E528 Product Guide
Rev 8.0 12/16/2016
11
RS485 centrally controlled system), door/window switch, or external PIR
wiring within the electrical box (Figure 8). Plug the 6-pin low voltage
harness onto the e528 low voltage comm. / device connection header.
2. Use wire nuts to connect the 10-pin Molex wiring harness to the power and
valve/fan control signal wires within the electrical box.
3. Plug the pre-wired 10-pin connector into the female receptacle at the back
of the e528.
4. Hook the tabs at the top rear of the e528 housing into the matching
depressions at the top of the mounting plate and rotate the bottom of the
housing toward the wall until it snaps into place on the mounting plate.
5. Secure the housing to the mounting plate with the two small screws
removed in Step 1 of the
Mounting
section.
6. Apply power to the e528 by closing the applicable supply breaker. Verify
that the e528 powers up. Several values should begin appearing on the
LCD display.
7. Once installed and connected to power, the e528 Digital Thermostat
typically requires some configuration, specifically:
•
If installing the e528 as part of a networked, centrally controlled EMS,
a unique network address must be assigned to the e528. This is done
by entering Service Parameter mode on the e528 and changing the
values of Parameters 10, 11, and 12, which hold the 5-digit network
address of the e528. This 5-digit number is typically the room number
in most applications. A “Room List” document is typically available that
lists all rooms and the associated values to set into Parameters 10, 11,
and 12. Refer to Reference A, Section 5.1, for complete instructions for
setting the e528 network address.
•
If the particular HVAC equipment installed was not known when the
e528 was shipped, the fan and heat/cool control outputs of the e528
must be configured to correctly operate the installed HVAC equipment.
Setting the appropriate HVAC control parameters of the e528 to the
required values and resetting the device reconfigures the e528 to
properly control most HVAC units. Refer to Reference A, Section 5.2,
for instructions on changing the e528 HVAC related parameters.
NOTE:
If installing 01-9560 64K memory e528 Digital Thermostats, be aware
that these devices support the INNCOM ES-1 Flash Memory Module. The ES-
1 provides the ability to copy HVAC related parameter settings from a “golden”
e528 that has previously been installed in a room and had its HVAC related
parameters set correctly and verified operationally with the HVAC equipment.
Once these settings are copied to the ES-1 module, plugging the ES-1 into a
new thermostat automatically uploads the settings.