Varifan ECS 5M User manual

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ENVIRONMENT CONTROL SYSTEM
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Varifan
®
ECS-5M
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ECS 5M
USER’S MANUAL

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ECS 5M
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.
WARNING 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 at least 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
2.4.3 Fan 2 .............................................................................. 12
2.4.4 Fan 3 .............................................................................. 12
2.4.5 Fan 4 / Drip Cool ............................................................ 12
2.4.6 Fan 5 / Heater................................................................. 12
2.5 Temperature / Humidity Probes...................................... 13
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 GUIDE
LED Status Window........................................................ 21
Control Dials................................................................... 21
PRIMARY FUNCTIONS
Main Set Point Temperature........................................... 23
Fan 1 Minimum Speed ................................................... 24
Fan 1 Duty Cycle ............................................................ 25
Fan 2 Relative Set Point................................................. 26
Fan 2 Minimum Speed ................................................... 27
TABLE OF CONTENTS

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ECS 5M
CONTENTS CONTINUED...
Fan 3 Relative Set Point................................................. 28
Fan 4 / Drip Cool Relative Set Point 2 9
Heater / Fan 5 Relative Set Point .................................. 30
Ramping ......................................................................... 31
Record Low Temperature............................................... 32
Record High Temperature.............................................. 33
Ambient Room Display................................................... 34
SECONDARY FUNCTIONS
Relative Humidity Set Point............................................ 35
Fan 1 Motor .................................................................... 36
Fan 1 Differential ............................................................ 37
Fan 2 Differential ............................................................ 38
Fan 2 Motor .................................................................... 39
Drip Cool duty cycle ....................................................... 40
Heater / Fan 5 Differential .............................................. 41
Minimum Ramping ......................................................... 42
Low Temperature Alarm................................................. 43
High Temperature Alarm ................................................ 44
Relative Humidity Display............................................... 45
APPENDIX
Motor Compatibility Table............................................................ 47
Troubleshooting........................................................................... 48
Specification ................................................................................ 49
Record Form ............................................................................... 50

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1. GENERAL
This document provides a description of the ECS 5M
control panel. This document is organized as follows:
•Introduction
•Installation
•User’s Guide
•Appendix
1.1 DESCRIPTION
Congratulations on the purchase of your ECS 5M
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 5M offer these features:
•Compatible with IPM-1 and 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 5M provides microprocessor control over a five
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 the room temperature is below the main set
point. In addition, the first stage may be programmed to
cycle on and off. When the room temperature rises above
the main set point, the fan accelerates to increase the air
flow.
CHAPTER 1 - INTRODUCTION

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ECS 5M
DESCRIPTION CONTINUED...
The second stage provides control over a second variable speed
fan. The second stage is also fully programmable for settings such
as minimum speed, relative set point etc.
The third stage controls a third single speed fan to aid the second
fan for increased air flow.
The fourth stage controls either a fourth single fan or a drip cool
unit with programmable duty cycle and adjustable timer setting.
The fifth stage controls either a heater for colder climates, or a
fifth single speed fan where even cooling is required.
The ECS 5M provides you with full control over all five stages via
the use of an easy to follow display panel. All programmable
features can be customized to meet your requirements. The ECS
5M keeps you constantly informed by displaying the status of all of
its outputs as well as the ambient temperature. With an optional
humidity probe, the ECS 5M 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
ECS variable outputs are fused, and all programmable settings
are maintained whether or not the ECS 5M is powered.
The ECS 5M provides an automatic constant temperature
reduction (ramping) feature for your maturing livestock. A built in
low temperature safety factor prevents temperatures reaching
dangerous limits.
With ECS 5M 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 5M 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.
AMBIENT TEMPERATURE
The actual temperature of the room.
AMBIENT HUMIDITY
The actual humidity level 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.
DIFFERENTIAL
ON/OFF (relay). Range of temperature where two
conditions are possible. The output depends on whether
the temperature was increasing or decreasing when it
enters that range.
VARIABLE. (Bandwidth) Temperature range where a
variable fan speed fan accelerates, as the temperature
increase. Minimum value at relative set point and 100% at
relative set point + Bandwidth.
DRIP COOL
A device used to cool down livestock.
DEFINITION OF TERMS

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ECS 5M

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Chapter 2 describes the installation of the ECS 5M control.
2.1 UNPACKING
Unpack the ECS 5M from its box and inspect contents for
damage. Should the contents appear to be damaged,
contact your local distributor for return material procedures.
The package should contain the following standard items:
•1 ECS 5M control .
•1 installed temperature probe (model number 2004-
1K).
•5 cable fasteners or fuses.
•1 User’s manual.
The following optional items may be included:
•3 additional temperature probes for temperature
averaging,
•1 humidity probe. The ECS 5M requires the RHT-1
humidity probe for maximum accuracy of monitoring
and control of humidity levels.
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!
CHAPTER 2 - INSTALLATION

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ECS 5M
2.2 MOUNTING
Mont the control panel to the wall using the mounting
holes located on the flange of the control housing.
Once the ECS 5M is in place, use a screwdriver to
remove the six screws holding the faceplate to the
housing.
2.3 SWITCH SETTINGS
The ECS 5M 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.
To limit the unit’s exposure to noxious gases install the
unit in a hallway.
Make certain that the unit is mounted right side up with
the cable entry holes facing down.
The ECS 5M 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 shipped with the unit.
230V
115V

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2.3.2 - Software Settings Switch
This switch is located at the rear of the ECS 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 Five of the ECS.
Switch 4 To connect a humidity probe, DIP switch #4
must be at ON.
2.4 CONNECTION PROCEDURE
For the connection procedures which follow refer to
Figures 1 through 3.
2.4.1 - Input power
Use a screwdriver to remove cable knock-outs for the
installation of cabling to the ECS.
2.4.1.1 - 115 VAC
Make certain 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
the terminal 13 on the main board .
OFF ON
Fahrenheit
Settings locked
Stage 5 = Heat
Not used
Celsius
Setting unlocked
Stage 5 = Fan
Relative Humidity
Do not apply power to the ECS and all loads until all
connections have been completed!
CHAPTER 2 - INSTALLATION
OFF ON

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ECS 5M
2.4.1.2 - 230 VAC
Make certain 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 of the ECS 5M 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 of the ECS 5M 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 (terminals 5 and 6)
Stage 3 provides a dry contact closure which controls the
operation of a third fan. The current rating of dry contact is 6
Amps (conductive) for a fan. Make connections as follow:
•Connect L1 to terminal 6.
•Connect a wire of the fan to terminal 5.
•For a 115V fan, connect the second wire of the fan to N
(neutral).
•For a 230V fan connect the second wire of the fan to L2.
2.4.5 - Fan 4 Drip Cool
Stage 4 provides a dry contact closure which controls the
operation of a fourth single speed fan or a drip cool unit.
This contact closure is voltage rated to 230 VAC. The
current rating of the dry contact is 6 Amps (conductive) for a
fan. Make connections as follow:
•Connect L1 to terminal 4.
•Connect a wire of the fan or drip cool unit to terminal 5.
•For a 115V fan or Drip Cool unit, connect the second
wire of fan or Drip Cool unit to N (neutral).
•For a 230V fan or Drip Cool unit, connect the second
wire of the fan or Drip Cool unit to L2.
2.4.6 - Fan 5 / Heater
Stage 5 provides a dry contact closure which controls the
operation of a fifth single speed fan or a heater. This contact
closure is voltage rated to 230VAC.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
at the rear of the ECS faceplate to ON for a fan or OFF for a
heater. Make connections as follow:

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•Connect L1 to terminal 2.
•Connect a wire of the fan or heater to terminal 1.
•For a 115V fan or heater, connect the second wire of the fan
or heater to N (neutral)
•For a 230V fan or heater, connect the second wire of the fan
or heater to L2.
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.
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 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 the ambient temperature. Refer to Figure 5.
2.5.3 Humidity Probe (optional)
Install one humidity probe in an area that best reflects the overall
humidity of the room. Connect the humidity probe to the ECS
terminals labeled “Probe” as indicated in Figure 4.
2.6 ALARM
The ECS 5M 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.
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 5M
2.7 POWERING UP
Before powering up the ECS 5M, 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 it’s LED. Make certain that all
segments light.
Following the LED display test, the unit displays the
ambient temperature of the room.
If the temperature is not displayed, refer to the Trouble
Shooting section in the appendix of this document.
Fig. 1
Four Fans (115V) and One Heating Unit (115V)
Momentary power interruptions may trigger false alarms! To
avoid false alarming when the ECS is connected to an alarm
system, install a time delay relay between the ECS and the
alarm system.

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Fig. 2
Five Fans (230V)
Fig. 3
Four Fans (230V) and One Heating Unit (115V)
CHAPTER 2 - INSTALLATION

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ECS 5M
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 8, 10, and 11 are internally connected.
Connect the grounding wire to the 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
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
PROBES AUX ALARM
10A Slo-Blo Fan 2
10A Slo-Blo
Fan 1
1047
Ground
Connection
CHAPTER 2 - INSTALLATION

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ECS 5M
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 example 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 its
adjustment and it 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 the source 1 in normal operation but will switch to the
source 2 if source 1 is off. The relay shall be chosen to
support the load connect to it.
ALARM CIRCUIT. In normal operation, 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
L1
L2
L1
L2
5 5
5
5
IMPORTANT Must
be on
a 15A independant circuit

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ECS 5M