29
Model X13
®
& Endura
®
Pro
Standard ECM
Motor Communication Diagnostics
Start with the manufacturer’s literature to confirm
proper set-up, connections and voltage. It is not
required that all terminals on the motor have a
program. If the low-voltage communication is
applied to an unprogrammed terminal, the motor
will not operate, which is normal.
Initiate a demand from the thermostat and
check the voltage between the common and
the appropriate motor terminal 1- 5. Confirm the
meter is set to the voltage identified from the
manufacturer’s literature (see Figures 9 and 10 on
the next page).
If the low voltage communication is not
present, check the demand from the thermostat.
Also check the output terminal and wire(s) from
the manufacturer’s control board or relays to the
motor.
If the motor has proper high voltage as
identified in the previous section, and proper low
voltage to a programmed terminal, and is not
operating, follow the next section on “Replacing
the ECM Control Module” on page 31.
The X13 & Endura Pro motors can be communicated
through AC or DC low voltage. AC voltage is typically
24VAC and DC voltage can be between 9-23VDC (see
Figures 9 and 10 on the next page).
1.
2.
To Next Page
Loading...
