B series electric furnace fb0002 broan-nutone canada inc.; mississauga, ontario www.Broan.Ca 877-896-1119 i nstallation and u ser m anual important : read and save these instructions . 30042478b m odels : 21b10m, 21b15m, 21b18m, 21b20m, 21b25m, 21b27m, 83b13, 83b24 and 83b27 m a d e i n can a d a f ...
• never tamper with the unit or its controls. User must contact a specialized contractor when a failure occurs. Do not attempt to repair. • when using a humidifier make sure not to damage the heating element bank. • we recommend that your unit be inspected by a specialized technician once a year. • ...
- 3 - t able of c ontents 1. Dimensions .............................................................................................................................................. 3 2. General requirements and specifications ...........................................................................
- 4 - 2. G eneral r equirements and s pecifications this unit must be installed in a dry place, in a non-corrosive, well-ventilated environment, without excessive dust. The ambient temperatue must be over 10°c and under 27°c. If the ambient temperatue is 10°c or less, the plenum must be insulated on...
- 5 - 3. O perating o ptions the furnace is shipped from the factory in a “standard heating mode” (all switches are in the down position). When the thermostat calls for heat, the automatic controls will be activated and the furnace turned “on”. The blower will run at low speed as the furnace heats u...
- 6 - 5.3 c onnecting and a djusting the l ow v oltage t hermostat (use only class 1 wires inside furnace compartments.) attach thermostat wires to the low voltage terminal block located on the inside of the furnace. Follow the diagrams supplied with the thermostat. As a general guide, remember that...
- 7 - 7. U sing o ptional e quipment 7.1 t wo -s tage or o utdoor t hermostat (the season select switch must be in the m ild position). These controls can be used on all furnaces except 10 kw model. Follow the directions supplied with the two-stage or outdoor thermostat in conjunction with the furna...
- 8 - 8. W iring d iagrams ! Warning risk of electric shock. Disconnect power before installation, servicing, maintenance or field wiring. Replace all panels before operating. Failure to do so can result in electric shock causing severe injuries or death. Fe0045a class 2 transformer pri: 240 v 60 hz...
- 9 - 8. W iring d iagrams ( cont ’ d ) w open: 93.3°c mrtp 1 mrtp 2 w open: 93.3°c mrtp 1 mrtp 2 24 vac common out 24 vac power out call for fan call for heat 1 call for heat 2 bl b heat indicator c g r w1 w2 tb 24 vac common out 24 vac power out call for fan call for heat 1 call for heat 2 bl b he...
- 10 - 8. W iring d iagrams ( cont ’ d ) bl w open: 93.3°c mrtp 1 mrtp 2 24 vac common out 24 vac power out call for fan call for heat 1 call for heat 2 bl b heat indicator c g r w1 w2 tb bl bl season select b class 2 transformer pri: 240 v 60 hz sec: 24 v 60 hz 40 va y t y y b r y 27 kw 240 vac sin...
-11 - 8. W iring d iagrams ( cont ’ d ) 27 kw 208 vac 3-phase 24 kw 208 vac 3-phase 13.5 kw 208 vac 3-phase / triphasé k2 240v 1 5 2 3 6 4 240 vac nc r bl y bl c b w b k1 24v 1 5 2 3 6 4 24v dc k1 24v 1 5 2 3 6 4 24v dc b continuous ventilation r m y bl c w b r b b m k2 240v 1 5 2 3 6 4 240 vac nc b...
- 12 - 9. S ervice p arts 1 18 2 3 15 16 6 7 8 5 13 14 9 10 11 12 22 fl0018 17 19 23 4 24 25 20 21 replacement parts time delay relays (sequencers) key no. Part no. Bottom second third 1 30270025 b15 b24-b27 30270026 b10 b18-b20-b25-b27 10940925 b15-b18-b20 10940926 b25-b27 key no. Part no. Descript...
11. T roubleshooting the first step in identifying an operational problem is to determine whether the fault is in the furnace or in the thermostat and/or its connecting wiring. To help make this determination, the furnace is equipped with a “thermostat on” diagnostic light. If the light is “on”, it ...
Sixty-month limited warranty for nortron products broan-nutone canada (broan-nutone) warrants to the original consumer purchaser of notron products that such products will be free from defects in materials or workmanship for a period of sixty (60) months from the date of original purchase. There are...
