IBC SFC User manual

CONTROLLER MANUAL
www.ibcboiler.com
SFC/SFB Controller
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CONTROLLER MANUAL – SFC/SFB SERIES BOILERS
SAFETY CONSIDERATIONS
Installation, start-up and servicing of IBC boilers must be done with due
care and attention, and should only be performed by competent, qualied,
licensed and trained heating technicians. Failure to read and comply with
all instructions and applicable National and local codes may result in
hazardous conditions that could result in property damage and injury to
occupants which in extreme cases might result in death.
HAZARDS & PRECAUTIONS
WARNING
If the information in this
manual is not followed
exactly, a re or explosion
may result causing property
damage, personal injury, or
loss of life.
WARNING
Points out a potentially
hazardous situation which
must be avoided to prevent
serious injury or death.
CAUTION
Points out a potentially
hazardous situation which
must be avoided to prevent
possible moderate injury and/
or property damage
NOTE
Points out installation,
maintenance and operation
details that will result in
enhanced efciency, longevity
and proper operation of your
boiler.
DANGER
Points out an immediately
hazardous situation which
must be avoided in order to
prevent serious injury or
death.
BEST PRACTICES
Points out recommendations
for better installation.

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Contents
BOILER CONTROL OPERATION ................................1-1
INTERFACE INDICATORS/BUTTONS.....................................1-1
MAIN MENU .......................................................1-2
Accessing the Main menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
Operational modes ................................................1-3
USAGE ..............................................1-5
ADJUSTING THE SPACE HEATING WATER TEMPERATURE .................1-5
ADJUSTING THE DHW TEMPERATURE ..................................1-6
CHECKING THE DHW FLOW ...........................................1-7
ADJUSTING THE DHW MODES .........................................1-7
ACCESSING THE SERVICE MENU ......................................1-8
Testing the unit ring rate .............................................1-9
ACCESSING THE INFORMATION MENU .................................1-10
ACCESSING INSTALLER MENU TO CHANGE CONTROLLER PARAMETERS ...1-11
REMOVING & WIRING THE CONTROLLER ......................1-17
REMOVING THE CONTROLLER........................................1-17
WIRING THE CONTROLLER...........................................1-18
120VAC Line Voltage Hook-up ..........................................1-18
SEQUENCE OF OPERATION ..........................................1-19
TROUBLESHOOTING .......................................1-21
WARNING CODES .................................................1-21

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BURN
HOT
DANGER
° Water temperture over 125°F (52°C) can cause severe burns instantly
or death from scalds.
° Children, disabled, and elderly are at highest risk of being scalded.
° See instruction manual before setting temperature at boiler.
° Feel water before bathing or showering.
° Temperature limiting valves are available, see manual.
WARNING
CAUTION
WATER HEATER INSTALLATION GUIDELINES
ADJUSTABLE TEMPERATURE SETTING
°Hotter water increases the risk of scald injury. Before changing the temperature setting, see
instruction manual.
°This boiler must be installed in accordance with local codes, if any; if not follow the National
Fuel Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas and Propane Installation Code,
CAN/CSA B149.1, as applicable.
°Failure to correctly install and operate this appliance can result in severe personal injury
or death.
°The water heater shall have a pressure relief valve installed within 6” [152mm] of the DHW HOT
outlet connection.
Refer to the Boiler User’s Manual before operating relief valve.
°The water heater requires a pressure relief valve identified with the ASME V or HV symbol and
set to relieve at or below 150psi of domestic water pressure and a minimum relieving capacity
of 199,000 Btu/hr with 3/4” NPT threads. For safe operation of the water heater, the relief valve
must not be removed from its designated point of installation or plugged.
°For complete information refer to installation manual.
°Read and follow warnings and instructions.
°Touch the panel above the White Dot twice, then touch the Tap . Adjust the water temperature
with the Plus + and Minus – then touch the Return button to save the changes.

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CONTROLLER MANUAL – SFC/SFB SERIES BOILERS
BOILER CONTROL OPERATION
The boiler’s control functions as an interactive touch-sensitive panel with buttons
that light up, showing indicators such as numbers, icons, or lettters. Some of
these lit indicators signify boiler operational status. Other indicators enable you to
program the boiler.
INTERFACE INDICATORS/BUTTONS
ICON FUNCTION
ANumerical Display Main Display
BPlus & Minus Temperature Adjustment
CFlame Burner ON Indicator
DDot Power ON Indicator
ETap Domestic Hot Water Indicator
FRadiator Space Heating Indicator
GWrench Service / Reset
HReturn Arrow Enter / Save
INumerical Display Service Display
Table 1: Controller Indicators and Touch Pad
NOTE
Use only ngers when
operating the boiler control.

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MAIN MENU
Main menu is a top-level menu, through which you can access other (sub)
menus. These menus can be accessed by touching a button or a combination of
buttons on the touchscreen panel. The sub menus include the:
• Space Heating menu
Use to adjust the target temperature for space heating.
• Domestic Hot Water (DHW) menu
Use to adjust the DHW temperature and check the DHW ow.
• Information menu
Use to view sensor readings and other operating conditions.
• Service menu
Use to view service information access the Installer menu to change
parameters. In this menu, you can view service information and regulate the
ring rate for the commissioning setup of the gas valve.
ACCESSING THE MAIN MENU
To access the Main menu, press the area above the Dot.
If buttons remain untouched in the Main menu (show below) for a minute, the
previous display is returned.
In the Main Menu the controller displays:
• The Dot.
• The Faucet button. Touch to access the DHW menu.
• The Radiator button. Touch to access the Space Heating menu.
• The Wrench button. Touch to access the Service menu.
• The time, if the clock is activated.

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CONTROLLER MANUAL – SFC/SFB SERIES BOILERS
OPERATIONAL MODES
Below are various operational modes:
The unit is switched off. The unit is connected to power but has been turned off.
In this mode, the display view shows:
• The Dot.
• The pressure in the boiler loop on the left display.
• A line in the right display.
The unit is switched on and is ready for a heat demand. The unit is turned on
and is ready to respond to a request for domestic hot water or space heating. In
this mode, the display view shows the Dot.
The unit is in operation and is supplying domestic hot water. The unit is running
on a domestic hot water call. In this mode, the display view shows the:
• Dot.
• Flame. The burner is switched on.
• Faucet symbol.
The unit is in operation and is supplying space heating water. The unit is running
on a space heating call. In this mode, the display view shows the:
• Dot.
• Flame to indicate that the burner is switched on.
• Radiator symbol.

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BOILER SYSTEMS AND OPERATION
CONTROLLER MANUAL – SFC/SFB SERIES BOILERS
USAGE
This section describes how to:
• Adjust the space heating water temperature
• Adjust the DHW water temperature
• Adjust the DHW modes
• Access the Service menu to test the unit ring rate
• Access the Information menu to obtain information on displayed codes
ADJUSTING THE SPACE HEATING
WATER TEMPERATURE
To adjust the water temperature in the space heating:
1. From the Main menu, touch the Space Heating button.
The current target temperature is displayed on the left side. Note that the Faucet
and Wrench are no longer displayed.
2. To change the target temperature or space heating, tap the Plus or Minus
buttons.
3. To save the changes, touch the Return button.

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“P” to the right of the panel indicates that the changes have been saved.
To exit without saving the changes, touch the On/Off area above the Dot.
ADJUSTING THE DHW TEMPERATURE
To adjust the DHW temperature:
1. From the Main menu, touch the Faucet button.
The DHW menu is displayed. In this menu, the DHW target temperature appears
on the main display.
2. To change the DHW target temperature, touch the Plus or Minus buttons.
3. To save the changes, touch the Return button. To exit without saving the
changes, touch the On/Off button.
NOTE
The boiler is equipped with
a Frost Protection feature.
This feature will operate the
boiler pump and the burner
to help protect the boiler
from freezing. If the boiler is
in a hard lock-out condition
the burner will not operate,
however the boiler heater
pump will operate. IBC is
not responsible for damages
to the boiler, and/or related
components, nor property
damages that may result from
freezing conditions.

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CONTROLLER MANUAL – SFC/SFB SERIES BOILERS
“P” to the right of the screen indicates that the changes have been saved.
To exit without saving the changes, touch the On/Off area above the Dot.
CHECKING THE DHW FLOW
You can check the DHW ow detected by the water heater (read in US gallons
per minute or in liters per minute). See ACCESSING THE INFORMATION MENU
on pages 1-10 to 1-11.
ADJUSTING THE DHW MODES
Note: These modes apply only to the SFC series of boilers.
When in standby, the unit has three DHW modes related to the heat exchanger
temperature:
Standard Mode (OFF): The unit will respond to a call for DHW as a priority over
the space heating demand. When the DHW demand is satised the unit will
return to the space heating load if the load is still calling. The water heater’s
heat exchanger will not maintain its DHW temperature between demands for hot
water.
Comfort Mode (ON): The water heater’s heat exchanger is maintained at the
DHW temperature.
ECO Comfort Mode (ECO): This mode operates like the Comfort Mode but has
the added advantage of learning when the DHW is used. During low-use periods,
the heat exchanger is allowed to cool.
To switch between the three modes:
1. From the Main Menu, touch the Faucet button twice.
The DHW mode is displayed on the left side of the panel.

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CONTROLLER MANUAL – SFC/SFB SERIES BOILERS
2. To change the DHW mode, scroll through the modes using the Plus or Minus
buttons.
3. To save the changes, touch the Return button. To exit without saving the
changes, touch the area above the Dot (or power indicator).
“P” to the right of the screen indicates that the changes have been saved.
To exit without saving the changes, touch the area above the Dot.
ACCESSING THE SERVICE MENU
The Service Menu provides service information and control over the unit ring
rate, used in the commissioning setup of the gas valve.
To access the Service Menu, from the Main Menu press and hold the Wrench for
two seconds.
To enter the Service Menu, from the Main Menu press and hold the Wrench for
two seconds.
The Service menu is displayed below.

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CONTROLLER MANUAL – SFC/SFB SERIES BOILERS
TESTING THE UNIT FIRING RATE
From the Service menu, you can test the unit’s high-re and low-re operation.
Program ‘L’: Burner on with minimum DHW capacity. With DHW running, press
Wrench and Minus at the same time. A L will display on the right.
Program ‘h’: Burner on with maximum Space Heating setting. With a call for
heat, press Wrench and Plus at the same time. An h will display on the right.
Program ‘H’: Burner on maximum capacity. With a call for heat, press Wrench
and Plus simultaneously twice. An H will display on the right.
To switch off test program press the Plus and Minus at the same time.
To switch off test program press the Plus and Minus at the same time.

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ACCESSING THE INFORMATION MENU
The Information menu provides sensor readings as well as other operating
conditions in the form of codes.
To access the Information menu:
1. Touch the area above the Dot twice to access the Main menu.
You’ll need to access the Information menu via the Service menu.
2. To access the Service menu, touch and hold the Wrench button for two
seconds.
The Minus, Plus, Wrench and Enter indicators are displayed.
3. Again, touch and hold the Wrench button for two seconds.
You are now in the Information menu. Note that the Enter button has
disappeared indicating that you are in read-only mode and therefore cannot
enter values.
In the Information menu, the code “A” appears to indicate the ame current in
DC µA (see table 2 for a list of codes and corresponding description).
4. To scroll through the list of codes, use the Minus or Plus button.
5. To switch out of the Information menu (and to return to the Service menu),
press the Flame button or area above the Dot.

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See below for a description of the codes:
Table 2: Information menu
ACCESSING INSTALLER MENU TO
CHANGE CONTROLLER PARAMETERS
The Installer Menu allows installers to change controller parameters set out in
table 3 on pages 1-13 to 1-16.
You can access these parameters through the installer’s code 015. The
installer’s code is shown on the left numerical display after the letter C. The
parameters are also shown on the left numerical display, after the letter P.

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To access the Installer Menu:
1. Press the Enter button and Wrench button at the same time.
The code numbers are displayed in the left numerical display.
2. Touch the Plus button repeatedly to enter code “015”.
3. Touch the Wrench again to open the parameter for editing. You can use the
Plus or Minus buttons to choose a different parameter.
Multiple changes can be made and all will be saved when the Return is pressed.
“P” to the right of the screen indicates that the changes have been saved.
To exit without saving the changes, touch the On/Off area above the Dot.
WARNING
Do not apply power to any
connection point on the
controllers terminal strips.
A hazardous situation could
occur resulting in possible
serious injury or death.

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TABLE OF PARAMETERS
PARAMETER DESCRIPTION DEFAULT RANGE / OPTIONS
P001 System Type SFC = 0
SFT = 2
SFB = 3
0 = CH + DHW
direct
1 = CH + External
indirectly heated
tank
2 = DHW direct only
3 = CH only
4 = Combi +
External indirectly
heated tank. Tank
differential 9°F /
5°C.
5 = Combi +
External directly
heated tank Tank
differential 9°F / 5°C
P003 Units 1 0 = Metric (°C, L/S,
Bar)
1 = Imperial (°F,
gpm, PSI)
P010 Maximum Space
Heating Output
SFC 125 = 75
All other models
= 100
25-100
P013 Maximum %
indirect tank
output
80%
P030 Space Heating
Pump Setting
00 = Post-purge time
active
1 = continuous
(DHW comfort
function off)
P031 Space Heating
Pump Maximum
Capacity
65 15%-100% (but
cannot be below
setting P032)
P032 Space Heating
Pump Minimum
Capacity
35 15%-100%

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PARAMETER DESCRIPTION DEFAULT RANGE / OPTIONS
P033 Space Heating
Pump Post-
Purge (minutes)
1 0-15 minutes
P034 Space Heating
Pump post-
purge after DHW
tank operation
(minutes)
1 0-15 minutes
P035 Step Modulation 1 0 = Off
1 = On Space
Heating gradually
ramps up from min.
2 = Open Therm
P036 Space Heating
Anti-cycle
(minutes)
5 0-15 minutes
P050 Space Heating
Supply
Temperature /
Design Supply
Temperature
176°F / 80°C 50°F to 194°F /
10°C to 90°C
P052 Design Outdoor
Temperature
16°F / -9°C -22°F to 50°F /
-30°to 10°C
P053 Summer
Shutdown
Temperature
77°F/ 25°C 50°F – 85°F / 10°C
– 30°C
P056 Minimum supply
temperature
when using an
Open Therm
modulating
thermostat
86°F
30°C
50°F – 140°F
10°C – 60°C
Minimum supply
temperature
when using
an on/off
thermostat and
“smart outdoor
function” active
P059 Maximum User
set temperature
of Space
Heating
194°F/ 90°C 50°F to 194°F /
10°C to 90°C
P061** Smart Outdoor
reset - Slope for
increase and
decrease supply
setpoint
3 °C/100 seconds.
0 = function inactive
P070 Maximum DHW
capacity
100% 20%-100%

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PARAMETER DESCRIPTION DEFAULT RANGE / OPTIONS
P074 Number of ECO
days
7 0-10 Number of past
days the predictive
heat-exchanger
heat-up algorithm
averages over
P075 Supply
Temperature for
external indirect
tank
176° F / 80°C 140°F to 194°F /
60°C to 90°C
P077 Response time
delay for space
heating after
DHW operation
0 0-15 minutes
P081 Setting of three-
way valve or
electric shutoff
valve
0 0 = powered during
Space Heating
demand
1 = powered during
DHW demand and
no demand
2 = powered durning
Space Heating
demand and no
demand
3 = powered during
DHW demand
P089 External tank set
temperature unit
˚C
140° F
Table 3: Information codes
** Smart outdoor reset function
When using a non-modulating room thermostat (on/off), if no outdoor reset
sensor is connected to the boiler it is possible to simulate weather-dependent
heating by activating “smart outdoor reset”.
When “smart outdoor reset” is activated, the setpoint for the supply temperature
is starting at a minimum value (P056), and during heating increases to the
maximum value set by the user.
When the demand for space heating is satised, the setpoint for the supply
temperature is lowered in the same way until it reaches the minimum value.
The slope for this modulation can be set with parameter P061. Note that the
value is °C per 100 seconds (*).
(*) Important: The lower the setting the more stable the heating process.
However, it will take longer for rooms to heat up.

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