Munters SS5027 Owner's manual

Munters SS5027 Owner's manual
Tunnel Ventilation Controller
SS 5027
USER'S MANUAL
6
66
Second Functions
Push to Set
ROOMTEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
START SETUP
TEMP. DELAYS
TIMER TEMP. RANGE
START TEMP. STAGE 2
OPEN / CLOSETEMP.
TIMER
SETTINGS
CURTAINS
$(527(&+ ,1&0DVRQ0,86$
6
66
$(527(&+,1&0DVRQ0,86$
Aerotech, Inc.
4215 Legion Dr.
Mason, MI
48854-1036 USA
Ph. (517) 676-7070 Fax (517) 676-7078
FORM: QM 1324
March 2003
TABLE OF CONTENTS
Page
PRECAUTIONS ............................................................... 3
FEATURES ..................................................................... 4
LOCATION OF THE CONTROLS ........................................ 6
Controller Status Leds ............................................................... 7
Internal Switches ...................................................................... 7
INSTALLATION ............................................................... 8
Mounting Instructions ................................................................ 8
Connections ............................................................................. 8
Temperature Probes .................................................................. 9
CHANGING THE PARAMETER SETTINGS ........................ 12
The Meaning of a Flashing Display .............................................. 12
Locking the Parameter Settings ................................................. 12
TEMPERATURE SETTINGS ............................................. 13
Temperature Units .................................................................. 13
Viewing Temperatures ............................................................. 13
Temperature Set Point ............................................................. 16
Temperature Curve ................................................................. 17
VENTILATION SETTINGS ............................................... 21
Cooling Operation ................................................................... 21
Minimum Ventilation Cycle ....................................................... 22
Ramping Option ...................................................................... 23
Minimum Ventilation compensation ............................................ 25
Ventilation Settings ................................................................. 28
NATURAL VENTILATION ............................................... 30
Principle of Operation .............................................................. 30
Settings ................................................................................ 32
TUNNEL VENTILATION .................................................. 35
Curtain Setup ......................................................................... 35
Settings ................................................................................ 38
Mist Cooling .......................................................................... 40
HEATER SETTINGS ....................................................... 43
ALARM SETTINGS ........................................................ 48
TROUBLESHOOTING GUIDE ........................................... 50
TECHNICAL SPECIFICATIONS ........................................ 54
2
QM 1324.rev.00
PRECAUTIONS
We strongly recommend installing supplementary natural
ventilation, a failure alarm system as well as a back-up thermostat
on at least one cooling stage (refer to the wiring diagram enclosed
with this user's manual to connect the thermostat).
Although fuses at the input and outputs of the controller protect
its circuits in case of an overload or overvoltage, we recommend
installing an additional protection device on the supply circuit as
well as an external relay on all ON-OFF stages to prolong the life
of the controller.
The room temperature where the controller is located MUST
ALWAYS REMAIN BETWEEN 32°F AND 104°F (0°C TO 40°C).
To avoid exposing the controller to harmful gases or excessive
humidity, it is preferable to install it in a corridor.
DO NOT SPRAY WATER ON THE CONTROLLER
FOR CUSTOMER USE
Enter below the serial number located
on the side of the controller and retain this information for future reference.
Model number:
Serial number:
Date installed:
SS 5027
_____________
_____________
QM 1324.rev.00
3
FEATURES
The SS 5027 is an electronic device used for environmental control in
livestock buildings. It allows the user to maintain a specified target temperature by controlling the operation of ventilation and heating equipment.
Two stages of constant-speed cooling fans, as well as curtains, foggers,
heaters and up to 6 tunnel stages can be connected to the controller.
The main features of the SS 5027 are as follows:
THREE-DIGIT DISPLAY
A three-digit display provides a high level of accuracy, allowing the user to
specify a temperature to within one tenth of a degree (in Fahrenheit or
Celsius units).
PILOT LIGHTS
Pilot lights indicating the state of outputs allow the user to monitor the
operation of the system without having to enter the building.
MINIMUM VENTILATION CYCLE
When ventilation is not required for cooling, the first stage fans can be
operated either continuously or intermittently to reduce the level of humidity
and supply oxygen to the room.
RAMPING OPTION
The ramping option periodically calculates an optimal timer cycle to smooth
the transition between minimum ventilation and full operation of stage 1
fans.
TEMPERATURE CURVE
The controller can be set to automatically change the temperature set
point over a given period of time in accordance with the user's requirements
by specifying a temperature curve with up to six different points.
ZONED OR STAGED HEATERS
FOUR INDEPENDENT TEMPERATURE PROBE INPUTS
Up to four temperature probes can be connected to the controller in order
to obtain a more accurate reading of the average room temperature and a
faster reaction time.
4
QM 1324.rev.00
SS 5027
OUTSIDE TEMPERATURE PROBE
Used to prevent curtains opening when the outside temperature is too low
or activate tunnel mode when outside temperature is too high.
OVERLOAD AND OVERVOLTAGE PROTECTION
Fuses are installed at the input and outputs of the controller to protect its
circuitry in the case of an overload or overvoltage.
COMPUTER CONTROL
The controller can be connected to a computer, thus making it possible to
centralize the management of information and diversify control strategies.
CONTROL OF AIR INLET MOVEMENT USING THE SB 2000
If the SS 5027 is used in combination with a SB 2000 controller, the
movement of the air inlets can be coordinated with the operation of the
stage 1 and 2 fans using a potentiometer located on the curtain machine or
baffle actuator. This allows the air inlets to be adjusted correctly, without
the influence of uncontrollable factors such as wind or air from adjoining
rooms. When tunnel ventilation is being used, the SB 2000 closes the air
inlets.
NOTE: After programming the reference points for stage 2, press and hold
the push-button for two seconds to end the programming sequence.
HIGH/LOW TEMPERATURE ALARM OUTPUT
QM 1324.rev.00
5
LOCATION OF THE CONTROLS
6
TIMER
SETTINGS
Second Functions
Push to Set
STAGE 1
CURTAINS
OPEN / CLOSE TEMP.
START TEMP. STAGE 2
TIMER TEMP. RANGE
ON TIME / CYCLE
SET POINT / TEMP. CURVE
ROOM TEMPERATURE / PROBE TEMP.
OFF
TEMP.
START
TEMP.
START SETUP
TEMP. DELAYS
66
$(527(&+,1&0DVRQ0,86$
QM 1324.rev.00
6
SS 5027
CONTROLLER STATUS LEDS
LED
M E AN I N G
ST AG ES 1 - 2
F L ASHES W HEN STAG E 1 FANS ARE O N. T URNS O N W HEN STAG E 2
FANS ARE O N.
ENDWAL L
F L ASHES W HEN ENDWAL L CURTAI NS ARE CL O SI NG . T URNS O N
W HEN ENDWAL L CURTAI NS ARE O PENI NG .
SIDEWAL L
F L ASHES W HEN SI DEWAL L CURTAI NS ARE CL O SI NG . T URNS O N
W HEN SI DEWAL L CURTAI NS ARE O PENI NG .
ST AG ES 4 - 5
F L ASHES W HEN STAG E 4 FANS ARE O N. T URNS O N W HEN STAG E 5
FANS ARE O N.
ST AG ES 6 - 7
F L ASHES W HEN STAG E 6 FANS ARE O N. T URNS O N W HEN STAG E 7
FANS ARE O N.
ST AG ES 8 - 9
F L ASHES W HEN O NE STAG E I S O N. T URNS O N W HEN T W O STAG ES
ARE O N.
To CURVE
TURNS O N W HEN T HE T EM PERAT URE CURVE I S ACT I VAT ED.
F L ASHES W HEN T HE M I NI M UM VENT I L AT I O N SPEED CURVE I S
AL SO O N.
D E F.
PROBE/
AL ARM
F L ASHES W HEN A DEF ECT I VE PRO BE I S DET ECT ED.
TURNS O N W HEN AN AL ARM I S DET ECT ED.
INTERNAL SWITCHES
The internal switches are located on the inside of the front cover. When
the controller is shipped from the factory, all the switches are set to OFF.
ON
1
2
3
4
5
6
7
8
9 10 11 12
#
OFF
ON
1
UNLOC KED PARAMETERS
LOC KED PARAMETERS
2
FAHRENHEIT D EGREES
C ELSIUS D EGREES
3
STAGE 8 AND 9
C OOLING
HEATER STAGES
USED
4
STAGE 9 HEATING
ONLY
STAGE 8 AND 9
HEATING
5
ZONED HEATING
STAGE HEATING
6
STAGE 3 ABSENT/ STAGE
7 PRESENT
STAGE 3 PRESENT/ STAGE 7
ABSENT
7
STAGED MIST STAGE
FLOATING MIST STAGE
8
STAGE 1 WITHOUT
RAMPING
STAGE 1 WITH RAMPING
9
MIN. VENTILATION
C OMPENSATION
D EAC TIVATED
MIN. VENTILATION
C OMPENSATION AC TIVATED
10
RESERVED
11
RESERVED
12
RESERVED
QM 1324.rev.00
7
INSTALLATION
MOUNTING INSTRUCTIONS
Open the latch and lift the cover. Remove the black caps located on each
of the four mounting holes. Mount the enclosure on the wall using four
screws. Be sure the electrical knockouts are at the bottom of the enclosure in order to prevent water from entering the controller. Insert the
screws in the mounting holes and tighten. Fasten the four black caps
provided with the controller onto the four mounting holes. The enclosure
must be mounted in a location that will allow the cover to be completely
opened right up against the wall.
CONNECTIONS
To connect the controller, refer to the wiring diagram enclosed with this
user's manual.
Set the voltage switch to the appropriate voltage.
Use the electrical knockouts provided at the bottom of the enclosure. Do not make additional holes in the enclosure, particularly on
the top of the enclosure when using a SL 1400 communication
board.
For the heating stages, it may be necessary to install a transformer
in order to supply the appropriate voltage to the heating unit.
!
WARNING
8
ALL WIRING MUST BE DONE BY AN AUTHORIZED
ELECTRICIAN AND MUST COMPLY WITH APPLICABLE
CODES, LAWS AND REGULATIONS. BE SURE POWER IS
OFF BEFORE DOING ANY WIRING TO AVOID
ELECTRICAL SHOCKS AND EQUIPMENT DAMAGE.
QM 1324.rev.00
SS 5027
TEMPERATURE PROBES
1
Connecting the Probes
The controller is supplied with one room probe connected to input # 1 and
one outside probe connected to input # 5. Three additional probes can be
connected to inputs # 2, # 3 and # 4. If zoned heating is used, Heater A
uses probe 1 and Heater B uses probe 2. If cascading heating is used, the
average temperature from selected probes # 1, 2, 3 and 4 is used.
CAUTION: Probes operate at low voltage and are isolated from the supply.
Be sure that probe cables remain insulated from all high voltage sources.
In particular, do not route the probe cables through the same electrical
knockout as other cables. Do not connect the shield from the probe cable
to an input or a ground.
2
Extending the Probes
Each probe can be extended up to 500 feet (150 meters). To extend a
probe:
Use a shielded cable of outside diameter between 0.245 and 0.260
in (6.22 and 6.60 mm) (the cable dimensions should not be under 18
AWG) to ensure the cable entry is liquid tight. Do not ground the
shielding.
It is preferable to solder the cable joint to ensure a proper contact
between the two cables.
CAUTION: Do not run probe cables next to other power cables. When
crossing over other cables, cross at 90°.
QM 1324.rev.00
9
SS 5027
3
Installing the Outside Probe
Run the outside probe cable on the north side of the building, 6 ft (2
m) below the eave, inside a pale colored conduit.
Be sure the probe cable is isolated from sheet metal or any other
conductive material.
Be sure no cable joint is exposed to air or water.
4
Defective Probes
Room Probes: If a defective probe is detected, the Defective Probe Pilot
Light turns on. The room temperature shown on the display is then the
average temperature measured by the probes in working condition. The
controller will operate according to this temperature.
To identify the defective probe:
Set the selection knob to ROOM TEMPERATURE . The room temperature is displayed.
Press the push-button. If the
probe connected to input # 1 and
supplied with the controller is not
defective, the letters"PR1" are
displayed, alternating with the
temperature measured by the
probe. If the probe is defective,
the letters "PR1" are displayed,
alternating with the letter "P".
10 QM 1324.rev.00
ROOM TEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
START SETUP
TEMP. DELAYS
TIMER TEMP. RANGE
START TEMP. STAGE 2
OPEN / CLOSE TEMP.
TIMER
CURTAINS
SS 5027
For each additional probe connected to the controller:
Press the push-button once again. If the probe is not defective, the
letters "PR#" (where # is the number of the input to which the probe
is connected) are displayed, alternating with the temperature
measured by the probe. If the probe is defective, the letters "PR#"
are displayed, alternating with the letter "P".
Outside Probe: If the outside probe
is defective, the display shows the letter "P" when the parameter selection
knob is set to OUTSIDE TEMP.
ROOM TEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
TIMER TEMP. RANGE
START TEMP. STAGE 2
START SETUP
TEMP. DELAYS
OPEN / CLOSE TEMP.
TIMER
CURTAINS
QM 1324.rev.00 11
CHANGING THE PARAMETER SETTINGS
THE MEANING OF A FLASHING DISPLAY
The display will flash in certain cases
and not in others. The flashing indicates that the value shown can be adjusted. A value that is not flashing
cannot be adjusted.
LOCKING THE PARAMETER SETTINGS
The parameter settings can be locked to prevent accidentally modifying
them. When the settings are locked, only the temperature set point and
the Stage 1 minimum ventilation speed can be modified (as long as the
temperature curve and the minimum ventilation speed curve are deactivated respectively).
To lock the parameter settings:
Set internal switch # 1 to ON. The Locked Parameter Pilot Light
turns on.
To unlock the parameter settings:
Set internal switch # 1 to OFF. The Locked Parameter Pilot Light
turns off.
12 QM 1324.rev.00
TEMPERATURE SETTINGS
TEMPERATURE UNITS
Temperatures can be displayed in either Celsius or Fahrenheit units
Set internal switch # 2 to the desired position:
ON
• ON to display temperatures in Celsius units.
• OFF to display temperatures in Fahrenheit units.
2
VIEWING TEMPERATURES
The readout can display values from
-40.0oF to 120oF ( -40.0oC to 48.9oC).
When the temperature drops below
-9.9 degrees, the negative sign is
displayed separately, alternating with
the numerical value.
1
ROOM TEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
TIMER TEMP. RANGE
START TEMP. STAGE 2
START SETUP
TEMP. DELAYS
OPEN / CLOSE TEMP.
TIMER
CURTAINS
Viewing the Room Temperature
The room temperature is the average value of all temperatures measured
by activated probes in proper operating condition.
Set the selection knob to ROOM TEMPERATURE / PROBE TEMP.
The room temperature is displayed.
2
Viewing Probe Temperatures
The controller can display probe temperatures individually. Probes can also
be turned on or off to control the temperature in different parts of the
building.
QM 1324.rev.00 13
SS 5027
Set selection knob to ROOM TEMPERATURE / PROBE TEMP. The
average room temperature is displayed.
Press the push-button. The temperature reading from probe 1 is
displayed, alternating with the letters «Pr 1» and the on/off state of
probe 1.
For each additional probe, press the push-button. The temperature
reading from probe x is displayed, alternating with the letters «Pr x»
and the on/off state of the probe, etc.
Notes:
(i) The display returns to the average room temperature after one
minute.
(ii) At least one probe must be activated at all times. If only one probe
remains active, the controller will lock the on/off switch for that probe.
(iii) Initially, only probe one is activated.
3
Viewing the Outside Temperature
Set selection knob to OUTSIDE TEMP. / SETTINGS. The outside
temperature is displayed.
4
Viewing Minimum / Maximum Temperatures
The minimum and maximum temperatures are the lowest and highest temperature values recorded since the last reset. Maximum and minimum
temperatures values are recorded for the average room temperature as
well as for individual probe temperatures.
Set the selection knob to ROOM
TEMPERATURE / PROBE TEMP.
The room temperature is displayed.
Turn the adjustment knob
clockwise by one notch. The
minimum temperature flashes on
14 QM 1324.rev.00
ROOM TEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
START SETUP
TEMP. DELAYS
TIMER TEMP. RANGE
START TEMP. STAGE 2
OPEN / CLOSE TEMP.
TIMER
CURTAINS
SS 5027
the display, alternating with the
letters «Lo».
CURRENT
MAXIMUM
MINIMUM
CURRENT
MINIMUM
MAXIMUM
CURRENT
Turn the adjustment knob clockwise
one notch further. The maximum
temperature flashes on the display,
alternating with the letters «Hi».
Turn the adjustment knob clockwise a third notch. The room temperature is displayed again.
For each individual probe, press the push-button. The temperature
reading from probe x is displayed, alternating with the letters «Pr x»
and the on/off state of the probe.
Turn the adjustment knob clockwise by one notch. The minimum
temperature is displayed, alternating with the letters «Lo».
Turn the adjustment knob clockwise one notch further. The maximum temperature is displayed, alternating with the letters «Hi».
Turn the adjustment knob clockwise a third notch. The probe
temperature is displayed again.
Press the push-button to access the other probes, etc.
NOTE: If you let the display flash for more than 10 seconds, the controller
resets the minimum and maximum temperatures currently in memory (the
display stops flashing to indicate that the reset has been done).
QM 1324.rev.00 15
SS 5027
TEMPERATURE SET POINT
ROOM TEMPERATURE / PROBE TEMP.
The temperature set point is the target room temperature. It can be adjusted between -40.0°F and 99.9°F
(-40.0°C and 37.7°C).
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
START SETUP
TEMP. DELAYS
TIMER TEMP. RANGE
START TEMP. STAGE 2
OPEN / CLOSE TEMP.
TIMER
CURTAINS
Adjusting the Temperature Set Point
Set the selection knob to SET POINT / TEMP. CURVE. The current
set point flashes on the display.
Use the adjustment knob to adjust the set point to the desired value.
NOTE: The temperature set point can be adjusted only if the temperature
curve is deactivated (see following section).
16 QM 1324.rev.00
SS 5027
TEMPERATURE CURVE
The user can define a temperature curve to adjust the set point automatically over a given time period.
○
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d35
○
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d50
d70
○
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d25
○
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○
○
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d4
○
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To 1
To2
To3
To4
To 5
To6
○
Temperature
d80
Days
A curve is defined using six points. Each point specifies a day number and
a set point for that day. Once the points of the curve are defined, the
curve must be activated. The controller will change the temperature set
point every hour in a linear fashion between consecutive points of the
curve. When the last point of the curve is reached, the temperature set
point for that day is maintained until the curve is reactivated.
NOTES :
i) All six points of the curve must be specified. If six points are not needed,
repeat the last temperature value for each unnecessary point.
ii) Certain restrictions apply to reduce the risk of errors:
- The highest possible day number is 99.
- Decreasing day numbers are not allowed.
- Increasing temperatures are not allowed.
- The temperature variation cannot exceed 3°F (1.6°C) per day.
QM 1324.rev.00 17
SS 5027
1
Specifying the Curve
ROOM TEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
Set the selection knob to SET
POINT / TEMP. CURVE. The
current temperature set point
flashes on the display.
OFF
TEMP.
START
TEMP.
TIMER TEMP. RANGE
START TEMP. STAGE 2
OPEN / CLOSE TEMP.
START SETUP
TEMP. DELAYS
TIMER
CURTAINS
Press the push-button. The word OFF is displayed indicating that the
temperature curve is deactivated. If this is not the case, see below
to deactivate the curve.
Repeat the following steps for each of the six points:
Press the push-button once again. The letter "d" followed by a day
number flashes on the display.
Using the adjustment knob, set the day number to the desired value.
Press the push-button once again. The current temperature set
point flashes on the display.
Using the adjustment knob, adjust the set point to the desired value.
Once the six points of the curve have been specified, activate the curve as
explained below.
NOTE: Make sure the temperature curve is deactivated before specifying
new points (see below).
2
Activating the Temperature Curve
If you have just finished specifying the points on the curve:
Press the push-button once again. The word OFF flashes on the
display.
18 QM 1324.rev.00
SS 5027
Turn the adjustment knob clockwise one notch and leave in this
position for at least 10 seconds. The word ON flashes on the display
and after 10 seconds, the Temperature Curve Pilot Light turns on
indicating that the temperature curve is now activated.
Set the selection knob to ROOM TEMPERATURE.
If you have previously defined the points on the curve:
Set the selection knob to SET POINT / TEMP. CURVE. The current
value of the temperature set point flashes on the display.
Press the push-button. The word OFF flashes on the display.
Press the push-button to display the points of the curve currently
defined until the word OFF appears (thirteen clicks).
Turn the adjustment knob clockwise one notch and leave in this
position for at least 10 seconds. The word ON flashes on the display
and after 10 seconds, the Temperature Curve Pilot Light turns on
indicating that the temperature curve is now activated.
Set the selection knob to ROOM TEMPERATURE.
3
Viewing Current Set Point and Day Number
When the temperature curve is activated, the current temperature set
point and day number can be viewed at any time. The current day number
can also be adjusted in order to move forward or backward on the temperature curve.
Set the selection knob to SET POINT / TEMP. CURVE. The current
temperature set point flashes on the display.
Press the push-button. The current day number is displayed.
Use the adjustment knob to set the day number to the desired value.
QM 1324.rev.00 19
SS 5027
4
Deactivating the Temperature Curve
Set the selection knob to SET POINT / TEMP. CURVE. The current
temperature set point flashes on the display.
Press the push-button to display the points of the curve actually
defined until the word ON appears (fourteen clicks).
Turn the adjustment knob counterclockwise one notch and leave in
this position for at least 10 seconds. The word OFF flashes on the
display and after 10 seconds, the Temperature Curve Pilot Light
turns off indicating that the temperature curve is now deactivated.
Set the selection knob to ROOM TEMPERATURE.
20 QM 1324.rev.00
VENTILATION SETTINGS
COOLING OPERATION
The SS 5027 controls two stages of constant-speed fans (Stages 1-2)
when tunnel ventilation is not in effect. An additional constant-speed stage
can be added (Stage 3) by setting internal switch #6 to ON (when this is
done, Stage 7 is no longer available for tunnel ventilation). The diagram
below uses sample values to illustrate the operation of the cooling fans.
Ventilation
Stage 1 fans
start running
Stage 2 fans
stop running
Stage 3
Stage 2
1.5oF
Stage 1 fans
stop running
1.5oF
Stage 1
Min.
Vent.
Stage 3 fans Stage 3 fans
Stage 2 fans stop running start running
start running
1.5oF
Timer Temp.
Range
Stage 1
Set Point
Temp.
Stage 2
Start Temp
Stage 3
Start Temp
If the room temperature increases:
•
When room temperature < Set Point + Timer Temp. Range, stage 1
fans run according to the minimum ventilation cycle.
•
At Set Point + Timer Temp. Range: stage 1 fans run continuously.
•
At Stage 2 Starting Temp: stage 2 fans start running.
•
At Stage 3 Starting Temp: stage 3 fans start running.
If the room temperature decreases:
•
At Stage 3 Starting Temp - 1.5oF: stage 3 fans return to a stop.
•
At Stage 2 Starting Temp - 1.5oF: stage 2 fans return to a stop.
•
At Set Point + Timer Temp. Range - 1.5oF: Stage 1 fans start to
run according to the minimum ventilation cycle.
QM 1324.rev.00 21
SS 5027
MINIMUM VENTILATION CYCLE
When the room temperature is below the set point, the Stage 1 fans operate
according to the minimum ventilation cycle. Running the fans even though
ventilation is not required for a cooling purpose is useful to reduce humidity
levels and supply oxygen to the room. It also prevents the fans from freezing
in winter.
TIME ON
STAGE 1
STAGE 1 FANS
OFF
CYCLE TIME
STAGE 1
Stage 1 fans run during time on. The Stage 1 Pilot Light turns on. During
time off, the Stage 1 fans do not run. The Stage 1 Pilot Light turns off.
Minimum Ventilation Cycle Settings
1. To run the fans continuously at minimum speed, set time off to zero
and time on to any value other than zero.
2. To stop the fans, set time on to zero and time off to any value.
3. To run the fans intermittently, set time on to the desired running time
and time off to the desired off time.
22 QM 1324.rev.00
SS 5027
RAMPING OPTION
The ramping option allows the user to smooth the transition between
minimum cycle and full operation of stage 1 fans, i.e. in the temperature
interval between the set point and the set point + timer temp. range.
Option 1: With Ramping
Running
Time
B
C
0.3oF
TIME ON =
CYCLE TIME
A
TIME ON
MINIMUM
CYCLE
TIMER TEMP.
RANGE
SET POINT
Indoor
Temperature
STAGE 1
VENTILATION
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This option is activated by setting internal switch # 8 to ON. At room
temperatures at or below the set point, the controller operates the Stage 1
fans according to the minimum ventilation cycle.
If the room temperature rises above the set point, a new TIME ON is
calculated periodically as the temperature increases to allow a smooth
progression (from point A to point B) up to full operation of the fans when
the timer temp. range is reached.
If the room temperature decreases 0.3oF below the set point + timer
temp. range, the TIME ON value of the minimum ventilation cycle decreases
gradually from a value equal to the total cycle time (point C) to the value
defined by the parameter settings (TIMER STAGE 1 - TIME ON).
QM 1324.rev.00 23
SS 5027
Option 2: Without Ramping
Running
Time
1.5 oF
TIME ON
= CYCLE
TIME
A
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12345678901234567890123456
TIME ON12345678901234567890123456
TIMER TEMP.
RANGE
SET POINT
Indoor Temperature
STAGE 1
MINIMUM
VENTILATION
CYCLE
This option is activated by setting internal switch # 8 to OFF. When the
temperature is less than the set point + timer temp. range, Stage 1 fans
run according to the minimum cycle (see above). When the room temperature reaches point A, stage 1 fans run continuously with no transition.
When the temperature decreases 1.5oF below point A, Stage 1 fans start
operating according to the minimum ventilation cycle.
24 QM 1324.rev.00
SS 5027
MINIMUM VENTILATION COMPENSATION
The SS 5027 has the capability of automatically adjusting the running time
of the minimum ventilation fans as a function of outside temperature. As
the weather gets colder, the on time is decreased gradually to compensate
for the change. This can help reduce costs by reducing the ventilation
when it is not required. A curve is used to calculate the required compensation as a percentage of current on time (see following page). Only the
running time is adjusted; the total cycle time remains unchanged. Note
that internal switch # 9 must be set to ON for this feature to work.
Examples of Ventilation Compensations
Temperature > 50 oF
Compensation = 100%
TIME ON
ON
○
OFF
○
○
○
○
○
CYCLE TIME
Outdoor Temperature = 25 oF
Compensation = 66.5%
ON
OFF
○
○
TIME ON
○
○
○
○
CYCLE TIME
In the first example given on the following page, compensation is not needed
when the outside temperature is greater than 50 oF. The fans operate
according to the full running time defined by the parameter settings. In the
second example, the running time is decreased to 66.5% of full running
time to compensate for the colder outdoor temperature. Cycle time remains
unchanged.
QM 1324.rev.00 25
SS 5027
COMPENSATION CURVE
Minimum Ventilation Compensation
100
Ventilation Compensation (%)
90
80
70
60
50
40
30
20
10
0
-20 -15 -10 -5
0
6
10 15 20 25 30 36 40 45 50 70
Outside Temperature (F)
26 QM 1324.rev.00
SS 5027
1
Adjusting Stage 1 ON Time and Cycle Time
The ON and CYCLE times can be adjusted between 0 and 900
seconds, in increments of 15 seconds.
Set the selection knob to
STAGE 1 — ON TIME/CYCLE.
The current On time for Stage 1
flashes on the display.
Use the adjustment knob to
adjust time on to the desired
value.
ROOM TEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
TIMER TEMP. RANGE
START TEMP. STAGE 2
START SETUP
TEMP. DELAYS
OPEN / CLOSE TEMP.
TIMER
CURTAINS
Press the push-button. The current CYCLE time for Stage 1 flashes
on the display, alternating with the letters "CyC".
Use the adjustment knob to adjust it to the desired value.
QM 1324.rev.00 27
SS 5027
VENTILATION SETTINGS
Adjusting Stage 1 Timer Temperature Range
1
The stage 1 timer temperature range is the temperature difference between
the set point and the temperature at which stage 1 fans run continuously.
When this value is adjusted, all the starting values for consecutive stages
are adjusted by the same amount. The timer temperature range can go
from 0.5°F to 20.0°F (0.3°C and 11.1°C).
Set the selection knob to STAGE
1 — TIMER TEMP. RANGE. The
current timer temperature range
flashes on the display.
Use the adjustment knob to
adjust the range to the desired
value.
2
ROOM TEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
START SETUP
TEMP. DELAYS
TIMER TEMP. RANGE
START TEMP. STAGE 2
OPEN / CLOSE TEMP.
TIMER
CURTAINS
Adjusting the Stage 2 Starting Temperature and
Natural Ventilation Mode Operation
The Stage 2 starting temperature is the temperature at which the Stage 2
fans start running (see the diagram above). The hysteresis is fixed at 1.5oF
and determines when the fans return to a stop. When this value is adjusted,
all the starting values for consecutive stages are adjusted by the same
amount. The difference between the starting temperature and the set point
+ bandwidth (stage 1) can go from 0.5°F to 20.0°F (0.3°C to 11.1°C).
In natural ventilation mode, stage 2 fans can be toggled on or off from the
front panel (see the chapter on natural ventilation).
Set the selection knob to STAGE 2 — START TEMP. The current
starting temperature flashes on the display.
Use the adjustment knob to adjust the temperature to the desired
value.
28 QM 1324.rev.00
SS 5027
Press the push-button to change stage 2 operation in natural ventilation mode. The current setting (on/off) flashes on the display.
Use the adjustment knob to change the setting.
3
Adjusting the Stage 3 Starting Temperature
To use a third cooling stage when tunnel ventilation is not in effect, set
internal switch 6 to ON (Stage 7 is no longer available for tunnel ventilation when this is done). The Stage 3 starting temperature is the temperature at which the Stage 3 fans start running (see the diagram above). The
hysteresis is fixed at 1.5ºF and determines when the fans return to a stop.
When this value is adjusted, all the starting values for consecutive stages
are adjusted by the same amount. The difference between the starting
temperature and the stage 2 starting temperature can go from 0.5°F to
20.0°F (0.3°C to 11.1°C). In natural ventilation mode, if internal switch
#6 is ON, the stage 3 fans can be toggled on or off from the front panel
(see the chapter on natural ventilation).
Set the selection knob to STAGE 2 — START TEMP. The current
stage 2 starting temperature is displayed, alternating with the letters
“ St.2 ”.
Press the push-button twice. The current stage 3 starting temperature is displayed, alternating with the letters “ St.3 ”. Use the
adjustment knob to set the starting temperature to the desired
value.
QM 1324.rev.00 29
NATURAL VENTILATION
PRINCIPLE OF OPERATION
Curtains open
in timer mode
Curtains close
in timer mode
0.3oF
Curtains
0.3oF
OFF
Set Point = 75oF
89 F
79 F
o
o
Room
Temperature
In the example above, when the temperature rises to 89oF, the sidewall
and endwall curtains begin to open and continue to do so until fully open if
the temperature remains above this point. If the temperature falls to 88.7oF,
the curtains stop opening.
The curtains open intermittently according to the time on and time off
settings:
TIME ON
OPEN
STOP OPENING
TIME OFF
The curtain opening cycle uses two time on values that are adjustable by
the user. The initial time on value is used when the curtains open for the
first time after having been at rest. Once the first time on/ time off cycle
has elapsed, a separate time on value is used for all successive cycles as
long as the temperature remains above the curtain opening temperature.
When the temperature falls to 79oF, the sidewall and endwall curtains
begin to close and continue to do so until fully closed if the temperature
remains below this point. If the temperature rises to 79.3oF, the curtains
stop closing.
30 QM 1324.rev.00
SS 5027
The curtains close intermittently according to the time on and time off
settings:
TIME ON
CLOSE
STOP CLOSING
TIME OFF
NOTE: The curtains do not open if the current outside temperature is
below the Low Outside Temperature Limit or above the High Outside
Temperature Limit as defined in the Outside Settings (see below).
Stage 2 or 3 Operation in Natural Ventilation Mode
When the curtains open, the controller goes into natural ventilation mode.
In this mode, the user has the capability of toggling the stage before the
natural ventilation mode (stage 2 or 3) on or off from the front panel (the
push-button is used to access this feature). The fans of the stage before
natural ventilation mode (stage 2 or 3) start operating when the temperature drops below the temperature at which the curtains start closing
+ the OFF delay.
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QM 1324.rev.00 31
SS 5027
SETTINGS
1
Adjusting the Opening and Closing Temperatures
The opening and closing temperatures are the temperature values at which
the curtains open or close. The hysteresis is fixed at 0.3oF and determines
when the curtains stop operating. When these values are adjusted, all the
starting values for consecutive stages are adjusted by the same amount.
The closing temperature is bounded below by the temperature at which
Stage 2 fans turn off. The difference between the opening and closing
temperatures can go from 0.5°F to 20.0°F (0.3°C to 11.1°C).
Set the selection knob to CURTAINS - OPEN/CLOSE TEMP.
The current curtain opening
temperature flashes on the
display, alternating with the
letters OPE.
ROOM TEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
START SETUP
TEMP. DELAYS
TIMER TEMP. RANGE
START TEMP. STAGE 2
OPEN / CLOSE TEMP.
TIMER
CURTAINS
Use the adjustment knob to set
the opening temperature to the desired value.
Press the push-button. The current curtain closing temperature
flashes on the display, alternating with the letters CLO.
Use the adjustment knob to set the closing temperature to the
desired value.
2
Adjusting the Initial Curtain Time On Value
The curtain opening cycle uses two time on values that are adjustable by
the user. The initial time on value is used when the curtains open for the
first time after having been at rest. Once the first time on/ time off cycle
has elapsed, a separate time on value is used for all successive cycles as
long as the temperature remains above the curtain opening temperature.
Set the selection knob to CURTAINS - TIMER. The current initial
curtain opening time on value flashes on the display, alternating with
“ ini ” and “ On ”.
32 QM 1324.rev.00
SS 5027
Use the adjustment knob to set the initial opening time on value to
the desired value.
3
Adjusting the Curtain Timer
Set the selection knob to CURTAINS - TIMER. The current initial
curtain opening time on value flashes on the display, alternating with
“ ini ” and “ On ”.
Press the push-button. The current curtain opening time on value
flashes on the display alternating with the word “ OPE ” and “ On ”.
Use the adjustment knob to set the opening time on value to the
desired value.
Press the push-button. The current opening time off value flashes,
alternating with the word “ OPE ” and “ Off ”.
Use the adjustment knob to set the opening time off value to the
desired value.
Press the push-button. The current curtain closing time on value
flashes on the display, alternating with “ CLO ” and “ On ”.
Use the adjustment knob to set the closing time on value to the
desired value.
Press the push-button. The current closing time off value flashes,
alternating with the word “ CLO ” and “ Off ”.
Use the adjustment knob to set the closing time off value to the
desired value.
The time on and time off parameters can take values from 0 to 900 seconds.
QM 1324.rev.00 33
SS 5027
4
Adjusting the Outside Temperature Limit
This value is used to ensure that the natural ventilation mode does not start
(i.e. the curtains are not opened) when the outside temperature is too low.
If the outside temperature is below the low temperature limit, the curtains
do not open. Limit values range from -40oF to 99.9 oF (-40oC to 37.7oC)
and are bounded by the high temperature limit (used in tunnel ventilation).
Set the selection knob to OUTSIDE TEMP. / SETTINGS. The current
outside temperature is displayed.
Press the push-button. The current lower limit is displayed, alternating with the letters LO.
Use the adjustment knob to set the lower limit to the desired value.
5
Adjusting the OFF Delay
The Off delay is used to determine at which temperature below the curtain
start closing temperature the stage 2 or 3 fans start operating. The Off
delay ranges from 0 to 2°F (0 to 1.1°C) below the curtains start closing
temperature.
Set the selection knob to STAGE 2 — START TEMP. The current
starting temperature flashes on the display.
If stage 3 is used (internal switch #6 ON), press the push-button four
times to select the Off delay menu. If the stage 3 is not used (internal switch #6 OFF), press the push-button twice in order to select
the Off delay menu. The Off delay menu flashes alternating with the
word "OFF" and "DEL"
Use the adjustment knob to change the setting.
34 QM 1324.rev.00
TUNNEL VENTILATION
CURTAIN SETUP
To position the curtains for tunnel ventilation, the controller fully closes
the sidewall curtains and fully opens the endwall curtains. This is referred
to as doing the curtain setup. Either one of the curtains may already be in
the required position, depending on when the setup is done.
The curtain setup is done when the following conditions are met:
EITHER
Room Temperature >= Stage 6 Starting Temperature
OR
Room Temperature >= Stage 4 Starting Temperature
AND
Outside Temperature >= High Outside Temperature Limit
When these conditions are met, the controller waits a user-specified delay
called the In Tunnel Delay before going into the tunnel ventilation mode.
During this delay, the curtains are set up. All other stages are inactive
except Stages 1 and 2.
After the delay has elapsed, the cooling stages operate according to the
room temperature as shown in the following diagram except for Stage 4
which is always in operation. (The diagram assumes that stages 8 and 9
are used for cooling). Note that internal switch #6 must be set to OFF to
use Stage 7 for tunnel ventilation (Stage 3 is no longer available for normal
cooling purposes when this is done).
The curtain setup is undone when the following conditions are met:
Room Temperature <= Stage 6 Stop Temperature
AND
Outside Temperature <=High Outside Temperature Limit - 3oF
When these conditions are met, the controller undoes the curtain setup in
two phases lasting 240 seconds in all. In the first phase, the controller
fully opens the sidewall and endwall curtains. All stages are inactive
except Stage 4. The duration of this phase is determined by a
QM 1324.rev.00 35
SS 5027
Ventilation
Level
STAGE 9
STAGE 8
STAGE 7
STAGE 6
STAGE 5
STAGE 4
Opening Temp.
Curtains
Start To
Stage 5
1.5 oF
Start To
Stage 6
1.5 oF
1.5 oF
Start To Start To
Stage 7 Stage 8
1.5 oF
TUNNEL VENTILATION
Start To
Stage 4
1.5 oF
Start To
Stage 9
Room Temperature
36 QM 1324.rev.00
SS 5027
user-specified delay called the Out Tunnel Delay. In the second phase,
Stage 1 fans operate at full-speed and Stage 2 fans operate normally. If
the curtains are not yet fully open, they continue opening. All other stages
are inactive. The duration of this phase is the time remaining after the out
tunnel delay has been subtracted from the total duration of 240 seconds.
After the delay has elapsed, the cooling stages operate according to the
room temperature as shown in the preceding diagram. The table below
summarizes stage operations going into and coming out of tunnel ventilation mode.
NORMAL
MODE
NATURAL
VENTILATION
MODE
TUNNEL VENTILATION MODE
CURTAIN
S E TU P
OPERATION
OPERATION
CURTAIN SETUP UNDONE
OPERATION
IN TUNNEL
DELAY
PHASE I
(OUT
TU N N E L
DELAY)
PHASE II
STAGE 1
FANS
ON/OFF AS
NEEDED
ON
ON
ON
ON
ON
STAGE 2
FANS
ON/OFF
AS NEEDED
ON/OFF USER
SETTING
ON
ON
ON
ON
SIDEWALL
CURTAINS
OPEN/CLOSE
WITH TIMER
OPEN WITH
TIMER
FULL
CLOSE
FULL
CLOSE
FULL OPEN
FULL OPEN
ENDWALL
CURTAINS
OPEN/CLOSE
WITH TIMER
OPEN WITH
TIMER
FULL OPEN
FULL OPEN
FULL OPEN
FULL OPEN
STAGE 4
FANS
OFF
OFF
OFF
ON
NONSTOP
ON
OFF
STAGE 5
FANS
OFF
OFF
OFF
ON/OFF
AS NEEDED
OFF
OFF
STAGE 6
FANS
OFF
OFF
OFF
ON/OFF
AS NEEDED
OFF
OFF
STAGE 7
FANS
OFF
OFF
OFF
ON/OFF
AS NEEDED
OFF
OFF
STAGE 8
FANS
OFF
OFF
OFF
ON/OFF
AS NEEDED
OFF
OFF
STAGE 9
FANS
OFF
OFF
OFF
ON/OFF
AS NEEDED
OFF
OFF
QM 1324.rev.00 37
SS 5027
SETTINGS
1
Adjusting the In and Out Tunnel Delays
The In Tunnel Delay is the delay for doing the curtain setup when going
from normal mode to tunnel ventilation mode (see above). It can be adjusted
from 0 to 240 seconds. When undoing the curtain setup, the duration of
the first phase is determined by the Out Tunnel Delay. This value can be
adjusted from 0 to 240 seconds. Note that the total delay for undoing the
curtain setup (Phase I and Phase II) is 240 seconds.
Set the selection knob to START
TEMP / SETUP DELAYS —
STAGE 4. The current starting
temperature flashes on the
display.
Press the push-button. The
current In Tunnel Delay is
displayed, alternating with the
word "in".
ROOM TEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
START SETUP
TEMP. DELAYS
TIMER TEMP. RANGE
START TEMP. STAGE 2
OPEN / CLOSE TEMP.
TIMER
CURTAINS
Use the adjustment knob to adjust the In Tunnel Delay to the desired
value.
Press the push-button. The current Out Tunnel Delay is displayed,
alternating with the word "out".
Use the adjustment knob to adjust the Out Tunnel Delay to the
desired value.
2
Adjusting the Stage 4 Tunnel Starting Temperature
Each tunnel ventilation stage is activated by specifying a starting temperature. When adjusting these temperatures, remember that changes made
to one of the stages will adjust the starting temperatures of all the consecutive stages. The starting temperature is bounded below by the opening temperature of the curtains + 0.5oF and above by the curtain opening
temperature + 20oF.
38 QM 1324.rev.00
SS 5027
Set the parameter selection knob to START TEMP / SETUP DELAYS
— STAGE 4. The current starting temperature for Stage 4 flashes
on the display.
Turn the adjustment knob to adjust the starting temperature to the
desired value.
3
Adjusting the Stage 5 to 9 Tunnel Start Temperatures
Each tunnel ventilation stage is activated by specifying a starting temperature. When adjusting these temperatures, remember that changes made
to one of the stages will adjust the starting temperatures of all the consecutive stages. Starting temperatures are bounded below by the starting
temperature for the preceding stage + 0.5oF and above by the starting
temperature for the preceding stage + 20oF. Note that the last cooling
stage is a mist stage (see below).
Set the parameter selection knob
to START TEMP. — STAGES 5 9. The current starting temperature for Stage 5 is displayed,
alternating with the letters
"st.5".
Turn the adjustment knob to
adjust the starting temperature
to the desired value.
ROOM TEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
TIMER TEMP. RANGE
START TEMP. STAGE 2
START SETUP
TEMP. DELAYS
OPEN / CLOSE TEMP.
TIMER
CURTAINS
Press the push-button as required to select one of the other stages
up to stage 9. For each stage, the starting temperature is displayed,
alternating with the letters "st.x" where x is the number of the
stage. Note that stage 7 is not available when internal switch #6 is
set to ON.
Turn the adjustment knob to adjust the starting temperature to the
desired value.
QM 1324.rev.00 39
SS 5027
4
Adjusting the High Outside Temperature Limit
This value is used to determine when the curtain setup is done or undone
(see Curtain Setup). The upper limit can range from -40oF to 99.9 oF
(-40oC to 37.7oC) and is bounded below by the lower limit (used for natural
ventilation).
Set the selection knob to OUTSIDE TEMP. / SETTINGS. The current
outside temperature is displayed.
Press the push-button twice. The current upper limit is displayed,
alternating with the letters HI.
Use the adjustment knob to set the upper limit to the desired value.
MIST COOLING
The last tunnel cooling stage operates according to a separate timer and
can be configured as a mist cooling stage. The number of heating stages
being used determines which stage this is.
NUMBER OF HEATING STAGES
0
1
2
MIST STAGE
9
8
7*
The mist timer is defined below. If a mist stage is not needed, time off
should be set to zero.
TIME ON
MIST UNITS ON
MIST UNITS
OFF
TIME OFF
* Note that if stage 7 is not used for tunnel ventilation (internal switch #6 is ON), the
mist stage is stage 6.
40 QM 1324.rev.00
SS 5027
The mist stage can be operated either with respect to the other cooling
stages (staged) or with respect to the set point (floating). To use the
second method, set internal switch #7 to ON. The diagram below illustrates the operation of a mist stage.
Mist units operate
in timer mode
Mist units
turn off
1.5oF
Mist
OFF
Set Point
1
Room
Temperature
Start
Temp.
Adjusting the Mist Starting Temperature
The starting temperature can be adjusted in the same way as a fan stage
(see above). Note that if a floating mist is used, the starting temperature
ranges from 0.5ºF above the set point up to 40.0ºF above the set point.
2
Adjusting the Mist Timer
The time on and time off parameters can take values from 0 to 60 minutes.
Set the selection knob to START
TEMP — STAGES 5 - 9. The
current starting temperature for
Stage 5 flashes on the display,
alternating with the letters st.5.
ROOM TEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
TIMER TEMP. RANGE
START TEMP. STAGE 2
START SETUP
TEMP. DELAYS
OPEN / CLOSE TEMP.
TIMER
CURTAINS
QM 1324.rev.00 41
SS 5027
Press the push-button as required to step to the mist stage. The
starting temperature is displayed, alternating with the letters "st.x"
where x is the number of the mist stage.
Press the push-button once again. The current time on flashes,
alternating with the word On.
Use the adjustment knob to set the time on to the desired value.
Press the push-button. The current time off flashes, alternating with
the word OFF.
Use the adjustment knob to set the time off to the desired value.
42 QM 1324.rev.00
HEATER SETTINGS
Two modes of heating are available: staged and zoned heating. Use the
dipswitch settings to select the desired mode. When staged heating is used,
the temperature used is the average room temperature. When zoned
heating is used, Heater A uses the temperature readings from probes 1 and
2 and Heater B uses the temperature readings from probes 3 and 4.
STAGED HEATERS
Heating
Heater B ON
Heater B OFF
Heater B
Heater A ON
Heater A
Heater A OFF
HEATER
B / ON
TEMP.
= 70oF
HEATER
A / ON
TEMP.
= 72oF
Room
Temperature
OFF
TEMP.
= 74oF
Set Point
= 75oF
If the room temperature rises:
- at 72oF: Heater B turns off.
- at 74oF: Heater A turns off.
If the room temperature falls:
- at 72oF: Heater A turns on.
- at 70oF: Heater B turns on.
QM 1324.rev.00 43
SS 5027
1
Adjusting Off Temperature for Staged Heaters
The heater off temperature can provide substantial energy savings if correctly adjusted according to the outside temperature. It is the temperature
below the set point at which the heating units turn off (see diagram above).
The off temperature is bounded above by the set point and below by the
set point — 20oF.
Set selection knob to HEATER A/
B — OFF TEMP. The current off
temperature flashes on the
display.
Use the adjustment knob to
adjust the off temperature to the
desired value.
2
ROOM TEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
START SETUP
TEMP. DELAYS
TIMER TEMP. RANGE
START TEMP. STAGE 2
OPEN / CLOSE TEMP.
TIMER
CURTAINS
Adjusting Starting Temperatures for Staged Heaters
The starting temperature is the temperature at which the heater turns on.
The Heater A starting temperature is bounded above by the off temperature — 0.5oF and below by the off temperature — 20oF. The Heater B
starting temperature is bounded above by the Heater A starting temperature — 0.5oF and below by the Heater A starting temperature — 20oF.
Set the selection knob to START TEMP. — STAGE 5 - 9. The
current starting temperature for stage 5 is displayed, alternating
with the letters "st.5".
Press the push-button as required until the letters HA appear,
alternating with the starting temperature for Heater A.
Use the adjustment knob to adjust the starting temperature to the
desired value.
44 QM 1324.rev.00
SS 5027
Press the push-button once. The letters Hb appear, alternating with
the starting temperature for Heater B.
Use the adjustment knob to adjust the starting temperature to the
desired value.
ZONED HEATING
Heating
Heater turns on
ON
Heater turns off
OFF
Temperature
ON
TEMP.
= 72oF
OFF
TEMP.
= 74oF
Set Point
= 75oF
Heater A - Probe 1 & 2
Heater B - Probe 3 & 4
If the room temperature rises:
- at 74oF: Heater A (Probe 1 & 2) turns off.
Heater B (Probe 3 & 4) turns off.
If the room temperature falls:
- at 72oF: Heater A (Probe 1 & 2) turns on.
Heater B (Probe 3 & 4) turns on.
Note that the heaters turn on only if the average room temperature is
lower than the set point.
QM 1324.rev.00 45
SS 5027
1
Adjusting Off Temperatures for Zoned Heaters
The heater off temperature can provide substantial energy savings if
correctly adjusted according to the outside temperature. It is the
temperature below the set point at which the heating units turn off (see
diagram above). The off temperature is bounded above by the set point
and below by the set point — 20oF.
Set selection knob to HEATER
A/B — OFF TEMP. The current
off temperature for Heater A is
displayed, alternating with the
letters "HA".
Use the adjustment knob to
adjust the off temperature to
the desired value.
ROOM TEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
START SETUP
TEMP. DELAYS
TIMER TEMP. RANGE
START TEMP. STAGE 2
OPEN / CLOSE TEMP.
TIMER
CURTAINS
Press the push-button. The current off temperature for Heater B is
displayed, alternating with the letters "Hb".
Use the adjustment knob to adjust the off temperature to the desired
value.
2
Adjusting Starting Temperatures for Zoned Heaters
The starting temperature is the temperature at which the heater turns on.
The starting temperature is bounded above by the off temperature — 0.5oF
and below by the off temperature — 20oF. As the heaters operate on
separate probes, starting temperatures can be identical for both heaters.
Set the selection knob to START TEMP. — STAGE 5 - 9. The
current starting temperature for stage 5 is displayed, alternating
with the letters "st.5".
Press the push-button as required until the letters HA appear,
alternating with the starting temperature for Heater A.
46 QM 1324.rev.00
SS 5027
Use the adjustment knob to adjust the starting temperature to the
desired value.
Press the push-button once. The letters Hb appear, alternating with
the starting temperature for Heater B.
Use the adjustment knob to adjust the starting temperature to the
desired value.
QM 1324.rev.00 47
ALARM SETTINGS
The controller sets off an alarm in the case of a power failure, a fault in
the supply circuit or a high or low temperature. Temperature alarms are
defined according to the set point as shown in the diagram below.
Room
Temperature
High Temperature Alarm
High Alarm Temperature
Set Point
Low Alarm Temperature
Time
The situation changes for high temperature alarms, however, when the
outside temperature is greater than the set point. In this case, the set
point is replaced by the outside temperature as the reference point. This
means an alarm is set off when the indoor temperature reaches Outside
Temperature + High Alarm Offset. A third parameter, called the absolute
high temperature, is defined to continue monitoring the indoor temperature for high temperatures. When the indoor temperature reaches the absolute high temperature, an alarm is set off.
1
Adjusting the Alarm Settings
The high and low alarm settings are
specified as a temperature value. The
high alarm temperature ranges from
set point + 0.5°F to set point
+ 40°F. The low alarm temperature
ranges from set point - 40°F to set
point - 0.5°F. The absolute high temperature ranges from –40°F to
120°F.
48 QM 1324.rev.00
ROOM TEMPERATURE / PROBE TEMP.
STAGE 1
SET POINT / TEMP. CURVE
ON TIME / CYCLE
OFF
TEMP.
START
TEMP.
START SETUP
TEMP. DELAYS
TIMER TEMP. RANGE
START TEMP. STAGE 2
OPEN / CLOSE TEMP.
TIMER
CURTAINS
Set the selection knob to ALARM — LO / HIGH. The current low
alarm temperature flashes on the display, alternating with the word
"LO".
Use the adjustment knob to set the low alarm temperature to the
desired value.
Press the push-button. The current high alarm temperature flashes
on the display, alternating with the word "HI".
Use the adjustment knob to set the high alarm temperature to the
desired value.
Press the push-button. The current absolute high temperature is
displayed, alternating with the letters «AbS».
Use the adjustment knob to set the absolute high temperature to the
desired value.
QM 1324.rev.00 49
TROUBLESHOOTING GUIDE
CAUSE
SOLUTION
The circuit breaker
at the service panel
is off or tripped.
Correct the problem and reset
the circuit breaker.
The wiring is
incorrect.
Correct the wiring.
The voltage selector
switch is in the
wrong position.
Set the switch to the correct
position.
The display board
interconnect cable
is not properly
plugged into the
power supply
board.
Be sure the cable is firmly
plugged in.
The display
shows "P"
when the
parameter
selection knob
is set to OUTSIDE SETTINGS.
The outside probe
is connected
improperly.
Correct the outside probe
connection.
The outside probe
is defective.
Refer to "defective probes"
The display
shows "P"
when the
parameter
selection knob
is set to ROOM.
A room probe is
connected improperly.
Correct the room probe
connection.
A room probe is
defective.
Refer to "defective probes"
PROBLEM
There is no
display.
50 QM 1324.rev.00
SS 5027
PROBLEM
CAUSE
SOLUTION
The defective
probe pilot light
is on.
A room or outside
probe is defective.
Refer to "defective probes"
The display
shows sudden
variations in the
room or outside
temperature.
A variation in
resistance is
induced on a
probe.
Be sure the probes are dry.
Locate them away from drafts
and sources of radiant heating.
Be sure the outside probe is
installed correctly. Refer to
"Installing the outside probe"
There is electrical
noise near a probe
cable.
Isolate the probe cables from
all high voltage sources. Do
not route probe cables and
other power cables through
the same electrical knockout.
Do not run probe cables next
to other power cables. When
crossing other power cables,
cross at 90°.
Stage 1 fans do
not stop
running when
the controller
is operating in
minimum
ventilation
cycle.
The cycle time is set
at the same value
as the On Time.
Set the cycle time to a higher
value than the On Time.
The wiring is incorrect. Correct the wiring. In particular,
make sure two different lines
are connected to each motor:
line L1 modulated by the
controller should be combined
with another line (N for 115V or
L2 for 230V) to activate the
motor. Also, be sure the stage 1
COMMON is supplied by line L1.
QM 1324.rev.00 51
SS 5027
PROBLEM
CAUSE
SOLUTION
The mist is not
operating as
desired.
The mist time on
and time off were
incorrectly adjusted.
The mist time on and time off
are in minutes. Adjust the mist
time on and time off correctly.
The cooling
fans are not
running.
The wiring is
incorrect.
Correct the wiring. Be sure
two different lines are connected to each fan motor or
heater: the controller's output
line L1 should be combined
with another line
(N for 115V or L2 for 230V) to
activate the fan motor or
heater. Also, be sure the
stage's COMMON is supplied
by line L1.
The stage's fuse is
open.
Replace the fuse.
The display board
interconnect cable
is not properly
plugged into the
power supply
board.
Be sure the cable is firmly
plugged in.
The fan motor or
heater is defective.
Check if the motor or heater is
defective by connecting it to an
alternate power supply. If it still
is not operating, replace the
motor or heater.
The controller is
defective.
Listen to see if there is a
clicking sound when the stage
or heater pilot light turns on. If
there is no clicking sound,
contact your distributor to
repair the controller.
or
The heaters are
not turning on.
52 QM 1324.rev.00
SS 5027
SOLUTION
PROBLEM
CAUSE
The curtains do
not work.
The fuse on the one
of the curtain
outputs is blown.
Replace the fuse.
The heaters,
mist units and
curtains do not
work.
The slave box is not
properly connected
to the master.
Verify the connection.
The fuse on the
slave box is blown.
Replace the fuse.
The voltage selector
on the slave box is
not properly set.
Set the voltage selector to the
proper voltage.
QM 1324.rev.00 53
TECHNICAL SPECIFICATIONS
MASTER BOX:
Supply: - 115/230 VAC (-18%, +8%), 60 Hz, L1 same phases as Stage 1,
overload and overvoltage protection fuse F11-1A fast blow.
- 12 VDC for AC back-up supply; can activate stages 2 through 9
if supplied with DC back-up voltage.
Stage 1: Variable output, 60 Hz, 10A FAN (3/4 HP/115 VAC) / (1.5 HP/
230VAC), fuse F1-15A slow blow.
Stage 2: ON-OFF output, 115/230 VAC, 60 Hz, 30VDC, 6A FAN,10A RES,
fuse F2-15A slow blow.
Stage 4: ON-OFF output, 115/230 VAC, 60 Hz, 30VDC, 6A FAN,10A RES,
fuse F3-15A slow blow.
Stage 5: ON-OFF output, 115/230 VAC, 60 Hz, 30VDC, 6A FAN,10A RES,
fuse F4-15A slow blow.
Alarm: ON-OFF output, 115/230 VAC, 60 Hz, 30VDC, 3A, fuse F8-3A slow
blow.
SLAVE BOX:
Supply: - 115/230 VAC (-18%, +8%), 60 Hz, L1 same phases as Stage 1,
overload and overvoltage protection fuse F9-1A fast blow.
- 12 VDC for AC back-up supply; can activate stages 6 through 9
and curtains if supplied with DC back-up voltage.
Sidewall Curtains: OPEN-CLOSE output, 115/230 VAC, 60 Hz, 30VDC,
5A winch output, fuse F1-5A fast blow.
Endwall Curtains: OPEN-CLOSE output, 115/230 VAC, 60 Hz, 30VDC, 5A
winch output, fuse F3-5A fast blow.
Stage 6: ON-OFF output, 115/230 VAC, 60 Hz, 30VDC, 6A FAN,10A RES,
fuse F5-10A slow blow.
54 QM 1324.rev.00
SS 5027
Stage 7: ON-OFF output, 115/230 VAC, 60 Hz, 30VDC, 6A MOTOR
OUTPUT,10A RES, fan / mist, fuse F6-10A slow blow.
Stage 8: ON-OFF output, 115/230 VAC, 60 Hz, 30VDC, 6A MOTOR
OUTPUT,10A RES, fan / mist / heater B, fuse F7-10A slow blow.
Stage 9: ON-OFF output, 115/230 VAC, 60 Hz, 30VDC, 6A MOTOR
OUTPUT,10A RES, fan / mist / heater A, fuse F8-10A slow blow.
Probes: Low voltage ( < 5V), isolated from the supply. Operating range:
-40.0° to 120.0°F (-40.0° to 48.9°C). Accuracy: 1.8oF (1oC) between 41o and
95oF (5o and 35oC).
Enclosure: ABS, moisture and dust-tight.
The room temperature where the controller is located MUST
ALWAYS REMAIN BETWEEN 32o AND 104oF (0o AND 40oC).
QM 1324.rev.00 55
FACTORY SETTINGS
-PAR AME T E R
Te m p e r a t u r e S e t P o i n t
7 5 oF ( 2 3 . 9 oC )
R AN GE OF
VAL U E S
-40 to 99.9
(-40 to 37.7
o
o
F
C)
a
OFF
days < 100
Ti m e r Te m p . R a n g e
3°F (1.7°C)
0 . 5 t o 2 0 oF
( 0 . 3 t o 1 1 . 1 oC )
Ti me On
15 seconds
Te m p e r a t u r e C u r v e
Stage 1
FAC T ORY
S E T T IN G
C ycle Ti me
300 seconds
0 to 900 seconds by
increments of 15 seconds
S t a g e 2 - S t a r t i n g Te m p .
7 9 oF ( 2 6 . 1 oC )
0 . 5 t o 2 0 oF
( 0 . 3 t o 1 1 . 1 oC ) f r o m
Set Point
S t a g e 3 - S t a r t i n g Te m p .
8 1 ° F ( 2 7 . 2 oC )
0 . 5 t o 2 0 oF
( 0 . 3 t o 1 1 . 1 oC ) f r o m
Set Point
O p e n i n g Te m p e r a t u r e
8 1 oF ( 2 7 . 2 oC )
0 . 5 t o 2 0 oF
( 0 . 3 t o 1 1 . 1 oC ) f r o m
S t a g e 2 / 3 S t a r t i n g Te m p .
C l o s i n g Te m p e r a t u r e
7 9 . 5 oF ( 2 6 . 4 oC )
0 . 5 t o 2 0 oF
( 0 . 3 t o 1 1 . 1 oC ) f r o m
O p e n i n g Te m p .
Op e ni ng Ini ti a l Ti me On
20 seconds
(0 to 900 sec.)
Op e ni ng Ti me On
20 seconds
Op e ni ng Ti me Off
60 seconds
C lo si ng Ti me On
20 seconds
C lo si ng Ti me Off
60 seconds
Curtains
H i g h O u t s i d e Te m p . L i m i t
L o w O u t s i d e Te m p . L i m i t
Alarm
7 5 oF ( 2 3 . 9 oC )
5 0 oF ( 1 0 oC )
L o w Te m p e r a t u r e
6 5 oF ( 1 8 . 3 oC )
H i g h Te m p e r a t u r e
8 7 oF ( 3 0 . 6 oC )
A b s o l u t e Te m p e r a t u r e
95°F (35°C)
0 to 900 seconds by
increments of 1 second
0 to 900 seconds by
increments of 1 second
-40 to 99.9
(-40 to 37.7
o
o
F
C)
0 . 5 t o 4 0 oF
( 0 . 3 t o 2 2 . 2 oC ) f r o m
Set Point
- 4 0 t o 1 2 0 . 0 oF
( - 4 0 t o 4 8 . 9 oC )
(a) The range of values for curve temperatures is 35°F to 99.9°F (1.7°C to 37.7°C).
56 QM 1324.rev.00
SS 5027
FACTORY
SETTING
RANGE OF
VALUES
Stage 4
S t a r t i n g Te m p .
8 3 oF ( 2 8 . 3 oC )
0 . 5 t o 2 0 oF
( 0 . 3 t o 1 1 . 1 oC ) f r o m
C u r t a i n O p e n i n g Te m p .
In Tunne l D e la y
45 seconds
Out Tunne l D e la y
45 seconds
PARAMETER
0 to 240 seconds
S t a g e 5 - S t a r t i n g Te m p .
8 5 oF ( 2 9 . 4 oC )
0 . 5 t o 2 0 oF
( 0 . 3 t o 1 1 . 1 oC ) f r o m
S t a g e 4 S t a r t i n g Te m p .
S t a g e 6 - S t a r t i n g Te m p .
8 7 oF ( 3 0 . 6 oC )
0 . 5 t o 2 0 oF
( 0 . 3 t o 1 1 . 1 oC ) f r o m
S t a g e 5 S t a r t i n g Te m p .
S t a g e 7 - S t a r t i n g Te m p .
8 9 oF ( 3 1 . 7 oC )
0 . 5 t o 2 0 oF
( 0 . 3 t o 1 1 . 1 oC ) f r o m
S t a g e 6 S t a r t i n g Te m p .
S t a g e 8 - S t a r t i n g Te m p .
9 1 oF ( 3 2 . 8 oC )
0 . 5 t o 2 0 oF
( 0 . 3 t o 1 1 . 1 oC ) f r o m
S t a g e 7 S t a r t i n g Te m p .
S t a g e 9 - S t a r t i n g Te m p .
9 3 oF ( 3 3 . 9 oC )
0 . 5 t o 2 0 oF
( 0 . 3 t o 1 1 . 1 oC ) f r o m
S t a g e 8 S t a r t i n g Te m p .
Ti me ON
1 Min.
0 to 60 Min.
Ti me OF F
1 Min.
0 to 60 Min.
7 4 oF ( 2 3 . 3 oC )
0 . 5 t o 2 0 oF
( 0 . 3 t o 1 1 . 1 oC ) f r o m
Set Point
Mist
H e a t e r O f f Te m p .
NOTES:
i) These initial parameter settings will not be retained in the controller's
memory. Each new setting will replace the preceding one.
ii) If the power supply is cut off, the last parameter settings will be
retained in memory until the power is restored.
QM 1324.rev.00 57
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