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505047 09/06
Indoor Blower Speeds
1. When the thermostat is set to FAN ON," the indoor
blower will run continuously at approximately 38% of
the second−stage cooling speed when there is no cool-
ing or heating demand.
2. When the CBWMV is in the heating mode, the indoor
blower will run on the heating speed designated by the
position of the HEAT pin.
3. When there is a cooling demand, the indoor blower will
run on the cooling speed designated by the position of
the COOL pin.
Accessory Field Wiring (K212)
Connect field wiring to 3PDT relay K212 (Lennox part
67K66) as shown in figure 10.
Figure 10
Accessory Relay Field Wiring (K212)
1
4
7
24V 125MA 1/4" QUICK CONNECT TERMINALS
RELAY CONTACTS RATING 8 AMPS @ 120V MAX. 24V COIL
AB
2
5
8
3
6
9
ACCESSORY RELAY
Accessory Field Wiring (TB66 & TB67)
Connect wires from accessories (e.g. powered air clean-
ers, humidifiers) to terminal blocks TB66 and TB67 (see
detail in figure 11).
Figure 11
CBWMV Control Box
DOOR
INTERLOCK
SWITCH
K212
RELAY
CB8
CIRCUIT
BREAKER
TRANSFORMER
T1
TERMINAL BLOCKS
TB2 TB13
(HOT) (NEUTRAL)
WIRING
STRAIN
RELIEF
BUSHING
ACCESSORY
FIELD
WIRING
TERMINAL
BLOCKS
TB66
TERMINAL
BLOCK TB1
BDC3
VARIABLE
SPEED
CONTROL
TERMINAL
BLOCK 24V
TB67