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Northern Lights Cool Touch Operator's Manual

2.5” color tft touch screen controller for fx-1 & fx-2 control boards
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OPERATOR'S MANUAL
Cool Touch
2.5" Color TFT Touch Screen Controller
for FX-1 & FX-2 Control Boards

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Summary of Contents for Northern Lights Cool Touch

  • Page 1 OPERATOR’S MANUAL Cool Touch 2.5” Color TFT Touch Screen Controller for FX-1 & FX-2 Control Boards...
  • Page 2 1419 W Newport Center Drive Deerfield Beach, FL 33442 Tel: (954) 421-1717 Fax: (954) 421-1712 S144 7/21 Copyright ©2021 Northern Lights, Inc. All Rights Reserved. Northern Lights, Technicold, the Northern Lights logo and the Technicold logo are registered trademarks of Northern Lights, Inc.

  • Page 3: Table Of Contents

    3.3 Control Boards and Options Supported by Cool Touch 4. OVERVIEW 4.1 Cool Touch Home & Main Screen Displays 4.2 Cool Touch Power-Up & Default Sleep Mode Screen Display 5. INSTALLING THE DISPLAY PANEL 5.1 Choosing the Location 5.2 Installing the Battery (for older Cool Touch models only) 5.3 Mounting the Display...
  • Page 4 15.1 Firmware Version 15.2 Display Setup 15.3 Sleep Mode Settings 15.4 Display Lock 15.5 Cleaning Mode 15.6 Wi-Fi Settings (optional Cool Touch feature) 16. TROUBLESHOOT & COMMISSION MENU 16.1 System Status 16.2 Help & Information 16.3 Commission Procedure 17. FAULT HISTORY & RUN HOURS MENU 17.1 Fault History...

  • Page 5: Introduction

    2. READ THIS MANUAL BEFORE PROCEEDING Read this manual completely before you proceed with the installation and operation of the Cool Touch. If you have questions or require assistance with your Cool Touch control, contact Northern Lights at +1 (800) 762-0165.

  • Page 6: Control Boards And Options Supported By Cool Touch

    3.3 Control Boards and Options Supported by Cool Touch The Cool Touch has evolved and supports all of the features available in the original FX1 and in the newest FX2 Control Boards. Please refer to the following chart for the minimum required firmware versions for the Cool Touch to support the control features required.

  • Page 7: Overview

    4.1 Cool Touch Home & Main Screen Displays The Cool Touch Home screen shown in Figure 1 consists of large, easy to read graphics, with large buttons for basic control functions. The Main screen shown in Figure 2 consists of smaller graphics showing all of the control readouts and statuses, and had more buttons for all of the control functions.

  • Page 8: Mounting The Display

    IMPORTANT: Do not mount the display in direct sunlight, near any heat-producing appliances or in a bulkhead where temperatures radiating from behind the panel may affect performance. Do not mount the display in the supply-air stream. Do not mount the display above or below or a supply-air or return-air grille. Do not mount the display behind a door, in a corner, under a stairwell or any place where there is no freely circulating air.

  • Page 9: Installing The Optional Sensors

    6.4 Water Inlet Temperature Sensor (for CW systems only) When using the Cool Touch with a chilled-water air handler, plug the water-inlet sensor cable into the “OAT/H20” jack on FX1 or into the “OUTSIDE / RH” jack on FX2/. Attach the sensor securely...

  • Page 10: Combination Temp/Humidity Sensors (For Cw & Fx2 Systems Only)

    7.1 Reversing Valve Operation (for DX systems only) The position of the reversing valve determines if the system is in Cool Mode or Heat Mode. The Cool Touch and FX1/FX2 systems are designed to energize the reversing valve output when in HeatMode. In addition, the reversing valve will toggle into the opposite position for 2 seconds to equalize the system pressure and reduce the compressor’s starting surge whenever a cooling or heating cycle is called for and the system has been off for...

  • Page 11: Standard Operation

    STANDARD OPERATION 8.1 Operator Controls and Display 8.1.1 Home Screen Indicators & Buttons Figure 7 - Home Screen Icons & Functions 1. Force Sleep Mode Button Press and release force Sleep Mode to initiate immediately, if enabled. See section 15.3 for more information on Sleep Mode.

  • Page 12: Modes Of Operation

    8.1.2 Main Screen Indicators & Buttons Figure 8 - Main Screen Icons & Functions 1. Mode Button The Mode button indicates the currently active mode of operation. Press and release to step through the four available operting modes: COOL, HEAT, AUTO, and MOISTURE. See section 8.2 for more information on all the modes of operation.
  • Page 13 10. Power On/Off Button Press and release to toggle between the ON (green) and OFF (red) operation. 11. Date & Time Display The date and time are displayed here, if enabled. See section 14 for information on how to set the date & time, change formats, and enable or disable the display.

  • Page 14: Fan Speed Modes

    MOISTURE Mode is enabled as indicated by the Mode Button Icon, the fan circulates the air for 30 minutes. During this time, the air temperature is sampled and entered into memory. After 30 minutes, a cooling cycle starts and continues until the temperature is lowered 2°F (or 1.0°C) or until the cooling cycle runs a maximum of one hour. Four hours after the temperature is satisfied or the cooling cycle times out, this cycle repeats.

  • Page 15: Fresh Air Makeup (Famu) Operation

    9. FRESH AIR MAKEUP (FAMU) OPERATION A Fresh Air Makeup (FAMU) system is meant to draw in and condition outside air and drive it into the interior cabin areas. The air drawn in from the outside is considered the “intake”, and the air discharged into the cabin is considered the “exhaust”.

  • Page 16: Famu Operator Controls And Display

    9.1 FAMU Operator Controls and Display Figure 10 - FAMU Screen Icons & Functions 1. Power On/Off Button Press and release to toggle between the ON (green) and OFF (red) operation. 2. Fan Button The Fan button i sused to control the fan speed. The Fan button will rotate when the fan is on, and will be stationary when the fan is off.

  • Page 17: Famu Sequence Of Operation

    9.2 FAMU Sequence of Operation A general overview of the FAMU DX Sequence of Operation is shown in Figure 11, and a general overview of the FAMU CW Sequence of Operation is shown in Figure 12.

  • Page 19: Famu Settings & Recommendations

    9.3 FAMU Settings & Recommendations FAMU operation requires 3 important settings to insure proper operation of the system. Careful consideration is recommended for each setting as described in detail below. 9.3.1 Exhaust Temperature Set Point ( Factory default: 70°F/21°C) This parameter sets the desired exhaust air temperature set point. The CoolTouch will apply the necessary cooling and/or heating to attain this exhaust temperature within 2°F/1°C.

  • Page 20: Air Sensor Fault (Dx & Cw, Immediate Lockout)

    10.1 Air Sensor Fault (DX & CW, immediate lockout) Main Screen Display: “FAULT SENSOR” Status Screen Display: “FAULT INSIDE SENSOR” Fault History Display: “SENSOR IN” The CoolTouch can utilize one of 3 different temperature sensors for its Inside Temperature display and use for control purposes: •...

  • Page 21: Low Ac Fault (Dx & Famu Dx Only, No Lockout)

    1. If the low pressure switch is open while the compressor is off, the most likely cause is loss of refrigerant charge in the system due to a leak. 2. If the low pressure switch is open while the compressor is operating in COOL mode, the most likely causes are low refrigerant charge or cold seawater.

  • Page 22: Menu And Settings Overview

    10.9 EasyStart Fault (DX & FAMU only, contributes to lockout count) Main Screen Display: “FAULT EASYSTR” FAMU Screen Display: “FAULT EASYSTART” Status Screen Display: “FAULT EASYSTART” Fault History Display: “EASYSTART” The EasyStart Fault occurs whenever the CoolTouch daughterboard system detects a problem with the compressor during startup and during normal operation.

  • Page 23: Settings Screen

    1. Home - Press this button at any time to return to the Home Screen. 2. Back - Press this button to return to the previous screen. 3. Scroll Down - Press this button to go to the next page in the menu. 4.

  • Page 24: General Settings

    The Control Parameters Menu consists of 6 items on 2 pages as shown in Figure 17. Page 1 of the menu will differ depending on whether the system is configured for DX, CW, FAMU DX or FAMU CW operation. Please see section 12.1.1 for more information on the System Type Selection.
  • Page 25 Refer to Table 2 for a quick reference to the General Settings. Click the hyperlinks in the table to refer to the sections that follow providing further details on each setting.
  • Page 26 Table 2 - General Settings Parameters Factory Page Description Default Parameter Range DX/CW by Jumper / DX Over- ride / CW Override / FAMU by System Type Selection¹ DX/CW by Jumper Jumper / FAMU DX Override / FAMU CW Override Temperature Units Auto Auto / °F / °C...
  • Page 27 effect, and when the jumper is not cut, DX operation is in effect. If at any time the system type needs to set regardless of the state of the jumper, setting this parameter to “DX Override” or “CW Override” will force CoolTouch to use the corresponding system type.
  • Page 28 timer keeps track of the total amount of run hours that the fan accumulates. Once the reminder time has expired, a message will be displayed on the Main screen. System operation will continue normally without any interruption while this reminder is being displayed. The reminder can only be cleared and the timer reset via the Filter Hours Reset parameter.
  • Page 29 It is important to consider the size and the load of any electric heater, and it may be necessary to install an additional contactor that is rated to handle the full load of the electric heater. Please consult with Northern Lights Customer Service or with an authorized service technician for assistance.
  • Page 30 Table 3 - Automatic Fan Speed Temp Differential Example Fan Speed Inside Increasing Decreasing Temp Temp Temp SP+7 High High SP+6 High High SP+5 High High SP+4 High SP+3 SP+2 SP+1 Low/Off Low/Off Low/Off 12.1.18 Moisture Mode Heat Set Point (40-75°F / 5-25°C; 50°F/10°C) This parameter is the minimum inside temperature for which MOISTURE Mode will run a cooling cycle to remove moisture from the air.

  • Page 31: Fan Speed Settings

    12.2 Fan Speed Settings To access the Fan Speed Settings, go to Main Menu, select Control Parasmeters, and then select Fan Speed Settings. For a standard FX1 or FX2 control board, the Fan Speed Settings Menu consists of 3 items on 1 page as shown in Figure 20.
  • Page 32 Table 4 - Fan Speed Settings Factory Parameter Page Description Default Range Fan (A) Low Speed 30-75 Fan (A) Medium Speed 32-85 Fan (A) High Speed 35-95 Fan B Low Speed 30-75 Fan B Medium Speed 32-85 Fan B High Speed 35-95 Fan C Low Speed 30-75...

  • Page 33: Dx Operational Settings

    12.3 DX Operational Settings The DX Operational Settings menu is only available as an option in the Control Parameters menu when the DX System Type is selected in the System Type Selection parameter and/or enabled via the appropriate control board jumper. To access the DX Operational Settings, go to the Main Menu, select Control Parameters, and then select DX Operational Settings.
  • Page 34 12.3.1 Compressor Start Delay (5-135sec; 15 sec) The compressor start delay is used for installations where more than one system operates from the same power source. Setting different start delays allows compressors to start at different times when AC power is interrupted.
  • Page 35 12.3.4 De-Ice Cycle (Disabled/Enabled with 5°F/3°C Sensor Differential/Enabled with 7°F/4°C Sensor Differential; Disabled) The de-icing cycle prevents ice buildup on the evaporator coil during extended periods of cooling operation. Installation variables such as grille sizes, length of ducting, insulation, and ambient temperatures determine the runtime required to achieve set point.

  • Page 36: Cw Operational Settings

    If at any time the Low Pressure switch input needs to be disabled regardless of the state of the jumper, setting this parameter to “Disabled” will cause the input to always be ignored. Northern Lights does not recommend disabling the Low Pressure switch input on systems specifically designed to use Low Pressure switches as this can endanger the equipment under certain conditions.

  • Page 37: Famu Dx Operational Settings

    12.4.1 Water Valve Force Open (OFF/ON; OFF) This parameter opens the water valve to bleed air from the system. Setting this parameter to ON forces the valve to open for 4 hours. If the control is turned on or if AC power is interrupted during this 4-hour period, this valve override feature is canceled.
  • Page 38 Refer to Table 7 for a quick reference to the FAMU DX Operational Settings. Table 7 - FAMU DX Operational Settings Factory Page Description Parameter Range Default FAMU Temo Set Point 70°F/21°C 65-85°F or 18-30°C FAMU %RH Set Point 50% RH 35-80% RH Compressor Start Delay 15 sec...

  • Page 39: Famu Cw Operational Settings

    12.5.2 FAMU %RH (35-80% RH; 50% RH) This parameter assigns the set point relative humidity for the exhaust air exiting the FAMU unit. Please see section 9 for more information on FAMU system operation. For parameters 3 thru 9, refer to the detailed descriptions in section 12.3 DX Operational Settings. 12.6 FAMU CW Operational Settings The FAMU CW Operational Settings menu is only available as an option in the Control Parameters menu when the FAMU CW System Type is selected in the System Type Selection parameter and/or enabled via the...

  • Page 40: Recall Memorized Settings

    If you want all of the active and customized parameter settings to be saved as a set of memorized settings for possible recall at a later time, select the Memorize Settings option, and then press the SAVE button. This action memorizes the current parameter settings in non-volatile memory.

  • Page 41: Programming A Day Or Group Of Days

    The Schedule status display on the Main screen will indicate which day of the week and which program is currently in effect. For example, if the Schedule status displayed is “WED P1”, this indicates Program #1 for Wednesday is in effect. If the Program Scheduler is disabled, the Schedule Status always shows “MANUAL”. Lastly, if the set point temperature or operational modes are altered in anyway via user input while the Program Scheduler is operating, it will remain in effect until the beginning of the next Program number or Day of the Week.

  • Page 42: Date/Time Menu

    14. DATE/TIME MENU The Date/Time Menu allows the user to control the display of the date & time, change its format, and adjust its settings. To access the Date/Time Menu, go to the Main Menu and then select Date/Time Menu. The Date/Time Menu has 3 items on 1 page as shown in Figure 30.

  • Page 43: System Menu

    To edi a particular value, press the button corresponding to the value. After making the necessary adjustments in the edit screen, press the SAVE button. The day of the week will automatically be calculated based upon the set date. NOTE: If the CoolTouch battery is ever replaced or the rechargeable battery becomes fully discharged, the date &...

  • Page 44: Sleep Mode Settings

    Display Colors - The various portions of the display can have their colors changed. The color choice palettes displayed consist of 126 different colors shown across 14 pages. Pages 1-12 show color choices from a standard display colors used by factory default. Figure 36 shows an example of a color selection display screen. Figure 36 - Color Edit Screen Example 15.3 Sleep Mode Settings The Sleep Mode Settings menu allows control over all teh various Sleep Mode displays and its behavior.

  • Page 45: Display Lock

    Figure 38 - Sleep Mode Text Editor The active (last) character can be changed using the UP and DOWN buttons. The character choices are as follows: ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789&’*@:,°=!-()%.+#?/ (and space character) Navigating to the right is accomplished using the RIGHT ARROW button. Navigating to the left is accomplished using the DEL button.
  • Page 46 Figure 40 - Display Lock Menu Screen NOTE: The CoolTouch factory default PIN is 1234. Set Access Locked by PIN- This parameter controls the display access level at which PIN access is required. There are 5 levels of access restriction including OFF (no restriction), each of which is a progressively higher (earlier) in the access allowed: - None (no lock or restriction, factory default) - Control Parameters - access without the PIN is allowed to the Home &...

  • Page 47: Cleaning Mode

    The screen and touch panel will turn on again automatically in 30 seconds. Normal system operation is not affected during this time. Northern Lights recommends that a soft, non-abrasive cloth be used with a small amount of rubbing alcohol to clean the display.

  • Page 48: Wi-Fi Settings (Optional Cooltouch Feature)

    15.6 Wi-Fi Settings (optional CoolTouch feature) The Wi-Fi Settings Menu allows the editing of the various Wi-FI SSID, password, and IP address settings. Also, the detailed live status of the Wi-Fi connection can also be viewed. This menu will only be selectable if the CoolTouch has the optional Wi-Fi hardware feature installed.

  • Page 49: Troubleshoot & Commission Menu

    Network Name (SSID) & Password - The Wi-Fi Network Name (SSID) and Password can be set via the screen shown in Figure 46. If the network does not use a password, the password setting does not matter and can be left at any value (e.g.

  • Page 50: System Status

    Figure 48 - Troubleshoot & Commission Menu Screen 16.1 System Status The System Status displays the live readings from all the sensors and pressure switches, the status of the AC outputs and the AC input voltage & frequency. Uninstalled temperature sensors are indicated by the display of “---”.

  • Page 51: Commission Procedure

    16.3 Commission Procedure The Commission Procedure provides step-by-step instructions on how to verify the operation of a DX or CW system. It reads all of the important sensor and switch inputs, exercises the AC outputs, and prompts the user to verify a number of different items. Successful completion of the entire Commission Procedure will add an entry into the Fault History to provide a record that the procedure was carried out.

  • Page 52: Compressor Run Hours

    Figure 55 - Fault History Display Screen NOTE: The Fault History is an excellent troubleshooting tool and can only have maximum effectiveness if the Date & Time are set correctly. See section 14 for more information on how to properly set the Date &...

  • Page 53: Specifications

    18. SPECIFICATIONS OPERATIONAL Set Point Operating Range (single) 65°F to 85°F (18°C to 30°C) Set Point Operating Range (dual, cool mode) 65°F to 95°F (18°C to 35°C) Set Point Operating Range (dual, heat mode) 55°F to 85°F (13°C to 30°C) Ambient Temperature Operating Range Displayed 5°F to 150°F (-15°C to 65°C) Sensor Accuracy...

  • Page 54: Warranty Agreement

    Our obligation under this warranty is expressly limited at our option, to the replacement or the repair at Northern Lights or at a service facility designated by us, of such parts, as inspection shall disclose to have been defective. This warranty does not apply to defects caused by damage or unreasonable use, including failure to provide reasonable and necessary maintenance, while in the possession of the consumer.

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