Nyle Systems L200 Series User manual

www.nyle.com
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800-777-6953
Nyle Systems
12 Stevens Rd
Brewer, ME 04412
User Manual
L200 Series
© Nyle Systems LLC
L200 Manual Version 3.1

LIMITED WARRANTY: The equipment supplied by Nyle Systems is warranted to be free from
defects in workmanship and materials for a period of one year from the date of the original
installation under normal use and maintenance, or 15 months from the date of delivery,
whichever comes rst. A new or remanufactured part will be supplied by Nyle Systems if the
defective part is rst returned to Nyle Systems for inspection. The replacement part assumes
the unused portion of the warranty.The warranty does not include labor or other costs incurred
for diagnosis, repairing or removing, installing or shipping the defective or replacement
part(s). Nyle Systems makes no warranty as to the tness of the equipment for a particular use
and shall not be liable for any direct, indirect or consequential damages in conjunction with
this contract and/or the use of its equipment. Buyer agrees to indemnify and save harmless
Nyle Systems from any claims or demands against Nyle Systems for injuries or damages to the
third parties resulting from buyer’s use or ownership of the equipment. No other warranties,
expressed or implied, will be honored unless in writing by an authorized ocer of Nyle Systems.
Model________________________________SerialNumber____________________________
Date Purchased _________________________________________________________
Warranty for L200 Dry Kiln

Table of Contents
Safety Guidelines....................................................................................................................................................................................................... 1
Precautions.................................................................................................................................................................................................................. 1
Electrical Grounding................................................................................................................................................................................................. 1
Your Kiln........................................................................................................................................................................................................................ 2
How your Dehumidication Kiln Works ............................................................................................................................................................ 2
Floors ............................................................................................................................................................................................................................. 2
Ceilings.......................................................................................................................................................................................................................... 2
Doors.............................................................................................................................................................................................................................. 2
Construction Guidelines......................................................................................................................................................................................... 3
Equipment Installation............................................................................................................................................................................................ 4
Figure 1-1 Chamber Plan........................................................................................................................................................................................ 5
Figure 1-2 Kiln Chamber Section C ..................................................................................................................................................................... 6
Figure 1-3 Kiln Chamber Section D..................................................................................................................................................................... 7
Figure 1-4 Kiln Chamber Recommended Dimensions ................................................................................................................................ 8
Figure 1-5 Kiln Chamber Wall Details................................................................................................................................................................. 9
Figure 1-6 Kiln Chamber Front Elevation........................................................................................................................................................10
Figure 1-7 Kiln Chamber Door Framing ..........................................................................................................................................................11
Figure 1-8 Kiln Chamber Door Section E ........................................................................................................................................................12
Figure 1-9 Kiln Chamber Door Section F ........................................................................................................................................................13
Figure 1-10 Deectors and Baes ....................................................................................................................................................................14
Figure 1-11 Equipment Front..............................................................................................................................................................................15
Figure 1-12 Equipment Back ...............................................................................................................................................................................16
Figure 1-13 Fan Diagram ......................................................................................................................................................................................17
Wet and Dry Bulb, Controller Installation and Use......................................................................................................................................18
Sensor Technology..................................................................................................................................................................................................18
Dry Bulb Sensor .......................................................................................................................................................................................................18
Wet Bulb Sensor.......................................................................................................................................................................................................18
L200S Kiln Controller..............................................................................................................................................................................................19
Figure 2-1 L200S Controller.................................................................................................................................................................................19
How L200S Control Works....................................................................................................................................................................................19
Wet Bulb Installation..............................................................................................................................................................................................19
Figure 2-2 Wet Bulb ................................................................................................................................................................................................19
Using L200S...............................................................................................................................................................................................................20
Figure 2-3 Controller Display...............................................................................................................................................................................20
Parameters.................................................................................................................................................................................................................20
Settable Parameters ...............................................................................................................................................................................................20
Serial Interface..........................................................................................................................................................................................................20
Alarm Conditions / Messages .............................................................................................................................................................................21
Figure 2-4 Wiring .....................................................................................................................................................................................................22
Technical Specications........................................................................................................................................................................................23
L200M Kiln Controller............................................................................................................................................................................................24
Figure 2-5 L200M Controller................................................................................................................................................................................24
How L200M Works ..................................................................................................................................................................................................24
Figure 2-6 Wet Bulb ................................................................................................................................................................................................24
Wet Bulb .....................................................................................................................................................................................................................24
Timber Probes...........................................................................................................................................................................................................25
Probe Placement .....................................................................................................................................................................................................25
Figure 2-7 Correct Probe Placement ................................................................................................................................................................25
Figure 2-8 Incorrect Probe Placement .............................................................................................................................................................25
Power On....................................................................................................................................................................................................................26
Figure 2-9 L200M Display.....................................................................................................................................................................................26

Parameters.................................................................................................................................................................................................................26
Settable Parameters ...............................................................................................................................................................................................26
Alarm Conditions / Messages .............................................................................................................................................................................27
Serial Interface..........................................................................................................................................................................................................27
Parameters.................................................................................................................................................................................................................27
Figure 2-10 Table of Wood Groups by Species..............................................................................................................................................28
Figure 2-11 Wiring for L200M..............................................................................................................................................................................29
Figure 2-12 Technical Specications ................................................................................................................................................................30
Drying Lumber .........................................................................................................................................................................................................31
Loading the Drying Chamber.............................................................................................................................................................................31
Placing Stickers and Loading Lumber..............................................................................................................................................................31
Insuring Proper Airow.........................................................................................................................................................................................31
Drying Schedules ....................................................................................................................................................................................................31
Figure 3-1 Wood Groups.......................................................................................................................................................................................32
Figure 3-2 Lumber Types ......................................................................................................................................................................................32
Moisture Removal Rates .......................................................................................................................................................................................32
Figure 3-3 Moisture Removal Rates ..................................................................................................................................................................32
L200 Drying Schedules..........................................................................................................................................................................................32
Figure 3-4 Drying Schedules ...............................................................................................................................................................................33
Figure 3-5 Drying Rates (Metric) ........................................................................................................................................................................34
Figure 3-6 Drying Rates (North American Measure)...................................................................................................................................35
Kiln Sample Boards.................................................................................................................................................................................................36
Uses for Sample Boards.........................................................................................................................................................................................36
Taking Samples ........................................................................................................................................................................................................36
Drying Rate Index (DRI) ........................................................................................................................................................................................38
Figure 3-7 Nyle Drying Chart ..............................................................................................................................................................................40
Figure 3-8 Nyle Drying Chart ..............................................................................................................................................................................41
Drying Tips ................................................................................................................................................................................................................42
Accessories ................................................................................................................................................................................................................43
Powered Vent Accessory Kit ................................................................................................................................................................................43
Installation .................................................................................................................................................................................................................43
Figure 4-1 Power Vent Chamber Diagram......................................................................................................................................................44
Figure 4-2 Power Vent............................................................................................................................................................................................44
Figure 4-3 Fan Kit.....................................................................................................................................................................................................45
Figure 4-4 L200M Serial Interface......................................................................................................................................................................46
Figure 4-5 Spray System Kit .................................................................................................................................................................................47
The Nyle Systems Kiln Store ................................................................................................................................................................................48
Maintenance, Reference Diagrams and Warranty .......................................................................................................................................49
General Maintenance for L200 ...........................................................................................................................................................................49
Air Inlet Filters...........................................................................................................................................................................................................49
Refrigerant Charging Procedure L200 ............................................................................................................................................................49
Controller Factory Setting....................................................................................................................................................................................50
Figure 5-1 Kiln Cart Layout...................................................................................................................................................................................51
Figure 5-2 Kiln Cart Assembly.............................................................................................................................................................................51
Figure 5-3 Door Gasket Installation ..................................................................................................................................................................52
Figure 5-4 L200S Control Wiring ........................................................................................................................................................................53
Figure 5-5 L200M Power and Control Wiring ................................................................................................................................................54
Figure 5-6 L200 Wiring...........................................................................................................................................................................................55
Appendix....................................................................................................................................................................................................................56
Terminology ..............................................................................................................................................................................................................56
Notes............................................................................................................................................................................................................................57

Service Log
Issue Description Date Servicer

1
Do not operate unit if it or any of its parts:
• Have been expose to re.
• Have been submerged in water or exposed to
ooding.
• Have signicant interior or exterior damage.
In the case of any of the above, have the unit serviced by a
qualied professional before continuing operation.
Unit must be grounded.
Failure to ground will result in unreliable
preformance or an inoperative unit. Ground by
connecting unit to a grounded metal, permanent
wiring system. Grounding must be in accordance
with national and local electrical codes. Please
contact your municipal oces for more information
on building codes.
Safety Guidelines
Precautions
Electrical Grounding
Read through entire manual before installing, operating, or servicing this unit.
Failure to follow any steps or guidelines could result in personal injury, death, destruction
of property or may cause the unit to become inoperable. This manual must be kept with the unit at all times.
Refrigerant!
• Unit contains R-134a refrigerant under high
pressure. Refrigerant must be recovered to relive
pressure before servicing.
• DO NOT use unapproved refrigerants, substitutes
or additives.
• Failure to abide by these guidelines can result in
death, injury and property damages.
• Contact Nyle’s service department for more
information on refrigerant options.
Electrical Shock!
• Turn off power to unit
before service.
•Make sure wires are labeled
before disconnecting.
• Test unit after reconnecting
wires.
• Failure to do the above could result in death or injury.
• DO NOT purge or
pressurize this system with
oxygen to test for leakage.
Using oxygen may cause
explosive reaction.
Explosion Hazard!
High Temperatures!
• Kiln chamber can reach
internal temperatures of
over 90°F. working in these
temperatures can cause heat stroke and minor burns.
• Pregnant women, children, the elderly and those
with signicant health issues are at higher risk of heat
stroke and must be supervised in high temperatures.
• Kiln operators should check for temperature and
take proper safety precautions before entering the
kiln chamber.

2
Dehumidication lumber drying with a Nyle Lumber
Drying System is similar in many ways to drying
lumber in a conventional dry kiln. The lumber is
stacked in a chamber and air is circulated through it
at a controlled temperature and humidity in order to
maintain the proper drying rate for the species and
thickness.
As wood dries water evaporates from the wood
causing humidity to increase. A conventional system
exhausts this moisture laden air to the outside.
A dehumidication system uses a refrigeration
system to condense the water out of the air. A
dehumidication system thus recovers the heat used
to evaporate the water and eliminates the need to
vent to get rid of this water. This results in very large
energy savings.
The Nyle System includes a method of heating the
lumber which supplements the dehumidication
system. The supplemental heater is used to heat
during the initial warm up and, sometimes, when
temperature increases are desired during the cycle.
The Nyle System includes a circulating fan system.
This system establishes airow within the chamber.
This airow is the medium by which the heat
energy is carried to the lumber, and also how the
evaporated moisture is carried back to the machine.
The speed and uniformity of drying is related to this
air ow.
The Nyle System also includes a vent system. The
vents are used to keep the maximum temperature
from exceeding that required by the drying
schedule.
The Nyle System also often includes some type
of humidication system that is used for lumber
conditioning at the end of drying and occasionally
for increasing humidity during intermediate drying
steps or equalization.
Concrete oors with insulation installed underneath
is recommended for best results. However if the
kiln is going to be on an existing concrete oor,
the insulation may be omitted. Concrete must not
extend beyond the kiln walls.
Wood oors may be used but must be built to
construction guidelines (see Pg 3)
If the kiln chamber is a freestanding outside
building, the attic space must be well ventilated
through the eaves. This is done to avoid any
moisture buildup in this space, which will condense
on the cold roof, dripping onto the insulation.
An interior kiln can have the ceiling insulation open
to the atmosphere.
Build ceilings to construction guidelines. (Pg 3)
At the front of the kiln chamber install bay/loading
doors with at least two sides hinges, and a center
door latch to close (recommended). Top hinged or a
lift o doors are also acceptable.
At least one access door should be installed in the
back of the chamber to allow for service of the
dehumidier and/or lumber monitoring.
Please read through carefully as some options
may not apply.
The dehumidication systems are installed in
insulated chambers, usually built from standard
construction materials. Details on construction can
be found elsewhere in this manual or on drawings
provided by Nyle.
It is important to remember that the
dehumidication system and the chamber together
form a dry kiln, and that successful and ecient
drying will depend on an air tight, well-insulated and
properly designed chamber.
Your Kiln
How your Dehumidication Kiln Works
Floors
Ceilings
Doors

3
All installed doors must:
• Be built to construction guidelines. However they
may be lightened by increasing the stud spacing and
using 3/8” plywood. The lighter weight will reduce
the load on the hinges
• Have a vapor barrier.
• Have gaskets wherever the door meets the kiln; this
will give a good, airtight t.
• Have a scraper type weather strip to reduce air
leakage if door sill is not present.
• Close tightly against the gasket using turnbuckles,
tarp straps, lag studs with wing nut, etc.
Remember: There will be considerable expansion and
contraction during kiln use, plan door construction
accordingly.
While outside electronic moisture meters can be
used to avoid entering the kiln, during the drying
cycle, Nyle strongly recommends regular checks
inside the kiln to visually inspect the surface or end
checks, mold, stain and to check with a hand held
meter.
If you want to use spray foam insulation, urethane
based only applied at 2.2lb/cu ft. Fiberglass is never
recommended.
Step 3: Caulk joints and nail heads with high
temperature silicone (optional: apply aluminum tape
over silicone)
Step 4: Cover Thermax with one or two layers of
6 mil polyethylene, then enclose with ½” CDX or
marine grade plywood.
Step 5: Coat CDX interior surface with “mobile home
or metal roong aluminum paint”
Paint is an asphalt based coating with powdered
aluminum and ber for strength, available in
hardware stores. Re-coat as necessary every year.
Step 6: Finish exterior walls to suit your tastes, but
avoid galvanized steel or other ferrous sidings.
Once you have completed construction of the kiln
chamber install the following air deectors and
baes to control the airow within the chamber.
• Corner deector typically made of plywood used to
help turn the airow.
• Hinged bae that falls from the fan wall, to be held
up during load with a nylon rope. Hinged baes
compensate for dierent load sizes, and allow for
shrinkage of the board pile.
• Bae that closes in the open space for lumber that
does not ll the entire width. This bae can be xed
or portable.
Do not underestimate the eect of this baing, as
correct baing will pay o in more even drying and
faster drying. This more than osets the extra time
and eort to correctly place the baes.
Please reference Figure 1-2 for more information on
deectors and baes.
Please reference Figure 1-1 for more information on
construction.
Step 1: Build all walls, ceilings and oors with a 2” x
4” framework, with blue or pink Styrofoam (extruded
polystyrene) friction tted between the studs.
Step 2: Cover the interior face of the studs with a 1”
layer of Celotex Thermax (or for better results two
overlapped ½” layers).
Celotex Thermax is foil faced polyisocyanurate
(urethane) board which is orange or yellow in
color and is available in 4’x 8’ sheets of various
thicknesses. Celotex Thermax is a trade name and
similar and acceptable products are available under
other trade names.
Construction Guidelines

4
Please reference gures 1-1,2,3,4 and 5 for more
information on installation.
Step 1: Place the dehumidier at the center of the
long wall with the inlet lter facing the board pile.
Step 2: Connect an appropriate length drain hose as
shown in Figure 1-1.The drain must have a trap.
The dehumidier can be elevated any reasonable
amount to help the drain gravity feed. If the drain
hose extends outside (not to a oor drain in the kiln)
the wall opening should be sealed around the hose.
Never have a oor drain.
Step 3: Place the controller at a convenient point
outside the chamber near the dehumidier.
Step 4: Remove the cover
Step 5: Drill holes in the kiln wall to allow control
cables and separately the sensor wires (inside the
controller) to be carefully routed into the chamber.
Do not route control and sensor wires through the
same hole.
Step 6: Mount the Dry Bulb Temperature Sensor 6 to
12 inches from the wall 4 feet o the oor, at least 3
ft from kiln unit, away from the blower outlet, for an
accurate reading.
Step 7: Remove the right side panel of the
dehumidier gaining access to the compressor and
terminal strip.
Step 8: Securely connect the control cable to the
dehumidier.
Step 9: Carefully connect each wire to their
corresponding terminal. Do not stretch or over stress
the cable.
Wire insulation is marked with the corresponding
terminal number.
Step 10: Seal holes after wires are installed to keep
moisture from the control box. Seal the holes in the
kiln wall.
Step 11: Install the fans in locations over the lumber
see gures 1-1,2,3,4 and 5 as a reference.
Step 12: Install and caulk the vents so that they are
on opposite sides of the fans and at opposite ends of
the kiln.
The vents can be mounted to open to the inside
or the outside. It is usually more convenient if it
opens to the outside. On the L50, the vent location
is dierent and should be located as shown on the
chamber drawings.
Step 13: With the system switch in OFF position, plug
in the power cable (the special receptacle for the
L200 is supplied by Nyle).
Equipment Installation