Indoor Blower Speeds
1.When the thermostat is set to AN 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.
Accessory Relay Field Wiring (K212)
1 2 3
4 5 6
7 8 9
AB
ACCESSORY RELAY
24V 125MA 1/4" QUICK CONNECT TERMINALS
RELAY CONTACTS RATING 8 AMPS @ 120V MAX. 24V COIL
Figure 10
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).
| CBWMV Control Box | |
| TERMINAL BLOCKS | |
| TB2 | TB13 |
| (HOT) | (NEUTRAL) |
|
| TRANSFORMER |
|
| T1 |
|
| CB8 |
DOOR |
| CIRCUIT |
| BREAKER | |
INTERLOCK |
| |
|
| |
SWITCH |
|
|
BDC3 |
| WIRING |
VARIABLE |
| |
| STRAIN | |
SPEED |
| |
| RELIEF | |
CONTROL |
| |
| BUSHING | |
|
| |
ACCESSORY |
| |
FIELD | TB66 |
|
WIRING | TB67 |
|
TERMINAL | TERMINAL | |
BLOCKS |
| BLOCK 24V |
|
| K212 |
TERMINAL |
| RELAY |
BLOCK TB1 |
|
|
Figure 11
Page 10
505047 09/06
