SATS CyberTWO Series Owner's manual

(Revised 08/05)
CyberTWO Series Installation, Operation & Maintenance Manual
Installation, Operation
& Maintenance
Dual Circuit - Vertical Floor Mounted
Precision Air Conditioners
SATS The Natural Alternative
CyberTWO™ SERIES
CyberTWO™ SERIES

(Revised 08/05)
CyberTWO Series Installation, Operation & Maintenance Manual
MODEL NOMENCLATURE
VFS-120-DG-FC-U
OHS = Overhead System
VFS = Vertical Floor System
FCS = Floor Console System
GPS = Glycol Pump System
COS = CyberONE System
MCS = Modular Cyber System
Nominal Capacity in
1,000’s of BTU/Hr
D ( )=Dual (Two) Circuit System
H ( )=Horizontal Discharge (H-Series)
AHU = Air Handling Unit
AR = Air-Cooled Remote (Split)
AS = Air-Cooled Self-Contained
C = Chilled Water System
CAA = Indoor Centrifugal Condenser
G = Glycol-Cooled
GRC = Glycol-Cooled Remote
Condensing Unit
RCU-O = Outdoor Propeller Remote
Condensing Unit
RCU-I = Indoor Centrifugal Remote
Condensing Unit
S = Single Pump
W = Water Cooled
WRC = Water-Cooled Remote Condensing Unit
D = Downflow
U = Upflow
AWS = Alternate Water Source
FC = Free Cooling

(Sept, 2010)
CyberTWO Series Installation, Operation & Maintenance Manual
1.0 Introduction ....................................... 1-1
1.1 General ...................................................... 1-1
1.2 Product Description ................................... 1-1
1.3 Product Warranty ...................................... 1-1
1.4 Safety ........................................................ 1-4
1.4.1 General ...................................................... 1-4
1.4.2 Safety Summary........................................ 1-4
2.0 Installation ......................................... 2-1
2.1 Receiving the Equipment. .......................... 2-1
2.2 Site Preparation ......................................... 2-1
2.3 Rigging ...................................................... 2-1
2.4 Mounting/Placement .................................. 2-2
2.4.1 Indoor Equipment....................................... 2-2
2.4.2 Outdoor Equipment.................................... 2-2
2.4.3 Optional Equipment (Field Installed) .......... 2-2
2.4.3.1 Remote Display ......................................... 2-2
2.4.3.2 Remote Temperature/Humidity Sensor ....... 2-3
2.4.3.3 Remote Water Detector ............................. 2-3
2.4.3.4 Floor Stand ................................................ 2-4
2.4.3.5 Plenum Box Assembly .............................. 2-4
2.5 Air Distribution Connection ........................ 2-4
2.5.1 Downflow Configuration Air Patterns ........... 2-4
2.5.2 Upflow Configuration Air Patterns ............... 2-5
2.6 Piping Connections.................................... 2-5
2.6.1 Refrigerant ................................................. 2-6
2.6.2 Water/Glycol ............................................. 2-8
2.6.3 Condensate Drain ...................................... 2-8
2.6.3.1 Gravity Drain .............................................. 2-8
2.6.3.2 Condensate Pump ..................................... 2-8
2.6.4 Humidifier .................................................. 2-9
2.7 Utility Connections .................................... 2-9
2.7.1 Main Power ............................................... 2-9
2.7.2 Controls ................................................... 2-10
2.7.3 Optional Equipment ..................................2-11
2.7.3.1 Remote Temperature/Humidity Sensor ......2-11
2.7.3.2 Remote Water Detector ............................2-11
2.7.4 Interconnecting Field Wiring......................2-11
2.7.4.1 Air-Cooled Split Systems
Remote Condenser .................................. 2-12
TABLE OF CONTENTS
2.7.4.2 Glycol Systems ....................................... 2-12
2.8 System Settings and Adjustments ........... 2-13
2.8.1 R-22 Refrigerant Charging Procedures ..... 2-13
2.8.2 R-407C Refrigerant Charging Procedures. 2-14
2.8.3 Low/High Pressure Limit Switch .............. 2-15
2.8.4 Head Pressure Controls........................... 2-15
2.8.4.1 Air-Cooled Systems................................. 2-15
2.8.4.2 Water/Glycol-Cooled Systems................. 2-16
2.8.5 Humidifier Adjustment.............................. 2-16
2.8.6 Blower ..................................................... 2-17
2.8.7 Thermal Expansion Valve ......................... 2-17
2.8.8 Snap Acting Hot Gas Bypass (Optional) .. 2-17
2.8.9 Hot Gas Reheat (Optional)....................... 2-18
2.9 Refrigerant Characteristics....................... 2-18
2.9.1 Pressure/Temperature Settings ................ 2-18
2.9.2 Saturated Refrigerant Pressure Tables ..... 2-18
2.9.3 Estimated Refrigerant for Liquid Line........ 2-18
3.0 Start-Up/Commissioning .................. 3-1
3.1 Operation ................................................... 3-1
3.2 Step by Step Start-Up Instructions ............. 3-1
3.3 Microprocessor Controller
Programming ............................................ 3-1
4.0 Maintenance...................................... 4-1
4.1 Periodic General Maintenance ................... 4-1
4.1.1 CyberTWO Unit ......................................... 4-1
4.1.2 Condenser ................................................. 4-2
4.2 Troubleshooting ......................................... 4-2
4.3 Field Service .............................................. 4-6
4.3.1 Refrigerant Piping ...................................... 4-6
4.3.2 General Common Repairs/
Component Replacement.......................... 4-6
4.3.2.1 Compressor Failure .................................. 4-6
4.3.2.2 Humidifier Cylinder Replacement.............. 4-8
4.3.2.3 Filter Replacement .................................... 4-9
5.0 Product Support Group........................... 5-1
5.1 Technical Support ...................................... 5-1
5.2 Obtaining Warranty Parts .......................... 5-1
5.3 Obtaining Spare/Replacement Parts .......... 5-1
i

(Sept, 2010)
CyberTWO Series Installation, Operation & Maintenance Manual
TABLE OF CONTENTS (Continued)
ii
List of Figures
Figure 1. Installation Clearance.............................1-2
Figure 2. Typical Installation Downflow..................2-2
Figure 3. Typical Installation Upflow ......................2-3
Figure 4. Optional Floor Stand Installation ............2-4
Figure 5. Downflow Configuration
Typical Air Patterns.................................2-5
Figure 6. Upflow Configuration Typical
Air Patterns (Top Discharge)...................2-6
Figure 7. Upflow Configuration Typical Air
Patterns (Top Ducted Discharge)............2-7
Figure 8. Condensate Pump..................................2-9
Figure 9. Sample Nameplate...............................2-10
Figure 10. Interconnecting Field Wiring
Remote Condenser...............................2-11
Figure 11. Interconnecting Field Wiring
Glycol Systems.....................................2-12
Figure 12. Blower...................................................2-17
Appendix A - Forms
Checklist for Completed Installation........................ A-1
Periodic General Maintenance
Checks and Service Checklist................................. A-2
Appendix B - Glossary
Definition of Terms and Acronyms........................... B-1

(Sept, 2010)
CyberTWO Series Installation, Operation & Maintenance Manual
1-1
1.0 INTRODUCTION
1.1 General
Congratulations, the CyberTWO™ floor mounted air
conditioning system covered by this manual is de-
signed and manufactured by S tulz Air Technology
Systems, Inc. (SATS) using the latest, st ate-of-the-art
control technology. Recognized as a world leader,
SATS provides air conditioning systems with the
highest quality craftsmanship using the finest materi-
als available in the industry. The unit will provide years
of trouble free service if installed and maintained in
accordance with this manual. Damage to the unit from
improper installation, operation or maintenance is not
covered by the warranty.
STUDY the instructions contained in this manual.
They must be followed to avoid dif ficulties. S pare parts
are available from S tulz Air Technology Systems to
insure continuous operation. Using substitute parts or
bypassing electrical or refrigeration components in
order to continue operation is not recommended and
will VOID THE WARRANTY. Due to technological
advancements, components are subject to change
without notice.
All CyberTWO systems and centrifugal condensers
are designed to be installed indoors unless otherwise
noted on the equipment. Propeller-type condensers,
drycoolers and pump packages are designed for
outdoor use.
1.2 Product Description
CyberTWO systems are designed to be the most
versatile and flexible floor mounted air conditioning
systems in the industry. The unit is available in air-
cooled, water-cooled and glycol-cooled configurations.
The cooling capacity, in BTU/Hr, will depend on the
unit size, which can range from 72,000 to 312,000
BTU/Hr. CyberTWO systems are designed to operate
with either R22 or R407C refrigerant. Refer to the unit
nameplate to identify which refrigerant is used with
your unit.
NOTE
The CyberTWO systems are strictly for non-resi-
dential applications.
The CyberTWO systems have been designed to
supply air to only one room.
The functional modes of operation in addition to
cooling are heating, humidification and dehumidifica-
tion, which provide complete environmental control of a
conditioned space.
There are two configurations of air patterns, upflow and
downflow and several cabinet sizes based on the type
of system and capacity. Regardless of configuration,
the vertical floor system (VFS) is compact and
versatile. The cabinet heights range from 76 inches to
94.5 inches. The depth is 33 inches with the exception
of a rear ducted unit which is 39 inches deep. The
width dimensions range from 70 inches to 114 inches.
The CyberTWO unit is provided with a factory mounted
main power disconnect switch with a lockable handle.
The disconnect switch isolates the unit during routine
maintenance. The system incorporates state of the art
component protection with the use of motor start
protectors and circuit breakers.
An operating manual for the system controller is
provided under separate cover. Refer to that manual for
detailed instructions on operating the system control-
ler provided with your unit.
The standard controller for the CyberTWO unit is the
C6000 microprocessor, which provides the following
features: input/output monitoring status, full integrated
control of heating, cooling, humidification and dehu-
midification; multi-unit control and remote communica-
tion with building management systems. The controller
is typically factory mounted on the front hinged access
door of the unit. As an option the controller may be
remotely mounted to a wall or control panel.
SATS offers the A-Tech-20 microprocessor controller
as an option, if required, for selected special applica-
tions.
1.3 Product Warranty
SATS offers a two year standard limited warranty as
stated on the following pages. Additionally an ex-
tended warranty may be purchased on the unit's
compressors. Consult the factory to verify if the
extended compressor warranty was purchased for your
system. The compressor warranty as stated on the
next page will be sent with your unit and should be
retained for future reference.

(Sept, 2010)
CyberTWO Series Installation, Operation & Maintenance Manual
1-2
STULZ AIR TECHNOLOGY SYSTEMS, INC.
12 MONTH PRECISION A/C LIMITED WARRANTY /
24 MONTHS PRECISION A/C UPGRADED LIMITED WARRANTY
The 12 month Precision A/C Limited Warranty applies when the Product Support Network
Factory Start-Up is not purchased at the time of order entry.
The 24 Month Precision A/C Upgraded Limited Warranty applies only if Factory Start-Up was
purchased at the time of Order Entry and Start-Up has been validated by Product Support.
The 12 Month Precision A/C Limited Warranty provided by Stulz Air Technology Systems, Inc. (SATS) warrants
your purchase to be free from defects in material and workmanship. SATS’ obligation under this warranty is to
repair or replace, at its option, any part or parts which are determined by SATS to be defective for a period of 12
months from the date of shipment when an accurately completed Factory Start-Up Form has been submitted to
SATS, within 180 days from shipment. Parts repaired or replaced under this warranty are shipped FOB Factory,
and warranted for the balance of the original warranty period or for 90 days from the date of installation, whichever
is greater. If the Factory Start-Up form is not returned to SATS within 180 days from the date of equipment
shipment, the equipment warranty will be terminated on the 181st day from shipment. This limited warranty does
not include labor, freon, or any other expense required to replace the defective component and bring the unit back
to a working status.
The 24 Month Precision A/C, Upgraded Limited, Warranty provided by Stulz Air Technology Systems, Inc. (SATS)
warrants your purchase to be free from defects in material and workmanship for 24 months. SATS obligation under
this warranty is to repair or replace, at its option, any part or parts which are determined by SATS to be defective
for a period of 24 months from the date of start-up. Parts repaired or replaced under this warranty are shipped
FOB factory ground, and warranted for the balance of the original warranty period or for 90 days from the date of
installation, whichever is greater. If the factory is not allowed to start the equipment within 180 days from the date
of shipment, the warranty will commence on the 181st day from equipment shipment. This limited warranty does
not include labor, freon, or any other expense required to replace the defective component and bring the unit back
to a working status.
Stulz Air Technology System’s warranty does not cover failures caused by improper installation, abuse, misuse,
alteration, misapplication, improper or lack of maintenance, negligence, accident, normal deterioration (including
wear and tear), or the use of improper parts or improper repair.
Purchaser’s remedies are limited to replacement or repair of non-conforming materials in accordance with the
written warranty. This warranty does not include costs for transportation, travel expenses, costs for removal or
reinstallation of equipment or labor for repairs or replacements made in the f eld.
If any sample was shown to the buyer, such sample was merely to illustrate the general type and quality of the
product, and not to represent that the equipment would necessarily conform to the sample.
This is the only warranty given by the seller, and such warranty is only given to buyer for commercial or industrial
purposes. The warranty is not enforceable until the invoice(s) is paid in full.
THIS FOREGOING SHALL CONSTITUTE SATS’ ENTIRE LIABILITY AND YOUR EXCLUSIVE
REMEDY. IN NO EVENT SHALL SATS BE LIABLE FOR ANY DEFECT, INDIRECT, SPECIAL,
INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES, INCLUDING LOST PROFITS (EVEN
IF ADVISED OF THE POSSIBILITY THEREOF) ARISING IN ANY WAY OUT OF THE INSTALLATION,
USE OR MAINTENANCE OF THE EQUIPMENT. THIS WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE.
This warranty supersedes all other previously printed warranties dated prior to this document.
WARF-1001 Rev. B; 9/20/10

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


(Sept, 2010)
CyberTWO Series Installation, Operation & Maintenance Manual
1-3


 
STULZ AIR TECHNOLOGY SYSTEMS, INC.
OPTIONAL 60 MONTH COMPRESSOR LIMITED WARRANTY
This warranty applies only when the Product Support Network Factory Start-Up is purchased at
the time of order entry.
SATS#:
Unit Serial #:
Unit Model #:
Warranty Start Date:
Warranty End Date:
Compressor 1 Serial #:
Compressor 2 Serial #:
Stulz Air Technology Systems, Inc. (SATS) warrants your purchase to be free from defects in material and
workmanship for 60 months (original standard 24 months and purchased additional 36 months). SATS’ obligation
under this warranty is to repair or replace, at its option, free of charge to the customer, any part or parts which are
determined by SATS to be defective for a period of 60 months from the date of start-up. Start-up must be completed
within the f rst 180 days from shipment. The 60 month warranty only covers original compressor(s) that were installed
by SATS or a original equipment supplier contracted by SATS to manufacture equipment solely for SATS.
Compressors replaced under this warranty are shipped FOB factory ground, and warranted for the balance of
the original warranty period or for 90 days from the date of installation, whichever is greater. If the factory is not
allowed to start up the equipment within 180 days from the date of shipment, the warranty will commence on the
181st day from equipment shipment
Stulz Air Technology System’s warranty does not cover failures caused by improper installation, abuse, misuse,
alteration, misapplication, improper or lack of maintenance, negligence, accident, normal deterioration (including
wear and tear), or the use of improper parts or improper repair. Purchaser’s remedies are limited to replacement
or repair of non-conforming materials in accordance with the written warranty. This warranty does not include cost
for torch charges, reclaim charges, Freon, transportation, travel expenses, costs for removal or reinstallation of
equipment or labor for repairs or replacements made in the f eld.
If any sample was shown to the buyer, such sample was merely to illustrate the general type and quality of the
product, and not to represent that the equipment would necessarily conform to the sample.
This is the only warranty given by the seller, and such warranty is only given to buyers for commercial or industrial
purposes. The warranty is not enforceable until the invoice(s) is paid in full.
THIS FOREGOING SHALL CONSTITUTE SATS’ ENTIRE LIABILITY AND YOUR EXCLUSIVE
REMEDY. IN NO EVENT SHALL SATS BE LIABLE FOR ANY DEFECT, INDIRECT, SPECIAL,
INCIDENTAL, CONSEQUENTIAL, OR EXEMPLARY DAMAGES, INCLUDING LOST PROFITS (EVEN
IF ADVISED OF THE POSSIBILITY THEREOF) ARISING IN ANY WAY OUT OF THE INSTALLATION,
USE OR MAINTENANCE OF THE EQUIPMENT. THIS WARRANTY IS IN LIEU OF ALL OTHER
WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE.
This warranty supersedes all other previously printed warranties dated prior to this document.
WARF-1003 Rev. A; 8/30/10

(Sept, 2010)
CyberTWO Series Installation, Operation & Maintenance Manual
1-4
1.4 Safety
1.4.1 General
Stulz Air Technology Systems, Inc. uses NOTES
along with CAUTION and WARNING symbols through-
out this manual to draw your attention to important
operational and safety information.
A bold text NOTE marks a short message in the
information to alert you to an important detail.
A bold text CAUTION safety alert appears with
information that is important for protecting your
equipment and performance. Be especially careful to
read and follow all cautions that apply to your applica-
tion.
A bold text WARNING safety alert appears with
information that is important for protecting you from
harm and the equipment from damage. Pay very
close attention to all warnings that apply to your
application.
A safety alert symbol precedes a general WARN-
ING or CAUTION safety statement.
A safety alert symbol precedes an electrical
shock hazard WARNING or CAUTION safety state-
ment.
1.4.2 Safety Summary
The following statements are general guidelines
followed by warnings and cautions applicable
throughout the manual.
Prior to performing any installation, operation, mainte-
nance or troubleshooting procedure read and under-
stand all instructions, recommendations and guide-
lines contained within this manual.
All maintenance and/or repairs must be performed by
a journeyman, refrigeration mechanic or an air
conditioning technician.
Never operate the unit with any cover, guard, screen
panel, etc., removed unless the instructions specifi-
cally state otherwise, then do so with extreme caution
to avoid personal injury.
Never lift any component in excess of 35 pounds
without help. If a lifting device is used to move a unit
ensure it is capable of supporting the unit.
When working on electrical equipment, remove all
jewelry, watches, rings, etc.
Always disconnect the main power supply to the
equipment at the main power disconnect switch before
beginning work on the equipment. A lock-out tag-out
procedure should be followed to ensure that power is
not inadvertently reconnected.
Equipment may contain components subject to
Electrostatic Discharge (ESD). Before attempting to
mount or service these electronic devices, ensure
you have no charge built up by touching a ground
source. When possible, use a wrist-grounding strap
when working on or near electronic devices.
Never work on electrical equipment unless another
person who is familiar with the operation and hazards
of the equipment and competent in administering first
aid is nearby.
All personnel working on or near equipment should be
familiar with hazards associated with electrical
maintenance. Safety placards/stickers have been
placed on the unit to call attention to all personal and
equipment damage hazard areas.
Certain maintenance or cleaning procedures may call
for the use and handling of chemicals, solvents, or
cleansers. Always refer to the manufacturer's Material
Safety Data Sheet (MSDS) prior to using these
materials. Clean parts in a well-ventilated area. Avoid
inhalation of solvent fumes and prolonged exposure
of skin to cleaning solvents. Wash exposed skin
thoroughly after contact with solvents.
WARNING
Refrigerant (R22 or R407C) is used with this
equipment. Death or serious injury may result if
personnel fail to observe proper safety precau-
tions. Great care must be exercised to prevent
contact of liquid refrigerant or refrigerant gas, dis-
charged under pressure, with any part of the
body. The extremely low temperature resulting
from the rapid expansion of liquid refrigerant or
pressurized gas can cause sudden and irrevers-
ible tissue damage.
As a minimum, all personnel should wear ther-
mal protective gloves and face-shield/goggles
when working with refrigerant. Application of ex-
cessive heat to any component will cause ex-
treme pressure and may result in a rupture.

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CyberTWO Series Installation, Operation & Maintenance Manual
1-5
Exposure of refrigerant to an open flame or a
very hot surface will cause a chemical reaction
thatwillformcarbonylchloride (hydrochloric/hy-
drofluoric acid); a highly poisonous and corro-
sivegascommonlyreferredtoasPHOSGENE.
In its natural state, refrigerant is a colorless,
odorless vapor with no toxic characteristics. It
is heavier than air and will disperse rapidly in
a well-ventilated area. In an unventilated area,
it presents a danger as a suffocant.
Always refer to the manufacturer’s MSDS pro-
vided with the unit.
WARNING
When performing soldering or desoldering op-
erations, make certain the refrigeration system
is fully recovered and purged and dry nitrogen
is flowing through the system at the rate of not
less than 1-2 CFM (.03 - .06 M³/minute).
CAUTION
Whentheairconditionerisinthecoolingmode,
the return air-intake and discharge (supply)
must be free of obstructions. Ensure panels
are secure and latched into position.
CAUTION
Do not use cleaning solvents near open flame
or excessive heat. Wear eye protection when
blowingsolventfromparts.Thepressure-wash
should not exceed 30 psig. Solvent solutions
should be disposed of in accordance with local
and state regulatory statutes.
CAUTION
Units must be kept in its normal installed posi-
tion. If the unit is not kept level and vertical,
damage to the unit’s compressors will result.
40.0"
30
(
MINIMUM SID
E
CLEARANCE
)
(
MINIMUM FR
O
N
T
CLEARANCE
)
30
.
0"
(
MINIMUM SID
E
CLEARANCE
)
Figure 1- Recommended Installation
Clearance
Front and side service access.

(Sept, 2010)
CyberTWO Series Installation, Operation & Maintenance Manual
STRUCTURE R-VALUE
Ceiling R-38
Wall R-21
Floor R-19
Door R-5
2-1
2.0 INSTALLATION
2.1 Receiving the Equipment
Your CyberTWO system has been tested and in-
spected prior to shipment. To ensure that your
equipment has been received in excellent condition,
make a visual inspection of the equipment immedi-
ately upon delivery. Carefully remove the shipping
container and all protective packaging. Remove the
access panels and thoroughly inspect the unit interior
for any signs of transit-incurred damage. If there is
shipping damage, it must be noted on the freight
carrier's delivery forms BEFORE signing for the
equipment. Any freight claims MUST be done through
the freight carrier. SATS ships all equipment FOB.
SATS can assist in the claim filing process with the
freight carrier. Should any such damage be present,
notify the SATS Product Support Group prior to
attempting any repairs. Refer to section five of this
manual for instructions.
A Data Package has been sent with your unit. It
contains this manual, a supplemental microprocessor
controller manual, system drawings, applicable
MSDS’s, other component manuals, warranty registra-
tion and other applicable instructions based on the
configuration and options of your unit. The data
package has been placed in your unit in a clear plastic
envelope. These documents need to be kept with the
unit for future reference.
NOTE
Items that have been shipped loose, such as
controllers, temperature/humidity sensors, wa-
ter detectors, etc., are shipped inside the air
conditioner unless specified otherwise by the cus-
tomer. The filter box or plenum box assembly (if
applicable) is shipped separately. Unpack and
store these items in a safe place unless you are
using them immediately.
2.2 Site Preparation
The CyberTWO systems were designed with easy
service access in mind. Component access panels
are located on the front and sides of the equipment.
The number of panels may vary depending on size
and configuration. Each unit has one front hinged
access panel, housing the electrical box. In order to
have full service access, through the front of unit, no
permanent obstructions can be placed within 40
inches of the front of unit. Side access panels require
a minimum of 30 inches of clearance. See Figure 1.
NOTE
Working clearance requirements need to be es-
tablished prior to the mounting of the unit. Refer
to local and national electrical codes.
To minimize the effects of the conditions surrounding
the conditioned space, certain steps must be taken.
This is especially true for critical/precision room
preparation (computer rooms/labs) requiring a close
tolerance of temperature and humidity variation. The
conditioned space should be well insulated and
include a vapor barrier. The installer should ensure that
the proper insulation rating is used based on the
design of the space, which was the basis for the
system selected. The following chart is a recom-
mended minimum R-value (thermal resistance) to
ensure optimum equipment operation.
The vapor barrier is the single most important require-
ment for maintaining environmental control in the
conditioned space. The vapor barrier in the ceiling and
walls can be a polyethylene film. Concrete walls and
floors should be painted with a rubber or plastic based
paint. Doors and windows should be properly sealed
and a door sweep used to minimize leakage. Outside
or fresh air should be kept to a minimum because it
adds to the cooling, heating, dehumidification and
humidifying loads, while maintaining the requirement of
the Indoor Air Quality (IAQ) standard. Lack of these
steps can cause erratic operation, unstable room
control and excessive maintenance costs.
2.3 Rigging
The CyberTWO systems are designed to be kept in
the vertical position. Move the unit with a suitable
device such as a forklift, pallet jack, roller bar and
dollies. Weight tables are provided on the installation
drawings. Units are shipped on a skid to facilitate