CDS SBDH-200 Manual

SBDH-200
DESICCANT DEHUMIDIFIER
INSTALLATION, OPERATION, AND MAINTENANCE INSTRUCTIONS

Table of Contents
Subject Page Number
Read this Manual ............................................................................................................................1
Principle of Operation ......................................................................................................................1
Machine Set-Up ..............................................................................................................................1
Operating Instructions......................................................................................................................2
Controls............................................................................................................................................2
Maintenance Instructions.................................................................................................................3
Dehumidifier Service Instructions ....................................................................................................4
Electrical Diagram............................................................................................................................8
Spare Parts List ...............................................................................................................................9
Control Set-up ...............................................................................................................................10
Warranty ........................................................................................................................................12

READ THIS MANUAL
This manual is provided for the SBDH-200 dehumidifier so the user can gain a thorough
understanding of the proper set-up, operation, and maintenance. This dehumidifier is built around
tested engineering principles and has passed a thorough inspection for quality of workmanship
and function. A thorough understanding of the set-up, operation, and maintenance of this
equipment will allow it to provide maximum performance and reliability.
PRINCIPLES OF OPERATION
The SBDH-200 is a self-contained desiccant dehumidifier designed to efficiently remove water
vapor from the air. A portion of the desiccant rotor is exposed to the “process” air effectively
adsorbing moisture while the second portion of the rotor is exposed to heated “reactivation” air
effectively removing the adsorbed moisture. This process is done on a continuous basis,
providing constant dehumidified process air.
MACHINE SET-UP
-Carefully remove the machine from its shipping crate.
-Thoroughly inspect the machine for shipping damage. Should any damage be found, report the
damage to the freight company immediately. Removal of the side access panel allows for
inspection of the internal components.
-A lifting bar with clevis eyes is provided for safe lifting and handling of this machine. It is
important to ensure the devices connected to the lifting bar are suitable for lifting duty.
-Carefully place the machine on a level surface.
-Connect 4” hoses with 4” standard pipe flanges from the process inlet and outlet to the gear
box.
-Connect an appropriate 460/3/60 power supply (7.5 min. circuit amps) to the machine in
accordance with local codes. A cord grip is provided for installation of a 12 ga. S/O cord on the
side of the machine. The slots in the lifting bar are provided to allow for the cord to be tie wrapped
for transport.
Check to ensure the machine is turned “off” prior to applying power.
Although the power input is 3 phase, it is not necessary to phase the incoming power.
NOTE: This machine is of splash-proof construction for indoor use only.

CONTROLS-OPERATION
Machine operation is fully automatic and requires no adjustments to airflow or other primary
functions. The controls in this machine are UL, C-uL listed and provide for automatic operation
and protection of the electrical components. Access to the control panel is via a hinged access
cover.
A polycarbonate cover is utilized over the control plate. To access controls, loosen both thumb
screws and rotate bottom of cover CCW.
A “ON-OFF” switch is provided for energize the dehumidifier.
A Yellow “POWER” lamp is provided to indicate that power is applied to the machine.
A Green “DEHUMIDIFY” lamp is provided to indicate humidity is above set point, and the
dehumidifier is operational (process fan, reactivation fan and heater, and drive motor are
energized.
A Red “HIGH HUMIDITY” lamp is provided to indicate that the return air humidity is 5% above
set point (factory default, can be adjusted to suit application).
Upon initial start, this lamp may be lit.
A Red “LOW PROCESS AIRFLOW” lamp is provided to indicate that the process air flow is
below set point.
This lamp will be lit when the humidity control set point has been reached.
A Red “LOW REACT AIRFLOW” lamp is provided to indicate that the reactivation air flow is
below set point.
This lamp will be lit when the humidity control set point has been reached.
A digital HUMIDITY CONTROL is provided for automatic control of relative humidity (RH) levels
based on the process inlet (return) air condition. The value shown on the left is the actual value,
the one on the right is the set point. This automatically controls the fans, heater and drive motor
to maintain humidity levels at set point. Once set point has been reached (factory set at +/-2%
hysteresis), the fans, heater and drive motor will shut off. An internal cycle timer will energize the

process fan for 1 minute every 10 minutes to check humidity levels. The control will automatically
restart the dehumidifier is humidity levels are above set point.
An ELAPSED TIME METER is provided to track total operating time in hours.
Air flow is accomplished using a motorized impeller for process and direct drive blower for
reactivation air. Air pressure switches are incorporated to indicate if low air flow conditions exist.
A fractional hp gear motor drives the desiccant rotor.
Self-regulating PTC heater elements provide the “heat source” for reactivation.
Filtration is provided for the process inlet, process outlet, and reactivation inlet air.
MAINTENANCE
This machine is designed for minimal maintenance and years of trouble free service.
All motors and bearings provided are permanently sealed and require no maintenance.
Clean the exterior of the machine with a damp cloth and mild soap if necessary.
DO NOT use a garden hose or pressure washer to clean this machine !
Check to ensure all access panels and covers are in place and secure.
Inspect filters regularly and replace if dirty. Regular air filter maintenance is critical to extending
the life of the desiccant rotor and maintaining moisture removal efficiency.
Keeping filters clean is the most important long term maintenance on this machine !
In dusty or dirty environments, the filter replacement interval will be greatly reduced. A filter
replacement interval should be established to prevent operation with extremely dirty filters.

Process Air Inlet, Process Air Outlet, and Reactivation Air Inlet Filters are all the same two
stage 10 micron / 80micron pleated filters (8H x 10.5W x 7/8).
Access to all 3 filters is via swing plates with retained thumb nuts on the unit service panel.
To remove filters, loosen both thumb screws and back out approximately ¼”.
Pull plate away from panel and swing from bottom counter clockwise until vertical. Slide filter out
from track.
Replace only with the same or equivalent filters.

Process and React Blower
The blowers can be accessed by removing the Service Access Cover(s). No maintenance is
required.
---DISCONNECT POWER BEFORE REMOVING THE ACCESS COVER---

Desiccant Rotor Drive
The rotor drive system consists of a fractional hp gear motor, timing pulley, timing belt, and spring
tensioner. The gear motor is sealed and permanently lubricated. Check the motor fasteners and
timing pulley to be secure. Inspect the timing belt for cracks, tears, or abrasion. The tensioner
should keep slack form the belt with light tension.
Rotor Seals
Periodically inspect the rotor seals for damage, tears, or gaps. Dividing seals will be above and
below the rotor.
Reactivation Electrical Heaters
The heating elements are self regulating PTC type and require no maintenance. Elements can be
accessed through the tall access cover for service or replacement as required.
-DISCONNECT POWER BEFORE REMOVING THIS COVER-

Humidity Sensor
The humidity sensor is equipped with a protective filter to prevent contamination of the sensor.
If excessive dirt builds up on the filter surface, is should be removed, cleaned, and replaced,
Pressure Switches
The pressure switches require no maintenance or adjustment. Check hoses occasionally for kinks, tears, or loose ends.

Data Logger
An optional data logger can be installed in the machine to measure return air conditions. Removal of the gasketed sight
glass exposes a small hook in the top of the opening. Insert the end of the hook through the top mounting hole of the data
logger and re-install the sight glass.

SBDH-200 Dehumidifier
Effective 1/8/13
Spare Parts
P/N DESCRIPTION QTY
APPLICATION
PPSR-320-200 Desiccant Rotor
(
includes Bearin
g
s
)
1 ea.
60042RS Rotor Bearin
g
2 ea.
.786-8.374-RS Rotor Shaft 1 ea.
SP-0.25 Spacer, 100mm Series Shaft 2 ea.
SLW14 Washer, split lock zinc, 1/4 2 ea. shaft bolt washers
HCSGR5004C008ZP Screw, hex cap zinc
g
rd 5, 1/4-20x1/2 2 ea. shaft bolts
BT-100 Belt Tensioner Ass'
y
1 ea.
320-100-DB-S Seal/Drive Band Set
(
4 pcs + hdw
)
1 ea.
VSS-01 Viton Seal Strip,1" x .040" 11 ft.
8512K16 Gasket, PVC adhv. backed 1/8x3/4x100' 21 ft access covers
8512K13 Gasket, PVC adhv. backed 1/8x3x100' 2.3 ft filter covers
9452K126 O-Rin
g
, Buna-N, 2-5/8 ID x 1/16" dia. 1 ea. datalo
gg
er seal
9068A120 Clip on Nut, Square, Zinc Plated, 10-24 Screw 41 ea. filter & access covers
PPMS01034S Screw, phillips m/s SS, 10-24x3/4 45 ea. filter & access covers
98704A430 Plastic Hd Thumb Drive Scew, 10-24x3/4" 8 ea. filter cover screws
94800A710 Push Nut, #10 8 ea. filter cover retaine
r
SB200-CCP Control Cover Panel 1 ea.
200-DLK Data Lo
gg
er Mountin
g
Kit 1 ea.
CFS-8H-105W-7/8 Filter, 10/80 Micron 3 ea.
35710-10 Data Lo
gg
er, Oakton 1 ea. b
y
others
R3G 250-
A
K41-71 Process Blowe
r
1 ea.
6FHX3 Reactivation Blowe
r
1 ea.
1LNG2 Rotor Drive Moto
r
1 ea.
16XL037-6FA5 Rotor Drive Pulle
y
1 ea.
HI404U14C2 React Heater Element 5 ea.
SL4824-RR Humidit
y
Control 1 ea.
HX71-MA Humidit
y
Senso
r
1 ea.
3ZM96 Pressure Switch 2 ea.
1878T42 Hour Mete
r
1 ea.
Panel CP-4040-R4
S203UPK5.0 Circuit Breake
r
-CB1 1 ea.
A
16-30-10-84 Contacto
r
-C1, C2 2 ea.
C
A
-5-10
A
uxiliar
y
Contact, C2 2 ea.
LPCC-5 Fuse-F1, F2 2 ea.
QOU210 Circuit Breake
r
-CB2 1 ea.
1SVR427041R1000 12 VDC Power Suppl
y
1 ea.
H3CR-F8300100-
120AC Repeat C
y
cle Time
r
1 ea.
K10P-11A15-120 Control Rela
y
-CR1 1 ea.
70066145 LED, Red 3 ea.
70066142 LED, Green 1 ea.
70066151 LED, Ambe
r
1 ea.

Control Set-up
Humidit
y
Control
Input Press "SET" key for 3 seconds
"Cnpt" will be displa
y
ed
Press "Up/Dn" ke
y
to "nA4"
Press "SET"
ke
y
Press "SET" key for 3
seconds
Scale Press "Return" ke
y
to "tP-h"
Press "Up/Dn" ke
y
to "100"
Press "SET"
ke
y
Press "Return" ke
y
to "tP-L"
Press "Up/Dn" ke
y
to "0"
Press "SET"
ke
y
Control Press "SET" key for 3 seconds
Press "Return" ke
y
to "CtrL"
Press "Up/Dn" ke
y
to "onoF"
Press "SET"
ke
y
Press "Return" ke
y
to "S-HC"
Press "Up/Dn" ke
y
to "Cool"
Press "SET"
ke
y
Press "SET"
ke
y
H
y
steresis "CtS" will be displa
y
ed
(
2%
)
Press "Up/Dn" ke
y
to "2"
Press "SET"
ke
y
Press "SET" key for 3
seconds
A
larm Press "Return" ke
y
to "ALAI"
(
5% above Press "Up/Dn" ke
y
to "2"
set point
)
Press "SET" ke
y
Press "Return" ke
y
to "AL H"
Press "Up/Dn" ke
y
to "5"
Press "SET"
ke
y
* If required, ad
j
ust sensor scale offset value as required for accurac
y
Offset Press "SET" ke
y

Press "Return" ke
y
to "tP-oF"
Press "Up/Dn" key to desired offset
value
Press "SET"
ke
y
Pressure Switches Factor
y
default settin
g
s retained-do not ad
j
ust pressure settin
g
s
PS1-Process NC
contacts
"low" throu
g
h top rotor panel
(
under control panel
)
"hi
g
h" to fan compartment
PS2-Reac
t
NC contacts
"low" to fan plenum
(
react out
)
"hi
g
h" to react inlet divider
C
y
cle Time
r
Set dial scale 0-12
Mode Scale Dial
Settin
g
OFF 10m 1
(
10 min
)
ON 10m 0.1
(
1 min
)

STANDARD WARRANTY
AND
LIMITATIONOFREMEDIESFORBREACHOFWARRANTY
CONTROLLED DEHUMIDIFICATION warrants all products to be free of defects in material and workmanship
for twelve (12) months from the date of shipment. CDIMS shall only be liable under this warranty if the product
is installed and used according to the directions furnished by CDIMS.
CONTROLLED DEHUMIDIFICATIONS’ obligation shall be limited to the replacement of new parts of the
products for those returned to CDIMS’ factory at the purchaser’s expense and found to be defective by
CONTROLLED DEHUMIDIFICATION. Replacement parts will be shipped F.O.B. CONTROLLED
DEHUMIDIFICATIONS’ factory. Replacement of parts shall not extend the original warranty period of the
original total product, including replacement parts supplied.
This warranty does not cover corrosion; normal deterioration; misapplication; labor charges paid for parts
replacement, adjustments, repairs or other work; loss of refrigerant or natural gas, oil, or other fuel;
components supplied by others; defects in parts resulting from neglect, negligence, accident, fire, explosion,
high or low voltage, jumpering or jamming controls, shorting out of components; improper or contaminated fuel,
excessive or inadequate fuel pressure; frozen heating coils; or any acts of nature.
This warranty does not cover failure of the purchaser to provide normal maintenance, lubrication, adjustments,
cleaning or service on the heating system; improper repairs or alterations; or misapplication of the equipment.
It is expressly understood that this warranty is made IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED
OR IMPLIED, WHETHER ARISING FROM STATUTE, COMMON LAW, CUSTOM, OR OTHERWISE,
INCLUDING WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ANY PARTICULAR PURPOSE,
QUALITY, DESIGN, CONDITION, DURABILITY OR SUITABILITY, and in consideration of the express
warranty herein contained, BUYER EXPRESSLY WAIVES ANY RIGHT TO CLAIM OTHER WARRANTIES,
EXPRESSED OR IMPLIED.
It is further understood that CONTROLLED DEHUMIDIFICATIONS’ liability for breach of warranty shall be
limited to terms of this warranty and buyer agrees that CONTROLLED DEHUMIDIFICATION SHALL NOT, IN
ANY EVENT, BE LIABLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, OR DELAY. The
buyer’s remedies are exclusive, and shall be limited to those provided herein.
Controlled Dehumidification neither assumes and does not authorize any person to assume any obligation or
warranty other than those stated herein.
Any suggestion to the contrary not withstanding, Controlled Dehumidification shall not, in any event, have any
liability under this warranty unless and until it has been paid in full for the products. The warranty period shall
begin as described above, whether or not payment has been made.

WARRANTY CLAIMS
Defective material may be repaired or replaced at our option. If replaced, full credit will be issued in the amount
of the original purchase price, plus freight, for the returned material in the event the material is found to be not
defective, or to be damaged or abused, we reserve the right to return the material “as is” to the sender and at
his freight cost. If CONTROLLED DEHUMIDIFICATION agrees to keep such material, credit will be issued
minus the cost of repair and reconditioning, less freight for the return and less restocking charges.
REPLACEMENT PARTS
When writing or calling to CONTROLLED DEHUMIDIFICATION for service parts, provide the serial number of
the unit as stamped on the unit plate attached to the electrical door. For questions regarding wiring diagrams, it
will be necessary to provide the number on the specific diagram. If replacement parts are required, include the
date of installation, the date of failure, an explanation of the malfunction, and a description or part number of
the replacement parts required.