Manual
2100-535
Page
41 of 71
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 18.)
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FIGURE 18
FURNACE CONTROL BOARD AND BLOWER CONTROL
* 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.
TABLE 9
230 VOLT MOTOR SPEED TAPS
460 VOLT MOTOR SPEED TAPS
Summary of Contents for W24G1DA
Page 13: ...Manual 2100 535 Page 13 of 71 FIGURE 2A MOUNTING INSTRUCTIONS FOR W42G W48G AND W60G...
Page 16: ...Manual 2100 535 Page 16 of 71 FIGURE 6 COMMON WALL MOUNTING INSTALLATIONS...
Page 26: ...Manual 2100 535 Page 26 of 71 FIGURE 12 GAS PIPE CONNECTION W24G W36G W42G W60G...
Page 57: ...Manual 2100 535 Page 57 of 71 W24G1DA W48G1DA W60G1DA 230 208 60 1...
Page 59: ...Manual 2100 535 Page 59 of 71 W24G1DB W48G1DB W60G1DB 230 208 60 3...
Page 61: ...Manual 2100 535 Page 61 of 71 W24G1DC 460 60 3...
Page 63: ...Manual 2100 535 Page 63 of 71 W30G1DA W36G1DA W42G1DA 230 208 60 1...
Page 65: ...Manual 2100 535 Page 65 of 71 W30G1DB W36G1DB W42G1DB 230 208 60 3...
Page 67: ...Manual 2100 535 Page 67 of 71 W30G1DC W36G1DC W42G1DC 460 60 3...
Page 71: ...Manual 2100 535 Page 71 of 71 W48G1DC W60G1DC 460 60 3...