Power Outage Operation; Control System - Secondary Furnace "Add On", "Wood/Oil", "Wood/Electric", "Wood/Oil/Electric" Configurations - Continental HYBRID 150/200 Instructions D'installation Et D'opération

8.3.1 POWER OUTAGE OPERATION

HIGH TEMPERATURES CAN BUILD IN THE DUCT WORK, TO ENSURE AIR CIRCULATING IN A GRAV-
ITY METHOD REMOVE AIR FILTER FROM FURNACE. ENSURE ALL SUPPLY AND RETURN AIR
GRILLS ARE FREE FROM HOUSEHOLD OBJECTS OR DEBRIS, AND ENSURE ANY MANUAL DAMP-
ERS IN THE DUCT NETWORK ARE FIXED IN A FULL OPEN CONDITION.
WITH THE MANUAL DAMPER LOCKED IN OPEN POSITION, THE FURNACE MUST BE MONITORED
NEVER BUILD FLASH FIRES DURING A POWER OUTAGE OPERATION. SEE SECTION 8.9.
In the case of a power outage it is possible to increase the output of the fi rebox by manually adjusting the
primary air control shutter. On the front face of the primary air control box a control arm protrudes out. To
increase combustion push down on this handle, moving it towards the bottom of the clearance slot, keep the
control arm down by swinging the clasp (also mounted to the front of the primary air control box) over top of the
control arm. This will continuously maintain the maximum combustion air being fed into the fi re box (furnace
must be monitored to prevent over fi ring). Although the blower fan will be inoperable in a power out situation,
convection air fl ow through to the house will move under gravity circulation.
The air fi lter must be removed from the fi lter rack when operating in a power out condition to help promote
gravity circulation and prevent excessive heating of the duct work.
8.4 CONTROL SYSTEM - SECONDARY FURNACE "ADD ON", "WOOD/OIL",
"WOOD/ELECTRIC", "WOOD/OIL/ELECTRIC" CONFIGURATIONS
Control of the secondary heat source (either electric or oil) is done by a combination of a selector switch on the
main furnace control panel and a second thermostat located beside and at the same height as the wood fur-
nace thermostat. The selector toggle switch needs to be switched to the appropriate back up furnace installed
(can be switched to either oil or electric depending on energy rates if both backups are installed). The thermo-
stat for the back up heat source should be set 4°F to 5°F (2°C to 3°C) below the setting for the wood thermo-
stat. Thus once the heat from the wood section starts to decline, the corresponding decline in room tempera-
ture will cause the second thermostat to call heat from the secondary heat source. Note that interlocks in the
control system will force the secondary heat source to shut down if the temperature in the supply plenum of the
wood furnace exceeds the set value of the "High Limit" switch (250°F) (121°C).
NOTE
The control of the "Add On" style installation is the same as the fore mentioned paragraph except for the
position of the selector toggle switch being redundant.
BOTH OIL AND ELECTRIC FURNACES HAVE RESET CONTROLS AND PROCEDURES REQUIRED TO
RESTART THE UNITS IF A FAULT HAS BEEN DETECTED AND UNITS LOCKED OUT. ONLY A QUALI-
FIED INSTALLER/SERVICE PERSON SHALL PERFORM THESE RESET PROCEDURES AS A CAUSE
AND REPAIR MUST BE DETERMINED BEFORE THE UNIT CAN BE RESTARTED. FAILURE TO FOL-
LOW THIS STEP COULD RESULT IN PROPERTY DAMAGE, INJURY OR DEATH.
SERVICE PERSONS CAN FIND TROUBLESHOOTING AND RESET PROCEDURE IN THE MANUALS
ACCOMPANYING BOTH THE ELECTRIC FURNACE AND OIL BURNER MODULES.
TO PREVENT OVER FIRING.
73
H3.63
H3.64
W415-1506 / C / 02.15.18
EN