casey™ (v2.0) - SmartWay Solutions

SmartWay Solutions, Inc.
CASEY V2.0- TECHNICIAN’S INSTALLATION & SET-UP GUIDE
CASEY™ (V2.0)
HVAC Monitoring System
TECHNICIAN’S INSTALLATION & SET-UP GUIDE
CASEY™ is a small-specialized
computer with air sensors for
monitoring the operating efficiency of
heating & cooling systems. CASEY
works by comparing the return &
supply air sensor readings to what its
computer calculates they should be.
When the system is operating outside
of specifications CASEY will send an
alert report by fax and email. It will
also post the last 20 reports on a
password required private web page.
To program CASEY and view system
information, a SmartWay MS20 Tech
Pad is necessary (just one Tech Pad
Model
CASEY(model
# MSV10)
Use
Detecting &
reporting
incorrect
operation of
conventional
& heat
pump forced
air systems
Is needed to work on all CASEY
monitors)
Monthly CASEY sends a report to
confirm
it‘s
operating
correctly.
Optional sensors (such as the Water
Alert Float Switch) can be attached to
the two F1 & F2 circuit board
terminals.
The optional Customer
Alert Switch, which allows customers
to manually send a CASEY report, can
be connected to its jack on the circuit
board.
Inputs
▪ Supply & Return
Air Sensors
Outputs
▪ Telephone
Out
▪ Tech Pad
▪ Water Alert
Float Switch
▪ Customer Alert
Switch
▪ Thermostat
Wiring (R, C, W/Y,
Y/O, G, and W2)
▪ Optional Normally
Open or Closed
Sensors
Read these instructions carefully.
Failure to follow these instructions
can damage the product or cause a
hazardous condition.
2. Check the ratings given in the
instructions and on the product to
make sure the product is suitable
for your application.
3.
Installer must be a trained,
experienced service technician.
Locate CASEY between the return &
supply air ducts so it can be reached
by the attached to sensors wiring.
CASEY can be mounted on a wall or
return air duct.
3. Mount the metallic silver sensor in
the supply air duct so it’s at least
18” downstream from the furnace
Casey Computer
Comments
Optional
Sensors:
▪ Air Filter
Pressure Switch
▪ Outdoor Air
Temperature
Sensor
To program
CASEY a MS20
Tech Pad is
necessary
When installing this product:
1.
2. Mount black plastic sensor in the
return air duct so it’s not exposed
to water from a frozen evaporator
coil or overflow drip.
Locate a Place to Mount the CASEY
A contractor number is required to
program CASEY. Please call 866743-5663 if you need your number.
▪ Optional External
Temperature
Sensor
INSTALLATION
MOUNTING INSTRUCTIONS
4. After completing installation, use
these instructions to check out the
product operation.
CAUTION
Personal Electrical Shock Hazard
Can cause electrical shock or
equipment damage.
Disconnect power before beginning
installation
or evaporator coil.
Mounting the CASEY
CAUTION
4. Secure each sensor with sheet
metal screws (not included) in the
slots.
Equipment Damage Hazard
Mounting CASEY inside any HVAC
unit can damage it. Mount on a wall,
post or return air duct.
5. Connect the white wires from the
Supply Sensor to corresponding
terminals on Terminal Block 2 (see
diagram on page 3)
1. After selecting the mounting
location, drive a sheet metal screw
(not supplied) leaving the head of
the screw 1/8 in from the wall or
duct.
6. Connect the Red, Black, White &
Green Return Sensor wires to
corresponding terminals on
Terminal Block 2 (see diagram on
page 3)
2. Remove the set screw, hold the
front cover and swing open.
3. Hook the CASEY onto the screw
and mark the location for the
second screw.
WIRING INSTRUCTIONS
4. While holding the CASEY in place,
drive the second mounting screw
where marked.
Wiring the CASEY HVAC System
CAUTION
Mounting the Return and Supply Air
Sensors
Personal Electrical Shock Hazard
Can cause electrical shock or
equipment damage.
1. Drill a 1-1/8 hole in the duct to
install the return (black) air sensor.
Drill 3/8” to install the thin (metallic
silver) supply air sensor.
SW0711-1
Disconnect power before beginning
installation
2
CASEY V2.0- TECHNICIAN’S INSTALLATION & SET-UP GUIDE
1. Loosen the thermostat terminal
screws (R, C, W/y, Y/o, W2) on the
CASEY
wiring diagram (see diagrams below)
with 5 conductor thermostat wire (use
6 conductor wire if heatpump system)
2. Connect the system according to
the conventional or heat pump
3. Tighten each terminal screw.
CASEY V2.0- TECHNICIAN’S INSTALLATION & SET-UP GUIDE
4. Slide CASEY’s power switch to the
ON position. On CASEY’s circuit
board the Green LED will shine
steady (Red will briefly flash). If the
Green LED won’t light up, CASEY
is not operating correctly (see the
Troubleshooting Section - page10).
NOTE: If Dual Fuel HP System
Move the # 3
Dip Switch to
the Right or
ON Position.
5. Plug in the Tech Pad. The LED on
the CASEY flashes once or twice,
then remains on.
NOTE: If Fail Safe Cool HP System
Connect the “B” wire
to the Y/O terminal
and move the #2 DIP
Switch to the right or
ON position.
6. The Tech Pad’s LCD screen then
displays the software version for
the Tech Pad (ESM 20) and
CASEY (ESM 10).
ESM 20 VERS 4.09
ESM 10 VERS 2.91
Wiring External Air Temperature
Sensor (Optional)
Note: If the Tech Pad next displays
Customer Code (CUST: XXXXXXXX),
go to step 8.
This sensor is used with heat pump
systems to report outside air
temperature. Connect the sensor’s
two BLK wires to Terminal Block # 4
(see page 3). Mount the sensor in a
protected outside location.
CASEY HVAC Monitor
Detail of individual component parts
7. The Tech Pad displays the
Contractor Code. If this is your
Contractor Code, press YES. If the
is not your code, press NO and
enter your Contractor Code.
Note: CASEY has a factory default
outside air temperature setting of 46º
F (8º C) that can be used instead of an
external air temperature sensor in
moderate climates. But when
maximum accuracy is desired, install
the external air temperature sensor to
override the 46º F (8º C) default
setting.
CONT: 1234
YES OR NO
CONTRACTOR CODE
____
Note: Contact SmartWay toll free at
(866) 743-5663 if you don’t know your
Contractor Code.
CONFIGURING INSTRUCTIONS
Configuring the CASEY
8. The Tech Pad displays Customer
Code. Enter any number up to
eight digits to identify your
customer. This could be the
customer’s phone number or
account number. Press YES.
To configure CASEY to a specific
HVAC system, you must have:
• A Tech Pad
• Your Assigned Contractor ID #
To configure the CASEY:
1. Check all CASEY wiring
connections
2. Turn on the power to the HVAC
system
3. Set the FAN switch at the thermostat to the ON position.
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3
SW0711-1
CUST: 12345678
YES OR NO
CUSTOMER CODE
_________
4
CASEY V2.0- TECHNICIAN’S INSTALLATION & SET-UP GUIDE
9. The Tech Pad displays Access
Code. The display should always
show 0. Press YES.
RETURN AIR
RH = 52%
ACCESS: 0
YES OR NO
Note: CASEY is shipped from the factory
with standard calibration for gas heat with
air conditioning
ACCESS CODE
____
12. If you have a gas heat system, it is
already calibrated and you can just
press ENTER to skip to step 19.
▪ If you need to change the type of
heating system to electric heat or
heat pump (or you just want to
reset CASEY to the original
factory settings, continue the
following steps).
▪ Press the RESTORE/INITIALIZE
key and then press the 2 key (2
RESTORE).
10. The Tech Pad displays “Status OK”.
STATUS OK
11. Run the FAN without heating or
cooling for at least five minutes.
▪ Press the SA key to view the
supply air temperature.
Note: Do not press 1 INITIALIZE
SUPPLY AIR
TEMP = 72
▪
1 INITIALIZE
2 RESTORE
Press the RA key to view the
return air temperature.
13. Select the type of heating by pressing
1 for gas, 2 for electric or 3 for heat
pump.
RETURN AIR
TEMP = 73
Note: If the return and supply air
temperatures vary more than 1º F,
adjust the supply sensor as follows:
◊
Press the CAL/6 key and then the
2 key to display 2-TEMP.
◊
Then press the YES key when
“ADJ TEMPERATURE SENSORS
YES” is displayed
◊
At the next screen “RETURN
TEMP = XX UP/DN OR ENTER”,
press the up or down key until the
return air temperature equals the
supply air temperature.
◊
You do not have to adjust the
sensors to your own thermostat
readings. Just make sure the
supply air equals the return air
temperature reading.
▪ Press the R/H key to view the
relative humidity at the return
air.
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HEAT: 1 GAS
2 ELECT 3 HP
14. The Tech Pad displays “Calculating
Electric Set Up” (or “Calculating Gas
Set Up” or “Calculating HP Set Up”)
while CASEY is calculating.
CALCULATING
ELECT SET UP
15. The next screen requests you to
select the type of Air Sensor. Press
“3” (MSV) - CASEY’s Sensor Type.
SENSOR TYPE
1 ESM 3 MSV
CASEY V2.0- TECHNICIAN’S INSTALLATION & SET-UP GUIDE
16. After CASEY completes
calculating, it displays:
21. Manually send your first alert
report to be sure the CASEY is
transmitting correctly (verify that
the modem & phone line are
working) and to register the
CASEY with SmartWay’s Central
Station. To do this:
▪ Make sure the house telephone
is not in use.
▪ Press the CLEAR button (a
small white push-button above
the power slide switch (see
diagram on page 3) for about
ten seconds until both the RED
and GREEN LEDs shine
steady.
▪ If after 20 seconds the RED
LED starts blinking; the house
telephone is in use, or the
Contractor Code # is incorrectly
set as 0, or the telephone line
connection is faulty. To correct
the problem, see Troubleshooting section (page 10).
▪ If after 60-120 seconds:
o The RED LED goes out and
the GREEN LED continues
to shine steady, the report
was successfully sent and
your office should receive a
manually initiated fax report
in approximately 3 minutes.
o The RED LED begins
blinking, CASEY did not
connect to the central
station (usually a busy
external phone line). Try to
send the report again by
pressing the CLEAR button
(the RED LED light will stop
blinking when pressed).
22. Unplug the Tech Pad and fasten
the cover on the CASEY. The
installation is now completed.
RESETTING UNIT
PLEASE WAIT
17. The Tech Pad displays the
software version again, repeats
the contractor number, access
number and customer number
confirmation screens and ends
with STATUS OK screen.
STATUS OK
18. The circuit board Green LED
alarm light should shine steady.
If it blinks on and off:
▪ The CASEY computer and
Tech Pad are communicating
with each other (when keys
are pressed or data sent back
and forth)
▪ The CASEY has detected a
fault condition.
19. Start the HVAC system in the
appropriate mode (cool or heat).
Press the D/T key (upper right
key on the Tech Pad) to view the
temperature difference between
the return and supply air as it
rises in heat or falls in cool.
HEAT D/T 40
CALC D/T 56
Note: If gas heat and HEAT D/T rises
above 80º F (27º C), either increase
the blower one speed higher or
increase the CALC D/T using “Quick
Heat Calibration”, i.e. press the CAL/6
key then the 4 key and then the UP
key until the desired D/T is reached.
Programming Your Telephone
Prefix Number
20 Connect a phone line from the
RJ11 phone jack on the CASEY
circuit board to phone jack or
splice into existing phone line.
Occasionally a phone line system
requires a prefix number dialed to
access an outside line. One or two
digit prefix numbers can be stored in
CASEY:
1. Press 9
2. Press 1 to change the phone prefix
Note: The next step must be
performed to allow CASEY to dial out
to the monitoring central station.
5
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6
CASEY V2.0- TECHNICIAN’S INSTALLATION & SET-UP GUIDE
2. The first screen displays HEAT D/T
tolerance.
1 - CHANGE PREFIX
2 – DIAL TONE CHK
HEAT D/T = +/- 20
UP/DN OR ENTER
3. Press YES or NO to change phone
prefix (NN means no prefix numbers
are required).
(This example shows the standard
factory setting for gas heat. If another
type of heat is programmed, the
standard tolerance is Electric +/- 12º or
Heat Pump +/- 10º.) To change the
tolerance press the UP or DN. When
the desired tolerance setting is reached,
press ENTER.
PHONE PREFIX - NN
OKAY? YES OR NO
4. Press 1 or 2 to select the number of
digits in the prefix number. Press 3 if
no prefix number (for example, if
your prefix no. is 9, press 1)
Note: Tolerance is the number of
degrees the operating temperature split
(D/T) can vary (+/-) from the calibrated
D/T before sending an alert report.
# PREFIX DIGITS
1,2 OR 3 = NONE
3. The next screen displays COOL D/T
tolerance.
5. Enter the first digit of the prefix
number and press ENTER.
COOL D/T = +/- 8
UP/DN OR ENTER
ENTER IN FIRST
DIGIT _
The standard factory settings for Cool
tolerance is +/- 6º for all types of heating
systems. To change the tolerance
setting, press UP or DN. When the
desired tolerance is reached, press
ENTER.
6. If you pressed 2 (digits) in step 3,
you will be asked to enter the second
digit of the prefix number and then
press ENTER.
ENTER IN SECOND
DIGIT _
4. The next screen displays SYSTEM
DELAY (time).
7. Press YES to accept the phone
prefix number. (The example shows
number 9 was entered as the prefix
number. The N after 9 indicates no
nd
2 digit number.)
SYSTEM DELAY = 20
UP/DN OR ENTER
The standard factory setting for the
System Delay Time is 20 minutes for all
types of systems. This is the length of
time a fault must exist before an alert
report is sent. During this time, the
CASEY checks and rechecks to
determine if the fault continues to exist.
To change the System Delay Time
press the UP or DN key. When the
desired System Delay Time is reached,
press ENTER
PHONE PREFIX - 9N
OKAY? YES OR NO
Entering Custom Setup
The setup values entered at the factory
(see page 11, “Standard Calibration &
Set Up Values Table”) usually work fine
and do not need customizing. But, if
necessary, adjust the values as follows:
1. Press SET UP
SW0711-1
Note: Be sure the System Delay Time
is set to the time it takes for the
system to stabilize after startup.
7
CASEY V2.0- TECHNICIAN’S INSTALLATION & SET-UP GUIDE
SmartWay recommends that this
setting be at least 12 minutes.
the Maximum Temperature Alarm
press the UP or DN key. When the
preferred temperature is reached
press ENTER.
The following fault conditions have
factory set delay times that are not
overridden by the System Delay Time.
These alert reports are sent after the
following number of minutes:
◊
Min and Max Temperature Alert
Reports: System Delay Time is
five (5) minutes.
◊
F2 Alert Reports: System Delay
Time is three (3) minutes.
Note: If the return air runs outside the
conditioned space (such as an attic or
roof-top unit) you may need to adjust
the MIN and MAX settings accordingly.
Understanding the CASEY Alert
Report
CASEY provides HVAC system
performance monitoring and, when
substandard performance detected,
alert reporting. Alert reports are sent
to the contractor by fax, email and web
posting. Each month a check-in report
is automatically sent to confirm the
CASEY is operating correctly. Also a
report can be manually transmitted by
pressing the CLEAR button on the
circuit board or by the customer
pressing the Customer Alert Switch
(an optional accessory).
5. The next screen displays the
Minimum Temperature Alarm.
MIN TEMP = 40
UP/DN OR ENTER
If the air temperature surrounding the
Return Air Sensor drops below this
number, an alert report is sent (even
when the HVAC system is turned off or
the thermostat malfunctions). The
standard factory setting for the
Minimum Temperature Alarm is 40º F
for all types of systems. To change
the Minimum Temperature Alarm
press the UP or DN key. When the
desired temperature is reached press
ENTER.
A sample CASEY alert report is on the
next page. An explanation of each
numbered section referenced in the
sample alert report follows:
1. Date and time transmitted: The
local date and time the Alert Report
was sent to you.
Note: In colder climates it may be
preferable to adjust the Minimum
Temperature Alarm above 40º F to
allow extra response time. But before
changing we may want to ask your
customer what setback temperature
they use at night or while away from
home.
2. Contact name: Your (contractor)
company name.
3. Your customer number: Any eightdigit customer number desired.
Some contractors use the
customer’s seven-digit phone
th
number with the 8 digit used to
represent the unit being reported
(customers with more than one
HVAC system with two or more
CASEY units reporting).
6. The next screen displays the
Maximum Temperature Alarm.
MAX TEMP = 120
UP/DN OR ENTER
4. Problem being reported: The
type of problem reported (Cool D/T,
Heat D/T, F1 Switch, F2 Switch,
Power Off, Power On, High Temp
Alarm, Low Temp Alarm, Call
Manually Initiated or Monthly
Check-in).
If the air temperature at the Return Air
Sensor rises above this number an
alert report is sent (even when the
HVAC system is turned off or
thermostat malfunctions).
The standard factory setting for the
Minimum Temperature Alarm is 120º
for all types of systems. To change
SW0711-1
8
CASEY V2.0- TECHNICIAN’S INSTALLATION & SET-UP GUIDE
*******************************************************************
SMARTWAY ALERT REPORT FROM YOUR CUSTOMER
*******************************************************************
DATE: 09-15-00 EASTERN STANDARD TIME: 21:34:53
1
2
ATTN: ACME A/C & HEATING CO
3
YOUR CUSTOMER NUMBER:
12345678
4
IS REPORTING
A COOL D/T PROBLEM
5
THIS UNIT WAS ACTIVATED OR RENEWED ON 11/1999
6
READINGS AT THE TIME THIS REPORT WAS FAXED WERE:
Current Return Air Temperature………..……….: 85
7
Current Supply Air Temperature……………...…: 75
8
Current Relative Humidity %……………………..: 34
9
System Delay Setting………………………..……: 20
10
External Temperature……………………….…….: 90
11
-Hours of Operation12
Cooling……………………………………………....: 19
Heating……………………………………………....: 14
Fan…………………………………………………...: 33
Unit is set to COOL
13
14
The CASEY calculated D/T is: 23
15
This unit at the time of fault had a D/T of: 10
16
Low D/T is usually caused by a LOW FREON LEVEL
Other causes may be:
17
Dirty condenser
Bad compressor valves
High head pressure
Partial restriction on liquid side
Bad time delay, relay or relay set too long
18 **** ATTENTION-YOUR FAX DID NOT RESPOND, REPORT IS DELAYED***
CASEY V2.0- TECHNICIAN’S INSTALLATION & SET-UP GUIDE
TROUBLESHOOTING
Problem
Light and Power Problems
LED light dims or does not light
when power is applied.
Telephone and Fax Problems
No report after manually initiating
a call (pressing CLEAR button)
Cause
Solution
Short in cable.
Check all cables with a tester or
disconnect all and see if light comes on.
If so, replace bad cable.
No 24V power from the
transformer.
Check R and C on CASEY terminal strip
for 24V power.
Customer is using phone line
(RED LED starts blinking after 20
seconds)
Make sure line is not in use: press Clear
button again to attempt resending.
Faulty telephone connection/no
dial tone (RED LED continues
blinking)
Unplug telephone line from CASEY and
test for dial tone with portable phone.
Check telephone line for bad
connections or cable.
Outside (not customer) telephone
line is busy (RED LED shines
steady for 60+ sec then starts
blinking.
Reattempt to manually initiate call by
pressing the CLEAR button.
Incorrect Contractor and/or Access
ID number.
Press ID key and re-enter numbers if
incorrect (note won’t dial out if
Contractor number is 0 (zero).
Telephone line requires a prefix
number to access an outside line.
Press the 9 key and then press the 1
key to enter up prefix number(s).
Your fax machine or email are not
receiving the report.
Check to confirm that your fax machine,
or email is working. If OK, confirm that
SmartWay Central Station has the
correct fax number or email address.
The sensor cable is open or
disconnected
Be sure the cable is seated in the air
sensor jack and the circuit board jack
Sample CASEY Alert Report
5. Activation or renewed date: This is
the (installation) activation date of
CASEY. Monitoring renewal is the
anniversary month each following
year.
9. Current Relative Humidity %:
The% Relative Humidity (a the
Return Air Sensor) when the report
was transmitted.
6. Readings at time this report was
faxed were: The sensor data and
monitor calculation at the time the
alert report was transmitted to
SmartWay Central Station.
R/A key displays: Return Air = 129
10. Delay time before alert transmitted
S/A key displays: Supply Air = 129
11. Actual Outside Temperature (46º if
outdoor sensor not attached)
R/A key displays: Return Air = 31
12. Accumulated HEAT, COOL & FAN
run hours since CASEY installed
Note: CASEY may be delayed in
transmitting the Alert Report if the
customer’s phone is busy or out-ofservice. If so, the D/T, RA, SA & RH
at the time the fault is detected can
differ from that at the time the report
was faxed.
13. Mode (HEAT or COOL) setting
7. & 8. Current Return Air & Supply Air
temperatures when the report was
transmitted
17. Other possible causes of fault
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Sensor Problems
14. What CASEY calculated the
system’s D/T should be
15. The Actual D/T at time of fault
Check the sensor cable with the tester
and replace if needed.
The sensor cable is shorted.
Check the sensor cable with the tester
and replace if needed.
The sensor is in a duct “dead
zone”/
Reposition sensor. Make sure the S/A
sensor is 18 in. from the coil.
The sensors are reversed.
Reinstall the return and supply air
sensors into the correct ducts.
CASEY is trying to send an alert
report
Wait until the report is sent or briefly
press the Clear button to remove fault.
CASEY is locked up
Unplug the Tech Pad, turn the power
slide switch off and then on.
S/A key displays: Supply Air = 31
R/A or S/A keys display correct
temperature but do not change
when system is on.
R/A or S/A temperature readings
are reversed. R/H reading is
incorrect
Tech Pad Problems
Keys do not enter information
16. Most probable cause of fault
18. This Alert Report was delayed
9
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CASEY V2.0- TECHNICIAN’S INSTALLATION & SET-UP GUIDE
CASEY V2.0- TECHNICIAN’S INSTALLATION & SET-UP GUIDE
ELECTRIC HEAT CHART & FORMULAS
STANDARD CALIBRATION AND SET UP VALUES
CASEYs are shipped from the factory with Standard Calibration and Set Up values (shown in
chart below) that are usually right for most systems.
This is a useful chart for determining if an electric heat system is operating at the correct
airflow (CFM), heat strips (KW) and temperature rise (D/T).
Calibration is changed by pressing the CAL/6 key and then the 1 key (1-CALIB) for “custom”
calibration; or the “4” key (4-D/T) for manually changing the heat D/T up or down.
If you know any two of these (CFM, KW or D/T) you can look up in the chart (or calculate
with the formula) what the other one should be. For example, if you know the system has
1200 CFM and 10KW, then the temperature rise should be 27º.
Settings are changed by pressing the ID key and pressing the UP or DN keys for any of the
following:
▪
Tolerance Range: The number of degrees the temperature can vary (above or below) the
Calibrated D/T before an alert report is sent.
▪
Trip Range: The actual minimum & maximum D/Ts permitted. When the system's actual
D/T goes above the maximum D/T (or below the minimum D/T) an alert report is sent.
▪
Time Delay Settings: The time a fault must exist before an alert report is sent. Should
usually be at least the time it takes the HVAC system to stabilize.
▪
Temperature Alarm Settings: The minimum and maximum air temperature permitted at
the return air sensor. If either is exceeded, an alert report is sent.
Chart: Standard Calibration Settings and Standard Set Up Values
Standard
Calibration
D/T
(Temperature
Rise/Fall)
Standard
Calibration
Tolerance
Range
(+ or -)
Trip
Range
Low
Gas Heat
55º
20º
35º
75º
(with) A/C (at 50% RH)
18º
6º
12º
24º
Type of System
Trip
Range
High
Electric Heat
30º
12º
18º
42º
(with) A/C (at 50% RH)
18º
6º
12º
24º
Heat Pump Only
24º
10º
14º
34º
Cool Mode (at 50% RH)
18º
6º
12º
24º
24º
10º
14º
34º
10º
41º-45º
61º-65º
HP w/Electric BackUp
1st Stage
2nd Stage
1st & 2nd Stage
Combined
Time
Delay
Setting
20
Mins
20
Mins
Temp
Alarm
Setting
MIN
Temp
Alarm
Setting
MAX
40º
120º
40º
120º
20
Mins
40º
120º
20
Mins
40º
120º
30º
51º-55º
ELECTRIC HEAT CHART
Temperature Rise Verses Air Flow in CFM (Cubic Feet Per Minute)
CFM
800
1200
1600
2000
KW
5
10
15
20
25
1st Stage Only
24º
10º
14º
34º
2nd Stage Only
55º
10º
45º
65º
20
Mins
40º
120º
Note: Only One Stage
Operates at a Time
For detailed information on why and how to change the factory or standard calibration and set
up values please see the complete “CASEY V2.0 Technical Manual”.
8º
16º
24º
32º
40º
GAS HEAT CHART & FORMULAS
This chart is for determining if a gas heat system is operating at the correct CFM, BTU & D/T.
Cooling CFM
Heating CFM
800
720
GAS HEAT CHART
1200
1080
1600
1440
2000
1800
Note: Shaded boxes below are within the factory set D/T range of 55º ( ± 20º )
80% EFFICIENT FURNACE
BTU Input
80,000
80,000
80,000
80,000
Temp Rise-D/T
82º
55º
41º
32º
BTU Input
100,000
100,000
100,000
100,000
Temp Rise-D/T
102º
68º
51º
41º
BTU Input
120,000
120,000
120,000
120,000
Temp Rise-D/T
123º
82º
61º
49º
Temp Rise-D/T
BTU Input
Temp Rise-D/T
BTU Input
Temp Rise-D/T
Note: On Heat Pump systems, the default 24º-heat rise is based on 46º outside air temperature. This heat D/T will
change as the outdoor temperature changes.
D/T (Temperature Rise in Degrees Fahrenheit)
13º
10º
27º
20º
40º
30º
53º
40º
67º
50º
ELECTRIC HEAT FORMULAS
D/T = (KW x 3192) / CFM
KW = (D/T x CFM) / 3193
CFM = (KW x 3193) / D/T
1 KW Produces 3413 BTU Heat
BTU Input
HP w/Gas (Dual Fuel)
20º
40º
60º
80º
100º
90% EFFICIENT FURNACE
70,000
70,000
70,000
81º
54º
41º
90,000
90,000
90,000
104º
69º
52º
110,000
110,000
110,000
127º
85º
64º
70,000
32º
90,000
42º
110,000
51º
GAS HEAT FORMULAS
D/T = BTU Input x Eff %) / (CFM x 1.08)
BTU Input =(D/T / Eff %) x (CFM x 1.08)
CFM =(BTU Input x Eff %) / (D/T x 1.08)
For technical assistance call SmartWay Technical Support toll free
Monday-Friday 8am-5pm CST at phone # (866) 743-5663
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