Graco Therm-O-Flow Plus, Instructions Manual

Page: 24 / 82

24 309085
Operation
Using the 7-Day Timer in the Optional Pendant
Control
Each Night:
Follow this procedure when the 7-day timer is active:
1. Leave the control main power switch ON.
2. Leave the HEAT switch (V) on the electrical control
panel ON.
3. Follow the procedures to set and operate the
7–day timer on page 36.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure (page 23).
4. Relieve the supply unit pressure.
NOTE: The auto depressurization circuit relieves air
pressure from the supply unit when power is turned off.
5. Leave the dispense valve open and over an empty
waste container, to relieve pressure that could
build up while the system is heating.
6. Make sure that all material valves are open.
7. Make sure the pump air supply valve (214, Fig. 2)
has been turned OFF.
The system is ready for start-up with the 7-day timer.
To override the current program time period, manually
turn each heat zone OFF or ON.
9513A
Fig. 8
V