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InstallatIon guIde
sB serIes / sB-M serIes
Dual eNergy Duct heater / MoDulatINg Duct heater
replaceMeNt coMpoNeNt lISt INcluDeD
This section must be read carefully by the installer.
The installer must also read the user's guide since it contains other important information.
For further information or to consult this guide online, please visit our website at www.stelpro.com
e322241
INS_SB/SB-M-I-0513
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Summary of Contents for Stelpro SB05
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Page 1: Installation Guide
This section must be read carefully by the installer. The installer must also read the user’s guide since it contains other important information. For further information or to consult this guide online, please visit our website at www.stelpro.com INS_SB/SB-M-I-0513... - Page 2 warnIng Before installing and operating this product, the user and/or installer must read, understand and follow these instructions and keep them handy for future reference. If these instructions are not followed, the warranty will be considered null and void and the manufacturer deems no further responsibility for this product.
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Page 3: Specifications
SpecIfIcatIoNS SB dual eNeRgy duct heateR Type volTs amps heighT (in) WidTh (in) depTh (in) SB05 240/208 5.0/3.8 20.8/18.1 12 9/16 20 1/8 20 9/16 - 23 9/16 33.4 15.5 SB10 240/208 10.0/7.5 41.7/36.1 12 9/16 20 1/8 20 9/16 - 23 9/16 33.4... - Page 4 dUcT heaTer orienTaTion The SB & SB-M duct heaters can be installed in a vertical or horizontal conduit (see figure 3). In the case of a horizontal installation, the control panel should not face the floor or the ceiling (see figure 4). A wrong installation affects the safe and reliable operation of the unit. FURNACE AIR FLOW COOLING COIL...
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Page 5: Baffle Installation
baFFle insTallaTion Baffles have to be installed by matching the clips on the baffles to the holes on the heat body and by securing them with self-tapping screws. Then, they have to be cut in order to fit in the duct with a gap of 1/8” between the duct lining and the baffle edge. N.B. -
Page 6: Electric Mode
posiTioning The dUcT TemperaTUre sensor The temperature-sensor of the duct must be placed on the supply side at a good distance from the duct heater in order to avoid as much exposure as possible from the radiation of the elements. FigUre 8 electrIcal coNNectIoNS elecTrical poWer sUpply... - Page 7 aUTo-TransFer override In the event that a malfunction of the activated mode is detected, the duct heater will systematically override the activated mode and revert to its alternate mode. More specifically, the SB dual energy duct heater control board is equipped with a “duct” temperature-sensor. This device enables the controller to detect a malfunction in the heating system (electric or fuel).
- Page 8 ThermosTaT and FUrnace conTrol signals (sb series) The existing thermostat may be used to control the SB dual energy duct heater. The duct heater includes a control terminal block connection located directly on the circuit board. This makes it possible to connect the thermostat and the furnace control wires (R, W and g). Please refer to the following wiring diagrams to connect the thermostat and the furnace to the duct heater.
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Page 9: Technical Drawings
sB-M serIes MoDulatINg Duct heater SpecIfIcatIoNS SB-m dual eNeRgy duct heateR Type volTs amps heighT (in) WidTh (in) depTh (in) sbm05 240/208 5.0/3.8 20.8/18.1 12 9/16 20 1/8 20 9/16 - 23 9/16 33.4 15.5 sbm10 240/208 10.0/7.5 41.7/36.1 12 9/16 20 1/8 20 9/16 - 23 9/16 33.4... - Page 10 emergency Fossil FUel The EMERGENCy FOSSIL FUEL CONTROL MODE requires a one stage thermostat (W or y signal) + EMERGENCy MODE (E signal). This control mode allows the thermostat to use the fossil fuel furnace as a supplemental heat source. To enable the Fossil FUel only mode, the W14 (stage) jumper must be set to 2. As with the ELECTRIC/ ELECTRIC + HEAT PUMP MODE, the thermostat heat demands are conveyed to the duct heater (and heat pump if so equipped).
- Page 11 trouBleShootINg SB-M MoDel PRoBlem deFectIVe PaRt oR PaRt to checK • Defective thermostat, wrong thermostat setting, positioning or wiring • open circuit breaker or fuse The unit does not work • Faulty power supply connections • Defective transformer • Defective relay The unit has power but the elements do not work •...
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Page 12: Maintenance
heaTing demand inTerlock (sb only) The demand for heat received by the control board can only operate one heating mode at a time even if the microcontroller is damaged. Indeed, an electromechanical interlock built into the control board, prevents the two heating modes from operating at the same time as a result of a damaged microcontroller requesting erratic demands. -
Page 13: Limited Warranty
. Stelpro reserves the right to examine or to ask one of its representatives to examine the product itself or any part of it before honoring the warranty. Stelpro reserves the right to replace the entire unit, refund its purchase price or repair a defective part. - Page 14 appendIx 1 coNtRol caRd toP VIew FigUre 16 INS_SB/SB-M-I-0513...
- Page 15 appendIx 2 SB/SBm coNtRol PaNel VIew RePlacemeNt comPoNeNtS lISt DETAIL A DETAIL B FigUre 17 ReF. # PaRt # deScRIPtIoN ELF-SB160521 SB ASSEMBLED ELEMENT, 16” LONG., 5 kW, 240 V ELF-SB160421 SB ASSEMBLED ELEMENT, 16” LONG., 4 kW, 240 V ELF-SB160321 SB ASSEMBLED ELEMENT, 16”...
- Page 16 appendIx 3 SB-m wIth oIl FuRNace FaN cIRcuIt (R-w-g theRmoStat) Heating elements and fan relay are activated when signals y, O/B and G are applied to SB-M terminal block (heat pump section). SB-M PCB THERMOSTAT W W W W W W W W W W W W OPTO OPTO W W W...
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