Frequently Asked Questions

Frequently Asked Questions

General Questions

  1. Q Display does not come on.
         A Check power connection at terminals 17,18,19. If no power (120VAC) present then trace power back to source. Cycle power to Control.

  2. Q No heat demand.
         A Check that you have at least 20VAC being supplied to the heat demand trigger. E.g. power to terminals 1&2 for a heat demand to follow the outdoor reset curve. Power to terminals 3&4 for a Hi temp heat demand and power to terminals 5&6 are for a DHW demand.

  3. Q Injection not working.
         A Make sure that in the mixing settings you have selected the appropriate device you are using to mix with. If it is PMIp then your connection should be attached to 26 to 28 and if it is PMIv then connect the valve to 15,16.

  4. Q Buttons do not respond or cannot go into Programming Mode.
         A Hold down buttons C and D to unlock the buttons. Hold until display says BUTTONS UNLOCKED.

  5. Q Parameters set in control do not seem to be taking effect.
         A Manually Reset Control by using a small blunt tool and gently press the reset button.

  6. Q Boilers not staging on.
         A Make sure in the boiler options that you have selected the appropriate amount of stages for the system.

  7. Q Domestic Hot water demand not coming on.
         A Make sure if you are using a Thermistor that it is hooked to terminals 9&10 on a staging control or have your aquastat attached to terminals 5&6 with power.

  8. Q Lack of Heat or no response to a heat demand.
         A Control may be in Warm Weather Shut Down mode, see “System Status” display. Is the acronym “WWSD” visible? If yes, check in “Change Designs” menu under WWSD, factory default is 75ºF. Adjust accordingly to your own design parameters. Remember to check and install your Outside temperature sensor away from direct sun or potential heat sources etc.

  9. Q Cannot select more than 4 Boilers in Staging Options.
         A If you are using the DHW control type the maximum # of boiler stages is limited to 4. Staging and Mixing control types will allow you to program up to a maximum of 14 stages but please note you must have the corresponding number of Expansion Modules to effectively accomplish this.

  10. Q No Boiler Heat Demand when Zone Module has a call for Heat.
         A Make sure you program ‘Use Zone Module’ to ‘Y’ in Control Options. Zone Modules are currently under development.

  11. Q Can I use the HBX Controls with a BMS System?
         A answer will go here

  12. Q Are the HBX controls BACnet or LonWorks compatible?
         A answer will go here

  13. Q What communication protocols can your control accept?
         A answer will go here

  14. Q What are the benefits to your controls being direct wired?
         A answer will go here

  15. Q Will my HBX controls lose memory when unplugged it or in case of power outages?
         A answer will go here

  16. Q My screen is showing garbled characters; what should I do?
         A answer will go here

  17. Q Why won’t my lead injection pump ever shut down?
         A answer will go here

  18. Q I have no flow in the primary loop when the injection system is running?
         A answer will go here

  19. Q Who should I contact for pricing and inventory?
         A answer will go here

  20. Q Who do I call for technical support?
         A answer will go here

  21. Q Do your controls have remote communication capabilities; how does it work?
         A answer will go here

  22. Q Can I tie in all my thermostats for muti-zone applications?
         A answer will go here

  23. Q Do I need to hook up the outdoor sensor for the Hydrobloc?
         A answer will go here

  24. Q Do I need to hook up my boiler sensor when using the Hydrobloc?
         A answer will go here

  25. Q Can your controls stage on the chillers, along with lead/lag operation; also bringing the boiler on when needed to maintain my delta t at the chillers?
         A answer will go here

  26. Q Your manual explains you can modulate up to 5 modulating boiler in total.  What if I have 6 or more? Is there a solution?
         A answer will go here

  27. Q Can I run Chillers; what control would I use?
         A answer will go here

  28. Q What will I need to run a snowmelt system?
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  29. Q How does your optical snowmelt system work?
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  30. Q What should I do if I have a defective unit?
         A answer will go here

  31. Q Cannot download Designer software, what should I do? 
         A answer will go here

  32. Q Can I use your controls to run wood boilers?
         A answer will go here

  33. Q Can I  use your controls for steam boilers?
         A answer will go here