Graco E-Flo iQ, Operation Manual

Page: 29 / 102

Setup
333587B 29
4. Enter a temperature for the zone setback
temperature ( ) column. This is the setback that
the zone goes to when the heat is in setback. The
temperature units can be changed from °C to °F in
the Advanced settings screens. See
Advanced
Setup Screen 2
on page
32
.
NOTE:
If you change a setpoint temperature to a value
below the current setback temperature, that value
becomes the new setback temperature. If you increase
a setback temperature to a value above the current
setpoint temperature, that value becomes the new
setpoint temperature.
5. The column on the right side of the zone setback
temperature column is for enabling the zone. Use
the key to enable zones.
NOTE:
When enabled, the zone will be displayed on the
Heat Run screen. When the box is disabled, the zone
will not be displayed on the Heat Run screen and the
errors for that zone will be ignored. See
Heat Run
Screen
on page
42
.
6. Press the soft key to save your changes and
exit editing mode.
Apply a Heat Setting Globally
While still in Heat Setup screen 1, press the globalize
soft key to apply a setpoint or setback heat setting
across all of the heat zones.
A message will appear prior to completing the change.
Press the soft key to complete applying the
selected parameter. Press the soft key to cancel
the globalization.
Tandem Heat Setup Screen 1
Read all of
Heat Setup Screen 1
starting on page
28
before reading this section.
The Heat Setup screens for Ram and Tandem are the
same in appearance except Tandem has an additional
column to the right for the second pump.
One of the advantages of a Tandem system is
continuous operation if a pump needs to be shut down
for any reason, such as changing a drum of material. In
a heated system, it is equally important to maintain heat
for the entire system when one of the pumps is shut
down.
NOTE:
Heated systems have a red and black Power
Junction Box Switch (AK) that removes power to
everything EXCEPT heat on the ram supply unit. This
allows a ram supply unit to continue to heat the system
with the power to the ram turned off. See
Power
Disconnect
on page
14
for more information.
The Tandem Heat setup screen 1 allows you configure
how you want heat to be controlled for the entire system.
Heat 1 in the Menu Bar is for the Heat Control Box (AX)
on the Pump 1 ram and Heat 2 is for the Heat Control
Box (AX) on the Pump 2 ram. The heat control box on
each ram controls heat to its pump, platen, and the hose
that runs from the pump to the Ball Valve (S) on the
Tandem Block (R).
Since all components from the Tandem Block R) to the
Dispense Valve (B) are shared by both pumps and need
to be heated continuously while the system is in
operation, you can designate one pump to control the
shared components at this screen.
NOTE:
The cables for heat from the shared components
must be connected to the Heat Control Box (AX) on the
designated pump.