6
HEATER AND RELAY LIGHTS
1. Heater LED’s: Cycle On When Heaters Are On
Small (1/8”) light-emitting diodes (LED’s) are driven by a current sen-
sor (one for each heater in the dryer). They can, in conjunction with
relay lights explained below, determine if heater(s) are burned out or
if a relay is at fault.
2. Relay Lights: Cycle Off When Heaters Are On
Large (1/4”) neon lights indicate proper opening and closing of each
heater relay. When relay lights are “on”, the relays are “open” and no
power is applied to the heaters (Heater LED’s Off). When relay lights
are “off”, the relays are “closed” and power is applied to the heaters
(Heater LED’s On). If one relay light stays “on” while the others are
off, then that pole is stuck “open” and should be replaced. The heater
LED’s will still function as normal as they are “double switched”.
NOTE:
If all relay lights operated normally yet one of the heater LED’s will
not come on, check the suspected heater with an amp clamp. Normal
reading should be 9 - 12 amps depending on element size and voltage
available. If readings indicate no current flowing, then the heater will
require replacing.
OPERATION
INCREASING THE LIFE OF YOUR WRAP:
The following actions will increase the life of your wrap and help to prevent
premature failure.
- Space your mugs at least 2” apart in oven, this will allow for more
even heating and airfl ow between mugs. Also this will prevent mugs
from banging together reducing the life of your wrap.
- Do not drop or bang mugs with wraps together. This can cause
small tears in your wrap leading to tearing of the wrap.
- Only use on items the wrap is rated for; the standard HMWII is de-
signed for both 11oz and 15oz mugs. Use of these wraps for anything
else may shorten the life of the wrap and could result in damage such
as tearing. For unusually sized or shaped items please utilize a wrap
custom made for your application.
- Sharp fi ngernails and rings can snare/tear a wrap.
If the above procedures are followed and care is taken when handling these
wraps you should expect to get hundreds of cycles from your HMWII.
7
OPERATION
ON/OFF POWER BREAKER
IN/OUT (I/O)
CIRCUIT BREAKERS
Turns all dryer power and
control circuits on and off.
Provides protection to
contactor coil only. Dryer
MUST be externally fused
with appropriate size fuse
or circuit breaker (FLA x
125% = fuse size). See
the following sheet for
fuse size to be used for
each dryer.
Provide protection for
control and heater cir-
cuits only!
DO NOT
use
for ON/OFF control! If a
breaker trips, determine
the cause before resum-
ing operation.
DOOR ADJUSTMENT
The dryer is equipped with adjustable doors located at each end of the
oven chamber inside the fume hoods. The maximum opening is 6 inches
(12” in the case of bottle dryers) and may be pulled down to belt level
on standard dryers (6” minimum opening on bottle dryers). Always run
the doors as far closed as safely possible (typically allow 1-1/2” above
product height) to contain the oven heat and help eliminate problems
caused by air drafts in the shop. Exercise caution when adjusting the
door height when the oven is hot, use a rag or wear a glove to prevent
burning your fingers.
