Lennox G61MPV Service Manual page 43

GenTeq HARNESS CONNECTORS
POWER CONTROL
CONNECTOR J48 CONNECTOR J49
16
1
J48
PIN 1 - Jumper PIN 1 to PIN2 for 120VAC line input only.
PIN 2 - Jumper PIN 1 to PIN2 for 120VAC line input only.
PIN 3 - Ground
PIN 4 - AC Line
PIN 5 - AC Line
FIGURE 11
EMERSON MOTOR HARNESS CONNECTORS
POWER CONTROL
CONNECTOR J48 CONNECTOR J49
16
1
J48
PIN 1 - Jumper PIN 1 to PIN2 for 120VAC line input only.
PIN 2 - Jumper PIN 1 to PIN2 for 120VAC line input only.
PIN 3 - Ground
PIN 4 - AC Line
PIN 5 - AC Line
FIGURE 12
J49
1
PIN 1 - C1
PIN 2 - W / W1
PIN 3 - C2
PIN 4 − Delay
PIN 5 - Cool
PIN 6 - Y1
PIN 7 - Adjust
PIN 8 - 0ut
PIN 9 - 0
PIN 10 - DS(PWM)
PIN 11 - Heat
PIN 12 - R
PIN 13 - EM / W2
PIN 14 - Y / Y2
PIN 15 - G
PIN 16 - Out +
J49
PIN 1 - C1
1
PIN 2 - W / W1
PIN 3 - C2
PIN 4 − Delay
PIN 5 - Cool
PIN 6 - Y1
PIN 7 - Adjust
PIN 8 - 0ut
PIN 9 - 0
PIN 10 - DS(PWM)
PIN 11 - Heat
PIN 12 - R
PIN 13 - EM / W2
PIN 14 - Y / Y2
PIN 15 - G
PIN 16 - Out +
Page 43
Power Choke (L13)
A choke coil is used on G61MPV 5 ton 1 hp units. The
choke is located on the blower housing and is used to sup-
press transient current spikes.
Precautions
If the G61MPV or its electronically controlled blower motor is
improperly or inadequately grounded, it may cause television
interference (commonly known as RFI or radio frequency in-
terference).
This interference is caused by internal switching fre-
quencies of the motor controller. TV interference may
show up as small specks or lines which randomly appear
on the TV screen accompanied by pops or clicks in the sound.
Before attempting any service, make sure the indoor unit is
causing the interference. To check, disconnect power to indoor
unit then check TV for continued signs of interference.
TV interference may be stopped by making sure the mo-
tor is solidly grounded to the cabinet (metal to metal) and
by making sure the cabinet is solidly grounded. If TV in-
terference persists, make sure the television (and all af-
fected RF appliances) are moved away from the G61MPV.
Also make sure affected appliances are connected to a sepa-
rate electrical circuit.