Manual
2100-590A
Page
39 of 67
32. INDOOR BLOWER OPERATION
All models have multiple speed direct drive blower
motors. If supply and return ducts are connected to the
unit, the ducts must be of adequate size. Refer to the
appropriate blower tables. See Tables 10, 11, 12, 13,
14 and 15 for maximum static pressures acceptable.
Note the minimum CFM for cooling operation.
If voltage and duct design permit, (see blower tables)
single speed operation can be achieved as follows:
BLOWER MOTOR SPEED CHANGE
1. Disconnect power supply to unit.
2. Place desired blower motor speed lead wire to
“COOL” terminal of integrated furnace control
board.
3. Place desired blower motor speed lead wire to
“HEAT” terminal of integrated furnace control
board.
4. Place unused blower motor speed lead wire to
“UNUSED” terminal of integrated furnace control
board.
5. Energize the system in cooling and heating modes to
check for proper blower operation.
If it is desirable to have both HEAT/COOL blower
motor speed at the same speed, install a jumper wire
between “HEAT” and “COOL” terminals of the
integrated furnace control board, and place both unused
motor speed lead wires on the two “UNUSED” terminals
on the integrated furnace control board. (See Figure 20.)
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FIGURE 20
FURNACE CONTROL BOARD AND BLOWER CONTROL
TABLE 9
230 VOLT MOTOR SPEED TAPS
460 VOLT MOTOR SPEED TAPS
* NOTE: On 460 Volt motors, there are two motor isolation leads. The orange must connect with the black high
speed blower motor lead wire for medium and low speed blower operation. The purple wire must
connect with the blue medium speed blower motor lead wire for low speed blower operation. This is all
automatically accomplished with blower relays HSBR, MSBR and LSBR, and speed changes are all
made by changes at the integrated furnace control board.
Summary of Contents for W24G2-A
Page 13: ...Manual 2100 590A Page 13 of 67 FIGURE 2A MOUNTING INSTRUCTIONS FOR W42G W48G AND W60G ...
Page 16: ...Manual 2100 590A Page 16 of 67 FIGURE 6 COMMON WALL MOUNTING INSTALLATIONS ...
Page 25: ...Manual 2100 590A Page 25 of 67 FIGURE 14 GAS PIPE CONNECTION W24G W36G W42G W60G ...
Page 51: ...Manual 2100 590A Page 51 of 67 W24G2 A 230 208 60 1 ...
Page 53: ...Manual 2100 590A Page 53 of 67 W24G2 B 230 208 60 3 ...
Page 55: ...Manual 2100 590A Page 55 of 67 W24G2 C 460 60 3 ...
Page 57: ...Manual 2100 590A Page 57 of 67 W30G2 A W36G2 A W42G2 A W48G2 A 230 208 60 1 ...
Page 59: ...Manual 2100 590A Page 59 of 67 W30G2 B W36G2 B W42G2 B W48G2 B 230 208 60 3 ...
Page 61: ...Manual 2100 590A Page 61 of 67 W30G2 C W36G2 C W42G2 C W48G2 C 460 60 3 ...
Page 63: ...Manual 2100 590A Page 63 of 67 W60G2 A 230 208 60 1 ...
Page 65: ...Manual 2100 590A Page 65 of 67 W60G2 B 230 208 60 3 ...
Page 67: ...Manual 2100 590A Page 67 of 67 W60G2 C 460 60 3 ...