I n s t a l l a t i o n , O p e r a t i o n , & M a i n t e n a n c e M a n u a l
4
www.herrmidifier-hvac.com
Herrtronic
®
Model 6500
SECTION II UNIT OPERATION
Basic Operation Overview
Controlled humidification requires a very precise control
system. The Herrtronic 6500 utilizes a microprocessor
based control system to monitor performance and maintain
capacity. The humidifier evaluates the operation and alerts
the operator to problem conditions and prevents undesirable
operation. (Refer to points on table below.)
1.
On initial start-up or a call for humidity, the humidifier will
attempt to fill to its full load amp rating. The unit will not
necessarily have a full cylinder of water when capacity is
reached. Water level depends on the conductivity of the
water. The more conductive the water, the more current
that can be passed through and will result in a lower water
level during operation. If the water is not conductive enough
to allow the unit to reach full load amps (full capacity) on
the initial fill, the cylinder full module will stop the fill valve
until the water conductivity increases. The unit will operate
in this mode with repetitive fill and boil cycles until the
unit has concentrated enough minerals in the water to
reach the rated amp level. Once full load amp (FLA) has
been reached, the fill valve will shut off. The unit will now
compare the rate of change of amp draw to a time cycle.
2. Once the water in the cylinder is mineral laden and hence
very conductive, a drain cycle will be initiated. Some or
all of the water in the cylinder will be drained to flush away
the minerals. After the drain cycle and/or the time cycle is
completed, the unit will refill and start the process over.
These cycles will repeat until:
•
The call for humidity is satisfied.
• The cylinder is used up.
• A fault condition occurs.
3.
Over a very long time, as the electrodes in the cylinder are
coated with minerals, the water level will slowly increase
to the cylinder full level. Concentration will no longer allow
the unit to reach FLA. The unit will eventually display an
“end of cylinder life” fault by blinking the LED on the front
of the unit at ½ second intervals. Replacement of the
cylinder is required at this point in order for the unit to
continue operating at its rated capacity.
Part No.
Qty.
Description
267460-001
1
Herrtronic 6500-1
267460-002
Herrtronic 6500-2
265160-001
1
Humidistat
265160-001
1
Humidistat (Use as High Limit)
AH-297
1
Air Proving Switch
EST-1138
2
Screw, Lag 5/16 x 2” Long
EST-1563
2
Clamp, Hose, 3/4” - 1 1/2”
EST-206
12”
Tubing, Clear PVC Vinyl, 1” OD
EST-207
1
Clamp, Hose SST
267949-001
1
Installation & Operation Manual
General Time of Operation
1.
2.
3.
High Drain
Threshold
Capacity
Set Point
Low Drain
Threshold
Cylinder
Full
Steadily Increase
Water Level
W
at
er L
ev
el
Output
