Rheem RGPE series User Manual

COMMUNICATING ECM
MOTOR COMMUNICATIONS
(CONTROL) CONNECTION
(J10) (see Fig 28)
This connector sends and receives
messages to and from the blower motor
through a single peer-to-peer network.
The blower motor does not communi-
cate on the same communications buss
as the furnace, condenser and thermo-
stat. Further, a different communica-
tions protocol is used.
For troubleshooting purposes, follow
the wiring diagram and troubleshooting
flowchart supplied in this manual and
on the inside of the furnace blower
door. Additionally, the pin designations
for the connector are specified below:
PPiinn 11
to com
municating blower
motor
connector Pin 1 (+V)
PPiinn 22
to communicating blower
motor
connector Pin 2 (TX)
PPiinn 33
to communicating blower
motor
connector Pin 3 (RX)
PPiinn 44
to communicating blower
motor
connector Pin 4 (C)
FIGURE 28
15-PIN CONNECTOR; J1 WITH PIN DESIGNATIONS
36

Rheem RGPE series Specifications

General

Brand	Rheem
Model	RGPE series
Category	Furnace
Language	English