Marley Engineered Products WMGF480 - Manual (Page 3)

3
MAINTENANCE
The heater requires no special maintenance other than
occasional cleaning to prevent excess accumulation of dust and
lint on surfaces. It is important for the reflectors to be kept clean
to obtain the maximum radiant output. If used as a movable unit,
the cart and cord should be checked periodically to make sure the
hardware remains tight and cart and cord are not damaged. Do
not continue to use the heater if damaged.
Element Replacement (Contact Factory for Part Number.)
1. Remove Terminal Box Cover.
2. Disconnect lead wires from heater terminals.
3. Remove safety grilles.
4. Remove retainer screw located on the reflector at the terminal
end.
5. Loosen (2), 3/8" nuts from the terminal box bracket located on
the back of the heater and slide the entire heating element
assembly out of the reflector assembly.
6. Remove wires and jumper straps as required to replace the
failed heating element(s).
7. Remove bulkhead fitting nuts and washers.
8. Remove failed element and replace with a new element.
Replace only with Marley Engineered Products elements.
Use of other elements will cause excess temperatures
inside terminal box.
9. Place gasket on the bulkhead fitting and insert terminals and
fittings into the element holes in the terminal box.
10. Place washers and nuts on bulkhead fittings and tighten.
11. Replace wiring and jumper straps.
12. Reassemble by following the reverse procedures
(steps 5 through 1)
ELECRIC SHOCK HAZARD. Disconnect all power before
servicing or replacing heating elements.
a WARNING
!
11-3/4"
(298.45mm)
11-3/8"
(288.925mm)
28-1/2"
(723.9mm)
1.5 & 2.0 KW 4.5 KW
11-3/4"
(298.45mm)
11-3/8"
(288.925mm)
49"
(1244.6mm)
DIMENSIONS