Desert Aire CM3560 Series User manual

Installation and Operation Manual
for GA, GS and GV Units
• Controls specific to
Controlled
Environment
Agriculture
• Monitoring of
temperature, RH,
dew point, and VPD
• Photocell input
allows for feedback
of light cycle
• Optional CO2
monitoring and
automated control
• Capability to link
units for coordinated
control in a single
space
• Cloud-based logging,
alarms, and control
when used with
AireGuard™
6
6
• Monitoring of zone
temperature and RH
• Real-time monitoring
and control of airow
• Optional VOC
sensor control of
ventilation air
• Low exhaust fan
control
• Economizer
capability
• Cloud-based logging,
alarms, and control
when used with
AireGuardTM
CM3560 Series
Controller
Installation and Operation Manual for SP Units

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DANGER
ONLY TRAINED, QUALIFIED PERSONNEL SHOULD INSTALL AND/OR SERVICE
DESERT AIRE EQUIPMENT. SERIOUS INJURY, DEATH AND PROPERTY DAMAGE CAN
RESULT FROM IMPROPER INSTALLATION/SERVICE OF THIS EQUIPMENT. HIGH VOLTAGE
ELECTRICAL COMPONENTS AND REFRIGERANT UNDER PRESSURE ARE PRESENT.
Desert Aire
Dehumidication Equipment Standard Limited Warranty
Desert Aire warrants the dehumidifying unit to be free from defects in materials and workmanship subject to the terms,
conditions and limitations stated herein.
TERMS
Desert Aire warrants all components (except as noted) for a period of two (2) years from the date of shipment. This
warranty shall be limited to the supply of new or rebuilt parts for the part which has failed because of
defects in workmanship or material, and does not include the cost for labor, transportation or other costs not herein
provided for. Replaced parts are warranted only for the remaining portion of the original warranty period.
CONDITIONS
The warranty is subject to the following conditions:
1. The unit must be properly installed and maintained in accordance with the Desert Aire
“Installation and Operation Manual” provided with each unit and/or other documentation provided.
2. The Start-Up Report must be completed and returned to Desert Aire Service for evaluation. If no
deciencies are identied a Warranty Validation Letter will be issued that provides all warranty dates
and coverage. If installation or start-up deciencies are present, these must be corrected and
communicated to Desert Aire in order to activate warranty.
3. This warranty shall not apply to any part that has been tampered with, or has been subject to
misuse, negligence or accident. A warranty can be obtained for altered equipment but only with
written consent from Desert Aire.
4. The following parts and components are excluded from the warranty: belts, lters, driers, fuses and
refrigerant.
5. Refrigerant coils or other components that corrode due to improperly balanced pool chemistry or
corrosive air quality will not be warranted.
6. All replacements or repairs will be FOB Germantown, WI.
7. This warranty shall be null and void if defects or damages result from unauthorized opening of the
refrigerant circuit, tampering with factory set controls, or operating outside the original design conditions.
8. Desert Aire shall not be liable for labor costs incurred in diagnosing the problem, or the removal
or replacement of the part or parts being repaired.
9. Desert Aire must preauthorize all warranty coverage described herein.
Desert Aire - CM3560 Manual

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Extended Warranty:
Your Desert Aire unit may have extended warrantees beyond this Standard Limited Warranty document.
Extended warrantees are only available at the time of the purchase of the original equipment. These extended
warrantees are covered under a separate document and their terms and conditions are separate from this
document. It is mentioned in this document for informational purposes only. Any Extended Warranties will be
identied on the Warranty Validation letter.
Any and all incidental or consequential damages are expressly excluded from this warranty. Some states do not
allow the exclusion of incidental or consequential damages for personal injury, so the above limitations may not
apply to you for certain damages. This warranty gives you specic legal rights, and you may also have other
rights, which vary from state to state. No person or representative is authorized to make any warranty or assume
any liability not strictly in accordance with the aforementioned.
Inquiries regarding warranty matters should be addressed to:
Desert Aire Corp
c/o Service Manager
N120 W18485 Freistadt Road
Germantown, WI 53022
PH: [phone]
FAX: [phone]
E-MAIL: [email protected]
Additional copies of this manual can be purchased for a nominal fee from Desert Aire. Desert Aire also posts the most
current revision of our I/O Manuals on our website. For a digital copy of the I/O Manual for your unit revision, please
submit request to the contact information listed above.
Desert Aire - CM3560 Manual

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Desert Aire - CM3560 Manual
Product Warning for the State of California

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TABLE OF CONTENTS
1. Installation .............................................................................................................. 9
1.1. Introduction ............................................................................................................. 9
1.2. Sensor Installation .................................................................................................. 9
1.2.1. Unit Sensor Installation ............................................................................... 10
1.2.2. Wall Mount Humidity and Temperature Sensor ........................................... 10
1.2.3. Water Temperature Sensors ....................................................................... 10
1.2.4. Outdoor Air Mounted Humidity and Temperature Sensor ........................... 10
1.3. Auxiliary Air Heating Control Wiring ........................................................................ 10
1.3.1 Auxiliary Heating - Dry Contact Closure ...................................................... 10
1.3.2 Auxiliary Heating - Proportional Signal ........................................................ 11
1.4. CM3560 Controller Overview ................................................................................. 11
2. CM3560 Controller Details ..................................................................................... 12
2.1. Menu Overview and General Instructions (Figure 1) ............................................. 12
2.2. Zone Setpoints (Figure 2) ....................................................................................... 14
2.3. Main Menu (Figure 4) ............................................................................................. 15
2.3.1 Status Menu (Figure 5) ............................................................................... 15
2.3.2 Occupacy Schedule (Figure 10) .................................................................. 17
2.3.2.1 Time/Date (Figure 11) ................................................................... 18
2.3.2.2 Daily Events (Figure 12) ............................................................... 18
2.3.2.3 Vacation Periods (Figure 13) ......................................................... 19
2.3.2.4 Special Days (Figure 14) .............................................................. 19
2.3.2.5 Temporary Occupancy (Figure 15) ................................................ 20
2.3.3 Service Menu (Figures 16 and 17) .............................................................. 20
2.3.3.1 Commissioning (Figure 18) ........................................................... 21
2.3.3.1.1 Conguration (Figure 19) .............................................. 21
2.3.3.1.2 Supply Blower Setup (Figure 31) .................................. 26
2.3.2.1 Exhaust Blower Setup (Figure 35) ............................................... 28
2.3.3.1.4 Airow Setup (Figure 41) ............................................. 31
2.3.3.1.5 BMS Setup (Figures 55 through 62) ............................. 36
2.3.3.2 Tuning – Dead Bands (Figure 63) ................................................ 39
2.3.3.2.1 Tuning – Di󰀨erentials (Figure 64) .................................. 40
2.3.3.2.2 Tuning – Energy Recovery (Figure 65) ......................... 41
2.3.3.2.3 Tuning – Pool Settings (Figures 66 & 67) .................... 41
2.3.3.2.4 Tuning – Air Heating (Figures 68 through 71) .............. 42
2.3.3.2.5. Tuning – Outdoor Air Pre-Heating (Figure 72 & 73) ..... 44
2.3.3.2.6. Tuning – Maximum Outdoor Air (Figure 74) ................. 44
2.3.3.3 I/O Status (Figure 75) .................................................................... 45
2.3.3.3.1 Digital Inputs (Binary) (Figure 76 through 80) ............... 45
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2.3.3.3.2 Analog Inputs (Figures 81 through 90) .......................... 49
2.3.3.3.3 Digital Outputs (Binary) (Figures 87 through 93) .......... 52
2.3.3.3.4 Analog Outputs (Figures 94 through 97) ....................... 54
2.3.3.4 Sensor O󰀨sets (Figures 97 - 103) .................................................. 55
2.3.3.5 Memory Options (Figures 104 - 106) ............................................. 57
2.3.4 Unit Revision (Figure 107) .......................................................................... 58
3 Alarm Menu ............................................................................................................ 59
3.1 System Alarms ......................................................................................................... 60
3.2 EEV Alarms .............................................................................................................. 60
3.3 Alarm Log (Figure 111) ............................................................................................. 60
4 Hardware Details ..................................................................................................... 61
4.1 Programmable Controller ......................................................................................... 61
4.2 Suction Pressure Transducers ................................................................................. 61
4.3 Discharge & Liquid Pressure Transducers .............................................................. 62
4.4 Suction, Liquid, Pool & Supply Air Temperature Sensors ........................................ 62
4.5 Zone and Outdoor Air Temperature and Relative Humidity Sensors ....................... 62
4.6 Di󰀨erential Air Pressure Sensors ............................................................................. 62
5 Appendix ................................................................................................................. 63
5.1 Internal Web Page .................................................................................................. 63
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1 Installation
1.1 Introduction
Your Desert Aire controller is designed for precise monitoring and control of air
temperature and relative humidity (RH) within a conditioned environment.
This CM3560 control system is easy to install and operate. The controller features an
internal display terminal (IDT). This display allows viewing and adjustment of the unit’s
sensors and setpoints. It also indicates the operating status of major components
inside of the dehumidier. The CM3560 controller also has the ability to control
auxiliary equipment such as a pool water or tower water pumps and auxiliary heating
devices for optimum energy e󰀩ciency.
Most sensors and devices have been factory-installed and wired inside of the
dehumidier. In most cases, only connection to a remote condenser, electrical power
connection, the supply air temperature sensor and an Ethernet connection to the
facilities computer network are required. For units requiring a wall mounted zone air
temperature and relative humidity sensor, wiring of this sensor to the unit will be
required. An outdoor air sensor will be mounted in the air hood of units rated for
outdoor duty. For indoor units, this sensor will need to be mounted in an outdoor area
and wired as well. Also, units with a pool condenser will require temperature sensors
be wired in the pool water piping.
The control system includes a web page which allows a virtual display terminal to be
accessed from any device on the computer network. Simply browse to the IP address
assigned to the dehumidier, enter the appropriate credentials, [user – Desert-Aire,
password – 18485] and select the DISPLAY tab. Logging is also available from this
web page.
The CM3560 controller also features optional building automation access. This
includes options for network connect ability including BACnet IP, BACnet MS/TP,
ModBus RTU and ModBus IP.
1.2 Sensor Installation
The CM3560 control system is normally provided with a unit mounted combination
relative humidity and temperature sensor. This sensor provides accurate control with
out the problems associated with wall-mounted sensors, such as faulty readings due
to hot spots or drafts. The supply air temperature sensor will be required to insure
proper operation of the air heating system. If a pool water condenser has been
provided in the dehumidier, pool water temperature sensors will need to be installed
in the water piping.
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1.2.1 Unit Sensor Installation
This sensor is factory mounted in the return air duct upstream of any outdoor
air intakes.
1.2.2 Wall Mount Humidity and Temperature Sensor
If your dehumidier was ordered with a wall-mount humidity and temperature
sensor, mount the sensor about ve feet above the pool deck on an interior
wall with natural air circulation. Avoid the following locations:
• Hot spots near concealed heating pipes, warm air ducts, supply
register outlets, or solar radiation.
• Cold spots due to a cold wall or drafts from stairwells, doors,
windows, or supply register outlets.
• Dead spots such as behind doors or in corners where room air
cannot circulate freely.
1.2.3 Water Temperature Sensors
Desert Aire dehumidiers ordered with the pool water heating option are
supplied with two water temperature sensors for each pool water condenser
purchased. One of these sensors is for the inlet temperature and the other is
for the outlet temperature. Each sensor comes with an immersion well
for mounting.
• Screw the wells into adapter ttings of the inlet and outlet pool
water piping. The wells are equipped with a 1/2” MPT connection.
• Install the sensors upstream and downstream from the dehumidier
of the auxiliary pool water heater.
• The sensors must be installed in a location where they will
accurately sense the pool water inlet and outlet temperature
conditions. This means you must have continuous water ow at the
sensor locations.
1.2.4 Outdoor Air Mounted Humidity and Temperature Sensor
If your dehumidier was ordered for indoor use, an outdoor air sensor will
need to be mounted outdoors. The sensor will come with a radiant shield to
allow ambient conditions una󰀨ected by direct sunlight.
1.3 Auxiliary Air Heating Control Wiring
Note: You must use the Desert Aire CM3560 control system to control or interlock with
the room heating system. This prevents wide uctuations in room air temperature. It
also prevents the heater from trying to heat the room while the dehumidier is running
in the cooling mode.
1.3.1 Auxiliary Heating - Dry Contact Closure
The standard Desert Aire CM3560 Controller provides a dry contact closure to
operate the auxiliary space heater. The contact closes to energize a heater
(may be supplied by others) which has its own power source.

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Install two wires from the thermostat blocks on the heater to the terminals H1 and H2
in the control panel of the dehumidier. See your wiring schematic for connection
details.
NOTE: Units with an internal electric air heater have an airow proving switch
installed between the heater and the control enclosure. If an air heater is
installed external to the unit, provide an external airow proving switch for
protection of the heater.
1.3.2 Auxiliary Heating - Proportional Signal
Desert Aire will provide a proportional 0-10 VDC direct-acting signal to
modulate a heating coil control valve or other auxiliary modulating heater.
Most proportional valves have either three (3) or four (4) terminals for eld-
installed wiring.
• Four-terminal valves have two terminals for 24 VAC power and two
terminals for the signal input.
• Three-terminal valves have one terminal for the “hot” 24 VAC input,
a second terminal for the “positive” signal input and a third, common
terminal for the “neutral” 24 VAC input and the “negative” signal
input.
The control signal may also be set for reverse-acting or for 2-10 VDC. Contact
Desert Aire’s service department for recommendations or instructions on how
these options can be implemented.
You must follow the instructions included with the valve cut sheet. Observe
the proper polarity or you may damage both the valve and the controller. (See
your wiring schematic for connection details.).
1.4 CM3560 Controller Overview
Desert Aire’s CM3560 microprocessor controller is a powerful, exible controller with
many useful features including:
• Display of room air temperature, relative humidity and refrigerant pressures.
• Display of equipment operating status such as dehumidication and cooling.
• Display of alarms for abnormal conditions such as sensor failures or tripped
safety controls.
• An optional seven-day occupancy timer which can control outdoor air
dampers (if used) to bring in fresh air when the dehumidier is an occupied
state.
• A convenient, easy-to-understand display interface which allows the
operator to view and change setpoints and time schedules.

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2 Controller Details
2.1 Menu Overview and General Instructions (Figure 1)
Your Desert Aire controller is pre-programmed and congured at the factory for use in
the application you have specied. The internal display terminal (IDT, see Figure 1)
allows the operator to monitor and adjust the setpoints of your Desert Aire system.
The IDT has an LCD screen and six keys. These keys are labeled as below:
The remote display terminal (RDT) has an LCD screen and six keys. These keys are
labeled as below:
The Home Screen (Figure 1) displays the Desert Aire logo and shows the dehumidier
status, zone temperature and relative humidity and the operational state of the fan,
compressor and air heating. The unit type is displayed in the upper right of the screen
indicating SP and the tonnage. Below this line, “Esc→Menu” indicates that if the Esc
key is pressed, the Main Menu will be displayed. Pressing Esc on any other screen will
take you back one screen. The “Prg→Stpt” indicates that if the Prg key is pressed, the
setpoints can be changed. The “↑ ↓ →Help” indicates that if the UP or DOWN keys
are pressed, the help screens will be shown. The UP or DOWN keys will now scroll
through the help screens.
Menu screens allow the user to select from a series of actions. The action that is
capitalized on the screen is selected by pressing the ENTER key. To cycle through the
selections on a menu screen, use the UP and DOWN keys.
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Desert Aire - CM3560 Manual
If setpoints or selections can be altered on a screen, the ENTER key will cycle through
those items. Once the cursor is over an item, the UP and DOWN arrow keys will
modify the setting. Numeric values require that the ENTER key be pressed to accept
the value. An “on” or “o󰀨” selection is altered as soon as the UP or DOWN keys are
pressed.
When an alarm is triggered, the red LED behind the ALARM key will light and will
remain on until the alarm is reset.
To view the alarms from any menu, simply press the ALARM key. If no alarm is active,
the display will state NO ALARMS. If an alarm is present, it will be displayed along
with the date and time it was triggered. The bottom two lines will display two data
points recorded when the alarm was triggered.
To reset the alarm, use the DOWN key until the reset instructions are shown. Pressing
the ALARM key for three seconds will reset all active alarms. See Section 3 for further
alarm and alarm data logging information.
Screens which display a small UP arrow in the upper right and a small DOWN arrow in
the lower right are part of a series of screens which can be accessed by pressing
either the UP or DOWN arrow keys. If the operator has not pressed a key for an hour,
the display will return to the Home Screen.
Figure 1

14 Desert Aire - CM3560 Manual
2.2 Zone Setpoints (Figure 2)
Pressing the Prg key from the Home Screen displays the ZONE SETPOINTS
(Figure 2). This menu allows for modications of the temperature and humidity
setpoints specic to the unit. To modify the setpoints, press the ENTER key and use
the arrow keys until the desired setting is shown. Press the ENTER key to accept the
setpoint value.
To return to the Home Screen, press the Esc key.
Figure 2
If pool heating is included in the unit, the UP and DOWN arrows keys will be shown on
the right of the screen. Press the DOWN key and the screen shown in Figure 3 will
appear. Set the pool water temperature setpoint with the ENTER and UP and DOWN
keys and press the ENTER key to modify. Pool 2 setpoint will be shown in a similar
manner when a second pool condenser is supplied with the dehumidier.
To return to the MAIN MENU, press the Esc key.
Figure 3

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Desert Aire - CM3560 Manual
2.3 Main Menu (Figure 4)
Pressing the Esc key from the Home Screen displays the MAIN MENU (Figure 4).
This menu allows the operator to select the STATUS MENU, set an Occupancy
Schedule, enter the Service Menu and view the Unit Revision. To return to the Home
Screen, press the Esc key.
Figure 4
2.3.1 Status Menu (Figure 5)
Selecting the Unit Status from the MAIN MENU displays a text explanation of
the unit. The rst line will show one of the following states:
• O󰀨/Satised
• Heating Req.
• Cooling Req.
• Dehum Req.
• Dehum & Heat
• Dehum & Cool
• Low Air Flow
• Low Suct. Pr.
• EXV Init.
The Airow condition is shown on the second line. The Occupied state (either
Occupied or Un-Occupied) is shown on the third line. The Fourth line will
display the air mode either Normal, Event Mode, Max O/A or Purge Mode. The
fth line displays will display “BMS has Disabled Unit” if the BMS has turned
the unit o󰀨. The date and time will be shown on the bottom line. To return to
the STATUS MENU, press the Esc key.
Figure 5

16 Desert Aire - CM3560 Manual
Pressing the DOWN key will display the screen shown in Figure 6. This screen
will show Circuit A compressor status and if it is waiting on its non-short cycling
timer. The o󰀨 state of circuit A or the condenser used is shown on the third
line. The Air or Water priority is shown on the fourth line. To return to the
STATUS MENU, press the Esc key.
Figure 6
Pressing the DOWN key will display the screen shown in Figure 7. This screen
will show Circuit B compressor status and if it is waiting on its non-short cycling
timer. The o󰀨 state of circuit B or the condenser used is shown on the third line.
The Air or Water priority is show on the fourth line. To return to the STATUS
MENU, press the Esc key.
Figure 7
Pressing the DOWN key will display the screen shown in Figure 8. This screen
will show the EXV of Circuit A along with the superheat, suction temperature,
suction pressure suction P2T, steps and percent open of the EVX. This screen
is for troubleshooting only. To return to the STATUS MENU, press the Esc key.

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Desert Aire - CM3560 Manual
Figure 8
Pressing the DOWN key will display the screen shown in Figure 9. This screen
will show the EXV of Circuit B along with the superheat, suction temperature,
suction pressure suction P2T, steps and percent open of the EVX. This screen
is for troubleshooting only. To return to the STATUS MENU, press the Esc key.
Figure 9
2.3.2 Occupacy Schedule (Figure 10)
Select the OCCUPANCY SCHEDULE from the MAIN MENU to enable a
schedule to place the dehumidier in the occupied mode. See Figure 10. To
enable a schedule, select ‘Yes’, and press ENTER. The schedule will need to
be setup before this will be enabled. Pressing the Prg key from this menu
allows the date and time to be modied. To return to the MAIN MENU, press the
Esc key.
Figure 10

18 Desert Aire - CM3560 Manual
2.3.2.1 Time/Date (Figure 11)
This screen sets the time, date and day of week and the time zone. To
modify these settings, press the ENTER key until the cursor is over
the appropriate item and use the arrow keys until the desired setting is
shown. All times are set in the 24 hour format. Pressing the ENTER
key will accept that value and step to the next item. To return to the
OCCUPANCY SCHEDULE, press the Esc key.
Figure 11
2.3.2.2 Daily Events (Figure 12)
This is where each day’s events are set. Four settings are possible,
which will allow two separate occupancy periods. Check the rst box
by pressing the UP key when the cursor is over the check box. Set the
time in 24 hour format and then select ‘Occupied’ or ‘Un-Occupied’.
Save this data at the bottom of this screen by selecting ‘Yes’ and
pressing ENTER.
Once a day is entered, these settings can be copied to any other day
by selecting the day to copy, setting the Copy To: the appropriate day,
and then selecting Ok? to ‘Yes’. Modify these days as appropriate. To
return to the OCCUPANCY SCHEDULE MENU, press the Esc key.
Figure 12

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Desert Aire - CM3560 Manual
2.3.2.3 Vacation Periods (Figure 13)
The Vacation Period will allow three sets of vacation to keep the
dehumidier ‘Occupied’ or ‘Un-Occupied’. Set the range of days that
this will occur, the Start Date and End Date for that holiday. To return
to the OCCUPANCY SCHEDULE MENU, press the Esc key.
Figure 13
2.3.2.4 Special Days (Figure 14)
Also available are 6 special days where the full day can be set for
either ‘Occupied’ or ‘Un-Occupied’. To return to the OCCUPANCY
SCHEDULE MENU, press the Esc key.
Figure 14

20 Desert Aire - CM3560 Manual
2.3.2.5 Temporary Occupancy (Figure 15)
This screen allows the unit to be manually set to Occupied for a preset
amount of time. Press the ENTER key and enter the hours you would
like the unit to be temporarily in the occupied mode. Press the ENTER
key again and enter the minutes you would like the unit to be
temporarily in the occupied mode. Press the ENTER key again and
the cursor will begin blinking over the “Set Override” message. Press
UP and ENTER keys to set this override to ‘On’. The dehumidier will
now be ‘Occupied’ for this period of time. When the override expires,
the screen will again display Set Override, and the dehumidier will
return to its normal state. To return to the OCCUPANCY SCHEDULE
MENU, press the Esc key.
Figure 15
2.3.3 Service Menu (Figures 16 and 17)
Selecting the SERVICE MENU will display the Login Screen (Figure 16). Enter
the service password, 1234, and press ENTER.
Figure 16
The SERVICE MENU gives access to Commissioning, Tuning, I/O Status,
Sensor O󰀨sets and Memory Options. (Figure 17)