Miller Manufacturing, Glencoe, MN 55336 USA • www.miller-mfg.com
Read Instructions Thoroughly Before Use
INSTRUCTIONS FOR THE
LOCKNDRY® CORDSET
FEATURES
- Plugs into any normal 3-prong outlet
- Mates with LOCKNDRY® plugs to form a
water-resistant seal
- Keeps connection from separating during use
- Second, locking nut for secure connections
INSTRUCTIONS
(1) Insert the plug
into the receptacle
just as you would a
normal extension
cord making sure
the plug is fully
inserted.
(2) Slide the large
nut forward
to engage the
threads on the
plug.
(3) Rotate the nut
to tighten the
plug against the
receptacle.
(4) Slide the
second, thinner,
red nut forward
to engage the
threads.
(5) Rotate the
red nut snugly
against the larger
nut.
PAIL AND BIRD BATH DE-ICER
Item #250D, # 300, # WBU300
304398
SPECIFICATIONS
-200 watts, 120 VAC, 60 Hz
CAUTION - To provide
continued protection
against electric shock
1. Have a qualified electrician install a properly
grounded receptacle outlet, acceptable for
outdoor use and protected from snow and rain,
immediately adjacent to the location where the
heater will be used.
2. Route the supply cord and locate the heater so as
to be protected from damage by animals.
3. Do not use extension cords.
4. Inspect cord before using.
5. Unplug heater at receptacle outlet when not in use.
6. Store heater indoors after winter season.
7. Heating element MUST be completely submerged
while in use to prevent risk of fire hazard.
8. Do not tether unit.
9. Connect only to a circuit that is protected by a
Ground Fault Circuit Interrupter (GFCI). This is a
sensitive device that cuts off the electricity if there
is any leakage of current. This device may be
obtained from any electrician or hardware store.
IMPORTANT
This product is approved for use only with the
LOCKNDRY
TM
Power Supply Cord. The plug on
this product is specially designed to mate with the
LOCKNDRY power supply cord to form a water-
resistant seal.
INSTALLATION
1. The unit should be placed in a pail or bird bath
with water and then plugged into a Ground Fault
Circuit Interrupter (GFCI) protected circuit.
2. This de-icer is UL approved for use only with the
LOCKNDRY detachable power supply cord. Do
not use extension cords.
3. The unit is thermostatically controlled so that it
will not turn on until the temperature drops to
around 40°F. If it is removed from the pail or bird
bath, it will turn on and then shut itself off in
about 60-90 seconds. It will then cycle on and off
in this manner.
4. The safety thermostat should be regarded as
an emergency backup, therefore, install the
de-icer so that it will not come into contact with
combustible material.
5. For proper operation, keep the water level above
the de-icer.
6. Make sure that the electrical connections are
staked or positioned to keep them out of snow
or water.
ADJUSTABLE CLAMP
INSTRUCTIONS (FOR
250D ONLY)
1. Route the power cord
through the bracket as
shown in Figure 1.
2. Using the bolt and nuts
provided, tighten the
bracket until the lock nut is
snug against the mounting
surface.
3. Tighten the two hex nuts against the bracket to
complete installation.
MAINTENANCE
Do not allow lime or other impurities in the water to
build up on the heating element. The frequency of
cleaning depends directly upon the composition of
your water supply. To remove buildup, first remove
the metal guard by removing the center screw and
nut. Soak the heating element in vinegar or a lime-
removing cleaner obtained at any farm or hardware
store, and use a non-metallic brush to remove
any remaining buildup. Inspect the element for
any cracks before reinstalling the guard. Be sure
the screw and nut are attached firmly. During the
heating season, empty and refill your bird bath
regularly to prevent buildup.
WARRANTY
This de-icer is warranted for a period of 12 months
from the date of purchase. If you believe your de-
icer is defective and still within the warranty period,
return it to the factory or place of purchase for
inspection and possible replacement. The warranty
is voided if (1) the cord has been modified in any
way, (2) excessive deposits have been allowed to
accumulate on the heating element, or (3) there is
evidence of general abuse such as animals chewing
on the cord. This warranty does not cover incidental
or consequential damage resulting from either a
defect in parts, materials, or operation failure. Some
states do not allow the exclusion or limitation of the
above damages so the above limitation may not
apply to you. No agent, employee, or representative
of Miller Manufacturing has any authority to
bind Miller Manufacturing to any affirmation,
representation or warranty directed towards any
products bearing the Miller Manufacturing name,
except as stated herein. This warranty gives you
specific legal rights--you may also have other rights
which vary from state to state.
Figure 1