Varifan ECS-4+ User manual

ECS-4+
USER’S GUIDE
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ECS-4+
Although the manufacturer has made every effort
to ensure the accuracy of the information
contained herein, this document is subject to
change without notice due to ongoing product
development.
WARNINGS AND PRECAUTIONS
Equipment, probe failure, blown fuses and/or
tripped breakers may prove harmful to the
contents of the building. Therefore it is strongly
recommended to install backup devices and alarm
or warning devices. Spare equipment should also
be available at the owner’s site. Equipment
manufactured by the manufacturer is protected
against normal line surges. High surges caused
by thunder storms or power supply equipment
may damage this equipment. For added security
against line voltage surges it is recommended that
surge and noise suppression devices be installed
at the electrical distribution panel. Use of shielded
cable for probes is recommended for protection
against lightning. These devices are available
from most electrical supply distributors.
RECOMMENDATIONS
The manufacturer recommends that all installation
procedures described herein be performed by a
qualified electrician or installation technician.
Further more the manufacturer recommends to
test all the functions and equipment connected to
the ECS, including the alarm system and backup
devices, after installation, after change to the
installation and every month after that.
Fuse verification and replacement, as well as the
proper setting of control values shall be the
responsibility of the owner of this equipment.
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TABLE OF CONTENTS
CHAPTER 1 - INTRODUCTION
1. General ...........................................................................5
1.1 Description .......................................................................5
Definition of terms .........................................................................7
CHAPTER 2 - INSTALLATION
2.1 Unpacking ........................................................................9
2.2 Mounting ..........................................................................9
2.3 Switch Settings................................................................11
2.3.1 Line Voltage Selector Switch ..........................................11
2.3.2 Software Settings DIP Switch .........................................11
2.4 Connection Procedure ....................................................12
2.4.1 Input Power .....................................................................12
2.4.1.1 115 VAC..........................................................................12
2.4.1.2 230 VAC..........................................................................12
2.4.2 Fan 1 ...............................................................................12
2.4.3 Fan 2 ...............................................................................12
2.4.4 Fan 3/Heater ...................................................................12
2.4.5 Air Inlet Baffle Board .......................................................13
2.5 Temperature Probes / Static Pressure Probes ...............13
2.5.1 Single Temperature Probe ..............................................13
2.5.2 Temperature Averaging ..................................................13
2.5.3 Static Pressure Probe .....................................................13
2.6 Alarm...............................................................................14
2.7 Powering Up....................................................................14
CHAPTER 3 - USER’S GUIDE
LED Status Window ........................................................19
Control Dials....................................................................19
PRIMARY FUNCTIONS
Main Set Point Temperature ...........................................21
Fan 1 Minimum Speed ....................................................22
Fan 1 Duty Cycle.............................................................23
Fan 2 Relative Set Point ................................................24
Fan 2 Minimum Speed ....................................................25
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ECS-4+
Heater/Fan 3 Relative Set Point......................................26
Air Inlet Relative Set Point ..............................................27
Air Inlet Static Pressure Set Point ...................................28
Static Pressure Display ...................................................29
Reduction per Day ..........................................................30
Record Low Temperature ..............................................31
Record High Temperature ..............................................32
Room Temperature Display ............................................33
SECONDARY FUNCTIONS
Fan 1 Motor.....................................................................34
Fan 1 Differential.............................................................35
Fan 2 Differential.............................................................36
Fan 2 Motor.....................................................................37
Heater/Fan 3 Hysteresis .................................................38
Air Inlet Run Timer ..........................................................39
Air Inlet Delay Timer........................................................40
Minimum Ramping ..........................................................41
Low Temperature Alarm..................................................42
High Temperature Alarm.................................................43
APPENDIX
Motor Compatibility Table ............................................................44
Toubleshooting.............................................................................45
Specifications ...............................................................................46
Warranty.......................................................................................47
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CHAPTER 1 - INTRODUCTION
1. GENERAL
This document provides a description of the ECS 4+
control. This document is organized as follows:
•Introduction
•Installation
•User’s Guide
•Appendix
1.1 DESCRIPTION
Congratulations on the purchase of your ECS 4+
environmental control system. The ECS 4+ provides you
with full control over temperature, static pressure, air flow,
and heat resulting in a comfortable environment for your
livestock.
The ECS + product line offers a number of added features
over existing ECS controls such as:
•Hi/Lo temperature indication
•Automatic temperature reduction (ramping)
•Adaptable variable speed outputs for a wide selection
of fan models.
•Static pressure probe
Kits are available to upgrade existing control units.
The ECS 4+ provides microprocessor control over a four
stage output.
The first stage controls a variable speed fan which can
operate at a continuous low speed to ensure good quality
of air at all times. In addition, the first stage may be
programmed to cycle ON and OFF. When room
temperature rises above the main set point, the fan
accelerates to increase the airflow.
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ECS-4+
The second stage provides control over a second variable
speed fan. This second stage is also fully programmable
for settings such as minimum speed, relative set point, etc.
The third stage controls either a heater for colder climates,
or a third single speed fan where additional cooling is
required.
The fourth stage regulates the static pressure level of the
room by controlling an air inlet baffle board which controls
the airflow entering the room. Static pressure may be
controlled by monitoring the room temperature or via an
optional SPS-1 static pressure probe for greater accuracy
of static pressure control.
The ECS-4+ provides full control over all four stages via a
user-friendly display panel. All programmable features can
be customized to meet your requirements. The ECS-4+
keeps you constantly informed by displaying the status of
all its outputs as well as the room temperature. With an
optional static pressure probe, the ECS-4+ displays current
static pressure levels.
Safety of livestock is ensured by the continuous control of
climate and timely alarm notification should environmental
conditions exceed alarm set points. Further security may
be obtained by connecting all ECS series controls in a
network configuration to an optional RCM-40 remote
monitoring unit. This provides remote control monitoring of
each room. All control panel outputs are fused, and all
programmable settings are maintained indefinitely whether
or not the ECS-4+ is powered.
The ECS-4+ provides an automatic temperature reduction
per day (ramping) feature for your maturing livestock. A
built in low temperature safety factor prevents
temperatures from reaching dangerous limits.
With the ECS-4+ in control of your climate, you are
assured of optimal living conditions for your livestock.
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CHAPTER 2 - INSTALLATION
MAIN SET POINT
The desired room temperature. Other temperature settings
on the ECS-4+ are relative to the main set point
temperature.
RELATIVE SET POINT
A value added to or subtracted from the main set point
which results in a new temperature at which a desired
action starts or stops.
ROOM TEMPERATURE
The actual temperature of the room.
MINIMUM FAN SPEED
The desired minimum speed for variable speed fans.
RAMPING
An automatic daily reduction in the main set point and all
temperature settings relative to this.
AIR INLET BAFFLE BOARD
A device which regulates air flow into a building by
controlling the opening or closure of an air passage.
DIFFERENTIAL
ON/OFF (relay), Range of temperature where 2 conditions
are possible. The output depends on whether the
temperature is increasing or decreasing when it enters that
range.
VARIABLE (Bandwidth). Temperature range when a
variable speed fan accelerates, as the temperature
increases. Minimum value at relative set point and 100% at
relative set point +Bandwidth.
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ECS-4+
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Chapter 2 describes the installation of the ECS-4+control.
2.1 UNPACKING
Unpack the ECS-4+ from its box and inspect contents for
damage. Should the contents appear to be damaged,
contact your local distributor to return the material.
The package should contain the following standard items:
•1 ECS-4+ control
•1 installed temperature probe (model number 2004-1K)
•4 or 5 cable fasteners (4 stages and 1 line)
The following optional items may be included:
•3 additional temperature probes for temperature
averaging,
•1 SPS-1 static pressure probe. The ECS 4+ requires
the SPS-1 static pressure probe for maximum
accuracy in monitoring and control of pressure levels.
2.2 MOUNTING
The manufacturer recommends that the installation
instructions which follow be adhered to as closely as
possible, and all work be performed by a certified
electrician. Failure to do so may void the warranty!
To limit the unit’s exposure to noxious gases install the
unit in a hallway.
Make sure that the unit is mounted right side up with the
cable entry holes facing down.
The ECS-4+ will operate in a temperature range of 32°F -
120 °F (0 °C - 50 °C).
The enclosure is watertight, it is not splash proof or
immersion proof. DO NOT WATER the control. Cover the
control carefully with plastic when you are cleaning the
room.
It is prohibited to use overhead cables outside the
building.
CHAPTER 2 - INSTALLATION
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ECS-4+
Use a screwdriver to remove the lower terminal cover
exposing two mounting holes located at the bottom left and
right corners of the control panel box as shown in figure 1.
A third mounting hole is located on the rear side of the
control panel box. Refer to figure 1.
Install mounting screw on wall and hang the unit in place
by sliding the rear mounting hole of the control panel over
the screw.
Use two more screws to secure the control panel in place
using the bottom mounting holes shown in figure 1.
Mounting hardware is not shipped with the unit
Figure 1
Mounting holes location
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2.3 SWITCH SETTINGS
The ECS-4+ is configured for a variety of options via two
switches: the line voltage selector switch, and the software
settings DIP switch. These switches are described in the
following two sections.
2.3.1 - Line Voltage Selector Switch
This switch is located on the surface of the main (bottom)
board and adapts the control panel for 115 VAC or 230
VAC line voltage.
Refer to Figures 2, 3, and 4.
2.3.2 - Software Settings DIP Switch
This switch is located behind the control panel faceplate
and adjusts the following options.
1
2
3
4
Switch 1 Selects between a Fahrenheit or Celsius
display on the front panel.
Switch 2 Locks/unlocks user settings. All settings
except for main set point, record low, and
record high are locked while this switch is
off.
Switch 3 Selects between a heater or fan control on
stage three of the control panel.
Switch 4 Selects whether the air inlet baffle board is
controlled by monitoring temperature or
pressure
230V
115V
OFF ON
Fahrenheit
Settings locked
Stage 3 = Heat
Stage 4= Pressure mode
Celsius
Setting unlocked
Stage 3 = Fan
Stage 4= Temperature mode
OFF ON
CHAPTER 2 - INSTALLATION
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ECS-4+
2.4 CONNECTION PROCEDURE
For the connection procedures which follow refer to
Figures 2 through 6.
2.4.1 - Input power
To facilitate the installation work, the unit is shipped with
two cable knock-outs removed. If two cable paths are not
sufficient, remove other cable knock-outs with a
screwdriver to install extra-cabling.
2.4.1.1 - 115 VAC (terminals 11 and 12)
Make sure that the line voltage selector switch is set to
115 VAC. Connect the power cable to terminals 11 and 12
on the main (bottom) board, connect the ground wire to
terminal 13 on the main board .
2.4.1.2 - 230 VAC (terminals 11 and 12)
Make sure that the line voltage selector switch is set to
230 VAC. Connect the power cable to terminals 11 and 12
on the main (bottom) board, connect the ground wire to
terminal 13 on the main board.
2.4.2 - Fan 1 (terminals 9 and 10)
Stage 1 controls the operation of the primary fan. Connect
the two leads from Fan 1 to terminals 9 and 10 on the main
(bottom) board.
2.4.3 - Fan 2 (terminals 7 and 8)
Stage 2 controls the operation of the secondary fan.
Connect the two leads from Fan 2 to terminals 7 and 8 on
the main (bottom) board.
2.4.4 - Fan 3/Heater
Stage 3 provides a dry contact which controls the operation
of a third single speed fan or a heater. This contact closure
is voltage rated to 230 VAC. The current rating of the dry
contact is 10 Amps (resistive) for a heater and 6 Amps
(conductive) for a fan. Set the software settings DIP switch
behind the control panel faceplate to ON for a fan or OFF
for a heater.
Do not apply power to the control panel until all
connections have been completed!
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2.4.5 - Air Inlet Baffle Board
Stage 4 provides two dry contact which control a linear
actuator motor used to operate an air inlet baffle board.
One dry contact closure is used to operate the motor
winding which extends the actuator arm outwards, and one
dry contact closure is used to operate the motor winding
which retracts the actuator arm inwards. The current rating
of these dry contacts are 6 Amps (inductive).
2.5 TEMPERATURE/STATIC PRESSURE
PROBES
Temperature and static pressure probes use a “Class 2”
low voltage circuit. These cables can extend up to a
distance of 500 feet (150 meters).
Single probe temperature and static pressure connections
are illustrated in Figure 3 while temperature probe
averaging connections are illustrated in Figure 4.
2.5.1 Single Temperature Probe
Install a single temperature probe in an area that best
reflects the overall temperature of the room. Connect the
two leads and the shield of the temperature probe to the
ECS terminals labelled “Probe” as indicated in Figure 3.
2.5.2 Temperature Averaging (optional)
Four temperature probes are required to do temperature
averaging in larger rooms. Place the probes in appropriate
locations to best average the room temperature. Refer to
Figure 4.
2.5.3 Static Pressure Probe (optional)
To properly install a SPS-1 static pressure probe refer to
its installation manual supplied with the unit.
Connect the static pressure probe to the control panel
terminals labeled SCK, PWR, and GND as indicated in
Figure 3.
Use shielded cabling for probes . Connect the
shields to “SHLD” terminal. Failure to do so
may result in inaccurate readings!
CHAPTER 2 - INSTALLATION
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ECS-4+
2.6 ALARM
The ECS 4+ provides a normally open and normally closed
dry contact for alarming low or high temperature
conditions. In addition, this same contact can be used to
signal a power failure. This contact may be connected to
an alarm system, or directly to a siren and/or auto-dialer.
Make connections as indicated in Figure 3.
2.7 POWERING UP
Before powering up the ECS 4+, attach the faceplate and
the terminal strip cover to the casing of the control panel,
using the six screws previously removed.
Set Selector knob to position (12).
Upon power up, the unit will test its display by briefly
lighting all the segments of its LEDs. Make certain that all
segments light up.
Following the LED display test, the unit displays the
ambient temperature of the room.
If the temperature is not displayed, refer to the
Troubleshooting section in the Appendix of this document.
Momentary power interruptions may trigger false alarms!
To avoid them, when the ECS 4+ is connected to an
alarm system, install a time delay relay between the ECS
4+ and the alarm system.
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CHAPTER 2 - INSTALLATION
Figure 2
Two fans, one actuator and one heating unit
4
Notes for Figures 2 and 6
Power cut and protection devices in case of overload.
Only use fans that have thermal protection devices.
Terminals 8, 10, and 11 are internally connected.
Connect the ground wire to ground terminal 13.
IMPORTANT Must be on a 15A separate circuit of
the ECS. Make sure to disconnect power of the source
and all loads before wiring.
1
2
4
3
5
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ECS-4+
Figure 3
Probes and Alarm Wiring
Figure 4
Temperature Averaging Probe connections
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Figure 5
Main Board: Terminal block, switches, fuses and ground.
CHAPTER 2 - INSTALLATION
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ECS-4+
Figure 6
Recommended control backup
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CHAPTER 3 - USER’S GUIDE
The ECS 4+ front panel shown above features a LED
status window and two control dials which are respectively
used to select a function and adjust a setting.
LED STATUS WINDOW
The LED status window features a 3 digit LED readout for
the display of temperature in Fahrenheit or Celsius,
pressure level, and programmable settings.
In addition, the LED status window displays the operational
status of stages 1 through 4 via five additional LEDS (top
part of LED window). When illuminated, each LED
indicates that its associated fan, heater, or actuator motor
is active. The fifth LED lights up to indicate a low or high
temperature alarm condition.
CONTROL DIALS
The center dial is the Selector dial and is used to select
one of the control panel’s 12 primary or 10 secondary
functions. The dial located to the right of the Selector dial is
the Adjustor dial and is used to enter secondary function
mode and to adjust the setting of each function.
The 12 primary functions are:
1 Main set point temperature
2 Fan 1 minimum speed
3 Fan 1 duty cycle timer
4 Fan 2 relative set point temperature
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ECS-4+
5 Fan 2 minimum speed
6 Heater/Fan 3 relative set point temperature
7 Either the air inlet relative temperature, or the air
inlet static pressure set point
8 Static room pressure display
9 Ramping
10 Record low temperature display
11 Record high temperature display
12 Room temperature display
Any one of these functions is selected by rotating the
Selector dial to the corresponding number and associated
graphical image printed on the faceplate of the panel.
When primary functions 1 through 7 and 9 through 11 are
selected, the LED status window displays a flashing value.
When a static pressure probe is installed, function 8
displays static pressure. Function 12 displays room
temperature.
The 10 secondary functions are:
2 Fan 1 motor compatibility
3 Fan 1 differential temperature
4 Fan 2 differential temperature
5 Fan 2 motor compatibility
6 Fan 3/Heater hysteresis
7 Air inlet run timer
8 Air inlet delay timer
9 Ramping minimum temperature limit
10 Low temperature alarm
11 High temperature alarm
Select any one of these secondary functions by:
•rotating the Selector dial to (12)
•rapidly rotating the Adjustor dial back and forth to enter
secondary mode.
•rotating the Selector dial from function (12) to any other
function.
When secondary functions 2 through 11 are selected the
status window displays a flashing value along with a
scrolling LED display. Selection of function 12 takes the
control back to primary mode.
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