Table of Contents
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Installation guide
" ASB " Series / " ASB-M " Series
Dual energy duct heater
This section must be read carefully by the installer.
(Replacement component list included)
ASB
ASB-M
E322241
This unit is approved according
to the Canadian and American
manufacturing standards.
For further information or to consult this guide online, please visit our Web site.
INS_ASB/ASB-M-I-0212
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Table of Contents
Related Manuals for Stelpro ASB05
Summary of Contents for Stelpro ASB05
- Page 1 Installation guide “ ASB ” Series / “ ASB-M ” Series Dual energy duct heater This section must be read carefully by the installer. (Replacement component list included) ASB-M E322241 This unit is approved according to the Canadian and American manufacturing standards.
- Page 2 WARNING WARNING WARNING 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
30,0/22,5 125,0/108,3 12 9/16 20 1/8 20 9/16 - 23 9/16 33,4 15,5 N.B. Please consult appendix 1 for more technical specifications. *For the ASB05 and ASB10 models, no breakers are needed. TECHNICAL DRAWING MODEL 16X18 18'' 16'' 19X19 19''... - Page 4 Duct Heater Orientation The ASB & ASB-M duct heater 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). Such an installation could affect 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. If the clips are too tight to slide, they can be opened with a flat screwdriver. -
Page 6: Electrical Connections
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 pos- sible 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 ASB 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 controls signals (“ ASB ” models) The existing thermostat may be used to control the ASB 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: Operating Options
SPECIFICATIONS “ASB-M” DUAL ENERGY DUCT HEATER Type volts amps height (in) width (in) depth (in) ASBM05* 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 ASBM10* 240/208 10.0/7.5 41.7/36.1 12 9/16 20 1/8 20 9/16 - 23 9/16 33,4 15,5 ASBM15... - Page 10 tric/ electric + heat pump mode, the thermostat heat demands are conveyed to the duct heater (and heat pump if so equipped). However, if the duct heater/ heat pump combined heat output is still insufficient the thermostat will redirect the heat demand to the fossil fuel furnace. The emergency fossil fuel mode requires a double stage thermostat for the fossil fuel furnace heat output is to be controlled by means of the thermostat second heating stage (see fig.
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Page 11: Thermal Protections
The thermal protections provide a 93°C (199.4°F) maximum temperature limitation on the air output. ELECTRICAL PROTECTION: ASB/ASB-M models are equipped with one or more circuit breakers (except for ASB05 and ASB10 models). Heating demand interlock (“ASB” 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 electrome- chanical interlock built into the control board (Relay K1 see page 15), prevents the two heating modes from operating at the same time as a result from a dam- aged microcontroller requesting erratic demands. -
Page 12: Maintenance
MAINTENANCE The ASB & ASB-M dual energy duct heater itself does not require any particular maintenance. However, it is important to carry out regular maintenance on the ventilation system as a whole. The air filter should be replaced when it is dirty and the ventilation shafts cleaned out when necessary. During the cleaning of the conduits, the ventilator of the furnace must be inspected and cleaned if necessary. -
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_ASB/ASB-M-I-0212...
- Page 15 APPENDIX 2 “ ASB ” Control panel view Replacement components list DETAIL A DETAIL B Figure 18 #DIAGRAM #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 ASB-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 ASB-M terminal block (heat pump section). ASB-M PCB THERMOSTAT W W W W W W W W W W W W OPTO OPTO W W W...
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