Denali M1 User manual

Denali M1 Thermoelectric Chiller
Manual
(from Solid State Cooling Systems built exclusively for Cole-Parmer)
167 Myers Corners Road, Wappingers Falls NY, 12569
[phone]
email: [e-mail]
www.sscooling.com

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
TELEPHONE:[phone] FAX:[phone] WEB:WWW.SSCOOLING.COM REVISION E1
2

DENALI M1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
TELEPHONE:[phone] FAX:[phone] WEB:WWW.SSCOOLING.COM REVISION E1
T
TA
AB BL LE E O OF F C
CO
ON NT TE EN NT TS S
SAFETY PRECAUTIONS AND SYMBOLS _____________________________________________ 2
SECTION 1 _________________________________________________________________________ 3
INTRODUCTION______________________________________________________________________ 3
SECTION 2 _________________________________________________________________________ 4
SPECIFICATIONS _____________________________________________________________________ 4
SECTION 3 _________________________________________________________________________ 6
HOOK UP__________________________________________________________________________ 6
3.1 ELECTRICAL CONNECTIONS (SEE FIGURE 3B)____________________________________________ 7
3.2 PLUMBING CONNECTIONS (SEE FIGURE 3B) _____________________________________________ 7
3.3 AIR CONSIDERATIONS _____________________________________________________________ 8
3.4 COOLANT FILL ___________________________________________________________________ 8
SECTION 4 _________________________________________________________________________ 8
START UP__________________________________________________________________________ 8
SECTION 5 _________________________________________________________________________ 9
OPERATION ________________________________________________________________________ 9
5.1 SIMPLE OPERATION _______________________________________________________________ 9
5.2 ADVANCED OPERATION ____________________________________________________________ 9
5.3 ALARM SIGNAL _________________________________________________________________ 11
SECTION 6 ________________________________________________________________________ 12
SYSTEM ALARMS/TROUBLESHOOTING___________________________________________________ 12
SECTION 7 ________________________________________________________________________ 13
DENALI M1 RS-232 COMMUNICATION __________________________________________________ 13
7.1 COMMUNICATION SPECIFICATION ___________________________________________________ 13
7.2 COMMUNICATION PROTOCOL_______________________________________________________ 14
7.3 RS232 COMMUNICATION EXAMPLES _________________________________________________ 15
SECTION 8 ________________________________________________________________________ 15
TECHNICAL SUPPORT________________________________________________________________ 15
SECTION 9 ________________________________________________________________________ 16
MSDS FOR COOLANTS_______________________________________________________________ 16
WARRANTY POLICY ______________________________________________________________ 28

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
TELEPHONE:[phone] FAX:[phone] WEB:WWW.SSCOOLING.COM REVISION E1
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CE Declaration of Conformity
We: Solid State Cooling Systems
167 Myers Corners Road
Wappingers Falls, NY 12590
USA
declare under our sole responsibility that the
Denali M1
meets the provisions of the directives:
2004/108/EC EMC Directive
2006/95/EC Low Voltage Directive
EN 61326-1: 2006 Emissions and Immunity
EN 61000-3-2: 2006 Harmonics Emissions
EN 61000-3-3: 2008 Voltage Fluctuations and Flicker
EN 61010-1: 3rd Edition Safety Low Voltage Directive Safety requirements for
electrical equipment for measurement, control, and
laboratory use.
Lloyd F Wright
Chief Technology Officer
Date
October 22, 2013

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
TELEPHONE:[phone] FAX:[phone] WEB:WWW.SSCOOLING.COM REVISION E1
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SAFETYPRECAUTIONSAND SYMBOLS _________________________
Read the MSDS for the coolant used and follow all safety precautions listed in the MSDS
prior to removing coolant tubes or opening the fill cap as this could result in contact with the
coolant inside.
C
CA AU UT TI IO ON N
Never disassemble the chiller as irreparable damage may occur.
Any attempt to open or repair the unit will void the warranty
Never store the chiller over 60 °C.
Never operate the chiller in ambient temperatures of 40 ºC or greater.
Never operate the chiller within 2 ºC of the coolant’s freezing point.
Always use only proper coolants as specified in manual. SSCS recommends Koolance
LIQ-702CL-B (27% Propylene Glycol and water)
Never ship the chiller with coolant inside the liquid cold plate as freezing temperatures may be
encountered which would damage the unit. Always pump all coolant out of the chiller prior to
shipping.
Symbols Used in this Manual
The red CAUTION equilateral triangle symbol appears throughout
the manual. Please follow the important instructions accompanying
this symbol to avoid significant damage to the chiller.
The red WARNING equilateral triangle symbol appears throughout
the manual accompanying certain maintenance and repair activities.
Please follow the important instructions accompanying this symbol
to avoid situations that could cause injury to the operator or other
personnel.
CAUTION
WARNING

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
TELEPHONE:[phone] FAX:[phone] WEB:WWW.SSCOOLING.COM REVISION E1
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Manual
D
DE
EN NA AL LI I M
M1 1
T
TH
HE ER RM MO OE EL LE EC CT TR RI IC C C CH HI IL LL LE ER R
SECTION 1
INTRODUCTION_________________________________________________
The Denali M1 mini recirculating chiller utilizes thermoelectric
technology to deliver 180 Watts of cooling capacity without the use
of compressors or refrigerants. With fewer moving parts, the system
is highly reliable and energy efficient. As the world’s smallest, air
cooled recirculating chiller, the Denali M1 is ideal for laboratory
use. It is the perfect bench-top solution to precisely control the
temperature of analytical equipment, lasers, low-light CCD
cameras, microtiter cold plates, sample stages or any process
requiring point of use temperature control. The system is versatile
and simple to operate. It also has a cycling feature where two
different temperature set points may be entered with a soak time at
each temperature and the number of cycles desired.
The chiller ships with the items listed below. Please locate them
prior to discarding the shipping box.
(1) Denali M1 Recirculating Liquid Chiller
(1) 200 watt 13.5 VDC Table Top Power Supply
(1) AC Line Cord
(1) 250 ml Squirt Bottle
(2) Valve quick disconnect fittings, 1/8th inch hose barb
PRODUCT

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
TELEPHONE:[phone] FAX:[phone] WEB:WWW.SSCOOLING.COM REVISION E1
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SECTION 2
SPECIFICATIONS _______________________________________________
Operating (Set Point) Range: 0°C to 45 °C
Ambient Temperature: 10°C to 40 °C (non-condensing)
Stability / Repeatability:+ 0.1 °C with constant load (even near ambient)
Cooling Capacity: 180 watts @ 20°C in a 20°C ambient
(See figure 1 for cooling curve)
Heating Capacity: >240 watts @ 20°C in a 20°C ambient
Noise (at 1 meter): < 55 dBA
Coolant Type: 27% Propylene Glycol and Water recommended preventing
bacterial growth and minimizing noise and extending pump
life. (Note: propylene glycol is non-toxic). SSCS
Recommends Koolance LIQ-702CL-B coolant.
Ethylene Glycol and Water mixtures are also acceptable.
Note: Methanol, Ethanol, or Isopropyl Alcohol may not
be used as coolants, either by themselves or in water
mixtures; use of these coolants voids the chiller
warranty.
Process Fluid Fittings: 1/8” CPC quick disconnect with shut-off valves
Coolant Pump: 500ml/min brushless DC magnetically driven gear
(See Figure 2 for pump curve)
Coolant Outlet Pressure: Nominal 10psi @ 500ml/min, Maximum 35 psig
Tank Volume: 75 ml
Wetted Materials: Copper, polymers and stainless steel
Size (L x W x H): 7.5” x 5” x 7” (19 x 13 x 18 cm)
Weight: 9 lbs (4.1 kg)
Operating Voltage: 13.5VDC, 15 amps max
AC/DC Power Supply Output: 200 watt, 13.5 VDC; 100-240 VAC input
AC/DC Power Supply Input: Universal 100-240 VAC, 50/60 Hz, 2.8 amps max
Communications: Keypad or RS232 interface
Alarms: Temperature, fluid level, system or component failure
Safety Certifications: (with power supply) CE/ UL (TUV)
EN 61010-1: 3rd Edition
UL 61010-1: 3rd Edition
CAN/CSA 61010-1: 3rd Edition
RoHS RoHS Compliant

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
TELEPHONE:[phone] FAX:[phone] WEB:WWW.SSCOOLING.COM REVISION E1
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Figure 1
Denali M1 Capacity in 20°C Ambient
Figure 2
Denali M1 Pump Performance @ 20°C Fluid Temperature
Note: Pump to pump variation is +/- 10%.

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
TELEPHONE:[phone] FAX:[phone] WEB:WWW.SSCOOLING.COM REVISION E1
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SECTION 3
HOOK UP______________________________________________________
Figure 3A: Top View
Figure 3B: Back View
Tank
(Under Magnet Cover)
9-pin Dsub
For RS-232 &
Dry Contact Alarms
Coolant
Return
Coolant
Supply
Keypad
Airflow Outlet
Display
Screen
Airflow Inlet
DC Power
Connector
ON/OFF
Switch

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
TELEPHONE:[phone] FAX:[phone] WEB:WWW.SSCOOLING.COM REVISION E1
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3.1 ELECTRICAL CONNECTIONS (SEE FIGURE 3B)
Power: The Denali M1 comes with a 200w 13.5VDC bench top
power supply. Plug the DC output connector into the Denali M1 as
shown in figure 3B.
A wide variety of power cords are available to support universal
power operation:
Country / Region
Part Number
USA/Canada
22-22333-1
Europe
22-22333-2
Japan
22-22333-3
UK
22-22333-4
Israel
22-22800-1
Australia
22-23213-1
Korean
22-23526-1
China (3 prong)
22-23661-1
NEMA 6-15 208 US Straight
16-23918-1
NEMA L6-15 208 US Twist
16-23918-2
Alarms: The Denali M1 has one 250 VAC 1 amp dry contact relay
to indicate a system alarm or temperature out of range. Connect to
this dry contact on the 9-pin dsub connector as follows:
System/Temp Alarm: Pin 1
Alarm Signal Return: Pin 6
RS 232: The Denali M1 comes with a RS-232 communication link.
Connections are made via a 9-pin dsub connector as follows:
9 Pin D-Sub Pin#
RS-232 Signal Description
2
Transmit Data (TXD)
3
Receive Data (RXD)
5
Ground
3.2 PLUMBING CONNECTIONS (SEE FIGURE 3B)
The Denali M1 has two Colder Products compatible 1/8” valved
quick disconnect coolant fittings. Two mating valved quick
disconnect inserts are included with 1/8” ID hose barb fittings for
convenience.
WARNING
Electrical Shock
Hazard: Never Plug
in a Line Cord with
Wet Hands

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
TELEPHONE:[phone] FAX:[phone] WEB:WWW.SSCOOLING.COM REVISION E1
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3.3 AIR CONSIDERATIONS
Restricting airflow into or out of the Denali M1 will impair
performance. Maintain at least 3” of clearance around the air inlet
and outlet to ensure no restriction of airflow.
3.4 COOLANT FILL
The coolant fill cap is located at the top of the unit. Twist and
remove the plug then use the 250 ml bottle (shipped with the chiller)
to fill reservoir prior to starting unit.
SECTION 4
START UP_____________________________________________________
Start-up the chiller using the following steps:
1) Connect 1/8” ID hose to fluid connections located on the back
side, labeled Coolant Supply and Coolant Return.
2) Open the reservoir cap on top. Using the 250 ml bottle provided,
fill the reservoir to just below the bottom of its neck with
coolant.
3) Plug the table top power supply output into DC power connector
on back of chiller. (see Figure 3B)
4) Plug table top power supply power cord into an AC power outlet.
5) Optional: connect the alarm signal to the 9-pin dsub connector as
per section 3.1.
6) Turn on switch located to the left of the display. The front
display should read the current coolant temperature. If the front
display reads “TANK LOW”, add coolant to the reservoir until
the display changes to read the coolant temperature.
Important Notes:
1) The Denali M1 performs a self-diagnostic check for 10 seconds
after turn-on. If the tank level low alarm persists, or if another
alarm is displayed, consult section 6.0 of this manual.
2) If the chiller tank is filled above the bottom of its neck, coolant
can leak out the top when the cap is closed.
WARNING
Electrical Shock Hazard:
Never Plug in a Line Cord
with Wet Hands
Read the Coolant MSDS
Prior to filling the chiller
Use only recommended
coolants
WARNING
CAUTION

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
TELEPHONE:[phone] FAX:[phone] WEB:WWW.SSCOOLING.COM REVISION E1
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SECTION 5
OPERATION____________________________________________________
The chiller is operated via the control panel located on the top of the
unit. The control panel has an 8-character LCD display and three
input keys: UP, DOWN, and ENTER. These keys work as follows:
Key
Action
UP
Pressing the UP key raises the parameter value displayed.
DOWN
Pressing the DOWN key lowers the parameter value displayed
ENTER
Pressing the ENTER key momentarily enters the parameter changed.
ENTER
Pressing and holding the ENTER key for 3 seconds changes the LCD display menu.
5.1 SIMPLE OPERATION The Denali M1 comes with preset operating parameters that will
work well for most applications. If temperature control at one
temperature is desired, follow the steps below.
1) Turn on chiller and wait for display to read TEMP: XX.X°C
2) Press the UP or DOWN keys to change SETTEMP1 to the
desired set point.
3) Press the ENTER key.
The chiller will now control to the set point temperature. To
change the set point temperature just press the UP or DOWN
keys again to change SETTEMP1 to the new set point, followed
by the ENTER key.
5.2 ADVANCED OPERATION
The Denali M1 has two menus: the Status Menu and the Parameter
Input Menu. The Status Menu shows the current temperature of
coolant leaving the chiller (see Figure 4). The Status Menu also
allows input of new coolant temperature set points when the cycling
feature is off. The Parameter Input Menu allows input of set point
temperatures, soak times, number of cycles if cycling between two
temperatures, an alarm temperature, a temperature offset, and a
password to enter the Parameter Input Menu. (The default password
is 0000 until changed by the user.) Press and hold the enter key for 3
seconds to enter the parameter menu.
Note: While in the Parameter Input Menu, if no keys are pressed for
30 seconds the display will revert to the status menu.

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
TELEPHONE:[phone] FAX:[phone] WEB:WWW.SSCOOLING.COM REVISION E1
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Figure 4: MENU STRUCTURE:
NOMENCLATURE:
UP or Increase Value
Down or Decrease Value
↵Press Enter Momentarily
Press & Hold Enter Key 3 Sec
SIMPLE OPERATION
ADVANCED OPERATION
(STATUS MENU)
press and hold enter key
(PARAMETER INPUT MENU)
TEMP: XX.X°C (current temp)
PASSWORD XXXX
P
RESS

OR

(change set point)
↵
SETTEMP1 XX.X°C
SETTEMP1 XX.X°C
↵
↵
TEMP: XX.X°C (current temp)
SETTIME1 XXXX (in minutes)
↵
SETTEMP2 XX.X°C
↵
SETTIME2 XXX (in minutes)
↵
#CYC XXX
↵
ALRM TMP +/-X.X°C
↵
OFFSET +/-X.X°C
↵
CHNG
PWD
Y/N
(change
password)
Allowable Value Ranges:
SETTEMP1 2 TO 45 °C
SETTIME1 0 TO 999 minutes
SETTEMP2 2 TO 45 °C
SETTIME2 0 TO 999 minutes
#OF CYC 0 TO 999
ALRM TMP 1 TO 9OCin 0.1°C increments
OFFSET -5 °C TO 5°C in 0.1°C increments
CHNG PWD Y OR N
NOTE: If continuous control at one set-point temperature is desired, set # OF CYCLES to zero.

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
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Status Menu: The status menu displays the current coolant
temperature in °C or will display an alarm type should an alarm
occur.
Pressing the UP or DOWN keys with # of cycles set to zero will
change the set point temperature upon pressing the START key.
Parameter Input Menu: The parameter input menu allows input of
operating temperatures, soak times, number of cycles desired,
temperature units desired, time units desired, the alarm temperature
range and an offset temperature to change the displayed temperature.
SETTEMP1 = Set point of first control temperature.
If # OF CYCLES is set to zero, this is the control temperature.
SETTIME1 = Soak time at temperature 1.
Not used if # OF CYCLES is set to zero.
SETTEMP2= Set point of second control temperature.
Not used if # OF CYCLES is set to zero.
SETTIME2 = Soak time at temperature 2.
Not used if # OF CYCLES is set to zero.
# OF CYC = Number of cycles between temperature1 and
temperature2. If set to zero, the chiller will control at
temperature SETTEMP1.
ALRM TMP = +/- Alarm temperature set point.
If the current temperature is outside of the set point +/- the dry
contact alarm will open.
OFFSET = Used to adjust the current temperature displayed.
Entering 5 ºC will increase the displayed temperature by 5 ºC.
Typically used to match temperatures with an external sensor.
Also adjusts RS-232 temperature reported.
CHG PWD = Y/N Entering Y allows user to change the password
allowing entry into the parameter input menu.
5.3 ALARM SIGNAL The Denali M1 has one normally closed dry contact alarm for
temperature out of range or system failure, located on pins 1 & 6 of
the 9-pin dsub connector.
A list of system failures causing the dry contact alarm to open can be
found in Section 6. In the event of a failure, the alarm type will be
shown on the front display.

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
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SECTION 6
SYSTEM ALARMS/TROUBLESHOOTING ______________________________
The Denali M1 has two system alarms that when triggered will
show on the display. When an alarm is displayed the system will
not attempt to heat or cool the coolant.
TANK LOW: Liquid reservoir level is too low. Unless filling for
the first time, check all outside plumbing lines for leaks. Once all
leaks are sealed, remove the cap and add more process fluid until
the alarm disappears.
RTD OPEN or RTD SHORT: The temperature sensor has failed or
its connector has come loose. Turn off the chiller and disconnect
the AC power cord. Contact SSCS for an RMA number to return
the unit for RTD replacement.
Important: The tank level low alarm will automatically reset when
the tank is filled. The RTD failure alarm will not reset until the
system power is turned off.
OTHER ISSUES:
COOLING CAPACITY INSUFFICIENT: If the chiller is not
providing sufficient cooling, check that the air inlet and outlet are
not restricted and that the fan is running. If airflow is not restricted,
contact SSCS technical support.
RS-232 COMMUNICATION NOT WORKING: If the RS-232
communications does not seem to be working try cycling the power
to reset the communications. If the problem persists, call SSCS
technical support 845-296-1300.
Do not remove cover or
attempt to repair unit,
as electrical shock
hazards exist inside.
WARNING

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
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SECTION 7
DENALI M1 RS-232 COMMUNICATION ______________________________
The Denali M1 comes with a modified (pin-out) RS232
communication port. The chiller uses this port to communicate a
comprehensive set of control parameters with a Host PC - these
parameters are outlined in Section 7.2. This port is a 9-pin female d-
sub connector and is found on the front of the chiller
(see Figure 3A).
Note also that pins 1 and 6 on this port are connected to a dry contact
relay and thus the RS-232 connecting cable must be customized.
This relay is "closed" when the unit is functioning properly and the
RTD temperature is within the Alarm Range. The relay is “open”
when the RTD temperature is outside the Alarm Range or any other
fault exists.
7.1 COMMUNICATION SPECIFICATION
Table 1: Signal definition and wiring
Host / Master
9-Pin D-sub Pin #
Chiller / Slave
9-Pin Female D-sub Pin#
2 (Receive – Rx)
2 (Transmit – Tx)
3 (Transmit – Tx)
3 (Receive – Rx)
5 (Ground)
5 (Ground)
Specification
Speed: 9600 baud
Data Flow Control: Manually set RTS (no “hardware handshaking”)
Data Format: 8-bit serial
Number of Stop bits: 1
Parity: None
Transmission Breakdown: One command byte followed by zero, one, or two data
bytes depending on data type.
Master/Slave: The chiller is always the SLAVE
Interrupts Reported: None, must be polled for status
Transmission Length: < 15 meters
Minimum Time Required Between
Host Command Transmissions 0.500 sec

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
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7.2 COMMUNICATION PROTOCOL
Table 2: Command and Data Bytes
Bit Position
Description
Bit =1
Bit = 0
Command Byte
Bit 7 (MSB)
Set Remote Control
remote control
local control (chiller)
Bit 6
Remote On/Off
chiller On
chiller in standby
Bit 5
Communication
Direction
remote to chiller
(command from master)
chiller to remote
(status from chiller)
Bits 4 – 0
Parameters being communicated (see table 2)
Data Bytes
1 or 2 bytes depending on parameter (see tables 3 and 4)
Table 3: Control Parameter
Bits 4 – 0
Parameter
No of Data Bytes
00001
Chiller set point temperature
2
01001
Current temperature at chiller coolant output
2
01000
Faults from chiller (fan, RTD failure, etc.)
1
Table 4: Temperature Data Bytes (2 bytes)
The 2 data bytes for the temperature set point and transmission of the current temperature represent the
value of the temperature in 0.1o C increments.
For example:
Temperature (examples)
High Byte
Low Byte
Hexadecimal
0.1 °C
00000000
00000001
0001
1.0 °C
00000000
00001010
000A
10.0 °C
00000000
01100100
0064
20.0 °C
00000000
11001000
00C8
30.0 °C
00000001
00101100
012C
40.0 °C
00000001
10010000
0190
Table 5: Faults Data Byte (1 byte)
0 = OK, 1 = Fault
Bit Position
Fault Assigned
Hex value when fault is present
7 (MSB)
Temperature below alarm range
80
6
unassigned
N/A
5
unassigned
N/A
4
RTD fault
10
3
unassigned
N/A
2
Temperature above alarm range
04
1
unassigned
N/A
0
Tank Level Low
01

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Notes
1) The Oasis can store 8 bytes of transmission. It is recommended that the transmissions be limited to
1 data exchange of one, two, or three bytes (depending upon the data being communicated), until
the master has received the acknowledgement from the Oasis.
2) An acknowledgement of the transmission will be sent back to the master when the Oasis reads the
data. In the case of data transmitted to the Oasis Controller only, the acknowledgement will be the
command byte. In the case of data requested by the master, the acknowledgement will be the
command byte plus the data byte(s) requested.
3) For software that requires data types to be specified:
- Format of command bytes: number, “word”, unsigned, MSB first
- Format of sent data bytes: number, “word”, unsigned, LSB first
- Format of received data bytes: variable length string
4) If RS-232 communications does not seem to be functioning, cycle the main power to reset.
7.3 RS232 COMMUNICATION EXAMPLES
Example
Communications Sequence
1) Send set point of 25°C to chiller
Host sends command byte = E1 (hex)
Host sends LOW data byte = FA (hex)
Host sends HIGH data byte = 00 (hex)
Chiller sends command byte = E1 (hex)
2) Read chiller set point
Host sends command byte = C1 (hex)
Chiller sends command byte = C1 (hex)
Chiller sends LOW data byte = set point value in hex (LB)
Chiller sends HIGH data byte = set point value in hex (HB)
3) Read the actual temperature
Host sends command byte = C9
Chiller sends command byte = C9
Chiller sends LOW data byte = actual temp in hex (LB)
Chiller sends HIGH data byte = actual temp in hex (HB)
4) Read the faults table
Host sends command byte = C8
Chiller sends command byte = C8
Chiller sends faults data byte = fault data in hex
SECTION 8
TECHNICAL SUPPORT ___________________________________________
Delighting our customers is our highest priority. Please contact us
immediately for technical assistance whenever you have questions
or concerns.
Hours: 8 a.m. to 5 p.m. Eastern Time, weekdays
Telephone: [phone]
Fax: [phone]
E-mail: [email protected]om

DENALI M1 52-13382-1
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SECTION 9
MSDS FOR COOLANTS

DENALI M1 52-13382-1
SOLID STATE COOLING SYSTEMS,167 MYERS CORNERS ROAD,WAPPINGERS FALLS,NY 12590
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