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MODEL SF-10
CONTROL
OPERATION AND INSTRUCTION MANUAL
The SF-10 Boiler Temperature Control (BTC) is an efficient boiler operator with a digital LCD display
with backlight, a boiler pump output, and an alarm. The control regulates the boiler based upon set-
point, outdoor reset with domestic hot water heating priority, and several options for external boiler
control.
Features:
• Setpoint Operation
• Outdoor Reset with DHW Priority
• External Control through BMS Signal
• External Control through tekmar
Boiler Controls
• Boiler Pump Operation and Purge
• DHW Pump and Purge
• DHW Priority
• Parallel Piping
• Primary - Secondary Piping
• Display Backlight
Publication No. SF-10-40
Printed in Canada 0509
Part No. 470899000
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Table of Contents
Summary of Contents for Slant/Fin SF-10
- Page 1 CONTROL OPERATION AND INSTRUCTION MANUAL The SF-10 Boiler Temperature Control (BTC) is an efficient boiler operator with a digital LCD display with backlight, a boiler pump output, and an alarm. The control regulates the boiler based upon set- point, outdoor reset with domestic hot water heating priority, and several options for external boiler control.
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Page 2: Table Of Contents
Additional information can be gained by observing the Status field of the LCD. The status field will indicate which of the control’s outputs are currently active. Symbols in the status field are only visible when the View menu is selected. Model SF-10 Control Instructions Manual... -
Page 3: Display
Displays when an error message is present. Note: Stage 2 contact is not used in this application. WWSD POINTERS Displays when the control is in Warm Weather Displays the operation as indicated by the Shut Down. text. Model SF-10 Control Instructions Manual... -
Page 4: Sequence Of Operation
DHW demand are present at the same time, the control targets the Outlet Sensor higher of the two requirements. Refer to section F for a description of indi- Boiler Inlet Sensor rect domestic hot water operation. Model SF-10 Control Instructions Manual... - Page 5 DHW demand are present at the same time, the control targets the Boiler Inlet Sensor higher of the two requirements. Refer to section F for a description of indi- rect domestic hot water operation. Model SF-10 Control Instructions Manual...
- Page 6 During light loads, the differential is increased to allow longer on and off times to reduce the potential for short cycling. During large loads, the differential is narrowed thereby improving comfort in heating spaces by reducing temperature swing. Differential Time Model SF-10 Control Instructions Manual...
- Page 7 1, 3 and 5 is the boiler outlet sensor, and the operating sensor for modes 2, 4 and 6 is the boiler supply sensor. If the control does not presently have a requirement for heat, it displays “– – – ” in the LCD. There is no boiler target temperature generated in Mode 7. Model SF-10 Control Instructions Manual...
- Page 8 BOIL TARGET item in the Adjust menu. If the operating sensor reaches 1/2 of the differential above the BOIL TARGET setting, the boiler burner is shut off. The pump contact remains closed until the heat demand is removed and Pump DLY setting expires. Model SF-10 Control Instructions Manual...
- Page 9 However, the control does not operate the boiler to satisfy this demand. The control continues to respond to DHW BOIL BOIL START START demands. OUTDR OUTDR START START Decreasing Outdoor Temperature Model SF-10 Control Instructions Manual...
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Page 10: Section D: External Temperature Target
The Offset setting is then added to the boiler target tempera- Example Range 0-10 V (dc) Input 7 V (dc) 157°F (69°C) Offset + 5°F (3°C) + 5°F (3°C) l i o ° 2 ° 2 Model SF-10 Control Instructions Manual... -
Page 11: Section E: External Direct Drive
When the boiler is piped in primary / secondary to the boiler and MODE is set to 2, 4, or 6, the control operates the boiler pump together with the DHW pump. Ω Boiler Supply Sensor Model SF-10 Control Instructions Manual... - Page 12 DHW pump while restarting the boiler pump. This allows some of the DHW tank return water to mix with the cool return water from the zones and temper the boiler return water. Model SF-10 Control Instructions Manual...
- Page 13 Model SF-10 Control Instructions Manual...
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Page 14: Testing
29,996 5,210 1,281 234,196 26,099 4,665 1,172 196,358 22,763 4,184 1,073 165,180 19,900 3,760 139,402 17,436 3,383 118,018 15,311 3,050 100,221 13,474 2,754 85,362 11,883 2,490 72,918 10,501 2,255 62,465 9,299 2,045 53,658 8,250 1,857 Model SF-10 Control Instructions Manual... - Page 15 Apply power to the control. The operation of the control on power up is described in the Sequence of Operation section of the brochure. Model SF-10 Control Instructions Manual...
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Page 16: Control (Dip Switch) Settings
/ or adjusted in the user interface. The Factory Access Level includes all the settings available in the control. The Installer Access Level includes the settings and items which are required for system setup. Factory Installer (2) Not Used Model SF-10 Control Instructions Manual... -
Page 17: Mode 1 And 2 Setpoint & Dhw Operation
The control receives a DHW Demand from a DHW aquastat. The control turns on the DHW pump, boiler pump, and operates the boiler to maintain the DHW boiler target temperature at the boiler supply sensor whenever a DHW demand is present. Model SF-10 Control Instructions Manual... -
Page 18: View Menu
The total number of running hours of the boiler since this item Factory 0 to 999 was last cleared. Clear the numbers of hours by pressing and holding the Up and Down buttons together while viewing this item. Model SF-10 Control Instructions Manual... -
Page 19: Adjust Menu
Select the boiler pump purge time after shutting off the burner. Default = 0:20 min TEMPERATURE UNITS Factory °F, °C Select to display temperature in degrees Installer Default = °F Fahrenheit or in degrees Celsius. Model SF-10 Control Instructions Manual... -
Page 20: Mode 3 And 4 Outdoor Reset & Dhw Operation
DHW Demand from a DHW aquastat. The control turns on the DHW pump, boiler pump, and operates the boiler to main- tain the DHW boiler target temperature at the boiler supply sensor whenever a DHW demand is present. Model SF-10 Control Instructions Manual... -
Page 21: View Menu
The total number of running hours of the boiler since this item Factory 0 to 999 was last cleared. Clear the numbers of hours by pressing and holding the Up and Down buttons together while viewing this item. Model SF-10 Control Instructions Manual... -
Page 22: Adjust Menu
Default = 0:10 min pre-purging, ignition and the flame to be (1 second increments) established. 1 (low mass) Factory BOILER MASS 2 (medium mass) 3 (high mass) Select the thermal mass of the boiler. Installer Default = 2 Model SF-10 Control Instructions Manual... - Page 23 Select the space heating system’s warm weather Installer shut down when using outdoor reset. Default = 65°F (18°C) TEMPERATURE UNITS Factory °F, °C Select to display temperature in degrees Fahrenheit Installer Default = °F or in degrees Celsius. Model SF-10 Control Instructions Manual...
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Page 24: Mode 5 And 6 External Target Temperature
DHW Demand from a DHW aquastat. The control turns on the DHW pump, boiler pump, and operates the boiler to maintain the DHW setpoint boiler target temperature at the supply sensor whenever a DHW demand is present. Model SF-10 Control Instructions Manual... -
Page 25: View Menu
The total number of running hours of the boiler since this item Factory 0 to 999 was last cleared. Clear the numbers of hours by pressing and holding the Up and Down buttons together while viewing this item. Model SF-10 Control Instructions Manual... -
Page 26: Adjust Menu
Default = 180°F (82°C) DHW MODE Select no priority (1) or priority (2) of indirect DHW 1, 2 heating over space heating. Factory Default = 1 Note: This item is only available when MODE is set to 5. Model SF-10 Control Instructions Manual... - Page 27 Select the amount of offset when the boiler target is determined from an external input signal. Default = 0°F (0°C) Offset TEMPERATURE UNITS Factory °F, °C Select to display temperature in degrees Fahrenheit Installer Default = °F or in degrees Celsius. Model SF-10 Control Instructions Manual...
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Page 28: Mode 7 External Direct Drive Operation
The total number of running hours of the boiler since this item was Factory 0 to 999 last cleared. Clear the numbers of hours by press and holding the Up and Down buttons together while viewing this item. Model SF-10 Control Instructions Manual... -
Page 29: Adjust Menu
Default = °F or in degrees Celsius. RELOAD FACTORY DEFAULTS To reload FACTORY DEFAULT SETTINGS, press and hold the outside buttons (Item and Down) while powering the control up. This will reload the FACTORY DEFAULTS. Model SF-10 Control Instructions Manual... -
Page 30: Error Messages
The control is no longer able to read the outdoor sensor due to an open circuit. In this case the control assumes an outdoor temperature of 32°F (0°C) and continues operation. Test the outdoor sensor and related wiring. The error message will clear once the error condition is corrected and a button is pressed. Model SF-10 Control Instructions Manual... -
Page 31: Technical Data
120 V (ac) 3 A 1/6 hp pilot duty 240 VA , r o @ 77°F (25°C ±0.2°C) ß=3892 1 with 96” long wires (S/F# 790400000) included (S/F# 339070000) Universal Sensor with 96” long wires (S/F# 790400000) o i t Model SF-10 Control Instructions Manual... - Page 32 SLANT/FIN LTD/LTEE, 6450 Northam Drive, Mississauga, Ontario L4V 1H9 Phone: (905) 677-8400 / FAX: (905) 677-1829 / Order Desk Fax: (905) 677-9015 www.slantfin.ca / E-mail: orderdesk@slantfin.ca / info@slantfin.ca ©Slant/Fin Corp. 2009.