Cumberland 4801-5043 Farm Hand ST7-00 Owner's manual

Brand: Cumberland

Model: 4801-5043 Farm Hand ST7-00

Type: Owner's manual

Cumberland 4801-5043 Farm Hand ST7-00 is a versatile temperature controller designed for use in various agricultural applications. With its ability to manage up to 8 stages of heating, ventilation, or misting equipment, it offers precise control over environmental conditions in greenhouses, poultry houses, and other agricultural facilities.

Key features of the Cumberland 4801-5043 Farm Hand ST7-00 include:

Multi-stage control: Manage up to 8 stages of equipment independently, allowing for customized temperature profiles and energy-efficient operation.
Flexible programming: Create custom temperature schedules for different times of the day or week, ensuring optimal conditions for crop growth or livestock comfort.

Key features of the Cumberland 4801-5043 Farm Hand ST7-00 include:

Multi-stage control: Manage up to 8 stages of equipment independently, allowing for customized temperature profiles and energy-efficient operation.
Flexible programming: Create custom temperature schedules for different times of the day or week, ensuring optimal conditions for crop growth or livestock comfort.

Part No. 4801-5043 Rev 7/00 Owners Manual Farm Hand ST

Farm Hand ST

Temperature Controllers

Hired Hand, Inc.

1733 Co Rd 68

PO Box 99

Bremen, AL 35033

Part No. 4801-5043 Rev 7/00 Table of Contents Farm Hand ST

Table of Contents

1. Ratings and specifications ...................................................................................................................... 2

2. Warnings................................................................................................................................................. 2

3. Limited Warranty ................................................................................................................................... 2

4. Install...................................................................................................................................................... 3

4.1 Unpacking Components.................................................................................................................. 3

4.2 Installation Instructions................................................................................................................... 3

4.3 Checklist for Setting Up Control of House Temperature................................................................ 3

5. Wire Stages............................................................................................................................................. 4

5.1 Illustration Of Farm Hand 4-ST Stages.......................................................................................... 4

5.2 Illustration of Farm Hand 8-S......................................................................................................... 4

5.3 Illustration of Farm Hand 8-ST Stages........................................................................................... 4

6. Adjust Switches...................................................................................................................................... 5

6.1 Switch Locations ............................................................................................................................ 5

6.2 Farm Hand 4-ST Switch Settings ................................................................................................... 5

6.3 Farm Hand 8-ST Switch Settings ................................................................................................... 6

7. Apply Power........................................................................................................................................... 7

8. Day to Day Operating Instructions......................................................................................................... 7

8.1 Toggle Sequence of Mode Button .................................................................................................. 8

8.2 Checking/Adjusting Temperatures, and Timer Percentages........................................................... 8

8.3 Normal Mode Parameters............................................................................................................... 8

9. Set Target................................................................................................................................................ 9

10. Program Mode Parameters.................................................................................................................. 9

10.1 Set Heat Off Point......................................................................................................................... 10

10.2 Mister Timer Setup....................................................................................................................... 10

11. Set Timer Percentage........................................................................................................................ 10

11.1 Minimum Ventilation Timer Percentage ...................................................................................... 10

11.2 Mister Stage Timer Percentage..................................................................................................... 11

12. Set On Points .................................................................................................................................... 11

12.1 On Point Protocols........................................................................................................................ 11

12.2 Instructions for Setting On Points................................................................................................. 11

13. Calibrate Sensors.............................................................................................................................. 14

13.1 Calibration.................................................................................................................................... 14

14. Wiring Diagrams .............................................................................................................................. 15

14.1 Connecting ST To Relay Panel..................................................................................................... 16

14.2 Connecting Equipment Directly To a 4 ST................................................................................... 17

14.3 Connecting Stages to a Farm Hand 8 ST...................................................................................... 18

14.4 Sensor Wiring............................................................................................................................... 19

14.5 Wiring the Power Cord................................................................................................................. 20

15. References ........................................................................................................................................ 21

16. Error Codes....................................................................................................................................... 22

17. Temperature vs. Sensor Resistance Table ........................................................................................ 23

18. Programming Label.......................................................................................................................... 24

19. Program Data Sheet.......................................................................................................................... 25

20. Curtain Movement Time (sec.) Vs. Distance (Inches/cm.)............................................................... 26

Part No. 4801-5043 Rev 7/00 Farm Hand ST 2

1. Ratings and specifications

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

• 50/60 Hz.

• 12 Amps per stage.

• Room must be kept above 32°F/0°C.

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

manufacturers 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. 4801-5043 Rev 7/00 Farm Hand ST 3

4. Install

4.1 Unpacking Components

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

1 Farm Hand “ST” Temperature Controller

1 Installation Kit

1 Temperature Sensors

1 Manual

4.2 Installation Instructions

1. Hang Farm Hand “ST” 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. Open the Farm Hand “ST” and locate sensor connections. Refer to Wiring Diagrams,

Schematics, etc.

4. 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 Section 2.

6. Connect wires from stage terminals to a relay box or directly to equipment. See Sections 11.3

and 11.4.

7. RECHECK THE POSITION OF THE VOLTAGE SELECTOR SWITCH. Connect the wires

for 115v/230v power to the terminals specified in the Wiring Diagram.

8. Close the Farm Hand “ST” and tighten the two screws in the lid to secure the unit shut.

4.3 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 “ST” 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 1, Install

Refer to Section 2, Wire Stages

Refer to Section 3, Adjust Switches

2. Set internal switches according to your

requirements and line power. Make sure to set

voltage switch to 115v or 230v whichever is

required. Set Heat/Cooling Stage options.

Refer to Section 3, Adjust Switches

Refer to Section 2, Wire Stages

3. Install power to controller. Refer to Section 4, Apply Power

4. Set Target Temperature. Refer to Section 6, Set Target

5. Set On Point and Timer Percentage Setting Of

Stage 1.

Refer to Section 8, Set Timer

Percentage

Refer to Section 9, Set On Points

6. Set On Points Of Other Stages. Refer to Section 9, Set On Points

7. Calibrate Sensors. Refer to Section 10, Calibrate

Sensors

Tools Required:

Mini Screwdriver

Wire Strippers

Standard Screwdriver

Part No. 4801-5043 Rev 7/00 Farm Hand ST 4

5. Wire Stages

Note: Refer to Wiring Diagrams in the back of this manual.

5.1 Illustration Of Farm Hand 4-ST Stages

The Farm Hand 4-ST controls four stages. Stage 1 controls cooling and ventilation. (Refer to

Section 8, Set Timer Percentage). Stages 2 and 3 control cooling only. Stage 4 can be used to

control cooling or heat. (Refer to Section 3, Adjust Settings).

5.2 Illustration of Farm Hand 8-S

5.3 Illustration of Farm Hand 8-ST Stages

The On Point settings of the Farm Hand 8-ST are programmed similarly to the Farm Hand 4-ST.

Stages 7 and 8 can be used to control either cooling or heat.

Stage 1

Cooling/Ventilation

(Timed Cycle)

Stage 2

Cooling Stage 3

Cooling

Stage 4

Heat

(Optional)

Stage 4

Cooling

(Optional)

Power Cord

The Farm Hand 4-ST outputs are shown. Stage 1 has a

timed cycle. Stages 2 and 3 are cooling stages only. Stage

4 is an optional heat or cooling stage.

Stage 2

Cool

Stage 1

Cooling/Ventilation

Timed Cycle Stage 3

Cool

Stage 4

Cool

Stage 5

Cool

Stage 6

Cool

Stage 7

Heat or Cooling

Stage 8

Heat or Cooling

Stages 7 and 8 have

Heat or Cooling

Options.

Power Cord

Part No. 4801-5043 Rev 7/00 Farm Hand ST 5

6. Adjust Switches

6.1 Switch Locations

6.2 Farm Hand 4-ST Switch Settings

Table 1. Farm Hand 4-ST DIP Switch Options

SWX1-Fahrenheit/Celsius

This switch toggles between Fahrenheit and Celsius operation. If the switch is

set to ON, the controller will display the temperature as Fahrenheit. If the

switch is set to OFF, the controller will display the temperature as Celsius.

(Note: If you change the switch, you will have to reset your Target

Temperature).

SWX2-5/10 Minute Timer

This switch selects between a 5 and 10 minute system timer. If the switch is

ON, then the timer is set for 10 minutes. If the the switch is set in the OFF

position, then the timer is set for 5 minutes.

SWX3-Heat/Cool Stage 4 Option

This switch selects the heat or cool option for stage 4. If the switch is set to

ON then stage 4 is programmed to control heat. If this switch is set to OFF,

then stage 4 is programmed to control cooling.

SWX4-One /Two Sensor Option

This switch selects either one or two sensors. If the switch is in the ON

position then the average temperature of Sensor 1 and Sensor 2 is used as

Switch Numbers

Switch

Position 1 2 3

(Stage 4) 4

ON Fahrenheit (°F) 10 min. cycle Heat 2 Sensors

OFF Celsius (°C) 5 min. cycle Cool 1 Sensor

OFF

SWX1

SWX2

1 2 3 4

115v

230v

SWX5

SWX1,2,3,4

4801-5043 Rev 7/00 Farm Hand ST 6

reference and displayed as Room Temp. If the switch is in the OFF position

then Sensor 1 is selected as the reference and displayed as the Room Temp.

SWX5-115/230v Switch

This switch selects the line voltage. The voltage positions are labeled on the

switch. IMPORTANT: THIS SWITCH MUST BE SET TO THE

CORRECT POSITION BEFORE PLUGGING THE UNIT INTO

POWER SOURCE.

6.3 Farm Hand 8-ST Switch Settings

Note: The SWX1 and SWX2 operate individually.

The SWX3 and SWX4 switches operate in combination as shown in Table 2.

Table 2. Farm Hand 8-ST Summary Of DIP Switch Options

SWX1-Fahrenheit/Celsius

This switch toggles between Fahrenheit and Celsius operation. If the switch is

set to ON, the controller will display the temperature as Fahrenheit. If the

switch is set in the OFF position, °C is selected as display units. (Note: If

you change the switch, you will have to reset your Target Temperature).

SWX2-5/10 Minute Timer

This switch selects between a 5 and 10 minute system timer. If the switch is

ON, then the timer is set for 10 minutes. If the switch is set in the OFF

position, then the timer is set for 5 minutes.

SWX3-and SWX4 Stage 7 and 8 Heat/Cool Options

SWX3 and SWX4 operate in combination and affect Stages 7 and 8 as given

in Table 2. If SWX3 is ON and SWX4 is OFF, then Stage 8 is set for Heat. If

switch 3 is ON and switch 4 is ON, then Stages 7 and 8 are both set for Heat.

If SWX3 is OFF and SWX4 is either ON or OFF, then Stages 7 and 8 are both

set for Cooling.

SWX5-115/230v Switch

This switch selects the line voltage. The voltage positions are labeled on the

switch. IMPORTANT: THIS SWITCH MUST BE SET TO THE

CORRECT POSITION BEFORE PLUGGING THE UNIT INTO

POWER SOURCE.

Switch Numbers

Switch

Position 1 2 3 4

ON Fahrenheit 10 min. cycle

OFF Celsius 5 min. cycle

3 ON and 4 OFF = Stage 7 Cooling

Stage 8 Heating

3 ON and 4 ON = Stage 7 Heating

Stage 8 Heating

3 OFF and 4 ON or OFF =Stage 7 Cooling

Stage 8 Cooling

4801-5043 Rev 7/00 Farm Hand ST 7

7. Apply Power

Connect the electrical wires to the controller as shown. (Note: Refer to Wiring Diagrams in the

back of this manual). After setting the SWX5 switch to the correct voltage, turn on the electrical

power.

8. Day to Day Operating Instructions

This section of the manual will give you all you need to know about the day to day operation of

your controller.

The Farm Hand “ST” is an easy-to-use temperature controller that utilizes a facepad with three

control buttons, four LED (Light Emitting Diode) Display Indicators, and LED Stage Indicators.

The Mode button selects one of four parameters (Room Temperature, Target Temperature, Timer

Percentage, On Point). As the Mode button is pressed, an LED indicator lights, and the numerical

value of a selected parameter is displayed in the Main Display. The Target Temperature, Timer

Percentage, and On Point may be changed by using the + or - buttons. The Mode button

sequentially toggles through the parameters as shown by the flow chart on the next page.

Display Indicators

Control Buttons

Mode, +, and -

Main Display

Stage Indicators

Note: The Farm

Hand 8-ST has

eight indicator

LED’s.

Note: Farm Hand 8

ST (not shown)

has eight stages

1 2 3 4

4801-5043 Rev 7/00 Farm Hand ST 8

8.1 Toggle Sequence of Mode Button

8.2 Checking/Adjusting Temperatures, and Timer Percentages

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.”, “Target Temp.”,

“Timer Percentage”, and “On Point” 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.

8.3 Normal Mode Parameters

Room Temperature

The average of the sensors located inside the house.

Target Temperature

The temperature inside the house which the controller will maintain by

automatically controlling cooling and heat stages.

Minimum Timer Percentage

Only Stage 1 is used for minimum ventilation output on the Farm Hand “ST”

controllers. This is the percentage of the timer cycle that Stage 1 will run on a

timer. For example, if this is set for 30, and your timer period is set to 10

minutes, the timed stage 1 output will run for 3 minutes out of every ten minutes

(i.e. 30% of the total cycle time). The Stage 1 indicator blinks while the timed

percentage output is active. Note: If no minimum ventilation output is

required for Stage 1, set the Timer % to zero (0).

Mister Timer Percentage

Note: This setting is not displayed if the Mister is Disabled (P6 = Off). This

timer controls the % run time of the final cooling stage (or “Mister stage”) of

any Farm Hand ST setup. The settings and operation of this parameter are

explained in Sections 7.1, 7.2, and 8.2. This parameter is active only if the

temperature reaches the On Point of the Mister stage.

On Point

The temperature at which each Stage becomes active. (i.e. The set point

temperature at which a start signal is transmitted). Important: ST Stages 1-6 .

are cooling stages and have set points which are greater than the target

temperature. Stage 4 of the 4-ST and stages 7,8 of the 8-ST can be used as

either cooling or a heat.

Room Temp.

Target Temp.

Timer

Percentage

Stage 1On Point

Stage 2

Stage N

Stage N-1

For Farm Hand 4-ST

N = 4

For Farm Hand 8-ST

N = 8

4801-5043 Rev 7/00 Farm Hand ST 9

9. Set Target

The target temperature is the temperature required inside the house. This setting is the

temperature that the controller will maintain. The target temperature is normally reset at different

stages of growth. Setting the correct target temperature is the responsibility of the farm manager.

10. 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. For

the Farm Hand “ST” this is mainly limited to Sensor Calibration and heater Off Point options.

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 “P5” and the value of this

parameter.

The “P5” 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 “ST” are shown in Table 3.

Table 3. Program Mode Parameters

The target temperature is changed in increments of

±0.5° using + and – buttons.

After adjusting the target temperature, toggle to the next

function by pressing the Mode button, or wait and the

controller will automatically return to the Room Temp.

parameter.

1.1 Paramet

er 1.2 Description

1.3 P5 This setting is the Heat Shut Off temperature.

1.4 P6 This setting Enables or Disables the Mister Timer for the Last Cooling Stage.

OFF - Stage operates as standard ON/OFF stage.

ON - Stage operates as a Mister Timer (Refer to Section 7.2).

1.5 P7 This setting is the Mister Timer Cycle in minutes. (Refer to section 7.2).

1.6 P41 This is the software version number. Not Changeable.

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

P51

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 P51 selected, use the + and – buttons to set the calibration temperature to

the thermometer reading.

1.8 P52 This is the calibration temperature for Sensor 2.

Instructions: Same as Sensor 1 except substitute P52 for P51 in the instructions above.

4801-5043 Rev 7/00 Farm Hand ST 10

10.1 Set Heat Off Point

The Heat Off Point sets the temperature at which a heat stage shuts off. For 4-ST, the

Heat Off Point applies to Stage 4, if stage 4 is used as a heat stage. For 8-ST, the Heat

Off Point applies to Stage 8 if this is the only heat stage, or to Stage 7 if Stages 7 and 8

are both used as heat stages. (See Example 4 for stages 7 and 8 both set as heating).

The Heat Off Point is the value of P5. Follow instructions in Section 7 for setting

parameter P5. The Heat Off Point should be set less than the Target temperature. If all

stages are used as cooling, then no Heat Off Point is required

10.2 Mister Timer Setup

The purpose of the Mister Timer is to provide a timed ON/OFF cooling stage. The

Mister Timer is turned On or OFF by setting the program mode parameter P6 (See

Section 7.1, Table 3). The Mister Timer cycle is set by the program mode parameter P7

(See Section 7.1, Table 3). Note: The Mister Timer applies only to the final cooling

stage of any Farm Hand ST setup. If the parameter P6 is set ON, then the Farm Hand

ST will automatically select the stage to be used as the Mister Stage, depending on how

the Cool/Heat options are set. Table 4 summarizes the Mister stage options.

Table 4. Mister Options

To Turn the Mister stage option On or OFF:

1. Press and hold the “Mode” button for 5 seconds to enter the Program Mode.

2. Toggle to the P6 parameter by pressing the “Mode” button.

3. Press + or – to turn P6 On/OFF. Note: ON or OFF will be displayed in the Main display.

4. Wait for the controller to return to the Normal Mode.

(See Section 8.2 for setting the Mister Timer percentage, program mode parameter

P7).

11. Set Timer Percentage

11.1 Minimum Ventilation Timer Percentage

The Farm Hand “ST” is equipped to satisfy any of your minimum ventilation needs. This

is accomplished by the Timer Percentage parameter. Stage 1 is automatically setup as

the minimum ventilation stage.

The Timer Percentage is the percentage of time that the

ventilation operates during a timer cycle. (Note: The Timer

Cycle can be set for either 5 minutes or 10 minutes. See

Section 3, Adjust Switches).

Mister Stage Options

Farm Hand 4-ST

P6 Setting (Table 3) Stage 4 setting Mister Stage

ON Heating Stage 3

ON Cooling Stage 4

OFF No Mister Stage is selected

Farm Hand 8-ST

P6 Setting (Table 3) Stage 7 setting Stage 8 setting Mister Stage

ON Heating Heating Stage 6

ON Cooling Heating Stage 7

ON Cooling Cooling Stage 8

OFF No Mister Stage is selected

4801-5043 Rev 7/00 Farm Hand ST 11

To set the Timer Percentage:

1. Depress the Mode button until the Timer Percentage LED is lit. (The Stage 1 LED will

also be lit).

2. Press the + or – buttons to set the Timer Percentage to the desired value.

Note: The Timer Percentage values change in increments of ±5 (i.e. 5, 10, 15…).

3. The controller will return to the Room Temp. parameter after 10 seconds.

Example: If the Timer Percentage is set at 15 and the Timer Cycle is 10 minutes, then

the cooling will operate for 1 ½ minutes during the 10 min. cycle (i.e. 15% of the total

cycle). Note: Stage 1 indicator blinks while timer percentage output is active.

Example: If the Timer Percentage is set at 25 and the Timer Cycle is 5 minutes, then the

cooling will operate for 1 ¼ minutes (1 minute 15 seconds) during the cycle (i.e. 25% of

the total cycle).

11.2 Mister Stage Timer Percentage

Note: If the Mister Timer (P6) is disabled, then this setting will not be seen.

The Mister Timer can handle any of your Evaporative cooling needs. Important: The

Mister Timer does not turn on unless the temperature reaches the OnPoint of the

final cooling stage.

To set the Mister Timer Percentage:

1. Follow instructions in Section 7.2 to enable the Mister Timer. (Set P6 to ON).

2. With the Farm Hand ST in the Program Mode, press the “Mode” button to toggle to P7.

3. Press the + and – buttons to set the total cycle time (in minutes) of the Mister Timer.

This may be set from 2 minutes to 30 minutes.

4. To set the Run Time Percentage of the Mister stage, wait for the Farm Hand ST to return

to the Normal Mode.

5. With the Farm Hand ST in the Normal Mode and after setting the cycle time, toggle the

“Mode” button until the Timer Percentage LED is lit. The Stage 1 LED will also be lit to

allow changing the Timer percentage of stage 1 (See Section 8.1). Press the “Mode”

button

again to toggle to the Mister stage. (Note: If this is done correctly, the Timer Percentage

LED and the Mister Stage LED will now be lit).

6. Press the + or – button to select the % run time of the Mister Stage. Example: If the cycle

time is set to 5 minutes in step 3, and the % run time is set to 20%, then the Mister stage

will run for 1 minute during each 5 minute cycle, if the temperature is greater than the

stage’s OnPoint.

7. Setting complete.

12. Set On Points

12.1 On Point Protocols

The On Point settings determine the temperatures at which each stage turns on. The

following rules are observed when setting the On Points. The temperature controller

circuitry will automatically limit settings according to these rules, so you do not

have to remember these rules when setting On Points.

§ The On Point settings of ST Cooling Stages will always be greater than the Target

Temperature.

§ The On Point settings of all Cooling Stages increase from the Stage 1 setting.

§ The On Points of all Heat Stages will be less than the Target Temperature.

12.2 Instructions for Setting On Points

1. Press the Mode button to select stage number indicator of stage to be set.

2. Press the + and – buttons to set the On Point to the desired temperature.

3. Repeat steps 1 and 2 until all On Points have been set.

To help understand On Point settings, please read the following examples.

4801-5043 Rev 7/00 Farm Hand ST 12

Farm Hand 4-ST Example 1: All stages used as cooling with Mister ON (Refer to Graph 1).

For example, a farm manager determines that the target temperature should be 72°F. The target

temperature is set to 72°F according to the instructions in Section 6. The On Point of stage 1 is set

at 74°F. The timer percentage of stage 1 is set to 50% using the instructions of Section 8. The

manager then sets the On Point of stage 2 to 76°F, and the On Point of stage 3 to 78°F. In this

example stage 4 is used as cooling, and the On Point of stage 4 is set to 80°F. The Mister option is

set to ON and the run time is set to 40% using program parameters P6 and P7 (See Section 7.1,

Section 7.2).

Farm Hand 4-ST Example 2: Stage 4 used as heating. Mister OFF. (Refer to Graph 2).

A farm manager decides to reset the controller to allow heating if the house becomes to cool. The

farm manager also wants to protect against overheating inside the house. As in example 1 the

controller is set to a target temperature of 72°F. The On Points of stages 1,2, and 3 are set to the

same settings as in example 1 to protect against overheating. Stage 4 is reset for heating (See

Section 3, Adjust Switches). The On Point of stage 4 is set to 69°F. The heat will start at this On

Point temperature. Program mode parameter “P5” is set for 70°F. (Setting “P5” is discussed in

Section 7, Set Heat Off Points). The heat will shut off when the temperature reaches 70°F.

Farm Hand 4-ST

64 66 68 70 72 74 76 78 80 82 84

Degrees (Fahrenheit)

Stage 4

Stage 3

Stage 2

Stage 1

Stage 2

Stage 3

Stage 4

50%

All Stages Cooling

Timer % = 50%

Target = 72

Off Point

On Point

***

(Stage 1 Timer = 50%)

GRAPH 1

Stage On

Point Off

Point

1 74°F Target Temp.

2 76°F On Point Stage 1

3 78°F On Point Stage 2

4 80°F On Point Stage 3

GRAPH 2

Stage On

Point Off

Point

1 74°F Target Temp.

2 76°F On Point Stage 1

3 78°F On Point Stage 2

4 69°F P5 Shut Off

Important: The Off Point of a Cooling

stage N + 1 is automatically set the

same as the On Point temperature of

stage N. For Stage 1 the Off Point is

the Target Temperature.

Stage 4

Mister Run Time 40%

Farm Hand 4-ST

64 66 68 70 72 74 76 78 80 82 84

Degrees (Fahrenheit)

Stage 4

Stage 3

Stage 2

Stage 1

Stage 2

Stage 3

Stage 4

50%

Stage 1 Timer % = 50%

Stages 1,2,3 Cooling Target = 72

Stage 4 Heating

Off Point

On Point *

***

Target = 72

P5 = 70

4801-5043 Rev 7/00 Farm Hand ST 13

Farm Hand 8-ST Example 3: Stage7 used as cooling with Mister ON and Stage 8 used as

heating (Refer to Graph 3).

A farm manager decides to set up a house using all eight stages of model 8-ST. The temperature

display was set for degrees Fahrenheit (°F) during installation using SWX1. The target

temperature is set for 68°F. The timer percentage on stage 1 is set to 50 using the procedure as in

the previous examples. Stages 1 through 7 are set for cooling with the following On Points: stage

1 = 70°F, stage 2 = 72°F, stage 3 = 74°F, stage 4 = 76°F, stage 5 = 78°F, stage 6 = 80°F, and

stage 7 to 82°F. The Mister is set to ON and the Mister run time is set to 40% (See Section 7.1

and 7.2). During installation stage 8 was set for heating using SWX3. Stage 8 On Point is set for

65°F. The Program Mode parameter “P5” is set for 66°C. The heating shuts off when the

temperature rises to 66°F.

Farm Hand ST-8 Example 4, Stages 7 and 8 Both Heating. Mister OFF. (Refer to Graph 4).

In this example stages 7 and 8 are both set for heat. (Refer to Section 3, Adjust Switches). The

target temperature is set for 72°F. Stage 1 timer percentage is set for 50% for ventilation. Stage

1 On Point is set for 74°F, Stage 2 On Point 76°F, Stage 3 On Point 78°F, Stage 4 On Point 80°F,

Stage 5 On Point 82°F, Stage 6 On Point 84°F, Stage 7 On Point is set for 69°F, and Stage 8 On

Point is set for 67°F. P5 is set for 70°F. The cooling stages operate as in the other examples.

Heating starts when the temperature drops to 69°F as Stage 7. If the temperature drops to 67°F,

then Stage 8 heating starts. Stage 8 turns off when the temperature rises back to stage 7 On Point

of 69°F. Stage 7 shuts off at the P5 Off Point of 70°F.

Farm Hand 8-ST

Degrees (Fahrenheit)

Stage 8

Stage 7

Stage 6

Stage 5

Stage 4

Stage 3

Stage 2

Stage 1

64 66 68 70 72 74 76 78 80 82

Stage 1 Timer % = 50%

Stage 7 Cooling

Stage

8 Heating

Target = 68 F

P5 = 66 F

****

***

Off Points

On Points *

Stage 8

Stage 6

Stage 4

Stage 2

Stage 1

Stage 3

Stage 5

Stage 7

Farm Hand 8-ST

Degrees (Fahrenheit)

Stage 8

Stage 7

Stage 6

Stage 5

Stage 4

Stage 3

Stage 2

Stage 1

66 68 70 72 74 76 78 80 82 84 86

Stage 1 Timer % = 50%

Stages 1,2,3,4,5,6 Cooling

Stages 7,8 Heating

Target = 72

P5 = 70

** * * * * * *Off Points

On Points *

Stage 8

Stage 7

Stage 6

Stage 5

Stage 4

Stage 3

Stage 2

Stage 1

Stage On

Point Off

Point

1 70°F Target Temp.

2 72°F On Point Stage 1

3 74°F On Point Stage 2

4 76°F On Point Stage 3

5 78°F On Point Stage 4

6 80°F On Point Stage 5

7 82°F On Point Stage 6

8 65°F P5 Shut Off

Stage On

Point Off

Point

1 74°F Target Temp.

2 76°F On Point Stage 1

3 78°F On Point Stage 2

4 80°F On Point Stage 3

5 82°F On Point Stage 4

6 84°F On Point Stage 5

7 69°F P5 Shut Off

8 68°F On Point Stage 7

GRAPH 3

Important: The Heating

Off Point of

Stage 8 is automatically set the same

as the Heating On Point of Stage 7.

The Heating Off Point of Stage 7 is

parameter P5.

GRAPH 4

Stage 7

Mister Run Time 40%

4801-5043 Rev 7/00 Farm Hand ST 14

13. Calibrate Sensors

13.1 Calibration

1. 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.

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

for the temperature to stabilize.

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

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

4801-5043 Rev 7/00 Farm Hand ST 15

14. Wiring Diagrams

All wiring connections for stages, inside the controller are made without terminals on the end of

the wire. To make the connection, strip about ¼” of the insulation off the wire, and follow the

diagram below.

1. Insert a small screwdriver into either the hole shown in the diagram.

2. Insert the stripped end of the wire into the hole shown in the diagram.

3. Remove the screwdriver, and tug slightly on the wire to check that it is snug.

Before connecting power to the machine, be sure to check the position of the

voltage selector switch located next to the transformer on the relay board.

Improper positioning of this switch will cause system failure.

Warning!

Do not connect more than twelve (12) amps of load to any one stage.

Warning!

4801-5043 Rev 7/00 Farm Hand ST 16

14.1 Connecting ST To Relay Panel

AC Power Stage 1 Stage 2 Stage 3 Stage 4

IN OUT IN OUT IN OUT IN OUT

Sensor 1 Sensor 2

Blk Wht Shld Wht Blk

Temp. Sensors

Stage 3

Inset 1

Stage 2

Stage 1

Stage 4

Stage

Common

Relay

Panel

4801-5043 Rev 7/00 Farm Hand ST 17

14.2 Connecting Equipment Directly To a 4 ST

AC Power Stage 1 Stage 2 Stage 3 Stage 4

IN OUT IN OUT IN OUT IN OUT

Sensor 1 Sensor 2

Blk Wht Shld Wht Blk

Temp. Sensors

Inset 1

Hot

Warning!

Warning: Do not connect more than 12 amps of load to a single stage!

Note: Hired-Hand, Inc. recommends the use of an external contact or relay

panel to drive equipment to guarantee longer life of the controller.

Inset 1

Neutral

Hot

Neutral

Breaker

Panel

Cooling Heat

4801-5043 Rev 7/00 Farm Hand ST 18

14.3 Connecting Stages to a Farm Hand 8 ST

Stage 8

Stage 7

Com

Stage 2

Stage 1

Com

INSET 1

INSET 2

INSET 1

INSET 2

Hot

Neutral

Hot

Breaker

Panel

Cooling Heating

Note: Hired-Hand, Inc. recommends the use of an external contact or relay

panel to drive equipment to guarantee longer life of the controller.

Warning!

Warning: Do not connect more than 12 amps of load to a single stage!

4801-5043 Rev 7/00 Farm Hand ST 19

14.4 Sensor Wiring

Important!

Shield Wire is not required. Care should be taken to insure that bare shield

wires do not touch electronic components.

Wht

Blk

Shld

Blk

Wht

Shld

Sensor 2

Sensor 1

Temp. Sensors

Sensor 1 Sensor 2

Blk Wht Shld Wht Blk

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Cumberland 4801-5043 Farm Hand ST7-00 Owner's manual

Brand: Cumberland

Model: 4801-5043 Farm Hand ST7-00

Type: Owner's manual

Key features of the Cumberland 4801-5043 Farm Hand ST7-00 include:

Multi-stage control: Manage up to 8 stages of equipment independently, allowing for customized temperature profiles and energy-efficient operation.
Flexible programming: Create custom temperature schedules for different times of the day or week, ensuring optimal conditions for crop growth or livestock comfort.

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Cumberland 4801-5043 Farm Hand ST7-00 Owner's manual

Cumberland 4801-5043 Farm Hand ST7-00 Owner's manual

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