Varifan ECS-2M User manual

ECS-2M
USER’S MANUAL
ENVIRONMENT CONTROL SYSTEM
2 stages
computer compatible
Varifan
®
ECS-2M
ADJUST
+
MIN SPEED
TIMER
on
off
DIFF
F2
rel
reduc.
per day
LO
HI
6
5
1
2
3
4
10
11
1 2
7
8
9
12
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A
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A
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F
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1
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2
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ECS 2M
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. Furthermore the
manufacturer recommends to test all the functions and
equipment connected to the ECS, including the alarm
system and backup devices, after installation, after
modifications, and once a 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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CHAPTER 1 - INTRODUCTION
1. General ...........................................................................5
1.1 Description .......................................................................5
Definition of terms .........................................................................7
CHAPTER 2 - INSTALLATION
2.1 Unpacking ........................................................................9
2.2 Mounting ........................................................................10
2.3 Switch Settings................................................................10
2.3.1 Line Voltage Selector Switch ..........................................10
2.3.2 Software Settings Switch ................................................11
2.4 Connection Procedure ....................................................11
2.4.1 Input Power .....................................................................11
2.4.1.1 115 VAC..........................................................................11
2.4.1.2 230 VAC..........................................................................12
2.4.2 Fan 1 ...............................................................................12
2.4.4 Fan 2/ Heater ..................................................................12
2.5 Temperature/Humidity Probes ........................................12
2.5.1 Single Temperature Probe..............................................13
2.5.2 Averaging ........................................................................13
2.5.3 Humidity Probe................................................................13
2.6 Alarm...............................................................................13
2.7 Powering Up....................................................................14
CHAPTER 3 - USER’S GUIDE
LED Status Window ........................................................21
Control Dials....................................................................21
PRIMARY FUNCTIONS
Main Set Point Temperature ...........................................23
Fan 1 Modulation Band ...................................................24
Fan 1 Minimum Speed ....................................................25
Fan 1 Duty Cycle.............................................................26
Heater/Fan 2 Relative Set Point......................................27
TABLE OF CONTENTS
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ECS 2M
CONTENTS CONTINUED...
Reduction per Day ......................................................... 28
Record Low Temperature .............................................. 29
Record High Temperature ............................................. 30
Room Temperature Display ........................................... 31
SECONDARY FUNCTIONS
Relative Humidity Set Point............................................ 32
Fan 1 Motor .................................................................... 33
Fan 1 Minimum Humidity Speed .................................... 34
Fan 1 Period................................................................... 35
Heater/Fan 2 Hysteresis................................................. 36
Minimum Ramping ......................................................... 37
Low Temperature Alarm................................................. 38
High Temperature Alarm ................................................ 39
Relative Humidity Display............................................... 40
APPENDIX
Motor Compatibility Table............................................................ 43
Troubleshooting........................................................................... 44
Specification ................................................................................ 45
Record Form ............................................................................... 46
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1. GENERAL
This document provides a description of the ECS-2M
control panel. It is organized as follows:
•Introduction
•Installation
•User’s Guide
•Appendix
1.1 DESCRIPTION
Congratulations on the purchase of your ECS-2M
environmental control system. The ECS-M product
line provides you with full control over temperature,
humidity, air flow and heat, resulting in a comfortable
environment for your livestock.
The ECS-M product line offers a number of added
features over existing ECS controls such as:
•Compatible with DIP-1.
•Hi/Lo temperature indication.
•Automatic temperature reduction (ramping).
•Adaptable variable speed outputs for a wide
selection of fan model types.
•Humidity probe.
•Full torque fan start preventing motor damage.
The ECS-2M provides microprocessor control over a
two stage output.
The first stage controls a variable speed fan which
can operate at a continuous low speed to ensure
good quality of air when room temperature is below
the main set point. 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 air flow.
CHAPTER 1 - INTRODUCTION
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ECS 2M
DESCRIPTION CONTINUED...
The second stage controls either a heater for colder climates,
or a second fan where further cooling is required.
The ECS-2M provides you with full control of two stages via
the use of an easy to follow display panel. All programmable
features can be customized to meet your requirements. The
ECS-2M keeps you constantly informed by displaying the
status of all of its outputs as well as the room temperature.
With an optional humidity probe, the ECS-2M displays current
humidity 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 a computer via the use of an optional RCM-
40 remote monitoring unit . This provides remote control
monitoring of each room. All control panel variable outputs
are fused, and all programmable settings are maintained
whether or not the ECS-2M is powered.
The ECS-2M provides an automatic constant temperature
reduction (ramping) feature for your maturing livestock. A built
in low temperature safety factor prevents temperatures from
reaching dangerous limits.
With the ECS-2M in control of your climate, you are assured
of optimal living conditions for your livestock.
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MAIN SET POINT
The desired room temperature. Other temperature
settings on the ECS-2M are relative to the main set point
temperature.
RELATIVE TEMPERATURE
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 a closed area.
ROOM HUMIDITY
The actual humidity level of a closed area.
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.
HYSTERESIS
Range of temperature where two conditions are possible.
The output depends on whether the temperature was
increasing or decreasing when it enters that range.
DEFINITION OF TERMS
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ECS 2M
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Chapter 2 describes the installation of the ECS-2M control
panel.
2.1 UNPACKING
Unpack the ECS-2M and inspect contents for damage.
Should the contents appear to be damaged, contact your
local distributor for material return procedures.
The package should contain the following standard items:
•1 ECS-2M control .
•1 Installed temperature probe (model number 2004-
1K).
•2 Cable fasteners or fuses.
•1 User manual.
The following optional items may be added:
•3 additional temperature probes for temperature
averaging,
•1 humidity probe. The ECS-2M requires the RHT-1
humidity probe for maximum accuracy of monitoring
and control of humidity levels.
The manufacturer recommends that the following
installation instructions be adhered to as closely as
possible, and all work be performed by a certified
electrician. Failure to do so may void the warranty!
CHAPTER 2 - INSTALLATION
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ECS 2M
2.2 MOUNTING
Use a screwdriver to remove the faceplate and the plate
on the power compartment.
Once both faceplates are off, install the mounting screw on the
wall and install the unit on it. Use two more screws to secure
the ECS-2 M in place using the bottom mounting holes.
2.3 SWITCH SETTINGS
The ECS-2M is configured for a variety of options via two
switches as follows:
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 1, 2, and 3.
To limit the unit’s exposure to noxious gases install it in
a hallway.
Make sure the unit is mounted right side up, with the
cable entry holes facing down.
The ECS-2M will operate in a temperature range of 32°F -
120 °F (0 °C - 50 °C).
* It is prohibited to use overhead cables outside the building.
Mounting hardware is not included with the unit.
230V
115V
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2.3.2 - Software Settings 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 two of the control panel.
Switch 4 To connect a humidity probe, DIP switch #4
must be ON.
2.4 CONNECTION PROCEDURE
For the connection procedures which follow refer to
Figures 1 to 3.
2.4.1 - Input power
Use a screwdriver to remove cable knock-outs for the
installation of cabling to the control panel.
2.4.1.1 - 115 VAC
Make sure that the line voltage selector switch is set to
115 VAC. Connect the power cable to terminals 5 and 6 on
the main (bottom) board, connect the ground wire to
terminal 7 on the main board .
OFF ON
Fahrenheit
Settings locked
Stage 2 = Heat
Not used
Celsius
Setting unlocked
Stage 2 = Fan
Relative Humidity
Do not apply power to the control panel until all
connections have been completed!
CHAPTER 2 - INSTALLATION
OFF ON
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ECS 2M
2.4.1.2 - 230 VAC
Assure that the line voltage selector switch is set to
230 VAC. Connect the power cable to terminals 5 and 6
on the main (bottom) board, connect the ground wire to
terminal 7 on the main board.
2.4.2 - Fan 1 (terminals 3 and 4)
Stage 1 of the ECS-2M controls the operation of the
primary fan. Connect the two leads from Fan 1 to
terminals 3 and 4 on the main (bottom) board.
2.4.3 - Fan 2/Heater (terminals 1 and 2)
Stage 2 of the ECS-2M provides a dry contact closure
which controls the operation of a second fixed 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 (inductive) for a fan.
Set the software settings DIP switch behind of the control
panel faceplate to ON for a fan or OFF for a heater.
Connect the heater or Fan 2 to terminals 1 and 2 on the
main (bottom) board.
2.5 TEMPERATURE / HUMIDITY PROBES
Temperature and humidity 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
humidity connections are illustrated in Figure 4, while
temperature probe averaging connections are illustrated in
Figure 5.
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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
control panel terminals labelled “Probe” as indicated in
Figure 4.
2.5.2 Averaging (optional)
Four temperature probes are required if temperature
averaging is desired in larger rooms. Place the probes in
appropriate locations to best average room temperature.
Refer to Figure 5.
2.5.3 Humidity Probe (optional)
Install one humidity probe in an area that best reflects the
overall room humidity. Connect the humidity probe to the
control panel terminals labeled “Probe” as indicated in
Figure 4.
2.6 ALARM
The ECS-2M 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 normally open or normally closed connections as
indicated in Figure 4
Use shielded cabling for probes . Connect the shields
to “SHLD” terminal. Failure to do so may result in
inaccurate readings!
Momentary power interruptions may trigger false
alarms! To avoid false alarming when the ECS-2M is
connected to an alarm system, install a time delay
relay between the ECS-2M and the alarm system.
CHAPTER 2 - INSTALLATION
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ECS 2M
2.7 POWERING UP
Before powering up the ECS-2M, attach the faceplate 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 it’s display by briefly
lighting all the segments of its LED. Make sure that all
segments light up.
Following the LED display test, the unit displays the actual
temperature of the room.
If temperature is not displayed, refer to the Trouble-
Shooting section in the appendix of this document.
Fig. 1
One Fan (115V) and One Heating Unit (115V)
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Fig. 2
Two Fans (230V)
Fig. 3
One Fan (230V) and One Heating Unit (115V)
CHAPTER 2 - INSTALLATION
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ECS 2M
4
Notes for Figures 1, 2 and 3
Power cut and protection devices in case of overload.
Only use fans that have thermal protection devices.
Terminals 4 and 5 are internally connected.
Connect the grounding wire to the ground terminal 7.
Should be on a different circuit from the ECS.
1
2
4
3
Fig. 4.
Probes and Alarm Wiring
5
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Fig. 5
Temperature Averaging Probe Connection
Fig. 6
Main Board: Terminal Blocks, Switches, Fuses and Ground
CHAPTER 2 - INSTALLATION
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ECS 2M
VARIFAN
RECOMMENDED CONTROL BACKUP
WARNING AND PRECAUTIONS
Equipment failure, blown fuses and/or tripped breakers
may prove harmful to the content of the building. It is
therefore strongly recommended to install backup devices
and alarm or warning devices (see fig. 7).
BACKUP THERMOSTAT. If the Varifan control fails, then
the thermostat will start the dedicated fan at full speed
when the temperature will reach the T15-WD set value.
Therefore, the T15-WD should be accessible for
adjustment and should be set at the same temperature as
the alarm, i.e. approximately 5ºF above the fan relative set
point.
BACKUP POWER SOURCE. The DPDT relay connects
to source 1 in normal operation but will switch to source 2
if source 1 is off. The relay shall be chosen to support the
load connect to it.
ALARM CIRCUIT. In regular circumstances, the alarm
circuit of the Varifan Control is a short circuit. But if the
Varifan control is defective or if there is no power applied
to it, then the alarm circuit of the control will be an open
circuit.
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Fig 7.
Recommended control backup
CHAPTER 2 - INSTALLATION
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ECS 2M
3.0 USER’ GUIDE
The ECS-2M front panel shown next 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,
humidity level, and programmable settings.
In addition, the LED status window displays the
operational status of Fans 1, and Fan 2 or a heater via
three additional LEDS (shown above in LED window).
When illuminated, each LED indicates that its associated
fan or heater is operating. The rightmost LED lights 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 9 primary or 9 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.
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