Graco Therm-O-Flow 200, Instructions-Parts List Manual, Page: 50 / 109

Repair
Replace Replace Replace Pump Pump Pump RTD RTD RTD
1. Turn the main power switch off.
2. Remove the screws that hold the front shroud in
place and remove front shroud.
3. If sensor wire is connected to electrical enclosure,
disconnect it.
4. Loosen the clamp (321) holding sensor on pump.
5. Tie the leads of the new sensor (320) to the old
sensor and remove the old sensor. The leads of
the new sensor will be easily drawn through the
conduit for reconnecting.
6. Replace the sensor (320) in clamp (321):
a. Place sensor approximately 30° counter
clock-wise from pump outlet.
b. Tighten clamp (321).
7. Re-connect sensor wire to electrical enclosure.
Replace Replace Replace MZLP MZLP MZLP Fuse Fuse Fuse
Each MZLP module comes with the following fuses:
J 1
J 2
J 3
J 6
J 5
J 7
F10 F9 F8 F7
F6
F5
F4 F3
F2
F1
Figure 30 Fuse Locations
Fuse Fuse
Fuse Kit
Kit
Kit Fuse
Fuse
Fuse
Part Part
Part
F1, F2 250VAC, 25A, long, white
ceramic 24V289
F3-F10 250VAC, 8A, fast acting, clear
glass
Spare fuse kit included with system.
NOTICE NOTICE NOTICE
To prevent system damage, always use fast
acting fuses. Fast acting fuses are required for
short-circuit protection.
1. Turn the main power switch off.
2. Open electrical enclosure door.
3. Use a proper non-conductive fuse puller tool to
remove the blown fuse.
NOTICE NOTICE NOTICE
Using an improper tool, such as screw drivers
or pliers, may break glass on fuse.
Note
F1 and F2 are white ceramic and indicate
25A on the barrel.
Note
F3-F10 are clear glass and indicate 8A
on the barrel.
4. Use a proper non-conductive fuse puller tool to
install the new fuse
NOTICE NOTICE NOTICE
Using an improper tool, such as screw drivers
or pliers, may break glass on fuse.
5. Close electrical enclosure.
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