TEL.: 905-670-2500 FAX: 905-795-8311 B SERIES ELECTRIC …

1 TEL.: 905-670-2500 . MISSISSAUGA, ONTARIO L5T 1H9 FAX: 905-795-8311 . CUSTOMER SERVICE TEL.: 1-888-882-7626. B SERIES ELECTRIC furnace . ! WARNING. 1. The user MUST contact a specialized contractor when a failure occurs. DO NOT ATTEMPT to repair. 2. When using a humidifier make sure not to damage the heating element bank. 3. We recommend that your unit be inspected by a specialized technician once a year. 4. A poor maintenance of air filters OR an unbalanced static pressure may result in a performance decrease. 5. Always use genuine parts for maintenance or service call. The use of unbranded parts will void the warranty. 6. The use of this unit without air distribution duct will void the warranty. 7. To assure a proper performance of your furnace , we recommend that you use good quality thermostats of a well-known brand. ! WARNING. It is strictly forbidden to use jumpers to simulate heat demand. ! WARNING. Risk of electrical shock. Disconnect power before installation, servicing, maintenance or field wiring.

2 Replace all panels before operating. Failure to do so can result in electrical shock causing severe injuries or death. ! WARNING. When performing installation, servicing or cleaning the unit, it is recommended to wear safety glasses and gloves. 30042285-2. 1. INSTALLATION AND OPERATING INSTRUCTIONS. This furnace has been designed and manufactured to The safe and dependable operation of the furnace give the most reliable performance possible. Each unit depends upon proper installation and compliance with has been given a running inspection before shipment to all National and Local Codes and Standards. assure that every component is operating efficiently. FRONT VIEW. 20 . (508 mm) SIDE VIEW. 1 TOP VIEW WIRING KO'S. (25 mm) FILTER 1 (25 mm). FRAME 1 (6 mm). (EITHER SIDE (38 mm) 1 (32 mm). OR BOTTOM) (13 mm). 1 1 (38 mm). (38 mm). 17 x 17 18 x 18 . 39 (432mm x432mm). 20 (457 mm x 457 mm). (991 mm) DISCHARGE RETURN. (508 mm). 1 x 1 KO. (38 mm x 38 mm). BFK0002. GENERAL REQUIREMENTS AND SPECIFICATIONS.

3 1. LOCATION The furnace should be located as 4. TEMPERATURE RISE Furnaces are shipped to central as possible to the area that is being heated. operate at (5 mm) (50 Pa) external static pressure. They are certified for operation up to . 2. POSITIONS It can be installed for vertical, hor- (13 mm) (125 Pa). Check on the following page izontal or downflow operation. When installed hori- for temperature rise table on specification chart and, zontally, the front door panel must be in the ver- if necessary, adjust the unit to match. tical position so the motor bearings are in their designed position. In vertical downflow installations, 5. SERVICE CLEARANCE Units are serviced from use only L - or T -shaped plenum with no openings the FRONT. Leave at least 24 (610 mm) clearance or registers directly below furnace . in front of the door. 3. INSTALLATION CLEARANCES As shipped from the factory, each unit is approved for zero inch . clearance. If additional clearance is required, it will be indicated on the data label attached to the furnace .

4 2. GENERAL REQUIREMENTS AND SPECIFICATIONS (cont'd). 240 VOLTS SINGLE PHASE TEMP. RISE @ MODEL NO. KW BTUH AMPS INCL. HP BLOWER C F *SPEED RPM. MOTOR. 21B10M 10 34120 46 21 70 LOW 663. 21B15M 15 51180 67 24 75 MED-LOW 814. 10 x 8 . 21B18M** 18 61420 77 (254 mm x 203 mm) 27 81 MED-LOW 814. 21B20M** 20 68240 86 33 91 MED-LOW 814. 21B25M** 25 85300 107 37 99 MED-LOW 814. 21B27MS** 27 92130 116 12 x 8 36 97 MED-HIGH 707. (304 mm x 203 mm). 208 VOLTS THREE PHASE. 83B13 46060 42 21 70 MED 960. 10 x 8 . 83B24 24 81890 70 35 95 MED 960. (254 mm x 203 mm). 83B27 27 92130 78 39 102 MED 960. 10 X 8 (254 mm X 203 mm) BLOWER. STATIC PRESSURE. SPEED FLOW RATE (INCHES OF WATER COLUMN). LOW** CFM 756 749 740 729 713. L/s 357 353 349 344 337. MED-LOW CFM 1035 1018 997 971 935. L/s 488 480 470 458 441. MED-HIGH CFM 1177 1157 1132 1102 1063. L/s 556 546 534 520 502. HIGH CFM 1301 1276 1247 1207 1145. L/s 614 602 588 569 540. 12 X 8 (304 X 203 mm) BLOWER . STATIC PRESSURE. SPEED FLOW RATE (INCHES OF WATER COLUMN).

5 LOW** CFM 727 699 667 636 606. L/s 343 330 315 300 286. MED-LOW** CFM 912 897 878 853 823. L/s 431 423 414 402 388. MED-HIGH CFM 1216 1200 1181 1157 1129. L/s 574 566 557 546 533. HIGH CFM 1640 1601 1558 1513 1466. L/s 774 755 735 714 692. WARNING: *FACTORY SETTINGS. **21B18M, 21B20M and 21B25M must NOT be setup to run continuously at LOW speed as it will cause overheating conditions. These models are certified to run only at HIGH, MED-HIGH and MED-LOW speeds. **21B27MS must NOT be setup to run continuously at LOW or MED-LOW speeds, as it will cause overheating conditions. This model is certified to run only at HIGH and MED-HIGH speeds. **These speeds can only be run with heater off, for cooling/ventilation purposes only.. 21B27MS has built-in noise-absorption components to run quietly during continuous or regular cycle modes. SUBJECT TO CHANGE WITHOUT NOTICE. 3. OPERATING OPTIONS. The furnace is shipped from the factory in a Standard The timing of this blower speed change will depend on the Heating Mode (all switches are in the Down position).

6 When size of the furnace (10 kW and kW models do not the thermostat calls for heat, the automatic controls will be change speeds). You may, however, change from the activated and the furnace turned ON . Standard Heating Mode, by using the controls built into your furnace . The blower will run at low speed as the furnace heats up and will automatically switch to a higher speed when additional elements are activated by the time delay relays. FAN CONTROL ENERGY SAVER MODE SELECTOR. CONTINUOUS MILD WEATHER VENTILATION. LOW SPEED (NOT INCLUDED IN MODELS. 21B10M & 83B13). AUTOMATIC COLD WEATHER HEATING. BFC0001 BFC0001 BFC0001. Continuous Some homeowners Mild Weather During spring and Ventilation The blower runs prefer the blower to run fall, you may not require full heating continuously at high speed to provide continuously at low speed to more capacity to maintain a comfortable constant air circulation throughout evenly distribute air in the house. In temperature. In this position, the house during warm months.

7 This position, the blower will run approximately half of the elements continuously on low and automatically are off-line and will not be Heating The switch is OFF and change to a higher speed when energized when the thermostat calls the blower will operate in the heating elements are turned on by for heat. standard heating mode, controlled by the thermostat. Cold Weather All elements are the thermostat. online and controlled by the Automatic The motor will operate thermostat. NOTE: When air conditioning is in the standard heating mode, NOTE: If outdoor or two-stage being used, switch must be in controlled by the thermostat. thermostat is used, switch MUST be heating position. in Mild Weather position at all times. INSTALLATION NOTES. 1. COLD AIR RETURN 3. CONNECTING AND ADJUSTING THE LOW VOLTAGE. The duct can be attached to either side or the bottom of THERMOSTAT (use only class 1 wires inside furnace the furnace . compartments). For side return, there are four 1 (38 mm) knockouts which Attach thermostat wires to the low-voltage terminal block can be removed and used as an outline for cutting an 18 x 18 located on the inside of the furnace .

8 Follow the diagrams (457 mm x 457 mm) return air opening in the furnace side. supplied with the thermostat. As a general guide, remember Mount the filter frame to the furnace over the opening with the that the R & W terminals control single stage heating; the open side of the frame facing front. Then, attach the 19 x 19 R & Y terminals control cooling. Make sure the thermostat is (483 mm x 483 mm) air duct to the flanges on the filter frame. levelled on the wall and in appropriate location as per For bottom mounting, remove the screws holding the bottom instructions supplied with the thermostat. plate to the furnace , discard the bottom plate and attach the filter frame to the bottom flanges with the open side of the CAUTION. frame facing front. Before turning the furnace on, the heat anticipator 2. ELECTRICAL WIRING POWER SUPPLY in the thermostat must be properly set to prevent its The furnaces are completely factory-wired. From a separate failure and to assure comfortable, economical heating.

9 Breaker, a two-wire plus ground supply wire is required for single phase units, and a three-wire plus ground supply wire Because each installation is different, an accurate reading of for three phase units. The ground conductor must be firmly the current draw should be made with an AC meter. Set the attached to the ground lug in the furnace and the supply wires to meter at a 2 A range for furnaces through 20 kW, and at 4 A range the terminal block in the furnace . for larger units. A. Set the anticipator at its highest setting. NOTE: On single-phase furnaces, when a FK120 kit is used to B. Disconnect the W1 thermostat wire from the furnace supply an air cleaner and/or humidifier, a third (neutral) low-volt age board. conductor has to be brought into the furnace . C. Connect the AC meter between the W1 terminal on the board and the loose W1 wire. All wiring must conform to the latest editions of the Canadian D. Turn the thermostat up to start the furnace and allow it to Electrical Code and local codes.

10 Copper or aluminium wire run with all elements for three or four minutes. of the appropriate size may be used. E. Read the current draw on the meter and reset the anticipator to match the meter reading. 4. FOR USE IN MOBILE HOMES. Models 21B10M, 21B15M, 21B18M & 21B20M are certified not exceed the maximum external static pressure of for L -shape and T -shape shallow duct installation with (13 mm) (125 Pa). model FSB-1 sub-base in downflow applications when the SHALLOW DUCT AREA REQUIREMENTS. supply air ducts pass through the floor of the structure. Duct Depth Duct Width Recommended size of a floor opening: 14 x 14 4 (25 mm) 16 (406 mm). (362 mm x 362 mm). The duct system must be designed 5 (127 mm) 13 (330 mm). so that the external static pressure of the system does 6 (152 mm) 10 (254 mm). USING OPTIONAL EQUIPMENT First Stage (kW) Second Stage (kW). 1. A TWO-STAGE OR OUTDOOR THERMOSTAT. 10 kW 10 . (The Energy Saver switch must be in the Mild 15 kW 10 5. Weather position). These controls can be used on all furnaces except 10 kW model.