OM-APEX E V1.06
November 19, 2012
Page 21
APEX CBT
ADD-ON TO GAS FURNACE
Th
e APEX CBT may be connected to a gas furnace having a max. rated input of 120,000 BTU.
Minimum blower capacity must be at least 900 cfm. A counter fl ow gas furnace may be used with an
interconnect duct as indicated in Fig 3. A regular up fl ow gas furnace may be used and connected as per Fig
3. Th
e APEX CBT can be located on either side of the gas furnace. Minimum interconnect duct size is 12” x
17” with minimum 6” inside radius elbows. Do not, under any circumstances, connect the APEX CBT fl ue to
a chimney that also vents the gas furnace. Th
e wood furnace requires a chimney approved for solid fuel use.
Maintain clearances to all combustibles. Refer to general instructions portions of this manual also.
THE OPERATION OF THE GAS FURNACE MUST BE VERIFIED FOR ACCEPTABLE
OPERATION, BEFORE AND AFTER INSTALLATION OF THE ADD ON, BY A GAS FITTER WHO
IS RECOGNIZED BY THE REGULATORY AUTHORITY. DO NOT CONNECT TO ANY FURNACE
THAT HAS NOT BEEN CERTIFIED INITIALLY AS COMPLYING WITH CGA STANDARD CAN1-2.3
OR ITS PRECEDENTS. DO NOT CONNECT TO ANY FURNACE THAT IS NOT EQUIPPED WITH
AN AIR CIRCULATION BLOWER.
DO NOT CONNECT, UNDER ANY CIRCUMSTANCES, TO A CHIMNEY SERVING A GAS
FURNACE OR OTHER GAS APPLIANCE.
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 22.
ADD-ON TO OIL FURNACE
Th
e APEX CBT may be connected to an oil furnace having a rated input of up to 1.2 USGPH. Minimum blower
capacity must be at least 900 cfm. A regular up fl ow oil furnace may be used and connected as per fi g. 3. Th
e
APEX CBT can be located on either side of the oil furnace. Minimum interconnect duct size is 12” x 17” with
minimum 6” inside radius elbows. Th
e wood furnace requires a chimney approved for solid fuel use. Maintain
clearances to all combustibles. Refer to general instructions portions of this manual also.
If changes are made to the installation of the oil furnace these changes must comply with CSA Standard B139.
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 22.
INSTALLATION INSTRUCTIONS - Combination APEX-Gas/Oil
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 ...
