3 2 11 TM TM 10 12 13 BL 1 BL 9 8 1 1 5 SG 2 2 PWTM 1 3 4 24 VAC MAX RL 2 RL 22 21 2 FD 1 FD 7 6 1 5 S 4 3 C 1 2 A DO NOT CONNECT POWER HERE DO NOT CONNECT POWER HERE Optical Sensor Slab Sensor GREEN RED BLACK Title neered drawing and does not ne...

Page 20: ...ssary codes for the jurisdiction of the actual Title Valve Down Valve Up Boiler 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 18 17 1 RL 2 RL 20 19 2 GR 120 16 N L 15 14 TM 3 2 11 TM TM 10 12 13 BL 1 BL 9 8 1 1 5 SG 2 2 PWTM 1 3 4 24 VAC MAX RL 2 RL 2...

Page 21: ...ual snow is present after demand is not present Max temperature is too low and WWSD is set too high Melt time is set too low Resolution Increase time Slab temperature Error Incorrect wiring Shield wire not connected See page 20 Heater has not reached operating temperature Wait for at least 1 hour after installation Sensor location in slab setup is set incorrectly See page 10 Damaged sensor check f...

Page 22: ...esent See page 11 Demand is set to Standby Idle or Anticipate See page 11 Force Demand Melt Mode not working Demand is not in Force Demand Melt See page 11 System Pump Not Working Check Wiring see page 20 Boiler is not working Check wiring See page 20 Check system design temperatures See page 9 Slab Temp changes drastically when it comes in or out of WWSD CWSD The optical sensor has a built in hea...

Page 23: ... WWSD Put some water or snow on the sensor and move it around with your hand or a cloth for about 30 seconds to 1 minute This will trigger a Melt and the control will go through the Melt cycle II Control Info acceptable parameters for the SNO 0110 Optical Sensor Control Info is found in the TESTING menu Type Acceptable Parameters Voltage 11 15 VDC Current 0 585 0 599 A Resistance 19 24 OHMS SENSOR...

Page 24: ...sers sole remedy shall be at HBX s option repair or replacement The foregoing warranties and remedies are exclusive and in lieu of all other warranties expressed or implied either in fact or by operation of law statutory or otherwise including warranties of merchantability and fitness for a particular purpose application HBX neither assumes nor authorizes any other person to assume for it any othe...

Page 25: ...H B X S N O 0 5 5 0 S n o w M e l t C o n t r o l V e r s i o n 2 1 4 1 HBX Control Systems Inc 2020 Page 23 Notes ...

Page 26: ...H B X S N O 0 5 5 0 S n o w M e l t C o n t r o l V e r s i o n 2 1 4 1 Page 24 Notes ...

Page 27: ...H B X S N O 0 5 5 0 S n o w M e l t C o n t r o l V e r s i o n 2 1 4 1 HBX Control Systems Inc 2020 Page 25 Notes ...

Page 28: ...tems Inc 2020 Toll Free Technical Support 1 855 410 2341 Phone 1 403 720 0029 Fax 1 403 720 0054 Email info hbxcontrols com Web www hbxcontrols com HBX Control Systems Inc 4516 112th Avenue SE Calgary AB Canada T2C 2K2 ...

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