Cumberland 8-01 Owner's manual

Brand: Cumberland

Model: 8-01

Type: Owner's manual

Part No. 4801-5117 Rev. 8-01 Owners Manual Farm Hand SCS

Farm Hand SCSFarm Hand SCS

Farm Hand SCS w/BackFarm Hand SCS w/Back--UpUp

Hired Hand, Inc.

1733 Co Rd 68

PO Box 99

Bremen, AL 35033

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS Table of Contents

Table of Contents

Section Title Page

1. Ratings and Specifications..............................................................................................................................1

2. Warnings.........................................................................................................................................................1

3. Limited Warranty............................................................................................................................................1

4. Introduction to the SCS™(Smart Contactor System)......................................................................................2

5. Farm Hand SCS Panels...................................................................................................................................3

5.1 Illustration Of Farm Hand SCS™ with Back-Up....................................................................................4

5.2 Farm Hand SCS™ Stage Control Switches ............................................................................................4

6. Connecting Multiple SCS™ Panels to a Master Controller............................................................................5

7. Introduction to the SCS™ Back-Up System...................................................................................................6

8. SCS™ Back-Up Operating Conditions...........................................................................................................6

8.1 Normal SCS™ Operation .......................................................................................................................6

8.2 Emergency Operation .............................................................................................................................7

8.3 Override Operation.................................................................................................................................7

8.4 Fail-Safe Relay Operation.......................................................................................................................7

9. Curtain Operation During Back-up.................................................................................................................8

10. Setting SCS™ Back-Up Stage Jumpers......................................................................................................8

11. Changing the SCS™ Curtain Back-Up Stage.............................................................................................8

12. Day-to-Day Back-Up Operating Instructions..............................................................................................9

12.1 Toggle Sequence of Mode Button ..........................................................................................................9

12.2 Checking/Adjusting Temperatures, and Settings ....................................................................................9

13. Set Limits....................................................................................................................................................9

14. Program Mode Parameters........................................................................................................................10

15. Calibrate Sensors......................................................................................................................................10

16. Installation................................................................................................................................................11

16.1 Unpacking Components........................................................................................................................11

16.2 Installation Instructions.........................................................................................................................11

16.3 Checklist For Setting Up Control Of House Temperature....................................................................11

17. Wiring Diagrams.......................................................................................................................................12

17.1 SCS™ 16 Stage Assembly with Back-Up.............................................................................................12

17.2 Setting the Back-Up Board Jumpers, Sensors and Alarm Connections................................................13

17.3 16 Stage SCS™ Panel...........................................................................................................................14

17.4 Setting the Local Network Address ......................................................................................................15

17.5 SCS™ Local Net and Back-Up Interconnection Diagram....................................................................16

17.6 SCS™ Connections to the Power Supply .............................................................................................17

17.7 SCS™ Connections to the Curtain Machine.........................................................................................18

17.8 Connecting Power from Breaker to a Heat Stage or Cool Stage...........................................................19

18. Maintenence..............................................................................................................................................20

18.1 Removing and Replacing a Relay Strip ................................................................................................20

19. Temperature vs. Sensor Resistance Table.................................................................................................21

20. Error Codes...............................................................................................................................................22

21. SCS™ Program Label...............................................................................................................................23

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 1

1. Ratings and Specifications

• 115/230 Volts (Depending on switch position.)

• 50/60 Hz.

• 1 hp .per stage @ 125VAC, 2 hp per stage @ 240 VAC.

• Room must be kept above 32°F/0°C.

Note: Fail-Safe relay strips are rated at half the load shown above. Care should be taken to insure that

Fail-safe relays are not overloaded.

2. Warnings

Warning!

When this controller is used in a life support heating and ventilation system where

failure could result in loss or injury, the user should provide adequate back-up, or

accept the risk of such loss or injury!

3. Limited Warranty

All products are warranted to be free from defects in material and workmanship for a period of one year

from the date of purchase if installed and used in strict accordance with the installation instructions.

Liability is limited to the sale price of any products proved to be defective or, at manufacturer’s option,

to the replacement of such products upon their return. No products are to be returned to the

manufacturer, until there is an inspection and/or a return-goods authorization (RGA) number is issued.

All complaints should be directed first to the authorized distributor who sold the product. If satisfaction

is not obtained or the name of the distributor is not known, write the manufacturer that appears below,

directed to the attention of Customer Service Manager.

This limited warranty is expressly in lieu of any and all representations and warranties expressed or

implied, including any implied warranty of merchantability or fitness for a particular purpose. The

remedy set forth in this limited warranty shall be the exclusive remedy available to any person. No

person has authority to bind the manufacturer to any representation or warranty other than this limited

warranty. The manufacturer shall not be liable for any consequential damages resulting from the use of

our products or caused by any defect, failure or malfunction of our products. (Some areas do not allow

the exclusion or limitation of incidental or consequential damages, so the above limitation or exclusion

may not apply to you.)

This warranty gives you specific legal rights and you may also have other rights that vary from area to

area.

Warrantor:

Hired-Hand, Inc.

1733 Co. Rd. 68

PO Box 99

Bremen, AL 35033

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 2

4. Introduction to the SCS™(Smart Contactor System)

The SCS™ (Smart Contactor System), in its simplest definition, is an output drive system that is used

along with an environmental control. This drive system is capable of driving inductive loads of up to

1 hp. But, as the name implies, this system is much more than a normal mechanical relay system.

This section will introduce you to most of the important functions of the SCS™ panel. The following

lists the SCS™ panels that are currently available:

• 16 Stage SCS™ w/Back-Up System

• 16 Stage SCS™ Expansion System

• 8 Stage SCS™ Expansion System

• 24 Stage SCS™ w/Back-Up System*

* This system is not shown in this manual. It is used exclusively with the Farm Hand Vent Master 24.

Refer to Part No. 4802-5124, “Farm Hand Vent Master 24”, for specific information on the 24 Stage

SCS™.

The SCS™ name is derived from the intelligence and flexibility that the drive system possesses. Its

flexibility is displayed by the systems ability to be expanded at any time. It is built in 16 stage blocks

so the user can choose how many outputs stages are satisfactory. Depending on the environmental

controller that is used, up to eight 16 Stage SCS™ panels can be attached to the controller. That

allows an almost unlimited number of stages to be utilized. Inside the SCS™, outputs are grouped

together using relay strips. There are four relays on each strip. These strips are easily removed in the

event of a failure. You no longer have to worry about replacing an entire PC board every time one

mechanical relay fails. In addition, there is no rewiring involved.

The SCS™ panel’s intelligence is displayed in many ways. First, it only requires a twisted pair wire

to be connected from the master controller to itself. Additional stages are added by a “daisy-chain”

connection from one SCS™ to the next. In addition, the SCS™ is capable of relaying information

back the master controller that indicates the status of the stages. For example, it can detect if a stage is

not being allowed to operate due to the “Auto-Off-Manual” switch. This information can be used to

determine if an emergency situation has arisen. If so, the master controller can use the SCS™ Back-

Up System to override. This brings us to the most important feature of the SCS™ panel, the Back-Up

System.

An integrated Back-Up System accompanies the SCS™. This Back-Up System is like none before.

The SCS™ still exists as a stand-alone Back-Up System with its own temperature sensors. The

SCS™ still allows the user to set a “High Limit” and a “Low Limit” in which the system will maintain

by using three back-up cooling stages and one back-up heating stage. In addition, the SCS™ has

constant communication with the master controller. The importance of this communication will

become clear when you read the Back-Up System section of the manual, Section 7. This additional

communication means an added layer of protection for your important investment.

The SCS™ also contains an important fail-safe relay function. Should the SCS™ become inoperative,

such as loosing its power source, one relay strip (4 stages) will fail in a safe condition. This will cause

the ventilators connected to the selected relay strip to be switched on. See Section 8.4 for more

information about the fail-safe relay function.

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 3

5. Farm Hand SCS Panels

Farm Hand SCS 8 Stage Expansion Module

Farm Hand SCS 16 Stage Expansion Module

Farm Manager SCS 16 Stage Assembly

with Back-Up

Stage Control

Switches

Stage

Status

Indicators

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 4

AUTO

OFF

Stage Control Switch (3 position)

Stage Status Indicators

Write in

the Name

you

choose for

this Stage

Stage Control

Switches

Main

Display

Control

Buttons

Back-Up

Stage

Indicators

Display

Indicators

Farm Manager 16 stage SCS™

with Back-Up

5.1 Illustration Of Farm Hand SCS™ with Back-Up

The Farm Hand SCS™ with Back-Up is designed to operate as a one room controller. (See Section

7.) There are two main areas on the SCS faceplate. These are the Stage Switch area and the Main

display area. The Stage switch area contains the stage control switches and an area to label the

function of an individual stage. The label area also contains the stage status indicator. See Section

5.2 for a more detailed

discussion of this area.

The Main display area

contains controls and

indicators for

monitoring and

programming the SCS

Back-Up. When the

controller is operating

normally, the Main

Display shows the

current room

temperature. The

display can also display

the high and low room

temperature limits. See

Section 12.1. The

Control buttons are

Mode, plus (+), and

minus (-) and are used

to select the

information in the main

display. The type of information in the main Display is indicated by which Display Indicator LED is

lighted. See Section 12.

Finally, the Back-Up Stage Indicators will indicate if the SCS™ as gone into Back –Up and in which

of the four Back-Up modes the SCS™ is currently operating. Under normal operation none of these

LEDs will be lighted. If back-up HEAT is required, the LED beside Heat will be lighted. If back-up

cooling is required, the LED beside COOL 1 will be lighted. If additional cooling is required, the

LED beside COOL 2 and COOL 3 will also be lighted depending on the setting of the temperature

limits and the actual temperature. See Section 8.1.

5.2 Farm Hand SCS™ Stage Control Switches

The SCS™ Panel has a three

position switch for each one of

the stages. There is a clear white

area in which the name of the

stage can be written, and the

Stage Status indicator is located.

This red LED is ON if the stage

is running. The SCS™ will

control the stages based upon the

switch settings as follows:

ON – In this position the stage

runs continuously. The

stage can not be turned off by the SCS™ Panel or the Master Controller.

OFF – In the “OFF” position the Stage will not run except under Back-Up control.

AUTO – The stage is under control of the SCS™ panel and the associated Master Controller.

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 5

6. Connecting Multiple SCS™ Panels to a Master Controller

Up to 128 SCS™ stages can be controlled from a Master controller over the Farm Hand Local

Network. Control information is passed between the Master Controller and each of the SCS™ Panels

over a Local Network connection. The Local Network connection only extends between the SCS™

Panels and the Master Controller and is different from the Network that is used to connect other types

of Farm Hand controllers to a Personal computer as in the Farm Manager Network. An illustration of

several SCS™ Panels connected to a Master Controller is illustrated below:

Up to eight SCS™ 16 Stage Panels can be controlled over the Local Network. The Local Network

connection cable is run from the Master controller

to the SCS™ Panels in any order. The SCS™

Panels are assigned individual Local Network

addresses so the Master controller can

communicate with the desired SCS™ Panel.

Local addresses are assigned by setting a series of

three DIP switched on the SCS™ Panel circuit

board. See Section 17.4 for the location of the DIP

switches. There are three switches that can be set

as shown in the above table. For example, if all

three of the DIP switches are set to “ON”, the

SCS™ Panel identifies and controls stages 1

through 16. If the DIP switches are all set to “OFF” the SCS™ Panel identifies and controls stages

113 through 128.

Farm Manager SCS™ Local Network

Farm Hand 8 or 16 SCS Panel

Up to eight SCS 8 or16

stage Expansion Modules

Farm Hand 8 or 16 SCS Panel

Node

Farm Hand 8 or 16 SCS Panel

Farm Hand Master Controller

To Other 8 or 16 SCS Panels

Note

1: Each of the SCS Panels must

be set to the proper Local Network

Address. See Section 6.

Note 2: If Back-Up is used, only one

of the SCS Panels needs to be an SCS

Panel with Back-Up. See Section

XXX.

LOCAL NET ADDRESS

SWX 1

1 2 3

DIP switches

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 6

DIP Switch Settings SCS™

Stage

Address

Assignment

No. 1 No. 2 No. 3

ON ON ON 1 –16

OFF ON ON 17-32

ON OFF ON 33-48

OFF OFF ON 49-64

ON ON OFF 65-80

OFF ON OFF 81-96

ON OFF OFF 97-112

OFF OFF OFF 113-128

As discussed in Section 7, the SCS™ can be used with Back-Up. In the Local Network configuration

shown above, any one of the SCS™ units can be equipped with the Back-Up circuit board. Further,

only one Back-Up board is required within any Local Network. See Section 17.5 for a wiring

diagram.

7. Introduction to the SCS™ Back-Up System

The SCS™ system has the option of containing an

integrated Back-Up System. This Back-Up System

contains 4 stages: 1 Heat and 3 Cool. This system’s

purpose is to back up the master controller in the case

of failure. The Back-Up System is a stand-alone

control system. It contains its own temperature

sensors that react to a High and Low Limit. It

contains its own drive relays that are capable of

overriding the master controller and the stage switches

that are located on the SCS™ panel.

This Back-Up System is unlike any emergency control

system on the market. This system offers a much

higher level of protection. In addition to being able to

monitor for high and low temperatures, it also stays in constant communication with the master

controller. This communication allows the Back-Up System to run a minimum ventilation timer on

Cool 1 or override the SCS™ panel if certain conditions warrant. The conditions are explained in

Section 8. All Back-Up Systems can protect against a high or low temperature but only this system

can protect against today’s biggest grower concern: MINIMUM VENTILATION FAILURE.

8. SCS™ Back-Up Operating Conditions

As explained above, this is more than your customary Back-Up System. This system contains three

separate modes of operation that are entered depending on the circumstances. These modes are

Normal Operation, Emergency Operation, and Override Operation. These modes will be explained in

more detail below. These modes are entered based on information that it has received, or not

received, from the master controller. No matter what mode of operation the Back-Up System is in, it

will always attempt to maintain the temperature inside the High and Low Limits.

8.1 Normal SCS™ Operation

During Normal Operation, the Back-Up System always maintains the temperature between its high

and low limits. It accomplishes this by using its temperature sensors and its four stage outputs. If the

temperature drops below the Low Limit, the Heat stage will come on. That stage will not turn off until

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 7

it warms the building at least 2°. The same is true if the temperature goes above the High Limit

however, there are three levels of cooling stages on the Back-Up System. The following example

explains the operation of the stages in relationship to the temperature and the limits.

In this example the Low Limit is set as 66ºF, and the High Limit is set as 86ºF. If the temperature

drops to 66ºF, then the HEAT stage turns on. The HEAT stage turns off when the temperature rises to

68ºF (2º above the Low Limit). If the temperature rises to 86ºF, then COOL 1 turns on. If the

temperature continues to rise to 88ºF (2º above the High Limit), then COOL 2 turns on. If the

temperature rises to 90ºF, then COOL 3 turns on. Stages turn off at temperatures as indicated by the

arrows in graph 1.

8.2 Emergency Operation

In this mode of operation, the system still maintains the temperature as it does in Normal Operation.

In addition, it will begin running the first cooling stage (Cool 1) on a 5 minute timer. The timer

percentage is determined by the setting in P3 (Emergency Timer Percentage). This mode of operation

is entered if communication is lost between the master controller and the Back-Up System. In this

case, the Back-Up System assumes that the master controller is lost and tries to maintain the minimum

ventilation until someone recognizes the problem. Emergency Operation is indicated by a “LnE”

flashing in the display of the Back-Up System. The alarm relay on the Back-Up System is also

engaged in this mode operation.

8.3 Override Operation

In this mode of operation, the system still maintains the temperature as it does in Normal Operation.

In addition, it receives commands from the master controller to turn on certain stages of heating or

cooling. There are many different circumstances that could cause this to happen, in this manual, we

will list one of the most common. For example, if communication were lost from the SCS™ panel to

the master controller, the master controller would be unable to turn the appropriate stages on in the

usual way. Therefore, the master controller would communicate to the Back-Up System and indicate

which stages that it is trying to turn on. At this point, the Back-Up System would obey the command

and turn the appropriate stages on. For this mode of operation to work to its fullest potential, care

must be taken to insure that the stage jumpers on the relay strips match the stage setting in the master

controller (Refer to Section 12). Override Operation is indicated by a “LnO” flashing in the display of

the Back-Up System. The alarm relay is also engaged in this mode of operation.

8.4 Fail-Safe Relay Operation

There are two types of Relay strips used in the SCS™. The Normally Open (NO) strip requires a

signal from the controller board in order to energize a stage of ventilation. Should power be removed

from the SCS the Normally Open Relay strips would not be able to energize a ventilator. On the other

64 68 72 76 80 84 88 92

Heat

Cool 3

Cool 2

Cool 1

Temperature (ºF)

Graph 1 Cool 1, 2, 3 and Heat

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 8

To Back-

up Relay

hand the Fail-Safe relay strip would close each of the relays in the strip resulting in energizing the

ventilators in case of a controller power failure. Each of the relay strips contains four relays for

controlling four stages. In the SCS™ 16 there are a total of four relay strips, three will be N.O. and

one will be a Fail-Safe. In the SCS™ 8 there are two relay strips. One is a N.O. and one is a Fail-

Safe strip. The operator must insure that the Fail Safe relay strip is connected only to stages that

should be turned on in case of a controller failure. See Section 18 for a physical description of the

relay strips. It is not recommended to place heating equipment on Fail-Safe stages.

9. Curtain Operation During Back-up

The SCS contains a relay that can operate the curtains during Back-up operation of the SCS. The

curtains will automatically open during back-up based upon the selection of the back-up stage, either

COOL1, COOL2 or COOL 3. The SCS is shipped from the manufacturer with the Curtains connected

to the COOL 1 Stage. To change the Cool stage see Section 11.

10. Setting SCS™ Back-Up Stage Jumpers

Pictured at the right is a Stage Relay Board consisting of four stage relays and the associated stage

jumper for each stage relay. The stage jumpers a

labeled COOL 1, COOL 2, COOL 3 and HEAT.

Location of the jumper places the stage in one of

these four modes, or if the jumper is not inserted, the

stage is not placed on Back-Up. The jumpers

should be placed based on the operation of stage

equipment and should be the same as assigned in the

Master Controller. Jumpers are placed according the

following table:

Type of Stage

Operation Jumper

Assignment

Cool Negative Fan COOL 1

Cool Negative

Tunnel Fan COOL 2

Cool Tunnel Fan COOL 3

Heat Stage HEAT

Stage not on Back-

Up No Jumper

Installed

11. Changing the SCS™ Curtain Back-Up Stage

At the top of the SCS relay board is a terminal strip labeled BACKUP

SYSTEM. Connect the jumper to the appropriate Stage, either COOL

1, COOL 2 or COOL 3. The SCS system is sent from the manufacturer

with the Backup curtain connection to COOL 1.

Stage

Jumpers

STAGE RELAY BOARD

Stage Relay

Stage

Harness

connector

cables to

Terminal

Block

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 9

12. Day-to-Day Back-Up Operating Instructions

12.1 Toggle Sequence of Mode Button

Continuously pressing the Mode button cycles the display through the parameter sequence as

illustrated below. The parameter data is shown in the display.

12.2 Checking/Adjusting Temperatures, and Settings

When you press the Mode button, watch the green LED’s beside the main display. Whichever LED is

lit is the parameter you are viewing: “Room Temp”, “High Limit”, and “Low Limit” values.

Note: To adjust these parameters, press the Mode button until you see the parameter you want to

adjust, then use the + button to increase the value, and the - button to decrease the value.

Room Temperature

The average of the sensors located inside the house, or the temperatures of sensors 1 and 2

alternately displayed in the main display if sensor 2 is enabled.

High Limit

The temperature inside the house at which the controller will turn on the first SCS™ Back-

Up cooling stage.

Low Limit

The temperature inside the house at which the controller will turn on the first SCS™ heating

stage.

13. Set Limits

The Farm Hand SCS™ Back-Up System requires setting of a High Limit and a Low Limit at which

cool/heat stages will turn on. To determine where to set the High Limit and the Low Limit, first

decide on a target temperature of the house. This is usually the target temperature of the primary

controller. Then set the High Limit to a temperature several degrees above the desired target

temperature. Set the Low Limit to a temperature several degrees below the desired target temperature.

Note: It is recommended that the High Limit be at least 10º above the room’s target

temperature and that the Low Limit be 10º below the room’s target temperature.

Set High Limit

To set High Limit:

1. Press the “Mode” button to select the High Limit Indicator.

Display LEDs

Display

Room Temp

High Limit

Low Limit

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 10

2. Press the ”+” and ”–“ buttons to enter the value of the High Limit.

3. Setting Complete.

Set Low Limit

To set Low Limit:

1. Press the “Mode” button to select the Low Limit Indicator.

2. Press the + and – button to enter the value of the Low Limit.

3. Setting Complete.

14. Program Mode Parameters

Settings that are usually set up once per growout, or maybe even just for summer or winter are

referred to as program parameters and are accessed by taking the controller to program mode. To get

to program mode, press and hold the “Mode” button for five seconds. When the controller has entered

program mode, the main display will flash between “P1” and the value of this parameter.

The “P1” is known as a parameter number. All the program items for the controller have a parameter

number assigned to them. The numbers are listed in the table “Program Mode Parameters” below with

a short description of each parameter. When in program mode, you change the value of certain

parameters by using the + and - buttons as needed. When you have finished with the current setting,

press the “Mode” button to move to the next parameter. The program mode parameters for the Farm

Hand SCS™ are shown in Table 1.

Table 1. Program Mode Parameters

15. Calibrate Sensors

The temperature sensors should be calibrated to ensure accurate temperature detection. To calibrate

the sensors an independent temperature measurement is required such as a thermometer or

thermocouple.

Parameter Description

P1 This selects either English (OFF = Fahrenheit) or Metric (ON = Celsius) temperature

units.

P2 Determines if an alarm is sent on a Back-Up condition. (ON = Alarm On, OFF = Alarm

OFF) An alarm will be generated on an error condition even if P2 is set to OFF. See

Section 20.

P3 Emergency Timer Percentage. (0% to 100%). This determines the percentage that

COOL 1 will be run in an Emergency condition.

P41 This is the software version number. Not Changeable.

P42 This is the Setup Number that represents the controller type. Not Changeable.

PS1 This is the calibration temperature for Sensor 1.

Instructions: With the controller operating, use a digital thermometer or similar

independent temperature measuring device to measure the temperature at Sensor 1

location. With PS1 selected, use the + and – buttons to set the calibration temperature

to the thermometer reading.

PS2 This is the calibration temperature for Sensor 2.

Instructions: Same as Sensor 1 except substitute PS2 for PS1 in the instructions above.

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 11

1. Place a thermometer inside the house at the location of each sensor. Allow a few minutes for

the temperature to stabilize.

2. Take readings from the thermometers located at Sensor 1 and Sensor 2.

3. Use the Program Mode to set calibrations of Sensor 1 and Sensor 2 (Refer to Table 1).

16. Installation

16.1 Unpacking Components

Unpack the system, and check that all components are present. Locate the required tools.

1 Farm Hand SCS™

1 Installation Kit

2 Temperature Sensors

1 Manual

16.2 Installation Instructions

1. Hang Farm Hand SCS™ with four screws and the plastic mounting brackets included.

2. Make sure all power supplies are disconnected before breaking any wires, or reaching into the

enclosure.

3. If the SCS™ contains a Back-Up, open the Farm Hand SCS™ and locate sensor connections.

Refer to Wiring Diagrams, Schematics, etc.

4. For the Back-Up, run sensors out to locations inside the house. Be sure that the sensors are in a

safe location, free from any extreme temperature influences (direct sunlight, water, etc.) Use care

when securing sensor wires so that you do not cut the wire. Any short or break in the wire will

cause improper sensor operation.

5. Connect each sensor to its appropriate terminals inside the enclosure. See Section17.2.

6. Wire the power supply. See Section 17.6

7. Wire the individual stages. See Wiring Diagrams at the back of this manual.

8. Wire the Local Network connection.

9. Close the Farm Hand SCS™ and tighten the two screws in the lid to secure the unit shut.

16.3 Checklist For Setting Up Control Of House Temperature

Please read and follow the Installation instructions on the following pages. Refer to the following

checklist as an aid in setting the Farm Hand SCS™ Back-Up controllers.

1. Physically install the controller, temperature

sensors, and wires leading from the output

stages to cooling and/or heat equipment or to a

control panel.

Refer to Section 16, Installation

Refer to Section 17.8, Connecting

Power from Breaker to a Heat Stage

or Cool Stage

2. Verify the jumpers on the Stage block to that

select either 115v or 230v operation. Set

Heat/Cooling Stage options.

Refer to Section17.8, SCS™

Connections to the Power Supply

3. Install power to controller. Refer to Section 17.6.

4. Set High Limit & Low Limit Refer to Section 13, Set Limits

5. Calibrate Sensors Refer to Section 15, Calibrate

Sensors

Tools Required:

Mini Screwdriver

Wire Strippers

Standard Screwdriver

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 12

17. Wiring Diagrams

Warning!

Before connecting power to the machine, be sure to place the jumpers that select the line

input voltage. See Section 17.6.

17.1 SCS™ 16 Stage Assembly with Back-Up

J18 J19 J16

J24J22J23

ULN2803A

R21

R22R20

R28

R29

R30

TZ3

TZ1

ULN2803A

R25

R26

R27

TZ2

R24

R23

J21

J20

J17

J1 J3

ULN2803A

R19R14R10

74HCT373

R114

R111

R112

R110

R109

R108

R107

X101

C103

C104

J10

J11

SWX1

R18

R13

R12

R11

PIC16C63

75176

R15

MOV6

MOV5

J25

PIC16C73A

U102

93LC66

U104

C101

MC14489

U105

J105

R106

U103

ULN2803A

75176

U101

C102

J12J13J14J15

74HCT373

R16

J26

BR3

BR1

C11

ADJ OUT IN

VR4

D22

RLY104

RLY101

RLY102

RLY103

RLY105

J104

J102

J109

R31

R32

J101

J107

R101

R102

R105

J106

J103

R113

R103

R104

J110

J108

CUT-OUTCUT-OUT

CUT-OUT CUT-OUT

RELAY STRIP 1-4

B. Crider

Hired Hand, Inc.

LOCAL NET ADDRESS

COOL3COOL2COOL1HEAT

KUP SYSTEM

HEAT

COOL3 COOL2 COOL1

BACKUP SYSTEM

EARTH

AC POWER (<24 V)

EARTHL2L1

POWER (<24 V)

L NET

LOCAL NET

RELAY STRIP 5-8 RELAY STRIP 9-12 RELAY STRIP 13-16

PCB 162 Rev 'A'

Hired Hand, Inc.

B. Crider

PCB 163 Rev 'A'

STATUS LEDs

TRANSMIT

RECIEVE

NORMAL

POWER

BACKUP ALARMSENSOR 1SENSOR 2

BLACK

COM WHITE

SENSOR 2

ENABLE

ON=Enabled

OFF=Disabled

NO NC WHITE BLACK

LIGHTS

COMMON

120VAC HOT

120VAC NEUT

GROUND

FAN

CONTROL

MICRO

SWITCH

Power Supply

Stage Connecting

Blocks Local

Network Back-Up

Connection

Power Supply

(24 VAC)

Back-Up

Control Board

Status

LEDs

Local Net

Address

Switches

Curtain Back-up

Connection

Curtain Back-

up Stage

Connection

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 13

17.2 Setting the Back-Up Board Jumpers, Sensors and Alarm Connections

Inset A

Inset B

Inset C

Inset A

Jumper Connection to

Enable Sensor 2

Inset B

Sensor 1 & 2 Connections

Inset C

Back-Up Alarm Connection

Sensor 2

Enabled

Installed – Enabled

Vacant – Disabled

Jumper

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 14

17.3 16 Stage SCS™ Panel

Back-Up Jumper Positions

(One Jumper block for each stage)

Cool 1 – Cool Negative

Cool 2 – Cool Negative Tunnel

Cool 3 – Cool Tunnel

Heat – Heat Stage

No Jumper – Stage not on Back-Up

NOTE: Jumpers must match the settings

of the Master Controller.

Inset A

Jumper Positions Inset B

SCS Status Indicators

STATUS LEDs

Power

Normal

Receive

Transmit

LED Status Indicators

Power – Green when power applied to board.

Normal – Red when Network and Board are OK.

Receive – Red when receiving over the Local

Network. (NOTE: This LED may appear

to be on continuously)

Transmit – Red when transmitting to the Master

Controller.

COOL 3

COOL 2

COOL 1

HEAT

Inset B

Inset A

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 15

17.4 Setting the Local Network Address

DIP Switch Settings SCS™ Stage

Address

Assignment

No. 1 No. 2 No. 3

ON ON ON 1 -16

OFF ON ON 17-32

ON OFF ON 33-48

OFF OFF ON 49-64

ON ON OFF 65-80

OFF ON OFF 81-96

ON OFF OFF 97-112

OFF OFF OFF 113-128

LOCAL NET ADDRESS

SWX 1

1 2 3

Inset A

NOTE: If using the SCS Panel with the Vent Master 24, refer to the Vent

Master 24 Owners Manual (Part # 4801-5124) for proper wiring

connections and network address settings.

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 16

17.5 SCS™ Local Net and Back-Up Interconnection Diagram

SCS™ 16 Stage

w/Back-Up

To Master

Controller

Pos (+) - Red

Neg (-) – Black

NC- Green

Inset A

Inset B

Inset A Inset B

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 17

17.6 SCS™ Connections to the Power Supply

SCS

™

Panel

Power Supply

L1 (Hot)

L2 (Neutral)

Ground

From Breaker

Panel

Wire jumpers as

shown below for

either 120 or 240

volts AC.

120V use red jumpers, jump pos. 1&4, 2&3

240V use black jumper, jump pos. 2&4

HOT

120V

NEUT

240V

NEUT

GND

1 2 3 4 5 6

240 Volts 120 Volts

120V use red jumpers, jump pos. 1&4, 2&3

240V use black jumper, jump pos. 2&4

HOT

120V

NEUT

240V

NEUT

GND

1 2 3 4 56

Part No. 4801-5117 Rev. 8-01 Farm Hand SCS 18

17.7 SCS™ Connections to the Curtain Machine

Top Left of SCS Panel

POWER TRAK

HOT OPEN CLOSE

CONTROLLER

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Cumberland 8-01 Owner's manual

Cumberland 8-01 Owner's manual

Cumberland 8-01 Owner's manual

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