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IBC SKY-35 Installation & Operation Manual

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Installation &
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Controller for Multiple
Hydronic Heat Sources

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Summary of Contents for IBC SKY-35

  • Page 1 Installation & Operation Manual Controller for Multiple Hydronic Heat Sources...
  • Page 2 About this manual Thank you for your purchase of IBC's Sky-35 controller for multiple hydronic heat sources. Please keep this manual on site for reference. Chapters four through seven document the four tabs of the controller screen: 4 Home 5 Setup 6 Status 7 More.

  • Page 3: Table Of Contents

    Sequence of operation - heating with two heat pumps 3.0 Installation and Wiring 3.1 Location 3.2 Layout 3.3 Sky-35 Controller terminal functions and ratings 3.4 Pump Relay Module terminal functions and ratings 3.5 Connections to Pump Relay Module 3.6 RS-485 Connections 3.7 Ethernet Connections...
  • Page 4 7.2 Changing and updating date and time Date and time in a Sky-35 connected to the Internet Changing the date and time in a Sky-35 not connected to the Internet 7.3 Changing default units of measurement displayed on the controller's screens 7.4 Help...
  • Page 5 8.0 Best practices 8.1 Temperature sensors 8.2 Buffer Tank 8.3 Buffer tank sizing Quick calculation for buffer tank sizing 8.4 Using concrete slab as buffer 8.5 Reset heating 8.6 Set Point 8.7 Piping practices 9.0 System concept drawings Setting a target temperature 9.1 HPX heat pump with backup EBX electric boiler Wiring 9.2 HPX heat pump with backup CX combi boiler / water heater...
  • Page 6 Section: Contents Wiring 10.0 Start-up 10.1 Start-up checklist 11.0 Setup for Internet access 11.1 Connecting a Sky-35 controller to an IP network Set up access to the IBC Portal 12.0 Troubleshooting 12.1 Viewing errors 12.2 Clearing errors 12.3 List of touchscreen controller error messages 12.4 Backing up (exporting) error logs...

  • Page 7: Specifications

    1.0 Specifications Sky-35 Controller Specifications Rated Voltage / Frequency / Phase 24V / 60Hz / 1Ph Total Load (less pumps) 10VA / 0.42 A Weight 3.2 lb / 1.45 kg Max Fuse Size Minimum Ambient Temperature 32°F / 0°C Maximum Ambient Temperature 131°F / 55°C...

  • Page 8: Certifications / Etl Listings

    Section: Specifications 1.1 Certifications / ETL Listings The Sky-35 Controller conforms to UL STD 60730-1, and is certified to CSA STD E60730-1 FCC Notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation.

  • Page 9: Sky-35 Dimensions

    1.2 Sky-35 dimensions 1.2 Sky-35 dimensions Figure 1 Front view- Sky-35 Controller Figure 2 Side view- Sky-35 Controller Figure 3 Top view- Sky-35 Controller...

  • Page 10: Relay Module Dimensions

    Section: Specifications 1.3 Relay Module dimensions Figure 4 Front view - Pump Relay Module Figure 5 Side view- Pump Relay Module Figure 6 Top view - Pump Relay Module...

  • Page 11: Connection Specifications

    Control wiring knock-outs (7) 1/2" Table 4 Pump Relay Module Connections 1.5 Warranty IBC offers a 2-year warranty on all parts against defects in materials or workmanship. To view the warranty statement for the Sky-35 Controller, go to ibcboiler.com. Figure 7 IBC Warranties webpage...
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  • Page 13: Sky-35 Controller Overview

    Buffer tank monitoring with Summer Shutdown Always-on status display Easy-to-set Outdoor Reset control option Two-way communication with IBC Heat Pumps, Electric Boilers and V10 boiler controllers Dry contacts for control of third-party heat sources Easy Heat Source setup Supply, Return and Outdoor temperature sensors included...
  • Page 14 Section: Overview of the Sky-35 Controller...

  • Page 15: Who Is The Manual For

    2.4 Power-up sequence and operational states/cycles When the Sky-35 is first energized, some settings will already be populated with default values: you will probably wish to change (and Save) certain settings. Generally, saved values take effect with the next heating (or cooling) call.

  • Page 16: Multiple Heat Sources

    This will be either a fixed Setpoint or one determined by Outdoor Reset. The Sky-35 will begin running one heat pump. HPX heat output will be proportional to the degrees below target temperature. Heat pumps by other manufacturers may progress through a first and second level staging.
  • Page 17 Sequence of operation - heating with two heat pumps Figure 9 Sequence of operation: heating with two heat pumps A similar sequence of operation can be seen in this example of a CX gas-fired boiler / water heater backup for space-heating:...
  • Page 18 Section: Overview of the Sky-35 Controller Figure 10 Sequence of operation: heating with heat pump and combi boiler / water heater...
  • Page 19 Summer Shutdown, which is typically set around 19°C (66.2°F). While heating is active the Sky-35 directs a heat source or sources to maintain the buffer tank temperature. The reset heating range (or simple tank setpoint) and buffer tank differential values are entered directly into the Setup >...
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  • Page 21: Installation And Wiring

    Sensors connected to any sensor input contacts must be of the NTC Thermister type with a resistance of 10,000 ohms at 77°F (25°C) and β = 3892. We do not recommend using 3rd- party supplied sensors. Compatible water temperature sensors and outdoor sensors can be supplied by your IBC distributor.

  • Page 22: Layout

    Section: Installation and Wiring 3.2 Layout Figure 11 Sky-35 controller layout...

  • Page 23: Sky-35 Controller Terminal Functions And Ratings

    3.3 Sky-35 Controller terminal functions and ratings 3.3 Sky-35 Controller terminal functions and ratings Maximum Block Type Description Rating 24 VAC power to the Sky-35 controller AC IN Input 24 VAC from Pump Relay Module EMC / PSC Circulator Control; 12V - 150 mA;...
  • Page 24 Temperature Sensor POWER *Output Load Control 24 VAC / VDC; 5.0 A; Resistive. 24 VAC @ 24 VA; 1.0 A; 3.6 A Inrush; Pilot Table 6 Sky-35 Controller terminals and ratings Warning For all field wiring use copper conductors only.

  • Page 25: Pump Relay Module Terminal Functions And Ratings

    120 VAC for standard PSC I/O C 1/6 HP @ Output control 120 VAC* Neutral for standard PSC I/O C Output control Output 24 VAC power supply for Sky-35 SKY-35 POWER Controller BOTTOM Output PLUG GND to PWM signal from Sky-35 Ground (Blue) I/O A PLUG 12 VDC PWM signal from Sky-35...

  • Page 26: Connections To Pump Relay Module

    Section: Installation and Wiring 3.5 Connections to Pump Relay Module The accessory Pump Relay Module can supply 24 V power for the Sky-35 through the cable provided (part #200-199), as shown. If used, the Module must be mounted within cable length, at most 11 inches (28 cm), from the controller.

  • Page 27: Connections

    3.6 RS-485 Connections 3.6 RS-485 Connections An IBC Heat Pump connects to the Sky-35 through the RS-485 A/B connections on the Heat 1 (HP) terminal block. For multiple heat pumps the RS-485 A/B connections should be daisy chained. Figure 13 Daisy chain wiring...

  • Page 28: Ethernet Connections

    Section: Installation and Wiring 3.7 Ethernet Connections The Sky-35 controller can be connected through an ethernet cable to the Internet for remote monitoring, or to a IBC boiler's V10 Touchscreen controller. V10 controller must be running 2.01.6 or later. In V10 controller under Network Settings "Sky-35 comm"...

  • Page 29: Thermostats

    3.8 Thermostats Ethernet connections to IBC's AHU-series air handlers are not supported at the time of this printing. 3.8 Thermostats The controller is compatible with most common thermostats including simple single contact types (for example, a mercury switch). The standard connection for common thermostats provides a simple contact closure .

  • Page 30: Sensors

    Section: Installation and Wiring 3.9 Sensors The Sky-35 temperature sensor inputs are compatible with any 10K Ω NTC thermistor (also known as a 10K Type II NTC thermistor)with a beta value of 3895. Supply, Return and Outdoor temperature sensors are provided with the Sky-35. Kits for additional sensors such as the P-9073 temperature sensor are available from your IBC distributor.

  • Page 31: Load Pumps Or Valves

    You can wire up to six variable speed pumps to the terminals "Output A/B/C/D/E/F." In future software releases the Sky-35 will be able to use feedback from a pressure-activated variable speed pump to recognize an active heating load; it will also be able to recognized a non-responsive variable speed pump and raise an alarm.
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  • Page 33: The Home Screen

    Home screen.) You can see further data from any IBC Heat Source by touching its icon on the Home screen. The top banner reads on the left Sky-35 and, if the Web Portal has been enabled, on the right shows a cloud icon which by its colour indicates the Portal connectivity state.

  • Page 34: Service Status

    Certain changes, such as adding or removing a heat source, or a software update, might produce erratic operation if performed in the midst of normal operation. To prevent this, the Sky-35 sometimes imposes a temporary pause to operation in order to apply changes safely. This is...

  • Page 35: The Setup Screen

    5.0 The Setup screen Figure 17 Setup icon The Setup tab is used for all of the basic setup of the controller. Changes to settings can be made at any time. Figure 18 Setup menu 5.1 Heat Sources While Adding or Removing heat sources the controller ignores calls for heat, and in the bottom banner displays Service mode.

  • Page 36: Add Heat Source

    Sky-35 will provide the target temperatures. The V10 will give priority to its own locally-programmed loads (if any). The Sky-35 presumes that the V10 will run its boiler pump during a call for heat; future software releases will introduce further pump control options.

  • Page 37: Site Settings

    5.3 Site Settings Figure 19 Pump naming keypad To associate a pump with a heat source, see the Heat Source menu. 5.3 Site Settings Most of your setup decisions will be recorded in the Site Settings menu. The following table is also reproduced in Appendix C: Installer log for Site Settings on page 97 with an additional column for...
  • Page 38 Section: Sky-35 Setup Tab Options and Ranges Name Notes (Defaults in bold) Heating Mode Heating Only, Cooling Only, Heating / Cooling, Off Heating Target Min: 30°C (86°F) Max: 85°C (185°F) Default: 43°C (109.5°F) Reset Heating 0 - Off 1 - On...

  • Page 39: Some Notable Settings, Options And Terms

    Heating Target: when the Buffer Tank mode is Enabled, this temperature will be the Buffer tank target temperature. The Sky-35 will apply a slight boost to the heat source target temperature so that the Buffer target may be satisfied. Buffer Tank Differential: The Sky-35 manages the buffer tank temperature by activating a call for heat when the tank drops below the target temperature by one-half the Differential, and it ends the heating call when the tank exceeds target by one-half the Differential.

  • Page 40: Buffer Tank

    If the call for heat is not active, the primary heat source is left on its own to bring the tank up to temperature. If there is no thermostat connection to the Sky-35, the backup heat source will activate only if the outside temperature is below the setting Balance Point, or the primary heat source is in error.

  • Page 41: The Status Screen

    6.0 The Status screen Figure 20 Status icon The Status menu displays the following options that enable you to survey the system and confirm proper operation or identify problems: Pump Status Sensors Network Information Error Logs Heat Call Map (incoming and outgoing calls) Clear Errors Source Status System Information...

  • Page 42: Pump Status

    MODbus address, which will be useful if there are multiple such models connected to the Sky-35. Heat source errors appear in the Sky-35 Error log but not in the bottom banner; while they're active they also appear as the heat source status.

  • Page 43: Delete All

    The status of any connected heat source is displayed under its icon: Standby, Heating, Cooling, Circulating, Dev Error (in the heat source), Searching (Sky-35 is looking for the device), Init Error (Sky-35 could not initially connect to the device), Comm Warn, and Comm Error.

  • Page 44: System Information

    Section: Sky-35 Status Tab Select the icon of an IBC heat source in this menu (or on the home screen) to read its status information on the Sky-35. If the first line State reads Com Err the status information is not currently available and default values may be displayed.

  • Page 45: The More Screen

    7.0 The More screen Figure 22 More icon When you select the More menu, you will be provided with options that enable you to configure the Sky-35. User Settings Help Network Settings Factory Reset Software Update Engineering Options Service Mode Figure 23 More screen 7.1 User Settings...

  • Page 46: Changing And Updating Date And Time

    Date and time in a Sky-35 connected to the Internet If the Sky-35 is connected to the Internet or to a computer (e.g., a server set up on an internal network that acts as the NTP time source), it will automatically set its internal clock. This is called SNTP mode;...

  • Page 47: Help

    Alternatively, see the contact information for IBC Technical Support on the back cover. 7.5 Network Settings One purpose of the Network Settings page is to prepare a Sky-35 for connection to a V-10 boiler controller. In the menu Mode: DHCP The typical installation, where a Sky-35 connects to a V10 controller by using an active internet connection to assign IP addresses to the two devices.

  • Page 48: Software Update

    Section: Sky-35 More Tab 7.7 Software Update This section describes the ways in which you can perform an firmware update in a Sky-35. When you install firmware updates, the system checks if the Sky-35 has the latest firmware version. To view the firmware in a Sky-35, on the controller, go to Status >...

  • Page 49: Engineering Options

    7.8 Engineering Options 1. Download the software to your computer. Unzip the file. a. Scan the QR code below, or go to IBC Technical Information pages and select the tab Software Updates. Scroll to Sky-35 Controller and select the tile Download Sky-35 software update to a USB.

  • Page 50: Service Mode

    Section: Sky-35 More Tab 7.9 Service Mode If you wish to pause system operation, for example to perform maintenance, settings adjustment or software update, toggle Service Mode to On.

  • Page 51: Best Practices

    8.0 Best practices 8.1 Temperature sensors The supply and return temperature sensors furnished with your Sky-35 fit standard immersion wells with a 3/8" [9.5mm] internal diameter. For accuracy ensure that the well bottom is within flowing liquid. Note If surface-mounting the temperature sensors (on metallic piping only), insulate the sensor, e.g.

  • Page 52: Quick Calculation For Buffer Tank Sizing

    Section: Best practices V= minimum volume of buffer tank (US gallons) t = desired minimum cycle time; IBC recommends 8 (minutes) for a variable compressor Q = heat source output rate, i.e. minimum warm-weather output (Btu/h) q = minimum guaranteed rate of heat extraction from tank: may be zero (Btu/h) ΔT = tank differential;...

  • Page 53: Using Concrete Slab As Buffer

    (ft t = desired duration of heat source’s on cycle; IBC recommends 8 (minutes) Q = heat source output rate, i.e. minimum output during warm weather (Btu/h) q = guaranteed rate of heat extraction from slab: may be zero (Btu/h) 147 = constant based on heat capacity of concrete and units used: (29.4 Btu/ft...

  • Page 54: Reset Heating

    Section: Best practices 8.5 Reset heating The heat lost by a building is proportional to the temperature difference between inside and outside. You can similarly scale the heat put into the building by using a Reset heating line. As the weather warms, reset heating preserves comfort by using cooler water, which is also particularly important for boosting heat pump efficiency.
  • Page 55 80°C To set Heat Type Reset you need just two variables: Setpoint T for the hottest water and Outdoor Design T for the local climate's winter temperature. Contact IBC Tech Support if you are uncertain of your local Design Outdoor Temperature.

  • Page 56: Set Point

    Summer shutdown° - The cut-off temperature level that prevents further heating. Sky-35 ignores a call for heat. These targets might apply to a heat source or to a buffer tank. When for a buffer tank, the Sky-35 also applies a small boost to communicating IBC heat source targets.

  • Page 57: System Concept Drawings

    Note on connections to Sky-35 These drawings show multiple connections to the Sky-35, representing sensors that must be present such as Supply Temp., Return Temp., and optional connections such as for Outdoor Sensor, Buffer Tank Sensor, and various circulators.

  • Page 58: Hpx Heat Pump With Backup Ebx Electric Boiler

    Figure 28 Concept drawing: heat pump with backup electric boiler Even if the Sky-35 does not control the system pump, the zone valve endswitches shown (or thermostat) facilitate backup heat logic because the backup heat source should run only during an...

  • Page 59: Wiring

    Wiring Programming (see also Setting a target temperature on page HEAT SOURCES NOTES Add Heat Source Follow prompts for IBC Heat Pump Add pump A, rename e.g. HPX-p Pump in drawings Follow prompts for IBC Electric Boiler SITE SETTINGS E.g. 10 minutes Minimum Cycle Time E.g.

  • Page 60: Hpx Heat Pump With Backup Cx Combi Boiler / Water Heater

    Closely-spaced tees Return temp sensor to Sky-35 IBC CX gas combi boiler Figure 29 Concept drawing: IBC HPX Heat pump with backup CX gas combi boiler / water heater Setup note: V10 controller must be running 2.01.6 or later. See Ethernet Connections on page...

  • Page 61: Wiring

    Wiring Programming (see also Setting a target temperature on page HEAT SOURCES NOTES Add Heat Source Follow prompts for IBC Heat Pump Add pump A, rename e.g. "Cndsr" or Pump in drawings "HPX-p" Follow prompts for IBC Gas Boiler SITE SETTINGS E.g.

  • Page 62: Hpx Heat Pump, Sl Boiler With Indirect Dhw

    Section: System concept drawings 9.3 HPX heat pump, SL boiler with indirect DHW HPX-series heat pump (outdoors) DCW to indirect tank Sky-35 and Pump Relay Module DHW from indirect tank Check valves (3) System circulator Heat pump circulator Supply sensor to Sky-35...

  • Page 63: Wiring

    Wiring Programming (see also Setting a target temperature on page HEAT SOURCES NOTES Add Heat Source Follow prompts for IBC Heat Pump Add pump A, rename e.g. HPX-p Pump in drawings Follow prompts for IBC Gas Boiler SITE SETTINGS E.g. 10 minutes Minimum Cycle Time E.g.

  • Page 64: Hpx Heat Pump With Backup Sfc (Or Generic) Gas Combi Boiler / Water Heater

    Section: System concept drawings 9.4 HPX heat pump with backup SFC (or generic) gas combi boiler / water heater HPX Heat pump (outdoors) Domestic cold water Sky-35 and Pump Relay Module Domestic hot water (DHW) Check valves System (distribution) circulator Heat pump circulator...

  • Page 65: Wiring

    Programming (see also Setting a target temperature on page HEAT SOURCES NOTES Add Heat Source Follow prompts for IBC Heat Pump Add pump A, rename e.g. HPX-p Pump in drawings Follow prompts for IBC SF series Set target temp approx. 5°F higher...

  • Page 66: Multiple Hpx Heat Pumps With Buffer Tank

    Recommended expansion tank Returns from loads connection point Buffer tank (with sensor reporting to Sky-35); use short fat headers. Vacuum breaker needed for cooling mode. Figure 32 Concept drawing: multiple IBC heat pumps Heat pumps alternate as lead with each cycle. Space-heating zone pump(s) can operate separately (as shown) controlled by zone / pump module, pressure-activated, or in constant circulation during heating season.

  • Page 67: Wiring

    Programming (see also Setting a target temperature on page HEAT SOURCES NOTES Add Heat Source Follow prompts for IBC Heat Pump Add pump A, rename e.g. HP1-p Add pump B, rename e.g. HP2-p SITE SETTINGS E.g. 10 minutes Minimum Cycle Time E.g.

  • Page 68: Multiple Hpx Heat Pumps With Concrete Slab

    Using concrete slab as buffer on page IBC Heat Pumps Supply sensor to Sky-35 Heat pump circulators controlled by Return sensor to Sky-35 Sky-35 controller Glycol fill tank (shown) System Pump...

  • Page 69: Wiring

    Programming (see also Setting a target temperature on page HEAT SOURCES NOTES Add Heat Source Follow prompts for IBC Heat Pump Add pump A, rename e.g. HP1-p Repeat Add for second HPX Add pump B, rename e.g. HP2-p SITE SETTINGS Sys-Pump H Select C.

  • Page 70: Hpx Heat Pump With Backup Gas Cx Combi Boiler / Water Heater Serving Concrete Slab

    Using concrete slab as buffer on page HPX Heat pump (outdoors) Domestic cold and hot water connections Pump Relay Module and Sky-35 Hydraulic separator IBC CX gas combi boiler with V10 Supply temp sensor to Sky-35 controller Heat pump circulator Return temp sensor to Sky-35...

  • Page 71: Wiring

    Wiring Programming (see also Setting a target temperature on page HEAT SOURCES NOTES Add Heat Source Follow prompts for IBC Heat Pump Add pump A, rename e.g. "Cdnsr" or Pump in drawings "HPX-p" Follow prompts for IBC Gas Boiler SITE SETTINGS E.g.

  • Page 72: Hpx Heat Pump With Cooling And Backup Ebx Electric Boiler

    Caution: potential property damage All cooling applications require thorough insulation of chilled water piping and fittings. IBC HPX-series heat pump Closely-spaced tees Sky-35 and Pump Relay Module System (distribution) circulator EBX electric boiler with integral pump Supply sensor to Sky-35 Check valves (3)

  • Page 73: Wiring

    Wiring Wiring Programming (see also Setting a target temperature on page HEAT SOURCES NOTES Add Heat Source Follow prompts for IBC Heat Pump Add pump A, rename e.g. Buffr Pump in drawings Add pump C, rename e.g. Cool Pump in drawings...

  • Page 74: Hpx Heat Pump With Concrete Slab And Indirect Dhw Tank

    Best practices on page IBC Heat Pump Return sensor Pump Relay Module and Sky-35 Check valves (2) Domestic cold and hot water Glycol fill tank (shown), or fill station with connections isolation closed...

  • Page 75: Wiring

    Wiring Wiring Programming (see also Setting a target temperature on page HEAT SOURCES NOTES Add Heat Source Follow prompts for IBC Heat Pump Add pump A, rename e.g. Pump in drawings HPX-p Follow prompts for IBC Electric Boiler SITE SETTINGS E.g. 10 minutes Minimum Cycle Time E.g.

  • Page 76: Hpx Heat Pump With Direct / Buffer Mode Electric Boiler

    9.10 HPX heat pump with direct / buffer mode electric boiler Upcoming feature This diverting valve application not supported by original software. IBC HPX-series heat pump Buffer tank Pump Relay Module and Sky-35 Closely-spaced tees Heat pump circulator System (distribution) circulator Glycol fill tank Supply sensor to Sky-35...

  • Page 77: Wiring

    Wiring Programming (see also Setting a target temperature on page HEAT SOURCES NOTES Add Heat Source Follow prompts for IBC Heat Pump Add pump A, rename e.g. HPX- Pump in drawings Follow prompts for IBC Electric Boiler SITE SETTINGS E.g. 10 minutes Minimum Cycle Time E.g.

  • Page 78: Generic Heat Pump With Buffer Tank, Cooling And Backup Ebx Electric Boiler

    Caution: potential property damage All cooling applications require thorough insulation of all chilled water piping and fittings. Generic heat pump Closely-spaced tees Sky-35 and Pump Relay Module System (distribution) circulator [relay 2] IBC EBX-series electric boiler (with Supply sensor to Sky-35...

  • Page 79: Wiring

    NOTES Add Heat Source Follow prompts for Other / Heat Pump Add pump A, rename e.g. HPpmp Pump in drawings Follow prompts for IBC Electric Boiler SITE SETTINGS E.g. 10 minutes Minimum Cycle Time E.g. 12 minutes Check HP and A/C units for a built-in...

  • Page 80: Hpx Heat Pump With Air Handler

    9.12 HPX heat pump with air handler IBC Heat Pump Supply sensor to Sky-35 Outdoor sensor located on north face Return sensor to Sky-35 of building Pump Relay Module and Sky-35 Air handling unit circulator, controlled by Heat pump circulator controlled by IBC AHU air handler Sky-35 Buffer tank...

  • Page 81: Wiring

    Wiring Wiring Programming (see also Setting a target temperature on page HEAT SOURCES NOTES Add Heat Source Follow prompts for IBC Heat Pump Add pump A, rename e.g. HPX-p Pump in drawings SITE SETTINGS E.g. 10 minutes Minimum Cycle Time E.g. 0 minutes HPX has a built-in 4 min.
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  • Page 83: Start-Up

    For a heat source to fire, it needs an "enabler" such as a zone valve end switch, thermostat, or a buffer tank temperature sensor. When a Sky-35 controller is first energized, it runs through a power-up sequence that takes approximately one minute. During this time, the controller completes a self-diagnostic, and loads all previous settings.
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  • Page 85: Setup For Internet Access

    11.0 Setup for Internet access 11.0 Setup for Internet access At a site, you can set up internet access to enable you to monitor and edit one or more Sky-35 controllers remotely through IBC’s Portal. To set up remote access to a Sky-35 via the V10 portal, you must connect a controller to an IP network (see instructions below).

  • Page 86: Set Up Access To The Ibc Portal

    Set up access to the IBC Portal Now that you have set up the Sky-35’s connection to an IP network, you can register the Sky- 35 via the Portal to enable you or another representative to monitor operation for a particular Sky-35.
  • Page 87 Set up access to the IBC Portal 3. In the Password box, enter the password. 4. Select the Login button. You can change your password by going to the Welcome drop-down list>Profile.
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  • Page 89: Troubleshooting

    The Error Log page lists two kinds of errors:  those relayed from IBC Heat Sources and those specific to the Sky-35. An error relayed from a heat has is tagged by the model, e.g. Error 2: EBX 32 (see the example to the right). A suffix number (if present) is only the MODbus address, which will be useful if...
  • Page 90 Software update Contact Tech Support Check ethernet connection. Check presence of network switch IP Network Fault Power cycle Sky-35 and/or network switch Reset router (if used) Software fault or bad data from connected device. RTOS Fault Reset to the system defaults...

  • Page 91: Backing Up (Exporting) Error Logs

    12.4 Backing up (exporting) error logs You may need to back up an error log onto a USB stick to send to IBC's Technical Support team for troubleshooting. 1. To back up an error log, go to >...
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  • Page 93: Appendices

    13.0 Appendices 13.0 Appendices Appendix A: Controller Board Layout Figure 41 Controller board layout...

  • Page 94: Appendix B: Board Layouts For Related Ibc Products

    Section: Appendices Appendix B: Board layouts for related IBC products Figure 42 Relay Module layout Figure 43 Air handler unit (AHU) board layout...
  • Page 95 Appendix B: Board layouts for related IBC products Figure 44 HPX heat pump board layout...
  • Page 96 Section: Appendices Figure 45 EBX electric boiler board layout...

  • Page 97: Appendix C: Installer Log For Site Settings

    Appendix C: Installer log for Site Settings Appendix C: Installer log for Site Settings Site Name:__________________ Setup Date:___________ Revision Date: ____________ Options, Ranges and IBC Notes Notes Name Defaults Heating Only, Cooling Heating Mode Only,Heating / Cooling, Off Min: 30°C (86°F) Max: 85°C Heating Target (185°F) Default: 43°C...

  • Page 98: Accessories

    Installer site settings log Accessories Tridicator (Temperature and Pressure gauge, 100 psi, 1/4" NPT connection)  P-9014 P-2000 Sky-35 Controller Board Replacement P-2001 Sky-35 Pump Relay Board Replacement Sky-35 Power Transformer P-2002 Sky-35 Power Cable P-2003 Sky-35 Pump Control Cable P-2004...

  • Page 99: Temperature Conversions

    Temperature conversions Temperature Conversions Temperature differences: ΔT°C = 5/9 * (ΔT°F) ΔT°F = 9/5 * (ΔT°C)
  • Page 100 Toll Free: 1-844-HEAT-IBC / 1-844-432-8422 www.ibcboiler.com Information in this document is subject to change without notice. IBC assumes no responsibility for changes made to the manual due to clerical errors, to regulation changes, or to product development. May 03, 2024 120-542E1 ©...

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