OM-APEX E V1.06
November 19, 2012
Page 19
APEX CBT
INSTALLATION INSTRUCTIONS - Combination APEX-Electric
ADD-ON TO ELECTRIC FURNACE
Th
e APEX CBT may be added to an electric furnace with heating capacity between 15KW and 30KW.
Minimum blower capacity must be at least 900 cfm. Electric furnaces approved for installation in any position
can be inverted and used in a down fl ow position using an adapter duct between the furnace and the add-
on as indicated in fi g. 3. Th
e electric furnace may be located on either side of the APEX CBT but clearances
to combustibles must be maintained. Refer to general and pressure loss portions of this manual also (see
“INSTALLATION INSTRUCTIONS cont.” on page 14) .
If changes are made to the installation of the electric furnace they must comply with CSA Standard C22.1.
AN INTERLOCK LIMIT SWITCH MUST BE INCLUDED IN THE CONTROL CIRCUITRY
PREVENTING THE GAS FURNACE FROM OPERATING WHEN THE SYSTEM OUTPUT PLENUM
TEMPERATURE IS ABOVE 150°F. TYPICAL WIRING DIAGRAM FOLLOWS: SEE FIG 21. IF
YOUR ELECTRIC FURNACE DOES NOT HAVE AN R AND G CONNECTION SEE FIG. 22.
Summary of Contents for APEX CBT
Page 5: ...OM APEX E V1 06 November 19 2012 Page 5 APEX CBT APPLIANCE DIMENSIONS ...
Page 7: ...OM APEX E V1 06 November 19 2012 Page 7 APEX CBT CERTIFICATION LABEL ...
Page 33: ...OM APEX E V1 06 November 19 2012 Page 33 APEX CBT BRICK LAYOUT ...
Page 40: ...OM APEX E V1 06 November 19 2012 Page 40 APEX CBT NOTES ...
